AT HOME CORP
8-K, 1999-01-14
COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549


                                   FORM 8-K


                                CURRENT REPORT
                        Pursuant to Section 13 or 15(d)
                    of the Securities Exchange Act of 1934

      Date of Report (Date of earliest event reported):  JANUARY 14, 1999
 

                              AT HOME CORPORATION
- --------------------------------------------------------------------------------
            (Exact name of Registrant as specified in its charter)


                                   DELAWARE
               ------------------------------------------------
                (State or other jurisdiction of incorporation)

 
    000-22697                                                  77-0408542
- ------------------                                        ----------------------
   (Commission                                               (IRS Employer
   File Number)                                           Identification No.)
 
 
 
                    425 Broadway Street, Redwood City, CA             94063
- --------------------------------------------------------------------------------
                   (Address of principal executive offices)         (Zip Code)
 

 
                                (650) 569-5000
- --------------------------------------------------------------------------------
             (Registrant's telephone number, including area code)

 
________________________________________________________________________________
         (Former name or former address, if changed since last report)
 
<PAGE>
 
ITEM 2:  ACQUISITION OR DISPOSITION OF ASSETS.

     On December 30, 1998, At Home Corporation, a Delaware corporation (the
"Company") completed its acquisition of Narrative Communications Corp., a
Delaware corporation ("Narrative"). Narrative, a provider of rich media
advertising and direct marketing solutions for the World Wide Web, is based in
Waltham, Massachusetts and has nearly 50 employees. The Company plans to
continue to offer Narrative's rich media advertising services across the
Company's complement of Internet distribution channels, including standard dial-
up, high speed (T1, ISDN), broadband PC and TV set-top connections.

     The acquisition was accomplished by merging a wholly owned subsidiary of
the Company with and into Narrative (the "Merger"), with Narrative surviving the
Merger and becoming a wholly owned subsidiary of the Company. The Merger was
accounted for as a purchase; the Company anticipates that it will allocate a
substantial majority of the purchase price to intangible assets and amortize
this allocation over the respective useful lives of those assets, and that it
will charge the remainder to operations related to in-process research and
development. The parties structured the Merger to qualify as a tax free
reorganization.

     In the Merger, the Company will issue up to a maximum of approximately 1.35
million shares of its Series A Common Stock (the "Shares") to Narrative
security holders and has assumed options to purchase Narrative Common Stock.
These assumed options will be exercisable for approximately 141,273 Shares in
the aggregate (which count towards the 1.35 million Shares to be issued in the
Merger), or approximately .2206 Shares each, subject to the terms and
conditions, including exercisability and vesting schedules, of the original
Narrative options. The Company is obligated to file, as promptly as reasonably
practicable after the completion of the Merger, a shelf registration statement
on Form S-3 to provide for the resale of certain of the Shares. The Company is
further obligated to file a Registration Statement on Form S-8 (or other
applicable form) with respect to the assumed options and the Shares issued
pursuant to the exercise of these options within 180 days after the completion
of the Merger.

                                       2
<PAGE>
 
ITEM 7:  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

     (a)  Financial Statements.
          -------------------- 

          Financial statements required by this item have not been included with
          the original report on Form 8-K but will be filed prior to March 15,
          1999.

     (b)  Pro Forma Financial Information.
          ------------------------------- 

          Pro forma financial information required by this item has not been
          included with the original report on Form 8-K but will be filed prior
          to March 15, 1999.

     (c)  Exhibits.
          -------- 

          2.1  Agreement and Plan of Merger dated December 17, 1998 by and among
               the Company, Transitory Corporation (a wholly owned subsidiary of
               the Company) and Narrative.

          2.2  Certificate of Merger as filed on December 30, 1998 with the
               Secretary of State of the State of Delaware.

          2.3  Escrow Agreement dated December 30, 1998 by and among the
               Company, Charles M. Hazard, Jr. as representative of the
               Narrative stockholders and State Street Bank and Trust Company of
               California, N.A., as escrow agent.

          2.4  Rights Agreement dated December 30, 1998 by and between the
               Company and each of the Narrative stockholders.

          99.1 Press Release issued by the Company on December 18, 1998
               announcing the agreement by the Company to acquire Narrative.

                                       3
<PAGE>
 
                                   SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934,
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                 AT HOME CORPORATION


Date:  January 14, 1999          By:  /s/ Kenneth A. Goldman
                                      ----------------------
                                      Kenneth A. Goldman,
                                      Senior Vice President and
                                      Chief Financial Officer

                                       4
<PAGE>
 
                                 EXHIBIT INDEX

2.1   Agreement and Plan of Merger dated December 17, 1998 by and among the
      Company, Transitory Corporation (a wholly owned subsidiary of the Company)
      and Narrative.

2.2   Certificate of Merger as filed on December 30, 1998 with the Secretary of
      State of the State of Delaware.

2.3   Escrow Agreement dated December 30, 1998 by and among the Company, Charles
      M. Hazard, Jr. as representative of the Narrative stockholders and State
      Street Bank and Trust Company of California, N.A., as escrow agent.

2.4   Rights Agreement dated December 30, 1998 by and between the Company and
      each of the Narrative stockholders.

99.1  Press Release issued by the Company on December 18, 1998 announcing the
      agreement by the Company to acquire Narrative.

                                       5

<PAGE>
 
                                                                     EXHIBIT 2.1


                         AGREEMENT AND PLAN OF MERGER


 
                                BY AND AMONG


                             AT HOME CORPORATION,


                            TRANSITORY CORPORATION


                                      AND


                        NARRATIVE COMMUNICATIONS CORP.



                               DECEMBER 17, 1998
                                        
<PAGE>
 
                         AGREEMENT AND PLAN OF MERGER

     THIS AGREEMENT AND PLAN OF MERGER (the "AGREEMENT") is entered into as of
December 17, 1998, by and among At Home Corporation, a Delaware corporation
("ACQUIRER"), Transitory Corporation, a Delaware corporation wholly owned by
Acquirer ("MERGER SUB") and Narrative Communications Corp., a Delaware
corporation ("TARGET").

     WHEREAS, the Boards of Directors of Acquirer, Merger Sub and Target each
have determined that the acquisition of Target by Acquirer is in the best
interests of their respective companies and stockholders, have approved the
Merger and accordingly have agreed to effect the merger provided for herein upon
the terms and subject to the conditions set forth herein;

     WHEREAS, the parties intend that: (a) Acquirer has organized Merger Sub as
a new Delaware corporation and a wholly owned subsidiary of Acquirer; (b) Merger
Sub will merge with and into Target in a reverse triangular merger (the
"MERGER"); and (c) Target will be the surviving corporation (the "SURVIVING
CORPORATION") of the Merger. Upon the effectiveness of the Merger, all the
outstanding capital stock of Target will be converted into capital stock of
Acquirer, and Acquirer will assume all outstanding options and warrants to
purchase shares of Target capital stock. Each of these events will be subject to
and carried out pursuant to the terms and conditions of this Agreement and a
Certificate of Merger substantially in the form of Exhibit A (the "CERTIFICATE
                                                   ---------                  
OF MERGER") and the applicable provisions of the laws of the State of Delaware;

     WHEREAS, the Merger is intended to be treated as: (a) a purchase for
accounting purposes and (b) a tax-free reorganization pursuant to the provisions
of Section 368(a)(1)(A) of the Internal Revenue Code of 1986, as amended (the
"CODE"), by virtue of the provisions of Section 368(a)(1)(A) and Section
368(a)(2)(E) of the Code.

     NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein,
intending to be legally bound hereby the parties to this Agreement agree as
follows:

     1.  CERTAIN DEFINITIONS OF GENERAL TERMS

          1.1  "ACQUISITION PROPOSAL" with respect to an Entity means any
proposal or offer concerning the possible disposition of all or any substantial
portion of Target's business, assets or capital stock by merger, consolidation,
sale of assets or any other means or any other transaction that would involve a
change in control of Target, but excluding (i) a potential working capital
bridge loan facility with Silicon Valley Bank in an aggregate principal amount
not to exceed one million five hundred thousand dollars ($1,500,000) and (ii) a
loan or equity financing not to exceed twelve million dollars ($12,000,000) with
investors with whom Target had commenced discussions on or before November 23,
1998 that will not preclude in any manner the consummation of the Merger and the
transactions contemplated herein.

          1.2  "BEST EFFORTS" shall mean the commercially reasonable efforts
that a prudent business Person desiring to achieve a particular result with
respect to its business would use in order to ensure that such result is
achieved as expeditiously as possible. An obligation to use "Best Efforts" under
this Agreement does not require the Person subject to that obligation to take
actions that would result in a 
<PAGE>
 
Material Adverse Change in the benefits to such Person under this Agreement or
the other Merger Agreements.

          1.3  "CAUSE" shall mean (i) wrongful misappropriation of Acquirer's
assets; (ii) conviction of a felony involving violence, dishonesty, conversion,
theft or misappropriation of property of another, controlled substances, moral
turpitude or regulatory good standing of Acquirer; (iii) drug or alcohol abuse
which prevents employee from substantially performing his duties; or (iv)
refusal to perform, or gross negligence with respect to the performance of, the
duties assigned to him by Acquirer for any reason other than disability;
provided, however, that is such cause is of the type described in clause (iv)
and is susceptible of being cured, employee shall have a period of twenty (20)
days after written notice has been received by employee to effect such cure or
such longer period of time as may required for such cure, provided employee has
commenced such cure within such twenty (20) days and is diligently prosecuting
such cure.

          1.4  "CODE" shall mean the Internal Revenue Code of 1986, as amended.

          1.5  "CONTRACT" shall mean, with respect to any Person, any written or
oral agreement, contract, understanding, arrangement, instrument, note,
guaranty, indemnity, representation, warranty, deed, assignment, power of
attorney, purchase order, work order, insurance policy, benefit plan,
commitment, covenant, obligation, promise or undertaking of any nature to which
such Person is a party or by which its properties or assets may be bound or
affected or under which it or its business, properties or assets receive
benefits. See also "TARGET CONTRACTS".

          1.6  "ENCUMBRANCE" shall mean any lien, pledge, hypothecation, charge,
mortgage, security interest, encumbrance, equity, equitable interest, claim,
preference, right of possession, lease, tenancy, license, encroachment,
covenant, infringement, interference, Order, proxy, option, right of first
refusal, preemptive right, community property interest, defect, impediment,
exception, reservation, limitation, impairment, imperfection of title, condition
or restriction of any nature (including any restriction on the voting of any
security, any restriction on the transfer of any security or other asset, any
restriction on the receipt of any income derived from any asset, any restriction
on the use of any asset and any restriction on the possession, exercise or
transfer of any other attribute of ownership of any asset) other than liens for
Taxes not yet due and payable.

          1.7  "ENTITY" shall mean any corporation (including any non profit
corporation), general partnership, limited partnership, limited liability
partnership, joint venture, estate, trust, cooperative, foundation, society,
political party, union, company (including any limited liability company or
joint stock company), firm or other enterprise, association, organization or
entity.

          1.8  "GAAP" shall mean U.S. generally accepted accounting principles,
applied on a basis consistent with the basis on which the Target Financial
Statements (defined in Section 4.8) were prepared.


          1.9  "INDEMNIFIED PERSON" means any individual or entity that is
indemnified pursuant to Article 11 hereof.

          1.10  "KNOWLEDGE"

                                      -2-
<PAGE>
 
               (a)  An individual shall be deemed to have "Knowledge" of a
                    particular fact or other matter if such individual is after
                    due inquiry actually aware of such fact or other matter.

               (b)  Target shall be deemed to have "Knowledge" of a particular
                    fact or matter only if a director or Key Employee has or had
                    Knowledge of such fact or matter.

          1.11 "LIABILITY" shall mean any debt, obligation, duty or liability
of any nature including any unknown, undisclosed, unmatured, unaccrued,
unasserted, contingent, indirect, conditional, implied, vicarious, derivative,
joint, several or secondary liability, regardless of whether such debt,
obligation, duty or liability would be required to be disclosed on a balance
sheet prepared in accordance with GAAP and regardless of whether such debt,
obligation, duty or liability is immediately due and payable.

          1.12 "MATERIAL ADVERSE CHANGE" and "MATERIAL ADVERSE EFFECT" shall
mean one or more changes in, or effects on, the business, financial condition,
operations, results of operations, assets or liabilities of Acquirer or Target
(as the case may be) that, individually or in the aggregate, results in or would
reasonably be expected to result in a material adverse effect on, or a material
adverse change in, the business, financial condition, operations, results of
operations, assets or liabilities of the affected party taken as a whole.  A
statement in this Agreement that an event or state of affairs "has," "does not
have," "would have," or "would not have" (or similar statements) a Material
Adverse Change or Material Adverse Effect, shall be deemed to mean that such
event or state of affairs both: (a) has (or does not have), does (or does not),
will (or will not), or would (or would not), result in, and/or (b) would (or
would not) reasonably be expected to result in, the consequences described in
the preceding sentence.

          1.13 "MERGER AGREEMENTS" shall include: (a) this Agreement; (b) the
Escrow Agreement; (c) the Rights Agreement; and (d) the Voting Agreement; (e)
the Non-Competition Agreement; (f) the Certificate of Merger and (g) all other
agreements to which at least one party to this Agreement will be a party and
that must be executed pursuant to this Agreement.

          1.14 "ORDER" shall mean any:

               (a)  order, judgment, injunction, edict, decree, ruling,
                    pronouncement, determination, decision, opinion, verdict,
                    sentence, subpoena, writ or award that is issued, made,
                    entered, rendered or otherwise put into effect by or under
                    the authority of any court, administrative agency or other
                    governmental body or any arbitrator or arbitration panel; or

               (b)  Contract with any governmental body that is entered into in
                    connection with any Proceeding.

          1.15 "ORDINARY COURSE OF BUSINESS". An action taken by or on behalf
of Acquirer or Target (as the case may be) shall not be deemed to have been
taken in the "Ordinary Course of Business" unless:

               (a)  such action is consistent with such party's past customary
                    business practices and taken in the ordinary course of such
                    party's normal day to day operations;

                                      -3-
<PAGE>
 
               (b)  such action is not required to be authorized by such party's
                    stockholders, board of directors or any committee of its
                    board of directors and does not require any other separate
                    or special authorization of any nature; and

               (c)  such action is similar in nature and magnitude to actions
                    customarily taken, without any special or separate
                    authorization, in the ordinary course of the normal day to
                    day operations of other entities that are employed in
                    businesses similar to such party's business.

          1.16 "PERMITTED ENCUMBRANCE" shall mean any (i) statutory lien for
taxes, (ii) encumbrance in the nature of zoning restrictions, easements, rights
or restrictions of record on the use of real property if the same do not
materially detract from the value of the property encumbered thereby or
materially impair the use of such property in the Business as currently
conducted or proposed to be conducted, (iii) statutory or common law lien to
secure landlords, lessors or renters under leases or rental agreements confined
to the premises rented, (iv) deposit or pledge made in connection with, or to
secure payment of, worker's compensation, unemployment insurance, old age
pension programs mandated under applicable law or other social security, (v)
statutory or common law liens in favor of carriers, warehousemen, mechanics and
materialmen, statutory or common law liens to secure claims for labor, materials
or supplies and other like liens, and (vi) restrictions on transfer of
securities  imposed by applicable state and federal laws.

          1.17 "PERSON" shall mean any individual, Entity or governmental body.

          1.18 "PROCEEDING" shall mean any action, claim, suit, litigation,
arbitration, proceeding (including any civil, criminal, administrative,
investigative or appellate proceeding and any informal proceeding), prosecution,
contest, hearing, inquiry, inquest, audit, examination or investigation
commenced, brought, conducted or heard by or before any governmental body or any
arbitrator or arbitration panel.

          1.19 "SEC" shall mean the Securities and Exchange Commission.

          1.20 "SECURITIES ACT" shall mean the Securities Act of 1933, as
               amended.

          1.21 "TARGET CONTRACT" shall mean any Contract:


               (a)  to which Target is a party;

               (b)  by which Target or any of its assets is or may become bound
                    or under which Target has or may become subject to any
                    obligation; or

               (c)  under which Target has or may acquire any right or interest.

          1.22 "TARGET STOCKHOLDER" shall mean a holder of shares of Target's
capital stock, including Target Common Stock and Target Preferred Stock (each
defined in Section 4.5) .

          1.23  The definitions of the following defined terms are set forth in
the following Sections:

                                      -4-
<PAGE>
 
Definition                                      Section
- -----------                                     ------- 
Acquirer                                        p.1, Para. 1.
Acquirer Damages                                11.3
Acquirer and Merger Sub Tax                     
  Representations                               8.9
Acquirer Disclosure Package                     5.5         
Acquirer Disclosure Schedule                    5.0         
Acquirer Merger Agreements                      5.2(a)      
Acquisition Proposal                            1.1         
Agreement                                       pg. 1, Para. 1. 
CERCLA                                          4.21(a)         
Best Efforts                                    1.2             
COBRA                                           4.18(h)         
Cause                                           1.3             
Certificate of Merger                           pg. 1, Para. 3  
Closing                                         2.1(a)(i)       
Closing Date                                    2.1(a)(i)       
Closing Price                                   2.2(a)(ii)(A)   
Code                                            pg. 1, Para. 4. 
Code                                            1.4         
Contract                                        1.5         
Conversion Ratio                                2.2(a)(ii)(D)
Damages                                         11.3        
disposal                                        4.21(a)     
DGCL                                            2.2(b)(i)   
D&O Group                                       10.5        
Dissenting Shares                               2.2(b)(i)   
Effective Time                                  2.1(a)(ii)  
Encumbrance                                     1.6         
ERISA                                           4.18(c)     
ERISA Affiliate                                 4.18(c)     
Escrow Agent                                    2.4(a)      
Escrow Agreement                                2.4(a)      
Escrow Percentage                               2.4(b)      
Escrow Period                                   2.4(c)      
Escrow Shares                                   2.4(b)      
Entity                                          1.7         
Exchange Act                                    5.6         
Exchange Agent                                  2.3(a)(i)   
Exchange Option                                 2.2(c)(i)   
Exchange Share                                  2.2(a)(i)   
Final Balance Sheet                             4.8         
Fiscal Year End                                 5.5         
GAAP                                            1.8         
HSR Act                                         3.8         
Hazardous Materials                             4.21(a)     
Information Statement                           6.12(b)     
Intellectual Property Rights                    4.10(a)      

                                      -5-
<PAGE>
 
Indemnified Person                              1.9
Interim Financial Statements                    4.8
Key Employees                                   2.5(c)(i)
Knowledge                                       1.10
Liability                                       1.11
Material Adverse Change                         1.12
Material Adverse Effect                         1.12
Material Target Contracts                       4.16(a)
Merger                                          pg. 1, Para. 3.
Merger Agreements                               1.13
Merger Sub                                      pg. 1, Para. 1.
New Options                                     3.5
New Target Option Plan                          3.5
NDA                                             3.2
Non-Compete Agreements                          3.3(b)
Order                                           1.14
Ordinary Course of Business                     1.15
Permitted Encumbrance                           1.16
Person                                          1.17
Pre-Closing Period                              6.0
Proceeding                                      1.18
release                                         4.21(a)
RS Letter                                       11.2(c)
Restricted Shares                               2.5(c)(i)
Rights Agreement                                2.5(a)(ii)
SEC                                             1.19
SEC Reports                                     5.6
Securities Act                                  1.20
Severance Amount                                3.4(b)
Surviving Corporation                           pg. 1, Para. 3.
Target                                          pg. 1, Para. 1.
Target 401(a) Plan                              4.18(d)
Target Benefit Arrangements                     4.18(e)
Target Certificate of Incorporation             2.2(a)(i)
Target Certificates                             2.3(a)(i)
Target Common Stock                             4.5(a)
Target Contract                                 1.21
Target Contracts                                1.5
Target Damages                                  11.2
Target Disclosure Schedule                      4.0
Target Employee Plans                           4.18(c)
Target Financial Statements                     4.8
Target Information Statement                    6.5
Target IP Rights                                4.10(b)
Target Merger Agreements                        4.2(a)
Target Options                                  4.5(b)
Target Pension Plans                            4.18(d)
Target Preferred Stock                          4.5(a)

                                      -6-
<PAGE>
 
Target Stockholder                              1.22
Target Stockholders Questionnaire               6.12(c)
Target Tax Representations                      9.15
Tax                                             4.14(a)
Taxes                                           4.14(a)
threatened release                              4.21(a)
Total Exchange Shares                           2.2(a)(i)
Total Exchange Shares                           2.2(a)(ii)(B)
Total Target Shares                             2.2(a)(ii)(C)
Trading Window                                  2.5(a)(ii)
Year 2000 Compliant                             4.10(f)


     2.   PLAN OF MERGER

          2.1  The Merger. Subject to the terms and conditions of this
               ----------                                             
Agreement, Merger Sub will merge with and into Target pursuant to this Agreement
and the Certificate of Merger and in accordance with applicable provisions of
the laws of the State of Delaware as follows:

               (a)  Timing of the Merger.
                    -------------------- 

                    (i)  The Closing. Unless this Agreement has first been
                         ----------- 
terminated pursuant to Article 10 hereof, the closing of the transactions
contemplated by this Agreement (the "CLOSING") will take place at the offices of
Fenwick & West LLP, Two Palo Alto Square, Palo Alto, California 94306 at 11:00
a.m., Pacific Standard Time on December 30, 1998, or, if all conditions to
closing have not been satisfied or waived by such date, such other place, time
and date as Target and Acquirer may mutually select (the "CLOSING DATE").

                    (ii) Effective Time of the Merger. The Merger shall become
                         ---------------------------- 
effective once the Certificate of Merger has been properly executed and duly
filed with the Delaware Secretary of State and appropriate evidence of
acceptance for filing has been obtained. This filing shall be made by the
Acquirer concurrently with the Closing. For the purposes of this Agreement, the
term "EFFECTIVE TIME" means the date and time at which such Certificate of
Merger is filed or at such later time as is provided in the Certificate of
Merger.

               (b)  Effects of the Merger. At the Effective Time: (i) Merger Sub
                    ---------------------
will merge with and into Target, Target will be the Surviving Corporation and
the separate existence of Merger Sub will thereupon cease; (ii) each share of
common stock of Merger Sub outstanding immediately prior to the Effective Time
will convert into one share of common stock of the Surviving Corporation; (iii)
the certificate of incorporation and bylaws of Merger Sub as of the Effective
Time will become the certificate of incorporation and bylaws of the Surviving
Corporation; (iv) the directors of Merger Sub immediately prior to the Effective
Time will become the directors of the Surviving Corporation; (v) the officers of
Merger Sub immediately prior to the Effective Time will become the officers of
the Surviving Corporation; (vi) each share of Target Common Stock and Target
Preferred Stock (each defined in Section 4.5) and each Target Option (defined in
Section 4.5) outstanding immediately prior to the Effective Time will be
converted as provided in Section 2.2; and (vii) the Merger will, from and after
the Effective Time, have all of the effects provided by applicable law.

          2.2  Conversion of Shares and Options.
               -------------------------------- 

                                      -7-
<PAGE>
 
               (a)  Conversion of Shares.
                    -------------------- 

                    (i)  Overall Agreement. In connection with the Merger and
                         ----------------- 
pursuant to the provisions of this Agreement and the Merger Agreements, Acquirer
will issue a certain number of fully paid and nonassessable shares of Acquirer
Series A Common Stock (the "TOTAL EXCHANGE SHARES," and each share individually,
an "EXCHANGE SHARE") in exchange for all of the capital stock of Target
outstanding immediately prior to the Effective Time. All shares of Target
Preferred Stock outstanding immediately prior to the Effective Time will have
been converted to Target Common Stock at the then-applicable conversion ratio
defined in the Amended and Restated Certificate of Incorporation of Target,
attached as Exhibit B (the "TARGET CERTIFICATE OF INCORPORATION"). Each share of
            ---------
Target Common Stock owned by Target immediately prior to the Effective Time
shall be canceled and extinguished without any conversion pursuant to this
Section 2.2.

                    (ii)  Conversion Formula. Each share of Target Common Stock
                          ------------------
outstanding immediately prior to the Effective Time, including the shares into
which Target Preferred Stock are converted and excluding any Dissenting Shares
(as defined in Section 2.2(b)), by virtue of the Merger and at the Effective
Time, without further action on the part of any Target Stockholder, will be
converted solely into the right to receive a fraction of an Exchange Share equal
to the Conversion Ratio. For the purposes of calculating the Conversion Ratio,
and as used elsewhere in this Agreement, the following definitions apply:

                          (A)  the "CLOSING PRICE" shall equal the average
closing price (in U.S. dollars) of one share of Acquirer Series A Common Stock
as quoted on the Nasdaq National Market over the fifteen (15) trading days
immediately prior to the Closing Date; provided, however, that if such average
closing price is higher than $55.67, then the Closing Price shall equal $55.67
and if such average closing price is lower than $48.45, then the Closing Price
shall equal $48.45;

                          (B)  the "TOTAL EXCHANGE SHARES" shall be that number
of shares of Acquirer Series A Common Stock equal to one million four hundred
forty thousand (1,440,000), multiplied by the quotient equal to $52.06 divided
by the Closing Price, rounded to the nearest whole share.

                          (C)  the "TOTAL TARGET SHARES" equals (not including
treasury shares) the sum of: (1) the total number of shares of Target Common
Stock outstanding immediately prior to the Effective Time; (2) the total number
of shares of Target Common Stock issuable upon conversion of all outstanding
shares of Target Preferred Stock immediately prior to the Effective Time at the
applicable conversion ratio pursuant to the provisions of the Target Certificate
of Incorporation; and (3) the total number of shares of Target Common Stock
issuable upon exercise of all Target Options (other than the New Options which
shall be excluded from the calculation) outstanding immediately prior to the
Effective Time; and

                          (D)  the "CONVERSION RATIO" equals the Total Exchange
Shares divided by the Total Target Shares.

                    (iii) Adjustment for Capital Changes. If, prior to the
                          ------------------------------ 
Effective Time, Acquirer or Target recapitalizes through a split-up of its
outstanding shares into a greater number, or a combination of its outstanding
shares into a lesser number, reorganizes, reclassifies or otherwise changes its
outstanding shares into the same or a different number of shares of other
classes (other than through a split-up or combination of shares provided for in
the previous clause), or declares a dividend on its

                                      -8-
<PAGE>
 
outstanding shares payable in shares or securities convertible into shares, the
Total Exchange Shares will be adjusted appropriately so as to maintain the
proportionate interests of the Target Stockholders and the holders of Acquirer
Series A Common Stock at the time of such recapitalization.

                    (iv) Fractional Shares. No fractional shares of Acquirer
                         ----------------- 
Series A Common Stock will be issued in connection with the Merger. However, in
lieu thereof, each Target Stockholder who would otherwise be entitled to receive
a fraction of an Exchange Share (excluding with respect to Target Options) will
receive from Acquirer an amount of cash equal to the Closing Price multiplied by
the fraction of an Exchange Share to which such holder would otherwise be
entitled.

               (b)  Dissenting Shares.
                    ----------------- 

                    (i)   For each Target Stockholder who exercises appraisal
rights with respect to shares of Target capital stock in accordance with Section
262(d) of the Delaware General Corporation Law ("DGCL") and, as of the Effective
Time, has not lost or effectively withdrawn such appraisal rights, such Target
shares ("DISSENTING SHARES") will not be converted into or represent a right to
receive the consideration described in Section 2.2(a). Instead, each holder of
Dissenting Shares will be entitled only to such rights as are granted by Section
262 of the DGCL. The Exchange Shares to which such dissenting Target
Stockholders would have been entitled had each assented to the merger will have
the status of authorized and unissued shares of Acquirer.

                    (ii)  For each Target Stockholder who demands appraisal
rights with respect to such shares, but subsequently loses (through the failure
to perfect or otherwise) or effectively withdraws such demand for appraisal
rights in accordance with Section 262 of the DGCL, such holder's shares shall,
as of the Effective Time (or, if after the Effective Time, upon the occurrence
of such event) automatically be converted into and represent only the right to
receive the consideration described in Section 2.2(a) upon surrender of the
applicable certificate(s) as provided in Section 2.3.

                    (iii) Target shall comply with the notice and other
procedural requirements set forth in Section 262(d)(2) of the DGCL with respect
to any Target Stockholder who demands appraisal rights for such Target shares
and has not lost or effectively withdrawn such demand for appraisal rights.
Acquirer shall have the opportunity to participate in all negotiations and
proceedings with respect to such demands. Target shall not, except with the
prior written consent of Acquirer, voluntarily make any payment with respect to
any demands for the exercise of appraisal rights or offer to settle or settle
any such demands.


               (c)  Assumption of Options and Warrants.
                    ---------------------------------- 

                    (i)  Target Options. Each Target Option (defined in Section
                         --------------
4.5) that is outstanding immediately prior to the Effective Time, by virtue of
the Merger at the Effective Time and without further action on the part of any
Target Stockholder or holders of Target Options, will be assumed by Acquirer and
converted into a corresponding option or warrant (an "EXCHANGE OPTION") to
purchase that number of Exchange Shares which equals the number of shares of
Target Common Stock subject to such Target Option at the Effective Time
multiplied by the Conversion Ratio, rounded down to the nearest whole share. The
per share exercise price for each Exchange Option will equal the per share
exercise price of each such Target Option immediately prior to the Effective
Time divided by the Conversion Ratio, rounded up to the nearest whole cent.

                                      -9-
<PAGE>
 
                    (ii) Terms of Assumption of Stock Options and Warrants. The
                         -------------------------------------------------
term, exercisability, vesting schedule, status as an "incentive stock option"
under Section 422 of the Code, if applicable, and all other terms of the Target
Options will otherwise be unchanged. No Target Options will be accelerated as a
result of the merger, except as described on Schedule 2.2. Continuous employment
with Target will be credited to holders of Target Options for purposes of
determining the number of shares subject to exercise after the Effective Time.

          2.3  Exchange of Shares.
               ------------------ 

               (a)  Procedures.
                    ---------- 

                    (i)   Prior to the Closing, Acquirer will designate an
exchange agent (the "EXCHANGE AGENT"). On the Closing Date, Acquirer will
deposit with the Exchange Agent the Exchange Shares, to be held by the Exchange
Agent until released as provided herein. Acquirer shall cause to be mailed to
each holder of record of a certificate(s) for shares of Target capital stock
(the "TARGET CERTIFICATES"): (A) a letter of transmittal (which shall specify
that delivery shall be effected, and risk of loss and title to the Target
Certificates shall pass, only upon delivery of the Target Certificates to the
Exchange Agent), and (B) instructions for use in effecting the surrender of the
Target Certificates in exchange for certificates representing Exchange Shares.
At the Effective Time or promptly thereafter, each Target Stockholder will
surrender the Target Certificates, duly endorsed as requested by Acquirer, to
the Exchange Agent for cancellation. Promptly after the later of the Effective
Time or the date of receipt of such Target Certificates by the Exchange Agent,
the Exchange Agent will issue to each tendering holder (excluding holders of
Dissenting Shares) a certificate for the Exchange Shares to which such holder is
entitled pursuant to Section 2.2(a), less the Escrow Shares (defined in Section
2.4) to be deposited into escrow on behalf of such holder pursuant to Section
2.4, and distribute any cash payable under Section 2.2(a)(iv).

                    (ii)  At the Effective Time, the stock transfer books of
Target will be closed and no transfer of shares of Target capital stock will
thereafter be made. If, after the Effective Time, Target Certificates are
presented for any reason, they will be canceled and exchanged as provided in
this Section 2.3; provided, however, that subject to applicable law any Target
Certificate that is not properly submitted to Acquirer for exchange and
cancellation within six years after the Effective Time shall no longer evidence
ownership of or any right to receive shares of Acquirer Series A Common Stock
and all rights of the holder of such Target Certificate, with respect to the
shares previously evidenced by such Target Certificate, shall cease.

                    (iii) All Exchange Shares delivered upon the surrender of
Target Certificates in accordance with the terms hereof will be deemed to have
been delivered in full satisfaction of all rights pertaining to the Target
Common Stock evidenced by such Target Certificates.

               (b)  Unexchanged Shares.
                    ------------------ 

                    (i)  Until Target Certificates outstanding prior to the
Merger are surrendered pursuant to Section 2.3(a) above, such Target
Certificates will be deemed, for all purposes, to evidence ownership of the
number of Exchange Shares into which the Target Common Stock will have been
converted (less the number of shares to be withheld as Escrow Shares pursuant to
Section 2.4).

                    (ii) In the event any Target Certificates shall have been
lost, stolen or destroyed, the Exchange Agent shall issue in exchange for such
Target Certificates, upon the making 

                                      -10-
<PAGE>
 
of an affidavit of that fact by the holder of such Target Certificates, such
Exchange Shares and cash for a fractional share, if any, pursuant to Section
2.2; provided, however, that Acquirer may, in its discretion and as a condition
precedent to issuance of Exchange Shares, require the owner of such lost, stolen
or destroyed Target Certificates to deliver a bond in a reasonable sum as
indemnity against any claim that may be made against Acquirer or the Exchange
Agent with respect to the Target Certificates alleged to have been lost, stolen
or destroyed.

          (c) Payment of Dividends. No dividends or distributions payable to
              --------------------                                          
holders of record of Acquirer Series A Common Stock after the Effective Time, or
cash payable in lieu of fractional shares, will be paid to holders of any
unsurrendered Target Certificates until such holders surrender their Target
Certificates. Upon such surrender of any Target Certificate, subject to the
effect, if any, of applicable escheat and other laws, there will be delivered to
such tendering holder the amount of any dividends and distributions paid with
respect to Exchange Shares so withheld as of any date subsequent to the
Effective Time and prior to such date of delivery, less any stock dividends for
Escrow Shares that are issued in order to effect a stock split of Acquirer's
Series A Common Stock (which shall be held until the Escrow Shares are
released). Except for the Escrow Shares, no other interest shall be paid on any
such dividends withheld.

          (d) Miscellaneous.
              ------------- 

              (i)   If any certificates for Exchange Shares are to be issued in
a name other than that in which the Target Certificate surrendered in exchange
therefor is registered, the following shall be conditions of such exchange: (A)
the Target Certificate must be properly endorsed and otherwise in proper form
for transfer, and (B) the Person requesting such exchange shall either pay to
the Exchange Agent any transfer or other taxes required by reason of the
issuance of certificates for such Exchange Shares in a name other than that of
the registered holder of the Target Certificate surrendered or establish to the
satisfaction of the Exchange Agent that such tax has been paid or is not
applicable.

              (ii)  Notwithstanding anything in this Agreement to the contrary,
neither the Exchange Agent nor any party hereto shall be liable to a Target
Stockholder for any Exchange Shares or dividends thereon or the cash payments
otherwise due hereunder delivered to a public official pursuant to applicable
abandoned property, escheat or other similar laws following the passage of time
specified therein.

     2.4  Escrow.
          ------ 

          (a) Escrow Agent. State Street Bank or an escrow agent selected by
              ------------                                                  
Acquirer prior to the closing and reasonably satisfactory to Target (the "ESCROW
AGENT") shall hold, release and perform other tasks related to the Escrow Shares
(defined in Section 2.4(b)) pursuant to the provisions of an escrow agreement
(the "ESCROW AGREEMENT") in substantially the form attached as Exhibit C.
                                                               --------- 

          (b) Escrow Shares. At the Effective Time Acquirer will withhold a
              -------------                                                
percentage (the "ESCROW PERCENTAGE") of shares from the number of the Exchange
Shares to be issued to each Target Stockholder upon surrender of his or her
Target Certificates, rounded down to the nearest whole number of shares to be
issued to such Target Stockholder (the "ESCROW SHARES"). The Escrow Percentage
shall be expressed as a fraction, the numerator of which is ten percent (10%) of
the Total Exchange Shares and the denominator of which is the number of Exchange
Shares actually issuable in the Merger to Target Stockholders at the Effective
Time. Stock Dividends that are issued in order to 

                                      -11-
<PAGE>
 
effect a stock split of Acquirer's Series A Common Stock on Escrow Shares
declared during the Escrow Period shall also be held in escrow until such Escrow
Shares are released. Acquirer will deliver to the Escrow Agent certificates
representing the Escrow Shares issued in the name of each holder of Exchange
Shares.

          (c) Escrow Period. The Escrow Agent will hold the Escrow Shares and
              -------------                                                  
dividends as collateral for Target's indemnification obligations and release
shares to satisfy valid claims, all pursuant to the Escrow Agreement and Article
11 of this Agreement. The Escrow Agent will continue to hold Escrow Shares and
dividends not released in satisfaction of claims until the end of the Escrow
Period. For the purposes of this Agreement, the "ESCROW PERIOD" means that time
period beginning at the Effective Time and ending ten (10) business days after
publication of (but in any event no later than March 31, 2000) audited
consolidated financial statements of Acquirer for the fiscal year ended December
31, 1999.

     2.5  Securities Law Compliance; Additional Restrictions on Resale.
          ------------------------------------------------------------ 

          (a) Issuance of Exchange Shares; Resale of Exchange Shares.
              ------------------------------------------------------ 

              (i)  Private Placement. The parties to this Agreement intend that
                   -----------------                                           
Acquirer shall issue the Exchange Shares pursuant to a "private placement" under
Regulation D and/or Section 4(2) of the Securities Act and applicable state
securities laws. The Exchange Shares shall constitute "restricted securities"
within the meaning of the Securities Act. The certificates for Exchange Shares
to be issued in the Merger shall bear appropriate legends to identify such
privately placed shares as being restricted under the Securities Act, to comply
with applicable state securities laws, and, if applicable, to notice the
restrictions on transfer set forth in Section 2.5(c) below. Target shall furnish
Acquirer with all information concerning Target and the Target Stockholders as
may be reasonably requested in connection with any action contemplated by this
Section 2.5. Target shall further assist Acquirer by carrying out the covenants
in Section 6.12.

              (ii) S-3 Registration.  Pursuant to the terms of the Rights
                   ---------------- 
 Agreement in substantially the form attached as Exhibits D (the "Rights
Agreement"), Acquirer shall file with the SEC a shelf registration statement on
Form S-3 to provide for the resale of the Exchange Shares held by the Target
Stockholders entering into the Rights Agreement. Acquirer will use its Best
Efforts to cause the registration statement to become effective on or before the
first day of Acquirer's first normal quarterly trading window ("TRADING WINDOW")
of 1999, which is expected to occur during the last week of January 1999, and
will keep such registration statement effective for a period of one year after
the Effective Time, subject to Acquirer's Trading Windows and in accordance with
the terms and conditions of the Rights Agreement.

          (b) Resale of Shares Issued Pursuant to Exchange Options and New
              ------------------------------------------------------------
Options. Acquirer shall cause the Exchange Shares that are issuable upon
- -------                                                                 
exercise of the Exchange Options and New Options to be registered under the
Securities Act on Form S-8 or any other applicable form, including if necessary
a "wrap" S-8/S-3, within one hundred eighty (180) days after the Closing Date.
Target will use its Best Efforts to cooperate with Acquirer in the preparation
of the Form S-8. Acquirer will use diligent good faith efforts to maintain the
effectiveness of such registration statement so long as the Exchange Options and
New Options (or shares issued upon exercise thereof) remain outstanding. Holders
of Exchange Shares and Shares received pursuant to the exercise of Exchange
Options and New Options will be wholly responsible for compliance with all
federal and state securities laws regarding such shares.

                                      -12-
<PAGE>
 
          (c) Additional Restrictions on Resale.
              --------------------------------- 

              (i)  Key Employees.  Pursuant to the terms of the Rights 
                   ------------- 
Agreement, Target employees listed on Schedule 2.5 hereto (each, a "KEY
EMPLOYEE") shall not sell the Exchange Shares that each receives in exchange for
outstanding Target capital stock pursuant to the Merger until the date that is
three years after the Closing Date, except that: (A) each Key Employee may sell
up to twenty-five percent (25%) of the total of such Key Employee's Exchange
Shares and shares purchasable upon the exercise of Exchange Options that are
vested as of the Effective Time (collectively, the "RESTRICTED SHARES") from the
Effective Time until the date that is one year after the Effective Time, (B)
each Key Employee may sell up to another twenty-five percent (25%) of his or her
Restricted Shares after the date that is one year after the Effective Time if
such Key Employee is still employed by Acquirer or Target one year after the
Effective Time; and (C) each Key Employee may sell the remaining fifty percent
(50%) of his or her Restricted Shares after the date that is two years after the
Effective Time if such Key Employee is still employed by Acquirer or Target two
years after the Effective Time. If a Key Employee's employment with Target or
Acquirer terminates, then the restrictions on resale of the Restricted Shares
set forth in this Section 2.5(c)(i) shall no longer apply to that Key Employee
as of the date of such termination if either: (1) the Key Employee was
terminated without Cause by Acquirer or Target; (2) the Key Employee's
responsibilities were substantially reduced and the Key Employee was not offered
another position with a span of responsibilities similar to his or her current
responsibilities; or (3) the Key Employee was to be relocated by Acquirer to a
location more than one hundred (100) miles from such Key Employee's then
existing location and the Key Employee declined to relocate.

              (ii) Holders of Target Preferred Stock. Pursuant to the terms and
                   ---------------------------------                           
conditions of the Rights Agreement, each holder of Target Preferred Stock as of
the date of this Agreement shall not sell more than fifty percent (50%) of the
Exchange Shares that each receives in exchange for his or her Target Preferred
Stock before February 15, 1999. Regarding each such holder's remaining Exchange
Shares: (A) during the period from February 15, 1999 until the first anniversary
of the Closing Date, each such holder may sell any remaining Exchange Shares
during any normal Trading Window as such trading policy was previously disclosed
to Target, and (B) on or after the date that is one year after the Closing Date,
each holder may sell any remaining Exchange Shares at any time, except that all
sales of shares remain subject to any other applicable federal and state
securities laws restrictions, if any, including without limitation the volume
and manner of sale restrictions imposed by Rule 144 of the Securities Act.

          2.6 Tax and Accounting Aspects of the Merger.
              ---------------------------------------- 

              (a) Tax Free Reorganization. The parties intend to adopt this
                  -----------------------                                  
Agreement as a tax-free plan of reorganization and to consummate the Merger in
accordance with the provisions of Section 368(a)(1)(A) and Section 368(a)(2)(E)
of the Code. The parties to this Agreement hereby adopt this Agreement as a
"plan of reorganization" within the meaning of Sections 1.368-2(g) and 1.368-
3(a) of the United States Treasury Regulations. The value of the Exchange Shares
and Exchange Options to be received in the Merger is approximately equal, in
each instance, to the value of the Target Common Stock and Target Options to be
surrendered in exchange therefor. The Exchange Shares issued in the Merger will
be issued solely in exchange for the Target Common Stock or upon exercise of
Exchange Options, and no other transaction other than the Merger represents,
provides for or is intended to be an adjustment to, the consideration paid for
the Target Common Stock. Except for any cash paid in lieu of fractional shares,
no consideration that could constitute "other property" within the meaning of
Section 356 of the Code is being paid by Acquirer for the Target Common Stock in
the Merger. The parties shall treat the Merger as a tax-free reorganization
described in Section 368(a)(2)(E) of the Code and shall not 

                                      -13-
<PAGE>
 
take any position on any tax returns or for any federal income tax purposes that
is inconsistent with such treatment or is inconsistent with this Section 2.6(a).
In addition, Acquirer will, after the Closing continue Target's historic
business or use a significant portion of Target's business assets in a business.
Acquirer and Merger Sub do not have a present intent following the Merger to
cause Target to issue additional shares of its stock that would result in
Acquirer losing control of Target within the meaning of Section 368(c) of the
Code. Acquirer has no current plan or intention to liquidate Target, to merge
Target with or into another corporation, to sell or otherwise to dispose of the
stock of Target, or to cause Target to sell or otherwise to dispose of any of
the assets of Target. Acquirer will not in connection with the Merger redeem its
stock furnished in exchange for Target stock. Persons related to Acquirer
(within the meaning of Treas. Reg. Section 1.368-1(e)(3)) will not acquire in
connection with the Merger, for consideration other than Acquirer stock, either
Target stock or Acquirer stock furnished in exchange for Target stock. Merger
Sub will acquire at least 90 percent of the fair market value of the net assets
and at least 70 percent of the fair market value of the gross assets held by
Target immediately prior to the Merger. Prior to the Merger, Acquirer will be in
control of Merger Sub within the meaning of Section 368(c) of the Code. Acquirer
has no plan or intention to reacquire any of its stock issued in the Merger.
Acquirer, Merger Sub, the Target and the stockholders of the Target will pay
their respective expenses, if any, incurred in connection with the Merger. The
payment of cash in lieu of fractional shares of Acquirer stock is solely for the
purpose of avoiding the expense and inconvenience to Acquirer of issuing
fractional shares and does not represent separately bargained for consideration.
The total cash consideration that will be paid in the transaction to
stockholders of the Target instead of issuing fractional shares of Acquirer
stock will not exceed one percent of the total consideration that will be issued
in the transaction to the stockholders of the Target in exchange for their
shares of stock of the Target. The fractional share interests of each
stockholder of the Target will be aggregated, and no stockholder of the Target
will receive cash in an amount equal to or greater than the value of one full
share of Acquirer stock. None of the compensation received by any stockholder of
the Target will be separate consideration for, or allocable to, any of their
shares of the Target stock; none of the shares of Acquirer stock received by any
stockholder of the Target will be separate consideration for, or allocable to,
any services, and the compensation paid to any stockholder of the Target will be
for services actually rendered and will be commensurate with amounts paid to
third parties bargaining at arm's length for similar services. Merger Sub does
not have any liabilities nor are any of its assets subject to any liabilities.
At the Closing, officers of each of Acquirer, Merger Sub and Target shall
execute and deliver tax representation certificates in the forms of Exhibit E-1
                                                                    -----------
and E-2. The provisions and representations contained or referred to in this
    ---                
Section 2.6(a) shall survive until the expiration of the applicable statute of
limitations.

               (b) Accounting. The parties intend that the Merger be treated as
                   ----------                                                  
a purchase for accounting purposes.

     3.  ADDITIONAL AGREEMENTS

         3.1   Public Announcement.
               ------------------- 

               (a) Target shall make no public disclosure regarding the
negotiation of the Merger without the prior written consent of Acquirer.
Acquirer shall make no public disclosure regarding the negotiation of the Merger
unless, in the reasonable opinion of Acquirer's counsel after consultation with
Target's counsel, such disclosure is required by law, in which event Target
shall have a reasonable opportunity to comment on any public disclosure before
it is made. Acquirer and Target will cooperate to prepare a joint press release
after the date of this Agreement.

                                      -14-
<PAGE>
 
               (b) Target shall take reasonable actions necessary to avoid any
trading in Acquirer equity securities by Target's directors, officers, employees
and agents that would be based on material nonpublic information, that relates
to the proposed Merger or that was learned in the due diligence process.

          3.2  Confidentiality. Target and Acquirer each recognize that they
               ---------------                                              
have received and will receive confidential information concerning the other
during the course of the Merger negotiations, preparations and due diligence.
Accordingly, Acquirer and Target each: (a) shall use its respective Best Efforts
to prevent the unauthorized disclosure of any confidential information
concerning the other that was or is disclosed during the course of such
negotiations, preparations and due diligence; and (b) shall not make use of or
permit to be used any such confidential information other than for the purpose
of effectuating the Merger and related transactions. The obligations of this
section will not apply to information that: (a) is or becomes part of the public
domain other than by fault of the receiving party; (b) is disclosed by the
disclosing party to third parties without restrictions on disclosure; (c) is
received by the receiving party from a third party without breach of a
contractual or fiduciary nondisclosure obligation to the other party; or (d) is
required to be disclosed by law. If this Agreement is terminated, all copies of
documents containing confidential information shall be returned by the receiving
party to the disclosing party.  In addition to this paragraph 3.2, the
provisions of the Mutual Nondisclsoure Agreement executed by the parties in
December 1998 (the "NDA") will apply.  To the extent there is a contradiction or
ambiguity between this Agreement and the NDA, the terms of this Agreement shall
control.

          3.3  Non-Competition and Non-Solicitation Agreements.
               ----------------------------------------------- 

               (a) All Employees. Target represents and warrants to Acquirer 
                   -------------  
that it has entered into agreements in the form attached hereto as Exhibit F-1
                                                                   -----------
with each of its employees not to compete with Target for a period of one (1)
year following the termination of employment with Target for any reason and that
such agreements will remain in effect following the Merger. For the purposes of
such agreements, if any such employees become employees of Acquirer as a direct
result of the Merger, such events shall not constitute termination of employment
with Target.

               (b) Additional Agreements with Key Employees. The parties shall
                   ----------------------------------------
use their respective Best Efforts to have each Key Employee execute agreements
with Acquirer, in substantially the form attached as Exhibit F-2, to the effect
                                                     -----------
that each Key Employee will not: (i) solicit employees of Target or Acquirer to
terminate their employment with Target or Acquirer; (ii) compete in the field of
Internet advertising technology; or (iii) provide employment, consulting or
other services to America Online, Inc., each for a period of two years after the
Effective Time (the "NON-COMPETE AGREEMENTS").

          3.4  Severance.
               --------- 

               (a) Key Employees. For each Key Employee: (i) whose employment is
                   -------------                                                
terminated by Acquirer without Cause, (ii) whose position is eliminated and the
Key Employee is not offered a position with a span of responsibilities similar
to his or her former responsibilities, or (iii) whose employment ceases after
Acquirer attempts to relocate such Key Employee to a location more than one
hundred (100) miles from such Key Employee's then existing location within a
period of two years after the Effective Time and such Key Employee declines to
relocate, Acquirer shall pay such Key Employee at the option of the Key
Employee: (A) his or her salary, as of the date of such termination, on the
normal pay schedule, through the date that is one year after the Closing Date,
or (B) the amount such Key Employee would receive as an employee under Section
3.4(b); provided, however, that Acquirer 
        --------  -------                                                   

                                      -15-
<PAGE>
 
may choose at any time, without the consent of any other party, to waive the 
Non-Compete Agreement with such Key Employee and from the date such agreement is
waived Acquirer will no longer be liable to such Key Employee for amounts
described in this Section 3.4(a).

          (b)  Other Employees. For each Target employee (or former Target
               ---------------                                            
Employee who becomes an employee of Acquirer in connection with of the Merger)
whose employment with Target or Acquirer ceases within one year after the
Closing Date and: (i) whose employment was eliminated specifically as a result
of the Merger, (ii) whose position was eliminated and such employee was not
offered a position with a span of responsibilities similar to his or her former
responsibilities, or (iii) whose employment was relocated to a location more
than one hundred (100) miles from such employee's existing location by Acquirer
or Target and such employee refused to relocate, Acquirer shall pay each such
employee a "SEVERANCE AMOUNT." If such employee had been continuously employed
by Target for at least six months prior to the Closing Date, the Severance
Amount shall be equal to two times the employee's then current monthly salary as
of the date of termination plus an additional month of salary for each full year
that such employee had been continuously employed by Target and/or Acquirer. If
such employee had not been continuously employed by Target for at least six
months prior to the Closing Date, the Severance Amount shall be equal to one
month of the employee's then current monthly salary as of the date of
termination.

          3.5  New Options. Before the Closing Date, at the request and
               -----------                                             
direction of Acquirer, Target shall adopt a new stock option plan (the "NEW
TARGET OPTION PLAN") in the form attached hereto as Exhibit G and reserve the
                                                    ---------                
number of shares of Target Common Stock which will equal 450,000 shares of
Acquirer Series A Common Stock (after giving effect to the Conversion Ratio) for
issuance thereunder, which stock option plan will be assumed by Acquirer in the
Merger. At the Effective Time Acquirer will assume the New Target Option Plan,
and promptly thereafter Acquirer shall grant the numbers of options to purchase
Acquirer Series A Common Stock ("NEW OPTIONS") listed on Schedule 3.5 to the
Target employees listed on Schedule 3.5.

          3.6  Listing of Exchange Shares. Acquirer shall cause the Exchange
               --------------------------                                   
Shares and shares issuable upon exercise of Exchange Options and New Options to
be authorized for listing on The Nasdaq National Market.

          3.7  Fees and Expenses. Each party will be responsible for its own
               -----------------                                            
fees and expenses incurred in connection with the Merger; provided, however,
that promptly after the Closing, Acquirer will pay the reasonable legal and
accounting fees incurred by Target with respect to the Merger Agreements and the
transactions contemplated hereby.

          3.8  Antitrust Law Compliance. If required, as promptly as
               ------------------------                             
practicable, Target and Acquirer shall make all filings and submissions under
the Hart-Scott Rodino Antitrust Improvements Act of 1976, as amended (the "HSR
ACT") as may be reasonably required to be made in connection with the Merger and
the Merger Agreements. Each party will furnish to the other such information and
assistance as the other may reasonably request in connection with the
preparation of any such filings or submissions. Each party will furnish the
other with copies of all correspondence, filings or communications (or memoranda
setting forth the substance thereof) between such party and any governmental
body with respect to the Merger and the Merger Agreements, except to the extent
that either party is advised by independent counsel that the provision of such
information would be inadvisable under applicable antitrust laws.

                                      -16-
<PAGE>
 
          3.9   Integration Matters. Target and Acquirer will cooperate in good
                -------------------                                            
faith to identify and, to the extent practicable, to resolve matters regarding
the orderly integration of their respective operations, including matters
relating to acceptable positions with Acquirer for Key Employees and the
retention of other Target employees who will remain after the Merger.

          3.10  Further Assurances. If, at any time before or after the
                ------------------                                     
Effective Time, Acquirer considers or is advised that any further deeds,
assignments or assurances are reasonably necessary or desirable to vest, perfect
or confirm in Acquirer title to any property or rights of Target or the
Surviving Corporation, Acquirer, Target, the Surviving Corporation and their
proper officers and directors are authorized and shall use their Best Efforts to
execute and deliver all such proper deeds, assignments and assurances and do all
other things necessary or desirable to vest, perfect or confirm title to such
property or rights in Acquirer and otherwise to carry out the purpose of this
Agreement.

     4.   REPRESENTATIONS AND WARRANTIES OF TARGET

          Except as specifically set forth in the disclosure letter provided by
Target to Acquirer simultaneously with the signing of this Agreement, dated as
of the date of this Agreement (the "TARGET DISCLOSURE SCHEDULE"), the parts of
which are numbered to correspond to the section numbers of this Agreement,
Target hereby represents and warrants to Acquirer and Merger Sub as follows:

          4.1  Organization and Good Standing. Target is a corporation duly
               ------------------------------                              
organized, validly existing and in good standing under the laws of Delaware and
is qualified as a foreign corporation in each jurisdiction in which a failure to
be so qualified would reasonably be expected to have a Material Adverse Effect.
Section 4.1 of the Target Disclosure Schedule sets forth a true and complete
list of each jurisdiction in which Target has employees or owns or leases
property and of each jurisdiction in which Target is qualified to do business.

          4.2  Power, Authorization and Validity.
               --------------------------------- 

               (a) Target has the right, power, legal capacity and authority:
(i) to carry on its business as now conducted and as proposed to be conducted;
(ii) to own, use and lease its properties in the manner in which its properties
are currently owned, used and leased and in the manner in which its properties
are proposed to be owned, used and leased; (iii) to perform its obligations
under all Target Contracts; and (iv) subject to stockholder approval of this
Agreement and the Merger, to enter into and perform its obligations under this
Agreement and all other agreements to which Target is or will be a party that
are required to be executed pursuant to this Agreement (collectively with this
Agreement, the "TARGET MERGER AGREEMENTS"). The execution, delivery and
performance of the Target Merger Agreements have been duly and validly approved
and authorized by Target's Board of Directors and Target's Board of Directors
has determined to recommend that the Target Stockholders approve and adopt this
Agreement and the Merger. Target Stockholders holding a sufficient number of
shares to approve this Agreement and the Merger have executed a Voting Agreement
in the form attached hereto as Exhibit H.
                               --------- 

               (b) No filing, authorization or approval with any governmental
body, is necessary to enable Target to enter into and perform its obligations
under the Target Merger Agreements, except for: (i) the filing of the
Certificate of Merger with the Delaware Secretary of State and the filing of
appropriate documents with the relevant authorities of other states in which
Target is qualified to do business, if any; (ii) such filings as may be required
to comply with federal and state securities laws; (iii) approval by the Target
Stockholders of the transactions contemplated hereby; and (iv) consents required

                                      -17-
<PAGE>
 
under Contracts disclosed in Section 4.16 of the Target Disclosure Schedule as
exceptions to the representations made in Section 4.16 of this Agreement.

          (c) The Target Merger Agreements are, or when executed by Target will
be, valid and binding obligations of Target enforceable in accordance with their
respective terms, except as to the effect, if any, of: (i) applicable bankruptcy
and other similar laws affecting the rights of creditors generally; (ii) rules
of law governing specific performance, injunctive relief and other equitable
remedies; and (iii) the enforceability of provisions requiring indemnification;
provided, however, that the Certificate of Merger will not be effective until
filed with the Delaware Secretary of State.

     4.3  No Violation of Existing Agreements. Neither the execution and 
          -----------------------------------                           
delivery of any of the Target Merger Agreements, nor the consummation of the
transactions contemplated hereby, will conflict with or (with or without notice
and/or lapse of time) result in a termination, breach, impairment or violation
of: (a) any provision of the Target Certificate of Incorporation, Target bylaws
or other charter documents, as currently in effect; (b) in any material respect,
any material Target Contract; or (c) any federal, state, local or foreign Order,
statute, rule or regulation applicable to Target or its assets or properties the
violation of which would have a Material Adverse Effect. The consummation of the
Merger and the transfer to Acquirer of all of Target's material rights,
licenses, franchises, leases and Target Contracts will not require the consent
of any third party.

     4.4  Corporate Documents.
          ------------------- 

          (a) Target has made available to Acquirer for examination complete and
accurate copies of all documents and information listed in the Target Disclosure
Schedule and in the possession of Target or other Exhibits called for by this
Agreement, including, without limitation, the following: (i) the Target
Certificate of Incorporation, Target bylaws or other charter documents, as
currently in effect; (ii) Target's minute book containing all records of all
proceedings, consents, actions and meetings of the stockholders, the Board of
Directors and any committees of the Board of Directors; (iii) its stock ledger
and journal reflecting all stock issuances, transfers and all other stock
records; and (iv) all permits, Orders and consents issued by any regulatory
agency with respect to Target, or any securities of Target, and all applications
for such permits, Orders and consents.

          (b) There has not been any violation of any of the provisions of the
Target Certificate of Incorporation or Target bylaws or of any resolution
adopted by the Target Stockholders or the Target Board of Directors, and to
Target's Knowledge, no event has occurred, and no condition or circumstance
exists, that likely would (with or without notice and/or lapse of time)
constitute or result directly or indirectly in such a violation.

          (c) Target's books of account, stock records, minute books and other
records are accurate, up to date and complete and have been maintained in
accordance with standard industry business practices. The minute book made
available to Acquirer is Target's only original minute book. All of Target's
records are in Target's actual possession and direct control.

     4.5  Capitalization.
          -------------- 

          (a) Capital Stock. Target's authorized capital stock consists of: (i)
              -------------                                                    
10,000,000 shares of Common Stock, $.01 par value per share ("TARGET COMMON
STOCK"); (ii) 1,371,185 shares of Series A Convertible Preferred Stock, $.01 par
value per share, "); (iii) 848,140 shares of Series B Convertible Preferred
Stock, $.01 par value per share; and (iv) 861,629 shares of Series C Convertible

                                      -18-
<PAGE>
 
Preferred Stock, $.01 par value per share (the shares in (ii), (iii) and (iv)
collectively referred to as "TARGET PREFERRED STOCK"). As of the date of this
Agreement: (i) 2,354,288 shares of Target Common Stock; (ii) 1,371,185 shares of
Target Series A Convertible Preferred Stock; (iii) 848,140 shares of Target
Series B Convertible Preferred Stock; and (iv) 848,896 shares of Target Series C
Convertible Preferred Stock have been issued and are outstanding. A list of all
holders of Target Common Stock and Target Preferred Stock and the number of
shares held by each, is set forth in Section 4.5(a) of the Target Disclosure
Schedule. Each share of Target Preferred Stock is convertible into one share of
Common Stock, except that each share of Target's Series B Convertible Preferred
Stock is convertible into 1.0063256 shares of Target Common Stock.

          (b) Options and Warrants. As of the date of this Agreement: (i)
              --------------------                                       
options to purchase 674,847 shares of Target Common Stock, and (ii) warrants to
purchase 12,733 shares of Target Common Stock have been issued and are
outstanding. Options and warrants to purchase Target Common Stock, are
collectively referred to as "TARGET OPTIONS"). A list of all holders of Target
Options (other than New Options) is set forth in Section 4.5(b) of the Target
Disclosure Schedule. Section 4.5(b) of the Target Disclosure Schedule also sets
forth the following information: (i) the particular plan, if any, pursuant to
which each Target Option was granted; (ii) the name of each Target Option
holder; (iii) the number of shares of Target Common Stock subject to each Target
Option; (iv) the exercise price of each Target Option; (v) the date on which
each Target Option was granted; (vi) a description of the vesting formula for
each Target Option; and (vii) the date on which each Target Option expires.
Target has delivered to Acquirer accurate and complete copies of all plans
pursuant to which Target has ever granted stock options or warrants. Except as
set forth in this Section 4.5(b) and Section 4.5(b) of the Target Disclosure
Schedule, there is no: (i) outstanding preemptive right, subscription, option,
call, warrant or right (whether or not currently exercisable) to acquire from
Target or, to Target's Knowledge, from affiliates any shares of the capital
stock or other securities of Target; (ii) outstanding security, instrument or
obligation issued by Target or controlled affiliates that is or may become
convertible into or exchangeable for any shares of the capital stock or other
securities of Target; (iii) stockholders' rights plan (or similar plan commonly
referred to as a "poison pill") or Contract under which Target is or may become
obligated to sell or otherwise issue any shares of its capital stock or any
other securities; (iv) Contract to which Target is a party relating to the
voting or registration of or restricting any Person from purchasing, selling,
pledging or otherwise disposing of (or granting any option or similar right with
respect to) any shares of Target Common Stock; or (v) condition or circumstance,
to Target's Knowledge, that likely would directly or indirectly give rise to or
provide a basis for the assertion of a claim by any Person to the effect that
such Person is entitled to acquire or receive any shares of capital stock or
other securities of Target.

          (c) All issued and outstanding shares of Target Common Stock have been
duly authorized and validly issued, are fully paid and non-assessable, are not
subject to any right of rescission, and have been offered, issued, sold and
delivered by Target in compliance with all registration or qualification
requirements (or applicable exemptions therefrom) of applicable federal and
state securities laws.

          (d) Target has not repurchased, redeemed or otherwise reacquired (and,
except as contemplated by this Agreement, has not agreed, committed or offered,
in writing or otherwise, to reacquire) any shares of capital stock or other
securities of Target. There are no shares of Target Common Stock held in
treasury by Target.

          (e) Section 4.5(e) of the Target Disclosure Schedule sets forth all
shares of Target Common Stock reserved for future issuance pursuant to stock
options granted, director's and 

                                      -19-
<PAGE>
 
officer's stock option and stock purchase plans, employee stock option and stock
purchase plans and all other such similar plans. Target has reserved sufficient
shares of Target Common Stock for issuance upon the conversion of all Target
Preferred Stock and upon the exercise of all Target Options (other than New
Options).

               (f) Target is not under any obligation to register under the
Securities Act any of its presently outstanding securities or any securities
that may be subsequently issued.

          4.6  Board of Directors and Officers. Section 4.6 of the Target
               -------------------------------                           
Disclosure Schedule accurately sets forth: (i) the name of each member of
Target's Board of Directors; (ii) the name of each member of any committees of
Target's Board of Directors; and (iii) the name and title of each of Target's
executive officers.

          4.7  Subsidiaries and Other Interests. Target does not have any
               --------------------------------                          
subsidiaries or any interest, direct or indirect, in any Entity.

          4.8  Target Financial Statements. Target has delivered to Acquirer,
               ---------------------------                                   
hereto attached as Exhibit I, copies of: (a) Target's unaudited consolidated
                   ---------                                                
balance sheet as of September 30, 1998 (the "FINAL BALANCE SHEET") and unaudited
consolidated income statement and statement of cash flows for the nine months
ended September 30, 1998 (the "INTERIM FINANCIAL STATEMENTS") and (b) Target's
audited consolidated balance sheet as of December 31, 1997 and Target's audited
consolidated income statement and statement of cash flows for the fiscal year
ended December 31, 1997 (together with the Interim Financial Statements, the
"TARGET FINANCIAL STATEMENTS"). The Target Financial Statements: (i) are in
accordance with the books and records of Target; (ii) fairly present in all
material respects Target's financial condition at the date therein indicated and
the results of operations for the period therein specified; and (iii) have been
prepared in accordance with GAAP applied on a consistent basis (except for the
absence of any footnotes required by GAAP in the Interim Financial Statements
and subject to customary year-end adjustments). Except as set forth in the
Target Financial Statements, Target does not have any material Liability,
expense, claim, deficiency, guaranty or endorsement of any type, whether
accrued, absolute, contingent, matured, unmatured or other (whether or not
required to be reflected in financial statements in accordance with GAAP),
except for those liabilities which were incurred after September 30, 1998 in the
ordinary course of Target's business consistent with past practices.

          4.9  Title to Properties.
               ------------------- 

               (a) Target has good and marketable title to all of its assets as
shown on the Final Balance Sheet and all other assets reflected in Target's
books and records as being owned by Target, free and clear of all Encumbrances
except for Permitted Encumbrances and assets disposed of in the Ordinary Course
of Business. All machinery and equipment included in such properties is in good
condition and repair, normal wear and tear excepted.

               (b) Target owns no real property, nor has it ever owned any real
property. All leases of real or personal property to which Target is a party are
fully effective and afford Target peaceful and undisturbed possession of the
subject matter of the lease. The Surviving Corporation will obtain a valid
ownership or leasehold interest in all such personal property that Target
currently owns or leases and all real property that Target currently leases, as
of the date of this Agreement, in each case free and clear of all title defects
and Encumbrances of any kind, except: (i) mechanics', carriers', workers' and
other similar liens arising in the Ordinary Course of Business, (ii) liens for
current taxes not yet due and payable and (iii) Permitted Encumbrances.

                                      -20-
<PAGE>
 
               (c)  Target is not in material violation of any law or regulation
(including but not limited to zoning, building, safety or environmental
ordinance, regulation or requirements) applicable to the operation of owned or
leased properties the violation of which would have a Material Adverse Effect,
nor has Target received any written notice of violation of any such law or
regulation with which it has not complied.

          4.10 Intellectual Property.
               --------------------- 

               (a)  As used herein, the term "INTELLECTUAL PROPERTY RIGHTS"
shall mean all worldwide industrial and intellectual property rights, including,
without limitation, patents, patent applications, patent rights, trademarks,
trademark applications, trade names, service marks, service mark applications,
copyright, copyright applications, franchises, licenses, inventories, know-how,
trade secrets, customer lists, proprietary processes and formulae, all source
and object code, algorithms, architecture, structure, display screens, layouts,
inventions, development tools and all documentation and media constituting,
describing or relating to the above, including, without limitation, manuals,
memoranda and records.

               (b)  Except for standard non-exclusive consumer software licenses
granted in the Ordinary Course of Business, Target owns or has a written license
to, and has the unrestricted right to use, sell and license, all Intellectual
Property Rights material to Target's business or conduct of its businesses (such
Intellectual Property Rights collectively referred to as the "TARGET IP RIGHTS")
and such rights to use, sell or license are reasonably sufficient for such
conduct of its businesses. No portion of the Target IP Rights is subject to: (i)
any Encumbrance, or (ii) any outstanding Order, stipulation or Contract
restricting in any manner Target's ability to license or exploit such Target IP
Rights, except for standard non-exclusive consumer software licenses granted in
the Ordinary Course of Business. There are no royalties, honoraria, fees or
other payments payable by Target to any Person by reason of the ownership, use,
license, sale or disposition of the Target IP Rights (other than as set forth in
Section 4.10(b) of the Target Disclosure Schedule).

               (c)  After the Effective Time of the Merger, the Surviving
Corporation will own or have the unrestricted right to use, sell, license and
dispose of, and otherwise exercise rights with respect to all Target IP Rights
other than as set forth 4.10(a) and (b). The execution, delivery and performance
of this Agreement and the consummation of the transactions contemplated hereby
will not: (i) constitute a material breach of any Contract governing any Target
IP Right or (ii) cause the forfeiture or termination or give rise to a right of
forfeiture or termination of any Target IP Right or materially impair the right
of Target or Acquirer to use, sell or license all or any portion of any Target
IP Right.

               (d)  Except as set forth on Section 4.10(e), neither the past,
current or intended use of the Target IP Rights in Target's business as it has
been conducted prior to the Closing, nor the manufacture, marketing, license,
sale or intended use of any product currently licensed or sold by Target or
currently under development by Target, causes Target to violate any license or
Contract between Target and any third party or to violate or infringe any
Intellectual Property Rights of any other Person. There is no pending or, to
Target's Knowledge, threatened Order or Proceeding contesting the validity,
ownership or right to use, sell, license or dispose of any Target IP Right nor,
to Target's Knowledge, is there any basis for any such Order or Proceeding.
Target has not received any notice asserting that any Target IP Right or the
proposed use, sale, license or disposition of a Target IP Right conflicts or
will conflict with the Intellectual Property Rights or other rights of any other
party, nor, to Target's Knowledge, is there any basis for any such assertion.
Target is not wrongfully using any confidential information or trade secrets of
any former employer of any past or present Target

                                      -21-
<PAGE>
 
employees. Other than as part of its standard form of end-user license
agreements or distributor or reseller agreements, Target has not entered into
any Contract to indemnify any other Person against any charge of infringement
relating to any Intellectual Property Rights.

          (e) Target has taken reasonable and practicable steps designed to
safeguard and maintain the secrecy and confidentiality of, and its proprietary
rights in, all Target IP Rights. There is no material unauthorized use,
infringement or misappropriation of any Target IP Right by any third party,
including, to the knowledge or Target, any Target employee. All Target officers,
employees and consultants have executed and delivered to Target an agreement
regarding the protection of proprietary information and the assignment to Target
of all Intellectual Property Rights arising from the services performed for
Target by such persons, and Target has delivered to Acquirer copies of all such
agreements. No Target employee or consultant is in violation of any material
term of any employment Contract, patent disclosure agreement or any other
Contract relating to the relationship of such employee with Target or any other
party (including prior employers) because of the nature of the business
conducted or proposed by Target. Section 4.10(f) of the Target Disclosure
Schedule contains a list of all applications, registrations, filings and other
formal actions made or taken pursuant to federal, state and foreign laws by
Target to perfect or protect its interest in Target IP Rights, including,
without limitation, all patents, patent applications, trademarks, trademark
applications and service marks. No loss, cancellation, termination or expiration
of any such registration is reasonably foreseeable except as set forth in
Section 4.10(e) of the Target Disclosure Schedule.

          (f) Target has taken reasonable steps to ensure that its products,
systems and technology (including products, systems and technology that
currently exist and/or that are currently under development) will record, store,
process, calculate and present calendar dates falling on and after (and if
applicable, spans of time including) January 1, 2000, and will calculate any
information dependent on or relating to such dates in the same manner, and with
the same functionality, data integrity and performance, as the products, systems
and technology record, store, process, calculate and present calendar dates on
or before December 31, 1999, or calculate any information dependent on or
relating to such dates (collectively, "YEAR 2000 COMPLIANT"). Target has taken
reasonable steps to ensure that its products, systems and technology will lose
no functionality with respect to the introduction of records containing dates
falling on or after January 1, 2000. All of Target's internal computer and
technology products and systems which are critical to the operation of its
business are Year 2000 Compliant.

       4.11   Absence of Certain Changes and Actions.
              -------------------------------------- 

              (a) Since the date of the Final Balance Sheet, there has not been
with respect to Target:

                  (i)    any Material Adverse Effect;

                  (ii)   any contingent Liability incurred as guarantor or
otherwise with respect to the obligations of others;

                  (iii)  any Encumbrance (other than Permitted Encumbrances)
placed on any of the properties or assets of which Target owns or has a
substantial interest;

                  (iv)   any material Liability incurred other than Liabilities
incurred in the Ordinary Course of Business;

                                      -22-
<PAGE>
 
          (v)    any purchase, sale, pledge, hypothecation or other disposition,
or any Contract for the purchase, sale or other disposition, of any of Target's
properties or assets other than in the Ordinary Course of Business and not
exceeding $100,000 in aggregate purchases, sales, pledges, hypothecations and
other dispositions;

          (vi)   any damage, destruction or loss, whether or not covered by
insurance, having a Material Adverse Effect on Target's properties, assets or
business;

          (vii)  any material labor dispute or claim of unfair labor practices,
any change in the compensation payable or to become payable to any of its
officers, employees or agents, or any bonus payment or arrangement made to or
with any of such officers, employees or agents;

          (viii) any change with respect to the employment of the Key Employees;

          (ix)   any payment or discharge of a material Liability of Target,
which Liability was not either shown on the Final Balance Sheet or incurred in
the Ordinary Course of Business thereafter; or

          (x)    any Liability of Target to any of Target's officers, directors
or stockholders or any loans or advances made thereby to any of Target's
officers, directors or stockholders, except normal compensation and expense
allowances payable to officers.

     (b)  Since the date of the Final Balance Sheet, Target has not:

          (i)    formed any subsidiary or acquired any equity interest or other
interest in any other Entity;

          (ii)   amended the Target Certificate of Incorporation, Target bylaws
or any other charter document;

          (iii)  sold, issued, granted or authorized the issuance or grant of:
(A) any shares of its capital stock of any class or other security (other than
pursuant to exercise of outstanding stock options); (B) any option, call,
warrant, obligation, subscription, option or right to acquire any capital stock
or any other security, except for New Options authorized pursuant to Section 3.5
and stock options and warrants described in Section 4.5; or (C) any instrument
convertible into or exchangeable for any capital stock or other security; or
accelerated the vesting of any outstanding option or other security, except for
acceleration provisions that are contained in existing stock option grants
described on Schedule 3.5 to the Target Disclosure Schedule;

          (iv)   declared, set aside or paid any dividend on, or made any other
distribution in respect of, Target's capital stock;

          (v)    effected any split, combination or recapitalization of Target's
capital stock or any direct or indirect redemption, purchase or other
acquisition of Target's capital stock, or effected or been a party to any
transaction relating to a recapitalization, reclassification of shares, stock
split, reverse stock split or similar transaction;

          (vi)   effected or been a party to any transaction relating to a
merger, consolidation, sale of all or substantially all of its assets, or
similar transaction; or received, accepted or

                                      -23-
<PAGE>
 
otherwise entered into any Acquisition Proposal, or solicited, initiated,
encouraged or induced, or provided any nonpublic information to or entered into
any discussions with any Person for the purpose of soliciting, initiating,
encouraging or inducing, the making or submission of any Acquisition Proposal;

          (vii)    made any capital expenditures, except for such capital
expenditures as in the aggregate, measured by invoice amount, do not exceed
$50,000 or were consented to by Acquirer in writing;

          (viii)   entered into any material lease or Contract for the purchase
or sale of any property, real or personal, except in the Ordinary Course of
Business consistent with past practice;

          (ix)     borrowed any money other than in the Ordinary Course of
Business, but in any event not exceeding $10,000 and a $1.5 million loan
agreement with Silicon Valley Bank;

          (x)      made any loan or advance to any other Person, including
without limitation any Target Stockholder (except for normal employee travel
advances in the Ordinary Course of Business);

          (xi)     guaranteed or acted as a surety for any obligation except for
the endorsement of checks and other negotiable instruments in the Ordinary
Course of Business, consistent with past practice, which are not material in
amount;

          (xii)    established, amended or adopted any Target Employee Plan or
Target Benefit Arrangement (defined in Sections 4.18(c) and 4.18(e)), paid any
bonus or made any profit sharing or similar payment to, or increased the amount
of the wages, salary, commissions, fringe benefits or other compensation or
remuneration payable to, any of its directors, officers or employees, other than
as required under agreements existing on the date hereof as disclosed in Section
4.11(b) of the Target Disclosure Schedule; or entered into any new employment
agreement with any such person other than in the Ordinary Course of Business;

          (xiii)   written off as uncollectable, or established any
extraordinary reserve with respect to, any account receivable or other
indebtedness, except in the Ordinary Course of Business;

          (xiv)    forgiven any debt or Encumbrance or otherwise released or
waived any right or claim;

          (xv)     amended or terminated any Contract or license to which it is
a party except those amended or terminated in the Ordinary Course of Business
which are not material in amount or effect;

          (xvi)    changed any of its methods of accounting or accounting
practices in any respect (other than as required by GAAP); or

          (xvii)   agreed to any audit assessment by any tax authority or filed
any federal or state income or franchise tax return unless copies of such
returns have been delivered to Acquirer for its review prior to filing;

                                      -24-
<PAGE>
 
               (xviii)  entered into any transaction or taken any other action
outside the Ordinary Course of Business (other than as disclosed and pursuant to
this Agreement).

          (c)  Since the date of the Final Balance Sheet, Target has not agreed,
committed or entered into any Contract, in writing or otherwise, to take any of
the actions referred to in Sections 4.11(a) or 4.11(b) above.

     4.12  Liabilities to Stockholders. To the Knowledge of Target, no Target
           ---------------------------  
Stockholders have any claims of any nature against Target, including, without
limitation, for any undistributed earnings or profits of Target.

     4.13  Litigation. There is no Proceeding pending against Target and, nor to
           ----------  
Target's Knowledge, has any Proceeding been threatened, including without
limitation any Proceedings alleging infringement of the Intellectual Property
Rights of another or unfair competition or trade practices, that, if determined
adversely to the interests of Target, would be reasonably likely to have a
Material Adverse Effect on Target.

     4.14  Taxes.
           ----- 

           (a) For the purposes of this Agreement, the terms "TAX" and "TAXES"
include all federal, state, local and foreign income, gains, franchise, excise,
property, sales, use, employment, license, payroll, occupation, recording, value
added or transfer taxes, governmental charges, fees, levies or assessments
(whether payable directly or by withholding), and, with respect to such taxes,
any estimated tax, interest and penalties or additions to tax and interest on
such penalties and additions to tax.

           (b) Target has: (i) filed all federal, state, local and foreign tax
returns required to be filed; (ii) paid all taxes shown on such returns and;
(iii) established an adequate accrual or reserve for the payment of all taxes
payable in respect of the periods subsequent to the periods covered by the most
recent applicable tax returns. Target has no material Liability for taxes in
excess of the amount so paid or accruals or reserves so established in the
Target Financial Statements.

           (c) Except as set forth on Schedule 4.14, no deficiencies for any tax
have been threatened, claimed, proposed or assessed in writing. No Target tax
return currently is being audited by the Internal Revenue Service or any state
taxing agency or authority. Target has delivered to Acquirer accurate and
complete copies of tax returns filed by Target during the past three years.

     4.15  Compliance with Laws. To Target's Knowledge, Target has complied and
           --------------------
is in compliance, in all material respects, with all applicable laws,
ordinances, regulations and rules, and all Orders applicable to it or to its
assets, properties and business and the violation of which would have a Material
Adverse Effect, including, without limitation:

           (a) all applicable federal and state securities laws and regulations;

           (b) all applicable federal, state, and local laws, ordinances,
regulations, and all Orders pertaining to: (i) the sale, licensing, leasing,
ownership, or management of its owned, leased or licensed real or personal
property, products and technical data; (ii) employment and employment practices,
terms and conditions of employment, and wages and hours; and (iii) safety,
health, fire prevention, environmental protection, toxic waste disposal,
building standards, zoning and other similar matters;

                                      -25-
<PAGE>
 
           (c) the Export Administration Act and regulations promulgated
thereunder and all other laws, regulations, rules, Orders applicable to the
import, export and re-export of controlled commodities or technical data; and

           (d) the Immigration Reform and Control Act and all other immigration
control laws.

           Target has received all material permits and approvals from, and has
made all filings with, third parties, including government agencies and
authorities, that are necessary in connection with its present business.

     4.16  Contracts and Commitments.
           ------------------------- 

           (a) Target is not a party to any Contract which has had or would
reasonably be expected to have a Material Adverse Effect. Except as set forth in
Section 4.16(a) of the Target Disclosure Schedule, Target is not a party nor is
subject to any Contracts, any of which is material to the business, financial
condition, operations, results of operations, assets or Liabilities of Target
("MATERIAL TARGET CONTRACTs"), including, but not limited to any:

               (i)    Contract providing for payments by or to Target in an
aggregate amount of: (A) $50,000 or more in the Ordinary Course of Business, or
(B) $10,000 or more not in the Ordinary Course of Business;

               (ii)   license agreement as licensor or licensee, including
without limitation any Contract to which Target has granted or may grant in the
future a source code license or option or other right to use or acquire source
code (except: (A) as licensee of standard non-exclusive consumer software
licenses in the ordinary course of business, and (B) for standard non-exclusive
software licenses granted to end-user customers in the Ordinary Course of
Business, the form of which has been provided to Acquirer);

               (iii)  agreement to place an Encumbrance on, transfer or sell
rights in or with respect to any of the Target IP Rights (except for standard
non-exclusive software licenses granted to end-user customers in the Ordinary
Course of Business);

               (iv)   material Contract for the lease of real or personal
property;

               (v)    joint venture Contract that involves a sharing of profits
with other Persons;

               (vi)   instrument evidencing or related in any way to
indebtedness for borrowed money by way of direct loan, sale of debt securities,
purchase money obligation, conditional sale, guarantee or otherwise, except for
trade indebtedness incurred in the Ordinary Course of Business, and except as
disclosed in the Target Financial Statements;

               (vii)  Contract containing covenants purporting to limit Target's
freedom to compete in any line of business in any geographic area;

               (viii) stock redemption, stock option or stock purchase
agreement, financing agreement, license, lease or franchise;

                                      -26-
<PAGE>
 
               (ix) any government contract or subcontract; or

               (x)  any other material Contract entered into outside the
Ordinary Course of Business.

          (b)  Target has delivered to Acquirer accurate and complete copies of
all Material Target Contracts (each of which is listed in Section 4.16 (a) of
the Target Disclosure Schedule). Each Material Contract is in full force and
effect, and is enforceable by Target in accordance with its material terms.

          (c)  Target is not in breach or violation of or in default under any
Material Contract, and to Target's Knowledge: (i) no Person acting for Target
has violated or breached, or declared or committed any material default under,
any Material Contract; (ii) no event has occurred, and no circumstance or
condition exists, that likely would (with or without notice and/or lapse of
time): (A) result in a material violation or breach of any of the provisions of
any Material Contract, (B) give any Person the right to declare a default or
exercise any material remedy under any Material Contract, (C) give any Person
the right to accelerate the maturity or performance of any Material Contract, or
(D) give any Person the right to cancel, terminate or modify any Material
Contract; and (iii) Target has not waived any of its material rights under any
Material Contract.

          (d)  Target has not received any notice that any Person against which
Target has or may acquire any rights under any Material Contract is insolvent
and is not able to satisfy all of such Person's Liabilities to Target, the
failure of which would result in a Material Adverse Effect.

          (e)  No Person is currently materially renegotiating, nor has the
contractual right to materially renegotiate, any amount paid or payable to
Target under any Material Contract or any other material term or provision of
any Material Contract.

          (f)  Section 4.16(f) of the Target Disclosure Schedule identifies and
provides an accurate and brief description, as of the date of this Agreement, of
each proposed Contract as to which any bid, offer, written proposal, term sheet
or similar document has been submitted or received by Target that would commit
Target to provide services and is outstanding and if entered would constitute a
Material Contract.

          (g)  No party to any Material Contract has notified Target in writing
that Target has failed to perform any material obligation thereunder. In
addition, to Target's Knowledge, there is no plan, intention or indication of
any contracting party to any Material Contract to cause the termination,
cancellation or modification of such Contract or to reduce or otherwise change
its activity thereunder in any material respect so as to adversely affect the
benefits derived or expected to be derived therefrom by Target.

          (h)  Target has all material Target Contracts necessary to conduct its
business in the manner in which it is being conducted or is proposed to be
conducted prior to the Closing.

     4.17  Certain Transactions and Agreements. None of the Target Key
           -----------------------------------
Employees, nor to their knowledge any member of their immediate families
residing in the same residence:

                                      -27-
<PAGE>
 
          (a)  has any direct or indirect ownership interest in any firm or
corporation that competes with Target (except with respect to any interest in
less than one percent of the stock of any corporation whose stock is publicly
traded) other than passive investment in equity or debt securities;

          (b)  is directly or indirectly interested in any Contract with Target,
except for normal compensation for services as a Target officer, director or
employee; or

          (c)  has any material interest in any property, real or personal,
tangible or intangible, including without limitation Intellectual Property
Rights, used in or pertaining to Target's business, except for the normal rights
of a stockholder.

          To Target's knowledge, no Target officer or director, or any
"affiliate" or "associate" (as those terms are defined in Rule 405 promulgated
under the Securities Act) of any such person has had, either directly or
indirectly, a material interest in: (a) any Entity which purchases from or
sells, licenses or furnishes to Target any goods, property, technology or
intellectual or other property rights or services, or (b) any Contract to which
Target is a party or by which it may be bound or affected other than with
respect to arms-length transactions.

     4.18 Employees, ERISA and Other Compliance.
          ------------------------------------- 

          (a)  General Compliance. Target is in compliance in all material
               ------------------                                         
respects with all applicable laws and Contracts relating to employment,
employment practices, wages, hours, and terms and conditions of employment,
including, but not limited to, employee compensation matters. Except as set
forth in Section 4.18(a) of the Target Disclosure Schedule, Target has no
employment or consulting Contracts currently in effect that are not terminable
at will (other than agreements with the sole purpose of providing for the
confidentiality of proprietary information or assignment of inventions). All
independent contractors have been properly classified as independent contractors
for the purposes of federal and applicable state tax laws, laws applicable to
employee benefits and other applicable laws.

          (b)  Good Labor Relations. Target: (i) to Target's knowledge has never
               --------------------                                             
been and is not now subject to a union organizing effort; (ii) is not subject to
any collective bargaining agreement with respect to any of its employees; (iii)
is not subject to any other Contract with any trade or labor union, employees'
association or similar organization; and (iv) to its knowledge has no current
labor disputes. Target has good labor relations, and has no Knowledge of any
facts indicating that the consummation of the Merger or any of the other
transactions contemplated hereby will have a Material Adverse Effect on such
labor relations. As of the date of this Agreement, Target has no Knowledge that
any Key Employees or other key personnel intends to leave its employ. There are
no controversies pending or, to Target's Knowledge, threatened, between Target
and any of its employees that would be reasonably likely to result in Target
incurring any material Liability. All Target employees are legally permitted to
be employed by Target in the United States of America.

          (c)  Employee Plans. Section 4.18(c) of the Target Disclosure Schedule
               --------------                                                   
identifies: (i) each "employee benefit plan", as defined in Section 3(3) of the
Employee Retirement Income Security Act of 1974, as amended ("ERISA"); and (ii)
all other written or formal plans or Contracts involving direct or indirect
compensation or benefits (including any employment Contracts entered into
between Target and any employee of Target, but excluding workers' compensation,
unemployment compensation and other government-mandated programs) currently or
previously maintained, contributed to or entered into by Target under which
Target or any ERISA Affiliate (as defined below) has any present or future
Liability (collectively, the "TARGET EMPLOYEE PLANS"). For

                                      -28-
<PAGE>
 
purposes of this Section 4.18, "ERISA AFFILIATE" shall mean any entity which is
a member of: (i) a "controlled group of corporations", as defined in Section
414(b) of the Code; (ii) a group of entities under "common control", as defined
in Section 414(c) of the Code; or (iii) an "affiliated service group", as
defined in Section 414(m) of the Code, or treasury regulations promulgated under
Section 414(o) of the Code, any of which includes Target. Copies of all Target
Employee Plans (and, if applicable, related trust agreements) and all related
documents, amendments and written interpretations (including summary plan
descriptions) thereto have been delivered to Acquirer or its counsel, together
with the two most recent annual reports (Form 5500, including, if applicable,
Schedule B thereto) prepared in connection with any such Target Employee Plan.
No "prohibited transaction," as defined in Section 406 of ERISA or Section 4975
of the Code, has occurred with respect to any Target Employee Plan which is
covered by Title I of ERISA which would result in a material Liability to
Target, excluding transactions effected pursuant to a statutory or
administrative exemption. Nothing done or omitted to be done and no transaction
or holding of any asset under or in connection with any Target Employee Plan has
or will make Target or any Target officer or director subject to any material
Liability under Title I of ERISA or Liability for any material tax (as defined
in Section 4.14) or penalty pursuant to Sections 4972, 4975, 4976 or 4979 of the
Code or Section 502 of ERISA. All contributions due from Target with respect to
any of the Target Employee Plans have been made as required under ERISA or have
been accrued on the Target Financial Statements. Target has performed in all
material respects all obligations required to be performed by it under each
Target Employee Plan, and each Target Employee Plan has been maintained
substantially in compliance with its terms and with the requirements prescribed
by any and all statutes, Orders, rules and regulations, including, without
limitation, ERISA and the Code, which are applicable to such Target Employee
Plans.

          (d) Pension Plans. All Target Employee Plans which individually or
              -------------                                                 
collectively would constitute an "employee pension benefit plan", as defined in
Section 3(2) of ERISA (collectively, the "TARGET PENSION PLANS"), are identified
as such in Section 4.18(d) of the Target Disclosure Schedule. Any Target Pension
Plan which is intended to be qualified under Section 401(a) of the Code (a
"TARGET 401(A) PLAN") is so qualified and has been so qualified during the
period from its adoption to date, and the trust forming a part is exempt from
tax pursuant to Section 501(a) of the Code. No Target Pension Plan constitutes,
or has since the enactment of ERISA constituted, a "multiemployer plan," as
defined in Section 3(37) of ERISA. No Target Pension Plans are subject to Title
IV of ERISA. Target has delivered to Acquirer or Acquirer's counsel a complete
and correct copy of the most recent Internal Revenue Service determination
letter with respect to each Target 401(a) Plan, if any exists.

          (e) Benefit Arrangements. Section 4.18(e) of the Target Disclosure
              --------------------                                          
Schedule lists each employment, severance (including all post-employment
Liabilities) or other similar Contract or policy and each Contract providing for
insurance coverage (including any self-insured arrangements), workers' benefits,
vacation benefits, severance benefits, disability benefits, death benefits,
hospitalization benefits, retirement benefits, deferred compensation, profit-
sharing, bonuses, stock options, stock purchase, phantom stock, stock
appreciation or other forms of incentive compensation or post-retirement
insurance, compensation or benefits for employees, consultants or directors
which: (i) is not a Target Employee Plan; (ii) is entered into, maintained or
contributed to by Target; and (iii) covers any employee or former employee of
Target. Such Contracts and policies as are described in this Section 4.18(e) are
herein referred to collectively as the "TARGET BENEFIT ARRANGEMENTS." Each
Target Benefit Arrangement has been maintained in substantial compliance with
its terms and with the requirements prescribed by any and all statutes, Orders,
rules and regulations which are applicable to such Target Benefit Arrangement.
Target has delivered to Acquirer or its counsel a complete and correct copy or
description of each Target Benefit Arrangement. All individuals who, pursuant to
the terms of any Target Benefit Arrangement, are entitled to participate in any
such Target Benefit Arrangement, are currently

                                      -29-
<PAGE>
 
participating in such Target Benefit Arrangement or have been offered an
opportunity to do so and have declined.

          (f)  Since January 1, 1998, there has been no amendment to, written
interpretation or announcement (whether or not written) by Target relating to,
or change in employee participation or coverage under, any Target Employee Plan
or Target Benefit Arrangement that would increase materially the expense of
maintaining such Target Employee Plan or Target Benefit Arrangement in the
future other than the New Target Option Plan.

          (g)  No benefit payable or which may become payable by Target pursuant
to any Target Employee Plan or any Target Benefit Arrangement or as a result of
or arising under this Agreement shall constitute an "excess parachute payment"
(as defined in Section 280G(b)(1) of the Code) which is subject to the
imposition of an excise tax under Section 4999 of the Code or which would not be
deductible by reason of Section 280G of the Code.

          (h)  COBRA Compliance. Target has provided, or will have provided
               ----------------
prior to the Closing, to individuals entitled thereto all required notices and
coverage pursuant to Section 4980B of the Code and the Consolidated Omnibus
Budget Reconciliation Act of 1985, as amended ("COBRA"), with respect to any
"qualifying event" (as defined in Section 4980B(f)(3) of the Code) occurring
prior to and including the Closing Date, and no material tax payable on account
of Section 4980B of the Code has been incurred with respect to any current or
former employees (or their beneficiaries) of Target.

          (i)  No Violation of Contracts. No Target employee is in violation of
               -------------------------                                       
any term of any employment Contract, patent disclosure agreement, non-
competition agreement, or any other Contract, or any restrictive covenant
relating to the right of any such employee to be employed by Target, or to use
Intellectual Property Rights of others. To Target's Knowledge, the mere fact of
employment of any Target employee does not subject Target to any Liability.

          (j)  Effect of Merger.
               ---------------- 

               (i)   Target is not a party to any Contract or plan with any
Target Key Employee or other key personnel: (A) the benefits of which are
contingent, or the terms of which are materially altered, upon the occurrence of
a transaction involving Target in the nature of any of the transactions
contemplated by this Agreement and the Certificate of Merger; (B) providing any
term of employment or compensation guarantee; or (C) providing severance
benefits or other benefits after the termination of employment of such employee
regardless of the reason for such termination of employment.

               (ii)  Target is not a party to any Contract or plan, including,
without limitation, any stock option plan, stock appreciation rights plan or
stock purchase plan, any of the benefits of which will be materially increased,
or the vesting of benefits of which will be materially accelerated, by the
occurrence of any of the transactions contemplated by this Agreement and the
Certificate of Merger or the value of any of the benefits of which will be
calculated on the basis of any of the transactions contemplated by this
Agreement and the Certificate of Merger, except as set forth in Section 4.18(j)
of the Target Disclosure Schedule.

          (k)  A list of all current Target employees and consultants and
the current compensation of each is set forth in Section 4.18(k) of the Target
Disclosure Schedule.

                                      -30-
<PAGE>
 
          4.19 Books and Records.
               ----------------- 

               (a) The books, records and accounts of Target: (i) are in all
material respects true, complete and correct; (ii) have been maintained in
accordance with standard industry practices on a basis consistent with prior
years; (iii) are stated in reasonable detail and accurately and fairly reflect
the transactions and dispositions of the assets of Target; and (d) accurately
and fairly reflect the basis for the Target Financial Statements.

               (b) Target has devised and maintains a system of internal
accounting controls reasonably sufficient to provide reasonable assurances that:
(i) transactions are executed in accordance with management's general or
specific authorization; (ii) transactions are recorded as necessary: (A) to
permit preparation of financial statements in conformity with GAAP or any other
criteria applicable to such statements, and (B) to maintain accountability for
assets; and (iii) the amount recorded for assets on Target's books and records
is compared with the existing assets at reasonable intervals and appropriate
action is taken with respect to any differences.

          4.20 Insurance. Target maintains, and at all times since May 1996 has
               ---------                                                       
maintained, fire and casualty, general liability, business interruption, product
liability and sprinkler and water damage insurance which it believes to be
reasonably prudent for similarly sized and similarly situated businesses.

          4.21 Environmental Matters.
               --------------------- 

               (a) For the purposes of this Agreement, the terms "DISPOSAL,"
"RELEASE," and "THREATENED RELEASE" shall have the definitions assigned thereto
by the Comprehensive Environmental Response, Compensation and Liability Act of
1980, 42 U.S.C. (S) 9601 et seq., as amended ("CERCLA"). For the purposes of
this Agreement, "HAZARDOUS MATERIALS" shall mean any hazardous or toxic
substance, material or waste which is or becomes prior to the Closing regulated
under, or defined as a "hazardous substance," "pollutant," "contaminant," "toxic
chemical," "hazardous material," "toxic substance" or "hazardous chemical"
under: (i) CERCLA; (ii) any similar federal, state or local law; or (iii)
regulations promulgated under any of the above laws or statutes.

               (b) To Target's Knowledge, none of Target's properties or
facilities is in violation of any federal, state or local law, ordinance,
regulation or Order relating to industrial hygiene or to the environmental
conditions on, under or about such properties or facilities, including, but not
limited to, soil and ground water condition.

               (c) To Target's Knowledge, during the time that Target has owned
or leased properties or owned or operated any facilities:

                   (i)    neither Target nor any third party has used,
generated, manufactured or stored on, under or about such properties or
facilities or transported to or from such properties or facilities any Hazardous
Materials;

                   (ii)   there have been no disposals, releases or threatened
releases of Hazardous Materials (as defined below) on, from or under such
properties or facilities; and

                   (iii)  there has been no litigation or Proceeding brought or
threatened against Target by, or any settlement reached by Target with, any
party or parties alleging the presence,

                                      -31-
<PAGE>
 
disposal, release or threatened release of any Hazardous Materials on, from or
under any of Target's owned or leased properties or facilities.

               (d) Target has no Knowledge of any presence, disposals, releases
or threatened releases of Hazardous Materials on, from or under any of such
properties or facilities that may have occurred prior to Target having taken
possession of any of such properties or facilities.

          4.22 No Brokers' Fees. Target is not obligated for the payment of
               ----------------                                            
fees or expenses of any investment banker, broker, finder or other agent in
connection with the origin, negotiation or execution of this Agreement or the
Certificate of Merger or in connection with any transaction contemplated hereby
or thereby.

          4.23 Voting Arrangements, Except for the Voting Agreement, there are
               -------------------                                            
no outstanding stockholder agreements, voting trusts, proxies or other Contracts
to which Target is a party or, to Target's Knowledge, to which any other Person
is a party, relating to the voting of any shares of Target's capital stock.

          4.24 Ownership of Shares of Acquirer Capital Stock. Except as set
               ---------------------------------------------               
forth in Section 4.24 of the Target Disclosure Schedule, as of the date hereof,
neither Target nor, to Target's Knowledge, any of Target's affiliates or
associates (as such terms are defined under the Securities and Exchange Act of
1934, as amended): (a) beneficially owns, directly or indirectly; or (b) is
party to any Contract for the purpose of acquiring, holding, voting or disposing
of, in each case, shares of Acquirer capital stock, except for shares of
Acquirer capital stock in the aggregate representing less than 1% of the
outstanding shares of Acquirer capital stock.

          4.25 Accuracy of Disclosure. Neither the Target Disclosure Schedule,
               ----------------------                                         
this Agreement, its exhibits and schedules, nor any of the certificates or
documents to be delivered by Target to Acquirer under this Agreement, taken
together, contains or will contain any untrue statement of a material fact or
omits or will omit to state any material fact necessary in order to make the
statements contained herein and therein, in light of the circumstances under
which such statements were made, not misleading.

     5.   REPRESENTATIONS AND WARRANTIES OF ACQUIRER AND MERGER SUB. Except as
specifically set forth in the disclosure letter provided by Acquirer and Merger
Sub simultaneously with the signing of this Agreement, dated as of the date of
this Agreement (the "Acquirer Disclosure Schedule"), the parts of which are
numbered to correspond to the section numbers of this Agreement, Acquirer and
Merger Sub hereby represent and warrant to Target as follows:

          5.1  Organization and Good Standing. Acquirer is a corporation duly
               ------------------------------                                
organized, validly existing and in good standing under the laws of the State of
Delaware, and has the corporate power and authority to own, operate and lease
its properties and to carry on its business as now conducted and as proposed to
be conducted.

          5.2  Power, Authorization and Validity.
               --------------------------------- 

               (a) Acquirer has the right, power, legal capacity and authority
to: (i) to carry on its business as now conducted and as proposed to be
conducted; (ii) to own, use and lease its properties in the manner in which its
properties are currently owned, used and leased and in the manner in which its
properties are proposed to be owned, used and leased; and (iii) enter into and
perform its

                                      -32-
<PAGE>
 
obligations under this Agreement and all other Merger Agreements to which
Acquirer is or will be a party that are required to be executed pursuant to this
Agreement (collectively with this Agreement, the "ACQUIRER MERGER AGREEMENTS").
The execution, delivery and performance of the Acquirer Merger Agreements have
been duly and validly approved and authorized by Acquirer's Board of Directors,
and as required, by Merger Sub's Board of Directors.

               (b)  No filing, authorization or approval, governmental or
otherwise, is necessary to enable Acquirer to enter into and perform its
obligations under the Acquirer Merger Agreements, except for: (i) the filing of
the Certificate of Merger with the Delaware Secretary of State and the filing of
appropriate documents with the relevant authorities of other states in which
Acquirer is qualified to do business, if any; (ii) such filings as may be
required to comply with federal and state securities laws; and (iii) such other
approvals as set forth in Section 5.2(b) of the Target Disclosure Schedule.

               (c)  The Acquirer Merger Agreements are, or when executed by
Acquirer will be, valid and binding obligations of Acquirer enforceable in
accordance with their respective terms, except as to the effect, if any, of: (i)
applicable bankruptcy and other similar laws affecting the rights of creditors
generally; (ii) rules of law governing specific performance, injunctive relief
and other equitable remedies; and (iii) the enforceability of provisions
requiring indemnification in connection with the offering, issuance or sale of
securities; provided, however, that the Certificate of Merger will not be
effective until filed with the Delaware Secretary of State.

          5.3  No Violation of Existing Agreements. Neither the execution and
               -----------------------------------                           
delivery of any of the Acquirer Merger Agreements, nor the consummation of the
transactions contemplated hereby, will conflict with, or (with or without notice
and/or lapse of time) result in a termination, breach, impairment or violation
of: (a) any provision of the certificate of incorporation, bylaws or other
charter documents of Acquirer, as currently in effect; (b) in any material
respect, any material Contract to which Acquirer is a party or by which Acquirer
is bound; or (c) any federal, state, local or foreign Order, statute, rule or
regulation applicable to Acquirer or its assets or properties.

          5.4  Valid Issuance of Acquirer's Series A Common Stock. The shares of
               --------------------------------------------------               
Acquirer's Series A Common Stock to be issued pursuant to the Merger have been
duly authorized and reserved for issuance and, when issued in accordance with
the terms of the Merger Agreements, will be validly issued, fully paid and non-
assessable, will not be subject to any preemptive rights and will be issued in
compliance with all applicable federal or state securities laws pursuant to a
valid exemption from registration under Section 4(2) and/or Rule 506 of
Regulation D of the Securities Act. The authorized, issued and outstanding
capitalization of Acquirer is as set forth in Acquirer's SEC Filings as of the
dates of the financial statements or other information included in Acquirer's
SEC Filings.

          5.5  Disclosure. Acquirer has made available to Target an investor
               ----------                                                   
disclosure package consisting of Acquirer's annual report on Form 10-K for its
fiscal year ending December 31, 1997 (the "FISCAL YEAR END"), all Forms 10-Q and
8-K filed by Acquirer with the Securities and Exchange Commission since the
Fiscal Year End and up to the date of this Agreement and all proxy materials
distributed to Acquirer's stockholders since the Fiscal Year End and up to the
date of this Agreement (the "ACQUIRER DISCLOSURE PACKAGE").

          5.6  SEC Reports. Acquirer has filed all required forms, reports and
               -----------                                                    
documents with the SEC since its initial public offering (collectively, the "SEC
REPORTS"), each of which has complied in all material respects with all
applicable requirements of the Securities Act and the Securities Exchange 

                                      -33-
<PAGE>

Act of 1934, as amended, and the rules and regulations thereunder (the "EXCHANGE
ACT"), each as in effect on the date so filed. The audited consolidated
financial statements and unaudited consolidated interim financial statements of
Acquirer included in its Annual Report on Form 10-K and its Quarterly Reports on
Form 10-Q referred to above, were prepared in accordance with GAAP consistently
applied throughout the periods specified therein, are correct and complete, and
present fairly, in all material respects, the consolidated financial position
and results of operations of Acquirer for the periods specified therein, subject
in the case of the unaudited consolidated interim financial statements to an
absence of footnotes and to normal year-end audit adjustments. The Acquirer
Disclosure Package, this Agreement, the exhibits hereto and any certificates or
documents to be delivered to Target pursuant to this Agreement, when taken
together, do not contain any untrue statement of a material fact or omit to
state any material fact necessary in order to make the statements contained
herein and therein, in light of the circumstances under which such statements
were made, not misleading.

          5.7  Litigation. There is no Proceeding pending against Acquirer and,
               ----------                                                      
to Acquirer's Knowledge, there currently exists no set of circumstances which
Acquirer believes is likely to result in any Proceeding nor has any Proceeding
been threatened, that, if determined adversely to the interests of Acquirer,
would have a material adverse effect on Acquirer's ability to enter into the
Acquirer Merger Agreements or to effect the Merger or would have a Material
Adverse Effect on Acquirer.

          5.8  Compliance with Laws. Acquirer has complied with, is not in
               --------------------                                       
violation of, and has not received any notices of violations with respect to,
any federal, state or local statute, law or regulation with respect to the
conduct of its business, or the ownership or operation of its business, except
for failures to comply or violations which would not have a Material Adverse
Effect on Acquirer.

          5.9  No Brokers' Fees. Acquirer is not obligated for the payment of
               ----------------                                              
fees or expenses of any investment banker, broker, finder or other agent in
connection with the origin, negotiation or execution of this Agreement or the
Certificate of Merger or in connection with any transaction contemplated hereby
or thereby.

          5.10 Interim Operations of Merger Sub. Merger Sub was formed solely
               --------------------------------                              
for the purpose of engaging in the transactions contemplated by this Agreement,
has engaged in no other business activities and has conducted its operations
only as contemplated by this Agreement. All of the issued and outstanding shares
of Merger Sub capital stock are held by Acquirer.

          5.11 Merger Sub. Merger Sub hereby makes all of the same
               ----------                                         
representations and warranties as Acquirer set forth above in this Article 5,
except for Sections 5.5 and 5.10, by substituting "Merger Sub" for "Acquirer" in
the foregoing Article 5 text.

          5.12 Investment Intent; Access to Information. Acquirer is acquiring
               ----------------------------------------                       
the equity securities of the Surviving Corporation to be acquired by Acquirer as
a result of the Merger for Acquirer's own account and Acquirer has the present
intention of holding such equity securities for investment purposes and not with
a view to, or for sale in connection with, any public distribution of such
equity securities in violation of any federal or state securities law. Acquirer
has been furnished with or been given adequate access to information about
Target as it has requested.

          5.13 Registration Statement; Information Statement. The Form S-3
               ---------------------------------------------              
shall not, at the time the Form S-3 (including any amendments or supplements
thereto) is declared effective by the SEC, contain any untrue statement of a
material fact or omit to state any material fact necessary in order to make the
statements included therein, in light of the circumstances under which they were
made, not

                                      -34-
<PAGE>
 
misleading. If at any time prior to the Effective Date any event relating to
Acquirer, Merger Sub or any of their respective affiliates, officers or
directors should be discovered by Acquirer or Merger Sub which should be set
forth in an amendment to the Target Information Statement, Acquirer or Merger
Sub will promptly inform Target. Notwithstanding the foregoing, Acquirer and
Merger Sub make no representation or warranty with respect to any information
supplied by Target which is contained in any of the foregoing documents.

     6.   PRE-CLOSING PERIOD COVENANTS OF TARGET. During the period of time from
the date of this Agreement until the Closing Date (the "Pre-Closing Period"),
unless such other time period or date is explicitly specified, Target covenants
and agrees as follows:

          6.1  Access to Information.
               --------------------- 

               (a) Target will provide Acquirer and its attorneys and
accountants with full access (except with respect to technical trade secrets),
at reasonable times and in a reasonable manner, to all files, books and records
of Target (including without limitation all existing books, Contracts, leases,
licenses, records, tax returns, work papers and other documents and information
related to Target).

               (b) Target will provide Acquirer with copies of such existing
books, Contracts, leases, licenses, records, tax returns, work papers and other
documents and information related to Target as Acquirer may reasonably request
(with the understanding of all parties that all such access and investigation
shall be and remain subject to the confidentiality provisions of this Agreement
and, to the extent set forth in Section 3.2, the NDA).

               (c) Target will cause its accountants to cooperate with Acquirer
and its agents in making available all financial information reasonably
requested.

               (d) Unless otherwise mutually agreed to, all: (i) communications
regarding the Merger; (ii) requests for additional information; (iii) requests
for facility tours or management meetings; and (iv) discussions or questions
regarding procedures, will be submitted or directed to Hilmi Ozguc or Scott
Kliger.

          6.2  Advice of Changes; Duty to Update.
               --------------------------------- 

               (a) Target will promptly advise Acquirer in writing of: (i) the
discovery by Target of any event, condition, fact or circumstance occurring on
or prior to the date of this Agreement that would render any representation or
warranty by Target contained in this Agreement untrue or inaccurate in any
material respect; (ii) any event, condition, fact or circumstance occurring
subsequent to the date of this Agreement that would render any representation or
warranty by Target contained in this Agreement, if made on or as of the date of
such event or the Closing Date, untrue or inaccurate in any material respect;
(iii) any breach of any covenant or obligation of Target pursuant to this
Agreement or any other Target Merger Agreements; (iv) any event, condition, fact
or circumstance that may make the timely satisfaction of any of the conditions
set forth in Article 9 impossible or unlikely; and (v) any Material Adverse
Effect.

               (b) If any event, condition, fact or circumstances that is
required to be disclosed pursuant to Section 6.2(a) requires any material change
in the Target Disclosure Schedule, or if any such event, condition, fact or
circumstance would require such a change assuming the Target Disclosure Schedule
were dated as of the date of the occurrence, existence or discovery of such
event,

                                      -35-
<PAGE>
 
condition, fact or circumstances, then Target shall promptly deliver to Acquirer
an update to the Target Disclosure Schedule specifying such change.

               (c) Target will promptly update any relevant and material
information provided to Acquirer after the date of this Agreement pursuant to
the terms hereof.

          6.3  Maintenance of Business.
               ----------------------- 

               (a) Target will use its Best Efforts to conduct its operations
exclusively in the Ordinary Course of Business and in the same manner as such
operations have been conducted prior to the date of this Agreement.

               (b) Target will use its Best Efforts to carry on and preserve
intact its current business organization, keep available the services of its
current officers and employees and maintain its relations and goodwill with all
customers, suppliers, landlords, creditors, licensors, licensees, employees and
other Persons having business relationships with Target other than those
relationships which would not have a Material Adverse Effect.

               (c) Target will use its Best Efforts to maintain its equipment
and other assets in good working condition and repair according to the standards
it has maintained to the date of this Agreement, subject only to ordinary wear
and tear.

               (d) Target will use its Best Efforts to keep in full force all
insurance policies identified in Section 4.20 of the Target Disclosure Schedule
and obtain any additional insurance required consistent with past practices for
its business and property.

               (e) If Target becomes aware of a deterioration in the
relationship with any customer, supplier, landlord, creditor, licensor,
licensee, employee or other Person which would have a Material Adverse Effect,
it will promptly bring such information to the attention of Acquirer in writing
and, if requested by Acquirer, will exert its Best Efforts to restore the
relationship.

          6.4  Covenants.  Except as set forth in Schedule 4.16(b), Target will
               ---------                                                       
not, without the prior written consent of an officer of Acquirer, which consent
shall not be unreasonably withheld:

               (a) form any subsidiary or acquire any equity interest or other
interest in any other Entity;

               (b) amend the Target Certificate of Incorporation, its bylaws or
any other charter document;

               (c) sell, issue, grant or authorize the issuance or grant of: (i)
any shares of its capital stock of any class or other security (other than
pursuant to the exercise of currently outstanding options, warrants or
conversion of Preferred Stock); (ii) any option, call, warrant, obligation,
subscription, option or right to acquire any capital stock or any other
security, except for New Options; or (iii) any instrument convertible into or
exchangeable for any capital stock or other security;

               (d) declare, set aside or pay any dividend on, or make any other
distribution in respect of, Target's capital stock;

                                      -36-
<PAGE>
 
               (e) effect any split, combination or recapitalization of Target's
capital stock or any direct or indirect redemption, purchase or other
acquisition of Target's capital stock (other than pursuant to repurchase upon an
employee's termination of employment), or effect or be a party to any
transaction relating to a recapitalization, reclassification of shares, stock
split, reverse stock split or similar transaction;

               (f) merge, consolidate, acquire or otherwise reorganize with any
entity other than Merger Sub or Acquirer, or accept or enter into any
Acquisition Proposal;

               (g) sell, give away or otherwise transfer or dispose, or lease or
license any Target asset, including without limitation placing any Target IP
Right in the public domain or otherwise disposing of or transferring any Target
IP Right or licensing the source code of any Target IP Right, to any other
Person, except for products sold (subject to the $100,000 limit in Section
4.11(a)(v)) and Target IP Rights licensed by Target in the Ordinary Course of
Business;

               (h) pledge or hypothecate any of its assets or otherwise permit
any of its assets to become subject to any Encumbrance, except in the Ordinary
Course of Business and subject to the $100,000 limit in Section 4.11(a)(v);

               (i) make any capital expenditures, except for such capital
expenditures as in the aggregate, measured by invoice amount, do not exceed
$100,000 or were consented to by Acquirer in writing;

               (j) enter into any material lease or Contract for the purchase or
sale of any property, real or personal, except in the Ordinary Course of
Business consistent with past practice;

               (k) borrow any money other than in the Ordinary Course of
Business, but in any event not exceeding $10,000 (except that Target may borrow
up to $500,000, or a larger amount with the prior written consent of Acquirer,
under the $1.5 million Bridge Loan Agreement with Silicon Valley Bank);

               (l) make any loan or advance to any other Person, including
without limitation any Target Stockholder, officer or director (except for
normal employee travel advances in the Ordinary Course of Business);

               (m) guarantee or act as a surety for any obligation except for
the endorsement of checks and other negotiable instruments in the Ordinary
Course of Business, consistent with past practice, which are not material in
amount;

               (n) establish, amend or adopt any Target Employee Plan or Target
Benefit Arrangement (defined in Sections 4.18(d)-(e)), pay any bonus, make any
profit sharing or similar payment, increase the amount of the wages, salary,
commissions, fringe benefits or other compensation or remuneration payable, or
grant any severance or termination pay to any of its directors, officers or
employees, other than as required under agreements existing on the date of this
Agreement as disclosed in Section 4.11(b) of the Target Disclosure Schedule; or
enter into any new employment or consulting agreement with any such person;

               (o) write off as uncollectable, or establish any extraordinary
reserve with respect to, any account receivable or other indebtedness, except in
the Ordinary Course of Business;

                                      -37-
<PAGE>
 
               (p) forgive any debt or Encumbrance or otherwise release or waive
any right or claim, in any case, involving over $100,000;

               (q) amend or terminate any Contract or license to which it is a
party except those amended or terminated in the Ordinary Course of Business
which are not material in amount or effect;

               (r) terminate any of its Key Employees or management;

               (s) change any of its methods of accounting or accounting
practices in any respect (other than as required by GAAP);

               (t) agree to any audit assessment by any tax authority or file
any federal or state income or franchise tax return unless copies of such
returns have been delivered to Acquirer for its review prior to filing;

               (u) commence any litigation or dispute resolution process
involving over $100,000;

               (v) take any action that would be reasonably likely to interfere
with the tax-free reorganization status of the Merger;

               (w) enter into any transaction or take any other action outside
the Ordinary Course of Business; or

               (x) agree, commit or enter into any Contract to do any of the
things described in the preceding Sections 6.4(a) through 6.4(w).

          6.5  Target Stockholders' Approval. As promptly as practicable after
               -----------------------------                                  
the date of this Agreement and prior to the Effective Time, Target with the
cooperation of Acquirer will solicit consent of its stockholders to submit this
Agreement, the Merger and related matters for the consideration and approval of
the Target Stockholders (the "TARGET INFORMATION STATEMENT"), which approval has
been recommended by Target's Board of Directors and management.

          6.6  Regulatory Approvals. Target will execute and file, or join in
               --------------------                                          
the execution and filing, of any application or other document that may be
necessary in order to obtain the authorization, approval or consent of any
governmental body, federal, state, local or foreign which may be reasonably
required, or which Acquirer may reasonably request, in connection with the
consummation of the transactions contemplated by this Agreement, including
without limitation any required filings under the HSR Act. Target will use its
Best Efforts to obtain all such authorizations, approvals and consents.

          6.7  Necessary Consents. Target will use its Best Efforts to obtain
               ------------------                                            
such written consents and take such other actions as may be necessary or
appropriate in addition to those set forth in Sections 6.5 and 6.6 to allow the
consummation of the transactions contemplated by this Agreement and to allow
Acquirer to carry on Target's business after the Effective Time.

          6.8  Litigation. Target will notify Acquirer in writing promptly after
               ----------                                                       
learning of any material Proceedings by or before any court, board or
governmental agency, initiated by or against Target, or known by Target to be
threatened against it. If Target becomes subject to a review by the Internal
Revenue Service or any other taxing agency or authority for accounting periods
prior to the

                                      -38-
<PAGE>
 
Closing Date (including but not limited to any short tax year resulting from the
Merger), then Target acknowledges that Acquirer will be entitled to participate
in such review and that Target shall be responsible for payment of any
assessment. Target will not enter into any settlement or other stipulation with
respect to any such review without the written consent of Acquirer, which
consent will not be unreasonably withheld.

          6.9  No Other Negotiations.
               --------------------- 

               (a) From the date of this Agreement until the earlier of the
Effective Time or termination of this Agreement pursuant to its terms, Target
shall not (nor will Target permit any of its officers directors, stockholders,
agents, representatives or affiliates to, directly or indirectly: (i) solicit,
initiate, entertain, encourage or induce the making, submission or announcement
of, any Acquisition Proposal by any Person other than Acquirer, or (ii)
participate in any discussions or negotiations with, or disclose any non-public
information concerning Target to, or afford any access to the properties, books
or records of Target to, or otherwise assist or facilitate, or enter into any
agreement or understanding with, any Person other than Acquirer, in connection
with any Acquisition Proposal with respect to Target. Target will not, and will
instruct each of its representatives not to, directly or indirectly, make or
authorize any public statement, recommendation or solicitation in support of any
Acquisition Proposal by any Person other than Acquirer. Target shall immediately
cease and cause to be terminated any such contacts or negotiations with third
parties relating to any such transaction or proposed transaction. Without
limiting the generality of the foregoing, any violation of any of the
restrictions set forth in the preceding sentence by any representative of Target
shall be deemed to constitute a breach of this Section 6.9 by Target.

               (b) Target will notify Acquirer as promptly as practicable if it
receives any proposal or written inquiry or written request for Target in
connection with an Acquisition Proposal or potential Acquisition Proposal and,
as promptly as practicable, notify Acquirer of the significant terms and
conditions of any such Acquisition Proposal, as well as the identity of the
third party submitting such Acquisition Proposal.

          6.10 No Solicitation of Employees. In the event of Termination of
               ----------------------------                                
this Agreement, Target will not directly or indirectly: (a) initiate or maintain
contact (except for contacts made in the Ordinary Course of Business) with any
officer, director or employee of Acquirer regarding its business, operations,
prospects or finances, or (b) solicit or offer to hire any employee of Acquirer
or persuade any employee of Acquirer to terminate his or her employment before
November 23, 1999. An employment advertisement that is placed in a national or
regional publication and is directed at members of the public generally shall
not constitute a breach of clause "(b)" in the preceding sentence.

          6.11 Target Dissenting Stockholders. As promptly as practicable after
               ------------------------------                                  
the Target Stockholders' Meeting and prior to the Closing Date, Target shall
furnish Acquirer with the name and address of each holder of Dissenting Shares,
if any, and the number of Dissenting Shares owned by such holder.

          6.12 Stockholder's Questionnaire and Other Securities Laws
               -----------------------------------------------------
Compliance.
- ----------
               (a) Target will shall appoint a "purchaser's representative" (as
defined by Rule 501(h) of the Securities Act) and take any other actions
necessary to help qualify the issuance of the Exchange Shares as a "private
placement" under Regulation D and/or Section 4(2) of the Securities Act. 

                                      -39-
<PAGE>
 
Any out-of-pocket costs of such purchaser's representative shall be borne
equally by Acquirer on one hand and Target Stockholders on the other.

               (b) Acquirer and Target shall prepare, with the cooperation of
each other, a disclosure document for the offer and sale of the Exchange Shares
(the "INFORMATION STATEMENT"). Acquirer and Target shall use its Best Efforts to
cause the Information Statement to comply in all material respects with the
information requirements of Rule 502(b) of the Securities Act (and all other
applicable federal and state securities laws requirements) so that Acquirer may
avail itself of the Rule 506 exemption of the Securities Act if Acquirer so
chooses. Acquirer and Target shall use its Best Efforts, with the cooperation of
each other, to cause the Information Statement to be distributed to the Target
Stockholders as promptly as practicable after the date first written above.
Acquirer and Target shall update the Information Statement if it becomes aware
of any facts that might make it necessary or appropriate to amend or supplement
the Information Statement to make the statements contained or incorporated by
reference therein not misleading or to comply with applicable law.
Notwithstanding the foregoing, Target nor Acquirer shall include in the
Information Statement any information with respect to the other party or its
affiliates or associates without the consent of such other party, which consent
shall not be unreasonably withheld.

               (c) Target will use its Best Efforts to cause each Target
Stockholder to execute and deliver to Acquirer a certificate in substantially
the form attached as Exhibit J (the "TARGET STOCKHOLDER'S QUESTIONNAIRE").
                     ---------                                            

          6.13 Blue Sky Laws. Target shall use its Best Efforts to assist
               -------------                                             
Acquirer to the extent necessary to comply with the securities and Blue Sky laws
of all jurisdictions which are applicable in connection with the Merger.

          6.14 Tax Free Reorganization. Target will cooperate with the other
               -----------------------                                      
parties and take all reasonable actions as may be necessary to ensure that this
Agreement involves a tax-free plan of reorganization and that the Merger is
consummated in accordance with the provisions of Section 368(a)(1)(A) and
Section 368(a)(2)(E) of the Code.

          6.15 Best Efforts. Target will use its Best Efforts to satisfy or
               ------------                                                
cause to be satisfied all the conditions precedent which are set forth in
Article 9 on or before December 31, 1998, subject to any regulatory approvals or
requirements. Target will use its Best Efforts to cause the transactions
contemplated by this Agreement to be consummated, and, without limiting the
generality of the foregoing, to obtain all consents and authorizations of third
parties and to make all filings with, and give all notices to, third parties
that may be necessary or reasonably required on its part in order to effect the
transactions contemplated hereby.

     7.   PRE-CLOSING PERIOD COVENANTS OF ACQUIRER. During the Pre-Closing
Period, unless such other time period or date is explicitly specified, Acquirer
covenants and agrees as follows:

          7.1  Access to Information. Acquirer shall permit Target and its
               ---------------------                                      
attorneys and accountants to conduct due diligence to the extent that is
customary for private companies that are acquired by public companies. Unless
otherwise mutually agreed to, all: (a) communications regarding the Merger; (b)
requests for additional information; (c) requests for facility tours or
management meetings; and (d) discussions or questions regarding procedures, will
be submitted or directed to Charles Moldow.

                                      -40-
<PAGE>
 
          7.2  Advice of Changes; Duty to Update.
               --------------------------------- 

               (a) Acquirer will promptly advise Target in writing of: (i) the
discovery by Acquirer of any event, condition, fact or circumstance occurring on
or prior to the date of this Agreement that would render any representation or
warranty by Acquirer contained in this Agreement untrue or inaccurate in any
material respect; (ii) any event, condition, fact or circumstance occurring
subsequent to the date of this Agreement that would render any representation or
warranty by Acquirer contained in this Agreement, if made on or as of the date
of such event or the Closing Date, untrue or inaccurate in any material respect;
(iii) any breach of any covenant or obligation of Acquirer pursuant to this
Agreement or any other Acquirer Merger Agreements; (iv) any event, condition,
fact or circumstance that may make the timely satisfaction of any of the
conditions set forth in Article 8 impossible or unlikely; and (v) any Material
Adverse Effect.

               (b) If any event, condition, fact or circumstances that is
required to be disclosed pursuant to Section 7.2(a) requires any material change
in the Acquirer Disclosure Schedule, or if any such event, condition, fact or
circumstance would require such a change assuming the Acquirer Disclosure
Schedule were dated as of the date of the occurrence, existence or discovery of
such event, condition, fact or circumstances, then Acquirer shall promptly
deliver to Target an update to the Acquirer Disclosure Schedule specifying such
change.

               (c) Acquirer will promptly update any relevant and material
information provided to Target after the date hereof pursuant to the terms of
this Agreement. Acquirer will furnish to Target, promptly after filed with the
SEC, any reports filed with the SEC during the Pre-Closing Period.

          7.3  Conduct of Business. Acquirer will use its Best Efforts to
               -------------------                                       
preserve its business without material impairment.

          7.4  Regulatory Approvals. Acquirer will execute and file, or join in
               --------------------                                            
the execution and filing, of any application or other document that may be
necessary in order to obtain the authorization, approval or consent of any
governmental body, federal, state, local or foreign, which may be reasonably
required, or which Target may reasonably request, in connection with the
consummation of the transactions contemplated by this Agreement. Acquirer will
use its Best Efforts to obtain all such authorizations, approvals and consents.

          7.5  Necessary Consents. Acquirer will use its Best Efforts to obtain
               ------------------                                              
such written consents and take such other actions as may be necessary or
appropriate in addition to those set forth in Section 7.4 to allow the
consummation of the transactions contemplated hereby and to allow Acquirer to
carry on Target's business after the Closing.

          7.6  No Solicitation of Employees. In the event of Termination of this
               ----------------------------                                     
Agreement, Acquirer will not directly or indirectly: (a) initiate or maintain
contact (except for contacts made in the Ordinary Course of Business) with any
officer, director or employee of Target regarding its business, operations,
prospects or finances, or (b) solicit or offer to hire any employee of Target or
persuade any employee of Target to terminate his or her employment before
November 23, 1999. An employment advertisement that is placed in a national or
regional publication and is directed at members of the public generally shall
not constitute a breach of clause "(b)" in the preceding sentence.

          7.7  Blue Sky Laws. Acquirer shall take such steps as may be necessary
               -------------                                                    
to comply with the securities and Blue Sky laws of all jurisdictions which are
applicable in connection with the 

                                      -41-
<PAGE>
 
Merger; provided, however, that Acquirer shall not be required to qualify to do
business or execute a general consent to service of process in any jurisdiction.

          7.8  Tax Free Reorganization. Acquirer will cooperate with the other
               -----------------------                                        
parties and take all reasonable actions as may be necessary to ensure that this
Agreement involves a tax-free plan of reorganization and that the Merger is
consummated in accordance with the provisions of Section 368(a)(1)(A) and
Section 368(a)(2)(E) of the Code.

          7.9  Best Efforts. Acquirer will use its Best Efforts to satisfy or
               ------------                                                  
cause to be satisfied all the conditions precedent which are set forth in
Article 8 on or before December 31, 1998, subject to any regulatory approvals or
requirements. Acquirer will use its Best Efforts to cause the transactions
contemplated by this Agreement to be consummated.

     8.  CONDITIONS TO OBLIGATIONS OF TARGET. Target's obligations to consummate
the Merger and to take the other actions contemplated in this Agreement are
subject to the fulfillment or satisfaction, at or prior to the Closing, of each
of the following conditions (any one or more of which may be individually waived
by Target, but only in a writing signed by Target):

          8.1  Accuracy of Representations and Warranties. The representations
               ------------------------------------------                     
and warranties of Acquirer and Merger Sub set forth in Article 5 shall be true
and accurate in every material respect (other than to the extent any such change
is a result of the Merger) on and as of the Closing Date with the same force and
effect as if they had been made at the Closing (except for reps made as of a
date certain and for those disclosed in a Disclosure Schedule dated as of, and
delivered to Acquirer on, the Closing Date), and Target shall have received a
certificate to such effect executed by an officer of each of Acquirer and Merger
Sub on behalf of each of Acquirer and Merger Sub.

          8.2  Covenants. Acquirer shall have performed and complied in all
               ---------                                                   
material respects with all of its covenants contained in Article 7 at or prior
to the Closing, and Target shall have received a certificate to such effect
executed by an officer of Acquirer on behalf of Acquirer.

          8.3  Compliance with Law. There shall be no Order or threat of an
               -------------------                                         
Order, or any other fact or circumstance, which would prohibit or render illegal
the transactions contemplated by this Agreement.

          8.4  No Material Adverse Change. Acquirer shall not have experienced
               --------------------------                                     
any Material Adverse Change, other than to the extent that any such change is a
result of the proposed Merger. For the purpose of this Section 8.4, a decline in
the market price of Acquirer's common stock will not in and of itself constitute
a Material Adverse Change. Target shall have received a certificate to the
effect that no Material Adverse Change has occurred, executed by an officer of
Acquirer on behalf of Acquirer.

          8.5  Government Consents. There shall have been obtained at or prior
               -------------------                                            
to the Closing Date such permits or authorizations, and there shall have been
taken such other action, as may be required to consummate the Merger by any
regulatory authority having jurisdiction over the parties and the actions herein
proposed to be taken, including but not limited to requirements under applicable
federal and state securities laws.

          8.6  Consents. Target shall have received duly executed copies of all
               --------                                                        
material third-party consents and approvals contemplated by this Agreement
and/or the Target Disclosure Schedule for Target to consummate the transactions
contemplated by this Agreement or the Target Disclosure 

                                      -42-
<PAGE>
 
Schedule in form and substance reasonably satisfactory to Target, except for
such consents and approvals as Acquirer shall have agreed shall not be obtained.

          8.7   Documents. Target shall have received all written consents,
                ---------                                                  
assignments, waivers, authorizations or other certificates reasonably deemed
necessary by Target or Target's legal counsel for Target to consummate the
transactions contemplated hereby.

          8.8   Target Stockholder Approval. Target's Stockholders shall have
                ---------------------------                                  
approved and adopted this Agreement and the Merger by a favorable vote of the
requisite percentage of shares of outstanding capital stock of Target entitled
to vote on this Agreement and the Merger by written consent, which complied in
all respects with the Target Certificate of Incorporation, Target's bylaws and
other charter documents and all applicable law.

          8.9   Tax Representations. Target shall have received a certificate of
                -------------------                                             
tax representations substantially in the form of Exhibit E-1 executed by the
                                                 -----------                
Secretary of Acquirer on behalf of Acquirer and the Secretary of Merger Sub on
behalf of Merger Sub (the "Acquirer and Merger Sub Tax Representations").

          8.10  Legal Opinion. Target shall have received an opinion of
                -------------                                          
Acquirer's counsel, of Fenwick & West LLP, in form reasonably satisfactory to
Acquirer and its counsel and dated as of the Closing Date. In rendering such
opinion, Fenwick & West LLP shall be entitled to rely upon representations of
officers of Acquirer, Merger Sub and Target in the Acquirer and Merger Sub Tax
Representations, the Target Tax Representations and in the Merger Agreements.
Target shall have received an opinion of its counsel dated as of the Closing
Date that the Merger shall qualify as a tax-free reorganization under Section
368(a) of the Code (the "Tax Opinion"); provided, however, that if Acquirer and
Acquirer Sub have delivered the Tax Representations attached hereto as Exhibit
                                                                       -------
E-1, the delivery of the Tax Opinion shall not be a condition to closing.
- ---                                                                      

     9.  CONDITIONS TO OBLIGATIONS OF ACQUIRER. Acquirer's obligations to
consummate the Merger and to take the other actions contemplated in this
Agreement are subject to the fulfillment or satisfaction, at or prior to the
Closing, of each of the following conditions (any one or more of which may be
individually waived by Acquirer, but only in a writing signed by Acquirer):

          9.1   Accuracy of Representations and Warranties. The representations
                ------------------------------------------                     
and warranties by Target set forth in Article 4 shall be true and accurate in
every material respect on and as of the Closing with the same force and effect
as if they had been made at the Closing (except for representations that are
made as of a date certain), and Acquirer shall have received a certificate to
such effect executed by the President and Secretary of Target on behalf of
Target.

          9.2   Covenants. Target shall have performed and complied in all
                ---------                                                 
material respects with all of the covenants contained in Article 6 at or prior
to the Closing, and Acquirer shall have received a certificate to such effect
executed by the President and Secretary of Target on behalf of Target.

          9.3   Compliance with Law. There shall be no Order or threat of an
                -------------------                                         
Order, or any other fact or circumstance, which would prohibit or render illegal
the transactions contemplated by this Agreement.

                                      -43-
<PAGE>
 
          9.4   No Material Adverse Change. Target shall not have experienced 
                --------------------------                                     
any Material Adverse Change, other than to the extent that any such change is a
result of the proposed Merger. Acquirer shall have received a certificate to
such effect executed by the President and Secretary of Target on behalf of
Target.

          9.5   Government Consents. There shall have been obtained at or prior
                -------------------                                            
to the Closing such permits or authorizations, and there shall have been taken
such other action, as may be required to consummate the Merger by any regulatory
authority having jurisdiction over the parties and the actions herein proposed
to be taken, including but not limited to requirements under applicable federal
and state securities laws.

          9.6   Third-Party Consents; Assignments. Acquirer shall have received
                ---------------------------------                              
duly executed copies of all material third-party consents, approvals,
assignments, waivers, authorizations or other certificates contemplated by this
Agreement or the Target Disclosure Schedule or reasonably deemed necessary by
Acquirer's legal counsel to provide for the continuation in full force and
effect of any and all Material Contracts and leases of Target and for Acquirer
to consummate the transactions contemplated hereby in form and substance
reasonably satisfactory to Acquirer.  Acquirer shall have also received an
assignment of that certain patent application described in Section 4.10(b)3 of
the Target Disclosure Schedule.

          9.7   No Litigation. No litigation or Proceeding shall be threatened 
                -------------                                                  
or pending for the purpose or with the probable effect of enjoining or
preventing the consummation of any of the transactions contemplated by this
Agreement, or which would be reasonably expected to have a Material Adverse
Effect.

          9.8   Termination of Rights. Any registration rights (other than those
                ---------------------                                           
set forth in the Rights Agreement), rights of refusal, rights to any liquidation
preference, or redemption rights of any Target Stockholder shall have been
terminated or waived as of the Closing Date.

          9.9   Dissenting Shares. The aggregate number of Dissenting Shares
                -----------------                                           
shall not constitute more than five percent (5%) of the Total Target Shares.

          9.10  Target Stockholder Approval. Acquirer shall have received a copy
                ---------------------------                                     
of a resolution, certified by the Secretary of Target, to the effect that
Target's Stockholders have approved and adopted this Agreement and the Merger by
a favorable vote of the requisite percentage of shares of outstanding capital
stock of Target entitled to vote on this Agreement and the Merger by written
consent, which vote complied in all respects with the Target Certificate of
Incorporation, Target's bylaws and other charter documents and all applicable
law.

          9.11  Escrow Agreement. Acquirer shall have received the Escrow
                ----------------                                         
Agreement, executed by Target and State Street Bank (as the Representative for
all Target Stockholders), providing for the escrow of the Escrow Shares pursuant
to the terms and conditions of the Escrow Agreement in substantially the form
attached as Exhibit C.
            --------- 

          9.12  Rights Agreement. Acquirer shall have received the Rights
                ----------------                                         
Agreement, executed by each of the Target Stockholders, Key Employees, in
substantially the form attached as Exhibit D.
                                   --------- 

          9.13  Non-Compete and Other Non-Competition Agreements. Acquirer shall
                ------------------------------------------------                
have received from Target copies of non-competition agreements in substantially
the form attached as 

                                      -44-
<PAGE>
 
Exhibit F-1 entered into with all Target employees and copies of Non-Compete
- -----------
Agreements in substantially the form attached as Exhibit F-2 executed by each
                                                 -----------
of the Key Employees.

          9.14  Target Stockholder's Questionnaires. Acquirer shall have
                ------------------------------------                    
received Target Stockholder's Questionnaires from holders of all of the then-
outstanding Total Exchange Shares.

          9.15  Tax Representations. Acquirer shall have received a certificate
                -------------------                                            
of tax representations substantially in the form of Exhibit E-2 executed by the
                                                    -----------                
Secretary of Target on behalf of Target (the "Target Tax Representations").

          9.16  Legal Opinions. Acquirer shall have received an opinion of
                --------------                                            
Target's counsel, Ropes & Gray, reasonably satisfactory to Target and its
counsel dated as of the Closing Date. In rendering such opinions, Ropes & Gray
shall be entitled to rely upon representations of officers of Acquirer, Merger
Sub and Target in the Acquirer and Merger Sub Tax Representations, the Target
Tax Representations and in the Merger Agreements.

          9.17  Resignation of Directors. Acquirer shall have received an
                ------------------------                                 
executed letter from each Target director in office immediately prior to the
Effective Time of the Merger to the effect that each such director agrees to
resign his or her post as a director of the Surviving Corporation effective as
of the Effective Time of the Merger.

     10.  TERMINATION OF AGREEMENT AND CONTINUING OBLIGATIONS

          10.1  Right to Terminate.
                ------------------ 

                (a)  Voluntary Termination.
                     --------------------- 

                     This Agreement may be terminated by Acquirer and/or Target
and the Merger abandoned at any time prior to the Closing, whether before or
after approval by the Target Stockholders:

                     (i)    by the mutual written consent of both parties;

                     (ii)   by either party, if such party (including its
stockholders) is not in material breach of any representation, warranty,
covenant or agreement contained in this Agreement, and such other party is in
material breach of any representation, warranty, covenant or agreement contained
in this Agreement and such breaching party fails to cure such material breach
within fifteen (15) days of written notice of such material breach from the non-
breaching party;

                     (iii)  by either party, if any of the conditions precedent
to such party's obligations set forth in Article 8 (if Target) or Article 9 (if
Acquirer) have not been fulfilled or waived at and as of the Closing; or

                     (iv)   by either party, if there is a final nonappealable
Order of a federal or state court in effect preventing consummation of the
Merger, or if any statute, rule, regulation or Order is enacted, promulgated or
issued or deemed applicable to the Merger by any governmental body that would
make consummation of the Merger illegal.

                (b)  Automatic Termination. Unless otherwise agreed by Acquirer
                     ---------------------                                     
and Target, this Agreement will automatically terminate if all conditions to the
Closing have not been
                                      -45-
<PAGE>
 
satisfied or waived on or before February 15, 1999; provided, however, that the
right to terminate this Agreement under this Section 10.1 shall not be available
to any party if such party (or its stockholders') breach of any representation,
warranty, covenant or agreement contained in this Agreement has been the cause
of or resulted in the failure of the Closing to occur on or before such date.

          10.2  Termination Procedures. If either party wishes to terminate this
                ----------------------                                          
Agreement pursuant to Section 10.1, such party shall deliver to the other party
a written notice stating that such party is terminating this Agreement and
setting forth a brief description of the basis of such termination. Termination
of this Agreement will be effective upon the delivery of such notice.

          10.3  Continuing Obligations. Following any termination of this
                ----------------------                                   
Agreement pursuant to this Article 10, the parties to this Agreement will
continue to be liable for breaches of this Agreement prior to such termination
and will continue to perform their respective obligations under Sections 3.2,
6.10, 7.6 and 11.2. Except for the continuing obligations set forth in the
preceding sentence, the parties to this Agreement will be without any further
obligation or Liability upon any party in favor of the other party. However,
nothing in this Section 10.3 will limit the obligations of each party to use its
Best Efforts to cause the Merger to be consummated, as set forth in Sections
6.15 and 7.9.

          10.4  Acquirer shall comply with the reporting requirements of Section
13 and 15(d) of the Exchange Act and shall comply with all other public
information reporting requirements of the SEC (including Rule 144 promulgated by
the Commission under the Securities Act) from time to time in effect and
relating to the availability of an exemption from the Securities Act for the
sale of any Exchange Shares. Acquirer shall also cooperate with each holder of
any Exchange Shares in supplying such information as may be necessary for such
holder to complete and file any information reporting forms presently or
hereafter required by the SEC as a condition to the availability of a Rule 144
exemption from the Securities Act for the sale of any Exchange Shares.

          10.5  Directors and Officers Indemnification. From and after the
                --------------------------------------                    
Effective Time, Acquirer and Surviving Corporation shall indemnify, defend and
hold harmless each person who is now or has been at any time prior to the date
hereof, an officer or director of Target (collectively, the "D&O GROUP") to the
same extent that such officer or director is indemnified by Target pursuant to
the Target's charter and by-laws, as in effect on the date hereof, for acts or
omissions in such person's capacity as an officer or director of Target
occurring on or prior to the Effective Date, provided that (i) the D&O Group may
retain only one law firm to represent them with respect to any single action,
which firm shall be reasonably satisfactory to Acquirer and Surviving
Corporation, unless there is, under applicable standards of professional
conduct, conflict on any significant issue between the positions of any two or
more members of the D&O Group, (ii) Acquirer and Surviving Corporation shall pay
the reasonable fees and expenses of such counsel and (iii) Acquirer and
Surviving Corporation shall not be liable for any settlement effected without
their written consent.

     11.  SURVIVAL OF REPRESENTATIONS, INDEMNIFICATION AND REMEDIES

          11.1  Survival of Representations. All representations, warranties,
                ---------------------------                                  
covenants and agreements of Acquirer and Merger Sub contained in this Agreement
will remain operative and in full force and effect, regardless of any
investigation made by or on behalf of the parties to this Agreement, until the
earlier of the termination of this Agreement or the Escrow Period, whereupon
such representations, warranties, covenants and agreements will expire (except
for covenants that by their terms survive for a longer period). All
representations, warranties, covenants and agreements of Target contained in
this Agreement will remain operative and in full force and effect from the date
of this 

                                      -46-
<PAGE>
 
Agreement until the earlier of the termination of this Agreement or the
expiration of the Escrow Period, whereupon such representations, warranties,
covenants and agreements will expire (except for provisions that by their terms
survive for a longer period).

          11.2  Agreement by Target and Target Stockholders to Indemnify.
                -------------------------------------------------------- 
Subject to the limitations set forth in this Article 11, Target and each of the
Target Stockholders, severally but not jointly, hereby agree to indemnify and
hold harmless Acquirer and its officers, directors, agents and employees, and
each person, if any, who controls or may control Acquirer within the meaning of
the Securities Act from and against any and all claims, demands, actions, causes
of actions, losses, costs, damages, liabilities and expenses including, without
limitation, reasonable legal fees, reduced by any recovery under policies of
insurance ("TARGET DAMAGES"):

                (a) arising out of any misrepresentation or breach of or default
in connection with any of the representations, warranties, covenants and
agreements given or made by Target or Target Stockholder in this Agreement or
any agreement, certificate, document or instrument delivered by or on behalf of
Target pursuant to this Agreement;

                (b) resulting from any failure of any Target Stockholder: (i) to
have good, valid and marketable title to the issued and outstanding Target
Common Stock held by such stockholder, free and clear of Encumbrances other than
Permitted Encumbrances, or (ii) to have full right, capacity and authority to
vote such Target Common Stock in favor of the Merger and the other transactions
contemplated by the Certificate of Merger;

                (c) including without limitation any Liability pursuant to that
matter referred to in Schedule 4.22.

          11.3  Agreement by Acquirer to Indemnify. Subject to the limitations
                ----------------------------------                            
set forth in this Article 11, Acquirer hereby indemnify and hold harmless Target
and its officers, directors, agents and each of the Target Stockholders and
employees, and each person, if any, who controls or may control Target or any
Target Stockholder within the meaning of the Securities Act from and against any
and all claims, demands, actions, causes of actions, losses, costs, damages,
liabilities and expenses including, without limitation, reasonable legal fees,
reduced by any recovery under policies of insurance arising out of any
misrepresentation or breach of or default in connection with any of the
representations, warranties, covenants and agreements given or made by Acquirer
or Merger Sub in this Agreement or any agreement certificate, document or
instrument delivered by or on behalf of Acquirer or Merger Sub pursuant to this
Agreement or in connection with the New Target Option Plan (except for claims,
demands, actions, causes of actions, losses, costs, damages, liabilities and
expenses related to the valid approval thereof) ("ACQUIRER DAMAGES" and together
with Target Damages, "DAMAGES").

          11.4  Limitations on Liability; Exceptions.
                ------------------------------------ 

                (a) Limitations on Liability. Except as set forth in 
                    ------------------------                                   
Section 11.4(b), the Escrow Shares and any other assets deposited in escrow
pursuant to the Escrow Agreement shall be the Indemnified Persons' sole recourse
under Section 11.2, and no claim for Damages shall first be made under Section
11.2 after expiration of the Escrow Period. Except as set forth in Section
11.4(b), the aggregate amount of Acquirer Damages shall not exceed $7,500,000.
Except as set forth in Section 11.4(b), the remedies set forth in this Article
11 shall be the exclusive remedies of Acquirer and the other Indemnified Persons
against any Target Stockholder, but shall not be deemed to limit any other
remedies of Acquirer, legal or otherwise, against Target.

                                      -47-
<PAGE>
 
                (b) Exceptions to Limitations on Liability. None of the 
                    --------------------------------------                     
limitations set forth in Section 11.4(a) shall in any manner limit the liability
or indemnification obligations of the Target Stockholders or Acquirer with
respect to: (i) intentional fraud or willful misconduct, (ii) any breach of the
representations and warranties made in Section 4.5 or the first sentence of
Section 5.4 of this Agreement or (iii) any matter or claim described in Section
11.2(b) or (c) hereof. Any such liability, to the extent it exceeds the Escrow
Shares and any other assets deposited in escrow pursuant to the Escrow
Agreement, shall be several and not joint with respect to each Indemnified
Person.

                (c) Deductible. The indemnification provided for in this 
                    ----------                                                 
Article 11 shall not apply unless the aggregate Target Damages or Acquirer
Damages, as the case may be, for which one or more Indemnified Persons seeks
indemnification exceeds $250,000. In the event that such Damages do exceed
$250,000, Target Stockholders or Acquirer, as the case may be, will indemnify
only the amount of such Damages in excess of $250,000. The deductible in this
Section 11.3(c) shall not apply to any liability arising pursuant to Section
11.2(c) hereof.

          11.5  No Additional Representations. Neither Target nor Acquirer or
                -----------------------------                                
Merger Sub has made and is not making any representation, warranty, covenant or
agreement, express or implied, with respect to the matters contained in this
Agreement or the other Merger Agreements other than the explicit
representations, warranties, covenants and agreements set forth herein or
therein. Each Indemnifying Party acknowledge and agrees that it will not assert,
except pursuant to Article 11, any claim against Acquirer Merger Sub, Target or
the Target Stockholders or any of their respective partners, directors,
officers, employees, agents, stockholders, consultants, representatives,
controlling persons or an Affiliate of any of the foregoing, or any such persons
liable for any inaccuracies, misstatements or omissions with respect to
information furnished by such persons. Upon making any payment to an Indemnitee
for any indemnification claim pursuant to this Article 11, the Indemnifying
Party shall be subrogated, to the extent of such payment, to any rights which
the Indemnitee may have against other persons (other than another Indemnitee)
with respect to the subject matter underlying such indemnification claim.  Each
party shall take all reasonable steps to mitigate all Damages upon and after
becoming aware of any event which could reasonably be expected to give rise to
any Damages with respect to which indemnification may be requested hereunder.

     12.  MISCELLANEOUS

          12.1  Entire Agreement. The NDA (to the extent set forth in Section
                ----------------                                             
3.2 hereof) Merger Agreement and the exhibits to this Agreement constitute the
entire understanding and agreement of the parties to this Agreement with respect
to the subject matter hereof and supersede all prior and contemporaneous
agreements or understandings, inducements or conditions, express or implied,
written or oral, between the parties with respect to the subject matter hereof.
The express terms hereof control and supersede any course of performance or
usage of the trade inconsistent with any of the terms hereof.

          12.2  Assignment; Binding Upon Successors and Assigns. No party to
                -----------------------------------------------             
this Agreement may assign any of its rights or obligations hereunder without the
prior written consent of the other party hereto. This Agreement will be binding
upon and inure to the benefit of the parties hereto and their respective
successors and permitted assigns.

          12.3  No Third Party Beneficiaries. No provisions of this Agreement
                ----------------------------                                 
are intended, nor will be interpreted, to provide or create any third party
beneficiary rights or any other rights of any kind in any client, customer,
affiliate, stockholder, partner, employee or any party hereto or any other
Person unless specifically provided otherwise herein (including without
limitation Section 10.5 hereof), and, 

                                      -48-
<PAGE>
 
except as so provided, all provisions hereof will be personal solely between the
parties to this Agreement.

          12.4  Construction of Agreement. This Agreement has been negotiated by
                -------------------------                                       
the respective parties hereto and their attorneys and have been reviewed by each
party hereto. Accordingly, no ambiguity in the language of this Agreement will
be construed for or against either party.

          12.5  Section Headings. A reference to a section, article or exhibit
                ----------------                                              
will mean a section in, article in or exhibit to this Agreement unless otherwise
explicitly set forth. The titles and headings herein are for reference purposes
only and will not in any manner limit the construction of this Agreement, which
will be considered as a whole. Any item listed or described in any Schedule
pursuant to any Section of this Agreement shall be deemed to have been listed in
or incorporated by reference into each other Schedule where such listing or
description would be appropriate.

          12.6  No Joint Venture. Nothing contained in this Agreement will be
                ----------------                                             
deemed or construed as creating a joint venture or partnership between any of
the parties hereto. Except as explicitly specified herein, no party is by virtue
of this Agreement authorized as an agent, employee or legal representative of
any other party. Except as explicitly specified herein, no party will have the
power to control the activities and operations of any other and their status is,
and at all times, will continue to be, that of independent contractors with
respect to each other. Except as explicitly specified herein, no party will have
any power or authority to bind or commit any other. No party will hold itself
out as having any authority or relationship in contravention of this Section
12.6.

          12.7  Time of the Essence. Time is of the essence in the performance
                -------------------                                           
of each of the terms hereof with respect to the obligations and rights of each
party hereto.

          12.8  Amendment, Extension and Waivers. At any time prior to the
                --------------------------------                          
Effective Time, Acquirer, Merger Sub and Target may, to the extent legally
allowed: (a) extend the time for performance of any of the obligations of the
other party; (b) waive any inaccuracies in the representations and warranties
made to such party contained herein or in any document delivered pursuant
thereto; and (iii) waive compliance with any of the agreements, covenants or
conditions for the benefit of such party contained herein. Any term or provision
of this Agreement may be amended. Any agreement to any amendment, extension or
waiver will be valid only if set forth in writing and signed by the party to be
bound. The waiver by a party of any breach hereof or default in the performance
hereof will not be deemed to constitute a waiver of any other default or any
succeeding breach or default. The failure of any party to enforce any of the
provisions hereof will not be construed to be a waiver of the right of such
party thereafter to enforce such provisions. The Agreement may be amended by the
parties hereto at any time before or after approval of the Target Stockholders,
but, after such approval, no amendment will be made which by applicable law
requires the further approval of the Target Stockholders without obtaining such
further approval.

          12.9  Severability. If any provision of this Agreement or its
                ------------                                           
application will for any reason and to any extent be invalid or unenforceable,
the remainder of this Agreement and application of such provision to other
persons or circumstances will be interpreted so as reasonably to effect the
intent of the parties hereto. The parties will replace such void or
unenforceable provision of this Agreement with a valid and enforceable provision
that will achieve, to the extent possible, the economic, business and other
purposes of the void or unenforceable provision.

                                      -49-
<PAGE>
 
          12.10  Governing Law. The validity of this Agreement the construction
                 -------------                                                 
of its terms, and the interpretation and enforcement of the rights and duties of
the parties of this Agreement will be exclusively governed by and construed in
accordance with the internal laws of the State of Delaware, as applied to
agreements entered into solely between residents of and to be performed entirely
in the State of Delaware, without reference to that body of law relating to
conflicts of law or choice of law.

          12.11  Other Remedies. Except as otherwise provided herein, any and
                 --------------                                              
all remedies herein expressly conferred upon a party will be deemed cumulative
with and not exclusive of any other remedy conferred hereby or by law on such
party, and the exercise of any one remedy will not preclude the exercise of any
other.

          12.12  Jurisdiction. The parties consent to the personal jurisdiction
                 -------------                                                 
of and the venue in the state and federal courts within San Mateo County.

          12.13  Waiver of Trial by Jury. The parties waive any right they may
                 -----------------------                                      
have to a trial by jury in respect of any litigation based on, or arising out
of, under or in connection with, the Merger, this Agreement or any other Merger
Agreement, or any course of conduct, course of dealing, verbal or written
statement or other action of either of the parties hereto.

          12.14  Specific Performance. The parties acknowledge that irreparable
                 --------------------                                          
damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise
breached. The parties shall be entitled to an injunction(s) to prevent breaches
of this Agreement and to enforce specifically the terms and provisions hereof in
any court of the United States or any state having jurisdiction. This is in
addition to any other remedy to which the parties are entitled at law or in
equity.

          12.15  Attorneys' Fees. Should suit be brought to enforce or interpret
                 ---------------                                                
any part of this Agreement, the prevailing party will be entitled to recover, as
an element of the costs of suit and not as damages, reasonable attorneys' fees
to be fixed by the court (including without limitation, costs, expenses and fees
on any appeal). The prevailing party will be entitled to recover its costs of
suit, regardless of whether such suit proceeds to final judgment.

          12.16  Notices. All notices, instructions and other communications
                 -------                                                    
required or permitted to be given under this Agreement or necessary or
convenient in connection herewith must be in writing and shall be deemed given:
(a) when personally served or when delivered by telex or facsimile; (b) one
business day after deposit with an overnight courier service as shown by the
records of such delivery service; (c) on the business day of transmission if
such notice is sent by facsimile and the sender receives electronic confirmation
of receipt by the recipient; or (d) on the earlier of actual receipt or the
third business day following the date on which the notice is deposited in the
United States mail, first class certified or registered mail, postage prepaid,
addressed as follows:


If to Acquirer:       At Home Corporation
                      Attention:  General Counsel
                      425 Broadway Street
                      Redwood City, CA  94063
                      Fax Number:  (650) 569-5100

                                      -50-
<PAGE>
 
with a copy to:       Fenwick & West LLP
                      Attention: Gordon Davidson, Esq.
                      Two Palo Alto Square
                      Palo Alto, California 94306
                      Fax Number: (650) 494-1417


If to Target:         Narrative Communications Corp.
                      Attention:  President
                      1601 Trapelo Road
                      Waltham, Massachusetts  02451
                      Fax Number:  (781) 290-5312

with a copy to:       Ropes & Gray
                      Attention: Jane Goldstein, Esq.
                      One International Place
                      Boston, Massachusetts
                      Fax Number: (617) 951-7050

or to such other address as a party may have furnished to the other parties in
writing pursuant to this Section 12.16.

          12.17  Counterparts. This Agreement may be executed in any number of
                 ------------                                                 
counterparts, each of which will be an original as regards any party whose
signature appears thereon and all of which together will constitute one and the
same instrument. This Agreement will become binding when one or more
counterparts hereof, individually or taken together, will bear the signatures of
each of the parties reflected hereon as signatories.

                                      -51-
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.

 
AT HOME CORPORATION                NARRATIVE COMMUNICATIONS  CORP.
 
By:    /s/ Thomas Jermoluk         By:     /s/ Hilmi Ozguc
       ------------------------            -----------------------
 
Name:  Thomas Jermoluk             Name:   Hilmi Ozguc
 
Title: Chief Executive Officer     Title:  Chief Executive Officer
 

TRANSITORY CORPORATION


By:    /s/ Charles Moldow
       ------------------

Name:  Charles Moldow

Title: President



                [SIGNATURE PAGE TO AGREEMENT AND PLAN OF MERGER]

                                      -52-
<PAGE>
 
                               INDEX OF EXHIBITS

          Exhibits:
          -------- 

          A.      Form of Certificate of Merger                                
                                                                               
          B.      Target Certificate of Incorporation                          
                                                                               
          C.      Form of Escrow Agreement                                     
                                                                               
          D.      Form of Rights Agreement                                     
                                                                               
          E-1.    Acquirer and Merger Sub Tax Representations                  
                                                                               
          E-2.    Target Tax Representations                                   
                                                                               
          F-1.    Form of Existing Target Non-Competition Agreement            
                                                                               
          F-2.    Form of Non-Competition Agreement                            
                                                                               
          G.      New Target Option Plan                                       
                                                                               
          H.      Target Stockholder Voting Agreement                          
                                                                               
          I.      Target Financial Statements                                  
                                                                               
          J.      Form of Target Stockholder's Questionnaire                    

 


<PAGE>
 
                                                                     EXHIBIT 2.2

                             CERTIFICATE OF MERGER
                               FOR THE MERGER OF
                            TRANSITORY CORPORATION
                                 WITH AND INTO
                        NARRATIVE COMMUNICATIONS CORP.
                                        

                _______________________________________________

                        PURSUANT TO SECTION 251 OF THE
                       DELAWARE GENERAL CORPORATION LAW
                _______________________________________________
                                        

     Narrative Communications Corp., a Delaware corporation ("NARRATIVE"), does
hereby certify to the following facts relating to the merger (the "MERGER") of
Transitory Corporation, a Delaware corporation ("TRANSITORY"), with and into
Narrative, with Narrative to be the surviving corporation of the Merger (the
"SURVIVING CORPORATION"):


FIRST:    Narrative and Transitory are each a corporation incorporated pursuant
          to the laws of the State of Delaware. Narrative and Transitory are the
          constituent corporations in the Merger.

SECOND:   An Agreement and Plan of Merger has been approved, adopted, certified,
          executed and acknowledged by Narrative and by Transitory in accordance
          with the provisions of subsections (b) and (c) of Section 251 of the
          Delaware General Corporation Law ("DGCL").

THIRD:    The Surviving Corporation will be Narrative Communications Corp.

FOURTH:   Upon the effectiveness of the Merger, the certificate of incorporation
          of Narrative shall be amended to read in its entirety as set forth in
          Exhibit A attached hereto.
          ---------                 

FIFTH:    The executed Agreement and Plan of Merger is on file at the principal
          place of business of Narrative, the Surviving Corporation, at 1601
          Trapelo Road, Waltham, MA 02451.

SIXTH:    A copy of the executed Agreement and Plan of Merger will be furnished
          by Narrative, the Surviving Corporation, on request and without cost,
          to any stockholder of any constituent corporation of the Merger.
<PAGE>
 
     IN WITNESS WHEREOF, Narrative has caused this Certificate to be executed by
its duly authorized President as of December 30, 1998.


                                        NARRATIVE               
                                        COMMUNICATIONS CORP.,   
                                        a Delaware corporation  
                                                                
                                                                
                                        By:    /s/ Scott Kliger   
                                               ---------------------------   
                                                                
                                        Name:  Scott Kliger     
                                                                
                                        Title: President        



                   [SIGNATURE PAGE TO CERTIFICATE OF MERGER]

                                      -2-

<PAGE>
 
                                                                     EXHIBIT 2.3

                                ESCROW AGREEMENT


     This ESCROW AGREEMENT (the "AGREEMENT") is entered into as of December 30,
1998 (the "EFFECTIVE DATE"), by and among At Home Corporation, a Delaware
corporation ("ACQUIRER"), Charles M. Hazard, Jr., as representative (the
"REPRESENTATIVE") of all of the holders of capital stock (the "STOCKHOLDERS") of
Narrative Communications Corp., a Delaware corporation ("TARGET"), and State
Street Bank and Trust Company of California, N.A., as Escrow Agent (the "ESCROW
AGENT").

     WHEREAS, Acquirer, Target and Transitory Corporation, a Delaware
corporation and wholly owned subsidiary of Acquirer ("MERGER SUB"), have entered
into an Agreement and Plan of Merger (the "PLAN") dated as of December 17, 1998,
pursuant to which Merger Sub will merge with and into Target in a reverse
triangular merger (the "MERGER"), with Target to be the surviving corporation of
the Merger.  Capitalized terms used in this Agreement and not otherwise defined
herein, including without limitation "EFFECTIVE TIME", "EXCHANGE AGENT",
"EXCHANGE SHARES", "TOTAL EXCHANGE SHARES" and "TOTAL TARGET SHARES", shall have
the meanings given to such terms in the Plan;

     WHEREAS, Section 2.4 of the Plan provides that, at the Effective Time,
Acquirer will be entitled to withhold from the Stockholders a certain percentage
of the shares of Acquirer Series A Common Stock issuable to the Stockholders at
the Effective Time for the purpose of securing the Stockholders' indemnification
obligations to Acquirer and the other Indemnified Persons pursuant to the terms
and conditions set forth in Article 11 of the Plan and in this Agreement;

     WHEREAS, the Stockholders and the Representative are entering into this
Agreement as a material inducement and consideration for Acquirer to enter into
the Plan and to consummate the transactions contemplated therein and as a
material inducement and condition precedent to consummation of the Merger; and

     WHEREAS, the parties desire to set forth in this Agreement the terms and
conditions pursuant to which the Escrow Shares shall be deposited in, held in
and delivered from an escrow account.

     NOW, THEREFORE, in consideration of the facts stated in the foregoing
recitals and the mutual promises hereinafter set forth, the parties hereby agree
as follows: 
<PAGE>
 
  1.  ESCROW AND INDEMNIFICATION

      1.1  Escrow.
           ------ 

           (a) Definitions of Primary Terms.
               ---------------------------- 

               (i)   The term "ESCROW SHARES" is defined as the Exchange Shares
that Acquirer shall withhold from the Stockholders, which shall consist of a
percentage (the "ESCROW PERCENTAGE") of the Exchange Shares to be issued to all
Stockholders after the Effective Time and upon the surrender of their Target
Certificates, rounded down to the nearest whole number of shares. The Escrow
Percentage shall be expressed as a fraction, the numerator of which is 10% of
the Total Exchange Shares (defined in Section 2.2(a)(ii)(B) of the Plan) and the
denominator of which is the number of Exchange Shares actually issuable in the
Merger to the Stockholders after the Effective Time and upon the surrender of
their Target Certificates. The term Escrow Shares shall also refer to Additional
Escrow Shares (defined in Section 2.1(b), although the Additional Escrow Shares
may, in certain instances, be referred to separately in this Agreement) and the
stock certificates representing the Escrow Shares and Additional Escrow Shares,
when appropriate.

               (ii)  The term "ESCROW PERIOD" is defined as that time period
beginning at the Effective Time and ending on the "RELEASE DATE", which shall be
ten (10) business days after publication of audited consolidated financial
statements of Acquirer for the fiscal year ended December 31, 1999, but in any
event no later than March 31, 2000.

           (b) Deposit of Escrow Shares.  On the Closing Date, Acquirer will 
               ------------------------
deposit with the Exchange Agent the Exchange Shares, including shares to be
subsequently held in escrow. The Exchange Agent will give the Escrow Agent
prompt written notice of the Closing Date and Effective Time of the Merger.
Promptly after the Effective Time, the Exchange Agent will issue to the Escrow
Agent the Escrow Shares to be withheld from the Stockholders upon the surrender
of their Target Certificates, each registered in the name of the applicable
Stockholder.

           (c) Delivery of Stock Powers.  Promptly after the Effective Time, 
               ------------------------
but in any event within ten (10) business days after the Effective Time, each
Stockholder will deliver to the Escrow Agent a duly endorsed stock power (a
"STOCK POWER") substantially in the form attached as Exhibit A. In the event any
                                                     ---------         
Additional Escrow Shares (defined in Section 2.1(b)) are issued, or if the
Escrow Agent reasonably requires an additional Stock Power(s) to effect a
transfer, each Stockholder will, upon request, promptly execute and deliver an
additional Stock Power to the Escrow Agent.

           (d) Legends.  Stock certificates representing Escrow Shares will
               -------
(until they are released to the Stockholders or Acquirer in accordance with this
Agreement) bear the following legend indicating that they are subject to this
Agreement:

                                       2
<PAGE>
 
     "THE SECURITIES REPRESENTED HEREBY MAY BE OFFERED, SOLD OR
     OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED ONLY IN ACCORDANCE
     WITH THE TERMS OF AN ESCROW AGREEMENT AMONG THE ISSUER, THE
     HOLDER THEREOF AND STATE STREET BANK AND TRUST COMPANY OF
     CALIFORNIA, N.A. A COPY OF SUCH AGREEMENT IS ON FILE AT THE
     PRINCIPAL OFFICE OF THE ISSUER."

          1.2  Indemnification.  Acquirer and the other Indemnified Persons are
               ---------------                                                 
entitled to be indemnified by the Stockholders pursuant to the terms of Article
11 of the Plan against any Target Damages during the Escrow Period.  All claims
for Target Damages under Article 11 of the Plan must be initiated prior to the
expiration of the Escrow Period.  Each of the Stockholders has agreed to the use
of the Escrow Shares as collateral for these indemnity obligations, subject to
the terms and limitations set forth in Article 11 of the Plan and in this
Agreement.

     2.   OWNERSHIP INTERESTS IN AND RELEASE OF
          THE ESCROW SHARES

          2.1  Stockholders' Interests in the Escrow Shares.
               -------------------------------------------- 

               (a) Individual Stockholders' Interests. The Escrow Shares shall
                   ----------------------------------
be evidenced by certificates issued in the name of each Stockholder.  All of the
Escrow Shares shall be deemed to be issued and outstanding capital stock of
Acquirer.

               (b) Dividends. If Acquirer declares any cash dividends, dividends
                   ---------
payable in other property or other distributions of any kind with respect to
Escrow Shares held by the Escrow Agent, Acquirer will issue such distributions
directly to the Stockholders. Stock dividends that are issued in order to effect
a stock split of Acquirer's Series A Common Stock on Escrow Shares declared
during the Escrow Period ("ADDITIONAL ESCROW SHARES") will be delivered promptly
to the Escrow Agent, held in escrow and distributed to the Stockholders in the
same manner and in the same proportions as the Escrow Shares. For all purposes
of this Agreement, the Additional Escrow Shares will be treated the same as the
Escrow Shares. Unless and until the Escrow Agent receives certificates
representing Additional Escrow Shares, it may assume without inquiry that no
Additional Escrow Shares have been, or are required to be, issued and that the
stock certificates that the Escrow Agent possesses represent all of the Escrow
Shares.

               (c) Voting and Other Rights of Ownership. While the Escrow Shares
                   ------------------------------------
remain in the possession of the Escrow Agent, each Stockholder beneficially
owning Escrow Shares will retain and will be able to exercise with respect to
such Escrow Shares: (i) voting rights, and (ii) all other incidents of ownership
of such Escrow Shares which are not inconsistent with the terms of this
Agreement, including the right to cause the tender of such Escrow Shares in a
tender offer for Acquirer Series A Common Stock. Acquirer, not the Escrow Agent,
will be responsible for furnishing any proxy forms or other information
generally distributed by Acquirer to its stockholders.

                                       3
<PAGE>
 
          (d) No Transfers or Encumbrances.  Prior to the release of the Escrow
              ----------------------------                                     
Shares by the Escrow Agent and delivery to each Stockholder pursuant to Section
2.3, Stockholders may not sell, assign or otherwise transfer, nor place any
Encumbrance on, any Escrow Shares or any beneficial interest therein, except:
(i) for entity stockholders, to limited partners or members of such
Stockholders; (ii) transfers made for estate planning purposes; (iii) transfers
by operation of law or laws of descent and distribution; and (iv) in connection
with a tender offer for Acquirer's Series A Common Stock.  In the case of any
permitted transfer, the transferee will be subject to all terms and provisions
of this Agreement. Also, prior to the release of the Escrow Shares by the Escrow
Agent and delivery to each  Stockholder pursuant to Section 2.3, no Escrow
Shares nor any beneficial interest therein be taken or reached by any legal or
equitable process in satisfaction of any debt or other liability of a
Stockholder, except to satisfy such Stockholder's obligations under Article 11
of the Plan.  The Escrow Agent shall have no responsibility for determining or
enforcing compliance with this paragraph, other than by retaining possession of
the Escrow Shares.

          (e) Individual Stockholder Liability.  The maximum liability for any
              --------------------------------                                
Target Damages under Section 11.2 of the Plan is set forth in Section 11.4 of
the Plan.  Payments for finally determined Claims (defined in Section 3.1) shall
be deducted from the Escrow Shares of each Stockholder pro rata in proportion to
each Stockholder's respective percentage interest in the Escrow Shares;
provided, however, that the preceding limitation on Stockholder liability shall
not apply to damages set forth in Section 11.4(b) of the Plan and Acquirer
and/or the Indemnified Persons may hold the Stockholders liable (severally but
not jointly) to the full extent of any such damages.

     2.2  Escrow Ledger.
          ------------- 

          (a) Required Information.  The Escrow Agent shall create and maintain
              --------------------                                             
a written record, in substantially the form attached as Exhibit B (the "ESCROW
                                                        ---------             
LEDGER") of: (1) each Stockholder's name and address; (2) each Stockholder's
interest in the Escrow Shares by number of shares; (3) each Stockholder's
interest in other assets held in escrow; (4) each Stockholder's percentage
interest in the total Escrow Shares; (5) each Stockholder's interest in Escrow
Shares subject to pending Contested Claims (defined in Section 4.3); and (6)
Escrow Shares to be released to each Stockholder on the Release Date.  The
Escrow Ledger shall also reflect the total number of Escrow Shares remaining in
escrow.

          (b) Adjustments to the Ledger.  The Escrow Agent shall adjust the
              -------------------------                                    
Escrow Ledger to reflect changes in each Stockholder's interests in the Escrow
Shares.  This duty will continue until the Escrow Agent is required to deliver
each Stockholder's Escrow Shares pursuant to Section 2.3.  Absent manifest
error, all of the Escrow Agent's determinations as to the Escrow Ledger shall be
binding and conclusive on all parties to this Agreement.  Adjustments to the
Ledger shall include, but are not limited to, the following:

              (i) Adjustments for Capital Changes.  The Escrow Agent shall 
                  -------------------------------
adjust the Escrow Ledger to reflect the issuance of Additional Escrow Shares
pursuant to Section 2.1(b).

                                       4
<PAGE>
 
               (ii)  Adjustments for Claims. The Escrow Agent shall deduct
                     ----------------------
Escrow Shares that become subject to pending Contested Claims of Acquirer or
other Indemnified Persons from column 6 of each Stockholder's account and add
such Escrow Shares to column 5 of each Stockholder's account. The Escrow Agent
shall deduct Escrow Shares that are charged and allocated to each Stockholder's
account pursuant to Article 4 in satisfaction of Claims by Acquirer or other
Indemnified Persons from columns 2-6, as appropriate.

       2.3  Release of Escrow Shares to Stockholders.
            ---------------------------------------- 

            (a) Release of Escrow Shares Generally.  On the Release Date, in
                ----------------------------------                          
accordance with Section 2.3(c), the Escrow Agent shall certify the Escrow Share
balances reflected in the Escrow Ledger as of that date and release the
appropriate number of Escrow Shares to each Stockholder as designated in column
6 of the Escrow Ledger, which shall equal such Stockholder's original Escrow
Shares and Additional Escrow Shares, minus: (i) any Escrow Shares attributable
to such Stockholder that were returned to Acquirer in accordance with Article 4
in satisfaction of a Claim(s) by Acquirer or another Indemnified Person(s), and
(ii) any Escrow Shares attributable to such Stockholder that are subject to
pending Claims of Acquirer or other Indemnified Persons, to be held pursuant to
Section 2.3(b).

            (b) Escrow Shares Subject to Pending Claims.
                --------------------------------------- 
 
                (i)   Upon the Release Date and thereafter, the Escrow Agent
shall continue to hold any Escrow Shares that are subject to pending Claims
until the thirty day period in Section 4.2 expires. At that time, the Escrow
Agent shall, as appropriate, either return the Escrow Shares subject to such
claim pursuant to Section 4.2, or continue to hold the Escrow Shares subject to
such Claim pursuant to Section 2.3(b)(ii).

                (ii)  Upon the Release Date and thereafter, the Escrow Agent
shall continue to hold any Escrow Shares that are subject to Contested Claims of
Acquirer or other Indemnified Persons, as designated in column 5 of the Escrow
Ledger, until the Escrow Agent receives written notice of resolution of each
specific Claim pursuant to Section 4.3(h). After the Escrow Agent receives such
notice, in accordance with Section 2.3(c), the Escrow Agent shall: (a) either
deliver or instruct the Exchange Agent to deliver to each Stockholder the number
of Escrow Shares, if any, due to each Stockholder in accordance with the
resolution of the Claim; (b) if applicable, charge and allocate Escrow Shares to
each Stockholder in satisfaction of the resolution of the Claim and either
return or instruct the Exchange Agent to return such Escrow Shares back to
Acquirer; and (c) notify the Representative in writing of any deduction of
Escrow Shares as promptly as reasonably practicable. The Escrow Agent shall make
the appropriate entries in the Escrow Ledger.

            (c) Procedure for Release and Delivery.  Within seven (7) business
                ----------------------------------                            
days after the Release Date (or with respect to Escrow Shares held pursuant to
Section 2.3(b), within seven (7) business days after the Escrow Agent's receipt
of written notice of a resolution of a Claim pursuant to Section 4.3(h)), the
Escrow Agent shall deliver, or instruct the Exchange 

                                       5
<PAGE>
 
Agent to deliver, the Escrow Shares to each Stockholder by mailing (by
registered or certified mail, return receipt requested) by express courier to
the address set forth opposite each Stockholder's name on the Escrow Ledger (or
such other address as provided in writing by the Representative to the Escrow
Agent). No fractional Escrow Shares will be delivered; instead, Acquirer will
pay cash in lieu of any fractions of Escrow Shares in an amount equal to the
product of such fraction multiplied by the value of an Escrow Share as
determined in accordance with Section 4.5. The Escrow Agent and Acquirer will
cooperate to determine the amounts of such cash payments in lieu of fractional
shares to be made, and Acquirer will notify the Escrow Agent after such payments
have been made.

     3.   CLAIMS

          3.1  "Claim" Defined.  As used herein, the term "CLAIM" means a claim
               ---------------                                                 
for indemnification under Article 11 of the Plan made by Acquirer or by any
other Indemnified Person.  Acquirer agrees that it will make Claims only as
permitted by Article 11 of the Plan.
 
          3.2  Notice of Claim.
               --------------- 
 
               (a) When a Notice of Claim is Required.  An officer of Acquirer
                   ----------------------------------
shall execute and deliver written notice of a Claim (a "NOTICE OF CLAIM") to the
Representative and the Escrow Agent as promptly as reasonably practicable, and
in no event after the Release Date, upon:
 
                   (i)   Acquirer's discovery of any inaccuracy,
misrepresentation or breach of or default in connection with any of the
provisions of Section 11.2 of the Plan; or
 
                   (ii)  Acquirer's receipt of verbal or written notice of an
Order or Proceeding brought by any third Person against Acquirer and/or any
Indemnified Person that is based upon or includes assertions that would, if
true, constitute an inaccuracy, misrepresentation, breach of or default in
connection with any of the provisions of Section 11.2 of the Plan, (a "THIRD
PARTY PROCEEDING");

               (b) Failure to Provide Notice of Claim.  Failure to provide such
                   ----------------------------------                          
notice in a timely manner shall not reduce Acquirer's indemnification rights or
the indemnification obligations of the Stockholders in this Agreement and under
the Plan, unless the failure to provide such notice materially impairs the
indemnifying party's ability to defend the Claim, and then only to the extent of
such impairment.

          3.3  Contents of Each Notice of Claim.  Each Notice of Claim given by
               --------------------------------                                
Acquirer pursuant to Section 3.2 shall be set forth in writing and shall contain
the following information to the extent it is reasonably available to Acquirer:
 
               (a) Statement of Damages.  The statement of damages shall 
                   --------------------    
include: (i) the amount of Target Damages that Acquirer believes has actually
been incurred by Acquirer 

                                       6
<PAGE>
 
and/or any other Indemnified Person in connection with the Claim, reduced by any
recovery under policies of insurance, and (ii) Acquirer's good faith estimate of
the reasonably foreseeable maximum amount of the alleged Target Damages that
will ultimately be incurred by Acquirer and/or any other Indemnified Person in
connection with such Claim, including without limitation any Target Damages from
a potential Third Party Proceeding.

               (b) Statement of Basis for Damages.  The statement of basis for
                   ------------------------------                             
damages shall include: (i) a brief description, in reasonable detail, of the
facts, circumstances or events giving rise to the alleged Target Damages based
on Acquirer's or any other affected Indemnified Person's good faith belief, and
(ii) if applicable, specific references to the provisions of the Plan alleged to
have been breached.

          3.4  Requirement of Resolution of Claims.  The Escrow Agent shall not
               -----------------------------------                             
act regarding any of the Escrow Shares held pursuant to a Notice of Claim until
such Notice of Claim has been resolved in accordance with Article 4 and, in the
case of a Contested Claim, it receives appropriate notice pursuant to Section
4.3(h).
  
     4.   RESOLUTION OF CLAIMS
 
     Any Notice of Claim received by the Representative and the Escrow Agent
pursuant to Article 3 shall be resolved as follows:

          4.1  Third Party Proceedings.  Acquirer shall have the right, at the
               -----------------------                                        
Stockholders' expense, to select counsel in connection with conducting the
defense or handling each Third Party Proceeding and defend or handle such Third
Party Proceeding in such manner as Acquirer may deem reasonably appropriate
(including without limitation settlement or compromise of such Third Party
Proceeding); provided, however, that Acquirer: (a) shall keep the Representative
timely apprised of the status of such Third Party Proceeding, and (b) shall not
settle or compromise such Third Party Proceeding without the prior written
consent of the Representative (which consent shall not be unreasonably
withheld).  The reasonable costs and expenses incurred by Acquirer in connection
with such defense (including but not limited to reasonable attorneys' fees,
other professionals' and experts' fees and court or arbitration costs) shall be
included in the Target Damages for which Acquirer may seek indemnity pursuant to
a Claim made by Acquirer or an Indemnified Person hereunder.  If Acquirer
defends or handles the Third Party Proceeding, the Representative and the
Stockholders shall cooperate with Acquirer and shall be entitled to participate
in the defense or handling of the Third Party Proceeding with their own counsel
and at their own expense.
 
          4.2  Uncontested Claims.  If, within thirty calendar days after the
               ------------------                                            
Representative receives a Notice of Claim, the Representative does not contest
such Notice of Claim (an "UNCONTESTED CLAIM") in a written notice delivered to
the Escrow Agent pursuant to Section 4.3, then the Escrow Agent shall: (a)
immediately charge and allocate against each Stockholder's accounts in the
Escrow Ledger the number of Escrow Shares required, pursuant to Section 4.5, to
satisfy the amount of Target Damages specified in such Notice of Claim (reduced

                                       7
<PAGE>
 
by any recovery to date under policies of insurance not reflected in the Notice
of Claim); (b) update the Escrow Ledger to reflect the effect of the deduction
pursuant to Section 2.2(b)(ii); and (c) notify the Representative in writing of
the deduction of Escrow Shares as promptly as reasonably practicable.  The
number of Escrow Shares deducted hereunder shall be charged to and allocated
among the Stockholders pro rata according to each Stockholder's percentage
share, as set forth in column 4 of the Escrow Ledger.
 
          4.3  Contested Claims.  If Acquirer and the Escrow Agent receive a
               ----------------                                             
written notice contesting all, or a portion of, a Notice of Claim within the
thirty day period described in Section 4.2 (a "CONTESTED CLAIM"), then the
parties will work together in good faith to resolve their dispute for up to
thirty (30) days.  If the Contested Claim is still not resolved, then: (a) such
Contested Claim shall be resolved by binding arbitration in accordance with the
provisions of this Section 4.3, and (b) the Escrow Agent shall continue to hold
the number of Escrow Shares sufficient, pursuant to Section 4.5, to satisfy the
maximum potential award to all Indemnified Persons under such Claim.  Any
portion of the Notice of Claim that is not contested by the Representative in
accordance with the foregoing provisions of this Section 4.3 shall be resolved
as an Uncontested Claim in accordance with Section 4.2.  Resolution of contested
claims shall be subject to the following rules:
 
               (a) Arbitration.  The parties agree that any Contested Claim 
                   -----------
shall be submitted to mandatory, final and binding arbitration before
J.A.M.S./ENDISPUTE or its successor ("J.A.M.S."), pursuant to the United States
Arbitration Act, 9 U.S.C. (S) 1 et seq. and that any such arbitration shall be
conducted in San Mateo County, California. Either Acquirer or the Representative
may commence the arbitration process called for by this Agreement by filing a
written demand for arbitration with J.A.M.S. and giving a copy of such demand to
each of the other parties to this Agreement. The arbitration shall be conducted
in accordance with the provisions of J.A.M.S's streamlined arbitration rules and
procedures in effect at the time of filing of the demand for arbitration,
subject to the provisions of this Section 4.3. The parties will cooperate with
J.A.M.S. and with each other in promptly selecting an arbitrator from J.A.M.S.'s
panel of arbitrators in accordance with J.A.M.S.'s procedures for selecting
arbitrators, and in scheduling the arbitration proceedings in order to fulfill
the provisions, purposes and intent of this Agreement. The parties covenant that
they will participate in the arbitration in good faith, and that they will share
in its costs in accordance with Section 4.3(b).
 
               (b) Payment of Costs.  Each party will bear its own fees and
                   ----------------
expenses in connection with the arbitration, except that Acquirer and the
Stockholders shall each bear 50% of the expense of deposits and advances
required by the arbitrator; provided, however, that in the event that the
arbitrator finds that one party has substantially prevailed in the arbitration,
the prevailing party shall be entitled to an award of attorney's fees and costs,
arbitrator's fees and costs and all other costs of arbitration from the losing
party.

               (c) Award.
                   ----- 
 
                   (i) Upon the conclusion of any arbitration proceedings
hereunder, the arbitrator shall render findings of fact and conclusions of law
and a final written 

                                       8
<PAGE>
 
arbitration award setting forth the basis and reasons for any decision reached
(the "FINAL AWARD") and shall deliver such documents to the Escrow Agent, the
Representative and Acquirer. The Final Award shall constitute a conclusive
determination of all issues in question, binding upon the Representative, the
Stockholders and Acquirer, and shall not be contested by the Representative, the
Stockholders or Acquirer. Awards for Target Damages shall be subject to the
provisions of Section 11.4 of the Plan.

           (ii)   To the extent that the Final Award determines that Acquirer or
any other Indemnified Person has actually incurred Target Damages in connection
with the Contested Claim through the date of the Final Award ("INCURRED
DAMAGES"), the Final Award will set forth and award to Acquirer the amount of
such damages, reduced by any recovery under policies of insurance to date that
were not specified in the Notice of Claim.  In addition, the Final Award will
set forth an additional amount of Target Damages equal to the reasonably
foreseeable amount of alleged Target Damages that the arbitrator determines
(based on the evidence submitted by the parties in the arbitration) are
reasonably likely to be incurred by Acquirer and any other Indemnified Person as
a result of the facts giving rise to the Contested Claim ("ESTIMATED DAMAGES"),
which amount of Estimated Damages may, without limitation, include the amount of
damages claimed by a third party in an action brought against any Indemnified
Person based on alleged facts which, if true, would give rise to Target Damages.
The Escrow Agent will continue to hold Escrow Shares representing the Estimated
Damages, in accordance with Section 4.5, in escrow, including, if appropriate,
beyond the expiration of the Escrow Period, until and to the extent that: (A)
the arbitrator deems that Acquirer has actually incurred such Estimated Damages,
reduced by any recovery under policies of insurance to date that were not
specified in the Notice of Claim; (B) the arbitrator deems that Acquirer will
not actually incur any additional Estimated Damages; or (C) the parties come to
a written settlement agreement pursuant to Section 4.4.  Both Incurred Damages
and Estimated Damages owed to Indemnified Persons are deemed to be Target
Damages for purposes of this Agreement.
 
           (iii)  Upon issuance and delivery of the Final Award pursuant to
Section 4.3(c)(ii), and subject to receipt by the Escrow Agent of a written
notice of resolution of the Claim pursuant to Section 4.3(h), Acquirer will
immediately be entitled to recover: (A) the amount of any Incurred Damages
awarded to Acquirer under such Final Award, and (B) the amount of Estimated
Damages awarded under such Final Award to the extent that such Estimated Damages
do not arise from a Third Party Claim.  If the Final Award awards any Estimated
Damages to Acquirer that arise from a Third Party Claim then: (A) if the actual
amount of such Estimated Damages is determined by a settlement agreement or a
final judgment or arbitration award prior to the Resolution Date (defined
herein) for the Contested Claim with respect to which such Estimated Damages
were awarded under the Final Award, then for purposes of this Agreement, the
amount of such Estimated Damages owed to Acquirer will be the amount so
determined by such settlement agreement, judgment or award without regard to the
amount of Estimated Damages set forth in the Final Award, and (B) if the actual
amount of such Estimated Damages is not so determined prior to the Resolution
Date, then for purposes of this Agreement, the amount of such Estimated Damages
owed to Acquirer will be the amount of Target Damages awarded in the Final
Award.  For the purposes of this Agreement, the term "RESOLUTION DATE" for a
Contested Claim shall mean the later of: (A) the Release Date, or (B) 

                                       9
<PAGE>

the date on which the last timely filed Notice of Claim is resolved through
Final Award, as a settled claim or otherwise.
 
          (d)  Timing.  The Representative, Acquirer and the arbitrator shall
               ------                                                        
conclude each arbitration pursuant to this Section 4.3 as promptly as
practicable.  Time is of the essence with regards to all aspects of this
Agreement.
 
          (e)  Terms of Arbitration.  The arbitrator chosen in accordance with
               --------------------                                           
these provisions shall not have the power to alter, amend or otherwise affect
the terms of these arbitration provisions, the other provisions of this
Agreement or the Plan.
 
          (f)  Non-Exclusivity.  Although the use of arbitration in resolving
               ---------------                                               
Contested Claims under this Agreement is mandatory, this does not limit any
other rights or remedies which Acquirer may have, whether at law, in equity, by
contract or otherwise, all of which shall be cumulative (and not alternative).
Nothing in this Agreement shall limit any of the rights or remedies of Acquirer
under the Plan or any other Merger Agreement, and nothing in the Plan or any
other Merger Agreement shall limit any of the rights or remedies of Acquirer
under this Agreement.
 
          (g)  Multiplicity of Claims Permitted.  The assertion of any single
               --------------------------------                              
Claim for indemnification hereunder shall not bar Acquirer or an Indemnified
Person from asserting any other Claims hereunder.
 
          (h)  Notice of Resolution of Claim. The Escrow Agent shall not deliver
               ----------------------------- 
Escrow Shares held pursuant to a Contested Claim until the Escrow Agent receives
appropriate notice. Such notice must consist of: (i) written notice of the
resolution of such Claim executed by both the Representative and Acquirer; (ii)
a written settlement agreement pursuant to Section 4.4; (iii) delivery to the
Escrow Agent of an appropriate final non-appealable order by a court of
competent jurisdiction; or (iv) delivery to the Escrow Agent of a copy of the
Final Award of an arbitrator or court. The Escrow Agent shall act on such notice
without further inquiry in accordance with Sections 2.3(b) and (c).
 
     4.4  Settled Claims.  If a Claim (including a Contested Claim) is
          --------------                                              
settled by a written settlement agreement executed by the Representative and
Acquirer, then the Representative and Acquirer shall promptly deliver such
written settlement agreement to the Escrow Agent with written instructions on
the appropriate charges or adjustments to be made to the Escrow Ledger, and the
Escrow Agent shall promptly release and/or return the Escrow Shares subject to
such claim in accordance with Sections 2.3(b) and 2.3(c).
 
     4.5   Determination of Number of Escrow Shares for Claims.  Unless a
           ---------------------------------------------------         
specific number of Escrow Shares is specified, any amount owed to Acquirer under
this Agreement will be immediately payable to Acquirer, subject to Section
4.3(h), by deducting pro rata each Stockholder's account in the Escrow Ledger
the number of Escrow Shares equal to: (a) the Target Damages for that Claim,
divided by, (b) the Closing Price (as defined in the Plan as of the Closing

                                       10
<PAGE>
 
Date). Within ten (10) business days after the Closing Date, Acquirer will
notify the Escrow Agent of the Closing Price.
 
          4.6  No Election of Remedies.  Acquirer may institute Claims against
               -----------------------                                        
the Escrow Shares and in satisfaction thereof may elect to have such Escrow
Shares deducted from the Escrow Ledger, after any notice to the Representative
required hereunder, without making any other claims directly against the
Stockholders and without rescinding or attempting to rescind the transactions
consummated pursuant to the Plan.  The assertion of any single Claim for
indemnification hereunder will not bar Acquirer from asserting other Claims
hereunder.  Acquirer need not exhaust any other remedies that may be available
to it but may proceed directly in accordance with the provisions of this
Agreement.
 
 
     5.   THE ESCROW AGENT
 
          5.1  Limitation of Escrow Agent's Liability/Responsibility. The Escrow
               ----------------------------------------------------- 
Agent shall incur no liability with respect to any action taken or suffered by
it in reliance upon any notice, direction, instruction, consent, statement or
other document believed by it to be genuine and duly authorized, nor for any
other action or inaction, except its own willful misconduct, fraud or gross
negligence. The Escrow Agent shall have no duty or responsibility: (a) for the
validity or sufficiency of this Agreement, nor to inquire into or investigate
the validity, accuracy or content of any document that it receives, (b) to
verify that the Representative or Acquirer received a Notice of Claim or other
required notice, and (c) other than those expressly set forth in this Agreement
and the implied duty of good faith and fair dealing. The Escrow Agent will not
be required to take any action hereunder involving any expense unless the
payment of such expense is made or provided for in a manner satisfactory to it.
Nothing in this Agreement shall be deemed to impose upon the Escrow Agent any
duty to qualify to do business or to act as a fiduciary or otherwise in any
jurisdiction other than the State of California.

          5.2  Use of Agents and Reliance on Counsel.  The Escrow Agent may
               -------------------------------------                       
execute any of its powers or responsibilities hereunder and exercise any rights
hereunder either directly or through its agents or attorneys and shall be
entitled to consult with its legal counsel, including in-house legal counsel, as
to any questions or matters arising hereunder.  The reasonable, good faith
written opinion of such legal counsel shall be full and complete authorization
and protection to the Escrow Agent in respect of any act or omission by the
Escrow Agent undertaken in good faith and in accordance with the opinion of such
legal counsel.  The Escrow Agent shall have no liability for the conduct of any
outside attorneys, accountants or other similar professionals it retains.
 
          5.3  Indemnification of the Escrow Agent.
               ----------------------------------- 
 
               (a)  For the purposes of this Section 5.3, references to the
Escrow Agent shall include the Escrow Agent's officers, directors, employees,
counsel and agents.
 

                                       11
<PAGE>
 
               (b)  Each party to this Agreement other than the Escrow Agent
(each an "INDEMNIFYING PARTY" and together the "INDEMNIFYING PARTIES") will
severally reimburse, indemnify and hold harmless the Escrow Agent from and
against any damage, liability or loss suffered, incurred by, or asserted against
the Escrow Agent (including amounts paid in settlement of any action, suit,
proceeding, or claim brought or threatened to be brought and including
reasonable expenses of legal counsel, collectively, "LOSS") arising out of, in
connection with or based upon any act or omission by the Escrow Agent relating
in any way to this Agreement or the Escrow Agent's services hereunder. This
indemnity will exclude any indemnification for any Loss arising in whole or in
part, directly or indirectly, from any gross negligence or willful misconduct on
the Escrow Agent's part. Anything in this Agreement to the contrary
notwithstanding, in no event will the Escrow Agent be liable for special,
indirect or consequential loss or damage of any kind whatsoever (including but
not limited to lost profits) suffered by another party to this Agreement or by
any Stockholder, even if the Escrow Agent has been advised of the likelihood of
such loss or damage and regardless of the form of action.

               (c)  Each Indemnifying Party may participate at its own expense
in the defense of any claim or action that may be asserted against the Escrow
Agent related to this Agreement, and if the Indemnifying Parties so elect, the
Indemnifying Parties may assume the defense of such claim or action; provided,
however, that, if there exists a conflict of interest that would make it
inappropriate, in the sole discretion of the Escrow Agent, for the same counsel
to represent both Escrow Agent and the Indemnifying Parties, the Escrow Agent's
retention of separate counsel will be reimbursable as herein above provided.
The Escrow Agent's right to indemnification hereunder will survive the Escrow
Agent's resignation or removal as the Escrow Agent and will survive the
termination of this Agreement by lapse of time or otherwise.

               (d)  The Escrow Agent will notify each Indemnifying Party by
letter, or by telephone or telecopy confirmed by letter, of any receipt by
Escrow Agent of a written assertion of a claim against the Escrow Agent arising
out of this Agreement, or any action commenced against the Escrow Agent arising
out of this Agreement, within five (5) business days after the Escrow Agent's
receipt of written notice of such claim. However, the Escrow Agent's failure to
so notify each Indemnifying Party will not operate in any manner whatsoever to
relieve an Indemnifying Party from any liability that it may have to the Escrow
Agent under this Section 5.3 or otherwise unless such failure by the Escrow
Agent to give such notice materially prejudices such Indemnifying Party.

          5.4  Compensation and Expenses of Escrow Agent.  All fees and expenses
               -----------------------------------------                        
of the Escrow Agent incurred in the ordinary course of performing its
responsibilities hereunder shall be paid by Acquirer upon receipt of a written
invoice by Escrow Agent.
 
          5.5  Resolution of Conflicting Demands.  In the event conflicting
               ---------------------------------                           
demands are made or conflicting notices are served upon the Escrow Agent with
respect to the Escrow Shares or the Escrow Ledger, the Escrow Agent shall have
the right, at the Escrow Agent's election, to either: (a) give written notice to
the other parties to this Agreement that it has received conflicting
instructions from Acquirer and the Representative and is refraining from taking
action until it receives instructions consented to in writing by both Acquirer
and the Representative, or 

                                       12
<PAGE>
 
(b) resign so that a successor escrow agent can be appointed pursuant to Section
5.6. In the further event that the Escrow Agent gives written notice under "(a)"
above and does not receive instructions consented to in writing by both Acquirer
and the Representative within thirty (30) calendar days, then the Escrow Agent
may file a suit in interpleader and obtain an order from a court of competent
jurisdiction located in San Mateo County, California, requiring the parties to
interplead and litigate in such court their several claims and rights among
themselves. In this case, the Escrow Agent shall thereby be fully released and
discharged from all further obligations imposed upon it under this Agreement
with respect to the matters that are the subject of such interpleader suit, and
Acquirer shall pay the Escrow Agent all costs, expenses and reasonable
attorneys' fees expended or incurred by the Escrow Agent pursuant to the
exercise of Escrow Agent's rights under this paragraph.
 
          5.6  Successor Escrow Agent.
               ---------------------- 
 
               (a)  In the event the Escrow Agent becomes unavailable or
unwilling to continue in its capacity as Escrow Agent hereunder, the Escrow
Agent may resign and be discharged from its duties hereunder by giving notice of
resignation to the parties to this Agreement, specifying a date not less than
ten (10) days following such notice date of when such resignation shall take
effect and refunding to Acquirer any prepaid but unearned fees previously paid
by Acquirer to the Escrow Agent hereunder. Acquirer shall designate a successor
Escrow Agent reasonably satisfactory to the Representative prior to the
expiration of such ten day period by giving written notice to the Escrow Agent
and the Representative. If no successor escrow agent is named by Acquirer, then
the Escrow Agent may apply to a court of competent jurisdiction for the
appointment of a successor Escrow Agent. In either case, the Escrow Agent shall
promptly transfer the Escrow Shares and Escrow Ledger to the designated
successor Escrow Agent.
 
               (b)  In the event Escrow Agent is merged with, acquired or
otherwise combined with another entity, or Escrow Agent transfers all or
substantially all of its corporate trust business (including the escrow
contemplated by this Agreement) to another institution, the successor as a
result of such transaction will be the Escrow Agent hereunder without any
further action by the parties hereto.
 
 
     6.   THE STOCKHOLDERS' REPRESENTATIVE
 
          6.1  Powers of the Representative.    In order to receive their
               ----------------------------                              
consideration pursuant to the Plan, each Stockholder has consented to: (a) the
appointment of the Representative (and any replacement hereunder) as
representative of the Stockholders and as the agent and attorney-in-fact for and
on behalf of each Stockholder, and (b) so long as all Stockholders are treated
in material respects in the same manner, the taking by the Representative of any
and all actions and the making of any decisions required or permitted to be
taken by the Representative under this Agreement, including, without limitation,
the exercise of the power to: (i) authorize deduction of Escrow Shares from the
account of each Stockholder, as reflected in the Escrow Ledger, in satisfaction
of Claims; (ii) agree to, negotiate, enter into 

                                       13
<PAGE>
 
settlements and compromises of, and demand arbitration and comply with orders of
courts and awards of arbitrators, with respect to Claims; (iii) take all actions
necessary in connection with the waiver of any condition to the obligations of
the Stockholders under this Agreement; (iv) waive any right of any or all of the
Stockholders; (v) give and receive all notices required to be given under this
Agreement; (vi) resolve any Claims; and (vii) take all actions necessary in the
sole judgment of the Representative for the accomplishment of the foregoing and
all of the other terms, conditions and limitations of this Agreement. The
Stockholders shall be bound by all actions taken and decisions made by the
Representative in connection with this Agreement. Acquirer and the Escrow Agent
shall be entitled to rely on any action or decision of the Representative.

          6.2  Limitation of the Representative's Liability.  In performing the
               --------------------------------------------                    
functions specified in this Agreement, the Representative shall not be liable to
the Stockholders in the absence of fraud, gross negligence or willful misconduct
(including willful breach of this Agreement) on the part of the Representative.
 
          6.3  Indemnification.  Each of the Stockholders agree to indemnify and
               ---------------                                                  
hold the Representative harmless from and against any and all loss, liability,
damages, cost or expense (including but not limited to reasonable attorneys' and
experts' fees and court costs) incurred by the Representative in connection with
the performance of the Representative's duties and obligations under this
Agreement (other than any loss, liability, damages, cost or expense incurred
through acts or omissions constituting fraud, gross negligence or willful
misconduct on the Representative 's part).
 
          6.4  No Compensation; Reimbursement for Expenses.  Except as stated in
               -------------------------------------------                      
Section 6.3 and in this paragraph, the Representative shall not be entitled to
receive any compensation for his or her services in connection with this
Agreement.  Any out-of-pocket costs and expenses reasonably incurred by the
Representative in connection with actions taken pursuant to the terms of this
Agreement shall be paid by the Stockholders in proportion to their percentage
share set forth in column 4 of the Escrow Ledger promptly upon the
Representative's written request to the Stockholders and, at the
Representative's option, may be taken by the Representative from the Escrow
Shares reflected in the Escrow Ledger after the final resolution of all Claims
made under this Agreement.
 
          6.5  Successor Representative.  In the event that Representative dies,
               ------------------------                                         
becomes unable to perform the responsibilities hereunder or resigns as
representative of the Stockholders hereunder, a substitute representative of the
Stockholders shall be appointed by the Stockholders with beneficial interests in
a majority of the total Escrow Shares, as reflected in column 4 of the Escrow
Ledger, to act as representative of the Stockholders hereunder.
 
 
     7.   GENERAL PROVISIONS
 
          7.1  Entire Agreement.  Except as otherwise provided in the Plan, this
               ----------------                                                 
Agreement constitutes the entire understanding and agreement of the parties with
respect to the 

                                       14
<PAGE>
 
subject matter of this Agreement and supersedes all prior agreements or
understandings, written or oral, between the parties with respect to the subject
matter hereof. As between the Escrow Agent and the other parties hereto, all
such parties agree that the Escrow Agent's duties are defined only in this
Agreement, any contrary provisions of the Plan notwithstanding.

          7.2  Assignment; Binding Nature.  Acquirer may not assign all or any
               --------------------------                                     
of its rights and obligations hereunder without the prior written consent of the
Escrow Agent and the Representative, which consent shall not be unreasonably
withheld.  Except for assignments in connection with permitted transfers of
Escrow Shares under Section 2.1(d) of this Agreement, Target may not assign any
of its rights or obligations hereunder, nor may rights or obligations be
assigned by operation of law, without the prior written consent of Acquirer.
This Agreement and shall be binding upon, and inure to the benefit of, the
parties hereto and their respective successors and permitted assigns.

          7.3  Construction of Agreement.  This Agreement has been negotiated by
               -------------------------                                        
the respective parties hereto and their attorneys and have been reviewed by each
party hereto.  Accordingly, no ambiguity in the language of this Agreement will
be construed for or against either party.
 
          7.4  Section Headings.  A reference to a section, article or exhibit
               ----------------                                               
will mean a section in, article in or exhibit to this Agreement unless otherwise
explicitly set forth.  The titles and headings herein are for reference purposes
only and will not in any manner limit the construction of this Agreement, which
will be considered as a whole.
 
          7.5  Amendment.  This Agreement may be amended by the written
               ---------                                               
agreement of Acquirer, the Escrow Agent and the Representative; provided,
however, that, if the Escrow Agent does not agree to an amendment agreed upon by
Acquirer and the Representative, then the Escrow Agent shall resign and Acquirer
shall appoint a successor Escrow Agent in accordance with the provisions of
Section 5.6.  No amendment of the Plan shall increase or alter the Escrow
Agent's duties, responsibilities or liability hereunder without the Escrow
Agent's written agreement.
 
          7.6  Waiver.  No waiver by any party hereto of any condition or of any
               ------                                                           
breach of any provision of this Agreement shall be effective unless it is set
forth in a writing signed by such party.  No waiver by any party of any such
condition or breach, in any one instance, shall be deemed to be a further or
continuing waiver of any such condition or breach or a waiver of any other
condition or breach of any other provision contained herein.  The failure of any
party to enforce any of the provisions hereof will not be construed to be a
waiver of the right of such party thereafter to enforce such provisions.
 
          7.7  Severability.  If any provision of this Agreement or its
               ------------                                            
application will for any reason and to any extent be invalid or unenforceable,
the remainder of this Agreement and application of such provision to other
persons or circumstances will be interpreted so as to effect the intent of the
parties hereto.  The parties will replace such void or unenforceable provision
of 

                                       15
<PAGE>
 
this Agreement with a valid and enforceable provision that will achieve, to the
extent possible, the economic, business and other purposes of the void or
unenforceable provision.
 
          7.8  Governing Law.  The validity of this Agreement the construction
               -------------                                                  
of its terms, and the interpretation and enforcement of the rights and duties of
the parties of this Agreement will be exclusively governed by and construed in
accordance with the internal laws of the State of Delaware, as applied to
agreements entered into solely between residents of and to be performed entirely
in the State of Delaware, without reference to that body of law relating to
conflicts of law or choice of law.
 
          7.9  Other Remedies.  Except as otherwise provided herein, any and all
               --------------                                                   
remedies herein expressly conferred upon a party will be deemed cumulative with
and not exclusive of any other remedy conferred hereby or by law on such party,
and the exercise of any one remedy will not preclude the exercise of any other.
 
          7.10 Jurisdiction.  The parties submit to the jurisdiction of the
               ------------                                                
Superior Court of the State of California and the United Stated District Court
for the Northern District of California for the purposes of: (a) confirming any
award made under this Agreement and entering into judgment thereon, and (b)
litigation and trial of any controversy or claim arising out of or relating to
this Agreement.  The parties consent to the personal jurisdiction of and the
venue in the state and federal courts within San Mateo County and waive any
rights to request dismissal on the grounds of forum non conveniens or similar
doctrines.

          7.11 Specific Performance.  The parties acknowledge that irreparable
               --------------------                                           
damage would occur in the event that the provisions of this Agreement were not
performed in accordance with their specific terms or were otherwise breached.
The parties will be entitled to an injunction(s) to prevent breaches of the
provisions of this Agreement and to enforce specifically the terms and
provisions hereof (including the indemnification provisions hereof) in any court
of the United States or any state having jurisdiction.  This is in addition to
any other remedy to which the parties might be entitled at law or in equity.
 
          7.12 Notices.  All notices, instructions and other communications
               -------                                                     
required or permitted to be given under this Agreement or necessary or
convenient in connection herewith must be in writing and shall be deemed given:
(a) when personally served or when delivered by telex or facsimile; (b) one
business day after deposit with an overnight courier service as shown by the
records of such delivery service; (c) on the business day of transmission if
such notice is sent by facsimile and the sender receives electronic confirmation
of receipt by the recipient; or (d) on the earlier of actual receipt or the
third business day following the date on which the notice is deposited in the
United States mail, first class certified or registered mail, postage prepaid,
addressed as follows:

If to Acquirer:             At Home Corporation
                            Attention: Mr. David Pine, Esq.

                                       16
<PAGE>
 
                            425 Broadway Street
                            Redwood City, CA  94063
                            Fax Number: (650) 482-4606

with a copy to:             Fenwick & West LLP
                            Attention: Gordon Davidson, Esq.
                            Two Palo Alto Square
                            Palo Alto, California 94306
                            Fax Number:  (650) 494-1417

If to the Exchange Agent:   At Home Corporation
                            Attention: Sharon Kelley
                            425 Broadway Street
                            Redwood City, CA  94063
                            Fax Number: (650) 569-5045

If to the Transfer Agent:   Boston EquiServe
                            Attention: Tyler Clements
                            289 S. San Antonio Road, Suite 100
                            Los Altos, CA  94022
                            Fax Number: (650) 917-5908

If to the Escrow Agent:     State Street Bank and Trust Company of California, 
                            N.A.
                            Library Tower
                            633 West 5/th/ Street, 12/th/ Floor
                            Los Angeles, CA  90071
                            Attn: Corporate Trust Department
                            (1998 At Home/Narrative Escrow)
                            Fax Number: (213) 362-7357

If to the Representative:   Greylock Management Corp.
                            Attention: Charles M. Hazard, Jr.
                            One Federal Street
                            Boston, MA 02110
                            Phone: (617) 423-5525
                            Fax Number: (617) 482-0059

or to such other address as a party designates in a writing delivered to each of
the other parties hereto in accordance with this Section 7.12.  Notwithstanding
the foregoing, notices, instructions and other communications addressed to the
Escrow Agent shall be deemed to have been given to the Escrow Agent only upon
receipt by the Escrow Agent.  The Escrow Agent may assume without inquiry
(unless the Escrow Agent has written notice to the contrary) that notices
received by it which are also required to be delivered to another party have, in
fact, been delivered to such other party.

                                       17
<PAGE>
 
          7.13 Counterparts.  This Agreement may be executed in any number of
               ------------                                                  
counterparts, each of which shall be deemed an original as regards any party
whose signature appears thereon, but all of which together shall constitute one
and the same instrument.  This Agreement will become binding when two or more
counterparts hereof, individually or taken together, bear the signatures of each
of the parties reflected hereon as signatories.


          IN WITNESS WHEREOF, the parties have duly executed this Agreement as
of the day and year first above written.


ACQUIRER                                      REPRESENTATIVE
 
By:    /s/ David Pine                         By:     /s/ Charles M. Hazard, Jr.
       ---------------------                          --------------------------
Name:  David Pine                             Name:   Charles M. Hazard, Jr.
 
Title: Vice President and General Counsel     Title:  Representative of
                                                      Target Stockholders


ESCROW AGENT

STATE STREET BANK AND TRUST
COMPANY OF CALIFORNIA, N.A.

By:    /s/ Mark Henson
       --------------------

Name:  Mark Henson

Title: Authorized Signatory


                     [SIGNATURE PAGE TO ESCROW AGREEMENT]

                                       18

<PAGE>

                                                                     EXHIBIT 2.4
 
                               RIGHTS AGREEMENT


     This RIGHTS AGREEMENT (this "AGREEMENT") is made and entered into as
of December 30, 1998 by and between At Home Corporation, a Delaware corporation
("ACQUIRER"), and each of the other undersigned persons and entities
(collectively, the "STOCKHOLDERS" and each individually, a "STOCKHOLDER").


     WHEREAS, Acquirer, Narrative Communications Corp., a Delaware corporation
("TARGET") and Transitory Corporation, a Delaware corporation and wholly owned
subsidiary of Acquirer ("MERGER SUB"), have entered into an Agreement and Plan
of Merger (the "PLAN") dated as of December 17, 1998, pursuant to which Merger
Sub will merge with and into Target in a reverse triangular merger (the
"MERGER"), with Target to be the surviving corporation of the Merger;

     WHEREAS, Section 2.5 of the Plan provides that Acquirer and the
Stockholders will, subject to the terms and conditions of this Agreement, enter
into this Agreement in order to grant the Stockholders certain Form S-3 shelf
registration rights to provide for resale of the Exchange Shares and to subject
the disposition of the Exchange Shares to certain restrictions;

     WHEREAS, the Stockholders are entering into this Agreement as a material
inducement and consideration for Acquirer to enter into the Plan and to
consummate the transactions contemplated therein and as a material inducement
and condition precedent to consummation of the Merger.

     NOW, THEREFORE, in consideration of the facts stated in the foregoing
recitals and the mutual promises hereinafter set forth, the parties hereto agree
as follows:


     1.  FORM S-3 SHELF REGISTRATION RIGHTS

         1.1  Primary Obligations of Acquirer.
              ------------------------------- 

              (a)  Certain Definitions.
                   ------------------- 

                   (i)    "1933 ACT" shall mean the Securities Act of 1933, as
amended, or any successor law.

                   (ii)   "1934 ACT" shall mean the Securities Exchange Act of
1934, as amended, or any successor law.
<PAGE>
 
                   (iii)  "BEST EFFORTS", "DAMAGES", "EFFECTIVE TIME", "EXCHANGE
SHARES" and all other capitalized terms used in this Agreement that are not
defined in this Agreement shall have the meanings given to such terms in the
Plan.

                   (iv)   "FORM S-3" shall refer to a registration statement
filed under Form S-3 under the 1933 Act or any successor form of registration
statement under the 1933 Act subsequently adopted by the SEC which permits
incorporation of a substantial amount of information by reference to other
documents filed by Acquirer with the SEC.

                   (v)    "REGISTRABLE SECURITIES" shall mean: (A) the Exchange
Shares that are issued to the Stockholders in the Merger pursuant to Section 2.2
of the Plan upon the surrender of their Target Certificates representing Target
capital stock outstanding at the Effective Time of the Merger, and (B) any
shares of Acquirer Series A Common Stock that may be issued as a dividend or
other distribution (including without limitation shares of Acquirer Series A
Common Stock issued in a split of Acquirer's outstanding Series A Common Stock)
with respect to, or in exchange for, or in replacement of, shares of Acquirer
Series A Common Stock described in clause "(A)" of this paragraph; provided,
however, that "Registrable Securities" shall not include any such shares that:
(1) are registered under the 1933 Act other than pursuant to a registration
statement filed pursuant to this Agreement; (2) are sold by a person in a
transaction in which rights under this Agreement with respect to such shares are
not assigned in accordance with the terms of this Agreement; (3) were previously
sold pursuant to a registration statement filed pursuant to this Agreement; and
(4) are sold pursuant to Rule 144 or otherwise sold to the public. Additionally,
"Registrable Securities" will also not include Exchange Shares issued to each
Key Employee (as identified in Schedule 1.1), except for those Exchange Shares
that are eligible for resale under clause "(i)" of Section 2.1(b).

                   (vi)   "RIGHTS HOLDERS" shall mean a Stockholder who is the
original holder of any Registrable Securities or any assignee of record of any
Registrable Securities to whom rights under this Agreement have been duly
assigned in accordance with the provisions of this Agreement;

                   (vii)  "RULE 144" shall mean Rule 144 promulgated under the
1933 Act, as such Rule may be amended from time to time, or any similar or
successor rule or regulation hereafter adopted by the SEC;

                   (viii) "RULE 415" shall mean Rule 415 promulgated under the
1933 Act, as such Rule may be amended from time to time, or any similar or
successor rule or regulation hereafter adopted by the SEC;

                   (ix)   "SEC" shall mean the United States Securities and
Exchange Commission; and
 
                   (x)    "SHELF REGISTRATION" shall refer to the shelf
registration statement on Form S-3 described in Section 1.1(b) and any
subsequent registration statement(s) filed pursuant to Section 1.1(d).

                                      -2-
<PAGE>
 
                   (xi)   "TRADING WINDOW" shall refer to those quarterly time
periods specified by Acquirer's insider trading policy, a copy of which has been
provided to Target prior to the date hereof, during which directors, officers,
employees and others whom Acquirer has deemed to be subject to the restrictions
of its insider trading policy may trade Acquirer securities. Each Trading Window
typically begins on the third trading day after Acquirer publicly reports its
operating results for the previous calendar quarter, and ends on the last day of
the second month of each respective calendar quarter (February, May, August and
November).

              (b)  Filing. As promptly as reasonably practicable after the
                   ------
Effective Time of the Merger, and subject to Section 1.3 and the other
provisions of this Agreement, Acquirer shall prepare and file with the SEC a
shelf registration statement on Form S-3 for an offering to be made on a
continuous basis pursuant to Rule 415 covering all of the then outstanding
Registrable Securities. Acquirer shall use its Best Efforts to have such Shelf
Registration declared effective on or before the first day of the first Trading
Window of 1999, which is expected to occur during the last week of January.

              (c)  Registration Period. Subject to the limitations in Section
                   -------------------
1.3 and elsewhere in this Agreement, Acquirer shall use its Best Efforts to keep
the Shelf Registration continuously effective under the 1933 Act for a period of
time commencing on the date the Shelf Registration is declared effective under
the 1933 Act and ending on the first anniversary of the Effective Time of the
Merger; provided, however, that for each day that the Shelf Registration is not
effective during such period, such period shall be extended for one day (the
"REGISTRATION PERIOD"). Acquirer shall have no duty to keep the Shelf
Registration effective after the expiration of the Registration Period.

              (d)  Subsequent Registration.  If a Shelf Registration becomes
                   -----------------------                                  
effective under the 1933 Act, but subsequently ceases to be effective for any
reason at any time during the Registration Period, then Acquirer shall use its
Best Efforts to obtain the prompt withdrawal of any order suspending the
effectiveness thereof, and in any event shall, within thirty (30) days, file an
amendment to the Shelf Registration seeking withdrawal of the order suspending
the effectiveness thereof or file an additional shelf registration statement
pursuant to Rule 415 covering all of the then outstanding Registrable
Securities.

              (e)  Supplements and Amendments. Subject to the limitations in
                   --------------------------
Section 1.3 and elsewhere in this Agreement, during the Registration Period
Acquirer shall supplement and amend the Shelf Registration as required by the
1933 Act, the rules and regulations promulgated thereunder or the rules,
regulations or instructions applicable to the registration form used by Acquirer
for the Shelf Registration.

              (f)  Additional Securities Law Obligations. When Acquirer effects
                   -------------------------------------    
the registration of any Registrable Securities under the terms of this
Agreement, Acquirer will also, as promptly as reasonably possible:

                                      -3-
<PAGE>
 
                   (i)    furnish to the Rights Holders a number of copies of
the prospectus for the Shelf Registration in conformity with the requirements of
the 1933 Act in order to facilitate the disposition of the Registrable
Securities owned by them;

                   (ii)   use its Best Efforts to register and qualify the
securities covered by the Shelf Registration under the other securities or blue
sky laws of the jurisdictions that are reasonably requested by the Rights
Holders; provided, however, that Acquirer will not be required in connection
therewith or as a condition thereto to qualify to do business or to file a
general consent to service of process in any state or jurisdiction unless
Acquirer is already so qualified or subject to service of process in that
jurisdiction; and

                   (iii)  promptly notify each Rights Holder of Registrable
Securities covered by the Shelf Registration, at any time during a Trading
Window when a prospectus relating thereto is required to be delivered under the
1933 Act, of the happening of any event known to Acquirer's executive officers
as a result of which the prospectus included in the Shelf Registration, as then
in effect, is known by Acquirer's executive officers to include an untrue
statement of a material fact or omits to state a material fact required to be
stated therein or necessary to make the statements therein not misleading in the
light of the circumstances then existing, and, subject to the provisions of this
Agreement, at the request of any Rights Holder, prepare and furnish to each
Rights Holder of Registrable Securities then outstanding a reasonable number of
copies of a supplement to or an amendment of the prospectus as may be necessary
to correct the untrue statement or omission; provided, however, that each Rights
Holder agrees not to trade from the time that it receives such notice until such
Rights Holder receives a supplement to or an amendment to the prospectus, such
period not to exceed five trading days in any one instance; and

                   (iv)   upon the request of any Rights Holder, promptly
provide the name, address and other contact information regarding Acquirer's
transfer agent for the Registrable Securities and the CUSIP number for the
Registrable Securities.

              (g)  Expenses. Acquirer shall pay all expenses incurred in
                   --------
connection with the Shelf Registration (excluding brokers' discounts and
commissions), including without limitation all filing, registration and
qualification, printers', legal and accounting fees.

         1.2  Additional Terms and Conditions.
              ------------------------------- 
 
              (a) Manner of Sales. Any sale of Registrable Securities pursuant
                  ---------------
to a Shelf Registration may only be made in accordance with the method(s) of
distribution of such Registrable Securities that are described in the "Plan of
Distribution" or similar section contained in the prospectus for the Shelf
Registration, which methods shall be customary for transactions of this type.

              (b) Timing of Sales. The Rights Holders agree to sell or otherwise
                  ---------------
transfer Registrable Securities pursuant to a Shelf Registration only during a
Trading Window.

                                      -4-
<PAGE>
 
              (c) Stockholder's Questionnaire.  As a condition precedent to the
                  ---------------------------                                  
obligations of Acquirer to take any action pursuant to this Agreement as to a
Rights Holder, such selling Rights Holder will first deliver to Acquirer the
Stockholder's Questionnaire attached as Exhibit B, which shall include, among
other things, such information regarding such Rights Holder, the Registrable
Securities held by such Rights Holder, and the intended method of disposition
and plan of distribution of such Registrable Securities as shall be required to
timely effect the registration of such Rights Holder's Registrable Securities.
 
              (d) Delay of Registration. No Rights Holder will have any right to
                  ---------------------   
obtain or seek an injunction restraining or otherwise delaying any registration
that is the subject of this Agreement as the result of any controversy that
might arise with respect to the interpretation or implementation of this
Agreement.
 
              (e) Acknowledgment of Other Registration Rights. The Rights
                  -------------------------------------------
Holders been informed by Acquirer that other stockholders of Acquirer currently
hold certain Form S-3 and other registration rights that may enable such other
stockholders to sell shares of Acquirer during one or more Trading Windows or at
other times (thus potentially adversely affecting the receptivity of the market
to the sale of the Registrable Securities pursuant to a registration effected
pursuant to this Agreement). If after the date of this Agreement and prior to
expiration of the Registration Period, Acquirer enters into an agreement
pursuant to which Acquirer grants registration rights to a third party or
parties that may be exercised during the Registration Period, then, within
thirty (30) days after it enters into such agreement, Acquirer will notify the
Rights Holders of the grant of such registration rights and their general terms.

              (f) Private Offering.  Notwithstanding the terms and conditions of
                  ----------------                                              
this Article 1, a Rights Holder may otherwise sell Registrable Securities in a
bona fide private offering if the selling Rights Holder provides Acquirer with a
written opinion of counsel, reasonably satisfactory to counsel to Acquirer, that
the proposed offer and sale is an exempt transaction under the 1933 Act and
applicable state securities laws, complies with all requirements for such
exemption(s) and is not made with use of the prospectus for the Shelf
Registration.
 
              (g) Compliance with Securities Laws. Each Stockholder will be
                  ------------------------------- 
solely responsible for compliance with all federal and state securities law
restrictions (including without limitation the volume and manner of sale
restrictions imposed by Rule 144 of the Securities Act), if any, after the
expiration of the Registration Period with regards to any sale, transfer or
other disposition of Acquirer Series A Common Stock by such Stockholder after
the expiration of the Registration Period or during any period other than during
a Trading Window.

         1.3  Limitations on Acquirer's Obligations.
              ------------------------------------- 
 
              (a) Basic Limitations. Notwithstanding Section 1.1, Acquirer will
                  -----------------
not be obligated to effect any registration, qualification or compliance of
Registrable Securities pursuant to Section 1.1, and the Rights Holders shall not
be entitled to sell Registrable Securities pursuant to a Shelf Registration
filed under Section 1.1: (i) if Form S-3 is not then available for

                                      -5-
<PAGE>
 
such offering by the Rights Holders; (ii) if Acquirer is acquired and its Series
A Common Stock ceases to be publicly traded; (iii) in any particular
jurisdiction in which Acquirer would be required to qualify to do business or to
execute a general consent to service of process in effecting such registration,
qualification or compliance, unless Acquirer is already subject to service of
process in that jurisdiction; (iv) if the SEC refuses to declare the Shelf
Registration effective due to the participation of any particular Rights Holder
in the Shelf Registration (unless the Rights Holder withdraws all of his or her
Registrable Securities from Shelf Registration); or (v) if the manner in which
any Registrable Securities are disposed of pursuant to the Shelf Registration is
not included within the "Plan of Distribution" set forth in the prospectus for
the Shelf Registration.

              (b) Trading Windows. Notwithstanding Section 1.1, Acquirer shall
                  ---------------  
not be obligated to keep the registration statement for the Shelf Registration
current during any period other than during a Trading Window.

              (c) Shares Otherwise Eligible for Resale. Notwithstanding Section
                  ------------------------------------
1.1, Acquirer shall not be obligated to effect or continue to keep effective any
such registration, registration statement, qualification or compliance with
respect to the Registrable Securities held by any particular Rights Holder after
expiration of the Registration Period.

              (d) Termination of Acquirer's Obligations.  Except for those
                  -------------------------------------                   
obligations set forth in Section 1.4, Acquirer's obligations pursuant to Article
1 of this Agreement will terminate upon the earlier to occur of:  (i) the
expiration of the Registration Period, or (ii) the date when all Registrable
Securities have been registered and sold pursuant to a registration effected
pursuant to this Agreement and/or have been transferred in transactions in which
registration rights hereunder have not been assigned in accordance with this
Agreement.
 
          1.4  Indemnification.
               --------------- 
 
               (a) By Acquirer.  To the extent permitted by law, Acquirer will
                   -----------                                                
indemnify, defend and hold harmless each Rights Holder against any Damages
(severally but not jointly) to which such Rights Holder may become subject under
the 1933 Act, the 1934 Act or other U.S. federal or state law, insofar as such
Damages arise out of or are based upon any of the following statements,
omissions or violations (collectively, a "VIOLATION"):
 
                   (i)    any untrue statement or alleged untrue statement of a
material fact contained in a Shelf Registration filed by Acquirer pursuant to
this Agreement pursuant to which Registrable Securities are sold, including any
preliminary prospectus, final prospectus or any amendments or supplements
thereto;

                   (ii)   the omission or alleged omission to state in a Shelf
Registration, including a preliminary prospectus, final prospectus or any
amendments or supplements thereto, a material fact required to be stated
therein, or necessary to make the statements therein not misleading; or

                                      -6-
<PAGE>
 
                   (iii)  any violation or alleged violation by Acquirer of the
1933 Act, the 1934 Act, any U.S. federal or state securities law or any rule or
regulation promulgated thereunder in connection with the offering of Registrable
Securities covered a Shelf Registration; provided however, that the indemnity
agreement contained in this Section 1.4(a) shall not apply to amounts paid in
settlement of any Damages if the settlement is effected without the written
consent of Acquirer, which consent shall not be unreasonably withheld, nor shall
Acquirer be liable in any such case for any Damages to the extent that they
arises out of or are based upon a Violation which occurs in reliance upon and in
conformity with written information furnished expressly for use in connection
with the Shelf Registration by such Rights Holder.

              (b)  By Selling Rights Holders. Subject to the terms and
                   ------------------------- 
limitations of Article 11 of the Plan, each selling Rights Holder will indemnify
and hold harmless Acquirer, each of its directors, each of its officers who have
signed the registration statement, each Person, if any, who controls Acquirer
within the meaning of the 1933 Act, any underwriter and any other Rights Holder
selling securities under a Shelf Registration (an "INDEMNIFIED PERSON"): (i)
against any Damages (severally but not jointly) to which an indemnified person
may become subject under the 1933 Act, the 1934 Act or other federal or state
law, insofar as such arise out of or are based upon any Violation, in each case
to the extent that such Violation occurs in reliance upon and in conformity with
written information furnished by such Rights Holder expressly for use in
connection with the Shelf Registration, and (ii) for any reasonable attorneys'
fees and other expenses reasonably incurred by an indemnified person in
connection with investigating or defending any such Damages, as incurred;
provided, however, that the amount payable by a Rights Holder pursuant to this
Section 1.4(b) shall not exceed the amount of proceeds, net of commissions and
selling expenses, received by such Rights Holder pursuant to the sale of
Registrable Securities. Notwithstanding the forgoing, the forgoing indemnity
obligations will not apply to amounts paid in settlement of any such Damages if
the settlement is effected without the consent of the indemnifying Rights
Holder, which consent shall not be unreasonably withheld.

              (c)  Notice Requirement.  If a Person eligible for indemnification
                   ------------------                                           
under this Section 1.4 receives notice that an action (including any
governmental action) has been commenced against him or her, and if such Person
seeks indemnification under this section, then promptly after receipt of this
notice the Person must deliver to the indemnifying party a written notice that
an action has been commenced.  The failure of such Person to deliver written
notice to the indemnifying party within a reasonable time of the commencement of
any such action, if prejudicial to the ability of the indemnifying party to
defend such action, shall relieve such indemnifying party of any liability to
such Person under this Section 1.4, but shall not limit any other liability of
such indemnifying party.
 
              (d)  Assuming the Defense.
                   -------------------- 
 
                   (i) Acquirer as Indemnifying Party. If the indemnifying party
                       ------------------------------
is Acquirer, Acquirer shall have the right and obligation to control the defense
of the action alleging a Violation, provided, however, that the indemnified
party or parties will have the right to participate at its own expense in the
defense of such action. If Acquirer fails to defend the

                                      -7-
<PAGE>
 
action, or in the event of a conflict of interest between the indemnifying party
and the indemnified party, Acquirer will indemnify the selling Rights Holders
for any reasonable attorneys' fees and other expenses reasonably incurred by
them in connection with investigating or defending such action.

                   (ii) Selling Rights Holder as Indemnifying Party. The
                        ------------------------------------------- 
Indemnifying party shall have the right, at its option, to assume and control
the defense of any action with respect to which a person is entitled in Section
1.4(b) to indemnification.
 
              (e)  Defect Eliminated in Final Prospectus. The availability of 
                   -------------------------------------
the provisions of this Section 1.4 are subject to the condition that, insofar as
they relate to any Violation related to a preliminary prospectus but eliminated
or remedied in the amended or supplemented prospectus which is effective at the
time the sale of Registrable Securities under such registration statement occurs
(the "AMENDED PROSPECTUS"), Section 1.4 shall not inure to the benefit of any
Person if a copy of the Amended Prospectus was furnished to such Person and was
not furnished to the claimant asserting the Damages giving rise to indemnity
claims under this Section 1.4, at or prior to the time such action is required
by the 1933 Act.
 
              (f)  Survival.  The obligations of Acquirer and the Rights Holders
                   --------                                                     
under this Section 1.4 shall survive the completion of any offering of
Registrable Securities in a registration statement pursuant to this Agreement
and otherwise.
 
     2.   RESTRICTIONS ON RESALE
 
          2.1 Restrictions on Key Employees.
              ----------------------------- 
 
              (a) Except for Exchange Shares eligible for resale pursuant to
clause "(i)" of Section 2.1(b), the Exchange Shares issued to each Stockholder
designated as a "KEY EMPLOYEE" in Schedule 1.1 will not constitute Registrable
                                  ------------
Shares for the purposes of this Agreement. Accordingly, except for Exchange
Shares eligible for resale pursuant to clause "(i)" of Section 2.1(b), the Key
Employees will not have any of the rights or obligations set forth in Article 1
of this Agreement.
 
              (b) Each Key Employee will not sell, transfer or otherwise dispose
of the Exchange Shares that each receives in exchange for outstanding Target
capital stock pursuant to the Merger until the date that is three years after
the Closing Date; provided, however, that each Key Employee may sell, transfer
or otherwise dispose of: (i) up to twenty-five percent (25%) of the total of his
or her Exchange Shares and shares purchasable upon the exercise of Exchange
Options that are vested as of the Effective Time (collectively, the "RESTRICTED
SHARES") from the Effective Time until the date that is one year after the
Effective Time, subject to the conditions and limitations of Article 1, (ii) up
to another twenty-five percent (25%) of his or her Restricted Shares after the
date that is one year after the Effective Time if such Key Employee is still
employed by Acquirer or Target one year after the Effective Time; and (iii) the
remaining fifty percent (50%) of his or her Restricted Shares after the date
that is two years after the Effective Time if such Key Employee is still
employed by Acquirer or Target two years after the

                                      -8-
<PAGE>
 
Effective Time. If a Key Employee's employment with Target or Acquirer
terminates, then the restrictions set forth in this paragraph shall no longer
apply to that Key Employee as of the date of such termination if either: (1) the
Key Employee was terminated without Cause by Acquirer or Target; (2) the Key
Employee's responsibilities were substantially reduced and the Key Employee was
not offered another position with a span of responsibilities similar to his or
her current responsibilities; or (3) the Key Employee was to be relocated by
Acquirer or Target to a location more than one hundred (100) miles from such Key
Employee's then existing location and the Key Employee declined to relocate.
 
          2.2  Restrictions on Holders of Narrative Preferred Stock.  Each
               ----------------------------------------------------       
holder of Target Preferred Stock as of the date of the Plan will not sell,
transfer or otherwise dispose of more than fifty percent (50%) of the Exchange
Shares that each receives in exchange for his or her Target Preferred Stock
before February 15, 1999.  Each such holder may sell, transfer or otherwise
dispose of the remaining Exchange Shares received in exchange for his or her
Target Preferred Stock at any time after February 15, 1999, subject to the
conditions and limitations of Article 1.  The restrictions in this paragraph
will not apply to any Key Employees; instead, such Key Employees will be bound
by the restrictions in Section 2.1.
 
     3.   ASSIGNMENT

          Notwithstanding anything in this Agreement to the contrary, a Rights
Holder may only assign his or her rights under this Agreement with Acquirer's
express prior written consent, which may be withheld at Acquirer's sole
discretion; provided, however, that the rights of a Rights Holder under this
Agreement may be assigned without Acquirer's express prior written consent: (a)
to a Permitted Assignee (as defined below); or (b) if applicable, by will or by
the laws of intestacy, descent or distribution, provided that the assignee
agrees in writing to be bound by all the obligations of the Rights Holders under
this Agreement.  Any attempt to assign any rights of a Rights Holder under this
Agreement without Acquirer's express prior written consent when required by this
paragraph shall be null and void and without effect.  Subject to the foregoing
restrictions, all rights, covenants and agreements in this Agreement by or on
behalf of the parties hereto will bind and inure to the benefit of the
respective permitted successors and assigns of the parties hereto.  Each of the
following parties are "PERMITTED ASSIGNEES" for purposes of this Article 3:  (a)
a trust whose beneficiaries consist solely of a Rights Holder and/or such Rights
Holder's immediate family; (b) the personal representative (including an
executor of a Rights Holder's will), custodian or conservator of a Rights
Holder, in the case of the death, bankruptcy or adjudication of incompetency of
that Rights Holder; (c) immediate family members of a Rights Holder; (d) the
limited partners of a limited partnerships; or (e) the members of a limited
liability company.

 
     4.   GENERAL PROVISIONS
 
          4.1  Entire Agreement.  This Agreement and the relevant provisions of
               ----------------                                                
the Plan constitute the entire agreement of the parties to this Agreement with
respect to the subject matter hereof, and this Agreement supersedes all prior
and contemporaneous agreements or 

                                      -9-
<PAGE>
 
understandings, inducements or conditions, express or implied, written or oral,
between the parties with respect to the subject matter hereof. The express terms
hereof control and supersede any course of performance or usage of the trade
inconsistent with any of the terms hereof.
 
          4.2  No Third Party Beneficiaries.  No provisions of this Agreement
               ----------------------------                                  
are intended, nor will be interpreted, to confer upon any person or entity,
other than the parties hereto and their permitted successors and assigns, any
third party beneficiary rights or remedies or other rights or remedies under or
by reason of this Agreement.  Except as provided in this Agreement, all
provisions hereof will be personal solely between the parties hereto.
 
          4.3  Construction of Agreement.  This Agreement has been negotiated by
               -------------------------                                        
the respective parties hereto and their attorneys and have been reviewed by each
party hereto.  Accordingly, no ambiguity in the language of this Agreement will
be construed for or against either party.
 
          4.4  Section Headings.  A reference to a section, article or exhibit
               ----------------                                               
will mean a section in, article in or exhibit to this Agreement unless otherwise
explicitly set forth.  The titles and headings herein are for reference purposes
only and will not in any manner limit the construction of this Agreement, which
will be considered as a whole.
 
          4.5  Amendment, Waivers.  Any term or provision of this Agreement may
               ------------------                                              
be amended and the observance thereof may be waived only with the written
consent of Acquirer and Rights Holders who own a majority of all the Registrable
Securities then outstanding.  No waiver by any party of any such condition or
breach, in any one instance, shall be deemed to be a further or continuing
waiver of any such condition or breach or a waiver of any other condition or
breach of any other provision contained herein.  The failure of any party to
enforce any of the provisions hereof will not be construed to be a waiver of the
right of such party thereafter to enforce such provisions.  Any amendment or
waiver effected in accordance with this paragraph shall be binding upon each
Rights Holder, each permitted successor or assignee of each Rights Holder and of
Acquirer.
 
          4.6  Severability.  If any provision of this Agreement or its
               ------------                                            
application will for any reason and to any extent be invalid or unenforceable,
the remainder of this Agreement and application of such provision to other
persons or circumstances will be interpreted so as to effect the intent of the
parties hereto.  The parties will replace such void or unenforceable provision
of this Agreement with a valid and enforceable provision that will achieve, to
the extent possible, the economic, business and other purposes of the void or
unenforceable provision.
 
          4.7  Governing Law.  The validity of this Agreement the construction
               -------------                                                  
of its terms, and the interpretation and enforcement of the rights and duties of
the parties of this Agreement will be exclusively governed by and construed in
accordance with the internal laws of the State of Delaware, as applied to
agreements entered into solely between residents of and to be performed entirely
in the State of Delaware, without reference to that body of law relating to
conflicts of law or choice of law.
 

                                      -10-
<PAGE>
 
          4.8  Notices.  All notices, instructions and other communications
               -------                                                     
required or permitted to be given under this Agreement or necessary or
convenient in connection herewith must be in writing and shall be deemed given:
(a) when personally served or when delivered by telex or facsimile; (b) one
business day after deposit with an overnight courier service as shown by the
records of such delivery service; (c) on the business day of transmission if
such notice is sent by facsimile and the sender receives electronic confirmation
of receipt by the recipient; or (d) on the earlier of actual receipt or the
third business day following the date on which the notice is deposited in the
United States mail, first class certified or registered mail, postage prepaid,
addressed as follows:

If to Acquirer:         At Home Corporation                 
                        Attention: General Counsel           
                        425 Broadway Street                  
                        Redwood City, CA  94063              
                        Fax Number: (650) 569-5100           
                                                             
with a copy to:         Fenwick & West LLP                   
                        Attention: Gordon Davidson, Esq.     
                        Two Palo Alto Square                 
                        Palo Alto, California 94306          
                        Fax Number:  (650) 494-1417          
                                                             
If to a Stockholder:    Stockholder's name                    
                        Stockholder's street address (as set forth on Exhibit A)
                                                                      --------- 
                        City, State

with a copy to:         Ropes & Gray                    
                        Attention: Jane Goldstein, Esq. 
                        One International Place         
                        Boston, MA  02110-2624          
                        Fax Number: (617) 951-7050       

or to such other address as a party designates in a writing delivered to each of
the other parties hereto in accordance with this paragraph.  A party will be
deemed to have "notified" another party hereto of a matter when notice of such
matter is provided pursuant to this paragraph.

          4.9  Counterparts.  This Agreement may be executed in any number of
               ------------                                                  
counterparts, each of which shall be deemed an original as regards any party
whose signature appears thereon, but all of which together shall constitute one
and the same instrument.  This Agreement will become binding when two or more
counterparts hereof, individually or taken together, bear the signatures of each
of the parties reflected hereon as signatories.
 
          4.10 Effectiveness of Agreement.  Regardless of when signed and
               --------------------------                                
notwithstanding provisions in this Agreement to the contrary, this Agreement
will not become effective or binding unless and until the Effective Time of the
Merger.

                                      -11-
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement
effective as of the date of this Agreement.


AT HOME CORPORATION


By:  /s/ Charles Moldow
     ----------------------------

Name:  Charles Moldow

Title: Vice President of @Media
       Sales and Marketing



STOCKHOLDERS


/s/ Hilmi Ozguc                         /s/ Scott Kliger
- ---------------------------------       ---------------------------------
Hilmi Ozguc                             Scott Kliger


/s/ Allison Parker                      /s/ Joanne Bryce
- ---------------------------------       ---------------------------------
Allison Parker                          Joanne Bryce


/s/ Lauren Chatham                      /s/ Wei-Meng Chee
- ---------------------------------       --------------------------------- 
Lauren Chatham                          Wei-Meng Chee



                    [SIGNATURE PAGE #1 TO RIGHTS AGREEMENT]

                                      -12-
<PAGE>
 
/s/ Jim Coloprisco                      /s/ Sarah Groark
- ---------------------------------       --------------------------------- 
Jim Coloprisco                          Sarah Groark


/s/ Mike Kopel                          /s/ John Landry
- ---------------------------------       --------------------------------- 
Mike Kopel                              John Landry


/s/ Carma Makarawicz                    /s/ Pat O'Brien
- ---------------------------------       --------------------------------- 
Carma Makarawicz                        Pat O'Brien


/s/ John Puopolo                        /s/ Paul Santinelli
- ---------------------------------       --------------------------------- 
John Puopolo                            Paul Santinelli


/s/ Grant Schneider                     /s/ Alexandra Trevelyan
- ---------------------------------       --------------------------------- 
Grant Schneider                         Alexandra Trevelyan


/s/ Mike Trinkala                       /s/ David White
- ---------------------------------       --------------------------------- 
Mike Trinkala                           David White


/s/ Nancy Wilson                        /s/ Cathy Fielding
- ---------------------------------       --------------------------------- 
Nancy Wilson                            Cathy Fielding



                    [SIGNATURE PAGE #2 TO RIGHTS AGREEMENT]

                                      -13-
<PAGE>
 
ELLMORE C. PATTERSON PARTNERS

By:    /s/ Arthur C. Patterson
       ---------------------------------       

Name:  Arthur C. Patterson

Title: General Partner


CARLYLE VENTURE PARTNERS, L.P.

By:    Its General Partner, TCG Ventures, Ltd.

By:    /s/ J. Mitchell Reese
       --------------------------------- 

Name:  J. Mitchell Reese

Title: Attorney-in-fact


CARLYLE U.S. VENTURE PARTNERS, L.P.

By:    Its General Partner, TCG Ventures, L.L.C.

By:    /s/ J. Mitchell Reese
       --------------------------------- 

Name:  J. Mitchell Reese

Title: Managing Director


CARLYLE VENTURE COINVESTMENT, L.L.C.

By:    Its General Partner, TCG Ventures, L.L.C.

By:    /s/ J. Mitchell Reese
       --------------------------------- 

Name:  J. Mitchell Reese

Title: Managing Director



                    [SIGNATURE PAGE #3 TO RIGHTS AGREEMENT]

                                      -14-
<PAGE>
 
GREYLOCK EQUITY GP LIMITED PARTNERSHIP

By:    /s/ Henry F. McCance
       --------------------------------- 

Name:  Henry F. McCance

Title: General Partner


ACCEL V L.P.

By:    /s/ Carter Sednaoui
       --------------------------------- 

Name:  Carter Sednaoui

Title: Managing Member


ACCEL INTERNET/STRATEGIC
TECHNOLOGY FUND L.P.

By:    /s/ Carter Sednaoui
       --------------------------------- 

Name:  Carter Sednaoui

Title: Managing Member

ACCEL KEIRETSU V L.P.

By:    /s/ Carter Sednaoui
       --------------------------------- 

Name:  Carter Sednaoui

Title: Managing Member

ACCEL INVESTORS '96 L.P.

By:    /s/ Carter Sednaoui
       --------------------------------- 

Name:  Carter Sednaoui

Title: General Partner

                    [SIGNATURE PAGE #4 TO RIGHTS AGREEMENT]

<PAGE>
 
/s/ Thomas Middleton
- --------------------------------- 
Thomas Middleton


/s/ Gregory White
- --------------------------------- 
Gregory White


/s/ Jamie Bertasi
- --------------------------------- 
Jamie Bertasi


/s/ Frank Kashner
- --------------------------------- 
Frank Kashner





                    [SIGNATURE PAGE #5 TO RIGHTS AGREEMENT]

                                      -16-

<PAGE>
 
                                                                    EXHIBIT 99.1

FOR IMMEDIATE RELEASE

Contact:    Matt Wolfrom/Lauren Meller         Matt Fanning           
            --------------------------         ------------           
            @Home Network                      Comcast Corporation    
            650/569-5195/5181                  215/981-8589            


                @Home Network Acquires Narrative Communications
                         For Approximately $89 Million

           Combination of Narrative's Enliven Technology with @Home
        Network Offers Powerful Internet Advertising Solutions; Expands
           @Home Network Reach to Internet Advertisers and Consumers
                                  Everywhere

REDWOOD CITY, Calif., December 18, 1998 -@Home Network (Nasdaq: ATHM), the
leading provider of Internet services via the cable infrastructure, today
announced that it has entered into an agreement to acquire Narrative
Communications Corp., the leader in high-impact rich media advertising solutions
for the Web.  At the closing date of the transaction, valued at approximately
$89 million at @Home's closing price on December 17, 1998, Narrative will become
the Enliven Business Unit of @Home Network.  The closing of the transaction is
subject to several conditions, but is expected to occur in late December 1998 or
early January 1999.

The acquisition will fuel the rapid growth of richer, more engaging Internet
advertisements.  Ads created with the Enliven rich media advertising technology
deliver unique value to both advertisers and consumers through a variety of
multimedia, interactive, and commerce capabilities and campaign tracking and
reporting.  According to Forrester Research, results driven by these advantages
are expected to grow rich media advertising to 20 percent of all banner ads run
in 1999.

The combination of @Home's broadband marketplace leadership and the widespread
adoption of Narrative's Enliven services and technology creates a world class
entity to accelerate the evolution of the Internet as the prevalent advertising,
direct marketing, and commerce medium.  Ad agencies and major advertisers such
as General Motors, Hewlett Packard, IBM, Procter and Gamble, and Sprint  have
moved to implement Enliven-based campaigns to increase the effectiveness of
their online advertising and direct marketing initiatives.

"The merger of our business with Narrative's is about growth of @Home Network,
growth of rich media advertising solutions for our customers, and growth of the
Internet advertising market," said Charles Moldow, vice president, @Media sales
and marketing for @Home Network.  "Not only do we become a one-stop-shop for
interactive Web
<PAGE>
 
advertising campaigns across the continuum of Internet connections, we'll also
have the ability to build more interactive multimedia effects into @Home's
online publishing and advertising content."

Advertisers will have the option of conducting large-scale, highly interactive,
rich media advertising campaigns across a full complement of Internet
distribution channels, including standard dial-up, high speed (T1, ISDN), @Home
broadband PC, and TV set-top connections.  Across this distribution network,
advertisers will leverage Enliven's comprehensive palette of creative options to
deliver high quality, fully interactive video, audio, and animated ads to a
broad Internet audience.  Enliven also empowers consumers to conduct e-commerce
transactions, print marketing collateral on-demand, submit lead generation
information, and execute database queries within the ad.

"We will continue to aggressively develop technologies and service offerings to
facilitate the creation, delivery, and measurement of more effective online
advertising, marketing, and commerce campaigns," said Hilmi Ozguc, co-founder
and CEO of Narrative.  "With the resources of @Home behind us, we aim to
establish Enliven as the clear standard for advertising across PC, TV set-top,
and consumer devices connected to the Internet."

Easy ad creation, wide distribution, detailed results measurement, and superior
consumer experiences are frequently cited reasons why advertisers chose Enliven
over traditional GIF ad banners and other Java-based solutions.

TERMS OF THE AGREEMENT
Narrative's management, employees and offices will remain largely unchanged, and
will continue to serve its existing customer base of advertisers and agencies in
delivering innovative campaigns across a wide range of publishing sites,
platforms, and connection speeds.

Under terms of the merger agreement, @Home will acquire all outstanding shares
and assume all outstanding options and warrants of Narrative in exchange for
1.34 million to 1.55 million shares of @Home common stock, based on the closing
price of @Home's stock.  @Home would issue 1.34 million shares in the merger
valued at approximately $89,000,000, based on the closing price of @Home common
stock on December 17, 1998.  The companies anticipate the transaction, which is
subject to several conditions, will close in late December  1998 or early
January 1999.

ABOUT ENLIVEN SERVICES
Narrative's Enliven Services is a complete set of end-to-end network and
professional service offerings that provides advertisers with one-stop access to
all the tools required to create, deliver, measure, and manage highly
interactive multimedia Web ad campaigns. Enliven Services includes ad production
consulting, campaign hosting, site acceptance management, consolidated campaign
reporting and measurement, and technical support services. All Enliven Services
support Macromedia Director authoring, enabling advertisers to leverage existing
skills and creative assets.
<PAGE>
 
More than 50 leading advertising agencies use Enliven to create results-driven
campaigns that are run on over 300 Web sites, making Enliven the most widely
used and published rich media solution on the Web.

ABOUT NARRATIVE COMMUNICATIONS CORP.
Narrative Communications Corp. is the leading provider of highly effective, rich
media advertising technologies and solutions to the Internet advertising
community.  Narrative's mission is to enable customers and partners to improve
the effectiveness of online advertising, and drive the success of the rich media
advertising market, by making Enliven the standard Web advertising solution.
The company develops and markets a complete set of offerings that combines
innovative Web advertising technologies with comprehensive ad delivery,
measurement and transactional services, enabling businesses to substantially
increase the effectiveness of their online branding, direct marketing and
electronic commerce campaigns.  Narrative had a net loss of approximately $5.7
million on revenue of approximately $250,000 in 1997 and anticipates a
comparable net loss in 1998 on revenues approximately three times those of 1997.

Narrative Communications has offices in Waltham, Mass. and Los Altos, Calif.
Corporate headquarters is located at 1601 Trapelo Road, Waltham, MA, 02451, and
can be reached by telephone at (781) 290-5300.  Narrative's Web site and email
addresses are www.narrative.com and [email protected], respectively.

@HOME NETWORK
Based in Redwood City, California, @Home Network (Nasdaq: ATHM) distributes
high-speed interactive services to residences and businesses using its own
network architecture and a variety of transport options including the cable
industry's hybrid-fiber coaxial infrastructure.  The cable connection provides
users significant increases in speed over conventional Internet services.
Leveraging the "always on" attributes of cable, @Home allows for unique
multimedia applications that go beyond current Web experiences. Individuals
seeking additional information about availability and subscription can refer to
the @Home Network Web site (www.home.net).  Since its founding in 1995, @Home
Network has reached affiliate agreements with eighteen leading cable companies-
worldwide, including Bresnan Communications Company, Cablevision Systems Corp.,
CasTel, Century Communications, Cogeco Cable Inc., Comcast Corporation, Cox
Communications, Garden State Cable, Insight Communications, InterMedia Partners,
Jones Intercable, Lenfest Communications, Marcus Cable, Midcontinent Cable Co.,
Palet Kabelcom, Rogers Cablesystems Limited, Shaw Communications, and Tele-
Communications Inc.

ACCOUNTING TREATMENT
The acquisition will be accounted for as a purchase.  The Company anticipates
that a substantial majority of the purchase price will be allocated to
intangible assets and amortized over the respective useful lives of those
assets, and the remainder will be a charge to operations related to in-process
research and development.
<PAGE>
 
                                      ###

Narrative and Enliven are trademarks of Narrative Communications Corporation.
@Home and the @ logo are registered trademarks, and @Home Network is a trademark
of At Home Corporation and may be registered in certain jurisdictions.  All
other brands and product names are trademarks of their respective owners.

This press release contains forward-looking information within the meaning of
Section 27A of the Securities Exchange Act of 1933 and Section 21E of the
Securities Exchange Act of 1934, and is subject to the safe harbors created by
those sections.  These forward-looking statements include statements related to:
Advertisers' ability to leverage Enliven's  comprehensive palette of creative
options to deliver high quality, fully interactive video, audio, and animated
ads; the future aggressive development of technologies and service offerings
related to Narrative's technology; the management, employees, and offices of
Narrative remain largely unchanged; and Narrative continuing to serve its
existing customer base of advertisers and agencies in delivering innovative
campaigns across a wide range of publishing sites, platforms, and connection
speeds.  Actual results may differ materially due to a number of factors,
including: @Home's ability to integrate Narrative's personnel into @Home's
organization; the extent to which @Home develops or acquires other technologies
that are similar to Enliven or other Narrative technologies; and the
technological, operational and financial challenges associated with the
deployment of Narrative's technology.  The matters discussed in this press
release also involve risks and uncertainties described from time to time in
@Home's filings with the Securities and Exchange Commission.  In particular, see
the risk factors described in @Home's Form S-3 Registration Statement filed on
August 12, 1998 and in its Form 10-Q for the quarter ended September 30, 1998.
@Home assumes no obligation to update the forward-looking information contained
in this press release.


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