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Sample Business Contracts

Underwriting Agreement - Portal Software Inc., Goldman, Sachs & Co., BancBoston Robertson Stephens Inc., Credit Suisse First Boston Corp., Donaldson, Lufkin & Jenrette Securities Corp. and Hambrecht & Quist LLC

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                             PORTAL SOFTWARE, INC.

                                  Common Stock
                                5,000,000 shares
                          (par value $.001 per share)


                             Underwriting Agreement
                             ----------------------


                                                            September __, 1999


Goldman, Sachs & Co.
BancBoston Robertson Stephens Inc.
Credit Suisse First Boston Corporation
Donaldson, Lufkin & Jenrette Securities Corporation
Hambrecht & Quist LLC
  As representatives of the several Underwriters
  named in Schedule I hereto,
c/o Goldman, Sachs & Co.
85 Broad Street
New York, New York 10004

Ladies and Gentlemen:

     Portal Software, Inc., a Delaware corporation (the "Company"), proposes,
subject to the terms and conditions stated herein, to issue and sell to the
Underwriters named in Schedule I hereto (the "Underwriters") an aggregate of
2,000,000 shares and, at the election of the Underwriters, up to 750,000
additional shares of Common Stock, par value $.001 per share ("Stock"), of the
Company, and the stockholders of the Company named in Schedule II hereto (the
"Selling Stockholders") propose, subject to the terms and conditions stated
herein, to sell to the Underwriters an aggregate of 3,000,000 shares of Stock.
The aggregate of 5,000,000 shares to be sold by the Company and the Selling
Stockholders is herein called the "Firm Shares" and the aggregate of 750,000
additional shares to be sold by the Company is herein called the "Optional
Shares".  The Firm Shares and the Optional Shares that the Underwriters elect to
purchase pursuant to Section 2 hereof are herein collectively called the
"Shares".

1.     (a)     The Company represents and warrants to, and agrees with, each of
the Underwriters that:

<PAGE>

       (i) A registration statement on Form S-1 (File No. 333-86183) (the
       "Initial Registration Statement") in respect of the Shares has been filed
       with the Securities and Exchange Commission (the "Commission"); the
       Initial Registration Statement and any post-effective amendment thereto,
       each in the form heretofore delivered to you, and, excluding exhibits
       thereto, for each of the other Underwriters, have been declared effective
       by the Commission in such form; other than a registration statement, if
       any, increasing the size of the offering (a "Rule 462(b) Registration
       Statement"), filed pursuant to Rule 462(b) under the Securities Act of
       1933, as amended (the "Act"), which became effective upon filing, no
       other document with respect to the Initial Registration Statement has
       heretofore been filed with the Commission; and no stop order suspending
       the effectiveness of the Initial Registration Statement, any post-
       effective amendment thereto or the Rule 462(b) Registration Statement, if
       any, has been issued and no proceeding for that purpose has been
       initiated or threatened by the Commission (any preliminary prospectus
       included in the Initial Registration Statement or filed with the
       Commission pursuant to Rule 424(a) of the rules and regulations of the
       Commission under the Act is hereinafter called a "Preliminary
       Prospectus"; the various parts of the Initial Registration Statement and
       the Rule 462(b) Registration Statement, if any, including all exhibits
       thereto and including the information contained in the form of final
       prospectus filed with the Commission pursuant to Rule 424(b) under the
       Act in accordance with Section 5(a) hereof and deemed by virtue of Rule
       430A under the Act to be part of the Initial Registration Statement at
       the time it was declared effective or such part of the Rule 462(b)
       Registration Statement, if any, became or hereafter becomes effective,
       each as amended at the time such part of the Initial Registration
       Statement became effective, are hereinafter collectively called the
       "Registration Statement"; and such final prospectus, in the form first
       filed pursuant to Rule 424(b) under the Act, is hereinafter called the
       "Prospectus");

       (ii) No order preventing or suspending the use of any Preliminary
       Prospectus has been issued by the Commission, and each Preliminary
       Prospectus, at the time of filing thereof, conformed in all material
       respects to the requirements of the Act and the rules and regulations of
       the Commission thereunder, and did not contain an untrue statement of a
       material fact or omit to state a material fact required to be stated
       therein or necessary to make the statements therein, in the light of the
       circumstances under which they were made, not misleading; provided,
       however, that this representation and warranty shall not apply to any
       statements or omissions made in reliance upon and in conformity with
       information furnished in writing to the Company by an Underwriter through
       Goldman, Sachs & Co. expressly for use therein;

       (iii) The Registration Statement conforms, and the Prospectus
       and any further amendments or supplements to the Registration Statement
       or the Prospectus will conform, in all material respects to the
       requirements of the Act and the rules and regulations of the Commission
       thereunder and do not and will not, as of the applicable effective date
       as to the Registration Statement and any amendment thereto, and as of the
       applicable filing date as to the Prospectus and any amendment or
       supplement thereto, contain an untrue statement of a material fact or
       omit to state a material fact required to be stated therein or necessary

                                       2
<PAGE>

       to make the statements therein not misleading; provided, however, that
       this representation and warranty shall not apply to any statements or
       omissions made in reliance upon and in conformity with information
       furnished in writing to the Company by an Underwriter through Goldman,
       Sachs & Co. expressly for use therein;

       (iv) Neither the Company nor any of its subsidiaries (as defined in Rule
       405 of the rules and regulations under the Act), taken as a whole, has
       sustained since the date of the latest audited financial statements
       included in the Prospectus any material loss or interference with its
       business from fire, explosion, flood or other calamity, whether or not
       covered by insurance, or from any labor dispute or court or governmental
       action, order or decree, otherwise than as set forth or contemplated in
       the Prospectus; and, since the respective dates as of which information
       is given in the Registration Statement and the Prospectus, there has not
       been any change in the capital stock or long-term debt of the Company or
       any of its subsidiaries, there have been no transactions entered into by
       the Company or any of its subsidiaries, other than those in the ordinary
       course of business, which are material with respect to the Company and
       its subsidiaries considered as one enterprise, other than as set forth or
       contemplated in the Prospectus, there has been no dividend or
       distribution of any kind declared, paid or made by the Company on any
       class of its capital stock (other than the repurchase of shares of its
       Common Stock in accordance with its Stock Option Plan) or any material
       adverse change, or any development which could reasonably be expected to
       result in a prospective material adverse change, in or affecting the
       general affairs, management, financial position, stockholders' equity or
       results of operations of the Company and its subsidiaries taken as a
       whole, otherwise than as set forth or contemplated in the Prospectus;

       (v) Neither the Company nor its subsidiaries own any real property and
       the Company and its subsidiaries have good and marketable title to all
       personal property owned by them, in each case free and clear of all
       liens, encumbrances and defects except such as are described in the
       Prospectus or such as do not materially affect the value of such property
       and do not materially interfere with the use made and proposed to be made
       of such property by the Company and its subsidiaries; and any real
       property and buildings held under lease by the Company and its
       subsidiaries are held by them under valid, subsisting and enforceable
       leases with such exceptions as are not material and do not interfere with
       the use made and proposed to be made of such property and buildings by
       the Company and its subsidiaries;

       (vi) The Company and its subsidiaries have sufficient interests in, all
       patents, patent rights, licenses, inventions, copyrights, know-how
       (including trade secrets and other unpatented and/or unpatentable
       proprietary or confidential information, systems or procedures),
       trademarks, service marks, trade names or other intellectual property
       (collectively, "Intellectual Property") necessary for their business as
       described in the Prospectus, and neither the Company nor any of its
       subsidiaries has received any notice or is otherwise aware of any
       infringement of or conflict with asserted rights of others with

                                       3
<PAGE>

       respect to any Intellectual Property which, singly or in the aggregate,
       could reasonably be expected to have a material adverse effect on the
       general affairs, management, the current or future consolidated financial
       position, stockholders' equity or results of operations of the Company
       and its subsidiaries taken as a whole (a "Material Adverse Effect");

       (vii) The Company has been duly incorporated and is validly existing as a
       corporation in good standing under the laws of the State of Delaware,
       with corporate power and authority to own its properties and conduct its
       business as described in the Prospectus, and has been duly qualified as a
       foreign corporation for the transaction of business and is in good
       standing under the laws of each other jurisdiction in which it owns or
       leases properties or conducts any business so as to require such
       qualification, except where the failure to so qualify would not in the
       aggregate have a Material Adverse Effect; and each subsidiary of the
       Company has been duly incorporated and is validly existing as a
       corporation in good standing under the laws of its jurisdiction of
       incorporation;

       (viii) The Company has an authorized capitalization as set forth in the
       Prospectus, and all of the issued shares of capital stock of the Company
       have been duly and validly authorized and issued, are fully paid and non-
       assessable and conform to the description of the Stock contained in the
       Prospectus; and all of the issued shares of capital stock of each
       subsidiary of the Company have been duly and validly authorized and
       issued, are fully paid and non-assessable and (except for directors'
       qualifying shares or as otherwise set forth in the Prospectus) are owned
       directly or indirectly by the Company, free and clear of all liens,
       encumbrances, equitable interests or claims;

       (ix) The Shares to be issued and sold by the Company to the Underwriters
       hereunder have been duly and validly authorized and, when issued and
       delivered against payment therefor as provided herein, will be duly and
       validly issued and fully paid and non-assessable and will conform to the
       description of the Stock contained in the Prospectus;

       (x) The issue and sale of the Shares by the Company and the compliance by
       the Company with all of the provisions of this Agreement and the
       consummation of the transactions herein contemplated will not conflict
       with or result in a breach or violation of any of the terms or provisions
       of, or constitute a default under, any indenture, mortgage, deed of
       trust, loan agreement or other agreement or instrument to which the
       Company or any of its subsidiaries is a party or by which the Company or
       any of its subsidiaries is bound or to which any of the property or
       assets of the Company or any of its subsidiaries is subject, nor will
       such action result in any violation of the provisions of the Certificate
       of Incorporation or By-laws of the Company or any statute or any order,
       rule or regulation of any court or governmental agency or body having
       jurisdiction over the Company or any of its subsidiaries or any of their
       properties; and no filing, consent, approval, authorization, order,
       registration or qualification of or with any such court or governmental
       agency or body

                                       4

<PAGE>

       is required for the issue and sale of the Shares or the consummation by
       the Company of the transactions contemplated by this Agreement, except
       the registration under the Act of the Shares, the approval by the
       National Association of Securities Dealers, Inc. (the "NASD") of the
       terms of the sale of the Shares and such consents, approvals,
       authorizations, registrations or qualifications as may be required under
       state securities or Blue Sky laws in connection with the purchase and
       distribution of the Shares by the Underwriters;

       (xi) Neither the Company nor any of its subsidiaries is in violation of
       its Certificate of Incorporation or By-laws or in default in the
       performance or observance of any obligation, agreement, covenant or
       condition contained in any indenture, mortgage, deed of trust, loan
       agreement, lease or other agreement or instrument to which it is a party
       or by which it or any of its properties may be bound except where any
       such default would not have a Material Adverse Effect;

       (xii) The statements set forth in the Prospectus under the caption
       "Description of Capital Stock", insofar as they purport to constitute a
       summary of the terms of the Stock, and under the caption "Underwriting",
       insofar as they purport to describe the provisions of the documents
       referred to therein, are accurate summaries and descriptions of such
       terms and provisions in all material respects;

       (xiii) Other than as described in the Prospectus, there are no persons
       with registration rights to have any securities registered pursuant to
       the Registration Statement;

       (xiv) Other than as set forth in the Prospectus, there are no
       governmental or material legal proceedings pending to which the Company
       or any of its subsidiaries is a party or of which any property of the
       Company or any of its subsidiaries is the subject, and, to the best of
       the Company's knowledge, no such proceedings are threatened or
       contemplated by governmental authorities or threatened by others;

       (xv) The Company is not and, after giving effect to the offering and sale
       of the Shares, will not be an "investment company", as such term is
       defined in the Investment Company Act of 1940, as amended (the
       "Investment Company Act");

       (xvi) Neither the Company nor any of its affiliates does business with
       the government of Cuba or with any person or affiliate located in Cuba
       within the meaning of Section 517.075, Florida Statutes;

       (xvii) The Company maintains a system of internal accounting controls
       sufficient to provide reasonable assurance that (A) transactions are
       executed in accordance with management's general or specific
       authorizations; (B) transactions are recorded as necessary to permit
       timely preparation of financial statements in conformity in all material
       respects

                                       5
<PAGE>

       with generally accepted accounting principles and to maintain asset
       accountability; (C) access to assets is permitted only in accordance with
       management's general or specific authorization; and (D) the recorded
       accountability for assets is compared with the existing assets at
       reasonable intervals and appropriate action is taken with respect to any
       differences;

       (xviii) The 1995 summary consolidated financial data and 1995 selected
       consolidated financial data included in the Registration Statement and
       the Prospectus present fairly the financial position of the Company and
       its consolidated subsidiaries at the dates indicated and for the periods
       specified; said financial data has been prepared in conformity with
       generally accepted accounting principles applied on a consistent basis
       throughout the period involved;

       (xix) Ernst & Young LLP, who have certified certain financial statements
       of the Company and its subsidiaries, are independent public accountants
       as required by the Act and the rules and regulations of the Commission
       thereunder;

       (xx) The Company has reviewed its operations and that of its subsidiaries
       and any third parties with which the Company or any of its subsidiaries
       has a material relationship to evaluate the extent to which the business
       or operations of the Company or any of its subsidiaries will be affected
       by the Year 2000 Issue. As a result of such review, the Company
       represents and warrants that the disclosure in the Registration Statement
       relating to the Year 2000 Issue is accurate and complies in all material
       respects with the rules and regulations of the Act. The "Year 2000 Issue"
       as used herein means Year 2000 Issues described in or contemplated by the
       Commission's Interpretation: "Disclosure of Year 2000 Issues and
       Consequences by Public Companies, Investment Advisers, Investment
       Companies, and Municipal Securities Issuers (Release No. 33-7558); and

       (xxi) During the prior six months, neither the Company nor any person
       acting on behalf of the Company has offered or sold to any person any
       Stock, or any securities of the same or a similar class as the Stock,
       other than the Shares and other than under restrictions and other
       circumstances reasonably designed not to become integrated into the offer
       and sale of the Shares in the United States and to U.S. persons
       contemplated by this Agreement as transactions in compliance with the
       registration provisions of the Act.

       (b) Each of the Selling Stockholders severally represents and warrants
to, and agrees with, each of the Underwriters and the Company that:

       (i) All consents, approvals, authorizations and orders necessary for the
       execution and delivery by such Selling Stockholder of this Agreement, the
       Power of Attorney and the Custody Agreement hereinafter referred to, and
       for the sale and delivery of the Shares to be sold by such Selling

                                       6
<PAGE>

       Stockholder hereunder, have been obtained; and such Selling Stockholder
       has full right, power and authority to enter into this Agreement, the
       Power of Attorney and the Custody Agreement and to sell, assign, transfer
       and deliver the Shares to be sold by such Selling Stockholder hereunder;

       (ii) The sale of the Shares to be sold by such Selling Stockholder
       hereunder and the compliance by such Selling Stockholder with all of the
       provisions of this Agreement, the Power of Attorney and the Custody
       Agreement and the consummation of the transactions herein and therein
       contemplated will not conflict with or result in a breach or violation of
       any of the terms or provisions of, or constitute a default under, any
       statute, indenture, mortgage, deed of trust, loan agreement or other
       agreement or instrument to which such Selling Stockholder is a party or
       by which such Selling Stockholder is bound or to which any of the
       property or assets of such Selling Stockholder is subject, nor will such
       action result in any violation of the provisions of the Partnership
       Agreement of such Selling Stockholder if such Selling Stockholder is a
       partnership or any statute or any order, rule or regulation of any court
       or governmental agency or body having jurisdiction over such Selling
       Stockholder or the property of such Selling Stockholder;

       (iii) Such Selling Stockholder has, and immediately prior to each Time of
       Delivery (as defined in Section 4 hereof) for the Shares such Selling
       Stockholder will have good and valid title to the Shares to be sold by
       such Selling Stockholder hereunder, free and clear of all liens,
       encumbrances, equities or claims; and, upon delivery of such Shares and
       payment therefor pursuant hereto, good and valid title to such Shares,
       free and clear of all liens, encumbrances, equities or claims, will pass
       to the several Underwriters;

       (iv) During the period beginning from the date hereof and continuing to
       and including the date 90 days after the date of the Prospectus, such
       Selling Stockholder will not offer, sell, contract to sell or otherwise
       dispose of, except as provided hereunder, any securities of the Company
       that are substantially similar to the Shares, including but not limited
       to any securities that are convertible into or exchangeable for, or that
       represent the right to receive, Stock or any such substantially similar
       securities (other than pursuant to employee stock option plans existing
       on, or upon the conversion, exercise or exchange of convertible,
       exercisable or exchangeable securities outstanding as of the date of this
       Agreement), without the prior written consent of Goldman, Sachs & Co.;

       (v) Such Selling Stockholder has not taken and will not take, directly or
       indirectly, any action which is designed to or which has constituted or
       which might reasonably be expected to cause or result in stabilization or
       manipulation of the price of any security of the Company to facilitate
       the sale or resale of the Shares;

       (vi) To the extent that any statements or omissions made in the
       Registration Statement, any Preliminary Prospectus, the Prospectus or any
       amendment or supplement thereto are

                                       7
<PAGE>

       made in reliance upon and in conformity with written information
       furnished to the Company by such Selling Stockholder expressly for use
       therein, such Preliminary Prospectus and the Registration Statement did,
       and the Prospectus and any further amendments or supplements to the
       Registration Statement and the Prospectus, when they become effective or
       are filed with the Commission, as the case may be, will conform in all
       material respects to the requirements of the Act and the rules and
       regulations of the Commission thereunder and will not contain any untrue
       statement of a material fact or omit to state any material fact required
       to be stated therein or necessary to make the statements therein not
       misleading;

       (vii) In order to document the Underwriters' compliance with the
       reporting and withholding provisions of the Tax Equity and Fiscal
       Responsibility Act of 1982 with respect to the transactions herein
       contemplated, such Selling Stockholder will deliver to you prior to or at
       the First Time of Delivery (as hereinafter defined) a properly completed
       and executed United States Treasury Department Form W-9 (or other
       applicable form or statement specified by Treasury Department regulations
       in lieu thereof);

       (viii) Certificates in negotiable form representing all of the Shares to
       be sold by such Selling Stockholder hereunder have been placed in custody
       under a Custody Agreement, in the form heretofore furnished to you (the
       "Custody Agreement"), duly executed and delivered by such Selling
       Stockholder to EquiServe, as custodian (the "Custodian"), and such
       Selling Stockholder has duly executed and delivered a Power of Attorney,
       in the form heretofore furnished to you (the "Power of Attorney"),
       appointing ___________, ___________ and ___________, and each of them, as
       such Selling Stockholder's attorneys-in-fact (the "Attorneys-in-Fact")
       with authority to execute and deliver this Agreement on behalf of such
       Selling Stockholder, to determine (together with the pricing committee of
       the Company's Board of Directors) the purchase price to be paid by the
       Underwriters to the Selling Stockholders as provided in Section 2 hereof,
       to authorize the delivery of the Shares to be sold by such Selling
       Stockholder hereunder and otherwise to act on behalf of such Selling
       Stockholder in connection with the transactions contemplated by this
       Agreement and the Custody Agreement; and

       (ix) The Shares represented by the certificates held in custody for such
       Selling Stockholder under the Custody Agreement are subject to the
       interests of the Underwriters hereunder; the arrangements made by such
       Selling Stockholder for such custody, and the appointment by such Selling
       Stockholder of the Attorneys-in-Fact by the Power of Attorney, are to
       that extent irrevocable; the obligations of the Selling Stockholders
       hereunder shall not be terminated by operation of law, whether by the
       death or incapacity of any individual Selling Stockholder or, in the case
       of an estate or trust, by the death or incapacity of any executor or
       trustee or the termination of such estate or trust, or in the case of a
       partnership, by the dissolution of such partnership, or by the occurrence
       of any other event; if any individual Selling Stockholder or any such
       executor or trustee should die or become

                                       8
<PAGE>

       incapacitated, or if any such estate or trust should be terminated, or if
       any such partnership should be dissolved, or if any other such event
       should occur, before the delivery of the Shares hereunder, certificates
       representing the Shares shall be delivered by or on behalf of the Selling
       Stockholders in accordance with the terms and conditions of this
       Agreement and of the Custody Agreements; and actions taken by the
       Attorneys-in-Fact pursuant to the Powers of Attorney shall be as valid as
       if such death, incapacity, termination, dissolution or other event had
       not occurred, regardless of whether or not the Custodian, the Attorneys-
       in-Fact, or any of them, shall have received notice of such death,
       incapacity, termination, dissolution or other event.

2. Subject to the terms and conditions herein set forth, (a) the Company and
each of the Selling Stockholders, severally and not jointly, agree to sell to
each of the Underwriters, and each of the Underwriters agrees, severally and not
jointly, to purchase from the Company and each of the Selling Stockholders, at a
purchase price per share of $__.__, the number of Firm Shares (to be adjusted by
you so as to eliminate fractional shares) determined by multiplying the
aggregate number of Shares to be sold by the Company and each of the Selling
Stockholders as set forth opposite their respective names in Schedule II hereto
by a fraction, the numerator of which is the aggregate number of Firm Shares to
be purchased by such Underwriter as set forth opposite the name of such
Underwriter in Schedule I hereto and the denominator of which is the aggregate
number of Firm Shares to be purchased by all of the Underwriters from the
Company and all of the Selling Stockholders hereunder and (b) in the event and
to the extent that the Underwriters shall exercise the election to purchase
Optional Shares as provided below, the Company agrees to sell to each of the
Underwriters, and each of the Underwriters agrees, severally and not jointly, to
purchase from the Company, at the purchase price per share set forth in clause
(a) of this Section 2, that portion of the number of Optional Shares as to which
such election shall have been exercised (to be adjusted by you so as to
eliminate fractional shares) determined by multiplying such number of Optional
Shares by a fraction the numerator of which is the maximum number of Optional
Shares which such Underwriter is entitled to purchase as set forth opposite the
name of such Underwriter in Schedule I hereto and the denominator of which is
the maximum number of Optional Shares that all of the Underwriters are entitled
to purchase hereunder.

       The Company hereby grants to the Underwriters the right to purchase at
their election up to 750,000 Optional Shares, at the purchase price per share
set forth in the paragraph above, for the sole purpose of covering sales of
shares in excess of the number of Firm Shares. Any such election to purchase
Optional Shares may be exercised only by written notice from you to the Company,
given within a period of 30 calendar days after the date of this Agreement and
setting forth the aggregate number of Optional Shares to be purchased and the
date on which such Optional Shares are to be delivered, as determined by you but
in no event earlier than the First Time of Delivery (as defined in Section 4
hereof) or, unless you and the Company otherwise agree in writing, earlier than
two or later than ten business days after the date of such notice.

                                       9
<PAGE>

3. Upon the authorization by you of the release of the Firm Shares, the several
Underwriters propose to offer the Firm Shares for sale upon the terms and
conditions set forth in the Prospectus.

4. (a) The Shares to be purchased by each Underwriter hereunder, in definitive
form, and in such authorized denominations and registered in such names as
Goldman, Sachs & Co. may request upon at least forty-eight hours' prior notice
to the Company and the Attorneys-in-Fact, shall be delivered by or on behalf of
the Company and the Selling Stockholders to Goldman, Sachs & Co., through the
facilities of the Depository Trust Company ("DTC"), for the account of such
Underwriter, against payment by or on behalf of such Underwriter of the purchase
price therefor by wire transfer of Federal (same-day) funds to the account
specified by the Company and each of the Selling Stockholders, as their
interests may appear, to Goldman, Sachs & Co. at least forty-eight hours in
advance. The Company will cause the certificates representing the Shares to be
made available for checking and packaging at least twenty-four hours prior to
the Time of Delivery (as defined below) with respect thereto at the office of
DTC or its designated custodian (the "Designated Office"). The time and date of
such delivery and payment shall be, with respect to the Firm Shares, 9:30 A.M.,
New York City time, on September __, 1999 or such other time and date as
Goldman, Sachs & Co. and the Company and the Attorneys-in-Fact may agree upon in
writing, and, with respect to the Optional Shares, 9:30 A.M., New York City
time, on the date specified by Goldman, Sachs & Co. in the written notice given
by Goldman, Sachs & Co. of the Underwriters' election to purchase such Optional
Shares, or such other time and date as Goldman, Sachs & Co., the Company and the
Attorneys-in-Fact may agree upon in writing. Such time and date for delivery of
the Firm Shares is herein called the "First Time of Delivery", such time and
date for delivery of the Optional Shares, if not the First Time of Delivery, is
herein called the "Second Time of Delivery", and each such time and date for
delivery is herein called a "Time of Delivery".

       (b) The documents to be delivered at each Time of Delivery by or on
behalf of the parties hereto pursuant to Section 7 hereof, including the cross
receipt for the Shares and any additional documents requested by the
Underwriters pursuant to Section 7(l) hereof, will be delivered at the offices
of Brobeck, Phleger & Harrison LLP, 2200 Geng Road, Palo Alto, California 94303
(the "Closing Location"), and the Shares will be delivered at the Designated
Office, all at such Time of Delivery. A meeting will be held at the Closing
Location at 7:00 P.M., New York City time, on the New York Business Day next
preceding such Time of Delivery, at which meeting the final drafts of the
documents to be delivered pursuant to the preceding sentence will be available
for review by the parties hereto. For the purposes of this Section 4, "New York
Business Day" shall mean each Monday, Tuesday, Wednesday, Thursday and Friday
which is not a day on which banking institutions in New York are generally
authorized or obligated by law or executive order to close.

5.     The Company agrees with each of the Underwriters:

       (a) To prepare the Prospectus in a form approved by you and to file such
Prospectus pursuant to Rule 424(b) under the Act not later than the Commission's
close of business on the second business day following the execution and
delivery of this Agreement, or, if applicable, such earlier time

                                       10
<PAGE>

as may be required by Rule 430A(a)(3) under the Act; to make no further
amendment or any supplement to the Registration Statement or Prospectus which
shall be disapproved by you promptly after reasonable notice thereof; to advise
you, promptly after it receives notice thereof, of the time when any amendment
to the Registration Statement has been filed or becomes effective or any
supplement to the Prospectus or any amended Prospectus has been filed and to
furnish you with copies thereof; to advise you, promptly after it receives
notice thereof, of the issuance by the Commission of any stop order or of any
order preventing or suspending the use of any Preliminary Prospectus or
prospectus, of the suspension of the qualification of the Shares for offering or
sale in any jurisdiction, of the initiation or threatening of any proceeding for
any such purpose, or of any request by the Commission for the amending or
supplementing of the Registration Statement or Prospectus or for additional
information; and, in the event of the issuance of any stop order or of any order
preventing or suspending the use of any Preliminary Prospectus or prospectus or
suspending any such qualification, promptly to use its best efforts to obtain
the withdrawal of such order;

       (b) Promptly from time to time to take such action as you may reasonably
request to qualify the Shares for offering and sale under the securities laws of
such jurisdictions as you may request and to comply with such laws so as to
permit the continuance of sales and dealings therein in such jurisdictions for
as long as may be necessary to complete the distribution of the Shares, provided
that in connection therewith the Company shall not be required to qualify as a
foreign corporation or to file a general consent to service of process in any
jurisdiction;

       (c) Prior to 10:00 A.M., New York City time, on the New York Business Day
next succeeding the date of this Agreement and from time to time, to furnish the
Underwriters with copies of the Prospectus in New York City in such quantities
as you may reasonably request, and, if the delivery of a prospectus is required
at any time prior to the expiration of nine months after the time of issue of
the Prospectus in connection with the offering or sale of the Shares and if at
such time any event shall have occurred as a result of which the Prospectus as
then amended or supplemented would include an untrue statement of a material
fact or omit to state any material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were made
when such Prospectus is delivered, not misleading, or, if for any other reason
it shall be necessary during such period to amend or supplement the Prospectus
in order to comply with the Act, to notify you and upon your request to prepare
and furnish without charge to each Underwriter and to any dealer in securities
as many copies as you may from time to time reasonably request of an amended
Prospectus or a supplement to the Prospectus which will correct such statement
or omission or effect such compliance, and in case any Underwriter is required
to deliver a prospectus in connection with sales of any of the Shares at any
time nine months or more after the time of issue of the Prospectus, upon your
request but at the expense of such Underwriter, to prepare and deliver to such
Underwriter as many copies as you may request of an amended or supplemented
Prospectus complying with Section 10(a)(3) of the Act;

       (d) To make generally available to its securityholders as soon as
practicable, but in any event not later than eighteen months after the effective
date of the Registration Statement (as defined in Rule

                                       11
<PAGE>

158(c) under the Act), an earnings statement of the Company and its subsidiaries
(which need not be audited) complying with Section 11(a) of the Act and the
rules and regulations of the Commission thereunder (including, at the option of
the Company, Rule 158);

       (e) During the period beginning from the date hereof and continuing to
and including the date 90 days after the date of the Prospectus, not to offer,
sell, contract to sell or otherwise dispose of, except as provided hereunder any
securities of the Company that are substantially similar to the Shares,
including but not limited to any securities that are convertible into or
exchangeable for, or that represent the right to receive, Stock or any such
substantially similar securities (other than pursuant to employee stock option
plans existing on, or upon the conversion, exercise or exchange of convertible,
exercisable or exchangeable securities outstanding as of, the date of this
Agreement), without the prior written consent of Goldman, Sachs & Co.;

       (f) To furnish to its stockholders as soon as practicable after the end
of each fiscal year an annual report (including a balance sheet and statements
of income, stockholders' equity and cash flows of the Company and its
consolidated subsidiaries certified by independent public accountants) and, as
soon as practicable after the end of each of the first three quarters of each
fiscal year (beginning with the fiscal quarter ending after the effective date
of the Registration Statement), to make available to its stockholders
consolidated summary financial information of the Company and its subsidiaries
for such quarter in reasonable detail;

       (g) During a period of three years from the effective date of the
Registration Statement, to furnish to you copies of all reports or other
communications (financial or other) furnished to stockholders, and to deliver to
you (i) as soon as they are available, copies of any reports and financial
statements furnished to or filed with the Commission or any national securities
exchange on which any class of securities of the Company is listed; and (ii)
such additional information concerning the business and financial condition of
the Company as you may from time to time reasonably request (such financial
statements to be on a consolidated basis to the extent the accounts of the
Company and its subsidiaries are consolidated in reports furnished to its
stockholders generally or to the Commission);

       (h) To use the net proceeds received by it from the sale of the Shares
pursuant to this Agreement in the manner specified in the Prospectus under the
caption "Use of Proceeds";

       (i) To use its best efforts to list for quotation the Shares on the
National Association of Securities Dealers Automated Quotations National Market
System ("NASDAQ");

       (j) If the Company elects to rely upon Rule 462(b), the Company shall
file a Rule 462(b) Registration Statement with the Commission in compliance with
Rule 462(b) by 10:00 P.M., Washington, D.C. time, on the date of this Agreement,
and the Company shall at the time of filing either pay to the Commission the
filing fee for the Rule 462(b) Registration Statement or give irrevocable
instructions for the payment of such fee pursuant to Rule 111(b) under the Act;

                                       12
<PAGE>

       (k) Within the succeeding six months, neither the Company nor any person
acting on behalf of the Company will offer or sell to any person any Stock, or
any securities of the same or a similar class as the Stock, other than the
Shares and other than under restrictions and other circumstances reasonably
designed not to become integrated into the offer and sale of the Shares in the
United States and to U.S. persons contemplated by this Agreement as transactions
in compliance with the registration provisions of the Act; and

       [(l) During the period beginning from the date hereof and continuing to
and including the date 90 days after the date of the Prospectus, to impose stop-
transfer instructions with respect to all securities presently held by
Chancellor LGT Private Capital Partners III, L.P., Chancellor LGT Private
Capital Offshore Partners I, C.V., Chancellor LGT Private Capital Offshore
Partners II, L.P., Citiventure 96 Partnership, L.P. and William Lee III in
accordance with written agreements between the Company and such persons.]

6. The Company and each of the Selling Stockholders covenant and agree with the
several Underwriters that the Company will pay or cause to be paid the
following: (i) the fees, disbursements and expenses of the Company's counsel and
accountants in connection with the registration of the Shares under the Act and
all other expenses in connection with the preparation, printing and filing of
the Registration Statement, any Preliminary Prospectus and the Prospectus and
amendments and supplements thereto and the mailing and delivering of copies
thereof to the Underwriters and dealers; (ii) the cost of printing or producing
any Agreement among Underwriters, this Agreement, the Blue Sky Memorandum,
closing documents (including any compilations thereof) and any other documents
in connection with the offering, purchase, sale and delivery of the Shares;
(iii) all reasonable expenses in connection with the qualification of the Shares
for offering and sale under state securities laws as provided in Section 5(b)
hereof, including the fees and disbursements of counsel for the Underwriters in
connection with such qualification and in connection with the Blue Sky survey
(iv) all fees and expenses in connection with listing the Shares on NASDAQ; (v)
the filing fees incident to, and the fees and disbursements of counsel for the
Underwriters in connection with, securing any required review by the National
Association of Securities Dealers, Inc. of the terms of the sale of the Shares;
(vi) the cost of preparing stock certificates; (vii) the cost and charges of any
transfer agent or registrar; (viii) the fees and expenses of the Attorneys-in-
Fact and the Custodian; and (ix) all other costs and expenses incident to the
performance of its obligations hereunder which are not otherwise specifically
provided for in this Section. Each Selling Stockholder, severally and not
jointly, covenants and agrees with the several Underwriters that such Selling
Stockholder will pay or cause to be paid all costs and expenses incident to the
performance of such Selling Stockholder's obligations hereunder which are not
otherwise specifically provided for in this Section, including (i) any fees and
expenses of counsel for such Selling Stockholder, if any, and (ii) all expenses
and taxes incident to the sale and delivery of the Shares to be sold by such
Selling Stockholder to the Underwriters hereunder. In connection with the
preceding sentence, Goldman, Sachs & Co. agrees to pay New York State stock
transfer tax, and the Selling Stockholders agree to reimburse Goldman, Sachs &
Co. for associated carrying costs if such tax payment is not rebated on the day
of payment and for any portion of such tax payment not rebated. It is

                                       13
<PAGE>

understood, however, that the Company shall bear, and the Selling Stockholders
shall not be required to pay or to reimburse the Company for, the cost of any
other matters not directly relating to the sale and purchase of the Shares
pursuant to this Agreement, and that, except as provided in this Section, and
Sections 8 and 11 hereof, the Underwriters will pay all of their own costs and
expenses, including the fees of their counsel, stock transfer taxes on resale of
any of the Shares by them, and any advertising expenses connected with any
offers they may make.

7. The obligations of the Underwriters hereunder, as to the Shares to be
delivered at each Time of Delivery, shall be subject, in their discretion, to
the condition that all representations and warranties and other statements of
the Company and the Selling Stockholders herein are, at and as of such Time of
Delivery, true and correct, the condition that the Company and the Selling
Stockholders shall have performed all of their respective obligations hereunder
theretofore to be performed, and the following additional conditions:

       (a) The Prospectus shall have been filed with the Commission pursuant to
Rule 424(b) within the applicable time period prescribed for such filing by the
rules and regulations under the Act and in accordance with Section 5(a) hereof;
if the Company has elected to rely upon Rule 462(b), the Rule 462(b)
Registration Statement shall have been filed by 10:00 P.M., Washington, D.C.
time, on the date of this Agreement; no stop order suspending the effectiveness
of the Registration Statement or any part thereof shall have been issued and no
proceeding for that purpose shall have been initiated or threatened by the
Commission; and all requests for additional information on the part of the
Commission shall have been complied with to your reasonable satisfaction;

       (b) Shearman & Sterling, counsel for the Underwriters, shall have
furnished to you such written opinion or opinions (a draft of each such opinion
is attached as Annex II(a) hereto), dated such Time of Delivery, with respect to
certain matters regarding the incorporation and legal existence of the Company,
the Shares, this Agreement, the statements set forth in the Prospectus under the
captions "Description of Capital Stock" and "Underwriting," and the final
paragraph of subsection (c) below as well as such other related matters as you
may reasonably request, and such counsel shall have received such papers and
information as they may reasonably request to enable them to pass upon such
matters;

       (c) Brobeck, Phleger & Harrison LLP, counsel for the Company, shall have
furnished to you their written opinion (a draft of such opinion is attached as
Annex II(b) hereto), dated such Time of Delivery, in form and substance
satisfactory to you, to the effect that:

       (i) The Company has been duly incorporated and is validly existing as a
       corporation in good standing under the laws of the State of Delaware,
       with corporate power and authority to own its properties and conduct its
       business as described in the Prospectus;

       (ii) The authorized, issued and outstanding capital stock as of September
       __, 1999 is as set forth under the heading "Capitalization" in the
       Prospectus, and all of the issued shares

                                       14
<PAGE>

       of capital stock of the Company have been duly and validly authorized and
       issued and to such counsel's knowledge are fully paid and non-assessable;

       (iii) The Shares have been duly authorized and, when issued and delivered
       by the Underwriters in accordance with the terms of the Underwriting
       Agreement, will be validly issued, fully paid and non-assessable;

       (iv) The Company has been duly qualified as a foreign corporation for the
       transaction of business and is in good standing under the laws of each
       other jurisdiction in which it owns or leases properties or conducts any
       business so as to require such qualification except where the failure to
       so register or qualify would not have a Material Adverse Effect (such
       counsel being entitled to rely in respect of the opinion in this clause
       upon opinions of local counsel and in respect of matters of fact upon
       certificates of officers of the Company, provided that such counsel shall
       state that they believe that both you and they are justified in relying
       upon such opinions and certificates and provided that such counsel shall
       provide you copies of any such opinions and certificates);

       (v) Each U.S. subsidiary of the Company, based solely on certificates of
       public officials of each applicable jurisdiction, has been duly
       incorporated and is validly existing as a corporation in good standing
       under the laws of its jurisdiction of incorporation; and all of the
       issued shares of capital stock of each such subsidiary have been duly and
       validly authorized and issued, are fully paid and non-assessable, and
       (except for directors' qualifying shares) are owned directly or
       indirectly by the Company, free and clear of all liens, encumbrances,
       equities or claims (such counsel being entitled to rely in respect of the
       opinion in this clause upon opinions of local counsel and in respect to
       matters of fact upon certificates of officers of the Company or its
       subsidiaries, provided that such counsel shall state that they believe
       that both you and they are justified in relying upon such opinions and
       certificates and provided that such counsel shall provide you copies of
       any such opinions and certificates);

       (vi) To such counsel's knowledge and other than as set forth in the
       Prospectus, there are no governmental or material legal proceedings
       pending to which the Company or any of its subsidiaries is a party or of
       which any property of the Company or any of its subsidiaries is the
       subject which are required to be described in the Registration Statement
       that are not so described; and, to such counsel's knowledge, no such
       proceedings are threatened or contemplated by governmental authorities or
       threatened by others;

       (vii) This Agreement has been duly authorized, executed and delivered by
       the Company;

       (viii) The issue and sale of the Shares being delivered at such Time of
       Delivery by the Company and the compliance by the Company with all of the
       provisions of this Agreement

                                       15
<PAGE>

       and the consummation of the transactions herein contemplated will not
       conflict with or result in a breach or violation of any of the material
       terms or provisions of, or constitute a material default under, any
       indenture, mortgage, deed of trust, loan agreement or other agreement or
       instrument attached to the registration statement on Form S-1 (File No.
       333-72999) and the Registration Statement, nor will such action result in
       any violation of the provisions of the Certificate of Incorporation or
       By-laws of the Company or any existing Delaware general corporate,
       California or Federal statute or any order, rule or regulation known to
       such counsel of any court or governmental agency or body having
       jurisdiction over the Company or any of its subsidiaries or any of their
       properties and to our knowledge the issuance of the Shares is not subject
       to preemptive rights arising under the Certificate of Incorporation or
       the Delaware General Corporation Law or to our knowledge similar rights
       that entitle or would entitle any person or entity to acquire any shares
       of capital stock of the Company upon the sale and issuance of the Shares
       by the Company;

       (ix) No filing, consent, approval, authorization, order, registration or
       qualification of or with any such court or governmental agency or body is
       required for the issue and sale of the Shares or the consummation by the
       Company of the transactions contemplated by this Agreement, except the
       registration under the Act and the Securities Exchange Act of 1934, as
       amended (the "Exchange Act"), of the Shares, and such consents,
       approvals, authorizations, registrations or qualifications as may be
       required under state securities or Blue Sky laws in connection with the
       purchase and distribution of the Shares by the Underwriters;

       (x) To such counsel's knowledge, neither the Company nor any of its
       subsidiaries is in violation of its Certificate of Incorporation or By-
       laws or in default in the performance or observance of any material
       obligation, agreement, covenant or condition contained in any indenture,
       mortgage, deed of trust, loan agreement, lease or other agreement or
       instrument attached to the registration statement on Form S-1 (File No.
       333-72999) and the Registration Statement;

       (xi) The statements set forth in the Prospectus under the caption
       "Description of Capital Stock", insofar as they purport to constitute a
       summary of the terms of the Stock, and under the caption "Legal
       Proceedings" to the extent that it constitutes matters of law, summaries
       of legal matters, the Company's charter and by-laws or legal proceedings,
       or legal conclusions, has been reviewed by us and are correct in all
       material respects;

       (xii) To the best of such counsel's knowledge and other than as set forth
       in the Prospectus, there are no persons with registration rights or other
       similar rights to have any securities registered pursuant to the
       Registration Statement;

                                       16
<PAGE>

       (xiii) To such counsel's knowledge, based upon oral advice of the staff
       of the Commission, the Registration Statement, including any Rule 462(b)
       Registration Statement, has been declared effective under the Act; any
       required filing of the Prospectus pursuant to Rule 424(b) has been made
       in the manner and within the time period required by Rule 424(b); and, to
       the best of our knowledge, based upon oral advice of the staff of the
       Commission, no stop order suspending the effectiveness of the
       Registration Statement or any Rule 462(b) Registration Statement has been
       issued under the Act and no proceedings for that purpose have been
       instituted or are pending or threatened by the Commission;

       (xiv) The Company is not an "investment company", as such term is defined
       in the Investment Company Act; and

       (xv) The Registration Statement and the Prospectus and any further
       amendments and supplements thereto made by the Company prior to such Time
       of Delivery (other than the financial statements and related schedules
       therein, as to which such counsel need express no opinion) comply as to
       form in all material respects with the requirements of the Act and the
       rules and regulations thereunder; and they do not know of any amendment
       to the Registration Statement required to be filed or of any contracts or
       other documents of a character required to be filed as an exhibit to the
       Registration Statement or required to be described in the Registration
       Statement or the Prospectus which are not filed or described as required;
       and

            In addition, such counsel shall state that it has participated in
       conferences with certain officers and other representatives of the
       Company, its independent public accountants, the Underwriters and the
       Underwriters' counsel at which the contents of the Registration
       Statement, the Prospectus and related matters were discussed. Such
       counsel may further specify that it is not, however, passing upon, and
       does not assume any responsibility for, and has not independently checked
       or verified, the accuracy, completeness or fairness of the information
       contained in the Registration Statement and the Prospectus, except for
       those referred to in the opinion in subsections (ii) and (xi) of this
       Section 7(c). Such counsel shall state, however, that based upon its
       participation as described in the foregoing, (i) it confirms that it has
       no reason to believe that (other than the consolidated financial
       statements, including the notes and schedules thereto and the other
       financial data included therein, as to which it need express no belief)
       the Registration Statement or any amendment thereto, at the time the
       Registration Statement became effective or as of such Time of Delivery,
       contained or contains any untrue statement of a material fact or omitted
       or omits to state a material fact required to be stated therein or
       necessary to make the statements therein not misleading; and (ii) it
       confirms that it has no reason to believe that (other than the
       consolidated financial statements, including the notes and schedules
       thereto, and the other financial data included therein, as to which it
       need express no belief) the Prospectus or any amendment or supplement
       thereto, as of its date of

                                       17
<PAGE>

       issue or as of such Time of Delivery, contained or contains any untrue
       statement of a material fact or omitted or omits to state a material fact
       necessary in order to make the statements therein, in light of the
       circumstances under which they were made, not misleading.

       (d) The respective counsel for each of the Selling Stockholders, as
indicated in Schedule II hereto, each shall have furnished to you their written
opinion with respect to each of the Selling Stockholders for whom they are
acting as counsel (a draft of each such opinion is attached as Annex II(c)
hereto), dated such Time of Delivery, in form and substance satisfactory to you,
to the effect that:

       (i) A Power of Attorney and a Custody Agreement has been duly executed
       and delivered by or on behalf of such Selling Stockholder and constitutes
       a valid and binding agreement of such Selling Stockholder in accordance
       with its terms;

       (ii) This Agreement has been duly executed and delivered by or on behalf
       of such Selling Stockholder; and the sale of the Shares to be sold by
       such Selling Stockholder hereunder and the compliance by such Selling
       Stockholder with all of the provisions of this Agreement, the Power of
       Attorney and the Custody Agreement and the consummation of the
       transactions herein and therein contemplated will not conflict with or
       result in a breach or violation of any terms or provisions of, or
       constitute a default under, any statute, indenture, mortgage, deed of
       trust, loan agreement or other agreement or instrument known to such
       counsel to which such Selling Stockholder is a party or by which such
       Selling Stockholder is bound or to which any of the property or assets of
       such Selling Stockholder is subject, nor will such action result in any
       violation of the provisions of the Partnership Agreement of such Selling
       Stockholder if such Selling Stockholder is a partnership or any order,
       rule or regulation known to such counsel of any court or governmental
       agency or body having jurisdiction over such Selling Stockholder or the
       property of such Selling Stockholder;

       (iii) To such counsel's knowledge, no consent, approval, authorization or
       order of any court or governmental agency or body is required for the
       consummation of the transactions contemplated by this Agreement in
       connection with the Shares to be sold by such Selling Stockholder
       hereunder, except such as have been duly obtained and are in full force
       and effect, such as have been obtained under the Act and such as may be
       required under state securities or Blue Sky laws in connection with the
       purchase and distribution of such Shares by the Underwriters;

       (iv) Immediately prior to such Time of Delivery, such Selling Stockholder
       had good and valid title to the Shares to be sold at such Time of
       Delivery by such Selling Stockholder under this Agreement, free and clear
       of all liens, encumbrances, equities or claims, and full

                                       18
<PAGE>

       right, power and authority to sell, assign, transfer and deliver the
       Shares to be sold by such Selling Stockholder hereunder; and

       (v) Upon delivery of and payment for the Shares to be sold by such
       Selling Stockholder as provided in this Agreement, and upon registration
       of such Shares in the stock records of the Company in the names of the
       Underwriters or their nominees, the Underwriters will be the owners of
       such Shares, free and clear of any adverse claim, provided that (A)
       neither the Underwriters nor their nominees grant any right, title or
       interest in or to such Shares to any person or entity prior to sale of
       such Shares to the public, (B) the Underwriters are purchasing such
       Shares in good faith and (C) the Underwriters, together with their
       nominees (if any), hold such Shares without notice of any adverse claim.

           In rendering the opinion in paragraph (iv), such counsel may rely
       upon a certificate of such Selling Stockholder in respect of matters of
       fact as to ownership of, and liens, encumbrances, equities or claims on,
       the Shares sold by such Selling Stockholder, provided that such counsel
       shall state that they believe that both you and they are justified in
       relying upon such certificate and provided that such counsel shall
       provide you with copies of any such certificate;

       (e) On the date of the Prospectus at a time prior to the execution of
this Agreement, at 9:30 A.M., New York City time, on the effective date of any
post-effective amendment to the Registration Statement filed subsequent to the
date of this Agreement and also at each Time of Delivery, Ernst & Young LLP
shall have furnished to you a letter or letters, dated the respective dates of
delivery thereof, in form and substance satisfactory to you, to the effect set
forth in Annex I hereto (the executed copy of the letter delivered prior to the
execution of this Agreement is attached as Annex I(a) hereto and a draft of the
form of letter to be delivered on the effective date of any post-effective
amendment to the Registration Statement and as of each Time of Delivery is
attached as Annex I(b) hereto);

       (f) (i) Neither the Company nor any of its subsidiaries shall have
sustained since the date of the latest audited financial statements included in
the Prospectus any loss or interference with its business from fire, explosion,
flood or other calamity, whether or not covered by insurance, or from any labor
dispute or court or governmental action, order or decree, otherwise than as set
forth or contemplated in the Prospectus, and (ii) since the respective dates as
of which information is given in the Prospectus there shall not have been any
change in the capital stock or long-term debt of the Company or any of its
subsidiaries or any change, or any development involving a prospective change,
in or affecting the general affairs, management, financial position,
stockholders' equity or results of operations of the Company and its
subsidiaries taken as a whole, otherwise than as set forth or contemplated in
the Prospectus, the effect of which, in any such case described in clause (i) or
(ii), is in the judgment of the representatives of the Underwriters so material
and adverse as to make it impracticable or inadvisable to proceed with the
public offering or the delivery of the Shares being delivered at such Time of
Delivery on the terms and in the manner contemplated in the Prospectus;

                                       19
<PAGE>

       (g) On or after the date hereof (i) no downgrading shall have occurred in
the rating accorded the Company's debt securities or preferred stock by any
"nationally recognized statistical rating organization", as that term is defined
by the Commission for purposes of Rule 436(g)(2) under the Act, and (ii) no such
organization shall have publicly announced that it has under surveillance or
review, with possible negative implications, its rating of any of the Company's
debt securities or preferred stock;

       (h) On or after the date hereof there shall not have occurred any of the
following: (i) a suspension or material limitation in trading in securities
generally on the New York Stock Exchange or on NASDAQ; (ii) a suspension or
material limitation in trading in the Company's securities on NASDAQ; (iii) a
general moratorium on commercial banking activities declared by either Federal
or New York or California state authorities; or (iv) the outbreak or escalation
of hostilities involving the United States or the declaration by the United
States of a national emergency or war, if the effect of any such event specified
in this clause (iv) in the judgment of the representatives of the Underwriters
makes it impracticable or inadvisable to proceed with the public offering or the
delivery of the Shares being delivered at such Time of Delivery on the terms and
in the manner contemplated in the Prospectus;

       (i) The Shares to be sold at such Time of Delivery shall have been duly
listed for quotation on NASDAQ;

       (j) The Company has obtained and delivered to the Underwriters executed
copies of an agreement from the relevant stockholders of the Company,
substantially to the effect set forth in Subsection 1(b)(iv) hereof in form and
substance satisfactory to you;

       (k) The Company shall have complied with the provisions of Section 5(c)
hereof with respect to the furnishing of prospectuses on the New York Business
Day next succeeding the date of this Agreement; and

       (l) The Company and the Attorneys-in-Fact on behalf of the Selling
Stockholders shall have furnished or caused to be furnished to you at such Time
of Delivery certificates of officers of the Company and the Selling
Stockholders, respectively, satisfactory to you as to the accuracy of the
representations and warranties of the Company and the Selling Stockholders,
respectively, herein at and as of such Time of Delivery, as to the performance
by the Company and the Selling Stockholders of all of their respective
obligations hereunder to be performed at or prior to such Time of Delivery, as
to the matters set forth in subsections (a) and (f) of this Section and as to
such other matters as you may reasonably request.

8. (a) The Company and each of ___________, ___________, and ___________
(collectively, the "Primary Selling Stockholders"), jointly and severally, will
indemnify and hold harmless each Underwriter against any losses, claims, damages
or liabilities, joint or several, to which such Underwriter may become subject,
under the Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions in respect thereof) arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in any
Preliminary Prospectus, the Registration Statement or the Prospectus,

                                       20
<PAGE>

or any amendment or supplement thereto, or arise out of or are based upon the
omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading, and
will reimburse each Underwriter for any legal or other expenses reasonably
incurred by such Underwriter in connection with investigating or defending any
such action or claim as such expenses are incurred; provided, however, that the
Company and the Primary Selling Stockholders shall not be liable in any such
case to the extent that any such loss, claim, damage or liability arises out of
or is based upon an untrue statement or alleged untrue statement or omission or
alleged omission made in any Preliminary Prospectus, the Registration Statement
or the Prospectus or any such amendment or supplement in reliance upon and in
conformity with written information furnished to the Company by any Underwriter
through Goldman, Sachs & Co. expressly for use therein; and provided further,
that the liability of any Primary Selling Stockholder under this subsection (a)
shall not exceed the aggregate net proceeds received by such Primary Selling
Stockholder hereunder.

       (b) Each of the selling stockholders named in Schedule III (collectively,
the "Non-primary Selling Stockholders") will indemnify and hold harmless each
Underwriter against any losses, claims, damages or liabilities, severally and
not jointly, to which such Underwriter may become subject, under the Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect thereof) arise out of or are based upon an untrue statement or alleged
untrue statement of a material fact contained in any Preliminary Prospectus, the
Registration Statement or the Prospectus, or any amendment or supplement
thereto, or arise out of or are based upon the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, in each case to the extent, but only to
the extent, that such untrue statement or alleged untrue statement or omission
or alleged omission was made in any Preliminary Prospectus, the Registration
Statement or the Prospectus or any such amendment or supplement in reliance upon
and in conformity with written information furnished to the Company by such Non-
primary Selling Stockholder expressly for use therein; and will reimburse each
Underwriter for any legal or other expenses reasonably incurred by such
Underwriter in connection with investigating or defending any such action or
claim as such expenses are incurred; provided, however, that the Non-primary
Selling Stockholders shall not be liable in any such case to the extent that any
such loss, claim, damage or liability arises out of or is based upon an untrue
statement or alleged untrue statement or omission or alleged omission made in
any Preliminary Prospectus, the Registration Statement or the Prospectus or any
such amendment or supplement in reliance upon and in conformity with written
information furnished to the Company by any Underwriter through Goldman, Sachs &
Co. expressly for use therein; and provided further, that the liability of any
Non-primary Selling Stockholder under this subsection (b) shall not exceed the
aggregate net proceeds received by such Non-primary Selling Stockholder
hereunder.

       (c) Each Underwriter will indemnify and hold harmless the Company and
each Selling Stockholder against any losses, claims, damages or liabilities to
which the Company or such Selling Stockholder may become subject, under the Act
or otherwise, insofar as such losses, claims, damages or liabilities (or actions
in respect thereof) arise out of or are based upon an untrue statement or
alleged untrue statement of a material fact contained in any Preliminary
Prospectus, the Registration Statement or the

                                       21
<PAGE>

Prospectus, or any amendment or supplement thereto, or arise out of or are based
upon the omission or alleged omission to state therein a material fact required
to be stated therein or necessary to make the statements therein not misleading,
in each case to the extent, but only to the extent, that such untrue statement
or alleged untrue statement or omission or alleged omission was made in any
Preliminary Prospectus, the Registration Statement or the Prospectus or any such
amendment or supplement in reliance upon and in conformity with written
information furnished to the Company by such Underwriter through Goldman, Sachs
& Co. expressly for use therein; and will reimburse the Company and such Selling
Stockholder for any legal or other expenses reasonably incurred by the Company
or such Selling Stockholder in connection with investigating or defending any
such action or claim as such expenses are incurred.

       (d) Promptly after receipt by an indemnified party under subsection (a),
(b) or (c) above of notice of the commencement of any action, such indemnified
party shall, if a claim in respect thereof is to be made against the
indemnifying party under such subsection, notify the indemnifying party in
writing of the commencement thereof; but the omission so to notify the
indemnifying party shall not relieve it from any liability which it may have to
any indemnified party otherwise than under such subsection. In case any such
action shall be brought against any indemnified party and it shall notify the
indemnifying party of the commencement thereof, the indemnifying party shall be
entitled to participate therein and, to the extent that it shall wish, jointly
with any other indemnifying party similarly notified, to assume the defense
thereof, with counsel satisfactory to such indemnified party (who shall not,
except with the consent of the indemnified party, be counsel to the indemnifying
party), and, after notice from the indemnifying party to such indemnified party
of its election so to assume the defense thereof, the indemnifying party shall
not be liable to such indemnified party under such subsection for any legal
expenses of other counsel or any other expenses, in each case subsequently
incurred by such indemnified party, in connection with the defense thereof other
than reasonable costs of investigation. No indemnifying party shall, without the
written consent of the indemnified party, effect the settlement or compromise
of, or consent to the entry of any judgment with respect to, any pending or
threatened action or claim in respect of which indemnification or contribution
may be sought hereunder (whether or not the indemnified party is an actual or
potential party to such action or claim) unless such settlement, compromise or
judgment (i) includes an unconditional release of the indemnified party from all
liability arising out of such action or claim and (ii) does not include a
statement as to or an admission of fault, culpability or a failure to act, by or
on behalf of any indemnified party.

       (e) If the indemnification provided for in this Section 8 is unavailable
to or insufficient to hold harmless an indemnified party under subsection (a),
(b) or (c) above in respect of any losses, claims, damages or liabilities (or
actions in respect thereof) referred to therein, then each indemnifying party
shall contribute to the amount paid or payable by such indemnified party as a
result of such losses, claims, damages or liabilities (or actions in respect
thereof) in such proportion as is appropriate to reflect the relative benefits
received by the Company and the Selling Stockholders on the one hand and the
Underwriters on the other from the offering of the Shares. If, however, the
allocation provided by the immediately preceding sentence is not permitted by
applicable law or if the indemnified party failed to give

                                       22
<PAGE>

the notice required under subsection (d) above, then each indemnifying party
shall contribute to such amount paid or payable by such indemnified party in
such proportion as is appropriate to reflect not only such relative benefits but
also the relative fault of the Company and the Selling Stockholders on the one
hand and the Underwriters on the other in connection with the statements or
omissions which resulted in such losses, claims, damages or liabilities (or
actions in respect thereof), as well as any other relevant equitable
considerations. The relative benefits received by the Company and the Selling
Stockholders on the one hand and the Underwriters on the other shall be deemed
to be in the same proportion as the total net proceeds from the offering (before
deducting expenses) received by the Company and the Selling Stockholders bear to
the total underwriting discounts and commissions received by the Underwriters,
in each case as set forth in the table on the cover page of the Prospectus. The
relative fault shall be determined by reference to, among other things, whether
the untrue or alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Company or the Selling Stockholders on the one hand or the Underwriters on the
other and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission, and the extent any
such party is prejudiced by the failure of an indemnified party to provide
notice as specified in Section 8(d) above. The Company, each of the Selling
Stockholders and the Underwriters agree that it would not be just and equitable
if contributions pursuant to this subsection (e) were determined by pro rata
allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation which does not take account of the
equitable considerations referred to above in this subsection (e). The amount
paid or payable by an indemnified party as a result of the losses, claims,
damages or liabilities (or actions in respect thereof) referred to above in this
subsection (e) shall be deemed to include any legal or other expenses reasonably
incurred by such indemnified party in connection with investigating or defending
any such action or claim. Notwithstanding the provisions of this subsection (e),
no Underwriter shall be required to contribute any amount in excess of the
amount by which the total price at which the Shares underwritten by it and
distributed to the public were offered to the public exceeds the amount of any
damages which such Underwriter has otherwise been required to pay by reason of
such untrue or alleged untrue statement or omission or alleged omission and each
of the Selling Stockholders shall not be required to contribute any amount in
excess of the aggregate net proceeds received by such Selling Stockholder
hereunder. No person guilty of fraudulent misrepresentation (within the meaning
of Section 11(f) of the Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation. The Underwriters'
obligations in this subsection (e) to contribute are several in proportion to
their respective underwriting obligations and not joint.

       (f) The obligations of the Company and the Selling Stockholders under
this Section 8 shall be in addition to any liability which the Company and the
respective Selling Stockholders may otherwise have and shall extend, upon the
same terms and conditions, to each person, if any, who controls any Underwriter
within the meaning of the Act; and the obligations of the Underwriters under
this Section 8 shall be in addition to any liability which the respective
Underwriters may otherwise have and shall extend, upon the same terms and
conditions, to each officer and director of the Company and any Selling

                                       23
<PAGE>

Stockholder and to each person, if any, who controls the Company or any Selling
Stockholder within the meaning of the Act.

9. (a) If any Underwriter shall default in its obligation to purchase the Shares
which it has agreed to purchase hereunder at a Time of Delivery, you may in your
discretion arrange for you or another party or other parties to purchase such
Shares on the terms contained herein. If within thirty-six hours after such
default by any Underwriter you do not arrange for the purchase of such Shares,
then the Company and the Selling Stockholders shall be entitled to a further
period of thirty-six hours within which to procure another party or other
parties satisfactory to you to purchase such Shares on such terms. In the event
that, within the respective prescribed periods, you notify the Company and the
Selling Stockholders that you have so arranged for the purchase of such Shares,
or the Company and the Selling Stockholders notify you that they have so
arranged for the purchase of such Shares, you or the Company and the Selling
Stockholders shall have the right to postpone a Time of Delivery for a period of
not more than seven days, in order to effect whatever changes may thereby be
made necessary in the Registration Statement or the Prospectus, or in any other
documents or arrangements, and the Company agrees to file promptly any
amendments to the Registration Statement or the Prospectus which in your opinion
may thereby be made necessary. The term "Underwriter" as used in this Agreement
shall include any person substituted under this Section with like effect as if
such person had originally been a party to this Agreement with respect to such
Shares.

       (b) If, after giving effect to any arrangements for the purchase of the
Shares of a defaulting Underwriter or Underwriters by you and the Company and
the Selling Stockholders as provided in subsection (a) above, the aggregate
number of such Shares which remains unpurchased does not exceed one-eleventh of
the aggregate number of all the Shares to be purchased at such Time of Delivery,
then the Company and the Selling Stockholders shall have the right to require
each non-defaulting Underwriter to purchase the number of Shares which such
Underwriter agreed to purchase hereunder at such Time of Delivery and, in
addition, to require each non-defaulting Underwriter to purchase its pro rata
share (based on the number of Shares which such Underwriter agreed to purchase
hereunder) of the Shares of such defaulting Underwriter or Underwriters for
which such arrangements have not been made; but nothing herein shall relieve a
defaulting Underwriter from liability for its default.

       (c) If, after giving effect to any arrangements for the purchase of the
Shares of a defaulting Underwriter or Underwriters by you and the Company and
the Selling Stockholders as provided in subsection (a) above, the aggregate
number of such Shares which remains unpurchased exceeds one-eleventh of the
aggregate number of all of the Shares to be purchased at such Time of Delivery,
or if the Company and the Selling Stockholders shall not exercise the right
described in subsection (b) above to require non-defaulting Underwriters to
purchase Shares of a defaulting Underwriter or Underwriters, then this Agreement
(or, with respect to the Second Time of Delivery, the obligations of the
Underwriters to purchase and of the Company to sell the Optional Shares) shall
thereupon terminate, without liability on the part of any non-defaulting
Underwriter or the Company or the Selling Stockholders, except for the expenses
to be borne by the Company and the Selling Stockholders and the Underwriters as
provided in

                                       24
<PAGE>

Section 6 hereof and the indemnity and contribution agreements in Section 8
hereof; but nothing herein shall relieve a defaulting Underwriter from liability
for its default.

10. The respective indemnities, agreements, representations, warranties and
other statements of the Company, the Selling Stockholders and the several
Underwriters, as set forth in this Agreement or made by or on behalf of them,
respectively, pursuant to this Agreement, shall remain in full force and effect,
regardless of any investigation (or any statement as to the results thereof)
made by or on behalf of any Underwriter or any controlling person of any
Underwriter, or the Company, or any of the Selling Stockholders, or any officer
or director or controlling person of the Company, or any controlling person of
any Selling Stockholder, and shall survive delivery of and payment for the
Shares.

11. If this Agreement shall be terminated pursuant to Section 9 hereof, neither
the Company nor the Selling Stockholders shall then be under any liability to
any Underwriter except as provided in Sections 6 and 8 hereof; but, if for any
other reason any Shares are not delivered by or on behalf of the Company and the
Selling Stockholders as provided herein, the Company and each of the Selling
Stockholders pro rata (based on the number of Shares to be sold by the Company
and such Selling Stockholder hereunder) will reimburse the Underwriters through
you for all reasonable out-of-pocket expenses approved in writing by you,
including fees and disbursements of counsel, reasonably incurred by the
Underwriters in making preparations for the purchase, sale and delivery of the
Shares not so delivered, but the Company and the Selling Stockholders shall then
be under no further liability to any Underwriter in respect of the Shares not so
delivered except as provided in Sections 6 and 8 hereof.

12. In all dealings hereunder, you shall act on behalf of each of the
Underwriters, and the parties hereto shall be entitled to act and rely upon any
statement, request, notice or agreement on behalf of any Underwriter made or
given by you jointly or by Goldman, Sachs & Co. on behalf of you as the
representatives; and in all dealings with any Selling Stockholder hereunder, you
and the Company shall be entitled to act and rely upon any statement, request,
notice or agreement on behalf of such Selling Stockholder made or given by any
or all Attorneys-in-Fact for such Selling Stockholder.

    All statements, requests, notices and agreements hereunder shall be in
writing, and if to the Underwriters shall be delivered or sent by mail, telex or
facsimile transmission to you as the representatives in care of Goldman, Sachs &
Co., 32 Old Slip, 21/st/ Floor, New York, New York 10005, Attention:
Registration Department; if to any Selling Stockholder shall be delivered or
sent by mail, telex or facsimile transmission to the Attorneys-in-Fact; and if
to the Company shall be delivered or sent by mail to the address of the Company
set forth in the Registration Statement, Attention: Secretary; provided,
however, that any notice to an Underwriter pursuant to Section 8(d) hereof shall
be delivered or sent by mail, telex or facsimile transmission to such
Underwriter at its address set forth in its Underwriters' Questionnaire, or
telex constituting such Questionnaire, which address will be supplied to the
Company or the Selling Stockholders by you upon request. Any such statements,
requests, notices or agreements shall take effect upon receipt thereof.

                                       25
<PAGE>

13. This Agreement shall be binding upon, and inure solely to the benefit of,
the Underwriters, the Company and the Selling Stockholders and, to the extent
provided in Sections 8 and 10 hereof, the officers and directors of the Company
and each person who controls the Company, any Selling Stockholder or any
Underwriter, and their respective heirs, executors, administrators, successors
and assigns, and no other person shall acquire or have any right under or by
virtue of this Agreement. No purchaser of any of the Shares from any Underwriter
shall be deemed a successor or assign by reason merely of such purchase.

14. Time shall be of the essence of this Agreement. As used herein, the term
"business day" shall mean any day when the Commission's office in Washington,
D.C. is open for business.

15. This Agreement shall be governed by and construed in accordance with the
laws of the State of New York.

16. This Agreement may be executed by any one or more of the parties hereto in
any number of counterparts, each of which shall be deemed to be an original, but
all such counterparts shall together constitute one and the same instrument.

                                       26
<PAGE>

    If the foregoing is in accordance with your understanding, please sign and
return to us one counterpart hereof for the Company and each of the
representatives plus one for each counsel and the Custodian, and upon the
acceptance hereof by you, on behalf of each of the Underwriters, this letter and
such acceptance hereof shall constitute a binding agreement among each of the
Underwriters, the Company and each of the Selling Stockholders. It is understood
that your acceptance of this letter on behalf of each of the Underwriters is
pursuant to the authority set forth in a form of Agreement among Underwriters,
the form of which shall be submitted to the Company and the Selling Stockholders
for examination, upon request, but without warranty on your part as to the
authority of the signers thereof.

    Any person executing and delivering this Agreement as Attorney-in-Fact for a
Selling Stockholder represents by so doing that he has been duly appointed as
Attorney-in-Fact by such Selling Stockholder pursuant to a validly existing and
binding Power-of-Attorney which authorizes such Attorney-in-Fact to take such
action.

                                    Very truly yours,

                                    Portal Software, Inc.

                                    By: ______________________________
                                    Name:
                                    Title:

                                    [Names of Selling Stockholders]

                                    By: ______________________________
                                    Name:
                                    Title:
                                    As Attorney-in-Fact acting on behalf of each
                                    of the Selling Stockholders named in
                                    Schedule II to this Agreement
Accepted as of the date hereof:
Goldman, Sachs & Co.
BancBoston Robertson Stephens Inc.
Credit Suisse First Boston Corporation
Donaldson, Lufkin & Jenrette Securities Corporation
Hambrecht & Quist LLC

By: ____________________________________________
    (Goldman, Sachs & Co.)

    On behalf of each of the Underwriters

                                       27
<PAGE>

 SCHEDULE I
------------
<TABLE>
<CAPTION>


                                                              Number of Optional
                                                                 Shares to be
                                         Total Number of         Purchased if
                                           Firm Shares          Maximum Option
   Underwriter                           to be Purchased          Exercised
   -----------                           ---------------          ---------
<S>                                      <C>                      <C>
Goldman, Sachs & Co.
BancBoston Robertson Stephens Inc.
Credit Suisse First Boston Corporation
Donaldson, Lufkin & Jenrette Securities
           Corporation
Hambrecht & Quist LLC

Total
</TABLE>

                                       28
<PAGE>

                                  SCHEDULE II
<TABLE>
<CAPTION>
                                                             Number of Optional
                                           Total Number         Shares to be
                                                of                Sold if
                                            Firm Shares        Maximum Option
                                             to be Sold          Exercised
                                           -------------     ------------------
<S>                                        <C>               <C>
The Company..............................
   The Selling Stockholder(s)............
       [Name of Selling Stockholder](a)..
       [Name of Selling Stockholder](b)..
       [Name of Selling Stockholder](c)..
       [Name of Selling Stockholder](d)..
       [Name of Selling Stockholder](e)..  -------------     ------------------
   Total.................................  =============     ==================
</TABLE>

__________
(a) This Selling Stockholder is represented by [Name and Address of Counsel]
and has appointed [Names of Attorneys-in-fact (not less than two)], and each of
them, as the Attorney's-in-Fact for such Selling Stockholder.

(b) This Selling Stockholder is represented by [Name and Address of Counsel] and
has appointed [Names of Attorneys-in-fact (not less than two)], and each of
them, as the Attorney's-in-Fact for such Selling Stockholder.

(c) This Selling Stockholder is represented by [Name and Address of Counsel] and
has appointed [Names of Attorneys-in-fact (not less than two)], and each of
them, as the Attorney's-in-Fact for such Selling Stockholder.

(d) This Selling Stockholder is represented by [Name and Address of Counsel] and
has appointed [Names of Attorneys-in-fact (not less than two)], and each of
them, as the Attorney's-in-Fact for such Selling Stockholder.

(e) This Selling Stockholder is represented by [Name and Address of Counsel] and
has appointed [Names of Attorneys-in-fact (not less than two)], and each of
them, as the Attorney's-in-Fact for such Selling Stockholder.

                                       29
<PAGE>

                                  SCHEDULE III


                        Non-primary Selling Stockholders

                                       30
<PAGE>

                                    Annex I


Pursuant to Section 7(e) of the Underwriting Agreement, the accountants shall
furnish letters to the Underwriters to the effect that:

       (i) They are independent certified public accountants with respect to the
       Company and its subsidiaries within the meaning of the Act and the
       applicable published rules and regulations thereunder;

       (ii) In their opinion, the financial statements and any supplementary
       financial information and schedules (and, if applicable, financial
       forecasts and/or pro forma financial information) examined by them and
       included in the Prospectus or the Registration Statement comply as to
       form in all material respects with the applicable accounting requirements
       of the Act and the related published rules and regulations thereunder;
       and, if applicable, they have made a review in accordance with standards
       established by the American Institute of Certified Public Accountants of
       the unaudited consolidated interim financial statements, selected
       financial data, pro forma financial information, financial forecasts
       and/or condensed financial statements derived from audited financial
       statements of the Company for the periods specified in such letter, as
       indicated in their reports thereon, copies of which have been separately
       furnished to the representatives of the Underwriters (the
       "Representatives") and are attached hereto;

       (iii) They have made a review in accordance with standards established by
       the American Institute of Certified Public Accountants of the unaudited
       consolidated statements of operations data included in the Prospectus as
       indicated in their reports thereon copies of which have been separately
       furnished to the Representatives and are attached hereto and on the basis
       of specified procedures including inquiries of officials of the Company
       who have responsibility for financial and accounting matters regarding
       whether the unaudited consolidated statements of operations data referred
       to in paragraph (vi)(A)(i) below comply as to form in all material
       respects with the applicable accounting requirements of the Act and the
       related published rules and regulations, nothing came to their attention
       that cause them to believe that the unaudited consolidated statements of
       operations data do not comply as to form in all material respects with
       the applicable accounting requirements of the Act and the related
       published rules and regulations;

       (iv) The unaudited selected financial information with respect to the
       consolidated results of operations and financial position of the Company
       for the four most recent fiscal years included in the Prospectus agrees
       with the corresponding amounts (after restatements where applicable)

                                       i
<PAGE>

       in the audited consolidated financial statements for such four fiscal
       years which were included or not included in the Prospectus;

       (v) They have compared the information in the Prospectus under selected
       captions with the disclosure requirements of Regulation S-K and on the
       basis of limited procedures specified in such letter nothing came to
       their attention as a result of the foregoing procedures that caused them
       to believe that this information does not conform in all material
       respects with the disclosure requirements of Items 301, 302, 402 and
       503(d), respectively, of Regulation S-K;

       (vi) On the basis of limited procedures, not constituting an examination
       in accordance with generally accepted auditing standards, consisting of a
       reading of the unaudited financial statements and other information
       referred to below, a reading of the latest available interim financial
       statements of the Company and its subsidiaries, inspection of the minute
       books of the Company and its subsidiaries since the date of the latest
       audited financial statements included in the Prospectus, inquiries of
       officials of the Company and its subsidiaries responsible for financial
       and accounting matters and such other inquiries and procedures as may be
       specified in such letter, nothing came to their attention that caused
       them to believe that:

            (A) (i) the unaudited consolidated statements of operations and
            consolidated balance sheets included in the Prospectus do not comply
            as to form in all material respects with the applicable accounting
            requirements of the Act and the related published rules and
            regulations, or (ii) any material modifications should be made to
            the unaudited consolidated statements of operations and consolidated
            balance sheets included in the Prospectus if any for them to be in
            conformity with generally accepted accounting principles;

            (B) any other unaudited statements of operations data and balance
            sheet items included in the Prospectus if any do not agree with the
            corresponding items in the unaudited consolidated financial
            statements from which such data and items were derived, and any such
            unaudited data and items were not determined on a basis
            substantially consistent with the basis for the corresponding
            amounts in the audited consolidated financial statements included in
            the Prospectus;

            (C) the unaudited financial statements which were not included in
            the Prospectus but from which were derived any unaudited condensed
            financial statements referred to in Clause (A) and any unaudited
            statements of operations data and balance sheet items included in
            the Prospectus and referred to in Clause (B) were not determined on
            a basis

                                       ii
<PAGE>

            substantially consistent with the basis for the audited consolidated
            financial statements included in the Prospectus;

            (D) any unaudited pro forma consolidated financial statement data
            included in the Prospectus do not comply as to form in all material
            respects with the applicable accounting requirements of the Act and
            the published rules and regulations thereunder or the pro forma
            adjustments have not been properly applied to the historical amounts
            in the compilation of those statements;

            (E) as of a specified date not more than five days prior to the date
            of such letter, there have been any changes in the consolidated
            capital stock (other than issuances of capital stock upon exercise
            of options and stock appreciation rights, upon earn-outs of
            performance shares and upon conversions of convertible securities,
            in each case which were outstanding on the date of the latest
            financial statements included in the Prospectus) or any increase in
            the consolidated long-term debt of the Company and its subsidiaries,
            or any decreases in consolidated net current assets or stockholders'
            equity or other items specified by the Representatives, or any
            increases in any items specified by the Representatives, in each
            case as compared with amounts shown in the latest balance sheet
            included in the Prospectus, except in each case for changes,
            increases or decreases which the Prospectus discloses have occurred
            or may occur or which are described in such letter;

            (F) for the period from the date of the latest financial statements
            included in the Prospectus to the specified date referred to in
            clause (E), there were any decreases in net current assets,
            stockholders' equity or consolidated net income or other items
            specified by the Representatives, or any increases in any items
            specified by the Representatives, in each case as compared with the
            comparable period of the preceding year and with any other period of
            corresponding length specified by the Representatives, except in
            each case for decreases or increases which the Prospectus discloses
            have occurred or may occur or which are described in such letter;
            and

            (G) for the period from Feb 1, 1999 to July 31, 1999, there were any
            decreases in consolidated net revenues as compared with the previous
            quarterly period and with the comparable period of the preceding
            year and with any other period of corresponding length specified by
            the Representatives, except in each case for decreases or increases
            which the Prospectus discloses have occurred or may occur or which
            are described in such letter; and

                                       iii
<PAGE>

       (vii) In addition to the examination referred to in their report(s)
       included in the Prospectus and the limited procedures, inspection of
       minute books, inquiries and other procedures referred to in paragraphs
       (iii) and (vi) above, they have carried out certain specified procedures,
       not constituting an examination in accordance with generally accepted
       auditing standards, with respect to certain amounts, percentages and
       financial information specified by the Representatives, which are derived
       from the general accounting records of the Company and its subsidiaries,
       which appear in the Prospectus, or in Part II of, or in exhibits and
       schedules to, the Registration Statement specified by the
       Representatives, and have compared certain of such amounts, percentages
       and financial information with the accounting records of the Company and
       its subsidiaries and have found them to be in agreement.

                                       iv