TALARIAN CORP
S-1/A, EX-1.01, 2000-07-19
PREPACKAGED SOFTWARE
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                                                                    EXHIBIT 1.01

                                    4,000,000

                              TALARIAN CORPORATION

                    COMMON STOCK, PAR VALUE $0.001 PER SHARE

                             UNDERWRITING AGREEMENT

                                                                   July __, 2000


LeHMAN BROTHERS INC.
SG COWEN SECURITIES CORP.
WIT SOUNDVIEW CORPORATION
FIDELITY CAPITAL MARKETS, A division of
  National Financial Services Corporation

As Representatives of the several
  Underwriters named in Schedule 1,
c/o Lehman Brothers Inc.
Three World Financial Center
New York, New York 10285

Dear Sirs:

        Talarian Corporation, a Delaware corporation (including its predecessor
in interest, Talarian Corporation, a California corporation, the "Company"),
proposes to sell 4,000,000 shares (the "Firm Stock") of the Company's common
stock, par value $0.001 per share (the "Common Stock"). In addition, the Company
proposes to grant to the Underwriters named in Schedule 1 hereto (the
"Underwriters") an option to purchase up to an additional 600,000 shares of the
Common Stock on the terms and for the purposes set forth in Section 2(the
"Option Stock"). The Firm Stock and the Option Stock, if purchased, are
hereinafter collectively called the "Stock." This is to confirm the agreement
concerning the purchase of the Stock from the Company by the Underwriters.



        1. Representations, Warranties and Agreements of the Company. The
Company represents, warrants and agrees that:

             (a) A registration statement on Form S-1 and amendments thereto
        with respect to the Stock have (i) been prepared by the Company in
        conformity with the requirements of the Securities Act of 1933 (the
        "Securities Act") and the rules and regulations (the "Rules and
        Regulations") of the Securities and Exchange Commission (the
        "Commission") thereunder, (ii) been filed with the Commission under the
        Securities Act and (iii) become effective under the Securities Act; and
        a



                                      -1-
<PAGE>   2

        second registration statement on Form S-1 with respect to the Stock (i)
        may also be prepared by the Company in conformity with the requirements
        of the Securities Act and the Rules and Regulations and (ii) if so
        prepared, will be filed with the Commission under the Securities Act
        pursuant to Rule 462(b) of the Rules and Regulations on the date hereof.
        Copies of the first such registration statement and the amendments to
        such registration statement, together with the form of any such second
        registration statement, have been delivered by the Company to you as the
        representatives (the "Representatives") of the Underwriters. As used in
        this Agreement, "Effective Time" means (i) with respect to the first
        such registration statement, the date and the time as of which such
        registration statement, or the most recent post-effective amendment
        thereto, if any, was declared effective by the Commission and (ii) with
        respect to any second registration statement, the date and time as of
        which such second registration statement is filed with the Commission,
        and "Effective Times" is the collective reference to both Effective
        Times; "Effective Date" means (i) with respect to the first such
        registration statement, the date of the Effective Time of such
        registration statement and (ii) with respect to any second registration
        statement, the date of the Effective Time of such second registration
        statement, and "Effective Dates" is the collective reference to both
        Effective Dates; "Preliminary Prospectus" means each prospectus included
        in any such registration statement, or amendments thereof, before it
        became effective under the Securities Act and any prospectus filed with
        the Commission by the Company with the consent of the Representatives
        pursuant to Rule 424(a) of the Rules and Regulations; "Primary
        Registration Statement" means the first registration statement referred
        to in this Section 1(a), as amended at its Effective Time, "Rule 462(b)
        Registration Statement" means the second registration statement, if any,
        referred to in this Section 1(a), as filed with the Commission, and
        "Registration Statements" means both the Primary Registration Statement
        and any Rule 462(b) Registration Statement, including in each case all
        information contained in the final prospectus filed with the Commission
        pursuant to Rule 424(b) of the Rules and Regulations in accordance with
        Section 5(a) hereof and deemed to be a part of the Registration
        Statements as of the Effective Time of the Primary Registration
        Statement pursuant to paragraph (b) of Rule 430A of the Rules and
        Regulations; and "Prospectus" means such final prospectus, as first
        filed with the Commission pursuant to paragraph (1) or (4) of Rule
        424(b) of the Rules and Regulations. The Commission has not issued any
        order preventing or suspending the use of any Preliminary Prospectus.

             (b) The Primary Registration Statement conforms (and the Rule
        462(b) Registration Statement, if any, the Prospectus and any further
        amendments or supplements to the Registration Statements or 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 Securities Act and the Rules and Regulations and do
        not and will not, as of the applicable Effective Date (as to the
        Registration Statements and any amendment thereto) and as of the
        applicable filing date (as to the Prospectus and any amendment or
        supplement thereto) contain any untrue statement of a material fact or
        omit to state any material fact


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        required to be stated therein or necessary to make the statements
        therein not misleading; provided that no representation or warranty is
        made as to information contained in or omitted from the Registration
        Statements or the Prospectus in reliance upon and in conformity with
        written information furnished to the Company through the Representatives
        by or on behalf of any Underwriter specifically for inclusion therein.

             (c) The Company and each of its subsidiaries (as defined in Section
        16) have been duly incorporated and are validly existing as corporations
        in good standing under the laws of their respective jurisdictions of
        incorporation, are duly qualified to do business and are in good
        standing as foreign corporations in each jurisdiction in which their
        respective ownership or lease of property or the conduct of their
        respective businesses requires such qualification, except where the
        failure to be so qualified would not have a material adverse effect on
        the business, financial condition or results of operations of the
        Company and its subsidiaries taken as a whole, and have all power and
        authority necessary to own or hold their respective properties and to
        conduct the businesses in which they are engaged; and the Company's
        subsidiary is not a "significant subsidiary", as such term is defined in
        Rule 405 of the Rules and Regulations. The subsidiary of the Company
        listed in Exhibit 21 to the Registration Statement constitutes the only
        subsidiary of the Company required to be listed therein.

             (d) The Company had on the stated date an authorized and
        outstanding actual and pro forma capitalization as set forth under the
        caption "Capitalization" in the Prospectus and, following the offering,
        will have an authorized and outstanding pro forma as adjusted
        capitalization as set forth under the caption "Capitalization" in the
        Prospectus; and all of the issued shares of capital stock of the Company
        were on the stated date set forth under the caption "Capitalization" in
        the Prospectus and are as of the date hereof duly and validly authorized
        and issued, fully paid and non-assessable, and conform in all material
        respects to the description thereof 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 and 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.

             (e) The shares of the Stock 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, fully paid and non-assessable; and the
        Stock will conform in all material respects to the descriptions thereof
        contained in the Prospectus; except as described in the Prospectus,
        there are no outstanding securities convertible into or exchangeable
        for, or warrants, rights or options to purchase from the Company and its
        subsidiaries, or obligations of the Company and its subsidiaries to
        issue, any class of capital stock of the Company or any of its
        subsidiaries; and except as described in the Prospectus, there are no
        restrictions on transfer or voting of any


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        capital stock of the Company pursuant to the Company's Amended and
        Restated Certificate of Incorporation (the "Certificate of
        Incorporation") or any agreement to which the Company is a party or by
        which it may be bound or to which any of its property or assets may be
        subject.

             (f) The Company has full right, power and authority to enter into
        and perform this Agreement and to consummate the transactions
        contemplated hereby and this Agreement has been duly authorized,
        executed and delivered by the Company.

             (g) The execution, delivery and performance of this Agreement by
        the Company and the consummation of the transactions contemplated hereby
        and the migratory merger to Delaware described in the Prospectus (such
        actions are herein collectively called the "Merger") did not, do not and
        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
        properties or assets of the Company or any of its subsidiaries is
        subject, nor will such actions result in any violation of the provisions
        of the Certificate of Incorporation of the Company or the charter or
        by-laws or similar organizational documents of any of its subsidiaries
        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 or assets; and except for
        the registration of the Stock under the Securities Act and such
        consents, approvals, authorizations, registrations or qualifications as
        may be required under the Securities Exchange Act of 1934 (the "Exchange
        Act") and applicable state securities laws, or from the National
        Association of Securities Dealers (the "NASD") in connection with the
        purchase and distribution of the Stock by the Underwriters, no consent,
        approval, authorization or order of, or filing or registration with, any
        such court or governmental agency or governmental body is required for
        the execution, delivery and performance of this Agreement by the Company
        and the consummation of the transactions contemplated hereby and the
        Merger.

             (h) Each of the conditions to the closing of the transactions
        contemplated by (i) the Agreement and Plan of Merger, dated March 7,
        2000 (the "WhiteBarn Agreement"), between the Company and WhiteBarn,
        Inc., an Illinois corporation ("WhiteBarn") and (ii) the Asset Purchase
        Agreement, dated as of September 30, 1999 (the "GlobalCast Agreement"),
        between the Company and GlobalCast Communications, Inc., a California
        corporation ("GlobalCast") has been satisfied or waived, the respective
        closings under the WhiteBarn Agreement and the GlobalCast Agreement have
        been consummated in accordance with the respective terms of such
        agreements, and the merger of WhiteBarn with and into the Company
        pursuant to the WhiteBarn Agreement has been duly consummated in
        accordance with the laws of California and Illinois.


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             (i) Except as described in the Registration Statement, there are no
        contracts, agreements or understandings between the Company and any
        person granting such person the right (other than rights which have been
        waived or satisfied) to require the Company to file a registration
        statement under the Securities Act with respect to any securities of the
        Company owned or to be owned by such person or to require the Company to
        include such securities in the securities registered pursuant to the
        Registration Statements or in any securities being registered pursuant
        to any other registration statement filed by the Company under the
        Securities Act.

             (j) Except as described in the Registration Statement, the Company
        has not sold or issued any shares of Common Stock or securities
        convertible into or exchangeable for, shares of Common Stock during the
        six-month period preceding the date of the Prospectus, including any
        sales pursuant to Rule 144A under, or Regulations D or S of, the
        Securities Act.

             (k) Neither the Company nor any of its subsidiaries 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 such date, there has not been any change in the
        capital stock or long-term debt of the Company or any of its
        subsidiaries or any material adverse change, or any development
        involving 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, otherwise
        than as set forth or contemplated in the Prospectus.

             (l) The financial statements (including the related notes and
        supporting schedules) filed as part of the Registration Statements or
        included in the Prospectus present fairly the financial condition and
        results of operations of the Company, WhiteBarn and GlobalCast, at the
        dates and for the periods indicated, and have been prepared in
        conformity with generally accepted accounting principles ("GAAP")
        applied on a consistent basis throughout the periods involved. The
        summary consolidated financial data and selected consolidated financial
        data included in the Prospectus present fairly the financial information
        shown therein and have been accurately extracted or derived from the
        audited financial statements of the Company, WhiteBarn and GlobalCast.
        The pro forma consolidated financial information included in the
        Prospectus (i) is presented fairly in all material respects, (ii) has
        been prepared in accordance with the Rules and Regulations with respect
        to pro forma financial statements and (iii) has been properly compiled
        on the bases described therein, and the assumptions used in the
        preparation of the pro forma consolidated financial information included
        in the Prospectus are reasonable and the adjustments used therein are
        appropriate to give effect to the transactions or circumstances referred
        to therein.



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             (m) KPMG, LLP, which has certified certain financial statements of
        the Company, WhiteBarn and GlobalCast, the report of which appears in
        the Prospectus and which has delivered the initial letter referred to in
        Section 7(f) hereof, are independent public accountants as required by
        the Securities Act and the Rules and Regulations.

             (n) The Company and each of its subsidiaries do not own any real
        property and have good 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 all 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.

             (o) The Company and each of its subsidiaries carry, or are covered
        by, insurance in such amounts and covering such risks as is reasonably
        adequate for the conduct of their respective businesses and the value of
        their respective properties and as is customary for companies engaged in
        similar businesses in similar industries.

             (p) The Company and each of its subsidiaries hold all licenses,
        certificates and permits from governmental authorities which are
        necessary to the conduct of their businesses, except where the failure
        to have such licenses, certificates or permits, either singly or in the
        aggregate, would not have a material adverse effect on the business or
        financial condition of the Company.

             (q) Except as described in the Registration Statement, the Company
        and its subsidiaries each own or possess adequate rights to use all
        patents, patent rights, trademarks, trade names, service marks, service
        names, copyrights, licenses, license rights, technology, know-how
        (including trade secrets and other unpatented and unpatentable
        proprietary or confidential information, systems or procedures) and
        other intellectual property rights ("Intellectual Property") reasonably
        necessary to carry on the business of the Company and the subsidiaries
        and have no reason to believe that the conduct of their respective
        businesses will conflict with, and have not received notice of any claim
        of conflict with, any Intellectual Property rights of others or
        contractual obligations binding on the Company or any of its
        subsidiaries or any of its officers, directors or employees. There are
        no outstanding options, licenses or agreements of any kind relating to
        the Intellectual Property of the Company or any subsidiary that are
        required to be described in the Prospectus and are not described in


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<PAGE>   7

        all material respects. Neither the Company nor any of its subsidiaries
        is a party to or bound by any options, licenses or agreements with
        respect to the Intellectual Property of any other person or entity that
        are required to be set forth in the Prospectus and are not described in
        all material respects. Except as specifically disclosed in the
        Prospectus, the Company knows of no infringement by others of
        Intellectual Property owned by or licensed to the Company.

             (r) The Company and each of its subsidiaries are conducting
        business in compliance with all applicable laws, rules and regulations
        of the jurisdictions in which they are conducting business, except where
        failure to be so in compliance would not materially adversely affect the
        consolidated financial position, stockholders' equity, results of
        operations, business or prospects of the Company and its subsidiaries
        taken as a whole.

             (s) Neither the Company nor, to the Company's knowledge, any of its
        affiliates has taken or may take, directly or indirectly, any action
        designed to cause or result in, or which has constituted or which might
        reasonably be expected to constitute, the stabilization or manipulation
        of the price of the shares of Common Stock to facilitate the sale or
        resale of the shares of Common Stock. The Company acknowledges that the
        Underwriters may engage in passive market making transactions in the
        shares of Common Stock on the NASDAQ National Market System in
        accordance with Regulation M under the Exchange Act.

             (t) Except as described in the Prospectus, there are no legal or
        governmental proceedings pending to which the Company or any of its
        subsidiaries is a party or of which any property or asset of the Company
        or any of its subsidiaries is the subject which would reasonably be
        expected to have a material adverse effect on the consolidated financial
        position, stockholders' equity, results of operations, business or
        prospects of the Company and its subsidiaries; and to the best of the
        Company's knowledge, no such proceedings are threatened or contemplated
        by governmental authorities or threatened by others.

             (u) There are no contracts or other documents which are required to
        be described in the Prospectus or filed as exhibits to either of the
        Registration Statements by the Securities Act or by the Rules and
        Regulations which have not been described in the Prospectus or filed as
        exhibits to either of the Registration Statements as permitted by the
        Rules and Regulations.

             (v) No relationship, direct or indirect, exists between or among
        the Company on the one hand, and the directors, officers, stockholders,
        customers or suppliers of the Company on the other hand, which is
        required to be described in the Prospectus which is not so described.

             (w) No labor disturbance by the employees of the Company exists or,
        to the knowledge of the Company, is imminent which would reasonably be
        expected to have a material adverse effect on the consolidated financial
        position, stockholders' equity, results of operations, or business of
        the Company and its subsidiaries taken as a whole.



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             (x) The Company is in compliance in all material respects with all
        presently applicable provisions of the Employee Retirement Income
        Security Act of 1974, as amended, including the regulations and
        published interpretations thereunder ("ERISA"); no "reportable event"
        (as defined in ERISA) has occurred with respect to any "pension plan"
        (as defined in ERISA) for which the Company would have any material
        liability; the Company has not incurred and does not expect to incur
        liability under (i) Title IV of ERISA with respect to termination of, or
        withdrawal from, any "pension plan" or (ii) Sections 412 or 4971 of the
        Internal Revenue Code of 1986, as amended, including the regulations and
        published interpretations thereunder (the "Code"); and each "pension
        plan" for which the Company would have any liability that is intended to
        be qualified under Section 401(a) of the Code is so qualified in all
        material respects and, to the Company's knowledge, nothing has occurred,
        whether by action or by failure to act, which would reasonably be
        expected to cause the loss of such qualification.

             (y) Each of the Company and its subsidiaries has filed all federal,
        state and local income and franchise tax returns, reports and other
        information required to be filed through the date hereof and has paid
        all taxes due thereon, except where such tax is being contested in good
        faith, and no tax deficiency has been determined adversely to the
        Company or any of its subsidiaries which has had (nor does the Company
        have any knowledge of any tax deficiency which, if determined adversely
        to the Company or any of its subsidiaries, might have) a material
        adverse effect on the consolidated financial position, stockholders'
        equity, results of operations, business or prospects of the Company and
        its subsidiaries; and no tax deficiency has been determined adversely to
        the Company or any of its subsidiaries which has had (nor does the
        Company have any knowledge of any tax deficiency which, if determined
        adversely to the Company or any of its subsidiaries, could reasonably be
        expected to have) a material adverse effect on the consolidated
        financial position, stockholders' equity, results of operations,
        business or prospects of the Company and its subsidiaries taken as a
        whole.

             (z) Since the date as of which information is given in the
        Prospectus through the date hereof, and except as may otherwise be
        disclosed in the Prospectus, the Company has not (i) issued or granted
        any securities other than securities issued pursuant to options,
        warrants or convertible securities outstanding on the date as of which
        such information is given, (ii) incurred any liability or obligation,
        direct or contingent, other than liabilities and obligations which were
        incurred in the ordinary course of business, (iii) entered into any
        transaction not in the ordinary course of business or (iv) declared or
        paid any dividend on its capital stock.

             (aa) The Company (i) makes and keeps accurate books and records and
        (ii) maintains internal accounting controls which provide reasonable
        assurance that (A) transactions are executed in accordance with
        management's authorization, (B) transactions are recorded as necessary
        to permit preparation of its financial statements and to maintain
        accountability for its assets, (C) access to its assets is


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<PAGE>   9

        permitted only in accordance with management's authorization and the
        reported accountability for its assets is compared with existing assets
        at reasonable intervals.

             (bb) Neither the Company nor any of its subsidiaries, nor, to the
        knowledge of the Company, any director, officer, agent, employee or
        other person associated with or acting on behalf of the Company or any
        of its subsidiaries, has used any corporate funds for any unlawful
        contribution, gift, entertainment or other unlawful expense relating to
        political activity; made any direct or indirect unlawful payment to any
        foreign or domestic government official or employee from corporate
        funds; violated or is in violation of any provision of the United States
        Foreign Corrupt Practices Act of 1977; or made any bribe, rebate,
        payoff, influence payment, kickback or other unlawful payment.

             (cc) Neither the Company nor any of its subsidiaries (i) is in
        violation of its charter or by-laws or other similar governing
        documents, (ii) is in default in any material respect, and no event has
        occurred which, with notice or lapse of time or both, would constitute
        such a default, in the due performance or observance of any term,
        covenant or condition contained in any material indenture, mortgage,
        deed of trust, loan agreement or other agreement or instrument to which
        it is a party or by which it is bound or to which any of its properties
        or assets is subject or (iii) is in violation in any material respect of
        any law, ordinance, governmental rule, regulation or court decree to
        which it or its properties or assets is subject or has failed to obtain
        any material license, permit, certificate, franchise or other
        governmental authorization or permit necessary to the ownership of its
        properties or assets or to the conduct of its business, except, in the
        case of clause (ii) and (iii) such violation or default as does not,
        individually or in the aggregate, have a material adverse effect on the
        consolidated financial position, stockholders' equity, results of
        operations, business or prospects of the Company and its subsidiaries
        taken as a whole.

             (dd) Neither the Company nor any subsidiary is an "investment
        company" within the meaning of such term under the Investment Company
        Act of 1940 and the rules and regulations of the Commission thereunder.

             (ee) Neither the Company nor any of its subsidiaries has (i)
        violated any material environmental statute, rule, regulation, order,
        judgment, decree or permit in any jurisdiction in which the Company or
        such subsidiary conducts any business or owns or holds any properties or
        assets or (ii) received actual notice of any actual or potential
        liability for the investigation or remediation of any disposal or
        release of hazardous or toxic substance or wastes, pollutants or
        contaminants, except where such violation or liability could not
        reasonably be expected to have a material adverse effect on the
        consolidated financial position, stockholders' equity, results of
        operations, business or prospects of the Company and its subsidiaries
        taken as a whole.



                                      -9-
<PAGE>   10

             (ff) The Company has reviewed its operations and that of its
        subsidiaries to evaluate the extent to which the business or operations
        or products of the Company or its subsidiaries have been or will be
        affected by the Year 2000 Problem. As a result of such review, the
        Company has no reason to believe, and does not believe, that the Year
        2000 problem has had or will have a material adverse effect on the
        financial position, shareholders' equity or results of operations of the
        Company and its subsidiaries taken as a whole or result in any material
        loss or interference with the Company's business or operations. The
        "Year 2000 Problem" as used herein means any significant risk that
        computer hardware or software used in the receipt, transmission,
        processing, manipulation, storage, retrieval, retransmission or other
        utilization of data or in the operation of mechanical or electrical
        systems of any kind will not, in the case of dates or time periods
        occurring after December 31, 1999, function at least as effectively as
        in the case of dates or time periods occurring prior to January 1, 2000.

             (gg) There are no material acquisitions of businesses or assets by
        the Company or any of its subsidiaries pending, contemplated or
        currently being negotiated.

             (hh) None of the Company, any subsidiary of the Company or any
        director or officer of the Company or of any subsidiary of the Company
        is (i) a director, officer, or partner of any brokerage firm, broker or
        dealer that is a member of the NASD; and each such member, an "NASD
        member") or (ii) directly or indirectly, a "person associated with" a
        NASD member or an "affiliate" of a NASD member, as such terms are used
        in the NASD by-laws or rules.

             (ii) There are no outstanding loans, advances (except normal
        advances for business expenses in the ordinary course of business) or
        guarantees of indebtedness by the Company or any of its subsidiaries to
        or for the benefit of any of the officers or directors of the Company or
        any of the members of any of them, except as disclosed in the
        Prospectus.

             (jj) The shares of Common Stock have been approved for quotation on
        the NASDAQ National Market System, subject to official notice of
        issuance.

             (kk) The Company has not distributed and will not distribute prior
        to the later of (i) the Delivery Date, or any date on which shares of
        Option Stock are to be purchased, as the case may be, and (ii)
        completion of the distribution of the Shares, any offering material in
        connection with the offering and sale of the Shares other than any
        preliminary prospectuses, the Prospectus, the Registration Statement and
        other materials, if any, permitted by the Act.

             (ll) All offers and sales of the securities of the Company by the
        Company prior to the offer and sale of the Stock were made in compliance
        with the Securities Act and all other applicable state and federal laws
        or regulations.



                                      -10-
<PAGE>   11

        2. Purchase of the Shares of Common Stock by the Underwriters. On the
basis of the representations and warranties contained in, and subject to the
terms and conditions of, this Agreement, the Company agrees to sell 4,000,000
shares of the Firm Stock to the several Underwriters, and each of the
Underwriters, severally and not jointly, agrees to purchase the number of shares
of the Firm Stock set opposite that Underwriter's name in Schedule 1 hereto.

        In addition, the Company grants to the Underwriters an option to
purchase up to 600,000 shares of Option Stock. Such option is granted solely for
the purpose of covering over-allotments in the sale of Firm Stock and is
exercisable as provided in Section 4 hereof. Shares of Option Stock shall be
purchased severally for the account of the Underwriters in proportion to the
number of shares of Firm Stock set opposite the names of such Underwriters in
Schedule 1 hereto. The respective purchase obligations of each Underwriter with
respect to the Option Stock shall be adjusted by the Representatives so that no
Underwriter shall be obligated to purchase Option Stock other than in 100 share
amounts.

        The price of both the Firm Stock and any Option Stock shall be $_____
per share.

        The Company shall not be obligated to deliver any of the Stock to be
delivered on the First Delivery Date or the Second Delivery Date (as hereinafter
defined), as the case may be, except upon payment for all the Stock to be
purchased on such Delivery Date as provided herein.

        3. Offering of Shares by the Underwriters.

        Upon authorization by the Representatives of the release of the Firm
Stock, the several Underwriters propose to offer the Firm Stock for sale upon
the terms and conditions set forth in the Prospectus; provided, however, that no
Stock registered pursuant to the Rule 462(b) Registration Statement, if any,
shall be offered prior to the Effective Time thereof.

        4. Delivery of and Payment for the Shares. Delivery of and payment for
the Firm Stock shall be made in New York, New York with a concurrent closing at
the offices of Simpson Thacher & Bartlett at 3373 Hillview, Suite 250, Palo
Alto, California at 10:00 A.M., New York time, on [________], 2000, the fourth
full business day following the date of this Agreement, or at such other date or
place as shall be determined by agreement between the Representatives and the
Company. This date and time are sometimes referred to as the "First Delivery
Date." On the First Delivery Date, the Company shall deliver or cause to be
delivered certificates representing the Firm Stock to the Representatives for
the account of each Underwriter against payment to or upon the order of the
Company of the purchase price by wire or certified or official bank check or
checks payable in immediately available funds. Time shall be of the essence, and
delivery at the time and place specified pursuant to this Agreement is a further
condition of the obligation of each Underwriter hereunder. Upon delivery, the
Firm Stock shall be registered in such names and in such denominations as the
Representatives shall request in writing not less than two full business days
prior to the First Delivery Date. For the purpose of expediting the checking and
packaging of the certificates for the Firm Stock, the Company shall make the
certificates representing the Firm Stock available for inspection by the
Representatives in New York, New York, not later than 2:00 P.M., New York time,
on the business day prior to the First Delivery Date.


                                      -11-
<PAGE>   12

        At any time on or before the thirtieth day after the date of this
Agreement the option granted in Section 2 may be exercised by written notice
being given to the Company by the Representatives. Such notice shall set forth
the aggregate number of shares of Option Stock as to which the option is being
exercised, the names in which the shares of Option Stock are to be registered,
the denominations in which the shares of Option Stock are to be issued and the
date and time, as determined by the Representatives, when the shares of Option
Stock are to be delivered; provided, however, that this date and time shall not
be earlier than the First Delivery Date nor earlier than the second business day
after the date on which the option shall have been exercised nor later than the
fifth business day after the date on which the option shall have been exercised.
The date and time the shares of Option Stock are delivered are sometimes
referred to as the "Second Delivery Date" and the First Delivery Date and the
Second Delivery Date are sometimes each referred to as a "Delivery Date").

        Delivery of and payment for the Option Stock shall be made at the place
specified in the first sentence of the first paragraph of this Section 4 (or at
such other place as shall be determined by agreement between the Representatives
and the Company) at 10:00 A.M., New York time, on the Second Delivery Date. On
the Second Delivery Date, the Company shall deliver or cause to be delivered the
certificates representing the Option Stock to the Representatives for the
account of each Underwriter against payment to or upon the order of the Company
of the purchase price by wire or certified or official bank check or checks
payable in immediately available funds. Time shall be of the essence, and
delivery at the time and place specified pursuant to this Agreement is a further
condition of the obligation of each Underwriter hereunder. Upon delivery, the
Option Stock shall be registered in such names and in such denominations as the
Representatives shall request in the aforesaid written notice. For the purpose
of expediting the checking and packaging of the certificates for the Option
Stock, the Company shall make the certificates representing the Option Stock
available for inspection by the Representatives in New York, New York, not later
than 2:00 P.M., New York time, on the business day prior to the Second Delivery
Date.

        5. Further Agreements of the Company. The Company agrees:

             (a) To prepare the Rule 462(b) Registration Statement, if
        necessary, in a form approved by the Representatives and to file such
        Rule 462(b) Registration Statement with the Commission on the date
        hereof; to prepare the Prospectus in a form approved by the
        Representatives and to file such Prospectus pursuant to Rule 424(b)
        under the Securities Act not later than 10:00 A.M., New York time, on
        the day following the execution and delivery of this Agreement; to make
        no further amendment or any supplement to the Registration Statements or
        to the Prospectus except as permitted herein; to advise the
        Representatives, promptly after it receives notice thereof, of the time
        when any amendment to either Registration Statement has been filed or
        becomes effective or any supplement to the Prospectus or any amended
        Prospectus has been filed and to furnish the Representatives with copies
        thereof; to advise the Representatives, 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 the Prospectus, of the suspension of the qualification of
        the Stock for offering or


                                      -12-
<PAGE>   13

        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 Statements or the
        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 the Prospectus or suspending any
        such qualification, to use promptly its best efforts to obtain its
        withdrawal;

             (b) To furnish promptly to each of the Representatives a conformed
        copy and to counsel for the Underwriters a signed copy of each of the
        Registration Statements as originally filed with the Commission, and
        each amendment thereto filed with the Commission, including all consents
        and exhibits filed therewith;

             (c) To deliver promptly to the Representatives in New York City
        such number of the following documents as the Representatives shall
        reasonably request: (i) conformed copies of the Registration Statements
        as originally filed with the Commission and each amendment thereto (in
        each case excluding exhibits other than this Agreement and (ii) each
        Preliminary Prospectus, the Prospectus (not later than 6:00 P.M., New
        York time, of the day following the execution and delivery of this
        Agreement) and any amended or supplemented Prospectus (not later than
        6:00 P.M., New York time, on the day following the date of such
        amendment or supplement); and, if the delivery of a prospectus is
        required at any time prior to the expiration of nine months after the
        Effective Time of the Primary Registration Statement in connection with
        the offering or sale of the Stock (or any other securities relating
        thereto) and if at such time any event shall have occurred as a result
        of which the Prospectus as then amended or supplemented would include
        any 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 same period to amend or supplement the Prospectus
        in order to comply with the Securities Act, to notify the
        Representatives and, upon their request, to prepare and furnish without
        charge to each Underwriter and to any dealer in securities as many
        copies as the Representatives may from time to time reasonably request
        of an amended or supplemented 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 Effective
        Time of the Primary Registration Statement, upon the request of the
        Representatives but at the expense of such Underwriter, to prepare and
        deliver to such Underwriter as many copies as the Representatives may
        from time to time reasonably request of an amended or supplemented
        Prospectus complying with Section 10(a)(3) of the Securities Act;

             (d) To file promptly with the Commission any amendment to the
        Registration Statements or the Prospectus or any supplement to the
        Prospectus


                                      -13-
<PAGE>   14

        that may, in the reasonable judgment of the Company or the
        Representatives, be required by the Securities Act or requested by the
        Commission;

             (e) Prior to filing with the Commission (i) any amendment to either
        of the Registration Statements or any supplement to the Prospectus or
        (ii) any Prospectus pursuant to Rule 424 of the Rules and Regulations,
        to furnish a copy thereof to the Representatives and counsel for the
        Underwriters and obtain the consent of the Representatives to the
        filing;

             (f) As soon as practicable after the Effective Date of the Primary
        Registration Statement (it being understood that the Company shall have
        until at least 410 days after the end of the Company's current fiscal
        quarter), to make generally available to the Company's security holders
        and to deliver to the Representatives an earnings statement of the
        Company and its subsidiaries (which need not be audited) complying with
        Section 11(a) of the Securities Act and the Rules and Regulations
        (including, at the option of the Company, Rule 158);

             (g) For a period of five years following the Effective Date of the
        Primary Registration Statement, to furnish to the Representatives at
        their request copies of all materials furnished by the Company to its
        shareholders and all public reports and all reports and financial
        statements furnished by the Company to the principal national securities
        exchange or automatic quotation system upon which the Common Stock may
        be listed or quoted pursuant to requirements of or agreements with such
        exchange or system or to the Commission pursuant to the Exchange Act or
        any rule or regulation of the Commission thereunder;

             (h) Promptly from time to time to take such action as the
        Representatives may reasonably request to qualify the Stock for offering
        and sale under the securities laws of such domestic jurisdictions as the
        Representatives 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;

             (i) (i) For a period of 180 days from the date of the Prospectus,
        not to, directly or indirectly, (a) offer for sale, sell or contract to
        sell, pledge or otherwise dispose of, or announce an offering of (or
        enter into any transaction or device which is designed to, or could be
        expected to, result in the disposition or purchase by any person at any
        time in the future of) any shares of Common Stock or other equity
        securities of the Company or any securities convertible into or
        exchangeable for any shares of Common Stock or other equity securities,
        or sell or grant options, rights or warrants with respect to any shares
        of Common Stock or equity securities of the Company or any securities
        convertible into or exchangeable for any shares of Common Stock or other
        equity securities (other than (i) options or shares issued pursuant to
        the share option and stock purchase


                                      -14-
<PAGE>   15

        plans described in the Prospectus and (ii) shares issued pursuant to
        currently outstanding options, warrants or rights, in each case as in
        effect on the date hereof, provided that the recipient of shares
        pursuant to clause (i) or (ii) has executed a lock-up agreement referred
        to below or such options are not exercisable in whole or in part prior
        to the 180th day after the date of the Prospectus, (iii) upon prior
        written notice to Lehman Brothers, shares, not exceeding 20% of the
        outstanding Common Stock of the Company, issued in connection with
        acquisitions in which none of such shares are required to be registered
        under the Securities Act prior to the 180th day after the date of the
        prospectus, provided that each recipient of any such shares has executed
        with respect to such shares a lock-up agreement referred to below) or
        (b) enter into any swap or other derivatives transaction that transfers
        to another, in whole or in part, any of the economic benefits or risks
        of ownership of any shares of Common Stock or other equity securities,
        whether any such transaction described in clause (a) or (b) above is to
        be settled by delivery of shares of Common Stock or other equity
        securities in cash or otherwise, in each case without the prior written
        consent of Lehman Brothers on behalf of the Underwriters; (ii) to cause
        each director, executive officer, employee holding options or warrants
        and shareholder (except shareholders listed on Schedule 2 hereto) of the
        Company to furnish to the Representatives, prior to the First Delivery
        Date, a "lock-up" letter (each, a "Lock-up Letter"), substantially in
        the form of Exhibit A hereto; and (iii) to cause each shareholder listed
        on Schedule 2 hereto to comply with the "lock-up" provisions to which
        such shareholder is subject under its purchase or similar agreement with
        the Company, which the Company represents and warrants prohibits all
        such shareholders from selling any shares of capital stock of the
        Company owned by such shareholder on the First Delivery Date for the
        180-day "lock-up period" set forth in the Lockup-Letters; and not to
        permit any such shareholder to sell or transfer any shares of capital
        stock prior to the end of such 180-day lock-up period in each case
        without the consent of Lehman Brothers on behalf of the Underwriters,
        and, in connection therewith, shall instruct the Transfer Agent not to
        make any transfers of such stock for such period..

             (j) Prior to the Effective Date, to apply for the listing of the
        Shares on the Nasdaq National Market System and to use its best efforts
        to complete that listing, subject only to official notice of issuance
        and evidence of satisfactory distribution, prior to the First Delivery
        Date;

             (k) To apply the net proceeds from the sale of the Stock being sold
        by the Company as set forth in the Prospectus;

             (l) To take such steps as shall be necessary to ensure that neither
        the Company nor any subsidiary shall become an "investment company"
        within the meaning of such term under the Investment Company Act of 1940
        and the rules and regulations of the Commission thereunder;

                                      -15-
<PAGE>   16

             (m) Between the date hereof and the First Delivery Date (both dates
        inclusive), to notify and consult with the Representatives, and to cause
        its subsidiaries and all other parties acting on its or their behalf to
        notify and consult with the Representatives, prior to issuing any press
        release or other announcement which could be material in the context of
        the distribution of the Shares;

             (n) In connection with the Directed Share Program, to ensure that
        the Directed Shares shall be restricted to the extent required by the
        NASD or pursuant to the rules of the NASD from sale, transfer,
        assignment, pledge or hypothecation for a period of three months
        following the Effective Dates and also to direct the transfer agent to
        place stop transfer restrictions upon the Directed Shares for such
        period of time; and

             (o) To comply with all applicable laws and regulations in each
        non-U.S. jurisdiction in which the Directed Shares are offered or sold.

        6. Expenses. The Company agrees to pay the costs incident to the
authorization, issuance, sale and delivery of the Stock and any taxes payable in
that connection; the costs incident to the preparation, printing and filing
under the Securities Act of the Registration Statements and any amendments and
exhibits thereto; the costs of distributing the Registration Statements as
originally filed and each amendment thereto and any post-effective amendments
thereof (including, in each case, exhibits), any Preliminary Prospectus, the
Prospectus and any amendment or supplement to the Prospectus, all as provided in
this Agreement; the costs of reproducing and distributing this Agreement; the
costs, if any, of distributing the terms of agreement relating to the
organization of the underwriting syndicate and selling group to the members
thereof by mail, telex or other means of communication; the filing fees incident
to securing any required review by the National Association of Securities
Dealers, Inc. of the terms of sale of the Stock; any applicable listing or other
fees (including any fees incurred in listing the Stock on the NASDAQ National
Market System); the fees and expenses of qualifying the Stock under the
securities laws of the several jurisdictions as provided in Section 5(h) and of
preparing, printing and distributing a Blue Sky Memorandum (including related
reasonable fees and expenses of counsel to the Underwriters); all reasonable
costs and expenses of the Underwriters, including the fees and disbursements of
counsel for the Underwriters, incident to the offer and sale of shares of the
Stock by the Underwriters to officers, directors, employees and consultants of
the Company and their family members and to other persons having business
relationships with the Company and its subsidiaries, as described in Section 3 ;
and all other costs and expenses incident to the performance of the obligations
of the Company under this Agreement; provided that, except as provided in this
Section 6 and in Sections 8 and , the Underwriters shall pay their own costs and
expenses, including the costs and expenses of their counsel, any transfer taxes
on the Stock which they may sell and the expenses of advertising any offering of
the Stock made by the Underwriters.

        7. Conditions of Underwriters' Obligations. The respective obligations
of the Underwriters hereunder are subject to the accuracy, when made and on each
Delivery Date, of the representations and warranties of the Company contained
herein, to the performance by the



                                      -16-
<PAGE>   17

Company of its obligations hereunder, and to each of the following additional
terms and conditions:

             (a) The Rule 462(b) Registration Statement, if any, and the
        Prospectus shall have been timely filed with the Commission in
        accordance with Section 5(a); no stop order suspending the effectiveness
        of either of the Registration Statements or any part thereof shall have
        been issued and no proceeding for that purpose shall have been initiated
        or threatened by the Commission; and any request of the Commission for
        inclusion of additional information in either of the Registration
        Statements or the Prospectus or otherwise shall have been complied with.

             (b) No Underwriter shall have discovered and disclosed to the
        Company on or prior to such Delivery Date that either of the
        Registration Statements or the Prospectus or any amendment or supplement
        thereto contains any untrue statement of a fact which, in the reasonable
        opinion of Simpson Thacher & Bartlett, counsel for the Underwriters, is
        material or omits to state any fact which, in the reasonable opinion of
        such counsel, is material and is required to be stated therein or is
        necessary to made the statements therein not misleading.

             (c) All corporate proceedings and other legal matters incident to
        the authorization, form and validity of this Agreement, the Stock, the
        Registration Statements and the Prospectus, and all other legal matters
        relating to this Agreement and the transactions contemplated hereby and
        the Merger shall be reasonably satisfactory in all material respects to
        counsel for the Underwriters, and the Company shall have furnished to
        such counsel all documents and information that they may reasonably
        request to enable them to pass upon such matters.

             (d) Fenwick & West LLP shall have furnished to the Representatives
        its written opinion, as counsel to the Company, addressed to the
        Underwriters and dated such Delivery Date, in form and substance
        reasonably satisfactory to the Representatives, substantially 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
             Delaware, is duly qualified to do business and is in good standing
             as a foreign corporation in each jurisdiction in which its
             ownership or lease of property or the conduct of its business
             requires such qualification, except where the failure to be so
             qualified would not have a material adverse effect on its business,
             financial condition or results of operations, and has all corporate
             power and corporate authority necessary to own or hold its
             properties and conduct the business described in the Prospectus;

                    (ii) The Company had on the stated date an authorized actual
             capitalization as set forth under the caption "Capitalization" in
             the Prospectus and immediately following the Offering will have the
             pro


                                      -17-
<PAGE>   18

             forma and pro forma as adjusted authorized capitalization as set
             forth in under the caption "Capitalization" in the Prospectus; and
             all of the issued and outstanding shares of capital stock of the
             Company were on the stated date set forth under the caption
             "Capitalization" in the Prospectus and are as of the date hereof
             duly and validly authorized and issued, fully paid and
             non-assessable, and the terms of such stock and of the Stock
             conform in all material respects to the description thereof
             contained in the Prospectus;

                    (iii) The shares of the Stock 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, fully paid and
             non-assessable;

                    (iv) The Company has all requisite corporate power and
             corporate authority to issue, sell and deliver the Stock in
             accordance with and upon the terms and conditions set forth in this
             Agreement; the filing of the Registration Statement and the
             Prospectus with the Commission has been duly authorized by and on
             behalf of the Company; the Registration Statement has been duly
             executed; and no further approval or authority of the shareholders
             or the Board of Directors of the Company is required for the
             issuance of the Stock;

                    (v) The statements made in the Prospectus under the caption
             "Description of Capital Stock," insofar as they purport to
             constitute summaries of the terms of the Company's Common Stock
             (including the Stock), constitute accurate summaries of the terms
             of such Common Stock in all material respects;

                    (vi) Except as described in or contemplated by the
             Prospectus, there are no preemptive or other rights to subscribe
             for or to purchase, nor any restriction upon the voting or transfer
             of, any shares of the Stock pursuant to the Company's charter or
             by-laws or, to such counsel's knowledge, any agreement or other
             instrument and, to such counsel's knowledge, no holder of any
             securities of the Company or any other person has any right under
             the Company's charter, contractually, or otherwise, which right has
             not been satisfied or effectively waived, to cause the Company to
             sell or otherwise issue to them or to permit them to underwrite the
             sale of any shares of capital stock of the Company;

                    (vii) Except as described in or contemplated by the
             Prospectus, to the knowledge of such counsel, there are no
             outstanding securities of the Company convertible or exchangeable
             into or evidencing the right to purchase any shares of capital
             stock of the Company and there are no outstanding or authorized
             options, warrants or rights of any character obligating the Company
             to issue any shares of its capital stock or any



                                      -18-
<PAGE>   19

             securities convertible or exchangeable into or evidencing the right
             to purchase or subscribe for any such shares;

                    (viii) To such counsel's knowledge and other than as set
             forth in the Prospectus, there are no legal or governmental
             proceedings pending to which the Company is a party or of which any
             property or asset of the Company is the subject that are required
             to be disclosed therein; and, to such counsel's knowledge, no such
             proceedings are overtly threatened or contemplated by governmental
             authorities or overtly threatened by others;

                    (ix) (i) Based solely upon oral advice of the Commission's
             staff, the Primary Registration Statement was declared effective
             under the Securities Act as of the date and time specified in such
             opinion, (ii) the Rule 462(b) Registration Statement, if any, was
             filed with the Commission on the date specified therein, (iii) the
             Prospectus was filed with the Commission pursuant to the
             subparagraph of Rule 424(b) of the Rules and Regulations specified
             in such opinion on the date specified therein and, (iv) to the
             knowledge of such counsel, no stop order suspending the
             effectiveness of either of the Registration Statements has been
             issued and no proceeding for that purpose is pending or threatened
             by the Commission;

                    (x) The Registration Statements, as of their respective
             Effective Dates, and the Prospectus, as of its date, and any
             further amendments or supplements thereto, as of their respective
             dates, made by the Company prior to such Delivery Date (other than
             the financial statements and related notes and schedule and other
             financial data contained therein, as to which such counsel need
             express no opinion) complied as to form in all material respects
             with the requirements of the Securities Act and the Rules and
             Regulations;

                    (xi) The statements made in the Prospectus under the
             captions "Management--Change of Control Arrangements, --Employee
             Benefit Plans and Option Grants, --Indemnification of Directors and
             Officers and Limitation on Liability", "Business--Strategic
             Relationships", "Business--Intellectual Property and Other
             Proprietary Rights," "Related Party Transactions" and "Shares
             Eligible for Future Sale" insofar as they purport to constitute
             non-numerical summaries of the terms of statutes, governmental
             rules and regulations thereunder or contracts and other documents
             constitute accurate non-numerical summaries of the terms of such
             statutes, rules and regulations, contracts and other documents in
             all material respects.

                    (xii) To such counsel's knowledge, there are no contracts or
             other documents that are required to be described in the Prospectus
             or filed as exhibits to the Registration Statements by the
             Securities Act or by the


                                      -19-
<PAGE>   20

             Rules and Regulations that have not been described or filed as
             exhibits to the Registration Statements;

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

                    (xiv) The issue and sale of the shares of Stock being
             delivered on such Delivery Date by the Company and the compliance
             by the Company with all of the provisions of this Agreement and the
             consummation of the transactions contemplated hereby (other than
             the performance by the Company of its obligations under the
             indemnification and contribution provisions hereof) and pursuant to
             the Merger did not and do not conflict with or result in a breach
             or violation of any of the terms or provisions of, or constitute a
             default under any agreement or instrument filed as an exhibit to
             the Registration Statement, except as would not have a material
             adverse effect on the business, financial position or results of
             operations of the Company and its subsidiary taken as a whole, nor
             did or do such actions result in any violation of the provisions of
             the charter or by-laws of the Company (including the charter or
             bylaws of Talarian Corporation, a California corporation) or any
             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 properties or assets; and, except for the
             registration of the Stock under the Securities Act and such
             consents, approvals, authorizations, registrations or
             qualifications as may be required under the Exchange Act and
             applicable state securities laws or from the NASD in connection
             with the purchase and distribution of the Stock by the
             Underwriters, no consent, approval, authorization or order of, or
             filing or registration with, any such court or governmental agency
             or governmental body is required for the execution, delivery and
             performance of this Agreement by the Company and the consummation
             of the transactions contemplated hereby and pursuant to the Merger,
             other than those that were obtained or made;

                    (xv) The Company is not, and will not become, as an
             immediate result of the consummation of the transactions
             contemplated by this Agreement, and application of the net proceeds
             therefrom as described in the Prospectus, required to register as
             an investment company under the Investment Company Act of 1940;

                    (xvi) To such counsel's knowledge, there are no contracts,
             agreements or understandings between the Company and any person
             granting such person (a) except as described in the Prospectus, the
             right to require the Company to file a registration statement under
             the Securities Act with respect to any securities of the Company
             owned or to be owned by such person (b) the right, other than
             rights which have been waived or satisfied, to require the Company
             to include such securities in the


                                      -20-
<PAGE>   21

             securities registered pursuant to the Registration Statements or
             (c) except as described in the Prospectus, the right to include
             such securities in any securities registered pursuant to any other
             registration statement filed by the Company under the Securities
             Act in the future;

                    (xvii) to the knowledge of such counsel, neither the Company
             nor its subsidiary has received any notice of infringement of or
             conflict with asserted rights of any third party that has not been
             satisfied or withdrawn with respect to any patents, patent
             applications, trademarks, service marks, trade names, licenses,
             copyrights, technology and proprietary or other confidential
             information currently employed by them in connection with their
             respective businesses which, singly or in the aggregate, would
             reasonably be expected to result in a material adverse change in
             the condition (financial or otherwise), business prospects, net
             worth or results of operations of the Company and its subsidiary
             taken as a whole.

        In rendering such opinion, such counsel may (i) state that its opinion
        is limited to matters governed by the Federal laws of the United States
        of America and the laws of the State of California; and (ii) rely (to
        the extent such counsel deems proper and specifies in its opinion), as
        to matters involving the application of the laws of other states upon
        the opinion of other counsel of good standing, provided that such other
        counsel is satisfactory to counsel for the Underwriters and furnishes a
        copy of its opinion to the Representatives. Such counsel shall also have
        furnished to the Representatives a written statement, addressed to the
        Underwriters and dated such Delivery Date, in form and substance
        reasonably satisfactory to the Representatives, to the effect that (x)
        such counsel has acted as counsel to the Company on a regular basis, has
        acted as counsel to the Company in connection with previous financing
        transactions and has acted as counsel to the Company in connection with
        the preparation of the Registration Statements, and (y) based on the
        foregoing, no facts have come to the attention of such counsel that
        cause it to believe that the Registration Statements, as of their
        respective Effective Dates, contained any untrue statement of a material
        fact or omitted to state any material fact required to be stated therein
        or necessary in order to make the statements therein not misleading, or
        that the Prospectus contains any untrue statement of a material fact or
        omits to state any material fact required to be stated therein or
        necessary in order to make the statements therein, in light of the
        circumstances under which they were made, not misleading. The foregoing
        statement of belief may be qualified by a statement to the effect that
        such counsel does not assume any responsibility for the accuracy,
        completeness or fairness of the statements contained in the Registration
        Statements or the Prospectus except to the extent set forth in
        paragraphs (v) and (xi) above.

             (e) The Representatives shall have received from Simpson Thacher &
        Bartlett, counsel for the Underwriters, such opinion or opinions, dated
        such Delivery Date, with respect to the issuance and sale of the shares
        of Stock, the Registration Statement, the Prospectus and other related
        matters as the



                                      -21-
<PAGE>   22

        Representatives may reasonably require, and the Company shall have
        furnished to such counsel such documents as they reasonably request for
        the purpose of enabling them to pass upon such matters.

             (f) At the time of execution of this Agreement, the Representatives
        shall have received from KPMG, LLP, a letter, in form and substance
        reasonably satisfactory to the Representatives, addressed to the
        Underwriters and dated the date hereof (i) confirming that they are
        independent public accountants within the meaning of the Securities Act
        and are in compliance with the applicable requirements relating to the
        qualification of accountants under Rule 2-01 of Regulation S-X of the
        Commission, (ii) stating, as of the date hereof (or, with respect to
        matters involving changes or developments since the respective dates as
        of which specified financial information is given in the Prospectus, as
        of a date not more than five days prior to the date hereof), the
        conclusions and findings of such firm with respect to the financial
        information and other matters ordinarily covered by accountants'
        "comfort letters" to underwriters in connection with registered public
        offerings.

             (g) With respect to the letter of KPMG, LLP, referred to in the
        preceding paragraph and delivered to the Representatives concurrently
        with the execution of this Agreement (as used in this paragraph, the
        "initial letter"), the Company shall have furnished to the
        Representatives a letter (as used in this paragraph, the "bring-down
        letter") of such accountants, addressed to the Underwriters and dated
        such Delivery Date (i) confirming that they are independent public
        accountants within the meaning of the Securities Act and are in
        compliance with the applicable requirements relating to the
        qualification of accountants under Rule 2-01 of Regulation S-X of the
        Commission, (ii) stating, as of the date of the bring-down letter (or,
        with respect to matters involving changes or developments since the
        respective dates as of which specified financial information is given in
        the Prospectus, as of a date not more than five days prior to the date
        of the bring-down letter), the conclusions and findings of such firm
        with respect to the financial information and other matters covered by
        the initial letter and (iii) confirming in all material respects the
        conclusions and findings set forth in the initial letter.

             (h) The Company shall have furnished to the Representatives a
        certificate, dated such Delivery Date, of its Chairman of the Board, its
        President or a Vice President and its chief financial officer stating,
        on behalf of the Company, that:

                    (i) The representations, warranties and agreements of the
             Company in Section 1 are true and correct in all material respects
             as of such Delivery Date; the Company has complied with all its
             agreements contained herein in all material respects; and the
             conditions set forth in Section 7(a) have been fulfilled;




                                      -22-
<PAGE>   23

                    (ii) (A) Neither the Company nor any of its subsidiaries has
             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 or (B) since such date there has
             not 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 or prospects of the Company and its
             subsidiaries taken as a whole, otherwise than as set forth or
             contemplated in the Prospectus; and

                    (iii) They have carefully examined the Registration
             Statements and the Prospectus and, in their opinion (A) the
             Registration Statements, as of their respective Effective Dates,
             and the Prospectus, as of each of the Effective Dates, did not
             include any untrue statement of a material fact and did not omit to
             state any material fact required to be stated therein or necessary
             to make the statements therein not misleading, and (B) since the
             Effective Date of the Primary Registration Statement, no event has
             occurred which should have been set forth in a supplement or
             amendment to either of the Registration Statements or the
             Prospectus.

                    (iv) To their knowledge, no stop order suspending the
             effectiveness of either of the Registration Statements or any part
             thereof has been issued and no proceeding for that purpose has been
             initiated or threatened by the Commission.

             (i) (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 or (ii) since such date 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, 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, so material and
        adverse as to make it impracticable or inadvisable to proceed with the
        public offering or the delivery of the Stock being delivered on such
        Delivery Date on the terms and in the manner contemplated in the
        Prospectus.

             (j) Subsequent to the execution and delivery of this Agreement
        there shall not have occurred any of the following: (i) trading in
        securities generally on the



                                      -23-
<PAGE>   24

        New York Stock Exchange or the American Stock Exchange or in the Nasdaq
        National Market, or trading in any securities of the Company on any
        exchange or in the over-the-counter market, shall have been suspended or
        minimum prices shall have been established on any such exchange or such
        market by the Commission, by such exchange or by any other regulatory
        body or governmental authority having jurisdiction, (ii) a banking
        moratorium shall have been declared by Federal or state authorities,
        (iii) the United States shall have become engaged in hostilities, there
        shall have been an escalation in hostilities involving the United States
        or there shall have been a declaration of a national emergency or war by
        the United States or (iv) there shall have occurred such a material
        adverse change in general economic, political or financial conditions
        (or the effect of international conditions on the financial markets in
        the United States shall be such) as to make it, in the judgment of a
        majority in interest of the several Underwriters, impracticable or
        inadvisable to proceed with the public offering or delivery of the Stock
        being delivered on such Delivery Date on the terms and in the manner
        contemplated in the Prospectus.

             (k) The NASDAQ National Market System shall have approved the Stock
        for inclusion, subject only to official notice of issuance and evidence
        of satisfactory distribution.

        All opinions, letters, evidence and certificates mentioned above or
elsewhere in this Agreement shall be deemed to be in compliance with the
provisions hereof only if they are in form and substance reasonably satisfactory
to counsel for the Underwriters.

        8. Indemnification and Contribution.

        (a) The Company shall indemnify and hold harmless each Underwriter, its
officers and employees and each person, if any, who controls any Underwriter
within the meaning of the Securities Act, from and against any loss, claim,
damage or liability, joint or several, or any action in respect thereof
(including, but not limited to, any loss, claim, damage, liability or action
relating to purchases and sales of Stock), to which that Underwriter, officer,
employee or controlling person may become subject, under the Securities Act or
otherwise, insofar as such loss, claim, damage, liability or action arises out
of, or is based upon, (i) any untrue statement or alleged untrue statement of a
material fact contained (A) in any Preliminary Prospectus, either of the
Registration Statements or the Prospectus, or in any amendment or supplement
thereto or (B) in any materials or information provided to investors by, or with
the approval of, the Company in connection with the marketing of the offering of
the Shares, including any roadshow or investor presentation made to investors by
the Company (whether in person or electronically ) ("Roadshow Materials"),
(ii) the omission or alleged omission to state in any Preliminary Prospectus,
either of the Registration Statements or the Prospectus, or in any amendment or
supplement thereto, or in any Roadshow Materials any material fact required to
be stated therein or necessary to make the statements therein not misleading or
(iii) any act or failure to act, or any alleged act or failure to act, by any
Underwriter in connection with, or relating in any manner to, the Stock or the
offering contemplated hereby, and which is included as part of or referred to in
any loss, claim, damage, liability or action arising out of or based upon
matters



                                      -24-
<PAGE>   25

covered by clause (i) or (ii) above (provided that the Company shall not be
liable in the case of any matter covered by this clause (iii) to the extent that
it is determined in a final judgement by a court of competent jurisdiction that
such loss, claim, damage, liability or action resulted directly from any such
act or failure to act undertaken or omitted to be taken by such Underwriter
through its gross negligence or wilful misconduct), and shall reimburse each
Underwriter and each such officer, employee and controlling person promptly upon
demand for any legal or other expenses reasonably incurred by that Underwriter,
officer, employee or controlling person in connection with investigating or
defending or preparing to defend against any such loss, claim, damage, liability
or action as such expenses are incurred; provided, however, that the Company
shall not be liable in any such case to the extent that any such loss, claim,
damage, liability or action arises out of, or is based upon, any untrue
statement or alleged untrue statement or omission or alleged omission made in
any Preliminary Prospectus, the Registration Statements or the Prospectus, or in
any such amendment or supplement, in reliance upon and in conformity with the
written information furnished to the Company through the Representatives by or
on behalf of any Underwriter specifically for inclusion therein and described in
Section 8(e); and provided further that as to any Preliminary Prospectus this
indemnity agreement shall not inure to the benefit of any Underwriter, its
officers or employees or any person controlling that Underwriter on account of
any loss, claim, damage, liability or action arising from the sale of Stock to
any person by that Underwriter if that Underwriter failed to send or give a copy
of the Prospectus, as the same may be amended or supplemented, to that person
within the time required by the Securities Act, and the untrue statement or
alleged untrue statement of any material fact or omission or alleged omission to
state a material fact in such Preliminary Prospectus was corrected in the
Prospectus, unless such failure resulted from non-compliance by the Company with
Section 5(c) The foregoing indemnity agreement is in addition to any liability
which the Company may otherwise have to any Underwriter or to any officer,
employee or controlling person of that Underwriter.

        (b) Each Underwriter, severally and not jointly, shall indemnify and
hold harmless the Company, its officers and employees, each of its directors and
each person, if any, who controls the Company within the meaning of the
Securities Act, from and against any loss, claim, damage or liability, joint or
several, or any action in respect thereof, to which the Company or any such
director, officer, employee or controlling person may become subject, under the
Securities Act or otherwise, insofar as such loss, claim, damage, liability or
action arises out of, or is based upon, (i) any untrue statement or alleged
untrue statement of a material fact contained in any Preliminary Prospectus,
either of the Registration Statements or the Prospectus, or in any amendment or
supplement thereto, (ii) the omission or alleged omission to state in any
Preliminary Prospectus, either of the Registration Statements or the Prospectus,
or in any amendment or supplement thereto, or in any Blue Sky Application any
material fact required to be stated therein or necessary to make the statements
therein not misleading, but in each case only to the extent that the untrue
statement or alleged untrue statement or omission or alleged omission was made
in reliance upon and in conformity with the written information furnished to the
Company through the Representatives by or on behalf of that Underwriter
specifically for inclusion therein and described in Section 8(e), and shall
reimburse the Company and any such director, officer, employee or controlling
person for any legal or other expenses reasonably incurred by the Company or any
such director, officer, employee or controlling person in connection with
investigating or defending or preparing to defend against any such loss, claim,
damage, liability or action as such expenses are incurred. The foregoing
indemnity agreement is


                                      -25-
<PAGE>   26

in addition to any liability which any Underwriter may otherwise have to the
Company or any such director, officer, employee or controlling person.

        (c) Promptly after receipt by an indemnified party under this Section 8
of notice of any claim or the commencement of any action, the indemnified party
shall, if a claim in respect thereof is to be made against the indemnifying
party under this Section 8 , notify the indemnifying party in writing of the
claim or the commencement of that action; provided, however, that the failure to
notify the indemnifying party shall not relieve it from any liability which it
may have under this Section 8 except to the extent it has been materially
prejudiced by such failure and, provided further, that the failure to notify the
indemnifying party shall not relieve it from any liability which it may have to
an indemnified party otherwise than under this Section 8 If any such claim or
action shall be brought against an indemnified party, and it shall notify the
indemnifying party thereof, the indemnifying party shall be entitled to
participate therein and, to the extent that it wishes, jointly with any other
similarly notified indemnifying party, to assume the defense thereof with
counsel reasonably satisfactory to the indemnified party. After notice from the
indemnifying party to the indemnified party of its election to assume the
defense of such claim or action, the indemnifying party shall not be liable to
the indemnified party under this Section 8 for any legal or other expenses
subsequently incurred by the indemnified party in connection with the defense
thereof other than reasonable costs of investigation; provided, however, that
the Representatives shall have the right to employ one counsel (and any
necessary local counsel) to represent jointly the Representatives and those
other Underwriters and their respective officers, employees and controlling
persons who may be subject to liability arising out of any claim in respect of
which indemnity may be sought by the Underwriters against the Company under this
Section 8 if, in the reasonable judgment of the Representatives, it is advisable
for the Representatives and those Underwriters, officers, employees and
controlling persons to be jointly represented by separate counsel, and in that
event the reasonable fees and expenses of such separate counsel shall be paid by
the Company, any indemnified party shall have the right to employ separate
counsel in any such action and to participate in the defense thereof but the
fees and expenses of such counsel shall be at the expense of such indemnified
party unless (i) the employment thereof has been specifically authorized by the
indemnifying party in writing, (ii) such indemnified party shall have been
advised by such counsel that there may be one or more legal defenses available
to it which are different from or additional to those available to the
indemnifying party and in the reasonable judgment of such counsel it is
advisable for such indemnified party to employ separate counsel or (iii) the
indemnifying party has failed to assume the defense of such action and employ
counsel reasonably satisfactory to the indemnified party, in which case, if such
indemnified party notifies the indemnifying party in writing that it elects to
employ separate counsel at the expense of the indemnifying party, the
indemnifying party shall not have the right to assume the defense of such action
on behalf of such indemnified party, it being understood, however, that the
indemnifying party shall not, in connection with any one such action or separate
but substantially similar or related actions in the same jurisdiction arising
out of the same general allegations or circumstances, be liable for the
reasonable fees and expenses of more than one separate firm of attorneys at any
time for all such indemnified parties, which firm shall be designated in writing
by the Representatives, if the indemnified parties under this Section 8 consist
of any Underwriter or any of their respective officers, employees or controlling
persons, or by the Company, if the indemnified parties under this Section 8
consist of the Company or any of the Company's directors,


                                      -26-
<PAGE>   27

officers, employees or controlling persons. No indemnifying party shall (i)
without the prior written consent of the indemnified parties (which consent
shall not be unreasonably withheld or delayed), settle or compromise or consent
to the entry of any judgment with respect to any pending or threatened claim,
action, suit or proceeding in respect of which indemnification or contribution
may be sought hereunder (whether or not the indemnified parties are actual or
potential parties to such claim or action) unless such settlement, compromise or
consent includes an unconditional release of each indemnified party from all
liability arising out of such claim, action, suit or proceeding, or (ii) be
liable for any settlement of any such action effected without its written
consent (which consent shall not be unreasonably withheld or delayed), but if
settled with its written consent or if there be a final judgment of the
plaintiff in any such action, the indemnifying party agrees to indemnify and
hold harmless any indemnified party from and against any loss of liability by
reason of such settlement or judgment.

        (d) If the indemnification provided for in this Section 8 shall for any
reason be unavailable to or insufficient to hold harmless an indemnified party
under Section 8(a) or 8(b) in respect of any loss, claim, damage or liability,
or any action in respect thereof, referred to therein, then each indemnifying
party shall, in lieu of indemnifying such indemnified party, contribute to the
amount paid or payable by such indemnified party as a result of such loss,
claim, damage or liability, or action in respect thereof, (i) in such proportion
as shall be appropriate to reflect the relative benefits received by the Company
on the one hand and the Underwriters on the other from the offering of the Stock
or (ii) if the allocation provided by clause (i) above is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of
the Company on the one hand and the Underwriters on the other with respect to
the statements or omissions which resulted in such loss, claim, damage or
liability, or action in respect thereof, as well as any other relevant equitable
considerations. The relative benefits received by the Company on the one hand
and the Underwriters on the other with respect to such offering shall be deemed
to be in the same proportion as the total net proceeds from the offering of the
Stock purchased under this Agreement (before deducting expenses) received by the
Company, on the one hand, and the total underwriting discounts and commissions
received by the Underwriters with respect to the Stock purchased under this
Agreement, on the other hand, bear to the total gross proceeds from the offering
of the shares of the Stock under this Agreement, 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 whether the untrue or alleged untrue statement of a
material fact or omission or alleged omission to state a material fact relates
to information supplied by the Company or the Underwriters, the intent of the
parties and their relative knowledge, access to information and opportunity to
correct or prevent such statement or omission. The Company and the Underwriters
agree that it would not be just and equitable if contributions pursuant to this
Section 8(d) were to be 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 into account the equitable considerations
referred to herein. The amount paid or payable by an indemnified party as a
result of the loss, claim, damage or liability, or action in respect thereof,
referred to above in this Section 8(d) shall be deemed to include, for purposes
of this Section 8(d), 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 Section 8(d), no Underwriter
shall be required to contribute any amount in excess of the amount by which the
total price at which the Stock


                                      -27-
<PAGE>   28

underwritten by it and distributed to the public was offered to the public
exceeds the amount of any damages which such Underwriter has otherwise paid or
become liable to pay by reason of any untrue or alleged untrue statement or
omission or alleged omission. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation. The Underwriters' obligations to contribute as provided in
this Section 8(d) are several in proportion to their respective underwriting
obligations and not joint.

        (e) The Underwriters severally confirm that the statements with respect
to the public offering of the Stock set forth on the cover page of, and under
the caption "Underwriting" in, the Prospectus are correct and constitute the
only information furnished in writing to the Company by or on behalf of the
Underwriters specifically for inclusion in the Registration Statements and the
Prospectus.

        9. Directed Share Program.

        It is understood that approximately [_________] shares of the Firm Stock
("Directed Shares") will initially be reserved by the Underwriters for offer and
sale to officers, directors, employees and consultants of the Company and their
family members and to other persons having business relationships with the
Company and its subsidiaries ("Directed Share Participants") upon the terms and
conditions set forth in the Prospectus and in accordance with the rules and
regulations of the National Association of Securities Dealers, Inc. Under no
circumstances will Lehman Brothers Inc. or any Underwriter be liable to the
Company or to any Directed Share Participant for any action taken or omitted to
be taken in good faith in connection with such Directed Share Program. To the
extent that any Directed Shares are not affirmatively confirmed for purchase by
any Directed Share Participant on or immediately after the date of this
Agreement, such Directed Shares may be offered to the public upon the terms and
conditions set forth in the Prospectus.

        The Company agrees to pay all fees and disbursements incurred by the
Underwriters in connection with the Directed Share Program, including counsel
fees and any stamp duties or other taxes incurred by the Underwriters in
connection with the Directed Share Program.

        In connection with the offer and sale of the Directed Shares, the
Company agrees, promptly upon a request in writing, to indemnify and hold
harmless Lehman Brothers Inc. and the other Underwriters from and against any
loss, claim, damage, expense, liability or action which (i) arises out of, or is
based upon, any untrue statement or alleged untrue statement of a material fact
contained in any material prepared by or with the approval of the Company for
distribution to Directed Share Participants in connection with the Directed
Share Program or any omission or alleged omission to state therein a material
fact required to be stated therein or necessary to make the statements therein
not misleading, (ii) arises out of the failure of any Directed Share Program
participant to pay for and accept delivery of Directed Shares that the
Participant agreed to purchase or (iii) is otherwise related to the Directed
Share Program, other than losses, claims, damages or liabilities (or expenses
relating thereto) that are finally judicially


                                      -28-
<PAGE>   29

determined to have resulted directly from the bad faith or gross negligence of
Lehman Brothers Inc.

        10. Defaulting Underwriters.

        If, on either Delivery Date, any Underwriter defaults in the performance
of its obligations under this Agreement, the remaining non-defaulting
Underwriters shall be obligated to purchase the Stock which the defaulting
Underwriter agreed but failed to purchase on such Delivery Date in the
respective proportions which the number of shares of the Firm Stock set opposite
the name of each remaining non-defaulting Underwriter in Schedule 1 hereto bears
to the total number of shares of the Firm Stock set opposite the names of all
the remaining non-defaulting Underwriters in Schedule 1 hereto; provided,
however, that the remaining non-defaulting Underwriters shall not be obligated
to purchase any of the Stock on such Delivery Date if the total number of shares
of the Stock which the defaulting Underwriter or Underwriters agreed but failed
to purchase on such date exceeds 9.09% of the total number of shares of the
Stock to be purchased on such Delivery Date, and any remaining non-defaulting
Underwriter shall not be obligated to purchase more than 110% of the number of
shares of the Stock which it agreed to purchase on such Delivery Date pursuant
to the terms of Section 2 If the foregoing maximums are exceeded, the remaining
non-defaulting Underwriters, or those other underwriters satisfactory to the
Representatives who so agree, shall have the right, but shall not be obligated,
to purchase, in such proportion as may be agreed upon among them, all the shares
of the Stock to be purchased on such Delivery Date. If the remaining
Underwriters or other underwriters satisfactory to the Representatives do not
elect to purchase the shares which the defaulting Underwriter or Underwriters
agreed but failed to purchase on such Delivery Date, this Agreement (or, with
respect to the Second Delivery Date, the obligation of the Underwriters to
purchase, and of the Company to sell, the Option Stock) shall terminate without
liability on the part of any non-defaulting Underwriter or the Company, except
that the Company will continue to be liable for the payment of expenses to the
extent set forth in Sections 6 and 12 As used in this Agreement, the term
"Underwriter" includes, for all purposes of this Agreement unless the context
requires otherwise, any party not listed in Schedule 1 hereto who, pursuant to
this Section 10, purchases Firm Stock which a defaulting Underwriter agreed but
failed to purchase.

        Nothing contained herein shall relieve a defaulting Underwriter of any
liability it may have to the Company for damages caused by its default. If other
underwriters are obligated or agree to purchase the Stock of a defaulting or
withdrawing Underwriter, either the Representatives or the Company may postpone
the First Delivery Date for up to seven full business days in order to effect
any changes that in the opinion of counsel for the Company or counsel for the
Underwriters may be necessary in the Registration Statement, the Prospectus or
in any other document or arrangement.

        11. Termination.

        The obligations of the Underwriters hereunder may be terminated by the
Representatives by notice given to and received by the Company prior to delivery
of and payment for the Firm Stock if, prior to that time, any of the events
described in Sections 7(i) or 7(j) shall


                                      -29-
<PAGE>   30

have occurred or if the Underwriters shall decline to purchase the Shares for
any reason permitted under this Agreement.

        12. Reimbursement of Underwriters' Expenses. If (a) the Company shall
fail to tender the Stock for delivery to the Underwriters by reason of any
failure, refusal or inability on the part of the Company to perform any
agreement on its part to be performed, or because any other condition to the
Underwriters' obligations hereunder required to be fulfilled by the Company is
not fulfilled or (b) the Underwriters shall decline to purchase the Stock for
any reason permitted under this Agreement (including the termination of this
Agreement pursuant to Section 11), the Company shall reimburse the Underwriters
for the reasonable fees and expenses of their counsel and for such other
out-of-pocket expenses as shall have been incurred by them in connection with
this Agreement and the proposed purchase of the Stock, and upon demand the
Company shall pay the full amount thereof to the Representatives.

        13. Notices, etc. All statements, requests, notices and agreements
hereunder shall be in writing, and:

             (a) if to the Underwriters, shall be delivered or sent by mail,
        telex or facsimile transmission to:

                                       LEHMAN BROTHERS INC.
                                       Three World Financial Center
                                       New York, New York 10285
                                       Attention:  Syndicate Department
                                       Fax: 212-528-8822

             (b) if to the Company, shall be delivered or sent by mail, telex or
        facsimile transmission to the address of the Company set forth in the
        Primary Registration Statement, Attention: Michael A. Morgan (Fax:
        650-965-9077), with a copy to Barry J. Kramer, Esq., Fenwick & West LLP,
        Two Palo Alto Square, Palo Alto California, 94306;

provided, however, that any notice to an Underwriter pursuant to Section 8(c)
shall be delivered or sent by mail, telex or facsimile transmission to such
Underwriter at its address set forth in its acceptance telex to the
Representatives, which address will be supplied to any other party hereto by the
Representatives upon request. Any such statements, requests, notices or
agreements shall take effect at the time of receipt thereof. The Company shall
be entitled to act and rely upon any request, consent, notice or agreement given
or made on behalf of the Underwriters by Lehman Brothers Inc. on behalf of the
Representatives.

        14. Persons Entitled to Benefit of Agreement. This Agreement shall inure
to the benefit of and be binding upon the Underwriters, the Company and their
respective successors. This Agreement and the terms and provisions hereof are
for the sole benefit of only those persons, except that (A) the representations,
warranties, indemnities and agreements of the Company contained in this
Agreement shall also be deemed to be for the benefit of the officers and
employees of each Underwriter and the person or persons, if any, who control
each


                                      -30-
<PAGE>   31

Underwriter within the meaning of Section 15 of the Securities Act and (B) the
indemnity agreement of the Underwriters contained in Section 8(b) of this
Agreement shall be deemed to be for the benefit of directors, officers and
employees of the Company and any person controlling the Company within the
meaning of Section 15 of the Securities Act. Nothing in this Agreement is
intended or shall be construed to give any person, other than the persons
referred to in this Section 14, any legal or equitable right, remedy or claim
under or in respect of this Agreement or any provision contained herein.

        15. Survival. The respective indemnities, representations, warranties
and agreements of the Company and the Underwriters contained in this Agreement
or made by or on behalf of them, respectively, pursuant to this Agreement, shall
survive the delivery of and payment for the Stock and shall remain in full force
and effect, regardless of any investigation made by or on behalf of any of them
or any person controlling any of them.

        16. Definition of the Terms "Business Day" and "Subsidiary". For
purposes of this Agreement, (a) "business day" means any day on which the NASDAQ
National Market is open for trading and (b) "subsidiary" has the meaning set
forth in Rule 405 of the Rules and Regulations.

        17. GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF NEW YORK.

        18. Counterparts. This Agreement may be executed in one or more
counterparts and, if executed in more than one counterpart, the executed
counterparts shall each be deemed to be an original but all such counterparts
shall together constitute one and the same instrument.

        19. Headings. The headings herein are inserted for convenience of
reference only and are not intended to be part of, or to affect the meaning or
interpretation of, this Agreement.





                                      -31-
<PAGE>   32

        If the foregoing correctly sets forth the agreement between the Company
and the Underwriters, please indicate your acceptance in the space provided for
that purpose below.


                                       Very truly yours,

                                       TALARIAN CORPORATION

                                       By:
                                          ------------------------------------
                                          Name:  Paul Larson
                                          Title: Chief Executive Officer



Accepted:

LEHMAN BROTHERS INC.
SG COWEN SECURITIES CORP.
WIT SOUNDVIEW CORPORATION
FIDELITY CAPITAL MARKETS,  a division of
  National Financial Services Corporation

For themselves and as Representatives
of the several Underwriters named
in Schedule 1 hereto


By:    LeHMAN BROTHERS INC.

By:
   -----------------------------------
       Authorized Representative



                                      -32-
<PAGE>   33


                                   SCHEDULE 1


<TABLE>
<CAPTION>
                                                                                     Number of
               Underwriters                                                            Shares
               ------------                                                           --------
<S>                                                                                  <C>
Lehman Brothers Inc. ..............................................................
SG Cowen Securities Corp. .........................................................
Wit Soundview Corporation
Fidelity Capital Markets, a division of
  National Financial Services Corporation .........................................
                                                                                      --------
      Total .......................................................................
                                                                                      ========
</TABLE>













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<PAGE>   34


                                   SCHEDULE 2



      Shareholder Name
























                                      -1-
<PAGE>   35



                                                                       EXHIBIT A



                            [FORM OF LOCK-UP LETTER]

                            LOCK-UP LETTER AGREEMENT


LEHMAN BROTHERS INC.
SG COWEN SECURITIES CORPORATION
WIT SOUNDVIEW CORPORATION
FIDELITY CAPITAL MARKETS, a division of
  National Financial Services Corporation
As Representatives of the several
   Underwriters,
c/o Lehman Brothers Inc.
Three World Financial Center
New York New York 10285

Dear Sirs:

        The undersigned understands that you and certain other firms may enter
into an Underwriting Agreement (the "UNDERWRITING AGREEMENT") providing for the
purchase by you and such other firms (the "UNDERWRITERS") of shares (the
"SHARES") of Common Stock, without par value (the "COMMON STOCK"), of Talarian
Corporation, a California corporation, (together with any successor Delaware
corporation resulting from a merger for purposes of changing the jurisdiction of
incorporation of Talarian Corporation, the "COMPANY;" and, in the event of such
merger, the term "Common Stock" shall include the common stock of such successor
corporation), and that the Underwriters would propose to reoffer the Shares to
the public (the "OFFERING").

        In consideration of the execution of the Underwriting Agreement by the
Underwriters, and for other good and valuable consideration, the undersigned
hereby irrevocably agrees that, without the prior written consent of Lehman
Brothers Inc. ("LEHMAN BROTHERS"), on behalf of the Underwriters, the
undersigned will not, directly or indirectly, (1) offer for sale, sell, pledge,
or otherwise dispose of (or enter into any transaction or device that is
designed, or could be expected, to result in the disposition by any person at
any time in the future of) any shares of Common Stock (including, without
limitation, shares of Common Stock that may be deemed to be beneficially owned
by the undersigned in accordance with the rules and regulations of the
Securities and Exchange Commission and shares of Common Stock that may be issued
upon exercise of any option or warrant) or securities convertible into or
exchangeable for Common Stock owned by the undersigned on the date of execution
of this Lock-Up Letter Agreement or on the date of the closing of the Offering,
or sell or grant options, rights or warrants with respect to any such shares of
Common Stock or (2) enter into any swap or other derivatives transaction that
transfers to another, in whole or in part, any of the economic benefits or risks
of ownership of such shares of Common Stock, whether any such transaction
described in clause (1) or (2) above is to be settled by delivery of Common
Stock or other securities, in cash or otherwise, for a period of 180 days after
the date of the final prospectus relating to the Offering.



                                      -1-
<PAGE>   36

        Notwithstanding the foregoing, (i) if the undersigned is an individual,
he or she may transfer any shares of Common Stock or securities convertible into
or exchangeable or exercisable for shares of Common Stock either during his or
her lifetime or upon death by will or intestacy to his or her immediate family
or to a trust if the beneficiaries of such trust are exclusively the undersigned
and/or a member or members of his or her immediate family; provided, however ,
that prior to any such transfer each transferee shall execute an agreement
substantially identical to this agreement, pursuant to which each transferee
shall agree to receive and hold such shares of Common Stock, or securities
convertible into or exchangeable or exercisable for shares of Common Stock,
subject to the provisions hereof, and there shall be no further transfer except
in accordance with the provisions hereof, (ii) if the undersigned is a
partnership, the partnership may transfer any shares of Common Stock or
securities convertible into or exchangeable or exercisable for Common Stock to a
partner of such partnership, to a retired partner of such partnership, or to the
estate of any such partner or retired partner, and any such partner who is an
individual may transfer such shares of Common Stock or securities convertible
into or exchangeable or exercisable for shares of Common Stock by gift, will or
intestacy to a member or members of his or her immediate family; provided,
however, that prior to any such transfer each transferee shall execute an
agreement substantially identical to this agreement, pursuant to which each
transferee shall agree to receive and hold such shares of Common Stock or
securities convertible into or exchangeable or exercisable for shares of Common
Stock subject to the provisions hereof, and there shall be no further transfer
except in accordance with the provisions hereof and (iii) if the undersigned is
a nonpublic corporation, such corporation may transfer shares of Common Stock to
an affiliated nonpublic corporation, partnership or other affiliated entity,
provided that the transferor corporation owns 50% or more of the voting power of
such transferee nonpublic corporation, partnership or other affiliated entity,
as the case may be, and may distribute shares of Common Stock to its
shareholders, who may in turn make transfers as set forth in clause (i) above;
provided, however, that prior to any such transfer each transferee shall execute
an agreement substantially identical to this agreement, pursuant to which each
transferee shall agree to receive and hold such shares of Common Stock or
securities convertible into or exchangeable or exercisable for shares of Common
Stock subject to the provisions hereof, and there shall be no further transfer
except in accordance with the provisions hereof. For purposes of this paragraph,
"immediate family" shall mean spouse, lineal descendant, father, mother,
brother, sister, father-in-law, mother-in-law, brother-in-law, sister-in-law, or
domestic partner of the transferor.

             In furtherance of the foregoing, the Company and its Transfer Agent
are hereby authorized to decline to make any transfer of securities if such
transfer would constitute a violation or breach of this Lock-Up Letter
Agreement.

             It is understood that, if Lehman Brothers notifies the undersigned
that it does not intend to proceed with the Offering or if the Underwriting
Agreement (other than the provisions thereof which survive termination), after
it becomes effective, shall terminate or be terminated prior to payment for and
delivery of the Shares, the undersigned will be released from its obligations
under this Lock-Up Letter Agreement. This Lock-Up Letter Agreement shall expire
on August 15, 2000 if the Offering has not been consummated prior to such date
unless the Company agrees, in writing, with Lehman Brothers to extend the
expiration date to a date not later than December 31, 2000.

             The undersigned understands that the Company and the Underwriters
will proceed with the Offering in reliance on this Lock-Up Letter Agreement.



                                      -2-
<PAGE>   37

             Whether or not the Offering actually occurs depends on a number of
factors, including market conditions. Any Offering will only be made pursuant to
an Underwriting Agreement, the terms of which are subject to negotiation between
the Company and the Underwriters.

             The undersigned hereby represents and warrants that the undersigned
has full power and authority to enter into this Lock-Up Letter Agreement and
that, upon request, the undersigned will execute any additional documents
necessary in connection with the enforcement hereof. Any obligations of the
undersigned shall be binding upon the heirs, personal representatives,
successors and assigns of the undersigned.








                                       Very truly yours,
                                       *

                                       By:
                                          -----------------------------------
                                          Name:
                                        **Title:



Dated: March     , 2000


* Insert name of entity if applicable
** Not applicable for individuals



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