SOFTBANK HOLDINGS INC ET AL
SC 13D/A, 1999-09-01
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 10)*

                               MESSAGEMEDIA, INC.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                    COMMON STOCK, PAR VALUE $0.001 PER SHARE
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

337486 10 4 ---------------------------------------------- (CUSIP Number)
- --------------------------------------------------------------------------------
     RONALD D. FISHER                             STEPHEN A. GRANT, ESQ.
       SOFTBANK INC.                               SULLIVAN & CROMWELL
10 LANGLEY ROAD, SUITE 403                          125 BROAD STREET
  NEWTON CENTER, MA 02159                          NEW YORK, NY 10004
      (617) 928-9300                                 (212) 558-4000
- --------------------------------------------------------------------------------
(Name, Address and Telephone Number of Person Authorized to Receive Notices and
Communications)

                                 AUGUST 16, 1999
                  ---------------------------------------------
             (Date of Event which Requires Filing of this Statement)


If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[_].

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of the  schedule,  including  all  exhibits.  See Rule 13d-1(a) for other
parties to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 (the "Act") or otherwise  subject to the liabilities of that section of the
Act but shall be subject to all other  provisions of the Act  (however,  see the
Notes).








                                  PAGE 1 OF 134

<PAGE>


                                  SCHEDULE 13D
__________________________                            __________________________

CUSIP No. 337486 10 4                                     Page 2 of 134 Pages
__________________________                            __________________________
________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

     SOFTBANK AMERICA INC.
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]
________________________________________________________________________________
3    SEC USE ONLY


________________________________________________________________________________
4    SOURCE OF FUNDS*

     OO
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]

________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     DELAWARE
________________________________________________________________________________
               7    SOLE VOTING POWER

                    0
               _________________________________________________________________
  NUMBER OF    8    SHARED VOTING POWER
   SHARES
BENEFICIALLY        21,151,550
  OWNED BY     _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON           0
    WITH       _________________________________________________________________
               10   SHARED DISPOSITIVE POWER

                    21,151,550
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     21,151,550
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]
________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     42.40%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     CO
________________________________________________________________________________

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>

                                  SCHEDULE 13D
__________________________                            __________________________

CUSIP No. 337486 10 4                                     Page 3 of 134 Pages
__________________________                            __________________________
________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

     SOFTBANK HOLDINGS INC.
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]
________________________________________________________________________________
3    SEC USE ONLY


________________________________________________________________________________
4    SOURCE OF FUNDS*

     WC
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]

________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     DELAWARE
________________________________________________________________________________
               7    SOLE VOTING POWER

                    0
               _________________________________________________________________
  NUMBER OF    8    SHARED VOTING POWER
   SHARES
BENEFICIALLY        24,472,767
  OWNED BY     _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON           0
    WITH       _________________________________________________________________
               10   SHARED DISPOSITIVE POWER

                    21,151,550
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     24,472,767
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]
________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     49.05%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     HC, CO
________________________________________________________________________________

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>


                                  SCHEDULE 13D
__________________________                            __________________________

CUSIP No. 337486 10 4                                     Page 4 of 134 Pages
__________________________                            __________________________
________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

     SOFTBANK CORP.
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]
________________________________________________________________________________
3    SEC USE ONLY


________________________________________________________________________________
4    SOURCE OF FUNDS*

     AF
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]

________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     JAPAN
________________________________________________________________________________
               7    SOLE VOTING POWER

                    0
               _________________________________________________________________
  NUMBER OF    8    SHARED VOTING POWER
   SHARES
BENEFICIALLY        25,606,277
  OWNED BY     _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON           0
    WITH       _________________________________________________________________
               10   SHARED DISPOSITIVE POWER

                    22,285,060
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     25,606,277
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]
________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     51.33%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     HC, CO
________________________________________________________________________________

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>


                                  SCHEDULE 13D
__________________________                            __________________________

CUSIP No. 337486 10 4                                     Page 5 of 134 Pages
__________________________                            __________________________
________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

     MASAYOSHI SON
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]
________________________________________________________________________________
3    SEC USE ONLY


________________________________________________________________________________
4    SOURCE OF FUNDS*

     AF
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]

________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     JAPAN
________________________________________________________________________________
               7    SOLE VOTING POWER

                    0
               _________________________________________________________________
  NUMBER OF    8    SHARED VOTING POWER
   SHARES
BENEFICIALLY        25,606,277
  OWNED BY     _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON           0
    WITH       _________________________________________________________________
               10   SHARED DISPOSITIVE POWER

                    22,285,060
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     25,606,277
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]
________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     51.33%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     IN
________________________________________________________________________________

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>

                                  SCHEDULE 13D
__________________________                            __________________________

CUSIP No. 337486 10 4                                     Page 6 of 134 Pages
__________________________                            __________________________
________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

     STV IV LLC
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]
________________________________________________________________________________
3    SEC USE ONLY


________________________________________________________________________________
4    SOURCE OF FUNDS*

     AF
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]

________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     DELAWARE
________________________________________________________________________________
               7    SOLE VOTING POWER

                    0
               _________________________________________________________________
  NUMBER OF    8    SHARED VOTING POWER
   SHARES
BENEFICIALLY        13,896,992
  OWNED BY     _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON           0
    WITH       _________________________________________________________________
               10   SHARED DISPOSITIVE POWER

                    10,575,775
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     13,896,992
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]
________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     27.86%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     OO
________________________________________________________________________________

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>

                                  SCHEDULE 13D
__________________________                            __________________________

CUSIP No. 337486 10 4                                     Page 7 of 134 Pages
__________________________                            __________________________
________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

     SOFTBANK TECHNOLOGY VENTURES IV L.P.
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

________________________________________________________________________________
3    SEC USE ONLY


________________________________________________________________________________
4    SOURCE OF FUNDS*

     WC
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]

________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     DELAWARE
________________________________________________________________________________
               7    SOLE VOTING POWER

                    0
               _________________________________________________________________
  NUMBER OF    8    SHARED VOTING POWER
   SHARES
BENEFICIALLY        13,698,167
  OWNED BY     _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON           0
    WITH       _________________________________________________________________
               10   SHARED DISPOSITIVE POWER

                    10,376,950
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     13,698,167
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]
________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     27.46%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     PN
________________________________________________________________________________

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.


<PAGE>



         SOFTBANK America Inc., a Delaware corporation ("SB America"),  SOFTBANK
Holdings  Inc.,  a Delaware  corporation  ("SBH"),  SOFTBANK  Corp.,  a Japanese
corporation  ("SOFTBANK"),  Mr.  Masayoshi  Son,  a Japanese  citizen,  SOFTBANK
Technology  Ventures  IV  L.P.,  a  Delaware  limited   partnership   ("SOFTBANK
Technology"),  and STV IV LLC, a Delaware limited  liability  company ("STV" and
together with SB America,  SBH, SOFTBANK,  Mr. Son and SOFTBANK Technology,  the
"Reporting Persons"),  hereby amend and supplement the statement on Schedule 13D
previously filed by them, as heretofore  amended and supplemented,  with respect
to the  Common  Stock,  par value  $0.001  per share (the  "Common  Stock"),  of
MessageMedia,  Inc.,  a Delaware  corporation  formerly  known as First  Virtual
Holdings  Incorporated (the "Company"),  beneficially  owned by them, to reflect
the  acquisition of shares of Common Stock of the Company by SOFTBANK  Ventures,
Inc.,  a Japanese  corporation  ("SVI"),  in  connection  with the merger of the
Company and Decisive Technology Corporation ("Decisive"), which became effective
on August 16, 1999.  The statement on Schedule  13D, as  heretofore  amended and
supplemented and as amended and supplemented  hereby (the "Statement"),  remains
in full force and effect.


ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

         Item 5 is hereby amended and restated as follows:

Total Outstanding Shares
- ------------------------

         The percentage  interest held by each Reporting  Person presented below
is based on the 49,890,388  shares of Common Stock reported to be outstanding as
of  August  16,  1999,  after the  merger of  Decisive  and the  Company  became
effective,  as  communicated  to  the  Reporting  Persons  by the  Company  (the
"Outstanding Shares").

Decisive Merger
- ---------------

         On August 16, 1999,  pursuant to the  Agreement  and Plan of Merger and
Reorganization filed as Exhibit S hereto, the merger of Decisive and the Company
became  effective,  and each  outstanding  share of common stock of Decisive was
converted into 0.0777 shares of Common Stock of the Company.  Accordingly,  SVI,
as the "operating principal" under a "silent partnership agreement" (a so-called
tokumei kumiai keiyaku), received 254,022 shares of Common Stock in exchange for
Decisive common stock  previously owned by it. SVI holds the shares on behalf of
the silent partnership.

Relationships among Stockholders
- --------------------------------

         By  virtue of its  ownership  of a 50%  interest  in STV,  the  general
partner of SOFTBANK  Technology  and SOFTBANK  Technology  Advisers Fund L.P., a
Delaware partnership  ("STAF"), SB America may be deemed the beneficial owner of
shares of Common Stock owned by SOFTBANK Technology and STAF.


                                  PAGE 8 OF 134


<PAGE>



         SB  America is a wholly  owned  subsidiary  of SBH,  which in turn is a
wholly  owned  subsidiary  of  SOFTBANK.  Mr.  Son is the  President  and  Chief
Executive  Officer of  SOFTBANK  and owns an  approximately  43.3%  interest  in
SOFTBANK.  Accordingly,  securities owned by SB America may be regarded as being
beneficially  owned by SBH;  securities  owned by SBH may be  regarded  as being
beneficially owned by SOFTBANK; and securities owned by SOFTBANK may be regarded
as being beneficially owned by Mr. Son.

         SOFTBANK  also may be deemed the  beneficial  owner of shares of Common
Stock  owned  by SVI on  behalf  of the  silent  partnership  by  virtue  of its
ownership of all of the stock of SVI,  which under Japanese law has voting power
and  investment  power  over  such  shares.  SOFTBANK  may  also be  deemed  the
beneficial  owner of shares of Common  Stock owned by SOFTVEN  No. 2  Investment
Enterprise  Partnership,  a Japanese partnership  ("SOFTVEN"),  by virtue of its
ownership  of  all of  the  stock  of  SoftVen  Capital  Co.  Ltd.,  a  Japanese
corporation that serves as the general partner of SOFTVEN.

         In the Voting Agreement  described in Item 6 of the Statement,  Mr. Lee
Stein, Mrs. June Stein,  Paymentech Merchant Services,  Inc.  ("Paymentech") and
First USA  Financial,  Inc.  ("First  USA") have  agreed  with SBH and  SOFTBANK
Technology to vote their shares in furtherance of certain mutual agreements.  As
a result,  SBH, and  SOFTBANK and Mr. Son through SBH, and SOFTBANK  Technology,
and STV through SOFTBANK Technology, may be deemed to have shared power to vote,
and therefore may be deemed to beneficially  own, the Common Stock  beneficially
owned by Mr. Stein, Mrs. Stein, Paymentech and First USA.

Share Ownership
- ---------------

         As of August 16, 1999:

     o   SB America owns 10,575,775 shares of Common Stock;

     o   SOFTBANK Technology owns 10,376,950 shares of Common Stock;

     o   STAF owns 198,825 shares of Common Stock;

     o   SVI owns 254,022 shares of Common Stock; and

     o   SOFTVEN owns 879,488 shares of Common Stock.

         As of April 30, 1998, the aggregate number of shares beneficially owned
by Mr. Stein, Mrs. Stein,  Paymentech and First USA was 3,321,217,  representing
6.93% of the Outstanding Shares.

Total Beneficial Ownership of Reporting Persons
- -----------------------------------------------

          As a result of the relationships described above:

     o    SOFTBANK  Technology  may be deemed  to  beneficially  own  13,698,167
          shares of Common Stock or 27.46% of the Outstanding Shares.

     o    STV may be  deemed to  beneficially  own  13,896,992  shares of Common
          Stock or 27.86% of the Outstanding Shares.

                                  PAGE 9 OF 134


<PAGE>




     o    SB America  may be deemed to  beneficially  own  21,151,550  shares of
          Common Stock or 42.40% of the Outstanding Shares.

     o    SBH may be  deemed to  beneficially  own  24,472,767  shares of Common
          Stock or 49.05% of the Outstanding Shares.

     o    SOFTBANK  and Mr.  Son may be deemed to  beneficially  own  25,606,277
          shares of Common Stock or 51.33% of the Outstanding Shares.


ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS
         WITH RESPECT TO SECURITIES OF THE ISSUER.

         Item 6 is  hereby  amended  and  supplemented  by the  addition  of the
following:

         The  Company   entered  into  an  Agreement  and  Plan  of  Merger  and
Reorganization  dated as of July 27, 1999 (the "Decisive Merger Agreement") with
MM2  Acquisition  Corp.  and  Decisive in which the  Company  agreed to exchange
0.07777 of its shares for each  outstanding  share of voting  stock of  Decisive
(the "Decisive  Merger").  Upon the completion of the Decisive Merger,  Decisive
became a wholly owned subsidiary of the Company.

         In Section 10.1 of the Decisive Merger  Agreement,  the shareholders of
Decisive,  including SVI, appointed an agent (the "Securityholders'  Agent") and
approved  the terms of the form of  registration  rights  agreement  included as
Annex I to the Decisive Merger Agreement. On July 27, 1999, the Securityholders'
Agent,  the Company and Decisive entered into the Decisive  Registration  Rights
Agreement (the "Decisive Registration Rights Agreement") which was substantially
in the form of Annex I to the Decisive Merger  Agreement and which provides that
the Company shall register  shares of its Common Stock that were issued pursuant
to the Decisive Merger Agreement and permits certain  substantial  shareholders,
including  SVI, to include  their shares in any  registration  of the  Company's
shares that occurs  within  twelve  months  following  the date of the  Decisive
Merger Agreement.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS.

         Item 7 is  hereby  amended  and  supplemented  by the  addition  of the
following:

         Exhibit S Agreement and Plan of Merger and Reorganization  dated as  of
                   July 27,  1999 among  the Company, MM2 Acquisition Corp.  and
                   Decisive Technology Corporation.



                                  PAGE 10 OF 134


<PAGE>


                                    SIGNATURE

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

September 1, 1999




SOFTBANK AMERICA                          SOFTBANK CORPORATION


By: /s/ RONALD D. FISHER                  By: /s/ RONALD D. FISHER
   ------------------------                  ----------------------------
   Name: Ronald D. Fisher                    Name: Ronald D. Fisher
   Title:  Vice Chairman                     Title:  Attorney-in-Fact



SOFTBANK HOLDINGS INC.                    MASAYOSHI SON


By: /s/ RONALD D. FISHER                  By: /s/ RONALD D. FISHER
   -------------------------                 ----------------------------
   Name: Ronald D. Fisher                    Name: Ronald D. Fisher
   Title: Vice Chairman                      Title:  Attorney-in-Fact



STV IV LLC                                SOFTBANK TECHNOLOGY VENTURES IV L.P.


By: /s/ RONALD D. FISHER                    By:  STV IV LLC
   -------------------------                     Its General Partner
Name: Ronald D. Fisher
Title:  Attorney-in-Fact
                                                 By: /s/ RONALD D. FISHER
                                                    ----------------------------
                                                 Name: Ronald D. Fisher
                                                 Title:  Attorney-in-Fact






                                  PAGE 11 OF 134



<PAGE>

                                 EXHIBIT INDEX


Exhibit                                                                EDGAR
  No.         Description                                             Exhibit
- -------       -----------                                             -------

Exhibit S     Agreement  and Plan of  Merger  and  Reorganization       EX-2
              dated as of July 27,  1999 among the  Company,  MM2
              Acquisition    Corp.   and   Decisive    Technology
              Corporation.




================================================================================


                 AGREEMENT AND PLAN OF MERGER AND REORGANIZATION


                                     among:


                               MESSAGEMEDIA, INC.,
                             a Delaware corporation;


                             MM2 ACQUISITION CORP.,
                             a Delaware corporation;


                                       and


                        DECISIVE TECHNOLOGY CORPORATION,
                            a California corporation;





                    ----------------------------------------

                            Dated as of July 27, 1999

                    ----------------------------------------



================================================================================




<PAGE>



                                    EXHIBITS

Exhibit A    -    Certain definitions

Exhibit B1   -    Form of Voting Agreement

Exhibit B2   -    Persons to execute Voting Agreements

Exhibit C    -    Form of Company Charter Amendment

Exhibit D    -    Form of Securityholder Representation Statement

Exhibit E    -    Certain employees

Exhibit F    -    Registration Rights Agreement

Exhibit G    -    Form of Escrow Agreement




                                       1.

<PAGE>



                                TABLE OF CONTENTS

                                                                            PAGE

1.  DESCRIPTION OF TRANSACTION..............................................   1

    1.1    Merger of Merger Sub into the Company............................   1
    1.2    Effect of the Merger.............................................   1
    1.3    Closing; Effective Time..........................................   2
    1.4    Certificate of Incorporation and Bylaws; Directors
           and Officers.....................................................   2
    1.5    Conversion of Shares.............................................   2
    1.6    Stock Options....................................................   4
    1.7    Closing of the Company's Transfer Books..........................   4
    1.8    Escrow...........................................................   5
    1.9    Exchange of Certificates.........................................   5
    1.10   Dissenting Shares................................................   7
    1.11   Working Capital Adjustment.......................................   7
    1.12   Investment Banking Fee...........................................   8
    1.13   Tax Consequences.................................................   8
    1.14   Accounting Treatment.............................................   8
    1.15   Further Action...................................................   8

2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY...........................   9

    2.1    Due Organization; No Subsidiaries; Etc...........................   9
    2.2    Articles of Incorporation and Bylaws; Records....................  10
    2.3    Capitalization, Etc..............................................  10
    2.4    Financial Statements.............................................  11
    2.5    Absence of Changes...............................................  12
    2.6    Title to Assets..................................................  13
    2.7    Bank Accounts; Receivables.......................................  14
    2.8    Equipment; Leasehold.............................................  14
    2.9    Proprietary Assets...............................................  14
    2.10   Contracts........................................................  17
    2.11   Liabilities......................................................  19
    2.12   Compliance with Legal Requirements...............................  20
    2.13   Governmental Authorizations......................................  20



                                       i.

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)


                                                                            PAGE

    2.14   Tax Matters......................................................  20
    2.15   Employee and Labor Matters; Benefit Plans........................  21
    2.16   Environmental Matters............................................  24
    2.17   Insurance........................................................  25
    2.18   Related Party Transactions.......................................  25
    2.19   Legal Proceedings; Orders........................................  25
    2.20   Authority; Binding Nature of Agreement...........................  26
    2.21   Non-Contravention; Consents......................................  26
    2.22   Full Disclosure..................................................  27
    2.23   No Discussions...................................................  28
    2.24   Vote Required....................................................  28
    2.25   Financial Advisor................................................  28

3.  REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB.................  28

    3.1    Organization, Standing and Power.................................  28
    3.2    SEC Filings; Financial Statements................................  28
    3.3    Authority; Binding Nature of Agreement...........................  29
    3.4    Valid Issuance...................................................  29
    3.5    Governmental Authorization.......................................  29
    3.6    Compliance with Laws.............................................  29
    3.7    No Material Adverse Change.......................................  29
    3.8    Legal Proceedings................................................  30
    3.9    Full Disclosure..................................................  30
    3.10   Non-Contravention; Consents......................................  30
    3.12   Interim Operations of Sub........................................  31

4.  CERTAIN COVENANTS OF THE COMPANY........................................  31

    4.1    Access and Investigation.........................................  31
    4.2    Operation of the Company's Business..............................  31
    4.3    No Negotiation..................................................   33

5.  ADDITIONAL COVENANTS OF THE PARTIES.....................................  34

    5.1    Filings and Consents.............................................  34


                                       ii.

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)


                                                                            PAGE

    5.2    Company Shareholder Consent......................................  34
    5.3    Stock Options....................................................  34
    5.4    Conversion and Exercise..........................................  35
    5.5    Public Announcements.............................................  35
    5.6    Best Efforts.....................................................  36
    5.7    Tax Matters......................................................  36
    5.8    Severance and Noncompetition Agreements..........................  36
    5.9    Termination of Company Investor Rights Agreement.................  36
    5.10   FIRPTA Matters...................................................  36
    5.11   Listing..........................................................  36
    5.12   Resignation of Officers and Directors............................  36
    5.13   Securityholder Representation Statements; Appointment of
           Purchaser Representative.........................................  36
    5.14   Securities Act Exemption.........................................  37
    5.15   Stock Restrictions..............................................   37
    5.16   Registration on Form S-3; Additional Stock Restrictions..........  37
    5.17   Blue Sky Laws....................................................  38
    5.18   Notification; Updates to Disclosure Schedule.....................  38
    5.19   Nasdaq Stockholder Approval Requirements.........................  38

6.  CONDITIONS PRECEDENT TO OBLIGATIONS OF PARENT AND MERGER SUB............  39

    6.1    Accuracy of Representations......................................  39
    6.2    Performance of Covenants.........................................  39
    6.3    Shareholder Approval.............................................  39
    6.4    Consents.........................................................  39
    6.5    Agreements and Documents.........................................  39
    6.6    FIRPTA Compliance................................................  41
    6.7    Listing..........................................................  41
    6.8    No Restraints....................................................  41
    6.9    No Legal Proceedings.............................................  41
    6.10   Employees........................................................  41



                                      iii.

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)


                                                                            PAGE

    6.11   Securities Exemption.............................................  41
    6.12   Termination of Employee Plans....................................  41
    6.13   Debt Payoff......................................................  41
    6.14   Dissenters' Rights...............................................  41

7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF THE COMPANY......................  41

    7.1    Accuracy of Representations......................................  42
    7.2    Performance of Covenants.........................................  42
    7.3    Documents........................................................  42
    7.4    Listing..........................................................  43
    7.5    No Restraints....................................................  43
    7.6    Consents.........................................................  43
    7.7    No Legal Proceedings.............................................  43
    7.8    Governmental Approvals...........................................  43

8.  TERMINATION.............................................................  43

    8.1    Termination Events...............................................  43
    8.2    Termination Procedures...........................................  44
    8.3    Effect of Termination............................................  44

9.  INDEMNIFICATION, ETC....................................................  44

    9.1    Survival of Representations, Etc.................................  44
    9.2    Indemnification by Company Shareholders..........................  45
    9.3    Threshold; Ceiling...............................................  46
    9.4    Exclusive Remedy.................................................  46
    9.5    No Contribution..................................................  46
    9.6    Interest.........................................................  46
    9.7    Defense of Third Party Claims....................................  47
    9.8    Exercise of Remedies by Indemnitees Other Than Parent............  47

10. MISCELLANEOUS PROVISIONS................................................  47

    10.1   Securityholders' Agent...........................................  47
    10.2   Further Assurances...............................................  48
    10.3   Fees and Expenses................................................  48



                                       iv.

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)


                                                                            PAGE

    10.4   Attorneys' Fees..................................................  48
    10.5   Notices..........................................................  48
    10.6   Confidentiality..................................................  50
    10.7   Time of the Essence..............................................  50
    10.8   Headings.........................................................  50
    10.9   Counterparts.....................................................  50
    10.10  Governing Law....................................................  50
    10.11  Successors and Assigns...........................................  50
    10.12  Remedies Cumulative; Specific Performance........................  50
    10.13  Waiver...........................................................  51
    10.14  Amendments.......................................................  51
    10.15  Severability.....................................................  51
    10.16  Parties in Interest..............................................  51
    10.17  Entire Agreement.................................................  51
    10.18  Construction.....................................................  51




                                       v.

<PAGE>



                               AGREEMENT AND PLAN
                          OF MERGER AND REORGANIZATION

         THIS AGREEMENT AND PLAN OF MERGER AND  REORGANIZATION  ("Agreement") is
made and entered into as of July 27, 1999, by and among:  MESSAGEMEDIA,  INC., a
Delaware corporation  ("Parent");  MM2 ACQUISITION CORP., a Delaware corporation
and a wholly owned subsidiary of Parent ("Merger Sub"); and DECISIVE  TECHNOLOGY
CORPORATION, a California corporation (the "Company"). Certain other capitalized
terms used in this Agreement are defined in Exhibit A.

                                    RECITALS

         A.  Parent,  Merger  Sub and the  Company  intend to effect a merger of
Merger Sub into the Company in accordance  with this  Agreement and the Delaware
General Corporation Law (the "Merger").  Upon consummation of the Merger, Merger
Sub will cease to exist,  and the Company will become a wholly owned  subsidiary
of Parent.

         B. It is intended that the Merger qualify as a tax-free  reorganization
within the meaning of Section  368(a) of the Internal  Revenue Code of 1986,  as
amended (the "Code"). For accounting purposes, it is intended that the Merger be
treated as a "purchase."

         C.  This  Agreement  has been  approved  by the  respective  boards  of
directors of Parent, Merger Sub and the Company.

         D. In order to  induce  Parent  to enter  into  this  Agreement  and to
consummate the Merger, certain shareholders of the Company listed on Exhibit B-2
are  entering  into Voting  Agreements,  a form of which is  attached  hereto as
Exhibit  B-1,  pursuant  to which they are  agreeing to (i) vote in favor of the
adoption and approval of this  Agreement and the approval of the Merger and (ii)
to vote in favor of an amendment to the Company's  Articles of  Incorporation in
the form attached hereto as Exhibit C (the "Charter Amendment") which will cause
all of the Company's  outstanding  preferred  stock to convert into common stock
prior to the effective time of the Merger.

                                    AGREEMENT

         The parties to this Agreement,  intending to be legally bound, agree as
follows:

1.   DESCRIPTION OF TRANSACTION

         1.1 MERGER OF MERGER SUB INTO THE  COMPANY.  Upon the terms and subject
to the conditions set forth in this Agreement, at the Effective Time (as defined
in Section 1.3),  Merger Sub shall be merged with and into the Company,  and the
separate  existence of Merger Sub shall cease.  The Company will continue as the
surviving corporation in the Merger (the "Surviving Corporation").

         1.2 EFFECT OF THE MERGER.  The Merger  shall have the effects set forth
in this  Agreement  and in the  applicable  provisions  of the Delaware  General
Corporation Law and California  General  Corporation Law. At the Effective Time,
all the property, rights,  privileges,




                                       1.
<PAGE>

powers and  franchises of the Company and Merger Sub shall vest in the Surviving
Corporation,  and all debts,  liabilities  and duties of Company  and Merger Sub
shall become the debts liabilities and duties of the Surviving Corporation.

         1.3 CLOSING;  EFFECTIVE  TIME.  The  consummation  of the  transactions
contemplated by this Agreement (the  "Closing")  shall take place at the offices
of Cooley  Godward LLP,  2595 Canyon  Boulevard,  Suite 250,  Boulder,  Colorado
80302,  at 10:00 a.m. on August 11, 1999, or as soon as  practicable  after such
time as the parties  agree,  but not later than two (2) business days  following
satisfaction  or waiver  of each of the  conditions  set forth in  Section 6 and
Section 7 below (the "Scheduled  Closing  Time").  The date on which the Closing
actually  takes place is referred to in this  Agreement as the  "Closing  Date."
Contemporaneously  with or as  promptly  as  practicable  after the  Closing,  a
properly executed  certificate of merger,  together with any required  officers'
certificate,  conforming to the requirements of the Delaware General Corporation
Law and California General  Corporation Law shall be filed with the Secretary of
State of the  State  of  Delaware  and the  Secretary  of State of the  State of
California respectively. The Merger shall become effective at the time that such
documents  are  filed  or at  such  later  time  as may  be  specified  in  such
certificate of merger (the "Effective Time").

         1.4 CERTIFICATE OF  INCORPORATION  AND BYLAWS;  DIRECTORS AND OFFICERS.
Unless  otherwise  determined  by Parent and the Company  prior to the Effective
Time:

              (a) the Certificate of Incorporation of the Surviving  Corporation
shall be  amended  and  restated  as of the  Effective  Time to  conform  to the
Certificate of Incorporation of Merger Sub as in effect immediately prior to the
Effective Time;

              (b) the Bylaws of the Surviving  Corporation  shall be amended and
restated as of the  Effective  Time to conform to the Bylaws of Merger Sub as in
effect immediately prior to the Effective Time; and

              (c) the directors and officers of Merger Sub immediately  prior to
the Effective Time shall continue as the directors and officers of the Surviving
Corporation immediately after the Effective Tune.

         1.5. CONVERSION OF SHARES.

              (a) Subject to Sections 1.5(c),  1.5(d) and 1.10, at the Effective
Time,  by virtue of the Merger and  without  any  further  action on the part of
Parent,  Merger Sub,  the Company or any  shareholder  of the Company  ("Company
Shareholder"):

                  (i) any shares of common  stock of the Company  (the  "Company
Common  Stock")  then held by the  Company (or held in the  Company's  treasury)
shall be canceled  and retired and shall cease to exist at the  Effective  Time,
and no consideration shall be delivered in exchange therefor;

                  (ii) any shares of Company Common Stock then held by Parent or
Merger  Sub  shall be  canceled  and  retired  and  shall  cease to exist at the
Effective Time, and no consideration shall be delivered in exchange therefor;



                                       2.
<PAGE>

                  (iii)  each share of the  common  stock,  $0.001 par value per
share,  of Merger  Sub then  outstanding  shall be  converted  into one share of
common stock of the Surviving Corporation;

                  (iv) except as  provided  in clauses  "(i)" and "(ii)" of this
Section l.5(a), each share of Company Common Stock outstanding immediately prior
to the Effective Time shall be converted into the right to receive a fraction of
a share(s) of the common stock (par value  $0.001 per share) of Parent  ("Parent
Common Stock") equal to a fraction (the "Exchange Ratio"):

                       (1) if the Parent  Average Stock price is $19.75 or more,
(x) the  numerator  of which is (i)  $50,000,000  minus  the  dollar  amount  of
Excluded  Expenses  divided by (ii) the Parent  Average  Stock Price and (y) the
denominator of which is the Fully Diluted Number of Company Shares;

                       (2) if the  Parent  Average  Stock  price  is  less  than
$19.75,  (x) the  numerator  of which is 2,531,645  minus the Excluded  Expenses
(expressed  on an as  converted  to Parent  Common  Stock basis using the Parent
Average  Stock Price as the measure for the per share value of the Parent Common
Stock) and (y) the  denominator  of which is the Fully Diluted Number of Company
Shares.

              (b) The  numerator of the fraction  used to calculate the Exchange
Ratio,  in  accordance  with this  Agreement  but prior to the  deduction of any
Excluded  Expenses,  is hereinafter  referred to as the "Aggregate  Parent Share
Number."

              (c) If, between the date of this Agreement and the Effective Time,
the  outstanding  shares of  Company  Common  Stock or Parent  Common  Stock are
changed into a different number or class of shares by reason of any stock split,
division  or  subdivision  of  shares,  stock  dividend,  reverse  stock  split,
consolidation  of shares,  reclassification,  recapitalization  or other similar
transaction  (a  "Recapitalization  Event"),  then the  Exchange  Ratio shall be
appropriately  adjusted  to reflect  fully the  effect of such  Recapitalization
Event.

              (d) If any shares of Company Common Stock outstanding  immediately
prior to the Effective Time are unvested or are subject to a repurchase  option,
risk of forfeiture or other  condition  under any  applicable  restricted  stock
purchase  agreement  or other  agreement  with the  Company,  then the shares of
Parent  Common Stock issued in exchange for such shares of Company  Common Stock
will  also be  unvested  and  subject  to the same  repurchase  option,  risk of
forfeiture or other condition, and the certificates  representing such shares of
Parent Common Stock may accordingly be marked with appropriate legends.

              (e) The Company will have no shares of Preferred Stock outstanding
immediately prior to the Effective Time.




                                       3.
<PAGE>

         1.6 STOCK OPTIONS.

              (a)  At the  Effective  Time,  each  stock  option  that  is  then
outstanding,  whether vested or unvested (a "Company Option"),  shall be assumed
by Parent in accordance  with the terms (as in effect as of the Effective  Time)
of the  Company's  1996 Stock Option Plan,  the stock  option  agreement  and/or
warrant  agreement by which such Company  Option is  evidenced.  All rights with
respect  to  Company  Common  Stock  under  outstanding  Company  Options  shall
thereupon  be  converted  into  rights  with  respect  to Parent  Common  Stock.
Accordingly,  from and after the Effective Time, (a) each Company Option assumed
by Parent may be exercised  solely for shares of Parent  Common  Stock,  (b) the
number of shares of Parent  Common Stock  subject to each such  assumed  Company
Option shall be equal to the number of shares of Company  Common Stock that were
subject  to  such  Company  Option  immediately  prior  to  the  Effective  Time
multiplied  by the Exchange  Ratio,  rounded down to the nearest whole number of
shares of Parent Common Stock,  (c) the per share  exercise price for the Parent
Common Stock issuable upon exercise of each such assumed Company Option shall be
determined  by dividing  the  exercise  price per share of Company  Common Stock
subject to such Company Option, as in effect  immediately prior to the Effective
Time, by the Exchange Ratio, and rounding the resulting exercise price up to the
nearest  whole  cent,  and (d) all  restrictions  on the  exercise  of each such
assumed  Company Option shall  continue in full force and effect,  and the term,
exercisability,  vesting  schedule and other  provisions of such Company  Option
shall otherwise  remain  unchanged;  provided,  however,  that each such assumed
Company  Option  shall,  in  accordance  with its  terms,  be subject to further
adjustment  as  appropriate  to reflect  any  Recapitalization  Event  after the
Effective  Time.  The  Company  and Parent  shall  take all  action  that may be
necessary  (under  the  Company's  1996  Stock  Option  Plan and  otherwise)  to
effectuate  the  provisions of this Section 1.6.  Following the Closing,  Parent
will send to each holder of an assumed  Company  Option a written notice setting
forth (i) the number of shares of Parent  Common  Stock  subject to such assumed
Company  Option,  and (ii) the exercise  price per share of Parent  Common Stock
issuable upon exercise of such assumed  Company  Option.  Parent shall file with
the SEC,  within  thirty  (30)  days  after the  Closing  Date,  a  registration
statement on Form S-8  registering  shares of Parent Common Stock  issuable upon
the exercise of the Company  Options  assumed by Parent pursuant to this Section
1.6, provided such Company Options are registrable on Form S-8.

              (b) It is the  intention of the parties  that the Company  Options
assumed by Parent  qualify  following  the  Effective  Time as  incentive  stock
options as defined in Section 422 of the Code to the extent such Company Options
qualified as incentive  stock options  prior to the  Effective  Time. As soon as
practicable  after the  Effective  Time,  Parent  will issue to each person who,
immediately  prior to the Effective  Time was a holder of a Company Option under
the  Company's  1996  Stock  Option  Plan,  a written  document  evidencing  the
foregoing assumption of such option by Parent.

         1.7 CLOSING OF THE COMPANY'S  TRANSFER BOOKS. At the Effective Time (a)
all  shares  of  Company  Common  Stock  outstanding  immediately  prior  to the
Effective  Time shall  automatically  be canceled and retired and shall cease to
exist,  and all holders of  certificates  representing  shares of the  Company's
capital stock that were  outstanding  immediately  prior to the  Effective  Time
shall cease to have any rights as shareholders of the Company, and (b) the stock
transfer books of the Company shall be closed with respect to all shares of such
capital




                                       4.
<PAGE>

stock  outstanding  immediately prior to the Effective Time. No further transfer
of any such shares of the  Company's  capital  stock shall be made on such stock
transfer books after the Effective  Time. If, after the Effective  Time, a valid
certificate previously  representing any of such shares of the Company's capital
stock (a "Company  Stock  Certificate")  is presented to the Exchange  Agent (as
defined in Section 1.9) or to the Surviving  Corporation or Parent, such Company
Stock  Certificate  shall be  canceled  and shall be  exchanged  as  provided in
Section 1.9

         1.8 ESCROW

              (a) The  aggregate  number of  shares to be placed in escrow  (the
"Escrow  Shares")  as  collateral  for the  indemnification  obligations  of the
Company pursuant to Section 9 of this Agreement shall be equal to the product of
(x) .187 and (y) the Aggregate  Parent Share Number.  The Escrow Shares shall be
withheld  pro rata from the number of whole  shares of Parent  Common Stock that
each Company  shareholder has the right to receive pursuant to the provisions of
Section 1.5.

              (b) The number of Escrow  Shares to be withheld  from each Company
shareholder shall equal the product of (x) the fraction,  the numerator of which
is (i) the number of whole shares of Parent  Common Stock that such  shareholder
has the right to receive pursuant to the provisions of Section 1.5, and (ii) the
denominator of which is the Aggregate  Parent Share Number,  minus the number of
shares deducted for Excluded  Expenses,  minus the number of shares reserved for
issuance upon  exercise of the assumed  Company  Options,  and (y) the aggregate
number of Escrow Shares.

         1.9 EXCHANGE OF CERTIFICATES.

              (a) American Stock  Transfer & Trust or such other  reputable bank
or trust  company  selected  by Parent  prior to the  Closing  Date shall act as
exchange  agent  in the  Merger  (the  "Exchange  Agent").  Promptly  after  the
Effective  Time,  Parent  shall  deposit with the  Exchange  Agent  certificates
representing the shares of Parent Common Stock issuable pursuant to this Section
1. The shares of Parent  Common  Stock so  deposited  with the  Exchange  Agent,
together with any dividends or distributions received by the Exchange Agent with
respect to such shares, are referred to collectively as the "Exchange Fund."

              (b) At or as soon as  practicable  after the Effective  Time,  the
Exchange  Agent will send to the  holders of Company  Stock  Certificates  (i) a
letter of transmittal in customary form and containing such provisions as Parent
may  reasonably  specify  (including  a provision  confirming  that  delivery of
Company  Stock  Certificates  shall be  effected,  and risk of loss and title to
Company Stock  Certificates shall pass, only upon delivery of such Company Stock
Certificates to the Exchange Agent),  and (ii) instructions for use in effecting
the  surrender  of Company  Stock  Certificates  in  exchange  for  certificates
representing  Parent Common Stock. Upon surrender of a Company Stock Certificate
to the Exchange  Agent for exchange,  together  with a duly  executed  letter of
transmittal  and such  other  documents  as may be  reasonably  required  by the
Exchange Agent or Parent,  the holder of such Company Stock Certificate shall be
entitled to receive in exchange  therefor a certificate  representing the number
of whole shares of Parent Common Stock that such holder has the right to receive
pursuant to the provisions of this Section 1, and the Company Stock  Certificate
so surrendered  shall be canceled.  As soon as




                                       5.
<PAGE>

practicable after receipt by the Exchange Agent of the applicable  Company Stock
Certificate, the duly executed letter of transmittal and such other documents as
may be reasonably  required by the Exchange Agent or Parent,  the Exchange Agent
shall deliver to each former Company Shareholder a certificate  representing the
number of whole  shares of Parent  Common  Stock that such  shareholder  has the
right to receive  pursuant to the  provisions  of Section 1.5 less the number of
shares to be  delivered  to the escrow  agent  (determined  in  accordance  with
Section  1.8(b)  above) and (ii)  deliver to the escrow  agent  pursuant  to the
Escrow  Agreement  (as  defined  below),  on  behalf  and in the  name  of  each
shareholder,  a certificate representing such shareholder's  proportionate share
of the Escrow Shares.  Until surrendered as contemplated by this Section 1.9(b),
each Company  Stock  Certificate  shall be deemed,  from and after the Effective
Time, to represent  only the right to receive upon such  surrender a certificate
representing shares of Parent Common Stock as contemplated by this Section 1 and
as adjusted to reflect any claims made against the Escrow Shares. If any Company
Stock Certificate shall have been lost, stolen or destroyed,  Parent may, in its
discretion  and as a condition  precedent  to the  issuance  of any  certificate
representing  Parent  Common  Stock,  require the owner of such lost,  stolen or
destroyed Company Stock Certificate to provide an appropriate  affidavit against
any claim that may be made against the Exchange  Agent,  Parent or the Surviving
Corporation with respect to such Company Stock Certificate.

              (c) No  dividends  or other  distributions  declared  or made with
respect to Parent Common Stock with a record date after the Effective Time shall
be paid to the  holder  of any  unsurrendered  Company  Stock  Certificate  with
respect to the shares of Parent  Common  Stock  represented  thereby  until such
holder surrenders such Company Stock Certificate in accordance with this Section
1.9 (at which time such holder  shall be entitled to receive all such  dividends
and distributions).

              (d) No fractional shares of Parent Common Stock shall be issued in
connection  with the  Merger,  and no cash,  certificates  or scrip for any such
fractional  shares  shall be  issued.  In lieu  thereof,  the  number  of shares
otherwise  issued or  issuable  to any  holder of capital  stock of the  Company
(after aggregating all fractional shares of Parent Common Stock issuable to such
holder) shall, upon surrender of such holder's Company Stock Certificate(s),  be
rounded to the nearest whole share of Parent Common Stock,  with one-half  share
or more being rounded up.

              (e) Parent and the  Surviving  Corporation  shall be  entitled  to
deduct and withhold from any consideration  payable or otherwise  deliverable to
any holder or former  holder of capital  stock of the  Company  pursuant to this
Agreement  such  amounts  as  the  Exchange  Agent,   Parent  or  the  Surviving
Corporation  may be required to deduct or withhold  therefrom  under the Code or
under any  provision  of state,  local or foreign  tax law.  To the extent  such
amounts are so  deducted  or  withheld,  such  amounts  shall be treated for all
purposes  under this  Agreement  as having  been paid to the Person to whom such
amounts would otherwise have been paid.

              (f) Neither Parent nor the Surviving  Corporation  shall be liable
to any holder or former holder of capital stock of the Company for any shares of
Parent  Common  Stock (or  dividends  or  distributions  with  respect  thereto)
delivered to any public official pursuant to any applicable  abandoned property,
escheat or similar law.



                                       6.
<PAGE>

         1.10 DISSENTING SHARES.

              (a)  Notwithstanding  anything to the  contrary  contained in this
Agreement,  any shares of capital stock of the Company that, as of the Effective
Time, are or may become  "dissenting  shares" within the meaning of Section 1300
of the California Corporations Code shall not be converted into or represent the
right to receive  Parent  Common Stock in  accordance  with Section 1.5, and the
holder or holders of such shares shall be entitled only to such rights as may be
granted to such holder or holders  pursuant to  California  General  Corporation
Law;  provided,  however,  that if the status of any such shares as  "dissenting
shares" shall not be perfected, or if any such shares shall lose their status as
"dissenting  shares," then, as of the later of the Effective Time or the time of
the failure to perfect  such status or the loss of such status such shares shall
automatically  be converted  into and shall  represent only the right to receive
(upon the surrender of the certificate or certificates representing such shares)
Parent Common Stock in accordance with Section 1.5.

              (b) The Company shall give Parent (i) prompt notice of any written
demand  received  by the  Company  prior to the  Effective  Time to require  the
Company to  purchase  shares of capital  stock of the  Company  pursuant  to the
California General Corporation Law and of any other demand, notice or instrument
delivered to the Company prior to the Effective  Time pursuant to the California
General  Corporation  Law,  and  (ii)  the  opportunity  to  participate  in all
negotiations  and  proceedings  with  respect  to any  such  demand,  notice  or
instrument.  The Company shall not make any payment or settlement offer prior to
the  Effective  Time with  respect to any such demand  unless  Parent shall have
consented in writing to such payment or settlement offer.

         1.11 WORKING CAPITAL ADJUSTMENT.

              (a) On or  within  one  day  after  the  Closing  Date,  personnel
assigned by each of the Company and Parent shall  jointly  inspect all Inventory
of the Company and prepare a physical count of the Closing Inventory.

              (b) As soon as  practicable  following the Closing  Date,  but not
later than 60 days  thereafter,  Parent shall determine the actual amount of the
Working  Capital (as defined  below) as of the Closing Date and shall deliver to
the  Securityholders'  Agent (as  defined in Section  10.1) a  certificate  (the
"Working  Capital  Certificate")  setting  forth the final dollar  amount of the
Working Capital and shall make available to the Securityholders'  Agent the work
papers used in the preparation  thereof.  If the  Securityholders'  Agent agrees
with Parent's  determination  of Working Capital and if the dollar amount of the
Working  Capital as reflected on the Working  Capital  Certificate  is less than
negative $200,000,  then the  Securityholders'  Agent shall authorize the escrow
agent to issue to  Parent a  sufficient  amount  of  Escrow  Shares to cover the
difference  between negative $200,000 and the final dollar amount of the Working
Capital  set forth on the Working  Capital  Certificate.  The Escrow  Shares for
purposes of this Section 1.11 shall be valued at the Parent Average Stock Price.
Any payment to be made under this Section 1.11 shall be made,  without  interest
thereon,  within five business days after final  determination  of the amount of
the Working Capital as of the Closing Date.





                                       7.
<PAGE>

              (c) For purposes of this  Agreement,  "Working  Capital" as of any
date shall be deemed to be the aggregate  dollar value  determined in accordance
with GAAP  represented  by:  (i) cash,  (ii) cash  equivalents,  (iii)  Accounts
Receivable  (net of an allowance for bad debts  determined  in  accordance  with
GAAP), (iv) Inventory and (v) Prepaid Expenses,  less (x) Payables,  (y) Accrued
Expenses  and (z) all other  current  liabilities.  The  calculation  of Working
Capital shall  exclude (i) the proceeds of the exercise of any Company  warrants
since April 1, 1999 and (ii) any transaction expenses incurred by the Company in
connection with the transactions contemplated hereby

              (d) In the event the Parent and the Securityholders' Agent fail to
reach written agreement,  within 90 days after the Closing Date, with respect to
the  determination  of the amount of the Working Capital as of the Closing Date,
then the Parent and the  Securityholders'  Agent shall (i) retain as  arbitrator
Arthur Andersen LLP or, failing their agreement to act as arbitrator, such other
independent accounting firm as may be mutually agreed upon by the Parent and the
Securityholders'  Agent to review such matters as to which written agreement has
not  been  reached  and (ii)  request  such  arbitrator  to act as  promptly  as
practicable  in  accordance  with its own  rules to  resolve  all such  disputed
matters   within  30  days  after   being   retained   by  the  Parent  and  the
Securityholders'  Agent.  Upon resolution by such arbitrator to its satisfaction
of all such disputed  matters,  such  arbitrator  shall cause to be prepared and
shall deliver to the Parent and the Securityholders' Agent a certificate setting
forth the amount of Working Capital as of the Closing Date. The decision of such
arbitrator  shall be final,  non-appealable  and  binding  on the Parent and the
Securityholders'  Agent,  and the fees and expenses,  if any, of such arbitrator
shall be paid  one-half by Parent and  one-half by the  Securityholders'  Agent;
provided,  however,  that the  Securityholders'  Agent  shall  have the right to
recover from the Escrow Fund for any fees and expenses of such arbitration.

         1.12 INVESTMENT  BANKING FEE. Upon the Closing,  the Parent shall issue
to William Blair & Company LLC ("William Blair & Company"), in full satisfaction
of certain fee and expense  obligations of the Company (except for reimbursement
of certain  expenses  totaling less than $25,000),  a number of shares of Parent
Common Stock equal to $750,000  divided by the Parent Average Stock Price.  Such
shares shall be included in the S-3  registration  statement  referred to in the
Registration  Rights  Agreement  attached  hereto as  Exhibit  F.  Such  shares,
however, shall not be considered Resale Restricted Stock.

         1.13 TAX CONSEQUENCES.  For federal income tax purposes,  the Merger is
intended to constitute a reorganization within the meaning of Section 368 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.  Parent and the Company shall each use its
commercially  reasonable  efforts  to  cause  the  Merger  to  be  treated  as a
reorganization  within the meaning of Section 368(a) of the Code. From and after
the Effective Time,  neither  Parent,  Merger Sub nor the Company shall take any
action that could  reasonably  be expected to cause the Merger not to be treated
as a  reorganization  within the meaning of Section 368(a) of the Code.  Company
and Parent agree to file their federal and  applicable  state income tax returns
consistent with the treatment of the Merger as a reorganization.

         1.14  ACCOUNTING  TREATMENT.  For  accounting  purposes,  the Merger is
intended to be treated as a "purchase."





                                       8.
<PAGE>

         1.15 FURTHER  ACTION.  If, at any time after the  Effective  Time,  any
further action is determined by Parent to be necessary or desirable to carry out
the purposes of this  Agreement or to vest the Surviving  Corporation  or Parent
with full  right,  title and  possession  of and to all rights and  property  of
Merger  Sub and  the  Company,  the  officers  and  directors  of the  Surviving
Corporation and Parent shall be fully  authorized (in the name of Merger Sub, in
the name of the Company and otherwise) to take such action.

2.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         Except  as  disclosed  in a  document  dated  as of the  date  of  this
Agreement and delivered by Company to Parent prior to the execution and delivery
of this  Agreement and referring to the  representations  and warranties in this
Agreement  (the  "Company  Disclosure  Schedule"),  the Company  represents  and
warrants, to and for the benefit of the Indemnitees, as follows;

         2.1 DUE ORGANIZATION; NO SUBSIDIARIES; ETC.

              (a) The Company is a corporation duly organized,  validly existing
and in good  standing  under  the laws of the  State of  California  and has all
necessary  power and  authority:  (i) to conduct  its  business in the manner in
which its business is currently being conducted;  (ii) to own and use its assets
in the  manner in which its assets are  currently  owned and used;  and (iii) to
perform its obligations  under all Company Contracts except where the failure to
have such power and authority  would not have a Material  Adverse  Effect on the
Company.

              (b)  Except as set forth in Part 2.1 of the  Disclosure  Schedule,
the Company has not  conducted  any business  under or otherwise  used,  for any
purpose or in any jurisdiction, any fictitious name, assumed name, trade name or
other name, other than the name "Decisive Technology Corporation"

              (c) The Company is not and has not been  required to be qualified,
authorized,  registered or licensed to do business as a foreign  corporation  in
any  jurisdiction  other than the  jurisdictions  identified  in Part 2.1 of the
Disclosure  Schedule,  except where the failure to be so qualified,  authorized,
registered or licensed has not had and could not  reasonably be expected to have
a Material  Adverse Effect on the Company.  The Company is in good standing as a
foreign  corporation in each of the jurisdictions  identified in Part 2.1 of the
Disclosure Schedule.

              (d) Part 2.1 of the Disclosure  Schedule accurately sets forth (i)
the names of the members of the Company's board of directors,  (ii) the names of
the members of each committee of the Company's board of directors, and (iii) the
names and titles of the Company's officers.

              (e) The  Company  does  not own any  controlling  interest  in any
Entity  and,  except  for the  equity  interests  identified  in Part 2.1 of the
Disclosure Schedule, the Company has never owned, beneficially or otherwise, any
shares or other securities of, or any direct or indirect equity interest in, any
Entity.  The  Company  has not  agreed and is not  obligated  to make any future
investment  in or  capital  contribution  to any  Entity.  The  Company  has not
guaranteed  and




                                       9.
<PAGE>

is not  responsible or liable for any obligation of any of the Entities in which
it owns or has owned any equity interest.

         2.2  ARTICLES OF  INCORPORATION  AND BYLAWS;  RECORDS.  The Company has
delivered to Parent accurate and complete copies of: (1) the Company's  Articles
of Incorporation  and bylaws,  including all amendments  thereto;  (2) the stock
records  of the  Company;  and  (3)  except  as set  forth  in  Part  2.2 of the
Disclosure  Schedule,  the minutes and other  records of the  meetings and other
proceedings (including any actions taken by written consent or otherwise without
a meeting) of the  shareholders  of the  Company,  the board of directors of the
Company and all committees of the board of directors of the Company.  There have
been no formal meetings or other proceedings of the shareholders of the Company,
the board of directors of the Company or any committee of the board of directors
of the Company that are not fully  reflected  in such minutes or other  records.
There  has not been any  violation  of any of the  provisions  of the  Company's
Articles of  Incorporation  or bylaws,  and the Company has not taken any action
that is inconsistent in any material respect with any resolution  adopted by the
Company's shareholders, the Company's board of directors or any committee of the
Company's  board of  directors.  The books of  account,  stock and stock  option
records, minute books and other records of the Company are accurate,  up-to-date
and complete in all material  respects,  and have been  maintained in accordance
with prudent business practices.

         2.3 CAPITALIZATION, ETC.

              (a) The authorized  capital stock of the Company  consists of: (i)
38,000,000  shares of Common Stock ($0.001 par value), of which 1,839,174 shares
have been issued and are outstanding as of the date of this Agreement;  and (ii)
25,000,000  shares of Preferred Stock ($0.01 par value),  of which (x) 1,000,000
shares have been  designated  Series A Preferred  Stock,  1,000,000 of which are
issued  and are  outstanding  as of the date of this  Agreement  (the  "Series A
Preferred"), (y) 3,000,000 shares have been designated Series B Preferred Stock,
2,002,750  of  which  are  issued  and are  outstanding  as of the  date of this
Agreement  (the  "Series B  Preferred"),  and (z)  21,000,000  shares  have been
designated  Series C  Preferred  Stock,  19,462,810  of which are issued and are
outstanding as of the date of this Agreement (the "Series C Preferred").  All of
the outstanding  shares of the Company's capital stock have been duly authorized
and  validly  issued,  and are fully  paid and  non-assessable.  Part 2.3 of the
Disclosure  Schedule provides an accurate and complete  description of the terms
of each  repurchase  option that is held by the Company and to which any of such
shares is subject. Upon the filing of the Charter Amendment immediately prior to
the Effective Time, all outstanding shares of the Company's Preferred Stock will
be converted into shares of Common Stock.

              (b) The Company has reserved  10,470,267  shares of Company Common
Stock for  issuance  under its 1996  Stock  Option  Plan,  of which  options  to
purchase 7,242,933 shares are outstanding as of the date of this Agreement.  The
Company has no  outstanding  warrants to purchase  capital stock of the Company.
Part 2.3 of the Disclosure  Schedule accurately sets forth, with respect to each
Company Option and warrant that is outstanding as of the date of this Agreement:
(i) the name and  mailing  address  of the  holder  of such  Company  Option  or
warrant;  (ii) the  total  number of shares of  Company  Common  Stock  that are
subject to such  Company  Option or warrant  and the number of shares of Company
Common Stock with respect to which such Company Option or warrant is immediately
exercisable;  (iii) the date on




                                      10.
<PAGE>

which such  Company  Option or warrant was granted and the term of such  Company
Option or warrant; (iv) the vesting schedule for such Company Option or warrant;
(v) the exercise price per share of Company Common Stock  purchasable under such
Company  Option or  warrant;  and (vi)  whether  such  Company  Option  has been
designated  an  "incentive  stock option" as defined in Section 422 of the Code.
Except as set forth in Part 2.3 of the  Disclosure  Schedule,  there is no:  (i)
outstanding  subscription,  option,  call,  warrant  or  right  (whether  or not
currently  exercisable)  to  acquire  any shares of the  capital  stock or other
securities of the Company; (ii) outstanding  security,  instrument or obligation
that is or may become  convertible  into or  exchangeable  for any shares of the
capital stock or other securities of the Company; (iii) Contract under which the
Company is or may become  obligated to sell or otherwise issue any shares of its
capital stock or any other  securities;  or (iv) to the best of the knowledge of
the Company,  condition or circumstance that may 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 the Company.

              (c) All  outstanding  shares of Company Common Stock and Preferred
Stock,  and all outstanding  Company Options and warrants,  have been issued and
granted  in  compliance  with  (i) all  applicable  securities  laws  and  other
applicable Legal Requirements, and (ii) all requirements set forth in applicable
Contracts.

              (d)  Except as set forth in Part 2.3 of the  Disclosure  Schedule,
the Company has never repurchased,  redeemed or otherwise  reacquired any shares
of  capital  stock  or  other  securities  of the  Company.  All  securities  so
reacquired by the Company were  reacquired in compliance with (i) the applicable
provisions of the California  Corporations  Code and all other  applicable Legal
Requirements,  and (ii) all requirements set forth in the agreements pursuant to
which such securities were issued.

         2.4 FINANCIAL STATEMENTS.

              (a) The Company has  delivered to Parent the  following  financial
statements and notes (collectively, the "Company Financial Statements"):

                  (i) The balance sheets of the Company as of December 31, 1998,
1997  and  1996,  and the  related  audited  income  statements,  statements  of
shareholders'  equity and  statements of cash flows of the Company for the years
then ended, together with the notes thereto; and

                  (ii) The  unaudited  balance  sheet of the Company as of March
31, 1999 (the "Unaudited  Interim  Balance  Sheet"),  and the related  unaudited
income statement of the Company for the three (3) months then ended.

              (b) The Company Financial  Statements are accurate and complete in
all material  respects and present fairly the financial  position of the Company
as of the  respective  dates thereof and the results of  operations  and (in the
case of the financial statements referred to in Section 2.4(a)(i)) cash flows of
the Company for the periods covered thereby.  The Company  Financial  Statements
have been prepared in accordance with generally accepted  accounting  principles
applied on a consistent  basis  throughout the periods  covered (except that the
financial  statements referred to in Section 2.4(a)(ii) do not contain footnotes
and are subject to normal and




                                      11.
<PAGE>

recurring year-end audit adjustments,  which could not reasonably,  individually
or in the  aggregate,  be expected to be  material  in  magnitude).  The Company
Financial  Statements  referred to in Section  2.4(a)(i)  shall be  identical to
those statements on which  PricewaterhouseCoopers  LLP will issue an unqualified
report and opinion after the date hereof.

         2.5  ABSENCE  OF  CHANGES.  Except  as set  forth  in  Part  2.5 of the
Disclosure Schedule, since March 31, 1999:

              (a)  there  has  not  been  any  material  adverse  change  in the
Company's business, condition, capitalization,  assets, liabilities, operations,
financial performance or prospects, and no event has occurred that has, or could
reasonably be expected to, have a Material Adverse Effect on the Company;

              (b) there has not been any material  loss,  damage or  destruction
to, or any  material  interruption  in the use of, any of the  Company's  assets
(whether or not covered by insurance);

              (c) the Company has not declared,  accrued,  set aside or paid any
dividend  or made any other  distribution  in  respect  of any shares of capital
stock, and has not repurchased,  redeemed or otherwise  reacquired any shares of
capital stock or other  securities  except for  repurchases of stock pursuant to
the terms of restricted stock purchase agreements under the Company's 1996 Stock
Option Plan;

              (d) the Company has not sold,  issued,  granted or authorized  the
issuance of (i) any capital stock or other  security  (except for Company Common
Stock  issued  upon  the  valid  exercise  of  outstanding  Company  Options  in
accordance with the terms of the option agreement pursuant to which such Company
Options are outstanding),  (ii) any option or right to acquire any capital stock
or any other security  (except for Company Options  described in Part 2.3 of the
Disclosure Schedule),  or (iii) any instrument  convertible into or exchangeable
for any capital stock or other security;

              (e) the Company has not amended or waived any of its rights under,
or permitted the  acceleration  of vesting under,  (i) any provision of its 1996
Stock  Option  Plan,  (ii)  any  provision  of  any  agreement   evidencing  any
outstanding Company Option, or (iii) any restricted stock purchase agreement;

              (f) there  has been no  amendment  to the  Company's  Articles  of
Incorporation or bylaws, and the Company has not effected or been a party to any
Acquisition  Transaction,  recapitalization,  reclassification of shares,  stock
split, division or subdivision of shares, reverse stock split,  consolidation of
shares or similar transaction;

              (g) the Company  has not formed any  subsidiary  or  acquired  any
equity interest or other interest in any other Entity;

              (h) since  March 31,  1999 the  Company  has not made any  capital
expenditure that exceeds $5,000  individually or $25,000 when added to all other
capital expenditures made on behalf of the Company since March 31, 1999;





                                      12.
<PAGE>

              (i) the Company has not (i) entered into or  permitted  any of the
assets owned or used by it to become  bound by any  Contract  that is a Material
Contract  (as  defined  in Section  2.10(a)),  or (ii)  amended  or  prematurely
terminated,  or waived any material  right or remedy  under,  any such  Material
Contract;

              (j) the Company has not (i) acquired, leased or licensed any right
or other asset from any other  Person,  (ii) sold or  otherwise  disposed of, or
leased or  licensed,  any right or other  asset to any  other  Person,  or (iii)
waived  or  relinquished  any  right,  except  for  immaterial  rights  or other
immaterial  assets  acquired,  leased,  licensed or disposed of in the  ordinary
course of business and consistent with the Company's past practices;

              (k)  the  Company  has  not  written  off  as  uncollectible,   or
established  any  extraordinary  reserve with  respect to, any material  account
receivable or other indebtedness;

              (l) the  Company  has not made any  pledge of any of its assets or
otherwise  permitted  any of its assets to become  subject  to any  Encumbrance,
except for pledges of immaterial  assets made in the ordinary course of business
and consistent with the Company's past practices;

              (m) the  Company  has not (i) lent  money to any  Person,  or (ii)
incurred or guaranteed any  indebtedness for borrowed money except for travel or
similar  advances  made to employees or  consultants  in  connection  with their
employment or  consulting  duties in the ordinary  course of business,  which is
consistent  with past  practices and trade  payables not in excess of $10,000 in
the  aggregate  and in the  ordinary  course of business,  consistent  with past
practices;

              (n) the Company has not (i)  established  or adopted any  employee
benefit plan, (ii) 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, or (iii) hired any new employee;

              (o) the Company  has not changed any of its methods of  accounting
or accounting practices in any respect;

              (p) the Company has not made any Tax election;

              (q) the  Company has not  commenced,  become a party to or settled
any Legal Proceeding;

              (r) the Company has not entered into any material  transaction  or
taken any other  material  action  outside  the  ordinary  course of business or
inconsistent with its past practices; and

              (s) the  Company  has not agreed or  committed  to take any of the
actions referred to in clauses "(c)" through "(r)" above.





                                      13.
<PAGE>

         2.6 TITLE TO ASSETS.

              (a) The Company owns, and has good, valid and marketable title to,
all assets purported to be owned by it,  including:  (i) all assets reflected on
the Unaudited  Interim Balance Sheet;  (ii) all assets referred to in Parts 2.1,
2.7 and 2.9 of the Disclosure Schedule and all of the Company's rights under the
Contracts  identified in Part 2.10 of the Disclosure  Schedule;  (iii) all other
assets  reflected  in the  Company's  books and  records  as being  owned by the
Company; and (iv) all assets, intangible or otherwise,  necessary to conduct and
continue the Company's current  business.  Except as set forth in Part 2.6(a) of
the  Disclosure  Schedule,  all of said assets are owned by the Company free and
clear of any liens or other  Encumbrances,  except for (x) any lien for  current
taxes not yet due and  payable,  and (y)  minor  liens  that have  arisen in the
ordinary  course of business  and that do not (in any case or in the  aggregate)
materially  detract from the value of the assets  subject  thereto or materially
impair the operations of the Company.

              (b) Part 2.6 of the Disclosure Schedule identifies all assets that
are  material  to the  business  of the  Company  and that are  being  leased or
licensed to the Company.

         2.7 BANK ACCOUNTS; RECEIVABLES.

              (a) Part  2.7(a)  of the  Disclosure  Schedule  provides  accurate
information,  including bank name,  bank contact  information,  account  number,
authorized  signatories and most recent available balance,  with respect to each
account  maintained  by or for the  benefit of the  Company at any bank or other
financial institution.

              (b) Part 2.7(b) of the  Disclosure  Schedule  provides an accurate
and complete  breakdown and aging of all accounts  receivable,  notes receivable
and other  receivables of the Company as of March 31, 1999.  Except as set forth
in Part 2.7(b) of the Disclosure  Schedule,  all existing accounts receivable of
the Company  (including  those  accounts  receivable  reflected on the Unaudited
Interim  Balance  Sheet  that have not yet been  collected  and  those  accounts
receivable  that  have  arisen  since  March  31,  1999  and  have  not yet been
collected) (i) represent  valid  obligations of customers of the Company arising
from bona fide transactions entered into in the ordinary course of business, and
(ii) are current and are  reasonably  expected by the Company to be collected in
full when due,  without any  counterclaim  or set off (net of an  allowance  for
doubtful accounts and sales returns not to exceed $25,000 in the aggregate).

         2.8 EQUIPMENT; LEASEHOLD.

              (a) All material  items of  equipment  and other  tangible  assets
owned by or leased to the  Company are  adequate  for the uses to which they are
being put, are in good  condition and repair  (ordinary  wear and tear excepted)
and are  adequate  for the  conduct of the  Company's  business in the manner in
which such business is currently being conducted.

              (b) The Company does not own any real  property or any interest in
real  property,  except for the leasehold  created under the real property lease
identified in Part 2.10 of the Disclosure Schedule.






                                      14.
<PAGE>

         2.9 PROPRIETARY ASSETS.

              (a) Part  2.9(a)(i) of the  Disclosure  Schedule sets forth,  with
respect to each Company  Proprietary Asset registered with any Governmental Body
or for which an  application  has been filed with any  Governmental  Body, (i) a
brief  description  of  such  Proprietary  Asset,  and  (ii)  the  names  of the
jurisdictions  covered  by  the  applicable  registration  or  application  part
2.9(a)(ii)  of  the  Disclosure   Schedule   identifies  and  provides  a  brief
description of all other Company  Proprietary Assets owned by the Company.  Part
2.9(a)(iii)  of  the  Disclosure   Schedule  identifies  and  provides  a  brief
description  of each  Proprietary  Asset  licensed  to the Company by any Person
(except for any  Proprietary  Asset that is  licensed  to the Company  under any
third party software license generally available to the public at a cost of less
than $10,000), and identifies the license agreement under which such Proprietary
Asset is being licensed to the Company.  Except as set forth in Part  2.9(a)(iv)
of the Disclosure Schedule,  the Company has good, valid and marketable title to
all  of the  Company  Proprietary  Assets  identified  in  Parts  2.9(a)(i)  and
2.9(a)(ii)  of the  Disclosure  Schedule,  free and clear of all liens and other
Encumbrances,  and has a valid right to use all Proprietary Assets identified in
Part  2.9(a)(iii)  of the  Disclosure  Schedule.  Except  as set  forth  in Part
2.9(a)(v) of the Disclosure  Schedule,  the Company is not obligated to make any
payment to any Person for the use of any Company  Proprietary  Asset.  Except as
set forth in Part  2.9(a)(vi) of the  Disclosure  Schedule,  the Company has not
developed  jointly  with any other  Person any  Company  Proprietary  Asset with
respect to which such other Person has any rights.

              (b) The Company has taken all measures and  precautions  necessary
to  protect  and  maintain  the  confidentiality  and  secrecy  of  all  Company
Proprietary  Assets  (except  Company  Proprietary  Assets  whose value would be
unimpaired by public disclosure) and otherwise to maintain and protect the value
of all  Company  Proprietary  Assets.  Except as set forth in Part 2.9(b) of the
Disclosure  Schedule,  the  Company  has not  (other  than  pursuant  to license
agreements  identified  in Part 2.10 of the  Disclosure  Schedule)  disclosed or
delivered to any Person,  or permitted the  disclosure or delivery to any Person
of, (i) the source  code,  or any portion or aspect of the source  code,  of any
Company  Proprietary Asset, or (ii) the object code, or any portion or aspect of
the object code, of any Company Proprietary Asset.

              (c) None of the Company  Proprietary Assets infringes or conflicts
with any Proprietary Asset owned or used by any other Person. The Company is not
infringing,  misappropriating or making any unlawful use of, and the Company has
not at any time  infringed,  misappropriated  or made any  unlawful  use of,  or
received  any notice or other  communication  (in writing or  otherwise)  of any
actual,  alleged,  possible  or  potential  infringement,   misappropriation  or
unlawful use of, any Proprietary Asset owned or used by any other Person. To the
best  of  the  knowledge  of  the  Company,   no  other  Person  is  infringing,
misappropriating  or making any unlawful use of, and no Proprietary  Asset owned
or used by any other Person infringes or conflicts with, any Company Proprietary
Asset.

              (d) Except as set forth in Part 2.9(d) of the Disclosure Schedule:
(i) each Company  Proprietary  Asset conforms in all material  respects with any
specification,  documentation, performance standard, representation or statement
made or provided with respect  thereto by or on behalf of the Company;  and (ii)
there has not been any claim by any customer or other Person  alleging  that any
Company  Proprietary  Asset  (including  each version thereof that




                                      15.
<PAGE>

has ever been licensed or otherwise made available by the Company to any Person)
does not conform in all material respects with any specification, documentation,
performance  standard,  representation  or  statement  made or provided by or on
behalf of the Company,  and, to the best of the knowledge of the Company,  there
is no basis for any such claim. The Company has established adequate reserves on
the  Unaudited  Interim  Balance  Sheet to cover all costs  associated  with any
obligations  that the Company may have with respect to the  correction or repair
of programming errors or other defects in the Company Proprietary Assets.

              (e) The Company  Proprietary Assets constitute all the Proprietary
Assets  necessary to enable the Company to conduct its business in the manner in
which such business has been and is being conducted. Except as set forth in Part
2.9(e) of the Disclosure  Schedule,  (i) the Company has not licensed any of the
Company  Proprietary  Assets to any Person on an exclusive  basis,  and (ii) the
Company has not entered into any  covenant  not to compete or Contract  limiting
its  ability  to  exploit  fully any of its  Proprietary  Assets or to  transact
business in any market or geographical area or with any Person.

              (f) Except as set forth in Part 2.9(f) of the Disclosure Schedule,
(i) all current and former  employees of the Company have executed and delivered
to the Company an agreement  (containing no exceptions to or exclusions from the
scope of its coverage)  that is  substantially  identical to one of the forms of
Proprietary  Information  Agreement or  Confidential  Information  and Invention
Assignment  Agreement  previously  delivered to Parent, and (ii) all current and
former consultants and independent  contractors to the Company have executed and
delivered to the Company an agreement (containing no exceptions to or exclusions
from the scope of its coverage)  that is  substantially  identical to one of the
forms of  Proprietary  Information  Agreement or  Confidential  Information  and
Invention Assignment Agreement previously delivered to Parent.

              (g)  Except  as set  forth  in Part  2.9(g)(i)  of the  Disclosure
Schedule, each computer, item of computer related hardware, computer program and
other item of software (whether installed on a computer or on any other piece of
equipment,  including  firmware) that is owned,  licensed or used by the Company
for its internal business operations is Year 2000 Compliant. Except as set forth
in Part 2.9(g)(ii) of the Disclosure  Schedule,  each computer program and other
item of software that has been designed,  developed, sold, licensed or otherwise
made  available to any Person by the Company is Year 2000  Compliant.  Except as
set forth in Part  2.9(g)(iii)  of the  Disclosure  Schedule,  the  Company  has
conducted  sufficient  Year 2000 compliance  testing for each computer,  item of
computer related hardware,  computer program and item of software referred to in
the preceding two sentences to be able to determine whether such computer,  item
of computer related hardware, computer program and item of software is Year 2000
Compliant,  and has obtained warranties or other written assurances from each of
its  suppliers to the effect that the  products  and  services  provided by such
suppliers  to the Company is Year 2000  Compliant.  As used in this Section 2.9,
"Year 2000  Compliant"  means,  with  respect to a  computer,  item of  computer
related hardware,  computer program or other item of software (i) the functions,
calculations, and other computing processes of the computer, program or software
(collectively,  "Processes")  perform in a consistent and correct manner without
interruption  regardless  of the  date  on  which  the  Processes  are  actually
performed and  regardless of the date input to the applicable  computer  system,
whether before, on, or after January 1, 2000 (ii) the computer, item of computer
related hardware,  program or software




                                      16.
<PAGE>

accepts,  calculates,   compares,  sorts,  extracts,  sequences,  and  otherwise
processes date inputs and date values,  and returns and displays date values, in
a consistent and correct manner regardless of the dates used whether before, on,
or after January 1, 2000; (iii) the computer, item of computer related hardware,
program or software accepts and responds to year input, if any, in a manner that
resolves  any  ambiguities  as  to  century  in a  defined,  predetermined,  and
appropriate  manner;  (iv) the  computer,  item of  computer  related  hardware,
program  or  software  stores and  displays  date  information  in ways that are
unambiguous as to the  determination of the century;  and (v) leap years will be
determined  by the  following  standard  (A) if dividing the year by 4 yields an
integer, it is a leap year, except for years ending in 00, but (B) a year ending
in 00 is a leap year if dividing it by 400 yields an integer.

              (h) Except  with  respect to  demonstration  or trial  copies,  no
product, system, program or software module designed,  developed, sold, licensed
or  otherwise  made  available  by the Company to any Person  contains any "back
door," "time bomb," "Trojan horse," "worm," "drop dead device," "virus" or other
software routines or hardware  components designed to permit unauthorized access
or to disable or erase  software,  hardware  or data  without the consent of the
user.

         2.10 CONTRACTS.

              (a) Part 2.10 of the Disclosure Schedule identifies:

                  (i) each Company  Contract  relating to the  employment of, or
the  performance of services by, any current or former  employee,  consultant or
independent  contractor  except for any "at will"  employment  relationships  or
agreements  for  performance  of  services  pursuant to which the Company is not
obligated to pay amounts  exceeding  $5,000;  any Contract pursuant to which the
Company is or may become obligated to make any severance, termination or similar
payment to any current or former employee or director; and any Contract pursuant
to which the  Company  is or may become  obligated  to make any bonus or similar
payment  (other  than  payments  in respect of salary) to any  current or former
employee or director;

                  (ii)  each  Company  Contract  relating  to  the  acquisition,
transfer,  use,  development,  sharing  or  license  of  any  technology  or any
Proprietary Asset;

                  (iii) each Company  Contract  imposing any  restriction on the
Company's right or ability (A) to compete with any other Person,  (B) to acquire
any product or other asset or any services  from any other  Person,  to sell any
product or other asset to or perform  any  services  for any other  Person or to
transact  business  or deal in any other  manner with any other  Person,  or (C)
develop or distribute any technology;

                  (iv) each Company  Contract  creating or involving  any agency
relationship, distribution arrangement or franchise relationship;

                  (v)  each  Company  Contract   relating  to  the  acquisition,
issuance or transfer of any securities;






                                      17.
<PAGE>

                  (vi) each  Company  Contract  relating to the  creation of any
material Encumbrance with respect to any asset of the Company;

                  (vii) each Company  Contract  involving or  incorporating  any
guaranty,  any pledge,  any performance or completion bond, any indemnity or any
surety arrangement;

                  (viii)  each  Company  Contract  creating  or  relating to any
partnership or joint venture or any sharing of revenues,  profits, losses, costs
or liabilities;

                  (ix) each Company Contract relating to the purchase or sale of
any product or other asset by or to, or the  performance  of any  services by or
for, any Related Party (as defined in Section 2.18);

                  (x) any other  Company  Contract that was entered into outside
the ordinary  course of business or was  inconsistent  with the  Company's  past
practices;

                  (xi) any other  Company  Contract that has a term of more than
60 days and that may not be terminated by the Company  (without  penalty) within
60 days after the delivery of a termination notice by the Company;

                  (xii) any Contract which provides for  indemnification  of any
officer, director, employee or agent;

                  (xiii)  any  other  Company  Contract  that   contemplates  or
involves (A) the payment or delivery of cash or other consideration in an amount
or having a value in excess of $10,000 in the aggregate,  or (B) the performance
of services having a value in excess of $10,000 in the aggregate;

                  (xiv) any Contract imposing any confidentiality  obligation on
the  Company   except  for   agreements   with   customers   which  provide  for
confidentiality of customer data and analysis conducted by Company for customer;

                  (xv) any Contract (not  otherwise  identified in clauses "(i)"
through  "(xvi)" of this Section  2.10(a)) that could  reasonably be expected to
have a  material  effect on the  business,  condition,  capitalization,  assets,
liabilities, operations, financial performance or prospects of the Company or to
any of the transactions contemplated by this Agreement;

                  (xvi) any Contract for which the Company must obtain a Consent
in connection with the transactions contemplated by this Agreement; and

                  (xvii) any other Contract,  if a breach of such Contract could
reasonably be expected to have a Material Adverse Effect on the Company.

(Contracts  in the  respective  categories  described in clauses  "(i)"  through
"(xvii)" above are referred to in this Agreement as "Material Contracts.")

              (b) The Company has  delivered  to Parent  accurate  and  complete
copies  of all  written  Contracts  identified  in Part  2.10 of the  Disclosure
Schedule,  including all amendments




                                      18.
<PAGE>

thereto.  Part 2.10 of the Disclosure Schedule provides an accurate  description
of the terms of each Company Contract that is not in written form. Each Contract
identified  in Part 2.10 of the  Disclosure  Schedule is valid and in full force
and effect,  and, to the commercially  reasonable best knowledge of the Company,
is enforceable by the Company in accordance with its terms,  subject to (i) laws
of general  application  relating to  bankruptcy,  insolvency  and the relief of
debtors, and (ii) rules of law governing specific performance, injunctive relief
and other equitable remedies.

              (c) Except as set forth in Part 2.10 of the Disclosure Schedule:

                  (i) the Company has not violated or breached, or committed any
default  in each case in any  material  respect  with  respect  to such  Company
Contract under, any Company Contract,  and, to the commercially  reasonable best
knowledge of the Company,  no other Person has breached or materially  violated,
or committed any default under any Company Contract;

                  (ii) to the  commercially  reasonable  best  knowledge  of the
Company,  no event has occurred,  and no circumstance or condition exists,  that
(with or without notice or lapse of time) will, or could  reasonably be expected
to, (A) result in a breach or material violation of any of the provisions of any
Material  Contract,  (B) give any  Person  the right to  declare  a  default  or
exercise any 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;

                  (iii) since  December 31, 1997,  the Company  has not received
any notice or other  communication  regarding  any actual or possible  breach or
material violation of, or default under, any Company Contract; and

                  (iv) the  Company  has not waived any of its  material  rights
under any Company Contract.

              (d) No Person is  renegotiating,  or has a right  pursuant  to the
terms of any Company Contract to renegotiate,  any amount paid or payable to the
Company under any Material  Contract or any other  material term or provision of
any Material Contract.

              (e)  The  Contracts  identified  in Part  2.10  of the  Disclosure
Schedule  collectively  constitute all of the Contracts  necessary to enable the
Company to conduct its business in the manner in which its business is currently
being conducted.

              (f) Part 2.10 of the Disclosure Schedule identifies and provides a
brief description of each proposed Material Contract as to which any bid, offer,
award,  written  proposal,  term sheet or similar document has been submitted or
received by the Company since January 1, 1999.

              (g) Part 2.10 of the  Disclosure  Schedule  provides  an  accurate
description and breakdown of the Company's backlog under Company Contracts.

              (h) The Company has entered into no Government Contracts.





                                      19.
<PAGE>

         2.11 LIABILITIES.  The Company has no material  accrued,  contingent or
other  liabilities of any nature,  either  matured or unmatured  (whether or not
required to be reflected in financial  statements in accordance  with  generally
accepted accounting  principles,  and whether due or to become due), except for:
(a) liabilities  identified as such in the "liabilities" column of the Unaudited
Interim  Balance  Sheet;  (b)  accounts  payable,   accrued  salaries  or  other
immaterial  liabilities  that have been  incurred by the Company since March 31,
1999 in the ordinary  course of business and consistent  with the Company's past
practices;  (c) liabilities under the Company Contracts  identified in Part 2.10
of the  Disclosure  Schedule,  to the extent the  nature and  magnitude  of such
liabilities  can be  specifically  ascertained  by reference to the text of such
Company  Contracts;  and  (d) the  liabilities  identified  in Part  2.11 of the
Disclosure Schedule

         2.12 COMPLIANCE WITH LEGAL REQUIREMENTS. The Company is, and has at all
times since the Company's  inception  been, in  compliance  with all  applicable
Legal  Requirements,  except  where  the  failure  to  comply  with  such  Legal
Requirements has not had and could not reasonably be expected to have a Material
Adverse  Effect  on the  Company.  Except  as set  forth  in  Part  2.12  of the
Disclosure Schedule, since the Company's inception, the Company has not received
any notice or other  communication  from any  Governmental  Body  regarding  any
actual or possible  material  violation of, or material  failure to comply with,
any Legal Requirement.

         2.13 GOVERNMENTAL AUTHORIZATIONS.  Part 2.13 of the Disclosure Schedule
identifies each material Governmental Authorization held by the Company, and the
Company has delivered to Parent accurate and complete copies of all Governmental
Authorizations   identified  in  Part  2.13  of  the  Disclosure  Schedule.  The
Governmental  Authorizations  identified in Part 2.13 of the Disclosure Schedule
are  valid  and in full  force  and  effect,  and  collectively  constitute  all
Governmental  Authorizations  necessary  to enable the  Company  to conduct  its
business in the manner in which its business is currently being  conducted.  The
Company  is,  and at all  times  since the  Company's  inception  has  been,  in
substantial  compliance  with  the  terms  and  requirements  of the  respective
Governmental  Authorizations identified in Part 2.13 of the Disclosure Schedule.
Since the Company's inception,  the Company has not received any notice or other
communication  from any  Governmental  Body regarding (a) any actual or possible
material  violation of or failure to comply with any term or  requirement of any
Governmental   Authorization,   or  (b)  any  actual  or  possible   revocation,
withdrawal,  suspension,  cancellation,   termination  or  modification  of  any
Governmental Authorization.

         2.14 TAX MATTERS.

              (a) All Tax  Returns  required  to be filed by or on behalf of the
Company with any Governmental  Body with respect to any taxable period ending on
or before the  Closing  Date (the  "Company  Returns")  (i) have been or will be
filed on or before the applicable due date (including any extensions of such due
date),  and (ii) have been,  or will be when filed,  accurately  and  completely
prepared  in all  material  respects in  compliance  with all  applicable  Legal
Requirements.  All amounts  shown on the Company  Returns to be due on or before
the Closing  Date have been or will be paid on or before the Closing  Date.  The
Company has  delivered to Parent  accurate  and  complete  copies of all Company
Returns filed since the Company's inception.





                                      20.
<PAGE>

              (b) The Company  Financial  Statements fully accrue all actual and
contingent  liabilities  for Taxes with respect to all periods through the dates
thereof in accordance with generally accepted accounting principles. The Company
will establish,  in the ordinary course of business and consistent with its past
practices,  reserves  adequate  for the payment of all Taxes for the period from
March 31, 1999  through the Closing  Date,  and the Company  will  disclose  the
dollar amount of such reserves to Parent on or prior to the Closing Date.

              (c) No  Company  Return  relating  to  income  Taxes has ever been
examined or audited by any Governmental Body. Except as se forth in Part 2.14 of
the  Disclosure  Schedule,  there  have  been no  examinations  or audits of any
Company  Returns.  The Company has  delivered  to Parent  accurate  and complete
copies of all audit  reports  and  similar  documents  (to which the Company has
access) relating to the Company Returns. Except as set forth in Part 2.14 of the
Disclosure Schedule,  no extension or waiver of the limitation period applicable
to any of the  Company  Returns  has been  granted  (by the Company or any other
Person), and no such extension or waiver has been requested from the Company.

              (d) Except as set forth in Part 2.14 of the  Disclosure  Schedule,
no claim or Proceeding is pending or has been threatened against or with respect
to the Company in respect of any Tax. There are no unsatisfied  liabilities  for
Taxes (including liabilities for interest additions to tax and penalties thereon
and  related  expenses)  with  respect  to any notice of  deficiency  or similar
document received by the Company with respect to any Tax (other than liabilities
for Taxes asserted under any such notice of deficiency or similar document which
are being  contested  in good  faith by the  Company  and with  respect to which
adequate  reserves  for payment have been  established).  There are no liens for
Taxes upon any of the assets of the Company  except liens for current  Taxes not
yet due and  payable.  The Company has not entered  into or become  bound by any
agreement or consent  pursuant to Section  341(f) of the Code or any  comparable
provisional state or foreign Tax laws. The Company has not been, and the Company
will not be,  required to include any  adjustment in taxable  income for any tax
period (or portion  thereof)  pursuant to Section 481 or 263A of the Code or any
comparable provision under state or foreign Tax laws as a result of transactions
or events occurring, or accounting methods employed, prior to the Closing.

              (e) There is no agreement,  plan,  arrangement  or other  Contract
covering  any  employee  or  independent   contractor  or  former   employee  or
independent   contractor  of  the  Company  that,  considered   individually  or
considered collectively with any other such Contracts, will, or could reasonably
be expected to, give rise  directly or  indirectly  to the payment of any amount
that would not be deductible pursuant to Section 280G or Section 162 of the Code
or any comparable provisional state or foreign Tax laws, other than the payments
listed on Part 2.14(e) of the Disclosure Schedule for which shareholder approval
meeting the requirements of section 280G(b)(5) of the Code are obtained prior to
the Closing Date. The Company is not, and has never been, a party to or bound by
any tax indemnity agreement,  tax sharing agreement, tax allocation agreement or
similar Contract.

         2.15 EMPLOYEE AND LABOR MATTERS; BENEFIT PLANS.

              (a)  Part  2.15(a)  of the  Disclosure  Schedule  identifies  each
salary, bonus, deferred compensation,  incentive  compensation,  stock purchase,
stock option, severance pay,




                                      21.
<PAGE>

termination pay, hospitalization, medical, life or other insurance, supplemental
unemployment  benefits,  profit-sharing,  pension or retirement plan, program or
agreement (collectively, the "Plans") sponsored,  maintained,  contributed to or
required to be  contributed  to by the Company for the benefit of any current or
former  employee of the Company  ("Employee"),  except for Plans which would not
require  the  Company to make  payments  or provide  benefits  having a value in
excess of $25,000 in the aggregate.

              (b)  Except  as set  forth  in  Part  2.15(b)  of  the  Disclosure
Schedule,  the Company does not maintain,  sponsor or contribute to, and, to the
best  of the  knowledge  of  the  Company,  has  not at  any  time  in the  past
maintained,  sponsored or contributed to, any employee  pension benefit plan (as
defined in Section 3(2) of the Employee  Retirement Income Security Act of 1974,
as amended  ("ERISA"),  whether or nor excluded  from  coverage  under  specific
Titles or Merger  Subtitles  of ERISA) for the  benefit of  Employees  or former
Employees (a "Pension Plan").

              (c) The Company  maintains,  sponsors or contributes only to those
employee welfare benefit plans (as defined in Section 3(1) of ERISA,  whether or
not excluded from coverage under specific  Titles or Merger  Subtitles of ERISA)
for the benefit of Employees  or former  Employees  which are  described in Part
2.15(c) of the  Disclosure  Schedule (the "Welfare  Plans"),  none of which is a
multi-employer plan (within the meaning of Section 3(37) of ER1SA)

              (d) With  respect to each  Plan,  the  Company  has  delivered  to
Parent:

                    (i) an accurate  and complete  copy of such Plan  (including
               all amendments thereto);

                    (ii) an accurate and complete copy of the annual report,  if
               required  under  ERISA,  with respect  to such Plan  for the last
               two years;

                    (iii) an  accurate  and  complete  copy  of  the most recent
               summary plan description,  together with each Summary of Material
               Modifications,  if required  under  ERISA,  with  respect to such
               Plan, and all material employee  communications  relating to such
               Plan;

                    (iv) if such  Plan is  funded  through  a trust or any third
               party funding vehicle, an accurate and complete copy of the trust
               or other funding agreement (including all amendments thereto) and
               accurate and complete copies the most recent financial statements
               thereof;

                    (v) accurate and complete  copies of all Contracts  relating
               to such Plan,  including service provider  agreements,  insurance
               contracts,  minimum  premium  contracts,   stop-loss  agreements,
               investment management agreements,  subscription and participation
               agreements and record keeping agreements; and

                    (vi)  an  accurate  and  complete  copy of the  most  recent
               determination  letter received from the Internal  Revenue Service
               with  respect  to such  Plan  (if  such  Plan is intended  to  be
               qualified under Section 401(a) of the Code).





                                      22.
<PAGE>

              (e) The  Company is not  required  to be,  and, to the best of the
knowledge  of the  Company has never been  required  to be,  treated as a single
employer  with any other Person  under  Section  4001(b)(1)  of ERISA or Section
414(b),  (c), (m) or (o) of the Code.  The Company has never been a member of an
"affiliated service group" within the meaning of Section 414(m) of the Code. The
Company has never made a complete or partial  withdrawal  from a  multi-employer
plan,  as  such  term is  defined  in  Section  3(37)  of  ER1SA,  resulting  in
"withdrawal  liability,"  as such  term is  defined  in  Section  4201 of  ERISA
(without regard to subsequent reduction or waiver of such liability under either
Section 4207 or 4208 of ERISA).

              (f) The Company does not have any plan or commitment to create any
additional Welfare Plan or any Pension Plan, or to modify or change any existing
Welfare  Plan or Pension  Plan (other than to comply with  applicable  law) in a
manner that would affect any Employee.

              (g) Except as set forth in Part 2.15(g) of the Disclosure Schedule
no Welfare  Plan  provides  death,  medical or health  benefits  (whether or not
insured)  with  respect  to any  current  or  former  Employee  after  any  such
Employee's  termination of service (other than (i) benefit coverage  mandated by
applicable law,  including  coverage  provided  pursuant to Section 4980B of the
Code,  (ii)  deferred  compensation  benefits  accrued  as  liabilities  on  the
Unaudited  Interim Balance Sheet,  and (iii) benefits the full cost of which are
borne by current or former Employees (or the Employees' beneficiaries)).

              (h) With respect to each of the Welfare Plans constituting a group
health  plan  within  the  meaning  of  Section  4980B(g)(2)  of the  Code,  the
provisions of Section 4980B of the Code ("COBRA") have been complied with in all
material respects.

              (i) Each of the Plans has been  operated and  administered  in all
material  respects in accordance with applicable Legal  Requirements,  including
but not limited to ERISA and the Code.

              (j) Each of the  Plans  intended  to be  qualified  under  Section
401(a) of the Code has  received a  favorable  determination  from the  Internal
Revenue  Service  or has  applied  for (or has time  remaining  to apply  for) a
determination  letter within the period permitted such that retroactive remedial
amendments may be made under Code section 401(b) and the Company is not aware of
any reason why any such determination letter could be revoked.

              (k)  Except  as set  forth  in  Part  2.15(k)  of  the  Disclosure
Schedule, neither the execution,  delivery or performance of this Agreement, nor
the consummation of the Merger or any of the other transactions  contemplated by
this  Agreement,  will  result  in any  payment  (including  any  bonus,  golden
parachute or severance payment) to any current or former Employee or director of
the Company (whether or not under any Plan), or materially increase the benefits
payable under any Plan, or result in any  acceleration of the time of payment or
vesting of any such benefits.

              (l) Part 2.15(l) of the Disclosure Schedule contains a list of all
salaried  employees  of the  Company  as of the  date  of  this  Agreement,  and
correctly  reflects,  in  all  material  respects,   their  salaries  any  other
compensation payable to them (including  compensation payable pursuant to bonus,
deferred compensation or commission arrangements), their dates of




                                      23.
<PAGE>

employment  and their  positions.  The Company is not a party to any  collective
bargaining  contract or other  Contract with a labor union  involving any of its
Employees. All of the Company's employees are "at will" employees.

              (m)  Part  2.15(m)  of the  Disclosure  Schedule  identifies  each
Employee who is not fully  available to perform  work because of  disability  or
other leave and sets forth the basis of such leave and the  anticipated  date of
return to full service.

              (n) The Company is in compliance in all material respects with all
applicable Legal Requirements and Contracts  relating to employment,  employment
practices,  wages,  bonuses and terms and  conditions of  employment,  including
employee compensation matters.

              (o)  Except  as set  forth  in  Part  2.15(o)  of  the  Disclosure
Schedule,  the Company has good labor  relations,  and has no  knowledge  of any
facts  indicating  that (i) the  consummation  of the Merger or any of the other
transactions  contemplated by this Agreement will have a material adverse effect
on the Company's labor relations, or (ii) any of the Company's employees intends
to terminate his or her employment with the Company.

         2.16  ENVIRONMENTAL  MATTERS.  The  Company  is in  compliance  in  all
material  respects with all  applicable  Environmental  Laws,  which  compliance
includes  the  possession  by the Company of all permits and other  Governmental
Authorizations required under applicable Environmental Laws, and compliance with
the terms and  conditions  thereof.  The Company has not  received any notice or
other communication (in writing or otherwise), whether from a Governmental Body,
citizens group,  employee or otherwise,  that alleges that the Company is not in
compliance with any Environmental Law, and, to the commercially  reasonable best
knowledge of the Company,  there are no  circumstances  that could reasonably be
expected  to  prevent  or  interfere  with  the  Company's  compliance  with any
Environmental Law in the future.  To the commercially  reasonable best knowledge
of the Company (a) all property that is leased to,  controlled by or used by the
Company, and all surface water, groundwater and soil associated with or adjacent
to such  property is free of any  material  environmental  contamination  of any
nature, (b) none of the property leased to, controlled by or used by the Company
contains  any  underground  storage  tanks,  asbestos,   equipment  using  PCBs,
underground  injection wells, and (c) none of the property leased to, controlled
by or used by the Company contains any septic tanks in which process  wastewater
or any Materials of  Environmental  Concern have been disposed.  The Company has
never sent or  transported,  or arranged to send or transport,  any Materials of
Environmental  Concern to a site that, pursuant to any applicable  Environmental
Law (i) has been placed on the  "National  Priorities  List" of hazardous  waste
sites or any similar state list, (ii) is otherwise designated or identified as a
potential site for remediation, cleanup, closure or other environmental remedial
activity,  or (iii) is  subject  to a legal  Requirement  to take  "removal"  or
"remedial"  action as detailed in any  applicable  Environmental  Law or to make
payment  for the cost of  cleaning up the site.  To the  Company's  commercially
reasonable best  knowledge,  no current or prior owner of any property leased or
controlled  by the Company has  received any notice or other  communication  (in
writing or otherwise),  whether from a Government Body, citizens group, employee
or  otherwise,  that  alleges that such current or prior owner or the Company is
not in compliance with any  Environmental  Law. All Governmental  Authorizations
currently held by the Company pursuant to  Environmental  Laws are identified in
Part 2.16 of the  Disclosure  Schedule.  (For purposes of this Section 2.16: (i)
"Environmental




                                      24.
<PAGE>

Law" means any federal,  state,  local or foreign Legal Requirement  relating to
pollution or protection of human health or the  environment  (including  ambient
air, surface water, ground water, land surface or subsurface strata),  including
any law or regulation relating to emissions,  discharges, releases or threatened
releases of Materials of  Environmental  Concern,  or otherwise  relating to the
manufacture,   processing,  distribution,  use,  treatment,  storage,  disposal,
transport or handling of Materials of Environmental Concern; and (ii) "Materials
of Environmental Concern" include chemicals, pollutants,  contaminants,  wastes,
toxic substances,  petroleum and petroleum products and any other substance that
is now regulated by any  Environmental  Law or that is known generally to pose a
danger to health, reproduction or the environment.)

         2.17  INSURANCE.  Part 2.17 of the Disclosure  Schedule  identifies all
insurance  policies  maintained  by, at the expense of or for the benefit of the
Company and identifies any material claims made thereunder,  and the Company has
delivered  to Parent  accurate  and complete  copies of the  insurance  policies
identified  on  Part  2.17 of the  Disclosure  Schedule.  Each of the  insurance
policies identified in Part 2.17 of the Disclosure Schedule is in full force and
effect. Since the Company's  inception,  the Company has not received any notice
or other  communication  regarding  any actual or possible (a)  cancellation  or
invalidation of any insurance  policy,  (b) refusal of any coverage or rejection
of any claim under any  insurance  policy,  or (c)  material  adjustment  in the
amount of the premiums payable with respect to any insurance policy.

         2.18 RELATED  PARTY  TRANSACTIONS.  Except as set forth in Part 2.18 of
the Disclosure  Schedule:  (a) no Related Party has, and no Related Party has at
any time since the Company's  inception had, any direct or indirect  interest in
any material asset used in or otherwise relating to the business of the Company;
(b) no Related Party is, or has at any time since the Company's  inception been,
indebted to the Company; (c) since the Company's inception, no Related Party has
entered  into,  or has had any direct or  indirect  financial  interest  in, any
material Contract, transaction or business dealing involving the Company; (d) no
Related  Party is competing,  or has at any time since the  Company's  inception
competed, directly or indirectly, with the Company; and (e) no Related Party has
any claim or right against the Company (other than rights under Company  Options
and rights to receive  compensation for services performed as an employee of the
Company);  provided,  that  ownership  of no more than one  percent (1%)  of the
outstanding voting stock of a publicly traded corporation and no more than 5% of
any other entity shall not be deemed a "direct or indirect  financial  interest"
for purposes of this Section 2.18. (For purposes of the Section 2.18 each of the
following shall be deemed to be a "Related  Party":  (i) each individual who is,
or who has at any time  since  the  Company's  inception  been,  an  officer  or
director of the Company; (ii) each member of the immediate family of each of the
individuals  referred  to in clause  "(i)"  above;  and (iii) any trust or other
Entity (other than the Company) in which any one of the individuals  referred to
in  clauses  "(i)" and  "(ii)"  above  holds (or in which  more than one of such
individuals  collectively hold),  beneficially or otherwise,  a material voting,
proprietary or equity interest.)

         2.19 LEGAL PROCEEDINGS; ORDERS.

               (a) Except as set forth in Part 2.19 of the Disclosure  Schedule,
there is no pending Legal  Proceeding,  and (to the best of the knowledge of the
Company no Person has  threatened  to commence  any Legal  Proceeding:  (i) that
involves  the  Company or any of the assets  owned or used by the Company or any
Person whose liability the Company has or may




                                      25.
<PAGE>



have retained or assumed,  either  contractually or by operation of law; or (ii)
that  challenges,  or that may have the effect of preventing,  delaying,  making
illegal  or  otherwise  interfering  with,  the  Merger  or  any  of  the  other
transactions contemplated by this Agreement. To the commercially reasonable best
knowledge  of the  Company,  except as set forth in Part 2.19 of the  Disclosure
Schedule,  no event has occurred,  and no claim,  dispute or other  condition or
circumstance  exists that could reasonably be expected to, give rise to or serve
as a basis for the commencement of any such Legal Proceeding.

              (b) Except as set forth in Part 2.19 of the  Disclosure  Schedule,
no Legal  Proceeding has ever been commenced by or has ever been pending against
the Company.

              (c) There is no order,  writ,  injunction,  judgment  or decree to
which  the  Company,  or any of the  assets  owned  or used by the  Company,  is
subject.  To the  commercially  reasonable  best  knowledge of the  Company,  no
officer  or other  employee  of the  Company  is  subject  to any  order,  writ,
injunction,  judgment or decree that  prohibits  such officer or other  employee
from engaging in or continuing any conduct, activity or practice relating to the
Company's business.

         2.20  AUTHORITY;  BINDING  NATURE OF  AGREEMENT.  The  Company  has the
requisite  right,  power  and  authority  to  enter  into  and  to  perform  its
obligations under this Agreement; and the execution, delivery and performance by
the Company of this Agreement have been duly authorized all necessary  action on
the part of the Company and its board of directors;  subject only to approval of
the Merger by shareholders of the Company. The board of directors of the Company
(at a meeting duly called and held) has (a) determined  (pursuant to a unanimous
vote of all members of the board of directors of the Company) that the Merger is
advisable  and  fair  and  in  the  best   interests  of  the  Company  and  its
shareholders,  (b) authorized and approved  (pursuant to a unanimous vote of all
members of the board of directors of the  Company) the  execution,  delivery and
performance  of this  Agreement  by the  Company  and  approved  (pursuant  to a
unanimous  vote of all members of the board of  directors  of the  Company)  the
Merger,  (c)  recommended  (pursuant  to a unanimous  vote of all members of the
board of directors of the Company) the approval of this Agreement and the Merger
by the holders of Company  Common Stock and the  Company's  Preferred  Stock and
directed  that this  Agreement  and the Merger be submitted  for approval by the
Company's  shareholders,  and (d) adopted  (pursuant to a unanimous  vote of all
members of the board of directors of the Company) a resolution having the effect
of causing the Company  not to be subject to any state  takeover  law or similar
Legal  Requirement  that might otherwise apply to the Merger or any of the other
transactions  contemplated  by this  Agreement.  This Agreement  constitutes the
legal,  valid and binding  obligation  of the Company,  enforceable  against the
Company in accordance with its terms, subject to (i) laws of general application
relating to bankruptcy,  insolvency and the relief of debtors, and (ii) rules of
law  governing  specific  performance,  injunctive  relief  and other  equitable
remedies.

         2.21 NON-CONTRAVENTION;  CONSENTS.  Except as set forth in Part 2.21 of
the Disclosure Schedule,  neither (1) the execution,  delivery or performance of
this Agreement or any of the other agreements referred to in this Agreement, nor
(2) the consummation of the Merger or any of the other transactions contemplated
by this Agreement,  will directly or indirectly (with or without notice or lapse
of time);





                                      26.
<PAGE>

               (a) contravene, conflict with or result in a violation of (i) any
          of the  provisions of the Company's  Articles of  Incorporation  or by
          laws,  or (ii)  any  resolution  adopted  by the  Company's  board  of
          directors;

               (b)  contravene,  conflict  with or result in a violation  of, or
          give any Governmental  Body or other Person the right to challenge any
          of the transactions  contemplated by this Agreement or to exercise any
          remedy or obtain any relief under, any Legal Requirement or any order,
          writ,  injunction,  judgment or decree to which the Company, or any of
          the assets owned or used by the Company, is subject;

               (c) contravene,  conflict with or result in a violation of any of
          the terms or requirements of, or give any Governmental  Body the right
          to  revoke,  withdraw,  suspend,  cancel,  terminate  or  modify,  any
          Governmental  Authorization  that  is  held  by the  Company  or  that
          otherwise  relates to the  Company's  business or to any of the assets
          owned or used by the Company;

               (d) contravene,  conflict with or result in a violation or breach
          of, or  result  in a  default  under,  any  provision  of any  Company
          Contract that is or would constitute a Material Contract,  or give any
          Person the right to (i) declare a default or exercise any remedy under
          any such Company Contract, (ii) accelerate the maturity or performance
          of any such Company Contract, or (iii) cancel, terminate or modify any
          such Company Contract; or

               (e) result in the  imposition  or  creation  of any lien or other
          Encumbrance  upon or with  respect  to any asset  owned or used by the
          Company  (except  for minor liens that will not, in any case or in the
          aggregate,  materially  detract  from the value of the assets  subject
          thereto or materially impair the operations of the Company).

Except as set forth in Part 2.21 of the Disclosure Schedule,  the Company is not
and will not be  required  to make any filing  with or give any notice to, or to
obtain any  Consent  from,  any  Person in  connection  with (x) the  execution,
delivery  or  performance  of  this  Agreement  or any of the  other  agreements
referred to in this Agreement,  or (y) the  consummation of the Merger or any of
the other transactions contemplated by this Agreement,  except for the filing of
the Merger  Agreement  with the  Delaware  Secretary  of State and  Agreement of
Merger with the California Secretary of State.





                                      27.
<PAGE>



         2.22 FULL DISCLOSURE.

              (a) The  representations  and  warranties  made by Company in this
Agreement (as amended by the  Disclosure  Schedule) do not, and the  certificate
referred to in Section 6.5(o) will not, (i) contain any representation, warranty
or information that is false or misleading with respect to any material fact, or
(ii)  omit  to  state  any  material  fact   necessary  in  order  to  make  the
representations, warranties and information contained and to be contained herein
and therein (in the light of the circumstances under which such representations,
warranties  and  information  were or will be made or  provided)  not  false  or
misleading.

              (b) The  information  supplied by the Company for inclusion in the
information statement to be delivered to the Company's shareholders will not, as
of the  date of the  information  statement  or as of the  date  of the  Company
Shareholders'  written consent,  (i) contain any statement that is inaccurate or
misleading with respect to any material fact, or (ii) omit to state any material
fact necessary in order to make such information (in light of the  circumstances
under which it is provided) not false or misleading.

         2.23 NO DISCUSSIONS.  Neither the Company nor any representative of the
Company,  is, or has at any time since May 15, 1999 been,  engaged,  directly or
indirectly, in any discussions or negotiations with any other Person relating to
any Acquisition Proposal.

         2.24 VOTE REQUIRED.  The affirmative  vote of the holders of a majority
of the shares of Company  Common Stock and a majority of the shares of Preferred
Stock outstanding on the record date (the "Required Company  Shareholder  Vote")
is the only vote of the holders of any class or series of the Company's  capital
stock necessary to approve this Agreement, the Merger, the Charter Amendment and
the other transactions contemplated by this Agreement.

         2.25 FINANCIAL ADVISOR.  Except for the fees payable to William Blair &
Company  referred to in Section 1.12  hereof,  no broker,  finder or  investment
banker is entitled to any  brokerage,  finder's  or other fee or  commission  in
connection with the Merger or any of the other transactions contemplated by this
Agreement  based  upon  arrangements  made by or on behalf of the  Company.  The
Company has furnished to Parent  accurate and complete  copies of all agreements
under which any such fees,  commissions  or other  amounts have been paid or may
become  payable  and all  indemnification  and other  agreements  related to the
engagement of William Blair & Company.

3.   REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB

         Parent and Merger Sub jointly and  severally  represent  and warrant to
the Company and the Company Shareholders as follows:

         3.1 ORGANIZATION,  STANDING AND POWER. Each of Parent and Merger Sub is
a corporation  duly organized,  validly  existing and in good standing under the
laws of the State of Delaware, and has all necessary power and authority: (a) to
conduct its  business in the manner in which its  business  is  currently  being
conducted;  (b) to own and use its  assets in the manner in which its assets are
currently owned and used; and (c) to perform its obligations under all Contracts
by which it is bound.  Each of Parent  and Merger  Sub is duly  qualified  to do
business as a foreign  corporation,  and is in good standing,  under the laws of
all jurisdictions  where the



                                      28.
<PAGE>

nature of its business  requires such  qualification and where the failure to be
so qualified would have a Material Adverse Effect on Parent or Merger Sub.

         3.2 SEC FILINGS; FINANCIAL STATEMENTS.

              (a)  Parent  has  delivered  or  made  available  to the  Company,
including through the SEC EDGAR system,  accurate and complete copies (excluding
copies of exhibits) of each report, registration statement (on a form other than
Form S-8) and definitive  proxy  statement  filed by Parent with the SEC between
January 1, 1999 and the date of this  Agreement  (the  "Parent SEC  Documents"),
which are all of the documents (other than preliminary material) that Parent was
required to file with the SEC since such date.  As of the time it was filed with
the SEC (or,  if amended  or  superseded  by a filing  prior to the date of this
Agreement,  then on the  date of  such  filing):  (i)  each  of the  Parent  SEC
Documents complied in all material respects with the applicable  requirements of
the  Securities  Act or the  Exchange Act (as the case may be); and (ii) none of
the Parent SEC Documents  contained  any untrue  statement of a material fact or
omitted to state a material fact  required to be stated  therein or necessary in
order to make the statements  therein, in light of the circumstances under which
they were made, not misleading.

              (b) The consolidated  financial statements contained in the Parent
SEC Documents:  (i) complied as to form in all material respects with applicable
accounting  requirements  and the  published  rules and  regulations  of the SEC
applicable  thereto;  (ii) were prepared in accordance  with generally  accepted
accounting  principles  applied on a  consistent  basis  throughout  the periods
covered,  except as may be indicated in the notes to such  financial  statements
and (in the case of unaudited  statements) as permitted by Form lO-Q of the SEC,
and except that unaudited financial statements may not contain footnotes and are
subject to year-end audit  adjustments  which are not expected to be material in
amount;  and (iii) fairly present the consolidated  financial position of Parent
and its  subsidiaries  as of the respective  dates thereof and the  consolidated
results of operations  of Parent and its  subsidiaries  for the periods  covered
thereby.  There has been no material change in Parent's accounting policy except
as described in the notes to the Parent financial statements.

         3.3 AUTHORITY;  BINDING NATURE OF AGREEMENT. Parent and Merger Sub have
the requisite right, power and authority to perform their obligations under this
Agreement; and the execution,  delivery and performance by Parent and Merger Sub
of this Agreement (including the contemplated issuance of Parent Common Stock in
the Merger in accordance  with this  Agreement) have been duly authorized by all
necessary  action  on the part of Parent  and  Merger  Sub and their  respective
boards of directors.  No vote of Parent's  stockholders is needed to approve the
Merger.  This Agreement  constitutes the legal,  valid and binding obligation of
Parent and Merger Sub,  enforceable  against them in accordance  with its terms,
subject to (i) laws of general  application  relating to bankruptcy,  insolvency
and the relief of debtors, and (ii) rules of law governing specific performance,
injunctive relief and other equitable remedies.

         3.4 VALID ISSUANCE.  Subject to Section 1.5(c), the Parent Common Stock
to be issued pursuant to this Agreement will, when issued in accordance with the
provisions of this Agreement, be validly issued, fully paid and nonassessable.




                                      29.
<PAGE>

         3.5  GOVERNMENTAL  AUTHORIZATION.  Parent has  obtained  each  federal,
state, county, local or foreign governmental consent, license, permit, grant, or
other authorization of a Governmental Body that is required for the operation of
Parent's   business   ("Parent   Authorizations"),   and  all  of  such   Parent
Authorizations are in full force and effect,  except where the failure to obtain
or have any of such Parent  Authorizations are not reasonably expected to have a
Material Adverse Effect on Parent.

         3.6 COMPLIANCE WITH LAWS. Parent has complied with, is not in violation
of, and has not received any notices of violation  with respect to, any federal,
state,  local or foreign statute,  law or regulation with respect to the conduct
of its business, or the ownership or operation of its business,  except for such
violations  or failures to comply as could not  reasonably be expected to have a
Material Adverse Effect on Parent.

         3.7 NO MATERIAL  ADVERSE CHANGE.  Between the date of the balance sheet
included in Parent's  most  recently  filed  report on Form 10-Q and the date of
this  Agreement,  except as disclosed in Parent's most recently  filed report on
Form 10-Q,  there has not occurred any material  adverse change in the business,
financial  condition or results of  operations  of Parent.  For purposes of this
section,  a change in the trading price of Parent's Common Stock, as reported by
the Nasdaq National Market or any other automated  quotation system or exchange,
changes in economic  conditions  or changes in the industry and markets in which
Parent  competes  shall  not  constitute  a  material  adverse  change,  whether
occurring at any time or from time to time.

         3.8 LEGAL PROCEEDINGS. There is no pending Legal Proceeding, and to the
knowledge of Parent,  no Person has threatened to commence any Legal Proceeding,
that  challenges,  or that may have the effect of preventing,  delaying,  making
illegal  or  otherwise  interfering  with,  the  Merger  or  any  of  the  other
transactions contemplated by this Agreement.

         3.9 FULL DISCLOSURE.  The representations and warranties made by Parent
and Merger Sub do not and the certificates of the Parent and Merger Sub referred
to in  Section  7.3 will  not,  (i)  contain  any  information  that is false or
misleading with respect to any material fact, or (ii) omit to state any material
fact necessary in order to make the representations,  warranties and information
contained and to be contained herein and therein (in light of the  circumstances
under which such  representations,  warranties and  information  were or will be
made or provided) not false or misleading.

         3.10 NON-CONTRAVENTION;  CONSENTS. Neither (1) the execution,  delivery
or performance of this Agreement or any of the other  agreements  referred to in
this  Agreement,  nor (2) the  consummation  of the  Merger  or any of the other
transactions  contemplated by this Agreement,  will directly or indirectly (with
or without notice or lapse of time):

               (a) contravene, conflict with or result in a violation of (i) any
          of  the  provisions  of  Parent's  or  Merger  Sub's   Certificate  of
          Incorporation or bylaws, or (ii) any resolution adopted by Parent's or
          Merger  Sub's  shareholders,  board  of  directors  or  any  committee
          thereof;

               (b)  contravene,  conflict  with or result in a violation  of, or
          give any Governmental  Body or other Person the right to challenge any
          of the transactions  contemplated by this Agreement or to exercise any
          remedy or obtain any relief under, any



                                      30.
<PAGE>

          Legal Requirement or any order, writ,  injunction,  judgment or decree
          to which  Parent,  or any of the assets  owned or used by  Parent,  is
          subject;

               (c) contravene,  conflict with or result in a violation of any of
          the terms or requirements of, or give any Governmental  Body the right
          to  revoke,  withdraw,  suspend,  cancel,  terminate  or  modify,  any
          Governmental  Authorization  that is held by Parent or that  otherwise
          relates to Parent's  business or to any of the assets owned or used by
          the Company;

               (d) contravene,  conflict with or result in a violation or breach
          of, or result in a default  under,  any  provision of any agreement of
          Parent filed or incorporated by reference in the Parent SEC Documents.

         3.11 Except as set forth in Part 2.21 of the Disclosure  Schedule,  the
Company is not  and will not be  required  to make any  filing  with or give any
notice to, or to obtain any Consent from, any Person in connection  with (x) the
execution,  delivery  or  performance  of  this  Agreement  or any of the  other
agreements referred to in this Agreement,  or (y) the consummation of the Merger
or any of the other transactions contemplated by this Agreement,  except for the
filing  of the  Merger  Agreement  with the  Delaware  Secretary  of  State  and
Agreement of Merger with the California

         3.12 INTERIM  OPERATIONS  OF 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.

4.   CERTAIN COVENANTS OF THE COMPANY

         4.1 ACCESS AND  INVESTIGATION.  During the period from the date of this
Agreement  through the Effective Time (the  "Pre-Closing  Period"),  the Company
shall, and shall cause its  Representatives  to: (a) provide Parent and Parent's
Representatives  with  reasonable  access  to  the  Company's   Representatives,
personnel  and assets and to all existing  books,  records,  Tax  Returns,  work
papers and other  documents  and  information  relating to the Company;  and (b)
provide Parent and Parent's  Representatives with copies of such existing books,
records,  Tax Returns,  work papers and other documents and information relating
to the Company, and with such additional financial, operating and other data and
information  regarding the Company,  as Parent may reasonably  request.  Without
limiting the generality of the foregoing,  during the  Pre-Closing  Period,  the
Company shall promptly provide Parent with copies of:

              (a) all material  operating and financial  reports prepared by the
Company and its Subsidiaries for the Company's senior management,  including (A)
copies of the unaudited monthly  consolidated  balance sheets of the Company and
the related unaudited monthly consolidated statements of operations,  statements
of shareholders' equity and statements of cash flows and (B) copies of any sales
forecasts,  marketing plans,  development  plans,  discount  reports,  write-off
reports,  hiring  reports  and  capital  expenditure  reports  prepared  for the
Company's senior management;

              (b) any written materials or  communications  sent by or on behalf
of the Company to its shareholders;





                                      31.
<PAGE>

              (c) any material notice,  document or other  communication sent by
or on behalf of the Company to any party to any Company  Contract or sent to the
Company by any party to any Company Contract (other than any communication  that
relates solely to routine  commercial  transactions  between the Company and the
other  party to any such  Company  Contract  and that is of the type sent in the
ordinary course of business and consistent with past practices);

              (d) any notice, report or other document filed with or sent to any
Governmental Body in connection with the Merger or any of the other transactions
contemplated by this Agreement; and

              (e) any material notice,  report or other document received by the
Company from any Governmental Body.

         4.2 OPERATION OF THE COMPANY'S BUSINESS. During the Pre-Closing Period:

               (a) the Company shall conduct its business and  operations in the
          ordinary course and in substantially  the same manner as such business
          and  operations  have  been  conducted  prior  to  the  date  of  this
          Agreement;

               (b) the  Company  shall use all  reasonable  efforts to  preserve
          intact its current business organization,  keep available the services
          of its current  officers and  employees and maintain its relations and
          goodwill  with  all  suppliers,   customers,   landlords,   creditors,
          employees and other Persons  having  business  relationships  with the
          Company;

               (c) the Company shall use commercially reasonable best efforts to
          keep in full force all insurance  policies  identified in Part 2.17 of
          the Disclosure Schedule;

               (d) the Company shall cause its officers to report regularly (but
          in no event less  frequently  than  weekly) to Parent  concerning  the
          status of the Company's business;

               (e) the Company shall not declare,  accrue,  set aside or pay any
          dividend  or make any other  distribution  in respect of any shares of
          capital stock, and shall not repurchase, redeem or otherwise reacquire
          any  shares of  capital  stock or other  securities  (except  that the
          Company may repurchase  Company Common Stock from former employees and
          consultants  pursuant  to  the  terms  of  existing  restricted  stock
          purchase agreements);

               (f) the Company  shall not sell,  issue or authorize the issuance
          of (i) any capital stock or other  security,  (ii) any option or right
          to  acquire  any  capital  stock  or  other  security,  or  (iii)  any
          instrument  convertible  into or exchangeable for any capital stock or
          other  security  (except that the Company  shall be permitted to issue
          Company Common Stock to employees or consultants  upon the exercise of
          outstanding Company Options;

               (g) the Company shall not amend or waive any of its rights under,
          or permit the  acceleration of vesting under, (i) any provision of its
          1996 Stock Option Plan, (ii) any provision of any agreement evidencing
          any  outstanding  Company  Option,  or  (iii)  any  provision  of  any
          restricted stock purchase agreement;





                                      32.
<PAGE>

               (h) the  Company  shall not amend or permit the  adoption  of any
          amendment to the Company's  Articles of  Incorporation  or bylaws,  or
          effect  or permit  the  Company  to become a party to any  Acquisition
          Transaction,  recapitalization,   reclassification  of  shares,  stock
          split,  division  or  subdivision  of  shares,  reverse  stock  split,
          consolidation of shares or similar transaction;

               (i) the  Company  shall not form any  subsidiary  or acquire  any
          equity interest or other interest in any other Entity;

               (j) the Company  shall not make any capital  expenditure,  except
          for  capital  expenditures  that,  when  added  to all  other  capital
          expenditures  made on behalf of the  Company  during  the  Pre-Closing
          Period, do not exceed $10,000 in the aggregate;

               (k) the Company  shall not (i) enter  into,  or permit any of the
          assets owned or used by it to become bound by, any Contract that is or
          would  constitute a Material  Contract,  or (ii) amend or  prematurely
          terminate,  or waive or exercise any material  right or remedy  under,
          any such Contract;

               (l) the Company shall not (i) acquire, lease or license any right
          or other asset from any other Person,  (ii) sell or otherwise  dispose
          of, or lease or license, any right or other asset to any other Person,
          or (iii) waive or relinquish  any right,  except for assets  acquired,
          leased,  licensed or disposed of by the Company  pursuant to Contracts
          that are not  Material  Contracts  except  in the  ordinaiy  course of
          business and consistent with past practice;

               (m) the  Company  shall not (i) lend money to any Person  (except
          that the Company may make routine  travel  advances to  employees  and
          consultants  in the  ordinary  course  of  business  or (ii)  incur or
          guarantee any indebtedness for borrowed money;

               (n) the  Company  shall  not (i)  establish,  adopt or amend  any
          employee  benefit plan (except for the  termination  of the  Company's
          401(k) plan), (ii) pay any bonus or make any  profit-sharing  payment,
          cash incentive  payment or similar  payment to, or increase the amount
          of  the  wages,   salary,   commissions,   fringe  benefits  or  other
          compensation  or  remuneration  payable  to,  any  of  its  directors,
          officers or employees, or (iii) hire any new employee;

               (o) the Company shall not change any of its methods of accounting
          or accounting practices in any material respect;

               (p) the Company shall not make any Tax election;

               (q) the Company shall not commence,  settle or willingly become a
          party to any Legal Proceeding;

               (r) the  Company  shall  not  agree or  commit to take any of the
          actions described in clauses "(e)" through "(q)" above.



                                      33.
<PAGE>


Notwithstanding  the  foregoing,  the Company may take any action  described  in
clauses "(e)"  through "(r)" above if Parent gives its prior written  consent to
the taking of such action by the Company.

         4.3 NO NEGOTIATION.  During the Pre-Closing Period, neither the Company
nor any of its directors,  officers,  employees,  shareholders  or other Company
Representatives, shall, directly or indirectly:

               (a) solicit or encourage the initiation of any inquiry,  proposal
          or offer from any Person  (other than  Parent)  relating to a possible
          Acquisition Transaction;

               (b)  participate in any discussions or negotiations or enter into
          any agreement  with,  or provide any  non-public  information  to, any
          Person  (other  than  Parent)  relating  to or in  connection  with  a
          possible Acquisition Transaction; or

               (c) consider,  entertain or accept any proposal or offer from any
          Person  (other  than  Parent)  relating  to  a  possible   Acquisition
          Transaction.

The Company shall  promptly  notify  Parent in writing of any material  inquiry,
proposal  or  offer  relating  to a  possible  Acquisition  Transaction  that is
received by the  Company  during the  Pre-Closing  Period.  Notwithstanding  the
foregoing  provisions  of this  Section  4.3 above,  if at any time prior to the
approval of this  Agreement and the Merger by the  shareholders  of the Company,
the Board of Directors of the Company determines, in good faith after receipt of
advice from outside counsel,  that the Board's fiduciary duties under applicable
law require it to do so, the  Company in  response  to a proposal  that has been
determined  by it to be a Superior  Offer that was not  solicited by it and that
did not  otherwise  result from a breach of this Section 4.3, and subject to the
Company giving Parent at least two business days written notice of its intention
to do so, may (x) furnish  information with respect to the Company to any person
making a  Superior  Offer  pursuant  to a  customary  confidentiality  agreement
containing  terms  no less  restrictive  than the  terms of the  confidentiality
agreement  entered into between the Company and Parent,  provided that a copy of
all such information is delivered  simultaneously  to Parent,  and (y) engage in
negotiations  regarding  such  proposal.  In the event the  Company  receives  a
Superior Offer,  nothing  contained in this Agreement shall prevent the Board of
Directors of the Company from amending or withdrawing its  recommendation of the
Merger to the  Company's  shareholders,  if the Board  determines in good faith,
after  consultation with outside legal counsel,  that such action is required by
its fiduciary duties under applicable law.

5.   ADDITIONAL COVENANTS OF THE PARTIES

         5.1  FILINGS  AND  CONSENTS.  As  promptly  as  practicable  after  the
execution of this  Agreement,  each party to this  Agreement  (a) shall make all
filings (if any) and give all notices (if any)  required to be made and given by
such party in connection with the Merger and the other transactions contemplated
by this Agreement,  and (1,) shall use all  commercially  reasonable  efforts to
obtain all Consents (if any) required to be obtained (pursuant to any applicable
Legal  Requirement or Contract,  or otherwise) by such party in connection  with
the  Merger  and the other  transactions  contemplated  by this  Agreement.  The
Company  shall  (upon  request)  promptly  deliver to Parent a copy of each such
filing  made,  each such  notice  given and each such  Consent  obtained  by the
Company during the Pre-Closing Period.


                                      34.
<PAGE>



         5.2 COMPANY SHAREHOLDER  CONSENT. The Company shall, in accordance with
its Articles of Incorporation and bylaws and the applicable  requirements of the
California  Corporation  Code,  prepare and distribute a written  consent of its
shareholders  for  approval  of the  Charter  Amendment,  the  Merger  and  this
Agreement (the "Company Shareholder  Consent").  The Company Shareholder Consent
shall be obtained as promptly  as  practicable  and in any event  within 12 days
after  execution of this  agreement.  The Company  shall ensure that the Company
Shareholder  Consent  is  obtained  in  compliance  with  all  applicable  Legal
Requirements.   The  Company's  obligation  to  obtain  shareholder  consent  in
accordance  with this Section 5.2 shall not be limited or otherwise  affected by
the commencement,  disclosure,  announcement or submission of any Superior Offer
or other Acquisition Proposal,  or by any withdrawal,  amendment or modification
of the  recommendation  of the board of directors of the Company with respect to
the Merger.

         5.3 STOCK OPTIONS.

              (a) Subject to Section  5.3(b),  at the Effective Time, all rights
with respect to Company Common Stock under each Company Option then  outstanding
shall be converted  into and become rights with respect to  Parent Common Stock,
and Parent shall assume each such Company  Option in  accordance  with the terms
(as in effect as of the  closing  date) of the stock  option plan under which it
was issued and the stock  option  agreement by which it is  evidenced.  From and
after the  Effective  Time,  (i) each  Company  Option  assumed by Parent may be
exercised solely for shares of Parent Common Stock, (ii) the number of shares of
Parent  Common Stock  subject to each such Company  Option shall be equal to the
number of  shares  of  Company  Common  Stock  subject  to such  Company  Option
immediately  prior to the  Effective  Time  multiplied  by the  Exchange  Ratio,
rounding down to the nearest  whole share,  (iii) the per share  exercise  price
under each such  Company  Option  shall be adjusted  by  dividing  the per share
exercise  price under such Company  Option by the Exchange Ratio and rounding up
to the nearest cent and (iv) any restriction on the exercise of any such Company
Option  shall  continue  in full force and effect and the term,  exercisability,
vesting  schedule and other  provisions of such Company  Option shall  otherwise
remain unchanged;  provided, however, that each Company Option assumed by Parent
in accordance  with this Section 5.3(a) shall,  in accordance with its terms, be
subject  to further  adjustment  as  appropriate  to  reflect  any stock  split,
division  or  subdivision  of  shares,  stock  dividend,  reverse  stock  split,
consolidation  of shares,  reclassification,  recapitalization  or other similar
transaction  subsequent  to the Effective  Time.  Parent shall file with the SEC
within  as soon as  practicable  after  the date on  which  the  Merger  becomes
effective, and in any event within thirty (30) calendar days after the Effective
Time,  a  registration  statement  on Form S-8  relating to the shares of Parent
Common Stock issuable with respect to the Company  Options  assumed by Parent in
accordance with this Section 5.3(a),  which may be legally  registered on a Form
S-8 and shall use its reasonable  efforts to maintain the  effectiveness of such
registration  statement  (and maintain the current  status of the  prospectus or
prospectuses  contained  therein)  for so long  as the  Company  options  remain
outstanding.

              (b) The Company shall take all action that may be necessary (under
the plans pursuant to which Company  Options are  outstanding  and otherwise) to
effectuate the provisions of this Section 5.3 and to ensure that, from and after
the  Effective  Time,  holders of Company  Options  have no rights with  respect
thereto other than those specifically provided in this Section 5.3.





                                      35.
<PAGE>

         5.4  CONVERSION AND EXERCISE.  At or prior to the Closing,  the Company
shall cause all  outstanding  shares of the Preferred Stock of the Company to be
converted into Company Common Stock in accordance with the Company's articles of
incorporation and the Charter Amendment. At or prior to the Closing, the Company
shall cause the holders of all  outstanding  warrants to purchase  shares of the
Company's capital stock to exercise such warrants in accordance with their terms
for cash,  and to cause any shares of preferred  stock  issued upon  exercise of
such warrants to be converted into Company  Common Stock.  All proceeds from the
exercise of such warrants shall be applied, in the order as follows, only (i) to
pay off any bank or other debt,  (ii) to pay off any notes payable  outstanding,
and  (iii) to pay any  transaction  related  expenses.  In the  event  that such
expenses  are paid from the  warrant  proceeds,  such  expenses  shall  still be
considered "Excluded Expenses" for purposes of this Agreement.

         5.5 PUBLIC  ANNOUNCEMENTS.  Except as otherwise required by law, during
the  Pre-Closing  Period,  the Company  and the Parent  shall not (and shall not
permit any of their  respective  Representatives  to) issue any press release or
make any public statement  regarding this Agreement or the Merger,  or regarding
any of the other transactions contemplated by this Agreement,  without the other
party's prior written consent.

         5.6 BEST EFFORTS.  During the Pre-Closing Period, (a) the Company shall
use its best  efforts  to cause  the  conditions  set  forth in  Section 6 to be
satisfied on a timely basis,  and (b) Parent and Merger Sub shall use their best
efforts  to cause the  conditions  set forth in Section 7 to be  satisfied  on a
timely basis.

         5.7 TAX  MATTERS.  Prior to the Closing,  Parent and the Company  shall
execute  and  deliver to Venture  Law Group,  a  professional  corporation,  tax
representation  letters  reasonably  acceptable to Venture Law Group (which will
may be relied upon in connection with any tax opinion which such firm may render
to the Company Shareholders).

         5.8 SEVERANCE AND NONCOMPETITION AGREEMENTS.  Prior to the date of this
Agreement,  the Company shall have caused each of Messrs.  Altomare,  Tilson and
Bonham to execute  and  deliver to the Company  severance  agreements  in a form
reasonably  acceptable to Parent. At or prior to the Closing,  the Company shall
cause John Chisholm to execute and deliver a noninterference agreement in a form
reasonably  acceptable to Parent. At or prior to the Closing,  the Company shall
cause  Messrs.  Sammann  and  McNenny  to  execute  and  deliver  amended or new
agreements providing for specified severance compensation in the event that they
are terminated following the Effective Time.

         5.9  TERMINATION OF COMPANY  INVESTOR  RIGHTS  AGREEMENT.  Prior to the
Closing the Company and the parties to the Second Amended and Restated  Investor
Rights  Agreement  dated  March 5, 1998 by and  between  the Company and certain
investors in the Company (the "Rights  Agreement") shall enter into an agreement
reasonably  satisfactory  in form and  content to Parent  (and  conditioned  and
effective  upon the Closing),  terminating  all of each such  investor's  rights
under the Rights Agreement.

         5.10 FIRPTA MATTERS.  At the Closing,  (a) the Company shall deliver to
Parent a statement  (in such form as may be  reasonably  requested by counsel to
Parent)  conforming  to the  requirements  of Section  1.897 - 2(h)(l)(i) of the
United  States  Treasury  Regulations,  and (b) the



                                      36.
<PAGE>

Company shall deliver to the Internal Revenue Service the notification  required
under Section 1.897 - 2(h)(2) of the United States Treasury Regulations.

         5.11 LISTING.  Parent shall use reasonable  efforts to cause the shares
of Parent  Common Stock being issued  pursuant to this  Agreement to be approved
for listing (subject to notice of issuance) on the Nasdaq National Market.

         5.12  RESIGNATION OF OFFICERS AND DIRECTORS.  The Company shall use all
reasonable  efforts to obtain and  deliver to Parent on or prior to the  Closing
the resignation of each officer and director of each of the Company.

         5.13 SECURITYHOLDER REPRESENTATION STATEMENTS; APPOINTMENT OF PURCHASER
REPRESENTATIVE.  Each  securityholder  of the Company  who is to receive  Parent
Common Stock in  connection  with this  Agreement  shall  complete and execute a
securityholder  representation  statement,  which  shall,  among  other  things,
provide  certain  representations  and  warranties  to Parent,  and  appoint The
Portola Group, Inc. to serve as such securityholder's  purchaser  representative
in the event that such securityholder is not an "accredited investor." A form of
such  securityholder  representation  statement is attached as Exhibit D to this
Agreement.

         5.14  SECURITIES  ACT  EXEMPTION.  The Parent Common Stock to be issued
pursuant to this Agreement initially will not be registered under the Securities
Act of 1933 as amended (the "Securities  Act"), in reliance on the exemption set
forth in Section 4(2) and Rule 506 of Regulation D thereunder.

         5.15  STOCK  RESTRICTIONS.   In  addition  to  any  legend  imposed  by
applicable  state  securities  laws or by any contract that  continues in effect
after the Effective Time, the certificates  representing shares of Parent Common
Stock issued  pursuant to this  Agreement  shall bear a restrictive  legend (and
stop orders  shall be placed  against the  transfer  thereof  with the  Parent's
Transfer Agent), stating substantially as follows:

               THE  SECURITIES  REPRESENTED  BY THIS  CERTIFICATE  HAVE NOT BEEN
               REGISTERED  UNDER THE  SECURITIES  ACT OF 1933,  AS AMENDED  (THE
               "ACT").   THEY  MAY  NOT  BE  SOLD,   TRANSFERRED,   ASSIGNED  OR
               HYPOTHECATED   IN  THE  ABSENCE  OF  AN  EFFECTIVE   REGISTRATION
               STATEMENT RELATED THERETO,  OR AN OPINION OF COUNSEL,  REASONABLY
               SATISFACTORY  TO  THE  COMPANY,  THAT  SUCH  REGISTRATION  IS NOT
               REQUIRED UNDER THE ACT, OR A NO-ACTION LETTER FROM THE SECURITIES
               AND EXCHANGE COMMISSION.

The certificates  representing  shares of Parent Common Stock issued pursuant to
this Agreement that are Restricted Resale Stock shall bear a restrictive  legend
(and stop orders shall be placed against the transfer  thereof with the Parent's
Transfer Agent), stating substantially as follows

               THE SECURITIES REPRESENTED BY THIS CERTIFICATE MAY BE TRANSFERRED
               ONLY IN ACCORDANCE  WITH CERTAIN VOLUME  LIMITATIONS  PURSUANT TO
               THE  TERMS  OF  A  CERTAIN  AGREEMENT  AND  PLAN  OF  MERGER  AND
               REORGANIZATION  DATED  JULY 27,  1999,




                                      37.
<PAGE>

               A  COPY  OF  WHICH  WILL  BE  PROVIDED  TO  THE  HOLDER  OF  THIS
               CERTIFICATE UPON REQUEST.

         5.16 REGISTRATION ON FORM S-3;  ADDITIONAL STOCK  RESTRICTIONS.  During
the Pre-Closing  Period,  the Parent and Company shall each use its commercially
reasonable efforts to file, as soon as practicable after the Closing Date but in
any event within 30 days of the Closing Date, a  registration  statement on Form
S-3 with the Securities and Exchange Commission covering the resale of shares of
Parent  Common  Stock  issued  in  connection  with  this  Agreement.  Any  such
registration  shall be  subject  to the  terms and  conditions  set forth in the
Registration  Rights Agreement  attached hereto as Exhibit F. Except for (i) the
Parent  Common  Stock  issued to  William  Blair & Company  and  (ii) the Parent
Common Stock  issued upon the  exercise of the  warrants  referred to in Section
5.4, all shares eligible for  registration on the  above-mentioned  registration
statement shall be deemed Restricted Resale Stock.

         5.17 BLUE SKY LAWS. Parent shall take such steps as may be necessary to
comply  with  the  securities  blue  sky  laws  of all  jurisdictions  that  are
applicable  to the issuance of the Parent Common Stock  pursuant to hereto.  The
Company  shall use its best  efforts  to assist  Parent as may be  necessary  to
comply  with  the  securities  blue  sky  laws  of all  jurisdictions  that  are
applicable in connection  with the issuance of the Parent Common Stock  pursuant
to hereto.

         5.18 NOTIFICATION; UPDATES TO DISCLOSURE SCHEDULE.

              (a) During the  Pre-Closing  Period,  the Parent and Company shall
each promptly notify the other party in writing of:

                  (i) the  discovery  by the  Parent or  Company  of any  event,
condition, fact or circumstance that occurred or existed on or prior to the date
of this  Agreement and that caused or  constitutes an inaccuracy in or breach of
any representation or warranty made by the Parent or Company,  respectively,  in
this Agreement;

                  (ii) any event,  condition,  fact or circumstance that occurs,
arises  or exists  after  the date of this  Agreement  and that  would  cause or
constitute an inaccuracy in or breach of any  representation or warranty made by
the Parent or Company in this Agreement if (A) such  representation  or warranty
had been made as of the time of the  occurrence,  existence or discovery of such
event, condition,  fact or circumstance,  or (B) such event, condition,  fact or
circumstance  had  occurred,  arisen or  existed on or prior to the date of this
Agreement;

                  (iii) any breach of any covenant or  obligation  of the Parent
or Company pursuant to this Agreement; and

                  (iv) any event,  condition,  fact or  circumstance  that would
make the timely  satisfaction of any of the conditions set forth in Section 6 or
Section 7 impossible or unlikely.

              (b) If any event, condition, fact or circumstance that is required
to be  disclosed  pursuant  to this  Section  5.18  requires  any  change in the
Disclosure Schedule, or if any such event, condition, fact or circumstance would
require such a change assuming the Disclosure Schedule were dated as of the date
of the  occurrence,  existence or discovery  of such event,




                                      38.
<PAGE>

condition,  fact or  circumstance,  then the Company shall  promptly  deliver to
Parent an update to the  Disclosure  Schedule  specifying  such change.  No such
update shall be deemed to  supplement or amend the  Disclosure  Schedule for the
purpose  of (i)  determining  the  accuracy  of any of the  representations  and
warranties made by the Company in this Agreement,  or (ii)  determining  whether
any of the conditions set forth in Section 6 has been satisfied.

         5.19 NASDAQ STOCKHOLDER APPROVAL REQUIREMENTS.  Any other provisions of
this Agreement  notwithstanding,  in no event shall Parent issue,  in connection
with the Merger and the transactions  contemplated by this Agreement,  shares of
Parent  Common  Stock in excess  of 5% of the  shares  of  Parent  Common  Stock
outstanding  immediately  prior  to the  Effective  Time of the  Merger  without
obtaining all  stockholder  approvals as may be required  under the rules of the
Nasdaq Stock Market.

6.   CONDITIONS PRECEDENT TO OBLIGATIONS OF PARENT AND MERGER SUB

         The  obligations  of Parent  and  Merger  Sub to effect  the Merger and
otherwise consummate the transactions contemplated by this Agreement are subject
to the  satisfaction,  at or  prior  to the  Closing,  of each of the  following
conditions:

         6.1  ACCURACY  OF  REPRESENTATIONS.  Each  of the  representations  and
warranties  made by the  Company  in  this  Agreement  and in each of the  other
agreements  and   instruments   delivered  to  Parent  in  connection  with  the
transactions  contemplated  by this  Agreement  shall have been  accurate in all
material respects as of the date of this Agreement (without giving effect to any
"Material  Adverse Effect" or other materiality  qualifications,  or any similar
qualifications,  contained  or  incorporated  directly  or  indirectly  in  such
representations and warranties),  and shall be accurate in all material respects
as of the  Scheduled  Closing  Time  as if made at the  Scheduled  Closing  Time
(without  giving effect to any update to the  Disclosure  Schedule,  and without
giving  effect  to  any   "Material   Adverse   Effect"  or  other   materiality
qualifications,  or  any  similar  qualifications,   contained  or  incorporated
directly or indirectly in such representations and warranties).

         6.2 PERFORMANCE OF COVENANTS. All of the covenants and obligations that
the  Company is required to comply with or to perform at or prior to the Closing
shall have been complied with and performed in all respects.

         6.3 SHAREHOLDER APPROVAL.  The principal terms of the Merger shall have
been duly approved by the requisite vote under  applicable law and the Company's
Articles of  Incorporation.  The Charter Amendment shall have been duly approved
by the  requisite  vote  under  applicable  law and the  Company's  Articles  of
Incorporation.

         6.4 CONSENTS.  All Consents  required to be obtained in connection with
the Merger and the other transactions  contemplated by this Agreement (including
the Consents identified in Part 2.21 of the Disclosure Schedule) shall have been
obtained and shall be in full force and effect.

         6.5  AGREEMENTS  AND  DOCUMENTS.  Parent  and the  Company  shall  have
received the following agreements and documents,  each of which shall be in full
force and effect:




                                      39.
<PAGE>

               (a) Voting Agreements in the form of Exhibit B-1, executed by the
          Persons identified on Exhibit B-2;

               (b)  Severance  agreements  in a form  reasonably  acceptable  to
          Parent executed by the individuals identified in Section 5.8 hereof;

               (c) Noninterference agreement (including a waiver of intellectual
          property rights) in a form reasonably acceptable to Parent executed by
          Mr. Chisholm;

               (d)  Securityholder  Representation  Statements  in the  form  of
          Exhibit  D,   executed  by  each  of  the   Company's   non-accredited
          securityholders;

               (e)  Evidence of  termination  of the Investor  Rights  Agreement
          identified in Section 5.9;

               (f) confidential invention and assignment agreements,  reasonably
          satisfactory in form and content to Parent,  executed by all employees
          and  former  employees  of the  Company  and by  all  consultants  and
          independent  contractors and former consultants and former independent
          contractors   to  the  Company  who  have  not  already   signed  such
          agreements;

               (g) the statement referred to in Section 5.10(a), executed by the
          Company;

               (h) the Escrow  Agreement  in the form of Exhibit G,  executed by
          the   Securityholders'   Agent  on  behalf  of  each  of  the  Company
          Shareholders,  and also  executed  by the escrow  agent  (the  "Escrow
          Agreement");

               (i) an  estoppel  certificate,  dated as of a date not more  than
          five  days  prior to the  Closing  Date and  satisfactory  in form and
          content to Parent, executed by Landmark Investments Limited;

               (j) a legal  opinion of Venture Law Group,  in a form  reasonably
          acceptable to Parent and its counsel;

               (k) a certificate  executed on behalf of the Company by its Chief
          Executive  Officer  confirming  that each of the  representations  and
          warranties  set forth in Section 2 is accurate  in all  respects as of
          the  Closing  Date  as if  made  on the  Closing  Date  and  that  the
          conditions  set forth in Sections 6.1, 6.2, 6.3, 6.4, 6.8 and 6.9 have
          been duly satisfied;

               (l)  written  resignations  of  all  officers,  directors  of the
          Company, effective as of the Effective Time;

               (m) a market stand-off from each Major Investor (other than Frank
          Sammann)  agreeing  to not to sell or  dispose of his or her shares of
          Parent Common Stock, during the period  commencing  with the filing by
          Parent of a registration statement for an underwritten public offering
          and  ending  on  such  date  as  may  be  specified  by  the  managing
          underwriter  of such  offering,  provided  that such period  shall not
          exceed (i) with respect to Parent's first underwritten public offering
          after the date of this




                                      40.
<PAGE>

          Agreement,  180 days  following the closing of the public  offering or
          (ii) with respect to the second underwritten public offering,  90 days
          following the closing of the public  offering;  provided  further that
          the market stand-off  agreement shall apply only to Parent's first two
          underwritten  public  offerings that commence  within twelve months of
          the Effective Time where Parent's executive officers, directors and 5%
          stockholders have entered into similar market stand-off agreements;

               (n)  the  Charter  Amendment  shall  have  been  filed  with  the
          Secretary  of State of the State of  California  and shall have become
          effective;

               (o) the  Registration  Rights Agreement in the form of Exhibit F,
          executed by the Securityholder  Agent on behalf of each of the Company
          Shareholders (the "Registration Rights Agreement"); and

               (p)  certificate of merger executed by the Company and Merger Sub
          to be filed with the Secretary of State of the State of Delaware and a
          certificate  of merger  executed  by the  Company to be filed with the
          Secretary  of State of the  State of  California  in  accordance  with
          Section 1.3.

         6.6 FIRPTA  COMPLIANCE.  The Company shall have filed with the Internal
Revenue Service the notification referred to in Section 5.10(b).

         6.7 LISTING. The shares of Parent Common Stock to be issued pursuant to
this  Agreement  shall have been  approved  for  listing  (subject  to notice of
issuance) on the Nasdaq National Market.

         6.8 NO  RESTRAINTS.  No temporary  restraining  order,  preliminary  or
permanent  injunction or other order  preventing the  consummation of the Merger
shall  have been  issued by any court of  competent  jurisdiction  and remain in
effect,  and  there  shall  not be  any  Legal  Requirement  enacted  or  deemed
applicable to the Merger that makes consummation of the Merger illegal.

         6.9 NO LEGAL PROCEEDINGS.  No Person shall have commenced or threatened
to  commence  any Legal  Proceeding  challenging  or seeking  the  recovery of a
material  amount of damages in connection with the Merger or seeking to prohibit
or limit  the  exercise  by  Parent  of any  material  right  pertaining  to its
ownership of stock of the Surviving Corporation.

         6.10 EMPLOYEES.  None of the individuals  identified on Exhibit E shall
have  ceased to be  employed  by, or  notified  the  Company of their  intent to
terminate their employment with, the Company.

         6.11  SECURITIES  EXEMPTION.  The  issuance of Parent  Common  Stock in
accordance  with this  Agreement  shall be exempt  from  registration  under the
Securities Act of 1933, as amended, pursuant to Section 4(2)  thereunder  and/or
Rule 506 of Regulation D.

         6.12 TERMINATION OF EMPLOYEE PLANS. Prior to the Closing, the Company's
board of directors shall have authorized the termination of the Company's 401(k)
plan, contingent on the effectiveness of the Merger.




                                      41.
<PAGE>

         6.13 DEBT PAYOFF.  The Company shall have paid off all outstanding debt
for money borrowed and terminated all existing bank lines of credit.

         6.14 DISSENTERS' RIGHTS. Holders of not more than 5% of the outstanding
shares of the Company's  capital stock shall not have exercised,  nor shall they
have any continued right to exercise,  appraisal,  dissenters' or similar rights
under applicable law with respect to their shares by virtue of the Merger.

7.   CONDITIONS PRECEDENT TO OBLIGATIONS OF THE COMPANY

         The  obligations  of the  Company to effect  the  Merger and  otherwise
consummate the  transactions  contemplated  by this Agreement are subject to the
satisfaction, at or prior to the Closing, of the following conditions:

         7.1  ACCURACY  OF  REPRESENTATIONS.  Each  of the  representations  and
warranties  made by Parent and Merger Sub in this  Agreement  and in each of the
other  agreements  and  instruments  delivered by Parent in connection  with the
transactions  contemplated  by this  Agreement  shall have been  accurate in all
material respects as of the date of this Agreement (without giving effect to any
materiality  or similar  qualifications  contained or  incorporated  directly or
indirectly in such representations and warranties), and shall be accurate in all
material  respects as of the Scheduled  Closing Time as if made at the Scheduled
Closing Time (without giving effect to any materiality or similar qualifications
contained or  incorporated  directly or indirectly in such  representations  and
warranties).

         7.2 PERFORMANCE OF COVENANTS. All of the covenants and obligations that
Parent and Merger Sub are  required  to comply with or to perform at or prior to
the Closing shall have been complied with and performed in all respects.

         7.3 DOCUMENTS. The Company shall have received the following documents:

               (a) a legal  opinion  of  Cooley  Godward  LLP,  dated  as of the
          Closing Date, in a form  reasonably  acceptable to the Company and its
          counsel;

               (b) a  certificate  executed on behalf of Parent by its President
          or its Chief Financial Officer to the effect that, as of the Effective
          Time,  each of the  conditions  set forth in Section 7.1 and 7.2 above
          has been satisfied with respect to Parent;

               (c)  a  certificate   executed  by  the  Secretary  or  Assistant
          Secretary of Parent  certifying:  (1) resolutions  duly adopted by the
          Board  of  Directors  of  Parent  authorizing  the  execution  of this
          Agreement  and  the  execution,   performance   and  delivery  of  all
          agreements,  documents and transactions  contemplated  hereby; and (2)
          the incumbency of the officers of Parent  executing this Agreement and
          all agreements and documents contemplated hereby;

               (d) a  certificate  executed  on  behalf  of  Merger  Sub  by its
          President or its Chief Financial Officer to the effect that, as of the
          Effective  Time,  each of the  conditions set forth in Section 7.1 and
          7.2 above has been satisfied with respect to Merger Sub;





                                      42.
<PAGE>

               (e) the Registration Rights Agreement,  in the form of Exhibit F,
          executed by Parent; and

               (f)  a  certificate   executed  by  the  Secretary  or  Assistant
          Secretary of Merger Sub certifying:  (1)  resolutions  duly adopted by
          the  Board  of  Directors  and the  sole  stockholder  of  Merger  Sub
          authorizing  the  execution  of  this  Agreement  and  the  execution,
          performance and delivery of all agreements, documents and transactions
          contemplated  hereby; and (2) the incumbency of the officers of Merger
          Sub  executing   this  Agreement  and  all  agreements  and  documents
          contemplated hereby.

         7.4  LISTING.  The  shares of Parent  Common  Stock to be issued in the
Merger shall have been  approved for listing  (subject to notice of issuance) on
the Nasdaq National Market.

         7.5 NO  RESTRAINTS.  No temporary  restraining  order,  preliminary  or
permanent  injunction or other order  preventing the  consummation of the Merger
shall  have been  issued by any court of  competent  jurisdiction  and remain in
effect,  and  there  shall  not be  any  Legal  Requirement  enacted  or  deemed
applicable to the Merger that makes consummation of the Merger illegal.

         7.6 CONSENTS.  All Consents  required to be obtained in connection with
the Merger and the other  transactions  contemplated by this Agreement by Parent
shall have been obtained and shall be in full force and effect.

         7.7 NO LEGAL PROCEEDINGS.  No Person shall have commenced or threatened
to  commence  any Legal  Proceeding  challenging  or seeking  the  recovery of a
material  amount of damages in connection with the Merger or seeking to prohibit
or limit  the  exercise  by  Parent  of any  material  right  pertaining  to its
ownership of stock of the Surviving Corporation.

         7.8  GOVERNMENTAL  APPROVALS.  Other than the filings  contemplated  in
Section 2.21, all approvals of government and government  agencies  necessary to
consummate the transactions  hereunder shall have been received,  the absence of
which  would  have  the  effect  of  making  the  Merger  illegal  or  otherwise
prohibiting the consummation of the Merger.

8.   TERMINATION

         8.1 TERMINATION  EVENTS.  This Agreement may be terminated prior to the
Closing:

               (a) by Parent if Parent  reasonably  determines  that the  timely
          satisfaction  of any  condition  set  forth in  Section  6 has  become
          impossible  (other  than as a  result  of any  failure  on the part of
          Parent or  Merger  Sub to  comply  with or  perform  any  covenant  or
          obligation of Parent or Merger Sub set forth in this Agreement);




                                      43.
<PAGE>

               (b) by the Company if the Company reasonably  determines that the
          timely satisfaction of any condition set forth in Section 7 has become
          impossible  (other  than as a result of any failure on the part of the
          Company to comply with or perform any covenant or obligation set forth
          in this Agreement or in any other agreement or instrument delivered to
          Parent);

               (c) by Parent,  if  Company  shall  materially  breach any of its
          representations,  warranties or obligationS  hereunder and such breach
          shall not have been  cured  within  ten  calendar  days of  receipt by
          Company of written notice of such breach,  provided that Parent is not
          in  material  breach  of  any of its  representations,  warranties  or
          obligations hereunder, and provided further, that no cure period shall
          be required for a breach which by its nature cannot be cured;

               (d) by  Company,  if Parent  shall  materially  breach any of its
          representations,  warranties or obligations  hereunder and such breach
          shall not have been cured within ten calendar days  following  receipt
          by Parent of written  notice of such breach,  provided that Company is
          not in material  breach of any of its  representations,  warranties or
          obligations hereunder, and provided further, that no cure period shall
          be required for a breach which by its nature cannot be cured;

               (e) by Parent  if the  Closing  has not taken  place on or before
          August 31,  1999 (other than as a result of any failure on the part of
          Parent to comply with or perform any covenant or  obligation of Parent
          set forth in this Agreement);

               (f) by the  Company  if the  Closing  has not  taken  place on or
          before  August 31,  1999 (other than as a result of the failure on the
          part  of the  Company  to  comply  with or  perform  any  covenant  or
          obligation  set forth in this  Agreement or in any other  agreement or
          instrument delivered to Parent); or

               (g) by the mutual consent of Parent and the Company.

               (h) by  either  Parent  or the  Company  if a court of  competent
          jurisdiction or other  Governmental Body shall have issued a final and
          nonappealable  order,  decree or ruling, or shall have taken any other
          action,  having the effect of  permanently  restraining,  enjoining or
          otherwise prohibiting the Merger;

               (i) by the  Company if the Parent  Average  Stock Price as of the
          Scheduled Closing Time is less than $7.00.

         8.2  TERMINATION  PROCEDURES.   If  Parent  wishes  to  terminate  this
Agreement pursuant to Section 8.1(a) or Section 8.1(c),  Parent shall deliver to
the Company a written notice  stating that Parent is terminating  this Agreement
and  setting  forth  a  brief  description  of the  basis  on  which  Parent  is
terminating  this  Agreement.  If the Company wishes to terminate this Agreement
pursuant  to Section  8.1(b) or Section  8.1(d),  the Company  shall  deliver to
Parent a written notice  stating that the Company is terminating  this Agreement
and  setting  forth a brief  description  of the basis on which the  Company  is
terminating this Agreement.




                                      44.
<PAGE>

         8.3 EFFECT OF TERMINATION.  If this Agreement is terminated pursuant to
Section 8.1 and 8.2, all further obligations of the parties under this Agreement
shall  terminate;  provided,  however,  that: (a) neither the Company nor Parent
shall be relieved of any  obligation or liability  arising from any prior breach
by such party of any provision of this Agreement;  (b) the parties shall, in all
events,  remain bound by and continue to be subject to the  provisions set forth
in Section 10; and (c) the parties  shall,  in all events,  remain  bound by and
continue to be subject to Section 5.5.

9.   INDEMNIFICATION, ETC.

         9.1 SURVIVAL OF REPRESENTATIONS, ETC.

              (a)  The  representations  and  warranties  made  by  the  Company
(including  the  representations  and  warranties  set forth in Section 2) shall
survive the Closing and shall  expire  fifteen  months  after the Closing  Date;
provided,  however,  that if, at any time prior to the fifteenth month following
the  Closing  Date,  any  Indemnitee  (acting  in good  faith)  delivers  to the
Securityholders'  Agent a written notice alleging the existence of an inaccuracy
in or a breach of any of the  representations and warranties made by the Company
(and setting forth in reasonable detail the basis for such  Indemnitee's  belief
that such an  inaccuracy or breach may exist) and asserting a claim for recovery
under Section 9.2 in accordance with the Escrow  Agreement based on such alleged
inaccuracy or breach,  then the claim asserted in such notice shall survive past
the fifteen-month  period following the Closing until such time as such claim is
fully and finally resolved.  All  representations  and warranties made by Parent
and Merger Sub shall  survive the Closing and shall expire nine months after the
Closing Date.

              (b) The representations,  warranties, covenants and obligations of
the Company (as modified by the Disclosure  Schedule delivered as of the date of
this  Agreement),  and the  rights and  remedies  that may be  exercised  by the
Indeninitees,  shall not be limited or  otherwise  affected by or as a result of
any information  furnished to, or any investigation made by or knowledge of, any
of the  Indemnitees or any of their  Representatives.  The  representations  and
warranties  of the Parent and the rights and  remedies  that may be exercised by
the Company  Shareholders  shall not be limited or otherwise affected by or as a
result  of the  information  furnished  to,  or  any  investigation  made  by or
knowledge of, any of the Company Shareholders or any of their Representatives.

              (c) For purposes of this  Agreement,  each statement or other item
of  information  set forth in the  Disclosure  Schedule  or in any update to the
Disclosure  Schedule shall be deemed to be a representation and warranty made by
the Company in this Agreement.

         9.2 INDEMNIFICATION BY COMPANY SHAREHOLDERS.

              (a) From and after the  Effective  Time (but  subject  to  Section
9.1(a)), the Company  Shareholders,  jointly and severally,  shall hold harmless
and indemnify each of the Indemnitees from and against, and shall compensate and
reimburse  each of the  Indemnitees  for,  any  Damages  that  are  directly  or
indirectly suffered or incurred by any of the Indemnitees or to which any of the
Indemnitees  may otherwise  become  subject  (regardless  of whether or not such
Damages relate to any third-party claim) and which arise from or as a result of,
or are directly or



                                      45.
<PAGE>

indirectly connected with: (i) any inaccuracy in or breach of any representation
or  warranty  set forth in  Section 2 or in the  officers'  closing  certificate
(without  giving effect to any "Material  Adverse  Effect" or other  materiality
qualification or any similar qualification contained or incorporated directly or
indirectly  in such representation or warranty,  but giving effect to any update
to the  Disclosure  Schedule  delivered  by the  Company to Parent  prior to the
Closing);  (ii)  any  breach  of any  covenant  or  obligation  of  the  Company
(including  the  covenants  set forth in Sections 4 and 5);  (iii) any  Excluded
Expenses to the extent not offset as of the Closing against the Aggregate Parent
Share Number pursuant to Section 1.5 above or (iv) any Legal Proceeding relating
to any inaccuracy or breach or expense of the type referred to in  clause "(i)",
(ii)  or  "(iii)"  above  (including  any  Legal  Proceeding  commenced  by  any
Indemnitee  for the purpose of enforcing any of its rights under this Section 9,
subject to the provisions of the Escrow Agreement).

              (b) The Company  Shareholders  acknowledge  and agree that, if the
Surviving  Corporation  suffers,  incurs or  otherwise  becomes  subject  to any
Damages as a result of or in connection  with any inaccuracy in or breach of any
representation,  warranty, covenant or obligation, then (without limiting any of
the rights of the Surviving  Corporation as an Indemnitee)  Parent shall also be
deemed, by virtue of its ownership of the stock of the Surviving Corporation, to
have incurred  Damages as a result of and in connection  with such inaccuracy or
breach.

         9.3 THRESHOLD; CEILING.

              (a) The  Company  Shareholders  shall not be  required to make any
indemnification  payment pursuant to Section 9.2(a) until such time as the total
amount of all Damages  (including  the Damages  arising from such  inaccuracy or
breach and all other Damages arising from any other  inaccuracies in or breaches
of any  representations  or  warranties)  that have been  directly or indirectly
suffered or incurred by any one or more of the Indemnitees,  or to which any one
or  more  of the  Indemnitees  has or have  otherwise  become  subject,  exceeds
$150,000 in the aggregate. If the total amount of such Damages exceeds $150,000,
then the Indemnitees shall be entitled to be indemnified against and compensated
and  reimbursed  for all of such Damages.  The provisions of this Section 9.3(a)
shall not apply to any claims made by any Indemnitee regarding  reimbursement of
costs incurred in connection with (i) Excluded Expenses and (ii) the termination
of any Company employee prior to the Effective Time.

              (b) With the  exception  of claims  based upon fraud,  the maximum
liability of each Company Shareholder under Section 9.2(a) shall be equal to the
value of the  shares of Parent  Common  Stock  placed in escrow by such  Company
Shareholders  pursuant to Section 1.8 of this Agreement determined in accordance
with the terms of the Escrow Agreement.

         9.4  EXCLUSIVE  REMEDY.  With the exception of claims based upon fraud,
from and after the  Closing,  recourse of Parent to the shares of Parent  Common
Stock  held in escrow  pursuant  to the Escrow  Agreement  shall be the sole and
exclusive  remedy  of Parent  and the  other  Indemnitees  for  Damages  for any
matters covered by this Article 9.

         9.5 NO CONTRIBUTION.  Each Company Shareholder waives, and acknowledges
and agrees  that he shall not have and shall not  exercise or assert (or attempt
to exercise or assert), any




                                      46.
<PAGE>

right of  contribution,  right of indemnity or other right or remedy against the
Suviving  Corporation in connection with any  indemnification  obligation or any
other  liability to which he may become subject under or in connection with this
Agreement or the officers' closing certificate.

         9.6 INTEREST. Any Company Shareholder who is required to hold harmless,
indemnify, compensate or reimburse any Indemnitee pursuant to this Section 9 and
in accordance  with the Escrow  Agreement with respect to any Damages shall also
be liable to such Indemnitee for interest on the amount of such Damages (for the
period  commencing  as of the  date on  which  such  Company  Shareholder  first
received  notice of a claim for  recovery by such  Indemnitee  and ending on the
date on which the liability of such Company  Shareholder  to such  Indemnitee is
fully  satisfied by such  Shareholder)  at a floating  rate equal to the rate of
interest publicly announced by Bank of America, N.T. & S.A. from time to time as
its prime, base or reference rate.

         9.7 DEFENSE OF THIRD PARTY  CLAIMS.  In the event of the  assertion  or
commencement by any Person of any claim or Legal Proceeding (whether against the
Surviving Corporation,  against Parent or against any other Person) with respect
to which any of the Company  Shareholders may become obligated to hold harmless,
indemnify,  compensate or reimburse any  Indemnitee  pursuant to this Section 9,
Parent shall give the  Securityholders' Agent  prompt notice of  commencement of
any such Legal Proceeding.  The Parent shall have the right, at its election, to
proceed with the defense of such claim or Legal Proceeding on its own,  provided
that,  the  Company  Shareholders  shall have the right at their own  expense to
participate  in, but not control,  such defense.  If Parent so proceeds with the
defense of any such claim or Legal Proceeding:

               (a) all reasonable expenses relating to the defense of such claim
          or Legal Proceeding shall be borne and paid exclusively by the Company
          Shareholders;

               (b) each Company  Shareholder  shall make available to Parent any
          documents  and  materials  in his  possession  or control  that may be
          necessary to the defense of such claim or Legal Proceeding; and

               (c) Parent shall have the right to settle,  adjust or  compromise
          such   claim   or  Legal   Proceeding   with   the   consent   of  the
          Securityholders'   Agent  (as  defined  in  Section  10.1);  provided,
          however, that such consent shall not be unreasonably withheld.

         9.8  EXERCISE  OF  REMEDIES  BY  INDEMNITEES   OTHER  THAN  PARENT.  No
Indemnitee  (other than Parent or any successor thereto or assign thereof) shall
be  permitted to assert any  indemnification  claim or exercise any other remedy
under this Agreement unless Parent (or any successor  thereto or assign thereof)
shall have  consented  to the  assertion  of such  indemnification  claim or the
exercise of such other remedy.

10.  MISCELLANEOUS PROVISIONS

         10.1 SECURITYHOLDERS'  AGENT. In the event that the Merger is approved,
effective  upon such vote and without any  further act of any  shareholder,  the
Company Shareholders shall be deemed to have approved,  among other matters, the
indemnification  and escrow  terms set forth



                                      47.
<PAGE>

in Section 9, the Working Capital Adjustment  provisions of Section 1.11 hereof,
the  terms  of the  Escrow  Agreement and the terms of the  Registration  Rights
Agreement, and shall irrevocably appoint Eric DiBenedetto as their agent for all
purposes in connection therewith (the  "Securityholders'  Agent"),  including to
give and receive notices and communications,  to authorize delivery to Parent of
Parent Common Stock,  cash or other  property from the Escrow Fund, to object to
such deliveries, to agree to, negotiate,  enter into settlements and compromises
of, and demand dispute  resolution  pursuant to the Escrow  Agreement and comply
with orders of courts and awards of arbitrators with respect to  indemnification
claims,  and to take all actions necessary or appropriate in the judgment of the
Securityholders' Agent for the accomplishment of the foregoing. Eric DiDenedetto
hereby accepts his appointment as the  Securityholders'  Agent.  Parent shall be
entitled  to deal  exclusively  with the  Securityholders'  Agent on all matters
relating  to  Section 9, and shall be  entitled  to rely  conclusively  (without
further evidence of any kind  whatsoever) on any document  executed or purported
to be  executed  on behalf of any Company  Shareholder  by the  Securitvholders'
Agent (including,  without limitation, the execution of the Escrow Agreement and
the Registration Rights Agreement on behalf of the Company  Shareholders) and on
any  other  action  taken or  purported  to be taken on  behalf  of any  Company
Shareholder by the  Securityholders'  Agent,  as fully binding upon such Company
Shareholder.  If the  Securityholders'  Agent  shall  die,  become  disabled  or
otherwise  be unable to fulfill  his  responsibilities  as agent of the  Company
Shareholders, then the Company Shareholders shall, in accordance with the Escrow
Agreement,  appoint a successor  agent and,  promptly  thereafter,  shall notify
Parent of the identity of such  successor.  Any such successor  shall become the
"Securityholders' Agent" for purposes of Section 9 and this Section 10.1. If for
any reason there is no Securityholders' Agent at any time, all references herein
to  the  Securityholders'  Agent  shall  be  deemed  to  refer  to  the  Company
Shareholders.

         10.2 FURTHER  ASSURANCES.  Each party hereto shall execute and cause to
be delivered to each other party hereto such  instruments  and other  documents,
and shall take such other actions,  as such other party may  reasonably  request
(prior  to,  at or  after  the  Closing)  for the  purpose  of  carrying  out or
evidencing any of the transactions contemplated by this Agreement.

         10.3 FEES AND EXPENSES. Each party to this Agreement shall bear and pay
all fees,  costs and expenses  (including  legal fees and accounting  fees) that
have been  incurred or that are  incurred by such party in  connection  with the
transactions  contemplated  by this  Agreement,  including  all fees,  costs and
expenses  incurred  by such  party in  connection  with or by  virtue of (a) the
investigation  and  review  conducted  by Parent  and its  Representatives  with
respect to the Company's  business (and the  furnishing of information to Parent
and its  Representatives in connection with such investigation and review),  (b)
the  negotiation,  preparation  and  review  of this  Agreement  (including  the
Disclosure  Schedule)  and all  agreements,  certificates,  opinions  and  other
instruments  and documents  delivered or to be delivered in connection  with the
transactions  contemplated by this Agreement, (c) the preparation and submission
of any filing or notice  required to be made or given in connection  with any of
the transactions contemplated by this Agreement and the obtaining of any Consent
required to be obtained in connection with any of such transactions, and (d) the
consummation of the Merger; provided,  however, that upon the successful Closing
of the  transactions  contemplated  by  this  Agreement,  Parent  agrees  to pay
transaction expenses of the Company Shareholders  (without any adjustment to the
purchase  price) in an amount equal to the lesser of (i) fifty  percent (50%) of
the legal and accounting fees and expenses incurred by the Company (exclusive of
any  fees  and  expenses  paid to  William



                                      48.
<PAGE>

Blair & Company) or (ii)  $50,000.  Transaction  fees and  expenses  not paid by
Parent in accordance with the preceding proviso shall be "Excluded Expenses." If
Excluded Expenses are not paid in cash by the Company  Shareholders and are paid
by the Parent or the  Company,  the amount of such  Excluded  Expenses (i) shall
reduce the Aggregate  Parent Share Number in accordance  with Section 1.5 hereof
or (ii) shall be paid out of the Escrow Fund.

         10.4  ATTORNEYS'  FEES.  If any action or  proceeding  relating to this
Agreement  or the  enforcement  of any  provision  of this  Agreement is brought
against  any party  hereto,  the  prevailing  party shall be entitled to recover
reasonable  attorneys' fees, costs and  disbursements  (in addition to any other
relief to which the prevailing party may be entitled).

         10.5 NOTICES.  Any notice or other communication  required or permitted
to be delivered to any party under this Agreement  shall be in writing and shall
be deemed  properly  delivered,  given and received when  delivered (by hand, by
registered  mail, by courier or express delivery service or by facsimile) to the
address or facsimile  telephone  number set forth beneath the name of such party
below (or to such other  address  or  facsimile  telephone  number as such party
shall have specified in a written notice given to the other parties hereto):

         IF TO PARENT:

         MessageMedia, Inc.
         6060 Spine Road
         Boulder, Colorado 80301
         (303) 440-0303 (fax)
         Attention: Chief Executive Officer

         WITH A COPY TO:

         Cooley Godward LLP
         2595 Canyon Boulevard
         Suite 250
         Boulder, Colorado 80302
         (303) 546-4099 (fax)
         Attention:  James H. Carroll, Esq.

         IF TO THE COMPANY:

         Decisive Technology Corporation
         1991 Landings Drive
         Mountain View, CA  94043
         (650) 237-4411 (fax)
         Attention:  Patrick B. McNenny

         WITH A COPY TO:

         Venture Law Group
         2775 Sand Hill Road




                                      49.
<PAGE>

         Menlo Park, CA 94025
         (650) 233-8386 (fax)
         Attention:  Mark A. Medearis, Esq.

         IF TO THE SECURITYHOLDERS' AGENT:

         Eric DiBenedetto
         Convergence Partners
         3000 Sand Hill Road
         Building 2, Suite 235
         Menlo Park, CA 94025
         (650) 854-3015 (fax)

         WITH A COPY TO:

         Venture Law Group
         2775 Sand Hill Road
         Menlo Park, CA 94025
         (650) 233-8386 (fax)
         Attention:  Mark A. Medearis, Esq.

         10.6  CONFIDENTIALITY.  Without  limiting  the  generality  of anything
contained  in Section  5.5,  on and at all times  after the  Closing  Date,  the
Company  shall keep  confidential,  and shall not use or  disclose  to any other
Person, any non-public document or other non-public information in the Company's
possession that relates to the business of the Company or Parent.

         10.7 TIME OF THE ESSENCE. Time is of the essence to this Agreement.

         10.8  HEADINGS.  The  headings  contained  in  this  Agreement  are for
convenience  of  reference  only,  shall  not be  deemed  to be a part  of  this
Agreement and shall not be referred to in connection  with the  construction  or
interpretation of this Agreement.

         10.9   COUNTERPARTS.   This   Agreement  may  be  executed  in  several
counterparts,  each of which shall constitute an original and all of which, when
taken together, shall constitute one agreement.

         10.10  GOVERNING LAW. This  Agreement  shall be construed in accordance
with,  and  governed  in all  respects  by,  the  internal  laws of the State of
Colorado (without giving effect to principles of conflicts of laws), except that
the Merger and matters of corporate  governance shall be governed by the laws of
Delaware or California, as appropriate.

         10.11 SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon: the
Company and its successors and assigns (if any);  the Company  Shareholders  and
their respective personal representatives,  executors, administrators,  estates,
heirs,  successors  and assigns (if any);  Parent and its successors and assigns
(if any); and Merger Sub and its successors and assigns (if any). This Agreement
shall inure to the benefit of: the  Company;  the Company  Shareholders  (to the
extent set forth in Section 1.5); the holders of assumed Company Options (to the
extent set forth



                                      50.
<PAGE>

in Section 1.6); Parent;  Merger Sub; the other Indemnitees  (subject to Section
9.8);  and the  respective  successors  and assigns  (if any) of the  foregoing.
Parent  may  freely  assign  any  or  all of its  rights  under  this  Agreement
(including its indemnification rights under Section 9 and the Escrow Agreement),
in whole or in part,  to any other  Person  without  obtaining  the  consent  or
approval of any other party hereto or of any other Person.

         10.12  REMEDIES  CUMULATIVE;   SPECIFIC  PERFORMANCE.  The  rights  and
remedies of the parties hereto shall be cumulative  (and not  alternative).  The
parties to this  Agreement  agree that, in the event of any breach or threatened
breach by any  party to this  Agreement  of any  covenant,  obligation  or other
provision set forth in this Agreement for the benefit of any other party to this
Agreement,  such other party shall be entitled  (in addition to any other remedy
that may be available to it) to (a) a decree or order of specific performance or
mandamus to enforce the observance and performance of such covenant,  obligation
or other provision,  and (b) an injunction restraining such breach or threatened
breach.

         10.13 WAIVER.

              (a) No failure on the part of any  Person to  exercise  any power,
right, privilege or remedy under this Agreement, and no delay on the part of any
Person in exercising any power, right, privilege or remedy under this Agreement,
shall  operate as a waiver of such power,  right,  privilege  or remedy;  and no
single or partial exercise of any such power,  right,  privilege or remedy shall
preclude any other or further  exercise  thereof or of any other  power,  right,
privilege or remedy.

              (b) No Person shall be deemed to have waived any claim arising out
of this Agreement, or any power, right, privilege or remedy under this Agreement
unless the waiver of such claim, power, right,  privilege or remedy is expressly
set forth in a written  instrument duly executed and delivered on behalf of such
Person;  and any such waiver  shall not be  applicable or have any effect except
in the specific instance in which it is given.

         10.14 AMENDMENTS.  This Agreement may not be amended, modified, altered
or  supplemented  other than by means of a written  instrument duly executed and
delivered on behalf of all of the parties hereto.

         10.15 SEVERABILITY.  In the event that any provision of this Agreement,
or the application of any such provision to any Person or set of  circumstances,
shall be  determined  to be  invalid,  unlawful,  void or  unenforceable  to any
extent,  the remainder of this Agreement,  and the application of such provision
to Persons or circumstances  other than those as to which it is determined to be
invalid,  unlawful,  void or  unenforceable,  shall not be impaired or otherwise
affected and shall  continue to be valid and  enforceable  to the fullest extent
permitted by law.

         10.16 PARTIES IN INTEREST.  Except for the  provisions of Sections 1.5,
1.6, 1.12 and 9, none of the provisions of this Agreement is intended to provide
any rights or  remedies to any Person  other than the  parties  hereto and their
respective successors and assigns (if any).

         10.17  ENTIRE  AGREEMENT.  This  Agreement  and  the  other  agreements
referred  to herein set forth the entire  understanding  of the  parties  hereto
relating  to the subject  matter  hereof and  thereof  and  supersede  all prior
agreements and  understandings  among or between any of the



                                      51.
<PAGE>

parties  relating to the subject matter hereof and thereof;  provided,  however,
that the nondisclosure  agreements  executed on behalf of Parent and the Company
on February 23, 1999 and May 11, 1999 shall not be superseded by this  Agreement
and shall remain in effect in  accordance  with their terms until the earlier of
(a) the Effective Time, or (b) the date on which such  nondisclosure  agreements
are terminated in accordance with their terms.

         10.18 CONSTRUCTION.

              (a) For purposes of this Agreement, whenever the context requires:
the singular  number shall  include the plural,  and vice versa;  the  masculine
gender shall include the feminine and neuter genders;  the feminine gender shall
include the  masculine and neuter  genders;  and the neuter gender shall include
the masculine and feminine genders.

              (b) The parties hereto agree that any rule of  construction to the
effect that  ambiguities are to be resolved against the drafting party shall not
be applied in the construction or interpretation of this Agreement.

              (c)  As  used  in  this   Agreement,   the  words   "include"  and
"including,"  and  variations  thereof,  shall  not be  deemed  to be  terms  of
limitation,  but rather  shall be deemed to be  followed  by the words  "without
limitation."

              (d)  Except  as  otherwise  indicated,   all  references  in  this
Agreement to "Sections" and "Exhibits" are intended to refer to Sections of this
Agreement and Exhibits to this Agreement.





                                      52.
<PAGE>



         The  parties  hereto  have caused  this  Agreement  to be executed  and
delivered as of July 27, 1999.

                                             MESSAGEMEDIA, INC.,
                                              a Delaware corporation


                                             By:
                                                --------------------------------
                                             Print name:
                                             Title:


                                             MM2 ACQUISITION CORP.,
                                              a Delaware corporation


                                             By:
                                                --------------------------------
                                             Print name:
                                             Title:


                                             DECISIVE TECHNOLOGY
                                             CORPORATION
                                              a Delaware corporation


                                             By:
                                                --------------------------------
                                             Print name:
                                             Title:


                                             SECURITYHOLDERS' AGENT


                                             By:
                                                --------------------------------
                                             Eric DiBenedetto,
                                             as Securityholders' Agent







                                      53.
<PAGE>



                                    EXHIBIT A

                               CERTAIN DEFINITIONS

         For purposes of the Agreement (including this Exhibit A):

         ACCOUNTS  RECEIVABLE.  "Accounts  Receivable" shall mean as of any date
any trade accounts receivable,  notes receivable,  bid or performance  deposits,
employee  advances  and  other  miscellaneous  receivables  associated  with the
Company's business as of such date, other than from an affiliate of the Company.

         ACCRUED EXPENSES.  "Accrued Expenses" shall mean as of any date accrued
payroll and  benefits  and other  accrued  expenses as would appear on a balance
sheet  of  the  Company  as of  such  date  prepared  in  accordance  with  GAAP
consistently  applied,  including  those described in Schedule 1.2 but excluding
any  amounts  payable to  affiliates  of the  Company  and any  compensation  to
employees or others  contingent upon or payable as a result of the  transactions
contemplated hereby.

         ACQUISITION  TRANSACTION.  "Acquisition  Transaction"  shall  mean  any
transaction involving:

               (a) the sale,  license,  disposition  or  acquisition of all or a
          material portion of the Company's business or assets;

               (b) the issuance,  disposition  or acquisition of (i) any capital
          stock or other equity security of the Company (other than common stock
          issued to employees of the Company,  upon exercise of Company  Options
          or otherwise, in routine transactions in accordance with the Company's
          past practices),  (ii) any option,  call, warrant or right (whether or
          not  immediately  exercisable)  to acquire any capital  stock or other
          equity  security of the Company  (other than stock options  granted to
          employees of the Company in routine  transactions  in accordance  with
          the Company's past  practices),  or (iii) any security,  instrument or
          obligation that is or may become  convertible into or exchangeable for
          any capital stock or other equity security of the Company; or

               (c)   any   merger,    consolidation,    business    combination,
          reorganization or similar transaction involving the Company.

         ACQUISITION  PROPOSAL.  "Acquisition  Proposal"  shall  mean any offer,
proposal or inquiry (other than an offer or proposal by Parent) contemplating or
otherwise relating to any Acquisition Transaction.

         AGREEMENT.  "Agreement" shall mean the Agreement and Plan of Merger and
Reorganization  to which this Exhibit A is attached  (including  the  Disclosure
Schedule), as it may be amended from time to time.

         CLOSING  INVENTORY.   "Closing  Inventory"  shall  mean  all  Inventory
relating to the business of the Company on the Closing Date.




                                       1.
<PAGE>

         COMPANY CONTRACT.  "Company  Contract" shall mean any Contract:  (a) to
which the  Company is a party;  (b) by which the Company or any of its assets is
or may become  bound or under which the Company  has, or may become  subject to,
any  obligation;  or (c) under which the Company has or may acquire any right or
interest.

         COMPANY PROPRIETARY ASSET.  "Company  Proprietary Asset" shall mean any
Proprietary  Asset owned by or licensed to the Company or otherwise  used by the
Company.

         CONSENT.  "Consent"  shall mean any  approval,  consent,  ratification,
permission, waiver or authorization (including any Governmental Authorization).

         CONTRACT.  "Contract" shall mean any written,  oral or other agreement,
contract,  subcontract,   lease,  understanding,   instrument,  note,  warranty,
insurance policy,  benefit plan or legally binding  commitment or undertaking of
any nature.

         DAMAGES.  "Damages" shall include any loss, damage,  injury, decline in
value, lost opportunity,  liability, claim, demand, settlement, judgment, award,
fine, penalty,  Tax, fee (including  reasonable  attorneys' fees),  charge, cost
(including costs of investigation) or expense of any nature.

         DISCLOSURE  SCHEDULE.  "Disclosure  Schedule"  shall mean the  schedule
(dated  as of the date of the  Agreement)  delivered  to Parent on behalf of the
Company.

         ENCUMBRANCE.  "Encumbrance" shall mean any lien, pledge, hypothecation,
charge,  mortgage,   security  interest,   encumbrance,   claim,   infringement,
interference,  option,  right  of first  refusal,  preemptive  right,  community
property interest 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).

         ENTITY.  "Entity" shall mean any corporation  (including any non-profit
corporation),   general  partnership,  limited  partnership,  limited  liability
partnership,  joint  venture,  estate,  trust,  company  (including  any limited
liability   company  or  joint  stock  company),   firm  or  other   enterprise,
association, organization or entity.

         EXCHANGE ACT. "Exchange Act" shall mean the Securities  Exchange Act of
1934, as amended.

         EXCLUDED  EXPENSES.  "Excluded  Expenses"  shall  mean (i) any fees and
expenses payable to William Blair & Company  (including but not limited to those
fees  described in Section 1.12 hereof),  (ii) any fees and expenses  payable to
any other purchaser representative, financial advisor, investment banker, broker
or finder,  and (iii) any other transaction fees and expenses of the Company and
the Company  Shareholders  (other than the amounts  agreed to be paid by Parent,
not to exceed $50,000 pursuant to Section 10.3 hereof).

         FULLY  DILUTED  NUMBER OF  COMPANY  SHARES.  "Fully  Diluted  Number of
Company  Shares" means the sum of (i) the aggregate  number of shares of capital
stock of the Company



                                       2.
<PAGE>

outstanding  immediately  prior to the Effective  Time,  plus (ii) the aggregate
number of shares of capital  stock of the  Company  (if any)  issuable  upon the
exercise of any option or other right to acquire  capital  stock of the Company,
or the conversion of any convertible  securities,  outstanding immediately prior
to the Effective  Time. The Fully Diluted Number of Company Shares shall include
all stock options held by David Norman as of the date of this Agreement.

         GAAP. "GAAP" shall mean generally accepted accounting principles in the
United States of America.

         GOVERNMENT  AUTHORIZATION.  "Government  Authorization" shall mean any:
(a)   permit,   license,   certificate,    franchise,   permission,   clearance,
registration, qualification or authorization issued, granted, given or otherwise
made available by or under the authority of any Governmental Body or pursuant to
any Legal  Requirement;  or (b) right under any Contract  with any  Governmental
Body.

         GOVERNMENT  CONTRACT.   "Government  Contract"  shall  mean  any  prime
contract,  subcontract,  letter  contract,  purchase  order  or  delivery  order
executed  or  submitted  to or on behalf of any  Governmental  Body or any prime
contractor or higher-tier subcontractor, or under which any Governmental Body or
any such prime contractor or subcontractor  otherwise has or could be reasonably
expected to acquire any right or interest.

         GOVERNMENTAL  BODY.  "Governmental  Body"  shall mean any:  (a) nation,
state, commonwealth,  province,  territory,  county,  municipality,  district or
other jurisdiction of any nature; (b) federal, state, local, municipal,  foreign
or other government; or (c) governmental or quasi-governmental  authority of any
nature (including any governmental  division,  department,  agency,  commission,
instrumentality,  official,  organization, unit, body or Entity and any court or
other tribunal).

         INDEMNITEES.  "Indemnitees"  shall  mean  the  following  Persons:  (a)
Parent;  (b) Parent's  current and future  affiliates  (including  the Surviving
Corporation);  (c) the respective  Representatives of the Persons referred to in
clauses "(a)" and "(b)" above; and (d) the respective  successors and assigns of
the Persons referred to in clauses "(a)", "(b)" and "(c)" above.

         INVENTORY.  "Inventory"  shall  mean  the  inventory  of  the  Company,
including raw materials, supplies, work in process and finished goods.

         LEGAL  PROCEEDING.  "Legal  Proceeding"  shall mean any  action,  suit,
litigation,    arbitration,   proceeding   (including   any   civil,   criminal,
administrative, investigative or appellate proceeding), hearing, inquiry, audit,
examination  or  investigation  commenced,  brought,  conducted  or  heard by or
before,  or otherwise  involving,  any court or other  Governmental  Body or any
arbitrator or arbitration panel.

         LEGAL REQUIREMENT.  "Legal Requirement" shall mean any federal,  state,
local,  municipal,  foreign or other law,  statute,  constitution,  principle of
common law, resolution, ordinance, code, edict, decree, rule, regulation, ruling
or requirement issued, enacted, adopted,  promulgated,  implemented or otherwise
put into effect by or under the authority of any Governmental Body.




                                       3.
<PAGE>

         MAJOR INVESTORS.  "Major  Investors"  shall mean those  individuals and
entities identified on Exhibit B-2.

         MATERIAL  ADVERSE EFFECT. A violation or other matter will be deemed to
have a "Material  Adverse  Effect" on a party if such  violation or other matter
(considered together with all other matters that would constitute  exceptions to
the  representations  and  warranties  set  forth  in  the  Agreement  or in the
officers' closing  certificate but for the presence of "Material Adverse Effect"
or other  materiality  qualifications,  or any similar  qualifications,  in such
representations  and  warranties)  would  have a  material  adverse  effect on a
party's  business,   condition,  assets,  liabilities,   operations,   financial
performance or prospects.

         PARENT AVERAGE STOCK PRICE. "Parent Average Stock Price" shall mean the
average  of the  closing  sales  price  of a  share of  Parent  Common  Stock as
reported  on the  Nasdaq  National  Market  for each of the  twenty  consecutive
trading days ending on and including the trading day  immediately  preceding the
Scheduled Closing Time.

         PAYABLES.  "Payables"  as of any date  shall  mean any of the  accounts
payable  associated  with the  Company as of such date in  accordance  with GAAP
consistently applied, other than to an affiliate of the Company.

         PERSON.  "Person"  shall mean any  individual,  Entity or  Governmental
Body.

         PREPAID EXPENSES. "Prepaid Expenses" as of any date shall mean payments
made by Company with respect to its business,  other than to an affiliate of the
Company,  which  constitute  prepaid  expenses of the Company in accordance with
GAAP consistently applied.

         PROPRIETARY  ASSET.  "Proprietary  Asset"  shall mean any:  (a) patent,
patent application,  trademark (whether  registered or unregistered),  trademark
application,  trade  name,  fictitious  business  name,  service  mark  (whether
registered  or  unregistered),  service  mark  application,  copyright  (whether
registered  or  unregistered),   copyright   application,   maskwork,   maskwork
application,  trade secret, know-how, customer list, franchise, system, computer
software, computer program, invention,  design, blueprint,  engineering drawing,
proprietary  product,  technology,   proprietary  right  or  other  intellectual
property  right or intangible  asset;  or (b) right to use or exploit any of the
foregoing.

         REPRESENTATIVES.  "Representatives"  shall  mean  officers,  directors,
employees, agents, attorneys, accountants, advisors and representatives.

         RESTRICTED RESALE STOCK. "Restricted Resale Stock" shall mean shares of
Parent Common Stock issued as  consideration  for the Merger that are subject to
restrictions on resale in accordance with the following volume limitations:  (i)
upon the  effectiveness of a registration  statement  registering such shares of
Parent Common Stock, any Person holding  Restricted  Resale Stock may sell up to
4.5% of the shares of Parent  Common Stock  issuable to such Person  pursuant to
this Agreement; (ii) during period between three months and six months following
the Closing Date any Person  holding  Restricted  Resale Stock may sell up to an
additional 15% (aggregating 19.5%) of the shares of Parent Common Stock issuable
to such Person  pursuant to this  Agreement;  (iii)  during  period  between six
months and nine months following the Closing Date, any Person holding Restricted
Resale Stock may sell up to an additional 18% (aggregating



                                       4.
<PAGE>

37.5%) of the shares of Parent Common Stock issuable to such Person  pursuant to
this  Agreement;  (iv)  during  period  between  nine  months and twelve  months
following the Closing Date, any Person holding  Restricted Resale Stock may sell
up to an additional 18% (aggregating 55.5%) of the shares of Parent Common Stock
issuable to such Person  pursuant to this  Agreement;  (v) during period between
twelve months and fifteen months  following the Closing Date, any Person holding
Restricted Resale Stock may sell up to an additional 20% (aggregating  75.5%) of
the shares of Parent  Common  Stock  issuable  to such  Person  pursuant to this
Agreement;  and (vi)  during  period  following  the  fifteenth  month after the
Closing  Date,  any Person  holding  Restricted  Resale  Stock may sell up to an
additional  24.5%  (aggregating  100%) of the  shares  of  Parent  Common  Stock
issuable to such Person pursuant to this  Agreement;  provided,  however,  in no
event may any Person  sell more than the total  number of shares  that they hold
that are vested at the time of such sale; provided,  further, no Person may sell
any shares that are otherwise  subject to other resale  restrictions  where such
sale would be in violation of such other resale restrictions. Except for (i) the
Parent Common Stock issued to William Blair & Company and (ii) the Parent Common
Stock issued to the holders of warrants  referred to in Section 5.4 hereof,  all
shares eligible for registration on the above-mentioned  registration  statement
shall be deemed Restricted Resale Stock.

         SEC.  "SEC"  shall  mean the  United  States  Securities  and  Exchange
Commission.

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

         SUPERIOR OFFER.  "Superior Offer" shall mean an unsolicited,  bona fide
written offer made by a third party to purchase more than 50% of the outstanding
shares of  Company  Common  Stock on terms  that the board of  directors  of the
Company determines, in its reasonable judgment, based upon the written advice of
its financial advisor,  to be more favorable to the Company's  shareholders than
the terms of the  Merger;  provided,  however,  that any such offer shall not be
deemed to be a "Superior  Offer" if any  financing  required to  consummate  the
transaction  contemplated by such offer is not committed and is not likely to be
obtained by such third party on a timely basis.

         TAX. "Tax" shall mean any tax (including any income tax, franchise tax,
capital gains tax, gross receipts tax,  value-added tax, surtax,  excise tax, ad
valorem tax, transfer tax, stamp tax, sales tax, use tax, property tax, business
tax, withholding tax or payroll tax), levy, assessment,  tariff, duty (including
any  customs  duty),  deficiency  or  fee,  and any  related  charge  or  amount
(including any fine, penalty or interest),  imposed, assessed or collected by or
under the authority of any Governmental Body.

         TAX  RETURN.   "Tax  Return"  shall  mean  any  return  (including  any
information return), report, statement, declaration, estimate, schedule, notice,
notification, form, election, certificate or other document or information filed
with or  submitted  to,  or  required  to be filed  with or  submitted  to,  any
Governmental Body in connection with the determination,  assessment,  collection
or payment of any Tax or in connection with the  administration,  implementation
or enforcement of or compliance with any Legal Requirement relating to any Tax.


                                       5.
<PAGE>




                                  EXHIBIT B-1

                           FORM OF VOTING AGREEMENTS




















                                       1.
<PAGE>

                                VOTING AGREEMENT


         THIS  VOTING  AGREEMENT  is entered  into as of July 27,  1999,  by and
between MessageMedia,  Inc., a Delaware corporation  ("Parent"),  and __________
("Stockholder").

                                    RECITALS

         A. Parent, MM2 Acquisition  Corp., a Delaware  corporation and a wholly
owned subsidiary of Parent ("Merger Sub"), and Decisive Technology  Corporation,
a California  corporation  (the  "Company"),  are entering into an Agreement and
Plan of Merger and  Reorganization  of even date herewith  (the  "Reorganization
Agreement") which provides (subject to the conditions set forth therein) for the
merger of Merger Sub into the Company (the "Merger").

         B. In  order  to  induce  Parent  and  Merger  Sub to  enter  into  the
Reorganization Agreement, Stockholder is entering into this Voting Agreement.

                                    AGREEMENT

         The parties to this Voting  Agreement,  intending to be legally  bound,
agree as follows:

SECTION  1.  CERTAIN DEFINITIONS

         For purposes of this Voting Agreement:

         (a) "COMPANY  CAPITAL  STOCK" shall mean any of the  following  (i) the
common  stock,  par value $0.001 per share,  of the  Company,  (ii) the Series A
preferred stock,  par value $0.01 per share, of the Company,  (iii) the Series B
preferred stock, par value $0.01 per share, of the Company,  and (iv) the Series
C preferred stock, par value $0.01 per share, of the Company.

         (b) "EXPIRATION DATE" shall mean the earlier of (i) the date upon which
the Reorganization Agreement is validly terminated,  or (ii) the date upon which
the Merger becomes  effective in accordance with the terms and conditions of the
Reorganization Agreement.

         (c)  Stockholder   shall  be  deemed  to  "OWN"  or  to  have  acquired
"OWNERSHIP"  of a  security  if  Stockholder:  (i) is the  record  owner of such
security;  or (ii) is the  "beneficial  owner" (within the meaning of Rule 13d-3
under the Securities Exchange Act of 1934) of such security.

         (d) "PERSON" shall mean any (i) individual,  (ii) corporation,  limited
liability company, partnership or other entity, or (iii) governmental authority.

         (e) "SUBJECT  SECURITIES" shall mean: (i) all securities of the Company
(including  all shares of Company  Capital  Stock and all options,  warrants and
other rights to




                                       1
<PAGE>

acquire shares of Company  Capital Stock) Owned by Stockholder as of the date of
this Agreement; and (ii) all additional securities of the Company (including all
additional shares of Company Capital Stock and all additional options,  warrants
and  other  rights  to  acquire  shares  of  Company  Capital  Stock)  of  which
Stockholder acquires Ownership during the period from the date of this Agreement
through the Expiration Date.

         (f) A Person  shall be  deemed to have a  effected  a  "TRANSFER"  of a
security if such Person directly or indirectly:  (i) sells, pledges,  encumbers,
grants an option with respect to,  transfers or disposes of such security or any
interest  in such  security;  or (ii)  enters into an  agreement  or  commitment
contemplating  the  possible  sale of,  pledge of,  encumbrance  of, grant of an
option with  respect  to,  transfer of or  disposition  of such  security or any
interest therein.

SECTION 2.  TRANSFER OF SUBJECT SECURITIES

         2.1  TRANSFEREE OF SUBJECT  SECURITIES  TO BE BOUND BY THIS  AGREEMENT.
Stockholder  agrees  that,  during  the  period  from  the  date of this  Voting
Agreement through the Expiration Date, Stockholder shall not cause or permit any
Transfer of any of the Subject  Securities to be effected  unless each Person to
which any of such  Subject  Securities,  or any  interest in any of such Subject
Securities,  is or may be transferred  shall have: (a) executed a counterpart of
this Voting Agreement and a proxy in the form attached hereto as Exhibit A (with
such  modifications  as Parent may reasonably  request);  and (b) agreed to hold
such Subject Securities (or interest in such Subject  Securities) subject to all
of the terms and provisions of this Voting Agreement.

         2.2 TRANSFER OF VOTING  RIGHTS.  Stockholder  agrees  that,  during the
period  from the date of this Voting  Agreement  through  the  Expiration  Date,
Stockholder  shall ensure that: (a) none of the Subject  Securities is deposited
into a voting  trust;  and (b) no proxy is granted,  and no voting  agreement or
similar  agreement  is  entered  into,  with  respect  to  any  of  the  Subject
Securities.

SECTION 3.  VOTING OF SHARES

         3.1 VOTING AGREEMENT.  Stockholder  agrees that, during the period from
the date of this Voting Agreement through the Expiration Date:

               (a) at any  meeting  of  stockholders  of  the  Company,  however
          called,  Stockholder  shall (unless  otherwise  directed in writing by
          Parent) cause all outstanding shares of Company Capital Stock that are
          Owned by  Stockholder  as of the record date fixed for such meeting to
          be voted in favor of the approval  and adoption of the  Reorganization
          Agreement and the approval of the Merger,  and in favor of each of the
          other actions contemplated by the Reorganization Agreement (including,
          without limitation, the Charter Amendment); and

               (b) in the event  written  consents  are  solicited  or otherwise
          sought from  stockholders  of the Company with respect to the approval
          or  adoption  of the  Reorganization  Agreement,  with  respect to the
          approval  of the Merger or with  respect  to any of the other  actions
          contemplated  by  the  Reorganization  Agreement  (including,




                                       2
<PAGE>

          without limitation, the Charter Amendment),  Stockholder shall (unless
          otherwise  directed in writing by Parent)  cause to be executed,  with
          respect to all  outstanding  shares of Company  Capital Stock that are
          Owned by  Stockholder  as of the record  date fixed for the consent to
          the proposed  action,  a written  consent or written  consents to such
          proposed action.

         3.2 PROXY; FURTHER ASSURANCES.

              (a) Contemporaneously with the execution of this Voting Agreement:
(i)  Stockholder  shall  deliver to Parent a proxy in the form  attached to this
Voting  Agreement as Exhibit A, which shall be irrevocable to the fullest extent
permitted by law, with respect to the shares  referred to therein (the "Proxy");
and (ii)  Stockholder  shall cause to be delivered to Parent an additional proxy
(in the form  attached  hereto as  Exhibit A)  executed  on behalf of the record
owner of any  outstanding  shares  of  Company  Capital  Stock  that  are  owned
beneficially (within the meaning of Rule 13d-3 under the Securities Exchange Act
of 1934), but not of record, by Stockholder.

              (b) Stockholder  shall,  at his own expense,  perform such further
acts and execute such further  documents and  instruments  as may  reasonably be
required  to vest in  Parent  the  power to carry  out and  give  effect  to the
provisions of this Voting Agreement.

SECTION 4.  WAIVER OF APPRAISAL RIGHTS

         Stockholder hereby irrevocably and  unconditionally  waives, and agrees
to cause to be waived and to prevent the exercise  of, any rights of  appraisal,
any  dissenters'  rights and any  similar  rights  relating to the Merger or any
related  transaction that Stockholder may have by virtue of the ownership of any
outstanding shares of Company Capital Stock Owned by Stockholder.

SECTION 5.  NO SOLICITATION

         Stockholder agrees that, during the period from the date of this Voting
Agreement  through  the  Expiration  Date,  Stockholder  shall not,  directly or
indirectly, and Stockholder shall ensure that such Stockholder's Representatives
(as defined in the Reorganization Agreement) do not, directly or indirectly: (i)
solicit, initiate, encourage or induce the making, submission or announcement of
any Acquisition  Proposal (as defined in the  Reorganization  Agreement) or take
any action that could reasonably be expected to lead to an Acquisition Proposal;
(ii)  furnish any  information  regarding  the Company or any direct or indirect
subsidiary of the Company to any Person in connection  with or in response to an
Acquisition  Proposal or  potential  Acquisition  Proposal;  or (iii)  engage in
discussions   with  any  Person  with  respect  to  any  Acquisition   Proposal.
Stockholder  shall  immediately  cease and  discontinue,  and Stockholder  shall
ensure that his Representatives immediately cease and discontinue,  any existing
discussions with any Person that relate to any Acquisition Proposal.

SECTION 6.  REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER



                                       3
<PAGE>

         Stockholder hereby represents and warrants to Parent as follows:

         6.1 AUTHORIZATION,  ETC.  Stockholder has the absolute and unrestricted
right,  power,  authority  and  capacity  to execute  and  deliver  this  Voting
Agreement and the Proxy and to perform his obligations hereunder and thereunder.
This Voting  Agreement  and the Proxy have been duly  executed and  delivered by
Stockholder and constitute legal, valid and binding  obligations of Stockholder,
enforceable against  Stockholder in accordance with their terms,  subject to (i)
laws of general application relating to bankruptcy, insolvency and the relief of
debtors, and (ii) rules of law governing specific performance, injunctive relief
and other equitable remedies.

         6.2 NO CONFLICTS OR CONSENTS.

              (a) The  execution  and delivery of this Voting  Agreement and the
Proxy by  Stockholder do not, and the  performance of this Voting  Agreement and
the Proxy by  Stockholder  will not: (i) conflict with or violate any law, rule,
regulation,  order,  decree or judgment  applicable to  Stockholder  or by which
Stockholder or any of  Stockholder's  properties is or may be bound or affected;
or (ii) result in or  constitute  (with or without  notice or lapse of time) any
breach of or default under,  or give to any other Person (with or without notice
or  lapse  of  time)  any  right  of  termination,  amendment,  acceleration  or
cancellation  of, or  result  (with or  without  notice or lapse of time) in the
creation of any  encumbrance  or  restriction  on any of the Subject  Securities
pursuant  to,  any  contract  to  which  Stockholder  is a  party  or  by  which
Stockholder  or  any of his  affiliates  or  properties  is or may be  bound  or
affected.

              (b) The  execution  and delivery of this Voting  Agreement and the
Proxy by  Stockholder do not, and the  performance of this Voting  Agreement and
the Proxy by  Stockholder  will not,  require  any  consent or  approval  of any
Person.

         6.3 TITLE TO SECURITIES.  As of the date of this Voting Agreement:  (a)
Stockholder holds of record (free and clear of any encumbrances or restrictions)
the number of  outstanding  shares of Company  Capital Stock set forth under the
heading  "Shares Held of Record" on the signature page hereof;  (b)  Stockholder
holds (free and clear of any encumbrances or restrictions) the options, warrants
and other rights to acquire shares of Company  Capital Stock set forth under the
heading "Options and Other Rights" on the signature page hereof; (c) Stockholder
Owns the  additional  securities  of the  Company  set forth  under the  heading
"Additional Securities Beneficially Owned" on the signature page hereof; and (d)
Stockholder  does not directly or indirectly  Own any shares of capital stock or
other  securities  of the  Company,  or any  option,  warrant or other  right to
acquire (by purchase,  conversion  or otherwise)  any shares of capital stock or
other securities of the Company, other than the shares and options, warrants and
other rights set forth on the signature page hereof.

         6.4 ACCURACY OF  REPRESENTATIONS.  The  representations  and warranties
contained in this Voting  Agreement  are accurate in all respects as of the date
of this Voting Agreement,  will be accurate in all respects at all times through
the  Expiration  Date and will be accurate in all respects as of the date of the
consummation of the Merger as if made on that date.




                                       4
<PAGE>

SECTION 7.  MISCELLANEOUS

         7.1  SURVIVAL  OF  REPRESENTATIONS,   WARRANTIES  AND  AGREEMENTS.  All
representations,  warranties,  covenants and  agreements  made by Stockholder in
this Voting  Agreement  shall  survive  any  termination  of the  Reorganization
Agreement.

         7.2  INDEMNIFICATION.  Stockholder  shall hold  harmless and  indemnify
Parent and  Parent's  affiliates  from and  against,  and shall  compensate  and
reimburse  Parent  and  Parent's  affiliates  for,  any  loss,  damage,   claim,
liability,  fee (including attorneys' fees), demand, cost or expense (regardless
of whether or not such loss,  damage,  claim,  liability,  fee, demand,  cost or
expense relates to a third-party claim) that is directly or indirectly  suffered
or incurred by Parent or any of Parent's  affiliates,  or to which Parent or any
of Parent's  affiliates  otherwise becomes subject,  and that arises directly or
indirectly  from, or relates directly or indirectly to, (a) any inaccuracy in or
breach of any representation or warranty contained in this Voting Agreement,  or
(b) any failure on the part of Stockholder  to observe,  perform or abide by, or
any other breach of, any  restriction,  covenant,  obligation or other provision
contained in this Voting Agreement or in the Proxy.

         7.3 EXPENSES.  All costs and expenses  incurred in connection  with the
transactions  contemplated  by this Voting  Agreement shall be paid by the party
incurring such costs and expenses.

         7.4 NOTICES. Any notice or other communication required or permitted to
be delivered to either party under this Voting Agreement shall be in writing and
shall be deemed properly delivered,  given and received when delivered (by hand,
by registered  mail, by courier or express  delivery service or by facsimile) to
the address or  facsimile  telephone  number set forth  beneath the name of such
party  below (or to such other  address or  facsimile  telephone  number as such
party shall have specified in a written notice given to the other party):

         if to Stockholder:

               at the  address set forth below  Stockholder's  signature  on the
               signature page hereof

         if to Parent:

               MessageMedia,  Inc.
               6060 Spine Road
               Boulder, Colorado 80301
               (303) 440-0303 (fax)
               Attention: Chief Executive Officer

         7.5 SEVERABILITY. If any provision of this Voting Agreement or any part
of any  such  provision  is  held  under  any  circumstances  to be  invalid  or
unenforceable  in any  jurisdiction,  then (a) such  provision  or part  thereof
shall, with respect to such  circumstances and in such  jurisdiction,  be deemed
amended to conform to applicable  laws so as to be valid and  enforceable




                                       5
<PAGE>

to the fullest possible extent, (b) the invalidity or  unenforceability  of such
provision  or part thereof  under such  circumstances  and in such  jurisdiction
shall not  affect the  validity  or  enforceability  of such  provision  or part
thereof under any other circumstances or in any other jurisdiction,  and (c) the
invalidity  or  unenforceability  of such  provision or part  thereof  shall not
affect the validity or  enforceability of the remainder of such provision or the
validity or enforceability of any other provision of this Voting Agreement. Each
provision of this Voting  Agreement is separable  from every other  provision of
this Voting Agreement,  and each part of each provision of this Voting Agreement
is separable from every other part of such provision.

         7.6 ENTIRE AGREEMENT.  This Voting  Agreement,  the Proxy and any other
documents  delivered by the parties in connection herewith constitute the entire
agreement  between the parties  with  respect to the subject  matter  hereof and
thereof  and  supersede  all prior  agreements  and  understandings  between the
parties with respect thereto. No addition to or modification of any provision of
this Voting  Agreement shall be binding upon either party unless made in writing
and signed by both parties.

         7.7 ASSIGNMENT; BINDING EFFECT. Except as provided herein, neither this
Voting  Agreement  nor any of the  interests  or  obligations  hereunder  may be
assigned or delegated by Stockholder  and any attempted or purported  assignment
or delegation of any of such interests or obligations shall be void.  Subject to
the preceding sentence,  this Voting Agreement shall be binding upon Stockholder
and his heirs,  estate,  executors,  personal  representatives,  successors  and
assigns,  and shall  inure to the  benefit  of  Parent  and its  successors  and
assigns.  Without  limiting  any of the  restrictions  set forth in Section 2 or
elsewhere in this Voting Agreement,  this Voting Agreement shall be binding upon
any  Person to whom any  Subject  Securities  are  transferred.  Nothing in this
Voting  Agreement is intended to confer on any Person (other than Parent and its
successors and assigns) any rights or remedies of any nature.

         7.8 SPECIFIC  PERFORMANCE.  The parties agree that  irreparable  damage
would occur in the event that any of the provisions of this Voting  Agreement or
the  Proxy  was not  performed  in  accordance  with its  specific  terms or was
otherwise  breached.  Stockholder  agrees  that,  in the event of any  breach or
threatened breach by Stockholder of any covenant or obligation contained in this
Voting  Agreement or in the Proxy,  Parent shall be entitled (in addition to any
other remedy that may be available to it,  including  monetary  damages) to seek
and  obtain  (a) a decree  or order  of  specific  performance  to  enforce  the
observance and performance of such covenant or obligation, and (b) an injunction
restraining such breach or threatened  breach.  Stockholder  further agrees that
neither Parent nor any other Person shall be required to obtain, furnish or post
any bond or similar instrument in connection with or as a condition to obtaining
any remedy referred to in this Section 7.8, and Stockholder  irrevocably  waives
any right he may have to require  the  obtaining,  furnishing  or posting of any
such bond or similar instrument.

         7.9  NON-EXCLUSIVITY.  The rights  and  remedies  of Parent  under this
Voting Agreement are not exclusive of or limited by any other rights or remedies
which it may have,  whether at law, in equity, by contract or otherwise,  all of
which shall be cumulative (and not alternative). Without limiting the generality
of the foregoing, the rights and remedies of Parent under this Voting Agreement,
and the obligations and liabilities of Stockholder  under this Voting



                                       6
<PAGE>

Agreement, are in addition to their respective rights, remedies, obligations and
liabilities  under common law  requirements  and under all applicable  statutes,
rules and regulations.

         7.10 GOVERNING LAW; VENUE.

              (a) This  Voting  Agreement  and the Proxy shall be  construed  in
accordance  with,  and  governed  in all  respects  by, the laws of the State of
California (without giving effect to principles of conflicts of laws).

              (b)  STOCKHOLDER  IRREVOCABLY  WAIVES THE RIGHT TO A JURY TRIAL IN
CONNECTION WITH ANY LEGAL  PROCEEDING  RELATING TO THIS VOTING  AGREEMENT OR THE
PROXY OR THE ENFORCEMENT OF ANY PROVISION OF THIS VOTING AGREEMENT OR THE PROXY.

         7.11 COUNTERPARTS. This Voting Agreement may be executed by the parties
in separate counterparts,  each of which when so executed and delivered shall be
an original,  but all such  counterparts  shall together  constitute one and the
same instrument.

         7.12 CAPTIONS.  The captions contained in this Voting Agreement are for
convenience of reference  only,  shall not be deemed to be a part of this Voting
Agreement and shall not be referred to in connection  with the  construction  or
interpretation of this Voting Agreement.

         7.13  ATTORNEYS'  FEES.  If any legal action or other legal  proceeding
relating to this Voting  Agreement or the  enforcement  of any provision of this
Voting Agreement is brought against  Stockholder,  the prevailing party shall be
entitled to recover  reasonable  attorneys'  fees, costs and  disbursements  (in
addition to any other relief to which the prevailing party may be entitled).

         7.14  WAIVER.  No failure on the part of Parent to exercise  any power,
right, privilege or remedy under this Voting Agreement, and no delay on the part
of Parent in exercising any power, right,  privilege or remedy under this Voting
Agreement,  shall operate as a waiver of such power, right, privilege or remedy;
and no single or partial exercise of any such power, right,  privilege or remedy
shall  preclude  any other or further  exercise  thereof or of any other  power,
right,  privilege or remedy. Parent shall not be deemed to have waived any claim
available to Parent arising out of this Voting Agreement,  or any power,  right,
privilege or remedy of Parent under this Voting Agreement,  unless the waiver of
such  claim,  power,  right,  privilege  or remedy is  expressly  set forth in a
written instrument duly executed and delivered on behalf of Parent; and any such
waiver  shall  not be  applicable  or have any  effect  except  in the  specific
instance in which it is given.

         7.15 CONSTRUCTION.

              (a) For  purposes of this Voting  Agreement,  whenever the context
requires:  the singular  number shall  include the plural,  and vice versa;  the
masculine  gender shall  include the feminine and neuter  genders;  the feminine
gender shall  include the masculine  and neuter  genders;  and the neuter gender
shall include masculine and feminine genders.





                                       7
<PAGE>

              (b) The parties agree that any rule of  construction to the effect
that  ambiguities  are to be resolved  against the  drafting  party shall not be
applied in the construction or interpretation of this Voting Agreement.

              (c) As used in this  Voting  Agreement,  the words  "include"  and
"including,"  and  variations  thereof,  shall  not be  deemed  to be  terms  of
limitation,  but rather  shall be deemed to be  followed  by the words  "without
limitation."

              (d) Except as otherwise  indicated,  all references in this Voting
Agreement to "Sections" and "Exhibits" are intended to refer to Sections of this
Voting Agreement and Exhibits to this Voting Agreement.

[Remainder of  page intentionally left blank]



                                       8
<PAGE>


         IN WITNESS  WHEREOF,  Parent and  Stockholder  have  caused this Voting
Agreement to be executed as of the date first written above.


                                        MessageMedia, Inc.


                                        Print Name:
                                                   -----------------------------

                                        Title:
                                              ----------------------------------

                                        Signature:
                                                  ------------------------------


                                        Shareholder

                                        Signature:
                                                  ------------------------------

                                        Print Signatory Name:
                                                             -------------------

                                        Shareholder Name:
                                                         -----------------------

                                             Address:
                                                     ---------------------------

                                             Facsimile:
                                                       -------------------------


<TABLE>
<CAPTION>
Shares Held of Record   Options and Other Rights   Additional Securities Beneficially
- ---------------------   ------------------------   ----------------------------------
                                                   Owned
                                                   -----

<S>                     <C>                        <C>





</TABLE>


                                       9
<PAGE>



                                    EXHIBIT A

                            FORM OF IRREVOCABLE PROXY


         The  undersigned  stockholder  of  DECISIVE  TECHNOLOGY  CORPORATION  a
California  corporation  (the  "Company"),  hereby  irrevocably  (to the fullest
extent permitted by law) appoints and constitutes  Larry Jones, Mary Beth Loesch
and MESSAGEMEDIA, INC., a Delaware corporation ("Parent"), and each of them, the
attorneys and proxies of the  undersigned  with full power of  substitution  and
resubstitution,  to the full extent of the undersigned's  rights with respect to
(i) the  outstanding  shares of capital  stock of the Company owned of record by
the undersigned as of the date of this proxy,  which shares are specified on the
final page of this proxy,  and (ii) any and all other shares of capital stock of
the Company which the undersigned may acquire on or after the date hereof.  (The
shares of the  capital  stock of the Company  referred  to in clauses  "(i)" and
"(ii)" of the immediately preceding sentence are collectively referred to as the
"Shares.") Upon the execution hereof, all prior proxies given by the undersigned
with respect to any of the Shares are hereby revoked, and the undersigned agrees
that no subsequent proxies will be given with respect to any of the Shares.

         This proxy is  irrevocable,  is coupled with an interest and is granted
in connection with the Voting  Agreement,  dated as of the date hereof,  between
Parent  and  the  undersigned  (the  "Voting  Agreement"),  and  is  granted  in
consideration  of Parent  entering  into the  Agreement  and Plan of Merger  and
Reorganization, dated as of the date hereof, among Parent, MM2 Acquisition Corp.
and the Company (the "Reorganization Agreement").

         The  attorneys  and  proxies  named  above will be  empowered,  and may
exercise  this proxy,  to vote the Shares at any time until the earlier to occur
of the valid termination of the  Reorganization  Agreement or the effective time
of  the  merger  contemplated  thereby  (the  "Merger")  at any  meeting  of the
stockholders  of  the  Company,  however  called,  or  in  connection  with  any
solicitation of written consents from  stockholders of the Company,  in favor of
the approval and adoption of the  Reorganization  Agreement  and the approval of
the  Merger,  and in  favor of each of the  other  actions  contemplated  by the
Reorganization Agreement (including, without limitation, the Charter Amendment).

         The undersigned may vote the Shares on all other matters.

         This proxy shall be binding upon the heirs, estate, executors, personal
representatives,  successors  and  assigns  of the  undersigned  (including  any
transferee of any of the Shares).

         If any  provision  of this proxy or any part of any such  provision  is
held under any circumstances to be invalid or unenforceable in any jurisdiction,
then  (a)  such  provision  or  part  thereof   shall,   with  respect  to  such
circumstances  and in  such  jurisdiction,  be  deemed  amended  to  conform  to
applicable  laws so as to be  valid  and  enforceable  to the  fullest  possible
extent, (b) the invalidity or unenforceability of such provision or part thereof
under such  circumstances and in such jurisdiction shall not affect the validity
or   enforceability   of  such   provision  or  part  thereof




                                      A-1
<PAGE>

under  any  other  circumstances  or in any  other  jurisdiction,  and  (c)  the
invalidity  or  unenforceability  of such  provision or part  thereof  shall not
affect the validity or  enforceability of the remainder of such provision or the
validity or  enforceability of any other provision of this proxy. Each provision
of this proxy is separable  from every other  provision of this proxy,  and each
part of each  provision of this proxy is separable from every other part of such
provision.

         This proxy shall terminate upon the earlier of the valid termination of
the Reorganization Agreement or the effective time of the Merger.

Dated:  July 27, 1999.

                                       -----------------------------------------
                                       Name

                                       -----------------------------------------
                                       Print Name of Signatory

                                       -----------------------------------------
                                       Print Name of Shareholder

                                       Number of  shares of common  stock of the
                                       Company owned of record as of the date of
                                       this proxy:


                                       -----------------------------------------




                                      A-2
<PAGE>



                                  EXHIBIT B-2

                      PERSONS TO EXECUTE VOTING AGREEMENTS


Helix Investments
SOFTBANK Ventures
Hanna Capital Management
John Chisholm
Convergence Partners
Partech International
Frank Sammann



                                       1.

<PAGE>

                                    EXHIBIT C

                            FORM OF CHARTER AMENDMENT













                                       2.

<PAGE>



                              AMENDED AND RESTATED

                          ARTICLES OF INCORPORATION OF

                         DECISIVE TECHNOLOGY CORPORATION


         The undersigned, Fran Sammann and Patrick McNenny, hereby certify that:

         ONE:  They are the duly  elected and acting  President  and  Secretary,
respectively, of this corporation.

         TWO: The Articles of Incorporation of this corporation shall be amended
and restated to read in full as follows:

                                   "ARTICLE I

         The name of this corporation is Decisive Technology Corporation.

                                   ARTICLE II

         The  purpose  of this  corporation  is to engage in any  lawful  act or
activity for which a corporation may be organized under the General  Corporation
Law of California other than the banking business, the trust company business or
the practice of a  profession  permitted to be  incorporated  by the  California
Corporations Code.

                                   ARTICLE III

         (A)  Classes of Stock.  This  corporation  is  authorized  to issue two
classes of stock to be designated,  respectively,  "Common Stock" and "Preferred
Stock." The total number of shares which the  corporation is authorized to issue
is sixty-three million  (63,000,000)  shares.  Thirty-eight million (38,000,000)
shares shall be Common Stock, par value $0.01 per share, and twenty-five million
(25,000,000) shares shall be Preferred Stock, par value $0.01 per share.

         (B) Rights,  Preferences,  Privileges  and  Restrictions  of  Preferred
Stock.   The  Preferred   Stock   authorized  by  these  Restated   Articles  of
Incorporation  may be issued  from time to time in series.  The first  series of
Preferred  Stock shall be designated  Series A Preferred Stock and shall consist
of 1,000,000  shares.  The second series of Preferred  Stock shall be designated
Series B Preferred Stock and shall consist of 3,000,000 shares. The third series
of  Preferred  Stock  shall be  designated  Series C  Preferred  Stock and shall
consist  of  21,000,000   shares.  The  rights,   preferences,   privileges  and
restrictions  granted to and imposed on the Series A Preferred Stock, the Series
B  Preferred  Stock and the Series C  Preferred  Stock are as set forth below in
this Article III(B).



<PAGE>


         Except as to the Series A Preferred Stock, the Series B Preferred Stock
and the Series C  Preferred  Stock,  and  except as  otherwise  provided  in the
Restated Articles of Incorporation,  the Board of Directors is hereby authorized
to fix or alter the rights, preferences,  privileges and restrictions granted to
or imposed upon any wholly unissued  additional  series of Preferred  Stock, and
the number of shares  constituting any such series and the designation  thereof,
or any of them.  The Board of Directors,  except as otherwise  provided in these
Articles of  Incorporation,  is also authorized to decrease the number of shares
of any series,  excluding the Series A Preferred  Stock,  the Series B Preferred
Stock, and the Series C Preferred Stock, subsequent to the issuance of shares of
that series, but not below the number of shares of such series then outstanding.
In case the number of shares of any  series  shall be so  decreased,  the shares
constituting  such decrease  shall resume the status which they had prior to the
adoption  of the  resolution  originally  fixing  the  number  of shares of such
series.

              1.  Dividend  Provisions.  The  holders  of  shares  of  Series  A
Preferred  Stock,  Series B  Preferred  Stock and Series C  Preferred  Stock are
entitled to receive,  out of funds legally available therefor,  dividends at the
annual rate of $.02 per share for the Series A Preferred  Stock per annum,  $.18
for the Series B Preferred  Stock and $.055 for the Series C Preferred Stock (as
adjusted to reflect stock splits,  stock  dividends and  recapitalizations  with
respect to such shares) or, if greater (as determined on an as-converted basis),
an  amount  equal  (as  determined  on such  basis)  to that  paid on any  other
outstanding shares of this corporation, when, as and if declared by the Board of
Directors.  Dividends or distributions (other than distributions  payable solely
in shares of Common Stock or other  securities  and rights  convertible  into or
entitling  the holder  thereof to receive,  directly or  indirectly,  additional
shares of Common Stock of this corporation) may be declared and paid upon shares
of Common Stock in any fiscal year of the  corporation  only if dividends  shall
have been paid on or declared  and set apart on all shares of Series A Preferred
Stock,  Series B  Preferred  Stock and Series C  Preferred  Stock at such annual
rate.  Dividends shall not be cumulative and no right shall accrue to holders of
shares of  Preferred  Stock by reason of the fact that  dividends on said shares
are not declared in any prior year, nor shall any undeclared or unpaid  dividend
bear or accrue interest.

              2. Liquidation Preference.

                  (a) In the event of any liquidation, dissolution or winding up
of this corporation,  either voluntary or involuntary, (i) the holders of Series
A Preferred  Stock shall be entitled to receive,  prior and in preference to any
distribution  of any of the assets of this  corporation to the holders of Common
Stock by reason of their ownership thereof, an amount per share equal to the sum
of $0.25 for each outstanding  share of Series A Preferred Stock (as adjusted to
reflect stock dividends, stock splits and recapitalizations with respect to such
shares) (the "Original Issue Price for Series A Preferred  Stock") and an amount
equal to declared  but unpaid  dividends  thereon,  (ii) the holders of Series B
Preferred  Stock shall be entitled to receive,  prior,  and in preference to any
distribution  of any of the assets of this  corporation to the holders of Common
Stock by reason of their ownership thereof, an amount per share equal to the sum
of $2.30 for each outstanding  share of Series B Preferred Stock (as adjusted to
reflect stock dividends, stock splits and recapitalizations with respect to such
shares) (the "Original Issue Price for Series B Preferred  Stock") and an amount
equal to declared but unpaid dividends



                                      -2-
<PAGE>

thereon,  and (iii) the holders of Series C Preferred Stock shall be entitled to
receive,  prior,  and in preference to any  distribution of any of the assets of
this  corporation  to the holders of Common  Stock by reason of their  ownership
thereof,  an amount per share equal to the sum of $0.7032  for each  outstanding
share of Series C Preferred Stock (as adjusted to reflect stock dividends, stock
splits and  recapitalizations  with respect to such shares) (the "Original Issue
Price for Series C Preferred  Stock") and an amount equal to declared but unpaid
dividends  thereon.  If, upon the  occurrence  of such an event,  the assets and
property  thus  distributed  among the holders of the Series A Preferred  Stock,
Series B Preferred  Stock and Series C Preferred  Stock shall be insufficient to
permit the payment to such  holders of the full  preferential  amount,  then the
assets and property of the corporation  legally available for distribution shall
be distributed ratably among the holders of the Series A Preferred Stock, Series
B Preferred  Stock and Series C Preferred  Stock in  proportion to the aggregate
preferential  amounts  owed such holders of the  outstanding  Series A Preferred
Stock, Series B Preferred Stock and Series C Preferred Stock upon a liquidation,
dissolution or winding up the corporation.

                  (b) After the  distribution  described in subsection (a) above
has  been  paid,  the  remaining   assets  of  the  corporation   available  for
distribution to shareholders  shall be distributed  ratably among the holders of
Common Stock based on the number of shares of Common Stock held by each.

                  (c) For  purposes of this  Section 2, (i) any  acquisition  of
this corporation by means of merger or other form of corporate reorganization in
which the shareholders of this corporation  immediately preceding such merger or
reorganization do not own, directly or indirectly, a majority of the outstanding
shares of the  surviving  corporation  following  the  closing of such merger or
consolidation or (ii) a sale of all or  substantially  all of the assets of this
corporation,  shall be treated as a  liquidation,  dissolution  or winding up of
this  corporation  and shall  entitle the  holders of Series A Preferred  Stock,
Series B Preferred  Stock,  Series C Preferred Stock and Common Stock to receive
at the closing cash,  securities or other property as specified in Sections 2(a)
and 2(b).

                  (d) Any  securities  to be  delivered  to the  holders  of the
Series A Preferred  Stock,  Series B Preferred  Stock,  Series C Preferred Stock
and/or Common Stock pursuant to Section 2(c) above shall be valued as follows:

                       (i) Securities not subject to investment  letter or other
similar restrictions on free marketability:

                           (A) If traded on a securities  exchange or the NASDAQ
National  Market  System,  the value  shall be deemed to be the  average  of the
closing  prices of the securities on such exchange over the 30-day period ending
three (3) days prior to the closing;

                           (B) If actively  traded  over-the-counter,  the value
shall be deemed to be the  average of the  closing  bid  prices  over the 30-day
period ending three (3) days prior to the closing; and



                                      -3-
<PAGE>

                           (C) If there is no active  public  market,  the value
shall be the fair market value thereof, as determined in good faith by the Board
of Directors of this corporation.

                       (ii) The method of  valuation  of  securities  subject to
investment letter or other restrictions on free  marketability  shall be to make
an appropriate discount from the market value determined as above in (i)(A), (B)
or (C) to reflect the  approximate  fair market value thereof,  as determined in
good faith by the Board of Directors of this corporation.

                  (e) In the event the  requirements  of subsection 2(c) are not
complied with, the corporation shall forthwith either:

                       (i) cause such closing to be postponed until such time as
the requirements of this Section 2(c) have been complied with, or

                       (ii) cancel such transaction,  in which event the rights,
preferences,  privileges  and  restrictions  of  the  holders  of the  Series  A
Preferred  Stock,  Series B Preferred  Stock and Series C Preferred  Stock shall
revert  to  and  be  the  same  as  such  rights,  preferences,  privileges  and
restrictions existing immediately prior to the date of the first notice referred
to in Section 2(f) hereof.

                  (f) The corporation shall give each holder of record of Series
A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock written
notice of a  transaction  described  in Section  2(c) not later than twenty (20)
days prior to the shareholders'  meeting called to approve such transaction,  or
twenty (20) days prior to the closing of such transaction, whichever is earlier,
and shall also  notify  such  holders in writing of the final  approval  of such
transaction.  The first of such notices  shall  describe the material  terms and
conditions of the impending  transaction and the provisions of Section 2(c), and
the corporation shall thereafter give such holders prompt notice of any material
changes.  The  transaction  shall in no event take place sooner than twenty (20)
days after the  corporation  has given the first  notice  provided for herein or
sooner than ten (10) days after the corporation has given notice of any material
changes  provided  for  herein;  provided,  however,  that such  periods  may be
shortened upon the written consent of the holders of a majority of the shares of
Series A Preferred  Stock and 75% of the Series B  Preferred  Stock and Series C
Preferred  Stock  (consenting  together as a class on an  as-converted-to-Common
Stock basis) then outstanding.

                  (g) Notwithstanding  anything in Section 2(c), (d), (e) or (f)
to the  contrary,  in the event of the  closing  of a  transaction  on or before
September 30, 1999 with  MessageMedia,  Inc.  pursuant to which the  outstanding
securities  of the Company shall be exchanged  for  securities of  MessageMedia,
Inc. and the corporation  shall become a subsidiary of  MessageMedia,  Inc. (the
"MM Merger"),  any securities  received by the holders of the Series A Preferred
Stock,  Series B Preferred  Stock,  Series C Preferred Stock and/or Common Stock
shall  be  valued  as  set  forth  in the  Agreement  and  Plan  of  Merger  and
Reorganization  entered  into by the  corporation  and  Message  Media,  Inc. in
connection with the MM Merger (the "MM Merger



                                      -4-
<PAGE>

Agreement"),  and the  provisions  in Section  2(c),  (d), (e) and (f) shall not
apply in connection with the MM Merger.

              3. Conversion. The holders of the Series A Preferred Stock, Series
B Preferred Stock and Series C Preferred  Stock shall have conversion  rights as
follows (the "Conversion Rights"):

                  (a) Right to Convert.  Each share of Series A Preferred Stock,
Series B Preferred Stock and Series C Preferred  Stock shall be convertible,  at
the option of the holder thereof, at any time after the date of issuance of such
share, at the office of this  corporation or any transfer agent for such series,
into such number of fully paid and  nonassessable  shares of Common  Stock as is
determined  by  dividing  the  Original  Issue  Price  for  such  series  by the
Conversion  Price at the time in effect for such share.  The initial  Conversion
Price for each series of Preferred  Stock shall be the Original  Issue Price for
such  series.  Any  declared  but  unpaid  dividends  payable  upon the Series A
Preferred Stock,  Series B Preferred Stock and/or Series C Preferred Stock shall
be paid to the  holders  thereof  within 10 days  following  conversion  of such
shares  of  Series A  Preferred  Stock,  Series B  Preferred  Stock or  Series C
Preferred Stock.

                  (b)  Automatic  Conversion.  Each share of Series A  Preferred
Stock,   Series  B  Preferred   Stock,   and  Series  C  Preferred  Stock  shall
automatically  be converted into shares of Common Stock at the Conversion  Price
at the time in effect for such series of Preferred  Stock,  immediately upon the
earlier of (i) the consummation of the corporation's sale of its Common Stock in
a bona fide, firm commitment  underwriting pursuant to a registration  statement
under the Securities Act of 1933, as amended,  which results in aggregate  gross
cash  proceeds  to this  corporation  in excess of  $15,000,000  and the  public
offering  price of which is not less than $5.00 per share  (adjusted  to reflect
subsequent  stock  dividends,   stock  splits  or   recapitalizations)  or  (ii)
immediately prior to the closing of the MM Merger.

                  (c)  Mechanics  of  Conversion.  Before any holder of Series A
Preferred  Stock,  Series B Preferred Stock or Series C Preferred Stock shall be
entitled to convert the same into shares of Common Stock, he shall surrender the
certificate  or  certificates  therefor,  duly  endorsed,  at the office of this
corporation  or of any transfer  agent for such series of Preferred  Stock,  and
shall give written notice by mail,  postage prepaid,  to this corporation at its
principal  corporate  office,  stating  therein  the name or names in which  the
certificate or  certificates  for shares of Common Stock are to be issued.  This
corporation shall, as soon as practicable thereafter,  issue and deliver at such
office  to  such  holder,  or to the  nominee  or  nominees  of such  holder,  a
certificate  or  certificates  for the number of shares of Common Stock to which
such holder shall be entitled as aforesaid.  Such conversion  shall be deemed to
have been made  immediately  prior to the close of  business on the date of such
surrender of the shares to be converted,  and the person or persons  entitled to
receive  the  shares of Common  Stock  issuable  upon such  conversion  shall be
treated  for all  purposes  as the record  holder or  holders of such  shares of
Common  Stock  as of such  date.  If the  conversion  is in  connection  with an
underwritten offering of securities registered pursuant to the Securities Act of
1933, as amended,  the conversion will be conditioned  upon the closing with the
underwriter  of the  sale  of  securities  pursuant  to  such  offering,  unless
otherwise designated in writing by the holders of such Series A


                                      -5-
<PAGE>


Preferred  Stock,  Series B Preferred Stock or Series C Preferred Stock in which
event the  person(s)  entitled to receive the Common  Stock  issuable  upon such
conversion of such  Preferred  Stock shall not be deemed to have  converted such
Preferred  Stock  until  immediately  prior  to the  closing  of  such  sale  of
securities.

                  (d)  Conversion  Price  Adjustments  of Preferred  Stock.  The
Conversion  Price of the Series B Preferred  Stock and Series C Preferred  Stock
shall be subject to adjustment from time to time as follows:

                       (i) (A) If the  corporation,  at any time or from time to
time after February 27, 1998 (the "Purchase  Date"),  shall issue any Additional
Stock (as defined below) without  consideration or for a consideration per share
less than the  Conversion  Price for the  Series B  Preferred  Stock or Series C
Preferred Stock in effect  immediately  prior to the issuance of such Additional
Stock,  the  Conversion  Price  for the  Series B  Preferred  Stock or  Series C
Preferred  Stock,  as  applicable,  in  effect  immediately  prior to each  such
issuance shall forthwith be adjusted to a price  determined by multiplying  such
Conversion  Price by a fraction,  the  numerator of which shall be the number of
shares of Common Stock  outstanding  immediately prior to such issuance plus the
number of shares of Common Stock which the aggregate  consideration  received by
the  corporation  for the total number of shares of  Additional  Stock so issued
would purchase at such Conversion  Price,  and the denominator of which shall be
the  number  of shares of Common  Stock  outstanding  immediately  prior to such
issuance plus the number of such shares of Additional Stock so issued;  provided
that for the purposes of this  subsection,  all shares of Common Stock  issuable
upon   conversion  of  outstanding   Preferred  Stock  shall  be  deemed  to  be
outstanding,  and immediately after any Additional Stock is deemed issued,  such
Additional Stock shall be deemed to be outstanding.

                       (B) No adjustment of the Conversion  Price for the Series
B Preferred  Stock or Series C  Preferred  Stock shall be made in an amount less
than one cent per share, provided that any adjustments which are not required to
be made by reason of this sentence shall be carried  forward and shall be either
taken into account in any subsequent  adjustment  made prior to 3 years from the
date of the event giving rise to the adjustment being carried forward,  or shall
be made at the end of 3 years  from the  date of the  event  giving  rise to the
adjustment being carried  forward.  Except to the limited extent provided for in
subsections  (E)(3) and (E)(4),  no adjustment of such Conversion Price pursuant
to this subsection 3(d) shall have the effect of increasing the Conversion Price
above the Conversion Price in effect immediately prior to such adjustment.

                       (C) In the case of the issuance of Common Stock for cash,
the consideration  shall be deemed to be the amount of cash paid therefor before
deducting any reasonable discounts,  commissions or other expenses allowed, paid
or incurred by this  corporation for any underwriting or otherwise in connection
with the issuance and sale thereof.

                       (D) In the case of the issuance of the Common Stock for a
consideration in whole or in part other than cash, the consideration  other than
cash shall be




                                      -6-
<PAGE>

deemed to be the fair value  thereof  as  determined  by the Board of  Directors
irrespective of any accounting treatment.

                       (E) In the case of the issuance,  whether  before,  on or
after the  Purchase  Date,  of options to  purchase or rights to  subscribe  for
Common Stock,  securities by their terms  convertible  into or exchangeable  for
Common Stock or options to purchase or rights to subscribe for such  convertible
or  exchangeable  securities  (which are not  excluded  from the  definition  of
Additional Stock), the following provisions shall apply:

                           (1) The aggregate  maximum number of shares of Common
Stock  deliverable  upon  exercise  of such  options  to  purchase  or rights to
subscribe  for Common Stock shall be deemed to have been issued at the time such
options or rights were issued and for a consideration equal to the consideration
(determined in the manner provided in subsections 3(d)(i)(C) and 3(d)(i)(D)), if
any,  received by the  corporation  upon the  issuance of such options or rights
plus the  minimum  purchase  price  provided  in such  options or rights for the
Common Stock covered thereby.

                           (2) The aggregate  maximum number of shares of Common
Stock  deliverable upon conversion of or in exchange for any such convertible or
exchangeable securities or upon the exercise of options to purchase or rights to
subscribe  for  such  convertible  or  exchangeable  securities  and  subsequent
conversion  or exchange  thereof shall be deemed to have been issued at the time
such  securities  were  issued or such  options or rights  were issued and for a
consideration  equal to the  consideration,  if any, received by the corporation
for any such  securities  and  related  options  or rights  (excluding  any cash
received  on  account  of  accrued  interest  or  accrued  dividends),  plus the
additional  consideration,  if any, to be received by the  corporation  upon the
conversion or exchange of such securities or the exercise of any related options
or  rights  (the  consideration  in each  case to be  determined  in the  manner
provided in subsections 3(d)(i)(C) and 3(d)(i)(D)).

                           (3) In the  event  of any  change  in the  number  of
shares of Common Stock deliverable or any increase in the consideration  payable
to this  corporation  upon exercise of such options or rights or upon conversion
of or in exchange for such  convertible or exchangeable  securities,  including,
but not limited to, a change resulting from the antidilution provisions thereof,
the Conversion  Price of the Series B Preferred  Stock and/or Series C Preferred
Stock obtained with respect to the  adjustment  which was made upon the issuance
of such options,  rights or  securities,  and any subsequent  adjustments  based
thereon,  shall be recomputed to reflect such change,  but no further adjustment
shall be made for the actual  issuance  of Common  Stock or any  payment of such
consideration  upon the exercise of any such options or rights or the conversion
or exchange of such securities.

                           (4)  Upon  the  expiration  of any  such  options  or
rights,  the  termination  of any such  rights to  convert  or  exchange  or the
expiration of any options or rights related to such  convertible or exchangeable
securities, the Conversion Price of the Series B Preferred Stock and/or Series C
Preferred Stock obtained with respect to the adjustment  which was made upon the
issuance of such options,  rights or securities or options or rights



                                      -7-
<PAGE>

related to such securities,  and any subsequent adjustments based thereon, shall
be  recomputed  to reflect  the  issuance of only the number of shares of Common
Stock  actually  issued upon the  exercise of such  options or rights,  upon the
conversion or exchange of such securities or upon the exercise of the options or
rights  related to such  securities.  Upon the expiration of any such options or
rights,  the  termination  of any such  rights to  convert  or  exchange  or the
expiration of any options or rights related to such  convertible or exchangeable
securities,  only the number of shares of Common Stock actually  issued upon the
exercise  of such  options or rights,  upon the  conversion  or exchange of such
securities  or upon the  exercise  of the  options  or  rights  related  to such
securities shall continue to be deemed to be issued.

                           (5) All Common Stock deemed  issued  pursuant to this
subsection  3(d)(i)(E) shall be considered issued only at the time of its deemed
issuance and any actual  issuance of such stock shall not be an actual  issuance
or a deemed issuance of the  corporation's  Common Stock under the provisions of
this Section 3.

                       (ii)  "Additional  Stock" shall mean any shares of Common
Stock issued (or deemed to have been issued  pursuant to subsection  3(d)(i)(E))
by this  corporation  on or after the Purchase Date other than shares of capital
stock issued or issuable (or deemed to have been issued  pursuant to  subsection
(d)(i)(E)):

                           (A) pursuant to a transaction described in subsection
3(e) hereof,

                           (B) to officers, directors, employees and consultants
of this  corporation  pursuant to a stock option plan or agreement or restricted
stock plan or  agreement,  and in all cases  approved by the  directors  of this
corporation,

                           (C) in  connection  with  capital  equipment  leases,
technology  acquisitions  and other  comparable  transactions,  and in all cases
approved by the Board of Directors,

                           (D) to lessors or  institutional  or other lenders or
otherwise in connection with bank or institutional loans,

                           (E) upon conversion of the Series A Preferred  Stock,
Series B Preferred Stock and/or Series C Preferred Stock,

                           (F)  in a bona  fide,  firm  commitment  underwriting
registered  under the  Securities  Act of 1933,  as  amended,  which  results in
aggregate  gross  proceeds to the  corporation  in excess of  $15,000,000  and a
public  offering  price  which is not less than  $5.00 per  share  (adjusted  to
reflect subsequent stock dividends, stock splits, or recapitalizations), or



                                      -8-
<PAGE>

                           (G) pursuant to that certain Series C Preferred Stock
Purchase Agreement,  dated on or about February 27, 1998, as may be amended (the
"Series C Purchase Agreement").

                  (e) Stock  Dividends,  Combinations  or  Subdivisions.  In the
event the corporation should at any time or from time to time after the Purchase
Date fix a record date for the  effectuation  of a split or  subdivision  of the
outstanding  shares of Common  Stock or the  determination  of holders of Common
Stock entitled to receive a dividend or other distribution payable in additional
shares of  Common  Stock or other  securities  or rights  convertible  into,  or
entitling  the holder  thereof to receive  directly  or  indirectly,  additional
shares of Common Stock (hereinafter  referred to as "Common Stock  Equivalents")
without payment of any consideration by such holder for the additional shares of
Common Stock or the Common Stock Equivalents (including the additional shares of
Common Stock  issuable upon  conversion or exercise  thereof),  then, as of such
record date or the date of such dividend  distribution,  split or subdivision if
no record date is fixed), the Conversion Prices of the Series A Preferred Stock,
Series B  Preferred  Stock and Series C Preferred  Stock shall be  appropriately
decreased so that the number of shares of Common Stock issuable on conversion of
each share of such series shall be increased in  proportion  to such increase of
the  aggregate of shares of Common Stock  outstanding  and those  issuable  with
respect to such Common Stock Equivalents.

                  If the  number of shares of Common  Stock  outstanding  at any
time after the Purchase  Date is decreased by a combination  of the  outstanding
shares of Common Stock, then, following the record date of such combination, the
Conversion Price for the Series A Preferred Stock,  Series B Preferred Stock and
Series C Preferred Stock shall be appropriately  increased so that the number of
shares of Common Stock issuable on conversion of each share of such series shall
be decreased in proportion to such decrease in outstanding shares.

                  (f) Other  Distributions.  In the event this corporation shall
declare a  distribution  payable in  securities of other  persons,  evidences of
indebtedness issued by this corporation or other persons, assets (excluding cash
dividends) or options or rights to purchase any such  securities or evidences of
indebtedness,  then, in each such case for the purpose of this Section 3(f), the
holders of the Series A Preferred  Stock,  Series B Preferred Stock and Series C
Preferred  Stock  shall  be  entitled  to a  proportionate  share  of  any  such
distribution  as though  they were the holders of the number of shares of Common
Stock of the  corporation  into which their shares of Series A Preferred  Stock,
Series  B  Preferred  Stock or  Series  C  Preferred  Stock,  respectively,  are
convertible as of the record date fixed for the  determination of the holders of
Common Stock of the corporation entitled to receive such distribution.

                  (g)  Recapitalizations.  If at any  time or from  time to time
there shall be a recapitalization  of the Common Stock (other than a subdivision
or  combination  of shares  provided  for in this Section 3 or merger or sale of
assets  transaction  provided for in Section 2) provision  shall be made so that
the holders of the Series A Preferred Stock, Series B Preferred Stock and Series
C Preferred  Stock shall  thereafter  be entitled to receive upon  conversion of
such  series the number of shares of stock or other  securities  or  property of
this  corporation  or otherwise,  to which a holder of Common Stock  deliverable
upon conversion would have been




                                      -9-
<PAGE>

entitled  on such  recapitalization.  In any such case,  appropriate  adjustment
shall  be made in the  application  of the  provisions  of this  Section  3 with
respect to the rights of the holders of the Series A Preferred  Stock,  Series B
Preferred Stock and Series C Preferred Stock after the  recapitalization  to the
end  that  the  provisions  of  this  Section  3  (including  adjustment  of the
Conversion  Prices  then in effect  and the  number of shares  purchasable  upon
conversion  of such  series)  shall be  applicable  after  that  event as nearly
equivalent as may be practicable.

                  (h) No  Impairment.  This  corporation  will not,  through any
reorganization,  recapitalization,  transfer of assets,  consolidation,  merger,
dissolution, issue or sale of securities or any other voluntary action, avoid or
seek to avoid the  observance or  performance of any of the terms to be observed
or performed hereunder by this corporation,  but will at all times in good faith
assist in the  carrying out of all the  provisions  of this Section 3 and in the
taking of all such action as may be necessary or appropriate in order to protect
the Conversion  Rights of the holders of the Series A Preferred Stock,  Series B
Preferred Stock and Series C Preferred Stock against impairment.

                  (i) No Fractional Shares and Certificate as to Adjustments.

                       (i) No fractional  shares shall be issued upon conversion
of the Series A Preferred Stock,  Series B Preferred Stock or Series C Preferred
Stock, and the number of shares of Common Stock to be issued shall be rounded to
the nearest whole share. Whether or not fractional shares are issuable upon such
conversion  shall be  determined  on the basis of the total  number of shares of
Series A Preferred Stock,  Series B Preferred Stock or Series C Preferred Stock,
as applicable,  that the holder is at the time  converting into Common Stock and
the number of shares of Common Stock issuable upon such aggregate conversion.

                       (ii)  Upon  the   occurrence   of  each   adjustment   or
readjustment  of any  Conversion  Price of Series A  Preferred  Stock,  Series B
Preferred  Stock or Series C Preferred  Stock  pursuant to this  Section 3, this
corporation,   at  its  expense,  shall  promptly  compute  such  adjustment  or
readjustment in accordance with the terms hereof and prepare and furnish to each
holder  of  Series A  Preferred  Stock,  Series B  Preferred  Stock or  Series C
Preferred Stock, as applicable,  a certificate  setting forth such adjustment or
readjustment  and  showing in detail the facts  upon  which such  adjustment  or
readjustment is based.  This corporation  shall, upon the written request at any
time of any holder of Series A  Preferred  Stock,  Series B  Preferred  Stock or
Series C Preferred Stock, furnish or cause to be furnished to such holder a like
certificate  setting  forth  (A)  such  adjustment  and  readjustment,  (B)  the
Conversion  Price at the time in effect,  and (C) the number of shares of Common
Stock and the  amount,  if any,  of other  property  which at the time  would be
received upon the  conversion of a share of Series A Preferred  Stock,  Series B
Preferred Stock or Series C Preferred Stock, as applicable.

                  (j) Notices of Record Date. In the event of any taking by this
corporation  of a record  of the  holders  of any  class of  securities  for the
purpose of  determining  the  holders  thereof  who are  entitled to receive any
dividend  (other  than a cash  dividend)  or other  distribution,  any  right to
subscribe for, purchase or otherwise acquire any shares of stock of any class or
any  other  securities  or  property,  or  to  receive  any  other  right,  this
corporation  shall mail



                                      -10-
<PAGE>

to each holder of Series A Preferred Stock, Series B Preferred Stock or Series C
Preferred  Stock,  as  applicable,  at least 20 days prior to the date specified
therein,  a notice  specifying  the date on which any such record is to be taken
for the  purpose of such  dividend,  distribution  or right,  and the amount and
character of such dividend, distribution or right.

                  (k)  Reservation  of  Stock  Issuable  Upon  Conversion.  This
corporation  shall at all times reserve and keep available out of its authorized
but unissued  shares of Common  Stock  solely for the purpose of  effecting  the
conversion  of the shares of the Series A  Preferred  Stock,  Series B Preferred
Stock and Series C Preferred  Stock such number of its shares of Common Stock as
shall  from  time  to  time  be  sufficient  to  effect  the  conversion  of all
outstanding shares of the Series A Preferred Stock, Series B Preferred Stock and
Series C  Preferred  Stock;  and if at any time the  number  of  authorized  but
unissued shares of Common Stock shall not be sufficient to effect the conversion
of all then  outstanding  shares  of the  Series  A  Preferred  Stock,  Series B
Preferred Stock and Series C Preferred Stock, in addition to such other remedies
as shall be available to the holder of such Preferred  Stock,  this  corporation
will take such  corporate  action as may,  in the  opinion  of its  counsel,  be
necessary to increase its authorized but unissued shares of Common Stock to such
number of shares as shall be sufficient for such purposes.

                  (l) Notices.  Any notice  required by the  provisions  of this
Section 3 to be given to the  holders  of shares  of Series A  Preferred  Stock,
Series B Preferred  Stock and Series C Preferred  Stock shall be deemed given if
deposited in the United  States mail,  postage  prepaid,  and  addressed to each
holder of record at his address appearing on the books of this corporation.

              4.  Voting  Rights.  Each  holder of shares of Series A  Preferred
Stock, Series B Preferred Stock or Series C Preferred Stock shall have the right
to one vote for each share of Common Stock into which such shares of such series
of Preferred Stock could then be converted (with any factional share  determined
on an aggregate  conversion basis being rounded to the nearest whole share), and
with respect to such vote,  such holder shall have full voting rights and powers
equal to the voting rights and powers of the holders of Common Stock,  and shall
be  entitled,   notwithstanding   any  provision   hereof,   to  notice  of  any
shareholders'  meeting in accordance with the by-laws of this  corporation,  and
shall be entitled to vote,  together with holders of Common Stock,  with respect
to any question upon which holders of Common Stock have the right to vote.

              5. Class Votes.

                  (a) So long as any shares of Preferred Stock are  outstanding,
the  corporation  shall not,  without  first  obtaining  the approval by vote or
written  consent,  in the manner  provided  by law, of the holders of at least a
majority of the total number of shares of Preferred  Stock  outstanding,  voting
together as a single class: (i) alter or change in any adverse manner any of the
powers, preferences,  privileges or rights of the Preferred Stock, (ii) increase
or decrease the authorized  number of shares of Preferred Stock;  (iii) increase
the  authorized  number of shares of Common Stock;  (iv) create any new class or
series  of stock  having a  preference  over or on a  parity  with the  Series A
Preferred  Stock,  Series B  Preferred  Stock or Series C  Preferred



                                      -11-
<PAGE>

Stock  upon  liquidation  or in  respect  of  voting,  dividend,  conversion  or
redemption  rights;  or (v) cause the merger or consolidation of the corporation
with or into any other  corporation or  corporations,  or the sale,  transfer or
lease  (other  than a pledge  or grant of a  security  interest  to a bona  fide
lender) of all or substantially  all of the assets of the corporation,  in which
the  shareholders  of  the  corporation   immediately   preceding  such  merger,
consolidation, transfer or lease directly or indirectly own less than 50% of the
voting stock of the surviving entity.

                  (b) So long as any  shares  of  Series  B  Preferred  Stock or
Series C Preferred Stock are  outstanding,  the corporation  shall not,  without
first obtaining the approval by vote or written consent,  in the manner provided
by law, of the holders of at least eighty  percent  (80%) of the total number of
shares of Series B  Preferred  Stock and Series C Preferred  Stock  outstanding,
voting  together  as a  class  on an  as-converted-to-Common  Stock  basis:  (i)
increase or decrease the authorized  number of members of the Board of Directors
of the  corporation  or otherwise  amend  Section 6 below,  or (ii)  increase or
decrease the authorized number of shares of Series B Preferred Stock or Series C
Preferred Stock.

                  (c) So long as any  shares  of  Series C  Preferred  Stock are
outstanding,  the corporation shall not, without first obtaining the approval by
vote or written  consent,  in the manner  provided  by law, of the holders of at
least a  majority  of the total  number of  shares of Series C  Preferred  Stock
outstanding,  voting  as a  class  on  an  as-converted-to-Common  Stock  basis,
increase  the  authorized  number of  members of the Board of  Directors  of the
corporation to a number greater than six.

                  (d) So long as any  shares  of  Series  B  Preferred  Stock or
Series C Preferred Stock are  outstanding,  the corporation  shall not,  without
first obtaining the approval by vote or written consent,  in the manner provided
by law,  of the  holders  of at least  seventy-five  percent  (75%) of the total
number of  shares of Series B  Preferred  Stock  and  Series C  Preferred  Stock
outstanding,  voting  together  as a class  on an  as-converted-to-Common  Stock
basis, issue any shares of Series B Preferred Stock or Series C Preferred Stock,
except for the shares of Series B Preferred  Stock and Series C Preferred  Stock
issued as of the  Purchase  Date,  shares of Series C Preferred  Stock  issuable
pursuant  to the Series C Purchase  Agreement  and shares of Series C  Preferred
Stock issuable upon exercise of warrants outstanding as of the Purchase Date.

              6. Board of Directors.

                  (a) The Board of Directors of the corporation shall consist of
six members.  Four members  shall be elected by (and may only be removed by) the
holders of the Series B  Preferred  Stock and Series C Preferred  Stock,  voting
together as a class on an  as-converted-to-Common  Stock basis. One member shall
be elected by (and may only be removed by) the holders of Common Stock voting as
a separate  class.  One member  shall be elected by (and may only be removed by)
the holders of the Series A Preferred Stock, Series B Preferred Stock and Series
C Preferred Stock, voting together as a class on an as-converted-to-Common Stock
basis.



                                      -12-
<PAGE>

                  (b) If  the  office  of  any  director  becomes  vacant,  such
director's replacement shall be elected by the class (or classes, as applicable)
of shares of which such director is the representative.

                  (c) Subsection 6(a) shall terminate and be of no further force
or effect  immediately  upon the consummation of the  corporation's  sale of its
Common Stock in a bona fide, firm commitment  underwriting  registered under the
Securities Act of 1933, as amended, which results in aggregate gross proceeds to
the  corporation in excess of $15,000,000 and the public offering price of which
is not  less  than  $5.00  per  share  (adjusted  to  reflect  subsequent  stock
dividends, stock splits or recapitalizations).

              7. Status of Converted  Stock. In the event any shares of Series A
Preferred  Stock,  Series B Preferred Stock or Series C Preferred Stock shall be
converted  pursuant  to  Section 3 hereof,  the  shares  so  converted  shall be
canceled  and shall not be  issuable  by the  corporation,  and the  Articles of
Incorporation of this corporation  shall be appropriately  amended to effect the
corresponding reduction in the corporation's authorized capital stock.

              8. Repurchase of Shares.  In connection  with  repurchases by this
corporation of its Common Stock  pursuant to its agreements  with certain of the
holders thereof  providing for such  repurchases in the event of the termination
of the status of such  holder as an  employee,  director  or  consultant  to the
corporation,  each holder of Preferred  Stock shall be deemed to have consented,
for purposes of Sections 502, 503 and 506 of the California General  Corporation
Law, to distributions made by the corporation with respect to such repurchases.

         (C) Common Stock.

              1. Dividend Rights.  Subject to the prior rights of holders of all
classes of stock at the time  outstanding  having prior rights as to  dividends,
the  holders of the Common  Stock  shall be  entitled  to  receive,  when and as
declared by the Board of Directors, out of any assets of the corporation legally
available  therefor,  such dividends as may be declared from time to time by the
Board of Directors.

              2.  Liquidation  Rights.  Upon  the  liquidation,  dissolution  or
winding  up  of  the  corporation,  the  assets  of  the  corporation  shall  be
distributed as provided in Section 2 of Division (B) of this Article III.

              3. Redemption. The Common Stock is not redeemable.

              4. Voting Rights. Each holder of shares of Common Stock shall have
the right to one vote for each such  share,  and shall be  entitled to notice of
any shareholders meeting in accordance with the Bylaws of this corporation,  and
shall be  entitled  to vote  upon  such  matters  and in such  manner  as may be
provided by law.



                                      -13-
<PAGE>

                                   ARTICLE IV

         (A) Limitation of Directors,  Liability. The liability of the directors
of the  corporation  for monetary  damages  shall be  eliminated  to the fullest
extent permissible under California law.

         (B)  Indemnification of Corporate Agents. The corporation is authorized
to  provide  indemnification  of  agents  (as  defined  in  Section  317  of the
California Corporations Code) to the fullest extent permissible under California
law.

         (C) Repeal or  Modification.  Any amendment,  repeal or modification of
any  provision  of this  Article  IV shall  not  adversely  affect  any right or
protection  of an  agent  of  this  corporation  existing  at the  time  of such
amendment, repeal or modification."

                                                   *     *    *

         THREE:  The  foregoing  amendment  and  restatement  of the Articles of
Incorporation  of the corporation has been approved by the Board of Directors of
this corporation.

         FOUR:  The  foregoing  amendment  and  restatement  of the  Articles of
Incorporation  of the  corporation  was approved by the holders of the requisite
number of shares of this  corporation in accordance  with Section 902 and 903 of
the California  General  Corporation Law. The total number of outstanding shares
entitled to vote with respect to the foregoing amendment was 1,839,174 shares of
Common Stock,  1,000,000 shares of Series A Preferred Stock, 2,002,750 shares of
Series B Preferred Stock, and 19,462,810 shares of Series C Preferred Stock. The
number of shares voting in favor of the foregoing  amendment equaled or exceeded
the vote required, such required vote being a majority of the outstanding shares
of   Common   Stock   and    Preferred    Stock,    voting    together   on   an
as-converted-to-Common  Stock  basis,  a majority of the  outstanding  shares of
Preferred Stock, voting as a class on an as-converted-to-Common  Stock basis and
a majority of the outstanding shares of Common Stock, voting as a class.



                                      -14-
<PAGE>

         The  undersigned  certify  under penalty of perjury that they have read
the  foregoing  Amended  and  Restated  Articles of  Incorporation  and know the
contents thereof, and that the statements therein are true.

         Executed at Menlo Park, California, August ___, 1999.





                                             -----------------------------------
                                             Frank Sammann, President


                                             -----------------------------------
                                             Patrick McNenny, Secretary










                                      -15-
<PAGE>




                                    EXHIBIT D

                 FORM OF SECURITYHOLDER REPRESENTATION STATEMENT
















                                       3.

<PAGE>



                     SECURITYHOLDER REPRESENTATION STATEMENT

         THIS SECURITYHOLDER REPRESENTATION STATEMENT (the "Representation
Statement")  is being  executed  and  delivered  as of July  ___,  1999,  by the
undersigned  Shareholder  of  Decisive  Technology  Corporation,   a  California
corporation  (the  "Company"),  to and in  favor  of,  and for the  benefit  of,
MessageMedia, Inc., a Delaware corporation ("MessageMedia").

                                    RECITALS

         A. The  undersigned  shareholder  of the  Company  (the  "Shareholder")
represents to MessageMedia that he or she owns, or has the right to acquire, the
number of shares  of the  common  stock,  $0.01  par  value  per  share,  and or
Preferred  Stock,  $0.01 par value per share, of the Company set forth below the
Shareholder's signature at the end of this Representation Statement. Said shares
are referred to in this Representation Statement as the "Shares."

         B.  Pursuant to an Agreement  and Plan of  Reorganization,  dated as of
July _____,  1999 (the  "Reorganization  Agreement"),  among  MessageMedia,  MM2
Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of
MessageMedia ("Merger Sub"), the Company, and the Securityholders'  Agent, it is
contemplated  that Merger Sub will merge into the Company  (the merger of Merger
Sub into the Company being referred to in this  Representation  Statement as the
"Merger").  Upon the consummation of the Merger, the Company's  shareholders are
to receive  shares of common  stock of  MessageMedia  ("MessageMedia  Stock") in
exchange for their shares of common  stock and  preferred  stock of the Company,
and the  Company  is to  become  a  wholly  owned  subsidiary  of  MessageMedia.
Accordingly,  it is  contemplated  that the  Shareholder  will receive shares of
MessageMedia Stock in the Merger.

         C.  Capitalized  terms used in this  Representation  Statement have the
meaning  ascribed to them in the  Reorganization  Agreement  and the Plan unless
otherwise stated herein.

                                  CERTIFICATION

         1.   ACCREDITED   INVESTOR   STATUS  AND   APPOINTMENT  OF  SHAREHOLDER
REPRESENTATIVE.  The undersigned Shareholder as indicated below hereby certifies
that he or she:

         (Check appropriate box)

         [_] is an "Accredited  Investor" as such term is defined under Rule 501
         of the Securities Act of 1933, as amended (the "Securities Act"), or

         [_]  appoints  [______________]  to  serve  as his  or  her  "Purchaser
         Representative"  (within  the  meaning  ascribed  under Rule 501 of the
         Securities   Act)  in   connection   with   the   negotiation   of  the
         Reorganization   Agreement   and  the   transactions   and   agreements
         contemplated thereby.



                                       1.
<PAGE>

              (a) The  Shareholder  is the  holder and  beneficial  owner of the
Shares  and has  good  and  valid  title to the  Shares  free  and  clear of any
Encumbrances. The Shares are the only shares of the capital stock of the Company
held by the Shareholder.  The Shareholder has the ability to vote (to the extent
such Shares may be voted in accordance with the Company's charter documents) all
of the Shares at any meeting of the  shareholders of the Company,  or by written
consent  in lieu of any such  meeting.  Other  than  the  Voting  Agreement,  if
applicable,  the  Shareholder  has not appointed or granted any proxy or entered
into any agreement,  contract,  commitment or understanding  with respect to the
voting of any of the Shares.

              (b) The  Shareholder  has the  absolute  and  unrestricted  right,
power, authority and capacity to enter into, execute, deliver and perform all of
his or her obligations  under the  Registration  Rights Agreement and the Escrow
Agreement.

              (c) The Registration  Rights Agreement and the Escrow Agreement to
which  the  Shareholder  is or is to  become a party  (i) has been (or will when
executed  by the  Securityholders'  Agent be) duly and  validly  executed by the
Securityholder's  Agent,  and (ii)  constitutes  (or will when  executed  by the
Securityholders'  Agent  constitute)  a  valid  and  binding  obligation  of the
Shareholder,  enforceable  against the Shareholder in accordance with its terms,
subject to laws of general  application  relating to bankruptcy,  insolvency and
the  relief of  debtors,  and to rules of law  governing  specific  performance,
injunctive relief and other equitable remedies.

              (d)  Neither  the  execution,   delivery  or  performance  of  the
Registration  Rights  Agreement or the Escrow Agreement to which the Shareholder
is or is to become a party,  nor the  consummation  of the  Merger or any of the
other transactions  contemplated by the Reorganization  Agreement, will directly
or  indirectly:  (i) result in any violation or breach of any agreement or other
instrument to which the  Shareholder  is a party or by which the  Shareholder is
bound;  or (ii)  result in a  violation  of any law,  rule,  regulation,  order,
judgment or decree to which the Shareholder or any of the Shares is subject.  No
authorization,  consent or approval  of, or notice to, any Person is required to
be  obtained  or given by the  Shareholder  in  connection  with the  execution,
delivery or  performance  of the  Registration  Rights  Agreement  or the Escrow
Agreement.

              (e) There is no  proceeding  by or before  any  Governmental  Body
pending  or,  to  the  knowledge  of the  Shareholder,  threatened  against  the
Shareholder that challenges or would challenge the execution and delivery of the
Registration  Rights  Agreement and the Escrow Agreement or the taking of any of
the  actions  required  to be taken by the  Shareholder  under the  Registration
Rights Agreement and the Escrow Agreement.

         3. SECURITIES ISSUANCE REPRESENTATIONS AND WARRANTIES.  The Shareholder
represents, warrants and certifies to MessageMedia as follows:

              (a) The Shareholder is aware (i) that the MessageMedia Stock to be
issued to the  Shareholder  in the Merger will not be registered and will not be
issued pursuant to a registration statement under the Securities Act of 1933, as
amended  (the "Act"),  but will  instead be issued in reliance on the  exemption
from  registration  set forth in Section  4(2) of the  Securities  Act and/or in
Regulation D under the Securities  Act, and (ii) that neither the Merger nor the




                                       2.
<PAGE>

issuance of such MessageMedia  Stock has been approved or reviewed by the SEC or
by any other Governmental Body.

              (b) The Shareholder is aware that,  because the MessageMedia Stock
to be issued in the Merger will not be registered under the Securities Act, such
MessageMedia Stock cannot be resold unless such MessageMedia Stock is registered
under the Securities Act or unless an exemption from  registration is available.
The  Shareholder  is also aware that:  (i) except  pursuant to the  Registration
Rights  Agreement,  MessageMedia  is under no obligation to file a  registration
statement with respect to the MessageMedia Stock to be issued to the Shareholder
in the Merger; and (ii) the provisions of Rule 144 under the Securities Act will
permit resale of the  MessageMedia  Stock to be issued to the Shareholder in the
Merger only under limited  circumstances,  and such  MessageMedia  Stock must be
held by the  Shareholder for at least one year before it can be sold pursuant to
Rule 144, assuming  MessageMedia  continues to satisfy the other requirements of
Rule 144.

              (c) The MessageMedia  Stock to be issued to the Shareholder in the
Merger will be acquired by the Shareholder for investment and for his or her own
account,  and  not  with a view  to,  or for  resale  in  connection  with,  any
unregistered distribution thereof.

              (d) The Shareholder  understands  that stop transfer  instructions
will be given to MessageMedia's  transfer agent with respect to the MessageMedia
Stock to be issued to the  Shareholder  in the  Merger  and that  there  will be
placed on the certificate or certificates  representing such MessageMedia  Stock
legends  identical or similar in effect to the following  legend  (together with
any other legend or legends  required by  applicable  state  securities  laws or
otherwise):

         "THE SHARES  REPRESENTED  BY THIS  CERTIFICATE  HAVE NOT BEEN
         REGISTERED  UNDER THE  SECURITIES ACT OF 1933 (THE "ACT") AND
         MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED,  ASSIGNED,
         PLEDGED OR HYPOTHECATED  UNLESS  REGISTERED  UNDER THE ACT OR
         UNLESS AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
         ACT IS AVAILABLE."

         THE  SECURITIES   REPRESENTED  BY  THIS  CERTIFICATE  MAY  BE
         TRANSFERRED   ONLY  IN   ACCORDANCE   WITH   CERTAIN   VOLUME
         LIMITATIONS  PURSUANT TO THE TERMS OF A CERTAIN AGREEMENT AND
         PLAN OF MERGER AND REORGANIZATION DATED JULY __, 1999, A COPY
         OF WHICH WILL BE PROVIDED  TO THE HOLDER OF THIS  CERTIFICATE
         UPON REQUEST.

              (e) The  Shareholder  has  received  and  examined  MessageMedia's
Annual Report on Form 10-K for the year ended  December 31, 1998;  the Company's
Information  Statement;  and  MessageMedia's  Quarterly Report on  Form 10-Q for
the quarter ended March 31, 1999.



                                       3.
<PAGE>

         4.  SHAREHOLDER   REPRESENTATIONS   AND  WARRANTIES.   The  Shareholder
represents, warrants and certifies to MessageMedia as follows:

              (a) The  Shareholder,  who  checked the second box in Section 1 of
this  agreement  thereby  indicating  that  he or  she  is  not  an  "Accredited
Investor", acknowledges that the Portola Group, Inc. has served as the Purchaser
Representative  of such  Shareholder in connection  with the  negotiation of the
Reorganization Agreement and this Representation Statement.

              (b)  Either  alone or with the  assistance  of such  Shareholder's
Purchaser  Representative and professional  advisors,  that such Shareholder has
been given the  opportunity:  (i) to ask  questions  of, and to receive  answers
from,  persons acting on behalf of the Company and  MessageMedia  concerning the
terms and conditions of the Merger and the contemplated issuance of MessageMedia
Stock in the Merger,  and the  business,  properties,  prospects  and  financial
condition  of the Company and  MessageMedia;  and (ii) to obtain any  additional
information  (to  the  extent  the  Company  or   MessageMedia   possesses  such
information or is able to acquire it without  unreasonable effort or expense and
without breach of  confidentiality  obligations) that is necessary to verify the
accuracy  of the  information  set  forth  in the  documents,  provided  or made
available to the Shareholder.

              (c)  Either  alone or with the  assistance  of such  Shareholder's
Purchaser   Representative  and  professional  advisors,   such  Shareholder  is
knowledgeable,  sophisticated  and  experienced  in making,  and is qualified to
make, decisions with respect to investments in securities  presenting investment
decisions like that involved in the Shareholder's contemplated investment in the
MessageMedia Stock to be issued in the Merger. The Shareholder understands,  has
fully considered,  and believes that he has been fully apprised of all facts and
circumstances  necessary to permit him to make an informed  decision  regarding,
the risks of acquiring and owning MessageMedia Stock.

         5. RELIANCE.  The Shareholder  acknowledges that MessageMedia will rely
on his or her  representations,  warranties  and  certifications  set  forth  in
Sections 1, 2, 3 and 4 above for purposes of determining  his or her suitability
as an  investor  in  MessageMedia  Stock  and for  purposes  of  confirming  the
availability  of  an  exemption  from  the  registration   requirements  of  the
Securities Act.

         6. PROHIBITIONS AGAINST TRANSFER.  The Shareholder shall not effect any
sale,  transfer or other disposition of any of the MessageMedia Stock that he or
she is to receive in the Merger unless:

              (a) such sale,  transfer or other  disposition has been registered
under the Securities Act;

              (b) such sale, transfer or other disposition is made in conformity
with the  requirements  of Rule 144 under the Securities  Act, as evidenced by a
broker's  letter  and  a  representation  letter  executed  by  the  Shareholder
(satisfactory   in  form  and  content  to   MessageMedia)   stating  that  such
requirements have been met;



                                       4.
<PAGE>

              (c) counsel  reasonably  satisfactory to  MessageMedia  shall have
advised  MessageMedia  in a written  opinion  letter  (satisfactory  in form and
content to  MessageMedia),  upon which  MessageMedia  may rely,  that such sale,
transfer  or other  disposition  will be  exempt  from  registration  under  the
Securities Act; or

              (d) an  authorized  representative  of the SEC shall have rendered
written  advice to the  Shareholder  to the  effect  that the SEC would  take no
action,  or that the  staff of the SEC  would  not  recommend  that the SEC take
action, with respect to such sale, transfer or other disposition,  and a copy of
such written advice and all other related communications with the SEC shall have
been delivered to MessageMedia.

                  [Remainder of page intentionally left blank]





                                       5.
<PAGE>



The Shareholder has executed and delivered this  Representation  Statement as of
the date first written above.



                                  ----------------------------------------------
                                  (Signature)


                                  Name:
                                       -----------------------------------------

                                  Number of Common shares:
                                                          ----------------------

                                  Number of Preferred shares:
                                                             -------------------

                                  State of Residence:
                                                     ---------------------------





                                       6.
<PAGE>



                                    EXHIBIT E

                                CERTAIN EMPLOYEES



Kelley Wood
Peter Murton
Lori Iventosch James
Eleanor Duff
Alex Garbagnati
Ryan Day




                                       4.
<PAGE>




                                    EXHIBIT F

                     FORM OF REGISTRATION RIGHTS AGREEMENT






                                       5.

<PAGE>

                          REGISTRATION RIGHTS AGREEMENT



         THIS  AGREEMENT  OF  REGISTRATION  RIGHTS  ("Agreement")  is made as of
August 16, 1999 between MESSAGEMEDIA,  INC., a Delaware corporation  ("Parent"),
William Blair & Company LLC, and Eric DiBenedetto, as the Securityholders' Agent
(as defined  below) for the  benefit of Holders  (as  defined  below) of capital
stock  of  Decisive  Technology  Corporation,   a  California  corporation  (the
"Company"),  acquiring  shares of Parent Common Stock pursuant to that Agreement
and  Plan  of  Merger  and  Reorganization,  dated  as  of  July  27  1999  (the
"Reorganization  Agreement"),  among  Parent,  the Company  and MM2  Acquisition
Corp., a Delaware  corporation  and  wholly-owned  subsidiary of Parent ("Merger
Sub")  and  in  consideration  of  such  Holders  approving  the  Reorganization
Agreement and the transactions contemplated thereby.


         NOW,   THEREFORE,    in   consideration   of   the   mutual   promises,
representations,   warranties,  covenants  and  conditions  set  forth  in  this
Agreement and in the  Reorganization  Agreement,  the parties  mutually agree as
follows:


                                   SECTION 1

                                  REGISTRATION

         1.1  "HOLDER"  means:  (i) a holder of shares of  capital  stock of the
Company to whom  shares of Common  Stock of Parent are  issued  pursuant  to the
Reorganization   Agreement,   (ii)  the   Escrow   Agent  (as   defined  in  the
Reorganization Agreement), (iii) William Blair & Company LLC with respect to the
shares  of  Common  Stock of  Parent  issued  pursuant  to  Section  1.12 of the
Reorganization  Agreement  or  (iv) a  transferee  to whom  registration  rights
granted  under this  Agreement  are  assigned  pursuant  to Section  6.3 of this
Agreement.

         1.2  "MAJOR  INVESTORS"  shall  mean  those  individuals  and  entities
identified on Exhibit B-2 of the Reorganization Agreement.

         1.3 "REGISTRABLE SECURITIES" means for each Holder the number of shares
of Parent  Common  Stock  issued to such Holder  pursuant to the  Reorganization
Agreement,  and any shares of Parent Common Stock issued in respect thereof as a
result of any stock split, stock dividend, share exchange, merger, consolidation
or similar  recapitalization  (including shares of Parent Common Stock issued to
the Escrow Agent pursuant to Sections 1.8 of the Reorganization  Agreement),  in
each case rounded to the nearest integral amount, and for all Holders the sum of
the Registrable  Securities held by them;  provided,  however,  that Registrable
Securities  shall cease to be  Registrable  Securities  when (i) a  registration
statement covering such Registrable Securities shall have become effective under
the  Securities Act of 1933, as amended (the "1933 Act"),  and such  Registrable
Securities  shall have been  disposed of in  accordance  with such



                                       1.
<PAGE>

registration statement and in accordance with the 1933 Act, or (ii) with respect
to a Holder,  at such  time as all of the  Registrable  Securities  held by such
Holder can be sold by such Holder in a  three-month  period in  accordance  with
Rule 144 under the 1933 Act, as such rule may be amended  from time to time,  or
any successor rule or regulation ("Rule 144").

         1.4  REGISTRATION.  Parent shall use its  commercially  reasonable best
efforts to prepare and file with the Securities and Exchange  Commission ("SEC")
a registration statement on Form S-3 (the "Registration Statement") covering the
resale of the  Registrable  Securities as soon as reasonably  practicable but in
any event  within  thirty (30) days  following  the  Effective  Time;  provided,
however,  that each Holder shall provide all such  information and materials and
take all such action as may be reasonably  required in order to permit Parent to
comply with all applicable requirements of the 1933 Act, the Securities Exchange
Act of 1934,  as amended  (the "1934  Act"),  and of the SEC,  and to obtain any
desired acceleration of the effective date of such registration statement,  such
provision  of  information  and  materials  to be a condition  precedent  to the
obligations of Parent pursuant to this  Agreement.  Parent shall not be required
to effect more than one (1)  registration  pursuant  to this  Section  1.4.  The
offerings made pursuant to such registration  shall not be underwritten.  Parent
shall use its  commercially  reasonable  best efforts to have such  Registration
Statement  declared  effective as soon as  practicable  following  the Effective
Time.  The Holders  shall  furnish  such  information  as Parent may  reasonably
request in connection with the preparation of the Registration  Statement.  Upon
registration of the Registrable  Securities with the SEC in accordance with this
Agreement,  the  Registrable  Securities  may be sold  in  accordance  with  the
Registration  Statement  under the 1933  Act.  Parent  shall use its  reasonable
efforts to cause  such  Registration  Statement  to remain  effective  until the
earlier  of (i) the date on which  all  Registrable  Securities  covered  by the
Registration Statement have been sold to the public pursuant to the Registration
Statement,  (ii) such time as which all  Registrable  Securities  covered by the
Registration  Statement  may be sold  pursuant to Rule 144 within a  three-month
period, or (iii) two (2) years after the Closing Date.

         1.5 OTHER  SHARES.  Parent may  include in any  registration  statement
under this Section 1 any other shares of Parent Common Stock  (including  issued
and  outstanding  shares of Parent Common Stock as to which the holders  thereof
have contracted with Parent for "piggyback" registration rights).

         1.6  SECURITYHOLDERS'  AGENT.  Securityholders'  Agent  shall  be  that
certain person  appointed by the shareholders of the Company pursuant to Section
10.1 of the Reorganization Agreement.


                                   SECTION 2

                              PARENT'S OBLIGATIONS

         In connection with the  Registration  Statement  referred to in Section
1.4, Parent shall:

         2.1   REGISTRATION   STATEMENT.   Prepare  and  file  with  the  SEC  a
registration statement with respect to the Registrable Securities and thereafter
use  its  commercially  reasonable  best  efforts  to  cause  such  Registration
Statement  to become  and remain  effective  for the period set forth in Section
1.4.



                                       2.
<PAGE>

         2.2  AMENDMENTS  AND  SUPPLEMENTS.  Prepare  and file with the SEC such
amendments  and  supplements to such  Registration  Statement and the prospectus
used in  connection  therewith  as may be  necessary  to keep such  Registration
Statement  effective  for the period set forth in Section 1.4 and to comply with
the provisions of the 1933 Act with respect to the sale or other  disposition of
the shares of Parent Common Stock covered by such Registration Statement.

         2.3 COPIES OF OFFERING DOCUMENTS.  Promptly furnish to the Holders such
numbers  of  copies  of  such  registration  statements,  prospectuses,  and any
amendments and supplements  thereto,  in conformity with the requirements of the
1933  Act,  such  documents  incorporated  by  reference  in  such  Registration
Statement and such other documents as the Holders reasonably  request,  in order
to  facilitate  the  public  sale  or  other   disposition  of  the  Registrable
Securities,  but only while Parent shall be required under the provisions hereof
to cause the registration statement to remain effective.

         2.4 MISLEADING  PROSPECTUS.  Promptly  notify each Holder,  at any time
when a prospectus  relating  thereto covered by such  registration  statement is
required to be delivered under the 1933 Act, upon Parent becoming aware that the
prospectus included in such Registration  Statement, as then in effect, includes
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 as soon as
practicable  thereafter use its commercially  reasonable best efforts to prepare
and file with the SEC and furnish to such Holder a  reasonable  number of copies
of a supplement  to or an amendment  of such  prospectus  as may be necessary so
that, as thereafter delivered to the purchasers of such Registrable  Securities,
such prospectus shall not include an untrue statement of a material fact or omit
to state a material fact required to be stated  therein or necessary to make the
statements therein not misleading in the light of the circumstances  under which
they are made.

         2.5 RULE 144. Use its commercially reasonable best efforts to file in a
timely manner any reports  required to be filed by it under the 1933 Act and the
1934 Act, and take such further  action as the Holders may  reasonably  request,
all from  time to time to  enable  each  such  Holder  to sell  the  Registrable
Securities owned by it without  registration  under the 1933 Act pursuant to the
exemption provided by Rule 144.

         2.6 PIGGYBACK REGISTRATIONS.

              (a)  NOTICE  AND  PARTICIPATION.  For a period  of  twelve  months
following  the date of this  Agreement,  Parent shall notify all Holders who are
also  Major  Investors  in writing at least ten (10) days prior to the filing of
any  registration  statement  under the 1933 Act for purposes of an underwritten
public  offering  of  securities  of  Parent  (including,  but not  limited  to,
registration statements relating to secondary offerings of securities of Parent,
but excluding registration statements relating to employee benefit plans or with
respect to corporate reorganizations or other transactions under Rule 145 of the
1933 Act) and will  afford each such  Holder an  opportunity  to include in such
registration  statement all or part of such Registrable  Securities held by such
Holder.  Each Holder desiring to include in any such registration  statement all
or any part of the Registrable Securities held by it shall, within ten (10) days
after the above-described  notice from Parent, so notify Parent in writing. Such
notice  shall  state the



                                       3.
<PAGE>

intended method of disposition of the Registrable  Securities by such Holder. If
a  Holder  decides  not to  include  all of its  Registrable  Securities  in any
registration   statement   thereafter   filed  by  Parent,   such  Holder  shall
nevertheless continue to have the right to include any Registrable Securities in
the next  registration  statement  as may be filed by  Parent  with  respect  to
underwritten offerings of its securities,  all upon the terms and conditions set
forth herein; provided such registration statement is filed within twelve months
of the date of this Agreement,  and further  provided that such rights shall not
attach to more than two underwritten registrations of Parent.

              (b) UNDERWRITING. The right of any such Holder to be included in a
registration  pursuant  to this  Section  2.6  shall be  conditioned  upon  such
Holder's  participation in such  underwriting and the inclusion of such Holder's
Registrable  Securities in the underwriting to the extent provided  herein.  All
Holders  proposing  to  distribute  their  Registrable  Securities  through such
underwriting  shall enter into an underwriting  agreement in customary form with
the  underwriter  or  underwriters  selected  for such  underwriting  by Parent.
Notwithstanding  any  other  provision  of the  Agreement,  if  the  underwriter
determines  in good faith that  marketing  factors  require a limitation  of the
number of shares to be  underwritten,  the number of shares that may be included
in the underwriting shall be allocated, first, to Parent; second, to all holders
of Parent  Common  Stock  (including  the  Major  Investors)  that have  similar
piggyback  registration  rights on a pro rata basis based on the total number of
Registrable  Securities  held by such holders;  and third, to any shareholder of
Parent (other than a holder with registration  rights).  No such reduction shall
(i)  reduce the  securities  being  offered by Parent for its own  account to be
included in the registration and underwriting.  If any Holder disapproves of the
terms of any such  underwriting,  such Holder may elect to withdraw therefrom by
written  notice to Parent and the  underwriter,  delivered  at least twenty (20)
business days prior to the effective  date of the  registration  statement.  Any
Registrable  Securities  excluded or withdrawn from such  underwriting  shall be
excluded  and  withdrawn  from  the  registration.  For any  Holder  which  is a
partnership or corporation,  the partners,  retired partners and shareholders of
such Holder,  or the estates and family members of any such partners and retired
partners and any trusts for the benefit of any of the foregoing  person shall be
deemed to be a single "HOLDER",  and any pro rata reduction with respect to such
"Holder"  shall  be  based  upon  the  aggregate   amount  of  shares   carrying
registration  rights  owned by all  entities  and  individuals  included in such
"Holder," as defined in this sentence.

              (c) RIGHT TO TERMINATE  REGISTRATION.  Parent shall have the right
to terminate or withdraw any registration initiated by it under this Section 2.6
prior to the  effectiveness of such  registration  whether or not any Holder has
elected to include securities in such registration. The Registration Expenses of
such withdrawn  registration shall be borne by Parent in accordance with Section
5 hereof.

         2.7 BLUE SKY  FILINGS.  Parent  shall  use its  reasonable  efforts  to
register and qualify the securities covered by the Registration  Statement under
the Blue Sky laws of such jurisdictions as shall be reasonably  requested by the
Holders,  provided that Parent shall 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 such states or jurisdictions.



                                       4.
<PAGE>

         2.8   EARNING   STATEMENT.   To  make   generally   available   to  its
securityholders an earning statement  satisfying the provisions of Section 11(a)
of the  1933  Act and  Rule  158 not  later  than 45 days  after  the end of any
12-month  period (or 90 days after the end of any 12-month period if such period
is a fiscal year) commencing on the first day of the first fiscal quarter of the
Company after the effective date of the Registration Statement,  which statement
shall conform to the requirements of Rule 158.


                                   SECTION 3

                            THE HOLDER'S OBLIGATIONS

         In connection with the  Registration  Statement  referred to in Section
1.4 or Section 2.6, the Holders shall each:

         3.1 OTHER DOCUMENTS AND  INFORMATION.  Complete,  execute,  acknowledge
and/or  deliver  such  questionnaires,   indemnification   agreements,   custody
agreements,  underwriting  agreements (if the registration is underwritten)  and
other  documents,  certificates  and  instruments as are reasonably  required by
Parent or any  underwriter(s) or are otherwise  necessary in connection with the
registration  and offering.  Each Holder shall  promptly  provide to Parent such
information   concerning  such  Holder,  such  Holder's  ownership  of  Parent's
securities,  the intended method of distribution  and such other  information as
may be  required  by  applicable  law  or  regulation  or as  may be  reasonably
requested by Parent.

         3.2  CESSATION OF  OFFERING.  Upon receipt of any notice from Parent of
the  happening of any event of the kind  described  in Section 2.4,  immediately
discontinue   disposition  of  the  Registrable   Securities   pursuant  to  the
Registration  Statement  covering such shares until the Holders'  receipt of the
copies of the  supplemented or amended  prospectus  contemplated by Section 2.4,
and, if so directed  by Parent,  deliver to Parent all copies of the  prospectus
covering such Registrable  Securities in such Holder's possession at the time of
receipt of such notice.

         3.3 NO PRELIMINARY PROSPECTUS. No Holder and no person or entity acting
on his or her behalf (other than an  underwriter  selected by Parent or approved
by Parent) shall offer any  Registrable  Securities by means of any  preliminary
prospectus.

         3.4  SUSPENSION OF  PROSPECTUS.  Each Holder will be required to notify
Parent in  writing at least two (2)  business  days  prior to a  disposition  of
Registrable  Securities  pursuant to the  Registration  Statement  of his or her
intent to dispose of such  Registrable  Securities.  At any time within such two
(2) business day period,  Parent may restrict  disposition  of such  Registrable
Securities,  in which  event  such  Holder  will not be able to  dispose of such
Registrable Securities,  provided that: (i) Parent shall have delivered a notice
in  writing  to such  Holder  stating  that a delay in the  disposition  of such
Registrable  Securities is necessary because Parent, in its reasonable judgment,
has  determined  that such sales would  require  public  disclosure by Parent of
material  nonpublic  information that Parent deems it advisable not to disclose;
provided,  however,  that no such delay  shall be imposed  unless  Parent  shall
equally prohibit during the period of such delay any sale of Parent's securities
by all  executive  officers and  directors of Parent and by all other holders of
the Company's restricted stock covered by resale registration  statements;  (ii)
in the event of the  delivery  of the notice  described  in (i) above by Parent,
Parent  shall  use  its



                                       5.
<PAGE>

commercially  reasonable best efforts to amend the registration statement and/or
amend or  supplement  the related  prospectus if necessary and to take all other
actions  necessary  to allow the  proposed  sale to take  place as  promptly  as
possible after the conditions  referred to in the notice have ceased to exist or
have been disclosed;  and (iii) Parent shall not restrict dispositions under (i)
above,  Section 2.4 and Section 4.1 for a period  exceeding,  in the  aggregate,
forty-five (45) days during any calendar quarter.


                                   SECTION 4

                                   LIMITATIONS

         4.1  OTHER  TRANSACTIONS.  Parent  shall not be  obligated  to effect a
registration  pursuant  to Section  1, or to file any  amendment  or  supplement
thereto,  and may  suspend  the  Holders'  rights to make sales  pursuant  to an
effective  registration  pursuant to Section 1, at any time when Parent,  in the
good faith  judgment of its Board of  Directors,  reasonably  believes  that the
filing  thereof at the time  requested,  or the offering of securities  pursuant
thereto,  would  (i)  materially  and  adversely  affect a pending  or  proposed
acquisition, merger, recapitalization,  consolidation, reorganization or similar
transaction, or negotiations,  discussions or pending proposals related thereto,
or (ii) be seriously detrimental to Parent and its stockholders,  in which event
(under  clause (i) or (ii) above)  Parent's  sole  relief from its  registration
obligations  is the right to defer  filing of a  registration  statement  (or to
suspend the Holders' rights to make sales pursuant to an effective  registration
pursuant  to  Section  1) for a period of not more than  forty-five  (45)  days;
provided, however, that Parent shall not use the right described in this Section
4.1,  Section 2.4 and Section 3.4(i) for a period  exceeding,  in the aggregate,
forty-five (45) days during any calendar quarter.


                                   SECTION 5

                          EXPENSES AND INDEMNIFICATION

         5.1  EXPENSES.  Parent  shall  pay  all of the  out-of-pocket  expenses
incurred,  other than underwriting  discounts and commissions and counsel to the
selling  shareholders,  in  connection  with  any  registration  of  Registrable
Securities pursuant to this Agreement,  including,  without limitation,  all SEC
and blue sky registration and filing fees,  printing expenses,  transfer agents'
and  registrars'  fees, and the reasonable  fees and  disbursements  of Parent's
outside counsel and independent accountants.

         5.2 OTHER EXPENSES.  Parent shall pay all  registration and filing fees
attributable  to the  Registrable  Securities and the listing fee payable to the
Nasdaq National Market.

         5.3  INDEMNIFICATION  AND  CONTRIBUTION.  In the event any  Registrable
Securities are included in a registration statement under Section 1:

              (a)  INDEMNIFICATION  BY PARENT.  To the extent  permitted by law,
Parent will indemnify and hold harmless each Holder,  his heirs,  successors and
assigns,  any underwriter (as defined in the 1933 Act) for such Holder, and each
person,  if any, who controls such Holder or  underwriter  within the meaning of
the 1933 Act or the 1934 Act, against any losses, claims,


                                       6.
<PAGE>

damages,  liabilities or actions to which they may become subject under the 1933
Act,  the 1934 Act or other  federal or state law,  arising out of or based upon
any untrue statement or alleged untrue statement of a material fact contained in
such  registration   statement,   including  any  preliminary   prospectus  (not
prohibited  by  Section  3.3)  or  final  prospectus  contained  therein  or any
amendments or supplements  thereto, or arising out of or based upon the omission
or alleged  omission  to state  therein a material  fact  required  to be stated
therein or necessary  to make the  statements  therein,  in the context in which
made, not  misleading;  and Parent will  reimburse each such Holder,  his heirs,
successors and assigns, underwriter or controlling person for any legal or other
expenses  reasonably  incurred  by  them in  connection  with  investigating  or
defending any such loss, claim, damage, liability, or action; provided, however,
that the  indemnification  and other rights  provided for in this Section 5.3(a)
shall  not apply  (i) to any such  loss,  claim,  damage,  liability,  or action
insofar  as it arises  out of or is based  upon an untrue  statement  or alleged
untrue  statement  or omission  or alleged  omission  made in such  registration
statement,  preliminary  prospectus  or final  prospectus  or any  amendment  or
supplement  thereto, in reliance upon and in conformity with written information
furnished  expressly for use in connection with such  registration by any Holder
or (ii) if the person  asserting  any such loss,  claim,  damage,  liability  or
action who purchased the  Registrable  Securities  which are the subject thereof
did not  receive  a copy  of an  amended  preliminary  prospectus  or the  final
prospectus (or the final  prospectus as amended or  supplemented) at or prior to
the written  confirmation  of the sale of such  Registrable  Securities  to such
person  because of the failure of such Holder or  underwriter to so provide such
amended  preliminary  or final  prospectus  and the untrue  statement or alleged
untrue statement or omission or alleged omission of a material fact made in such
preliminary  prospectus was corrected in the amended  preliminary  prospectus or
the final prospectus (or the final prospectus as amended and supplemented). Such
indemnity shall remain in full force and effect  regardless of any investigation
made by or on behalf of such Holder, underwriter or controlling person and shall
survive the transfer of the Registrable Securities by such Holder.

              (b)  INDEMNIFICATION  BY HOLDERS.  To the extent permitted by law,
the Holders will  severally  (but not jointly and pro rata)  indemnify  and hold
harmless  Parent,  its successors and assigns,  its officers and directors,  any
underwriter  (as defined in the 1933 Act)  requested  by the  Holders,  and each
person,  if any, who controls  Parent or any such  underwriter  requested by the
Holders within the meaning of the 1933 Act or the 1934 Act,  against any losses,
claims,  damages,  liabilities  or actions  (joint or several) to which they may
become  subject  under the 1933 Act, the 1934 Act or other federal or state law,
arising  out of or  based  upon  (i) any  untrue  statement  or  alleged  untrue
statement of a material fact contained in such registration statement, including
any  preliminary  prospectus  or  final  prospectus  contained  therein  or  any
amendments or supplements  thereto, or arising out of or based upon the omission
or alleged  omission  to state  therein a material  fact  required  to be stated
therein or necessary  to make the  statements  therein,  in the context in which
made,  not  misleading;  provided that such untrue  statement or alleged  untrue
statement  or omission  or alleged  omission  was made in  reliance  upon and in
conformity with written  information  furnished by such Holder expressly for use
in such  registration  by such Holder,  or (ii) the failure of any Holder or any
underwriter  requested by the Holders at or prior to the written confirmation of
the sale of the Registrable  Securities to send or arrange delivery of a copy of
an  amended  preliminary  prospectus  or the  final  prospectus  (or  the  final
prospectus as amended or  supplemented)  to the person  asserting any such loss,
claim,  damage,  liability or action who  purchased the  Registrable  Securities
which  is the  subject  thereof  and the  untrue  statement  or  alleged  untrue
statement  or  omission  or alleged  omission  of a  material  fact made in



                                       7.
<PAGE>

such preliminary  prospectus was corrected in the amended preliminary prospectus
or the final prospectus (or the final  prospectus as amended and  supplemented).
The  Holders  will  reimburse  Parent  and each  such  officer  or  director  or
controlling person for any legal or other expenses  reasonably  incurred by them
in connection  with  investigating  or defending any such loss,  claim,  damage,
liability,  or  action.  Such  indemnity  shall  remain in full force and effect
regardless  of any  investigation  made by or on  behalf  of  Parent or any such
officer,  director,  underwriter  requested by the Holders or controlling person
and shall survive the transfer of the Registrable Securities by such Holder.

              (c) INDEMNIFICATION PROCEDURES. Promptly after receipt by a person
who may be entitled to  indemnification  under this Section 5.3 (an "indemnified
party") of notice of the commencement of any action  (including any governmental
action) for which  indemnification may be available under this Section 5.3, such
indemnified  party will, if a claim in respect thereof is to be made against any
person who must provide indemnification under this Section 5.3 (an "indemnifying
party"),  deliver to the indemnifying party a written notice of the commencement
thereof,  and the indemnifying party shall have the right to participate in and,
to the  extent  the  indemnifying  party so  desires,  jointly  with  any  other
indemnifying  party  similarly  notified,  to assume the  defense  thereof  with
counsel  mutually  satisfactory  to the  parties;  provided,  however,  that  an
indemnified  party  shall  have the right to  retain  its own  counsel  (and the
reasonable  fees of such counsel  shall be paid by the  indemnifying  party) and
assume  its  own  defense  if  (i)  the  retention  of  such  counsel  has  been
specifically   authorized  in  writing  by  the  indemnifying  party,  (ii)  the
indemnifying  party  has  failed to  promptly  assume  the  defense  and  employ
experienced  counsel  reasonably  acceptable to the indemnified  party after the
indemnifying  party has received the notice of the  indemnification  matter from
the  indemnified  party,  or (iii) the named parties to any such action  include
both the indemnified party and the indemnifying party, and the representation of
both parties by the same  counsel  would be  inappropriate  due to a conflict of
interest between them. It is understood,  however,  that the indemnifying  party
shall not, in connection with any one such action or separate but  substantially
similar  or  related  actions  in the  same  jurisdiction,  be  liable  for  the
reasonable fees and expenses of more than one separate firm of attorneys for all
indemnified  parties unless the  indemnified  parties in good faith conclude and
are advised by their  counsel that there is an actual or  potential  conflict of
interest  among the  indemnified  parties.  No  indemnification  provided for in
Section  5.3(a) or Section 5.3(b) shall be available to any party who shall fail
to give notice as provided in this  Section  5.3(c) to the extent that the party
to whom notice was not given was unaware of the  proceeding to which such notice
would have  related and was  materially  prejudiced  by the failure to give such
notice.

              (d)  CONTRIBUTION.  If a  claim  for  indemnification  under  this
Section  5.3 is  unavailable  to an  indemnified  party  because of a failure or
refusal of a court of competent  jurisdiction to enforce such indemnification in
accordance  with its terms (by reason of public policy or otherwise),  then each
indemnifying  party,  in lieu of  indemnifying  such  indemnified  party,  shall
contribute to the amount paid or payable by such  indemnified  party as a result
of any such loss, claim, damage, liability or action referred to therein in such
proportion as is appropriate  to reflect the relative fault of the  indemnifying
party and indemnified  party in connection with the statements or omissions that
resulted in such loss, claim, damage,  liability or action, as well as any other
relevant equitable considerations. The relative fault of such indemnifying party
and  indemnified  party shall be determined by reference to, among other things,
whether any action in question, including any untrue or alleged untrue statement
of a



                                       8.
<PAGE>

material fact or omission or alleged omission of a material fact, has been taken
or made by, or relates to information  supplied by, such  indemnifying  party or
indemnified  party,  and the  parties'  relative  intent,  knowledge,  access to
information  and  opportunity  to correct or prevent such statement or omission.
The parties hereto agree that it would not be just and equitable if contribution
pursuant to this Section 5.3(d) were determined by pro rata allocation or by any
other  method  of  allocation  that  does not take into  account  the  equitable
considerations  referred to in this  paragraph.  No person  guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be
entitled to  contribution  from any person who was not guilty of such fraudulent
misrepresentation.


                                   SECTION 6

                                OTHER PROVISIONS

         6.1 NOTICES. All notices, requests and other communications required or
permitted to be given pursuant to this  Agreement  shall be in writing and shall
be deemed to have been duly given when delivered  personally or one business day
after being sent by a nationally  recognized  overnight  delivery service to the
Holders at their  respective  addresses of record with Parent's  transfer agent,
and to Parent at its address stated in the Reorganization Agreement. Notices may
also be given by facsimile  and shall be effective  on the date  transmitted  if
confirmed  within 48 hours  thereafter  by a signed  original sent in the manner
provided in the preceding sentence.

         6.2 AMENDMENT OF REGISTRATION  RIGHTS. The Holders of a majority of the
Registrable  Securities  from time to time  outstanding  may,  with the  written
consent of Parent, amend the registration rights granted hereunder.

         6.3 PARTIES IN INTEREST.  This Agreement  shall be binding upon each of
the  parties  hereto  and  each of their  respective  permitted  successors  and
assigns,  if any. No Holder may assign such Holder's rights under this Agreement
without the express prior written consent of Parent, provided, however, that (i)
upon the death of a Holder,  such Holder's  rights under this Agreement shall be
transferred to the person(s) who receive such Holder's Parent Common Stock under
the laws of descent and  distribution,  (ii) a Holder may assign  such  Holder's
rights  under  this  Agreement  to  any  organization  qualified  under  Section
501(c)(3) of the Internal Revenue Code to which the Holder transfers Registrable
Securities or in connection with an estate planning transaction,  (iii) a Holder
may transfer its rights under this Agreement to any transferee of 50,000 or more
of the Registrable  Securities (subject to appropriate adjustment based on stock
dividends,  stock splits and other similar  transactions  after the date hereof)
who  agrees in writing  to be bound by the terms of this  Agreement  to the same
extent  as if such  transferee  were a  Holder  hereunder  and  subject  to such
Holder's  prior  delivery to Parent of an opinion of counsel in form  reasonably
satisfactory  to the  Parent to the  effect  that the  transfer  of  Registrable
Securities  was  made in  compliance  with  all  applicable  federal  and  state
securities  laws and  (iv) a pro rata  distribution  of  Registrable  Securities
without   additional   consideration  to  the  general  and  limited   partners,
shareholders  or trust  beneficiaries  of a Holder shall not be deemed a sale or
transfer for purposes of this Section 6.3 and such persons  shall be entitled to
the same  rights  under this  Agreement  as the  initial  Holder  from which the
Registrable  Securities  were  received  were  entitled to and shall be deemed a
Holder for the  purposes of this  Agreement.  Any person  receiving  Registrable
Securities  from a Major  Investor  shall  take such  securities




                                       9.
<PAGE>

subject to the provisions of the lock-up agreement referred to in Section 6.5 of
the Reorganization  Agreement.  Nothing in this Agreement is intended to confer,
or shall be deemed to confer,  any rights or remedies  upon any person or entity
other than the parties hereto and their permitted  successors and assigns.  This
Agreement shall inure to the benefit of: the Holders; Parent; and the respective
successors and assigns, if any, of the foregoing.

         6.4 WAIVERS.  Except as otherwise  expressly provided herein, no waiver
with respect to this Agreement shall be enforceable unless in writing and signed
by the party against whom enforcement is sought.  Except as otherwise  expressly
provided  herein,  no failure to  exercise,  delay in  exercising,  or single or
partial  exercise of any right,  power or remedy by any party,  and no course of
dealing  between or among any of the parties,  shall  constitute a waiver of, or
shall preclude any other or further exercise of, any right, power or remedy.

         6.5 SEVERABILITY. If any provision of this Agreement is construed to be
invalid,  illegal or unenforceable,  then the remaining  provisions hereof shall
not be affected thereby and shall be enforceable without regard thereto.

         6.6  SECTION  HEADINGS.  Section  headings  in this  Agreement  are for
convenience of reference only, do not constitute a part of this  Agreement,  and
shall not affect its interpretation.

         6.7 REFERENCES.  All words used in this Agreement shall be construed to
be of such number and gender as the context  requires.  The terms "it" and "its"
as used herein  include  entities as well as  masculine  and  feminine  persons.
Unless a particular context clearly requires  otherwise,  the words "hereof" and
"hereunder" and similar  references  refer to this Agreement in its entirety and
not to any specific section or subsection of this Agreement.



                                      10.
<PAGE>


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

                                   MESSAGEMEDIA, INC.


                                   /s/ Larry Jones
                                   ---------------------------------------------
                                   By:  Larry Jones
                                      ------------------------------------------
                                   Title:  President and Chief Executive Officer
                                         ---------------------------------------


                                   SECURITYHOLDERS' AGENT:

                                   /s/ Eric DiBenedetto
                                   ---------------------------------------------
                                   Eric DiBenedetto, as the Securityholders'
                                   Agent


                                   WILLIAM BLAIR & COMPANY LLC


                                   /s/ WILLIAM BLAIR & COMPANY LLC
                                   ---------------------------------------------
                                   By:  W. Rick Stearns
                                      ------------------------------------------
                                   Title:  Associate
                                         ---------------------------------------




                                      11.
<PAGE>




                                   EXHIBIT G

                            FORM OF ESCROW AGREEMENT




<PAGE>


                                ESCROW AGREEMENT

         THIS ESCROW  AGREEMENT  ("Agreement")  is made and  entered  into as of
August  __,  1999 by and  among:  MESSAGEMEDIA,  INC.,  a  Delaware  corporation
("Parent"),  ________________,  AS SECURITYHOLDERS' AGENT (the "Securityholders'
Agent") for the shareholders identified on Exhibit A hereto (the "Shareholders")
of Decisive Technology Corporation, a California corporation (the "Company") and
CHASE  MANHATTAN  BANK AND TRUST,  N.A.,  a national  banking  association  (the
"Escrow Agent").

                                    RECITALS

         A. Parent, MM2 Acquisition  Corp., a Delaware  corporation and a wholly
owned  subsidiary of Parent ("Merger Sub"), and the Company have entered into an
Agreement and Plan of Merger and  Reorganization  dated as of July __, 1999 (the
"Reorganization  Agreement"),  pursuant to which  Merger Sub will merge with and
into the Company and the  Shareholders  will have the right to receive shares of
common stock of Parent.

         B. The  Reorganization  Agreement  contemplates the establishment of an
escrow  arrangement to secure the  indemnification  and other obligations of the
Shareholders under the Reorganization Agreement.

         C. Pursuant to Section 10.1 of the Reorganization Agreement and Section
10 of this Agreement,  the Shareholders have irrevocably appointed _____________
to serve as  Securityholders'  Agent for,  among other  things,  all matters set
forth in Section 9 of the Reorganization Agreement.

                                    AGREEMENT

         The parties, intending to be legally bound, agree as follows:

         1. DEFINED  TERMS.  Capitalized  terms used in this  Agreement  and not
otherwise  defined shall have the meanings  given to them in the  Reorganization
Agreement, a copy of which is attached hereto.

         2. ESCROW AND INDEMNIFICATION.

              (a) SHARES PLACED IN ESCROW. At the Effective Time, which shall be
set forth in a notice to Escrow Agent:  (i) Parent shall issue  certificates for
shares of Parent Common Stock registered in the names of the Shareholders as set
forth on Exhibit A hereto,  evidencing  the shares of Parent  Common Stock to be
held in escrow in accordance  with this  Agreement.  The shares of Parent Common
Stock being held in escrow  pursuant to this  Agreement  (the  "Escrow  Shares")
shall  constitute  an escrow  fund  (the  "Escrow  Fund")  with  respect  to the
indemnification   obligations  of  the  Shareholders  under  the  Reorganization
Agreement.  The  Escrow  Fund  shall be held as a trust  fund and  shall  not be
subject to any lien,  attachment,  trustee process or any other judicial process
of any  creditor of any  Shareholder  or of any party  hereto.  The Escrow Agent
agrees to accept  delivery  of the Escrow Fund and to hold the Escrow Fund in an
escrow  account (the "Escrow  Account"),  subject to the terms and conditions of
this Agreement.



                                       1.
<PAGE>

              (b) VOTING OF ESCROW SHARES. The record owner of the Escrow Shares
shall be  entitled  to exercise  all voting  rights with  respect to such Escrow
Shares.

              (c)  DIVIDENDS,  ETC.  Parent and each of the  Shareholders  agree
among  themselves,  for the  benefit of Parent and the  Escrow  Agent,  that any
securities or other property  distributable  (whether by way of dividend,  stock
split or otherwise) in respect of or in exchange for any Escrow Shares shall not
be distributed  to the record owners of such Escrow Shares,  but rather shall be
distributed to and held by the Escrow Agent in the Escrow Account. Ordinary cash
dividends  will be paid by Parent  directly to the  Shareholders  and not to the
Escrow  Agent.  Unless and until the Escrow  Agent shall  actually  receive such
additional  securities or other property, it may assume without inquiry that the
Escrow Shares  currently being held by it in the Escrow Account are all that the
Escrow Agent is required to hold.  At the time any Escrow Shares are required to
be released from the Escrow  Account to any Person  pursuant to this  Agreement,
any  securities  or other  property  previously  received by the Escrow Agent in
respect of or in exchange  for such  Escrow  Shares  shall be released  from the
Escrow to such Person.

              (d)  TRANSFERABILITY.  The  interests of the  Shareholders  in the
Escrow Account and in the Escrow Shares shall not be assignable or transferable,
other  than by  operation  of law.  No  transfer  of any of  such  interests  by
operation of law shall be recognized or given effect until Parent and the Escrow
Agent shall have received written notice of such transfer.

              (e) FRACTIONAL SHARES. No fractional shares of Parent Common Stock
shall be  retained  in or  released  from the Escrow  Account  pursuant  to this
Agreement.  In  connection  with any  release of Escrow  Shares  from the Escrow
Account,  Parent  and the  Escrow  Agent  shall  "round  down" in order to avoid
retaining  any  fractional  share in the  Escrow  Account  and in order to avoid
releasing any fractional share from the Escrow Account. When shares are "rounded
down", no cash-in-lieu payments need to be made.

         3.  ADMINISTRATION  OF ESCROW  ACCOUNT.  Except as  otherwise  provided
herein, the Escrow Agent shall administer the Escrow Account as follows:

              (a) If any  Indemnitee  has or claims to have incurred or suffered
Damages for which it is or may be entitled to  indemnification,  compensation or
reimbursement under Section 9 of the Reorganization  Agreement,  such Indemnitee
may, on or prior to the  fifteenth  month  anniversary  of the Closing Date (the
"Termination  Date"),   deliver  a  claim  notice  (a  "Claim  Notice")  to  the
Securityholders'  Agent and to the Escrow  Agent.  Each Claim Notice shall state
that  such  Indemnitee  believes  that  there  is or  has  been  a  breach  of a
representation,  warranty or covenant contained in the Reorganization  Agreement
or that such Indemnitee is otherwise entitled to  indemnification,  compensation
or reimbursement under Section 9.2 of the Reorganization Agreement and contain a
description  in  reasonable   detail  of  the   circumstances   supporting  such
Indemnitee's  belief  that  there is or has  been  such a  breach  or that  such
Indemnitee is so entitled to indemnification,  compensation or reimbursement and
shall, to the extent possible,  contain a non-binding,  preliminary  estimate of
the amount of Damages  such  Indemnitee  claims to have so  incurred or suffered
(the "Claimed Amount").

              (b) Within 30 business days after receipt by the  Securityholders'
Agent  of a  Claim  Notice,  the  Securityholders'  Agent  may  deliver  to  the
Indemnitee  who  delivered  the Claim



                                       2.
<PAGE>

Notice and to the Escrow Agent a written  response  (the  "Response  Notice") in
which the  Securityholders'  Agent:  (i)  agrees  that a whole  number of Escrow
Shares having a "Stipulated  Value" (as defined below) equal to the full Claimed
Amount may be released from the Escrow  Account to the  Indemnitee;  (ii) agrees
that Escrow Shares having a Stipulated  Value equal to part, but not all, of the
Claimed Amount (the "Agreed  Amount") may be released from the Escrow Account to
the  Indemnitee  or (iii)  indicates  that no part of the Claimed  Amount may be
released from the Escrow  Account to the Indemnitee  (due to the  application of
Section 9.3(a) of the  Reorganization  Agreement or otherwise).  Any part of the
Claimed  Amount  that  is not to be  released  to the  Indemnitee  shall  be the
"Contested  Amount." If a Response  Notice is not  received by the Escrow  Agent
within such 30 business-day  period,  then the  Securityholders'  Agent shall be
deemed to have agreed that Escrow Shares having a Stipulated  Value equal to the
full Claimed Amount may be released to the Indemnitee from the Escrow Account.

              (c) If the  Securityholders'  Agent  delivers  a  Response  Notice
agreeing that Escrow Shares having a Stipulated  Value equal to the full Claimed
Amount may be  released  from the Escrow  Account to the  Indemnitee,  or if the
Securityholders'  Agent does not deliver a Response  Notice in  accordance  with
Section  3(b),  the Escrow  Agent shall  promptly  following  the receipt of the
Response  Notice (or, if the Escrow  Agent has not  received a Response  Notice,
promptly  following the expiration of the 30 business-day  period referred to in
Section 3(b)), deliver to such Indemnitee such Escrow Shares.

              (d) If the  Securityholders'  Agent  delivers  a  Response  Notice
agreeing  that Escrow Shares  having a Stipulated  Value equal to part,  but not
all,  of the  Claimed  Amount may be  released  from the  Escrow  Account to the
Indemnitee,  the  Escrow  Agent  shall  promptly  following  the  receipt of the
Response  Notice  deliver to such  Indemnitee  Escrow Shares having a Stipulated
Value equal to the Agreed Amount.

              (e) If the  Securityholders'  Agent  delivers  a  Response  Notice
indicating that there is a Contested Amount, the Securityholders'  Agent and the
Indemnitee  shall  attempt in good faith to resolve the  dispute  related to the
Contested Amount. If the Indemnitee and the Securityholders' Agent shall resolve
such dispute,  such resolution  shall be binding on all of the  Shareholders and
all of the  Indemnitees  and a  settlement  agreement  shall  be  signed  by the
Indemnitee  and the  Securityholders'  Agent and sent to the Escrow  Agent,  who
shall,  upon receipt  thereof,  if  applicable,  release  Escrow Shares from the
Escrow Account in accordance with such agreement.

              (f) If the Securityholders' Agent and the Indemnitee are unable to
resolve the dispute  relating to any  Contested  Amount  within 30 business days
after the delivery of the Claim  Notice,  then the claim  described in the Claim
Notice shall be settled by binding arbitration in Denver or Boulder, Colorado in
accordance with the Commercial  Arbitration Rules then in effect of the American
Arbitration  Association  (the "AAA  Rules").  Arbitration  will be conducted by
three arbitrators,  selected in accordance with the AAA Rules. The parties agree
to use all reasonable  efforts to cause the arbitration  hearing to be conducted
within 60 calendar days after the  appointment of the arbitrators and to use all
reasonable efforts to cause the arbitrators'  decision to be furnished within 90
calendar days after the  appointment  of the  arbitrators.  The parties  further
agree that  discovery  shall be completed at least 20 calendar days prior to the
date of the arbitration hearing.  The arbitrators'  decision shall relate solely
to whether the  Indemnitee



                                       3.
<PAGE>

is entitled  to recover the  Contested  Amount (or a portion  thereof),  and the
portion of such  Contested  Amount the  Indemnitee  is entitled to recover.  The
final  decision of the  arbitrators  shall be furnished to the  Securityholders'
Agent,  the  Indemnitee  and the Escrow Agent in writing and shall  constitute a
conclusive   determination   of  the  issue  in   question,   binding  upon  the
Shareholders,  the Indemnitee and the Escrow Agent and shall not be contested by
any  of  them.  The  non-prevailing  party  in any  arbitration  shall  pay  the
reasonable  expenses  (including  attorneys' fees) of the prevailing  party, any
additional reasonable fees and expenses (including reasonable legal fees) of the
Escrow  Agent,  and the  fees  and  expenses  associated  with  the  arbitration
(including the  arbitrators'  fees and  expenses).  For purposes of this Section
3(f),  the  non-prevailing  party shall be deemed to be the  Indemnitee if it is
entitled to recover less than 50% of the Contested Amount; otherwise it shall be
the Shareholders.

              (g) The Escrow Agent shall  release  Escrow Shares from the Escrow
Account in connection with any Contested Amount within 5 business days after the
delivery  to it  of:  (i) a  copy  of a  settlement  agreement  executed  by the
Indemnitee  and the  Securityholders'  Agent setting forth  instructions  to the
Escrow Agent as to the number of Escrow Shares,  if any, to be released from the
Escrow  Account,  with  respect to such  Contested  Amount or (ii) a copy of the
award of the  arbitrators  referred to and as provided in Section  3(f)  setting
forth  instructions  to the Escrow Agent as to the number of Escrow  Shares,  if
any, to be released  from the Escrow  Account,  with  respect to such  Contested
Amount.

              (h) Any  Escrow  Shares  released  from the  Escrow  Account to an
Indemnitee  shall be deemed to reduce the Escrow Shares pro rata with respect to
each Shareholder in accordance with each  Shareholder's  percentage  interest in
the Escrow Fund as set forth in Exhibit A.

         4. RELEASE OF ESCROW SHARES. The Escrow Agent is not the stock transfer
agent for the Parent Common Stock. Accordingly, if a distribution of a number of
shares of Parent  Common Stock less than all of the Escrow Shares is to be made,
the Escrow Agent must  requisition  the  appropriate  number of shares from such
stock transfer agent,  delivering to it the appropriate stock certificates.  For
the  purposes  of this  Agreement,  the  Escrow  Agent  shall be  deemed to have
delivered Parent Common Stock to the Person entitled to it when the Escrow Agent
has delivered such  certificates to such stock transfer agent with  instructions
to deliver it to the appropriate  Person.  Distributions  of Parent Common Stock
shall be made to Parent or the  Shareholders,  as appropriate,  at the addresses
described  in  Section  11(b).  Whenever  a  distribution  is to be  made to the
Shareholders,  pro rata distributions shall be made to each of them based on the
percentage  interests  in the  Escrow  Fund set  forth in  Exhibit  A as then in
effect.  Within five business days after the Termination  Date, the Escrow Agent
shall  distribute or cause the stock  transfer agent for the Parent Common Stock
to distribute to each of the Shareholders such Shareholder's pro-rata portion of
the Escrow Shares then held in escrow based on the  percentage  interests in the
Escrow Fund set forth in Exhibit A as then in effect;  provided,  however,  that
notwithstanding the foregoing, if, prior to the Termination Date, any Indemnitee
has given a Claim Notice containing a claim which has not been resolved prior to
the Termination Date in accordance with Section 3, the Escrow Agent shall retain
in the  Escrow  Account  after  the  Termination  Date  Escrow  Shares  having a
Stipulated Value equal to 100% of the Claimed Amount or Contested Amount, as the
case may be, with respect to all claims which have not then been resolved.



                                       4.
<PAGE>

         5. VALUATION OF ESCROW SHARES, ETC.

              (a)  STIPULATED  VALUE.  For  purposes  of  this  Agreement,   the
"Stipulated  Value"  of each  Escrow  Share  shall  be  deemed  to be  equal  to
$___________, which equals the Parent Average Stock Price as of the Closing Date
under the Reorganization Agreement.

              (b) STOCK SPLITS.  All numbers  contained in, and all calculations
required to be made pursuant to, this Agreement shall be adjusted as appropriate
to reflect any stock  split,  reverse  stock  split,  stock  dividend or similar
transaction effected by Parent after the date hereof;  provided,  however,  that
the Escrow Agent shall have received  notice of such stock split or other action
and shall have received the  appropriate  number of additional  shares of Parent
Common Stock or other property  pursuant to Section 2(c) hereof. In the event of
any such stock split or other  similar  occurrence,  Parent shall deliver to the
Securityholders'  Agent and the  Escrow  Agent a revised  version  of  Exhibit A
setting  forth the new number of Escrow  Shares held in the Escrow Fund.  Unless
and until the Escrow Agent  receives the  certificates  representing  additional
shares of Parent Common Stock or other  property  pursuant to Section 2(c),  the
Escrow Agent may assume without inquiry that no such stock or other property has
been or is required to be issued with respect to Escrow Shares.

              (c)  EXCLUSIVE  REMEDY.  With the  exception  of claims based upon
fraud,  from and after the  Closing,  recourse  of Parent to the  Escrow  Shares
(adjusted as appropriate to reflect any stock split,  reverse stock split, stock
dividend  or  similar  transaction  effected  by Parent  after the date  hereof)
pursuant to the  Reorganization  Agreement and this Agreement  shall be the sole
and  exclusive  remedy of Parent  and the  other  Indemnitees  for any claim for
damages under the indemnification provisions contained in, or any breach of, the
Reorganization  Agreement (it being understood that nothing in this paragraph or
elsewhere in this  Agreement  or in the  Reorganization  Agreement  shall affect
Parent's rights to specific performance or other similar equitable remedies).

         6. FEES AND  EXPENSES.  Upon the  execution  of this  Agreement  by all
parties hereto and the initial deposit of the Escrow Fund in the Escrow Account,
fees and expenses, in accordance with Exhibit B attached hereto, will be payable
to the Escrow  Agent.  This annual  Escrow Agent fee will cover the first twelve
months of the escrow.  In accordance with Exhibit B attached hereto,  the Escrow
Agent will also be entitled  to  reimbursement  for  reasonable  and  documented
out-of-pocket expenses,  including those of its counsel,  incurred by the Escrow
Agent in the performance of its duties  hereunder and the execution and delivery
of this Agreement. All such fees and expenses shall be paid by Parent.

         7. LIMITATION OF ESCROW AGENT'S LIABILITY.

         The Escrow Agent  undertakes to perform such duties as are specifically
set  forth in this  Agreement  only  and  shall  have no duty  under  any  other
agreement or document notwithstanding their being referred to herein or attached
hereto as an  exhibit.  The  Escrow  Agent  shall not be liable  except  for the
performance of such duties as are specifically set forth in this Agreement,  and
no implied  covenants or obligations  shall be read into this Agreement  against
the Escrow Agent.  The Escrow Agent shall incur no liability with respect to any
action taken by it or for any inaction on its part in reliance  upon any notice,
direction,  instruction,



                                       5.
<PAGE>

consent,  statement  or other  document  believed  by it to be genuine  and duly
authorized,  nor for any other  action or  inaction  except for its own  willful
misconduct or gross  negligence.  In all questions arising under this Agreement,
the  Escrow  Agent may rely on the advice of  counsel,  and for  anything  done,
omitted or suffered in good faith by the Escrow Agent based upon such advice the
Escrow  Agent  shall not be liable to  anyone.  The  Escrow  Agent  shall 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  reasonably  satisfactory to
it. In no event  shall the  Escrow  Agent be liable  for  special,  indirect  or
consequential  loss or damage of any kind whatsoever  (including but not limited
to lost profits), even if the Escrow Agent has been advised of the likelihood of
such loss or damage and regardless of the form of action.

         Parent  hereby  agrees to  indemnify  the Escrow Agent for, and hold it
harmless against,  any loss, liability or expense incurred without negligence or
willful misconduct on the part of Escrow Agent,  arising out of or in connection
with its carrying  out of its duties  hereunder.  This right of  indemnification
shall survive the  termination  of this  Agreement,  and the  resignation of the
Escrow Agent. The costs and expenses of enforcing this right of  indemnification
shall also be paid by Parent.

         8. TERMINATION.  This Agreement shall terminate on the Termination Date
or, if earlier,  upon the release by the Escrow Agent of the entire  Escrow Fund
in accordance with this Agreement;  provided,  however, that if the Escrow Agent
has received from any  Indemnitee a Claim Notice  setting forth a claim that has
not been resolved by the Termination Date, then this Agreement shall continue in
full force and effect until the claim has been  resolved  and the Escrow  Shares
released in accordance with this Agreement.

         9.  SUCCESSOR  ESCROW  AGENT.  In the event the  Escrow  Agent  becomes
unavailable or unwilling to continue as escrow agent under this  Agreement,  the
Escrow  Agent may resign  and be  discharged  from its  duties  and  obligations
hereunder by giving its written  resignation  to the parties to this  Agreement.
Such  resignation  shall take effect not less than 30 calendar  days after it is
given to all parties  hereto.  Parent may appoint a successor  Escrow Agent only
with the  consent of the  Securityholders'  Agent  (which  consent  shall not be
unreasonably withheld or delayed). The Escrow Agent shall act in accordance with
written  instructions  from  Parent as to the  transfer  of the Escrow Fund to a
successor escrow agent. Any company into which the Escrow Agent may be merged or
converted or with which it may be consolidated or any company resulting from any
merger,  conversion or consolidation to which it shall be a party or any company
to which the Escrow Agent may sell or transfer all or  substantially  all of its
escrow/custody  business,  provided  such company  shall be eligible to serve as
Escrow Agent  hereunder,  shall be the  successor  hereunder to the Escrow Agent
without the execution or filing of any paper or any further act.

         10.  SECURITYHOLDERS'  AGENT. By virtue of their approval of the Merger
and the  Reorganization  Agreement,  the  Shareholders  shall have  approved the
indemnification  and escrow terms set forth in the Reorganization  Agreement and
this Agreement and shall have agreed to irrevocably  appoint  _______________ as
Securityholders'  Agent,  to give and  receive  notices and  communications,  to
authorize delivery to Parent of Parent Common Stock, cash or other property from
the Escrow Fund, to object to such  deliveries,  to agree to,  negotiate,  enter
into settlements and compromises of, and demand dispute  resolution  pursuant to
Section 3 of this



                                       6.
<PAGE>

Agreement  and  comply  with  orders of courts and  awards of  arbitrators  with
respect to such claims,  and to take all actions necessary or appropriate in the
judgment of the Securityholders'  Agent for the accomplishment of the foregoing.
The Securityholders'  Agent shall not be responsible for any act done or omitted
thereunder  as  Securityholders'  Agent  while  acting in good  faith and in the
exercise of reasonable  judgment.  The Shareholders  shall jointly and severally
indemnify  the  Securityholders'  Agent  and  hold  the  Securityholders'  Agent
harmless  against  any  loss,   liability  or  expense  incurred  without  gross
negligence,  bad faith or willful misconduct on the part of the Securityholders'
Agent and arising out of or in connection with the acceptance or  administration
of the Securityholders' Agent's duties hereunder,  including the reasonable fees
and  expenses  of any  legal  counsel  or  other  professional  retained  by the
Securityholders'  Agent.  By virtue of their  approval  of the  Merger  and this
Agreement,  the  Shareholders  hereby  agree  to pay  all  costs  and  expenses,
including  those of any legal  counsel  or other  professional  retained  by the
Securityholders'  Agent, in connection with the acceptance and administration of
the  Securityholders'  Agent's duties  hereunder.  Subject to the prior right of
Parent to make claims for  Damages,  the  Securityholders'  Agent shall have the
right  to  recover  from  the  Escrow  Fund  prior  to any  distribution  to the
Shareholders,  any costs and expenses,  including  those of any legal counsel or
other professional  retained by the  Securityholders'  Agent, in connection with
the  acceptance  and  administration  of  the  Securityholders'  Agent's  duties
hereunder.

         11. MISCELLANEOUS.

              (a) ATTORNEYS' FEES. If any action or proceeding  relating to this
Agreement  or the  enforcement  of any  provision  of this  Agreement is brought
against  any party  hereto,  the  prevailing  party shall be entitled to recover
reasonable  attorneys' fees, costs and  disbursements  (in addition to any other
relief to which the prevailing party may be entitled).

              (b)  NOTICES.  Any  notice  or  other  communication  required  or
permitted to be delivered to any party under this Agreement  shall be in writing
and shall be deemed  properly  delivered,  given and received when delivered (by
hand,  by  registered  mail,  by  courier  or  express  delivery  service  or by
facsimile)  to the address or  facsimile  telephone  number set forth in Section
10.6 of the  Reorganization  Agreement or to the Escrow Agent at the address set
forth  below (or to such other  address or  facsimile  telephone  number as such
party  shall  have  specified  in a written  notice  given to the other  parties
hereto):

                   Chase Manhattan Bank and Trust, N.A.
                   101 California Street
                   Suite 2725
                   San Francisco, CA  94111-5930
                   Attention:  James Nagy
                   Facsimile:  (415) 693-8850


              The Escrow Agent may assume that any Claim Notice, Response Notice
or other notice of any kind required to be delivered to the Escrow Agent and any
other Person has been  received by such other Person if it has been  received by
the Escrow  Agent,  but the Escrow  Agent need not  inquire  into or verify such
receipt.


                                       7.
<PAGE>

              (c)  HEADINGS.  The headings  contained in this  Agreement are for
convenience  of  reference  only,  shall  not be  deemed  to be a part  of  this
Agreement and shall not be referred to in connection  with the  construction  or
interpretation of this Agreement.

              (d)  COUNTERPARTS.  This  Agreement  may be  executed  in  several
counterparts,  each of which shall constitute an original and all of which, when
taken together, shall constitute one agreement.

              (e) GOVERNING LAW. This Agreement shall be construed in accordance
with,  and  governed  in all  respects  by,  the  internal  laws of the State of
Colorado (without giving effect to principles of conflicts of laws), except that
the fiduciary duties and  responsibilities of the Escrow Agent shall be governed
by the Laws of the State of California.

              (f) SUCCESSORS AND ASSIGNS.  This Agreement  shall be binding upon
each of the parties hereto and each of their respective permitted successors and
assigns, if any. No Shareholder may assign such Shareholder's  rights under this
Agreement  without  the  express  prior  written  consent of  Parent,  provided,
however,  that upon the death of a Shareholder,  such Shareholder's rights under
this  Agreement   shall  be  transferred  to  the  person(s)  who  receive  such
Shareholder's  Parent  Common Stock under the laws of descent and  distribution.
Nothing in this  Agreement is intended to confer,  or shall be deemed to confer,
any rights or remedies  upon any person or entity other than the parties  hereto
and their  permitted  successors and assigns.  This Agreement shall inure to the
benefit of: the Shareholders; Parent; Escrow Agent and the respective successors
and assigns, if any, of the foregoing.

              (g) WAIVER.  No failure on the part of any Person to exercise  any
power, right, privilege or remedy under this Agreement, and no delay on the part
of any Person in  exercising  any power,  right,  privilege or remedy under this
Agreement,  shall operate as a waiver of such power, right, privilege or remedy;
and no single or partial exercise of any such power, right,  privilege or remedy
shall  preclude  any other or further  exercise  thereof or of any other  power,
right,  privilege or remedy.  No Person shall be deemed to have waived any claim
arising out of this Agreement,  or any power,  right,  privilege or remedy under
this  Agreement,  unless the waiver of such claim,  power,  right,  privilege or
remedy  is  expressly  set  forth in a  written  instrument  duly  executed  and
delivered on behalf of such Person;  and any such waiver shall not be applicable
or have any effect except in the specific instance in which it is given.

              (h)  AMENDMENTS.  This  Agreement  may not be  amended,  modified,
altered  or  supplemented  other  than by means  of a  written  instrument  duly
executed  and  delivered  on  behalf  of all of the  parties  hereto;  provided,
however,  that any amendment duly executed and delivered by the Securityholders'
Agent shall be deemed to have been duly  executed  and  delivered  by all of the
Shareholders.

              (i)  SEVERABILITY.  In  the  event  that  any  provision  of  this
Agreement,  or the  application  of any such  provision  to any Person or set of
circumstances,   shall  be   determined  to  be  invalid,   unlawful,   void  or
unenforceable  to  any  extent,  the  remainder  of  this  Agreement,   and  the
application of such provision to Persons or circumstances other than those as to
which it is determined to be invalid, unlawful, void or unenforceable, shall not
be impaired or otherwise affected and shall continue to be valid and enforceable
to the fullest extent permitted by law.



                                       8.
<PAGE>

              (j) PARTIES IN INTEREST.  None of the provisions of this Agreement
is  intended  to provide  any rights or  remedies  to any Person  other than the
parties hereto and their respective successors and assigns, if any.

              (k) ENTIRE  AGREEMENT.  This  Agreement  and the other  agreements
referred  to herein set forth the entire  understanding  of the  parties  hereto
relating  to the subject  matter  hereof and  thereof  and  supersede  all prior
agreements and  understandings  among or between any of the parties  relating to
the subject matter hereof and thereof.

              (l)  WAIVER  OF JURY  TRIAL.  Each of the  parties  hereto  hereby
irrevocably  waives  any and all right to trial by jury in any Legal  Proceeding
arising out of or related to this  Agreement  or the  transactions  contemplated
hereby.

              (m)  TAX   REPORTING   INFORMATION   AND   CERTIFICATION   OF  TAX
IDENTIFICATION NUMBERS.

                   (i)  The  parties   hereto  agree  that,  for  tax  reporting
purposes,  all interest on or other income,  if any,  attributable to the Escrow
Shares or any other amount held in escrow by the Escrow  Agent  pursuant to this
Agreement  shall be  allocable  to the  Shareholders  in  accordance  with their
percentage interests in the Escrow Fund set forth in Exhibit A.

                   (ii) Parent and each of the Shareholders agree to provide the
Escrow  Agent with  certified  tax  identification  numbers  for each of them by
furnishing appropriate forms W-9 (or Forms W-8, in the case of non-U.S. persons)
and other  forms and  documents  that the Escrow  Agent may  reasonably  request
(collectively, "Tax Reporting Documentation") to the Escrow Agent within 30 days
after the date hereof. The parties hereto understand that, if such Tax Reporting
Documentation  is not so certified to the Escrow Agent,  the Escrow Agent may be
required by the Internal  Revenue  Code, as it may be amended from time to time,
to withhold a portion of any interest or other income  earned on the  investment
of monies or other property held by the Escrow Agent pursuant to this Agreement.

              (n) CONSTRUCTION.

                   (i) For  purposes  of this  Agreement,  whenever  the context
requires:  the singular  number shall  include the plural,  and vice versa;  the
masculine  gender shall  include the feminine and neuter  genders;  the feminine
gender shall  include the masculine  and neuter  genders;  and the neuter gender
shall include the masculine and feminine genders.

                   (ii) The parties  hereto agree that any rule of  construction
to the effect that  ambiguities  are to be resolved  against the drafting  party
shall not be applied in the construction or interpretation of this Agreement.

                   (iii) As used in this  Agreement,  the  words  "include"  and
"including,"  and  variations  thereof,  shall  not be  deemed  to be  terms  of
limitation,  but rather  shall be deemed to be  followed  by the words  "without
limitation."




                                       9.
<PAGE>


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

                                  MESSAGEMEDIA, INC.


                                  ----------------------------------------------
                                  By:
                                     -------------------------------------------
                                  Title:
                                        ----------------------------------------


                                  SECURITYHOLDERS' AGENT:

                                  ----------------------------------------------

                                  ------------------------------


                                  CHASE MANHATTAN BANK AND TRUST, N.A.


                                  ----------------------------------------------
                                  By:  James Nagy
                                  Title:





                                      10.

<PAGE>


                                    EXHIBIT A


- --------------------------------------------------------------------------------
Name and Address of Shareholder  Number of Escrow   Shareholder's percentage
                                 Shares             interest in the Escrow Fund
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------


                                      11.
<PAGE>


                                    EXHIBIT B
                            ESCROW FEES AND EXPENSES


















                                      12.



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