MCAFEE ASSOCIATES INC
8-K, 1997-03-14
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<PAGE>   1


                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                        SECURITIES EXCHANGE ACT OF 1934




DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED):   FEBRUARY 28, 1997


                            McAFEE ASSOCIATES, INC.
- -------------------------------------------------------------------------------
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)


      Delaware                       0-20558             77-0316593
- -------------------------------------------------------------------------------
(State or other jurisdiction       (Commission          (IRS Employer
  of incorporation)                File Number)      Identification No.)


2710 Walsh Avenue, Santa Clara, California                 95051
- -------------------------------------------------------------------------------
(Address of principal executive offices)                 (Zip Code)


Company's telephone number, including area code:   (408) 988-3832
                                                -------------------------------



                                      Same
- -------------------------------------------------------------------------------
         (Former name or former address, if changed since last report.)



                           Exhibit Index on Page Five



<PAGE>   2

ITEM 5.          OTHER EVENTS

                 FSA Combination Corp. ("Sub"), a Delaware corporation and an
indirect subsidiary of McAfee Associates, Inc. ("McAfee" or the "Company"), a
Delaware corporation, acquired Kabushiki Kaisha Jade ("Jade"), a Japanese
corporation, in exchange for shares of Common Stock of McAfee (the "Exchange").
The Exchange was accomplished pursuant to the terms of a Stock Exchange
Agreement (attached as Exhibit 2.1 hereto), dated January 13, 1997 (the "Stock
Exchange Agreement"), by and among the Company, Sub, Jade and all the
shareholders of Jade (collectively, the "Shareholders") and was consummated
after trading closed on February 28, 1997.  The Exchange will be recorded as a
pooling of interests for accounting purposes.  The terms of the Stock Exchange
Agreement reflected the arm's-length negotiations among the parties.

                 Pursuant to the terms of the Stock Exchange Agreement, all
shares of issued and outstanding par value stock of Jade were exchanged for an
aggregate of 336,071 shares of Common Stock of McAfee.  Under the terms of the
Stock Exchange Agreement, approximately ten percent (10%) of the shares of the
Company's Common Stock to be received by the Shareholders were placed in an
escrow account with Cupertino National Bank & Trust as security for the
agreement of the Shareholders to indemnify McAfee for certain contingencies.

                 Under the terms of the Stock Exchange Agreement, the
Shareholders were granted certain registration rights in connection with the
Common Stock of the Company received by the Shareholders in the Exchange
pursuant to a Registration Rights Agreement (attached as Exhibit 4.1 hereto),
dated January 13, 1997, by and between the Company and the Shareholders.

                 A copy of the press release announcing that the Company
entered into the Stock Exchange Agreement is attached as Exhibit 99.1 and is
incorporated herein by reference.



<PAGE>   3

        Exhibit
         Number       Description



          2.1         Stock Exchange Agreement, dated January 13, 1997, by and
                      among McAfee, Sub, Jade and the Shareholders.



          4.1         Registration Rights Agreement, dated January 13, 1997,
                      by and between McAfee and the Shareholders.



         99.1         Press Release, dated January 30, 1997, announcing that
                      McAfee entered into the Stock Exchange Agreement.








<PAGE>   4

                                   SIGNATURES

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







                                       McAFEE ASSOCIATES, INC.





Dated:  March 14, 1997                 By:  /s/ Prabhat Goyal
                                          -------------------------------------
                                            Prabhat Goyal
                                            Chief Financial Officer, Vice
                                            President of Administration,
                                            Treasurer and Secretary
<PAGE>   5
                                 EXHIBIT INDEX

                                                                    Sequentially
Exhibit                                                               Numbered
Number       Description                                                Page
- ------       -----------                                            ------------


2.1          Stock Exchange Agreement, dated January 13, 1997,
             by and among McAfee, Sub, Jade and the Shareholders.

4.1          Registration Rights Agreement, dated January 13, 1997,
             by and between McAfee and the Shareholders.

99.1         Press Release, dated January 30, 1997, announcing
             that McAfee entered into the Stock Exchange Agreement.



















<PAGE>   1
                                                                     EXHIBIT 2.1




                            STOCK EXCHANGE AGREEMENT

                 Pursuant to Item 601(b)(2) of Regulation S-K,
          the exhibits and schedules to this Stock Exchange Agreement
       have been omitted.  Such exhibits and schedules will be submitted
            to the Securities and Exchange Commission upon request.












<PAGE>   2





                         ______________________________

                            STOCK EXCHANGE AGREEMENT

                                     AMONG

                            MCAFEE ASSOCIATES, INC.,

                             FSA COMBINATION CORP.,

                           KABUSHIKI KAISHA JADE AND

                   THE SHAREHOLDERS OF KABUSHIKI KAISHA JADE

                                JANUARY 13, 1997

                         ______________________________
<PAGE>   3



                            STOCK EXCHANGE AGREEMENT

                 This STOCK EXCHANGE AGREEMENT (the "Agreement"), dated as of
January 13, 1997, is entered into by and among McAfee Associates, Inc., a
Delaware corporation ("McAfee"), FSA Combination Corp., a Delaware corporation
and an indirect subsidiary of McAfee ("Sub"), Kabushiki Kaisha Jade, a Japanese
corporation ("Jade"), and the shareholders of Jade ("Shareholders"), all of
whom are listed on the Schedule of Shareholders attached hereto as Schedule A.

                 WHEREAS, the Boards of Directors of McAfee, Sub and the
Shareholders of Jade deem it advisable and in the best interests of themselves
and their respective stockholders that Sub acquire all the outstanding stock of
Jade in exchange for shares of Common Stock of McAfee (the "Exchange"); and

                 WHEREAS, the Exchange is intended to be treated as a "pooling
of interests" under United States generally accepted accounting principles ("US
Gaap");

                 NOW, THEREFORE, in consideration of the foregoing and the
respective representations, warranties, covenants and agreements, the parties
agree as set forth below.

                                   ARTICLE I


                                  THE EXCHANGE



                 1.1      Shares Being Exchanged. Subject to the terms and
conditions of this Agreement, at the Closing (as defined below), each
Shareholder agrees to sell, assign, and deliver to Sub that number of shares of
par value stock of Jade ("Jade Stock") set forth opposite such Shareholder's
name on the Schedule of Shareholders in exchange for that number of shares of
Common Stock of McAfee ("McAfee Stock") as provided in Section 1.3 hereof. The
parties hereby agree that Sub may assign its obligations hereunder to another
indirect subsidiary of McAfee.

                 1.2      Closing.  The closing of the Exchange (the "Closing")
will take place on a date to be specified by McAfee and Jade which shall be no
later than the second business day after satisfaction of the latest to occur of
the conditions set forth in Article VII of this Agreement, but in any event no
later than March 1, 1997 (the "Closing Date"), at the offices of White & Case,
American International Building, 20-5, Ichibancho, Chiyoda-Ku, Tokyo 102,
Japan, unless another place is agreed to in writing by McAfee and Jade.

                 1.3      Exchange of Shares.

                          (a)     Subject to the provisions of an escrow as
provided in Article X hereof (the "Escrow"), each share of Jade issued and
outstanding immediately prior to the Closing, which is 200 shares in the
aggregate, shall be tendered to Sub and exchanged for that number of shares of
McAfee Stock which results by dividing (i) the quotient that results from
dividing US$17,000,000 by the average closing price of McAfee's common stock as
quoted on Nasdaq National Market during the twenty (20) consecutive trading
days ending two (2) business days prior to the date of the first press release
issued by McAfee concerning the


<PAGE>   4

transaction as contemplated by this Agreement by (ii) the total number of
shares of Jade Stock outstanding immediately prior to closing (each an
"Exchange Share" and collectively the "Exchange Shares").

                          (b)     No fractional shares of McAfee Stock shall be
issued in the exchange. In the event the Exchange would result in the
Shareholder being entitled to a fraction of a share of McAfee Stock, such
fractional share shall be rounded down to the nearest whole number.

                          (c)     At the Closing, the Shareholders shall
deliver to Sub, against delivery from Sub to Shareholders of the stock
certificates representing the Exchange Shares to be issued in the Exchange
(subject to the Escrow Agreement), certificates representing all outstanding
shares of Jade Stock in form satisfactory to McAfee and its counsel to evidence
the transfer to McAfee of all of Shareholders' right, title and interest
therein.

                 1.4      Pooling of Interests.  The parties intend that the
Exchange be treated as a "pooling of interests" under US Gaap.

                 1.5      Currency.  Unless otherwise specified, all references
in this Agreement "cash," "cent," "dollars," or "$" shall mean United States
dollars.

                                   ARTICLE II

            REPRESENTATIONS AND WARRANTIES OF JADE AND SHAREHOLDERS

                 Jade and the Shareholders hereby represent and warrant to
McAfee that the statements contained in this Article II are true and correct.
The parties agree that McAfee shall take no action against Jade or the
shareholders in respect of liability amounts arising under the representation
and warranties in this Section so long as the accrued amount thereof is less
than Y.10,000,000.

                 2.1      Organization of Jade.  Jade is a corporation duly
organized and validly existing under the laws of Japan, has all requisite
corporate power to own, lease and operate its property and to carry on its
business as now being conducted, and is duly qualified to do business in each
jurisdiction in which the failure to be so qualified would have a material
adverse effect on the business, assets (including intangible assets), financial
condition or results of operations (a "Material Adverse Effect") of Jade.  Jade
does not directly or indirectly own any equity or similar interest in, or any
interest convertible into or exchangeable or exercisable for an equity or
similar interest in, any other entity.

                 2.2      Capitalization.  The entire authorized capital stock
of Jade consists of 800 shares of par value stock of a single class of which
200 are issued and outstanding and there are no options, warrants, equity
securities, calls, rights, commitments or agreements of any character to which
Jade or any Shareholder is a party or by which any of them is bound.  All of
the outstanding shares of Jade Stock have been duly authorized and are validly
issued, fully paid and nonassessable.  The Shareholders own all of the
outstanding shares of Jade Stock, free and clear of any liens, claims,
encumbrances, or proprietary interests of any third party. There are no
obligations, contingent or otherwise, of Jade to repurchase, redeem or
otherwise acquire any shares of Jade Stock, or make any investment (in the form
of a loan,





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<PAGE>   5

capital contribution or otherwise) in any other entity There are no voting
trusts or other agreements or understandings to which Jade or any Shareholder
is a party with respect to the voting of the capital stock.

                2.3       Authority; No Conflict: Required Filings and
Consents.

                          (a)     Jade and the Shareholders have all requisite
power, corporate or otherwise, and authority to enter into and deliver each of
this Agreement, the Executive Services Agreement, the Escrow Agreement, the
Non-Competition Agreement, the Registration Rights Agreement, the Affiliates
Agreements (all as defined herein) and such other documents, agreements or
instruments contemplated hereunder or thereunder (collectively the "Transaction
Documents") to which they are a party and to carry out their respective
obligations and consummate the transactions contemplated hereunder and
thereunder. This Agreement has been duly executed and delivered by Jade and the
Shareholders and constitutes the valid and binding obligation of Jade and the
Shareholders, enforceable against each of them in accordance with its terms.
The other Transaction Documents, when duly executed and delivered by Jade and
the Shareholders, will result in McAfee owning all of the outstanding shares of
Jade Stock, free and clear of any liens, claims, encumbrances, or proprietary
interests of any third party, and will constitute valid and binding obligations
of Jade and the Shareholders, enforceable in accordance with their respective
terms.

                          (b)     The execution and delivery of this Agreement
and the other Transaction Documents by Jade and the Shareholders do not, and
the consummation of the transactions contemplated by this Agreement and the
other Transaction Documents will not, (i) conflict with, or result in any
violation or breach of any provision of the Articles of Incorporation of Jade,
(ii) result in any violation or breach of, or constitute (with or without
notice or lapse of time, or both), a default (or give rise to a right of
termination, cancellation or acceleration of any obligation or loss of any
benefit) under, any of the terms, conditions or provisions of any agreement,
instrument or obligation to which any of the Shareholders or Jade is a party or
by which any of their properties or assets may be bound, or (iii) conflict with
or violate any permit, concession, franchise, national, prefectural or local
governmental license, judgment, order, decree or law, applicable to the
Shareholders, Jade or any of their properties or assets, except in the case of
(ii) and (iii) for any such breaches, conflicts, violations or losses of
benefits which would not have a Material Adverse Effect on Jade.
Notwithstanding the foregoing, the parties acknowledge that the entry into this
transaction will give S&S International Ltd. the right to terminate its
agreement dated October 25, 1993 with Jade as extended. No consent of any
person who is a party to a contract to which any of the Shareholders or Jade is
a party is required to be obtained on the part of Jade to permit the
transactions contemplated herein, except where the failure to obtain such
consent would not have a Material Adverse Effect on Jade.

                          (c)     Except for the obtaining of a license under
the Foreign Exchange and Foreign Trade Control Law of Japan which has been
obtained as of the date hereof, no consent registration, or filing with, any
court, administrative agency or commission or other governmental authority or
instrumentality ("Governmental Entity") is required by or with respect to Jade
or any Shareholder in connection with the execution and delivery of this
Agreement, the other Transactional Documents, or the consummation of the
transactions contemplated hereby and thereby, except for those already obtained
or except for





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<PAGE>   6

consents, authorizations filings, approvals and registrations which if not
obtained or made, would not have a Material Adverse Effect on Jade.

                 2.4      Jade Financial Statements.  Jade has delivered to
McAfee (i) Jade's unaudited balance sheet as of June 30, 1996 together with an
unaudited profit and loss statement and statement of shareholders' equity for
the twelve-month period then ended, and Jade's unaudited interim balance sheet
as of November 30, 1996 together with an unaudited interim profit and loss
statement for the five-month period then ended (collectively, the "Jade
Financial Statements").  The Jade Financial Statements agree with Jade's books
and records, have been prepared in accordance with Japanese generally accepted
accounting principles ("Japanese Gaap") consistently applied and fairly present
in all material respects the financial position of Jade as of their respective
dates and the results of Jade's operations for the periods then ended, subject
to normal year-end adjustments and except that the unaudited statements may not
contain the notes required by Japanese Gaap.

                 2.5      No Undisclosed Liabilities.  Jade does not have any
liabilities, either accrued or contingent (whether or not required to be
reflected in the Jade Financial Statements in accordance with Japanese Gaap),
and whether due or to become due, which individually or in the aggregate, would
be reasonably likely to have a Material Adverse Effect on Jade or, in any
event, exceed Y.1,000,000, other than (i) liabilities reflected in the Jade
Financial Statements, (ii) liabilities specifically described in this Agreement
or the Jade Disclosure Schedule 2.5, and (iii) normal or recurring liabilities
incurred since the date of the Jade Financial Statements in the ordinary course
of business consistent with past practices and are not material to Jade.

                 2.6      Accounts Receivable.  The accounts receivable shown
on the unaudited balance sheet ending November 30, 1996 contained in the Jade
Financial Statements arose in the ordinary course of business and have been
collected or are collectible in the book amounts thereof, less an amount not in
excess of the allowance for doubtful accounts and returns provided for in such
balance sheet. Except as expressly noted in the Jade Disclosure Schedule 2.6,
the accounts receivable of Jade arising after the date of the Jade Financial
Statements and prior to the Closing arose in the ordinary course of business
and have been collected or are collectible in the book amounts thereof.

                 2.7      Absence of Certain Changes or Events.  Since November
30, 1996, Jade has conducted its business in the ordinary course and in a
manner consistent with past practices and, since such date, Jade has not
suffered any damage, destruction, or loss or any material adverse change in its
financial condition, its results of operations or its business, or any material
adverse changes in its unaudited balance sheet at November 30, 1996 (analyzed
as if prepared according to Japanese Gaap).

                 2.8      Taxes.

                          (a)     Except for the unpaid withholding tax of
Y.5,873,121 on the payment to S&S International, Jade has prepared and timely
filed all income and other tax returns and reports required to be filed at or
before the date of this Agreement ("Returns") relating to any and all Taxes
concerning or attributable to Jade, or its operations and such Returns are true
and correct in all material respects and have been completed in all material
respects in accordance with applicable law.  "Tax" or, collectively, "Taxes,"
shall mean any





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<PAGE>   7

and all material national, prefectural, local and foreign taxes, assessments
and other governmental charges, duties, impositions and liabilities, including
taxes based upon or measured by gross receipts, income, profits, sales, use and
occupation, and value added, ad valorem, transfer, franchise, withholding,
payroll, recapture, employment, excise and property taxes, together with all
interest, penalties and additions imposed with respect to such amounts and any
obligations under any agreements or arrangements with any other person with
respect to such amounts and including any liability for taxes of a predecessor
entity. There are no tax liens on any property or assets of Jade. No state of
facts exists or has existed which would be reasonably likely to constitute
grounds for the assessment of any penalty or of any Material Tax Liability (as
defined below) beyond that shown on the respective Returns. There are no
outstanding agreements or waivers extending the statutory period of limitation
applicable to any Return for any period. For purposes of this Section 2.8,
"Material Tax Liability" shall be defined as liability in excess Y.1,000,000 in
the aggregate.

                          (b)     Jade, as of the date of this Agreement:  (i)
has paid all Taxes it is required to pay prior to the Closing and (ii) has
withheld with respect to its employees all income taxes, and other Taxes
required to be withheld, except where any failure to make such payment or
withholding would not be reasonably likely to have a Material Adverse Effect on
Jade.

                 2.9      Intellectual Property.

                          (a)     Jade owns, is licensed or otherwise possesses
legally enforceable rights to use, all patents, trademarks, trade names,
service marks, copyrights, moral rights ("chosakusha jinkaku-ken"), trade
secrets, processes, formulae, methods, schematics, technology, know-how,
computer software programs or applications, tangible or intangible proprietary
information or material, and other intellectual property rights, including
without limitation all rights arising under Articles 21-28 of the Japan
Copyright Law (all of which are referred to as the "Intellectual Property
Rights"), and any applications for Intellectual Property Rights that are
necessary to (i) conduct the business of Jade as currently conducted and as
proposed to be conducted to the Closing, or (ii) to distribute new products or
versions of existing products planned for distribution (including without
limitation all distribution rights), free and clear of all liens, claims or
encumbrances (the "Jade Intellectual Property Rights").  The Jade Disclosure
Schedule 2.9(a) contains an accurate and complete list of (i) all patents and
patent applications and all registered trademarks, registered copyrights,
registered trade names and service marks used by Jade in its business as
conducted and as proposed to be conducted to the Closing, including the
jurisdictions in which each such item has been issued or registered or in which
any such application for such issuance and registration has been filed (ii) all
licenses, sublicenses and other agreements pursuant to which any person is
authorized to use any Jade Intellectual Property Rights, and (iii) all
licenses, sublicenses and other agreements as to which Jade is a party and
pursuant to which Jade is authorized to use any third party technology, trade
secret, know-how, process, patents, trademarks or copyrights, including
software ("Licensed Intellectual Property"), which are incorporated in, are, or
form a part of any product of Jade currently distributed or currently planned
for distribution ("Jade Product").  The Licensed Intellectual Property grants
Jade such rights as are employed in or necessary to the business of Jade as
conducted and as proposed to be conducted to the Closing and are valid and
enforceable and in full force and effect.





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<PAGE>   8

                          (b)     Jade is not, nor will it be as a result of
the execution and delivery of this Agreement or the performance of its
obligations under this Agreement, in breach of any license, sublicense or other
agreement relating to the Jade Intellectual Property Rights or any Licensed
Intellectual Property.

                          (c)     All Intellectual Property Rights claimed by
or issued to Jade or which relate to Jade Products are valid and subsisting.
Jade (i) has not received notice that it has been sued in any suit, action or
proceeding which involves a claim of infringement of any Intellectual Property
Rights or other proprietary right of any third party; (ii) has no knowledge
that the manufacturing, marketing, licensing, sale or other exploitation of
Jade Products infringes any Intellectual Property Rights or other proprietary
right of any third party; and (iii) has no knowledge of any claim challenging
or questioning the validity or effectiveness of any of its licenses or
agreements relating thereto or to any Jade Intellectual Property Right. There
is no valid basis for any claim of the type specified in the immediately
preceding sentence which would be reasonably likely in any material way to
relate to or interfere with the continued enhancement and exploitation by Jade
of any of the Jade Products.  None of the Jade Products nor the use or
exploitation of any Intellectual Property Rights by Jade in its current
business infringes on the rights of, or constitutes misappropriation of, any
Intellectual Property Rights of any third person or entity, including without
limitation any patent, trade secret, copyright, trademark, trade name, service
marks, moral rights ("chosakusha jinkaku-ken"), or other intellectual property
rights, including without limitation all rights arising under Articles 21-28 of
the Copyright Law of Japan.

                          (d)     Jade has not granted any third party any
right to manufacture or reproduce any of the Jade Products or any adaptations,
translations, or derivative works based on the Jade Products or any portion
thereof, except as stated in the Jade Disclosure Schedule 2.9(d) Part A.  Jade
has disclosed to McAfee the existence of all subcontractor arrangements (if
any) with respect to Jade Intellectual Property Rights or Jade Products which
it has had at any time in the past or has in the present, and has provided
copies of all such written subcontractor agreements (if any) to McAfee or its
legal counsel. Except as expressly noted in the Jade Disclosure Schedule 2.9(d)
Part B, all subcontractors of Jade (if any) have executed express agreements
assigning all interests in Intellectual Property Rights with respect to Jade
Products to Jade. Except with respect to the rights of third parties to the
Licensed Intellectual Property, no third party has any right to manufacture,
reproduce, distribute, market or exploit any works or materials of which any of
the Jade Products are a "derivative work" as that term is defined in Article
2(1)(xi) of the Copyright Law of Japan. Jade has not granted any third party
any right to use or distribute the source code version of any Jade Product.

                          (e)     All designs, drawings, specifications, source
code, object code, documentation, flow charts and diagrams incorporating,
embodying or reflecting any of the Jade Products at any stage of their
development (the "Jade Components") were written, developed and created solely
and exclusively by employees of Jade without the assistance of any third party
or entity or were created by third parties who assigned ownership of their
Intellectual Property Rights to Jade by means of valid and enforceable
consultant confidentiality agreement and/or invention assignment agreements,
copies of which have been delivered to McAfee and each such agreement contains
an express waiver by each such





                                       6
<PAGE>   9

employee in favor of Jade of any and all rights of an author under Articles 18
to 20 of the Copyright Law of Japan.

                          (f)     No employee of Jade is in violation of any
term of any employment contract, patent disclosure agreement or any other
contract or agreement relating to the relationship of any such employee with
Jade or, to Jade's knowledge, any other party because of the nature of the
business conducted by Jade or proposed to be conducted by Jade to the Closing.

                          (g)     Except as noted in the Jade Disclosure
Schedule 2.9(g), each person presently or previously employed by Jade
(including independent contractors, if any) with access to confidential
information is bound by an express obligation of confidentiality pursuant to
the terms of Jade's work rules.  Such confidentiality and non-disclosure
obligations constitute valid and binding obligations of Jade and such person,
enforceable in accordance with their respective terms.  Neither such
undertakings, nor the carrying on of Jade's business as employees by such
persons, nor the conduct of Jade's business as currently anticipated, will
conflict with or result in a breach of the terms, conditions or provisions of
or constitute a default under any contract, covenant or instrument under which
any of such persons is obligated. Jade is not aware that any employee, former
employee, independent contractor or subcontractor of Jade has disclosed any
Jade Intellectual Property Rights to a third party.

                 2.10     Agreements, Contracts and Commitments.  Section 2.10 
of the Jade Disclosure Schedule sets forth a list of any written or oral
contracts, understandings, agreements, proposed transactions, and other
instruments granting any rights to Jade Intellectual Property Rights or
providing payments from or to Jade of more than Y.3,000,000. (collectively,
"Major Contracts"), copies of each of which have been delivered to McAfee's
counsel. All Major Contracts are valid, binding, in full force and effect, and
enforceable by Jade in accordance with their respective terms.

                 2.11     Labor Difficulties.  Jade is not in material
violation of any applicable laws respecting employment and employment
practices, terms and conditions of employment, and wages and hours.

                 2.12     Trade Regulation.  Jade has not been the subject of
an investigation by the Fair Trade Commission of Japan with respect to any of
its distribution or competitive practices nor has any such investigation been
threatened or discussed with Jade by any governmental authority or competitor.
Jade has not within the past three years terminated its relationship with or
refused to ship Jade products to any dealer, distributor, OEM, third party
marketing entity or customer which had theretofore paid or been obligated to
pay Jade in excess of Y.1,000,000 over any consecutive twelve (12) month
period. All of the prices charged by Jade in connection with the marketing or
sale of any products or services have been in compliance with all applicable
laws and regulations.  No claims have been communicated or, to Jade's
knowledge, threatened against Jade with respect to wrongful termination of any
dealer, distributor or any other marketing entity, discriminatory pricing,
price fixing, unfair competition, false advertising, or any other material
violation of any laws or regulations relating to anti-competitive practices or
unfair trade practices of any kind, and,





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<PAGE>   10

to Jade's knowledge, no specific situation, set of facts, or occurrence
provides any valid basis for any such claim.

                 2.13     Litigation.  There is no action, suit or proceeding, 
claim, arbitration or investigation against Jade pending or, to Jade's
knowledge, threatened, nor is there any judgment, decree, injunction, rule or
order of any governmental entity or arbitrator outstanding against Jade.

                 2.14     Employee Benefit Plans.  Other than as set forth in
the Jade Disclosure Schedule 2.14(iii), Jade is not a party to any oral or
written (i) union or collective bargaining agreement, (ii) agreement with any
officer or other key employee of Jade, the benefits of which are contingent, or
the terms of which are materially altered, upon the occurrence of a transaction
involving Jade of the nature contemplated by this Agreement, (iii) agreement
with any officer of Jade providing any term of employment, severance, or
compensation guarantee extending for a period longer than six months from the
date hereof or for the payment of compensation in excess of Y.5,000,000 per
annum, or (iv) agreement or plan, any of the benefits of which will be
increased, or the vesting of the benefits of which will be accelerated, by the
occurrence of any of the transactions contemplated by this Agreement or the
value of any of the benefits of which will be calculated on the basis of any of
the transactions contemplated by this Agreement. Except as described in the
Jade Disclosure Schedules 2.14(iii) and 2.14(i)(B), (i) there is no unfunded
prior service cost with respect to any employee benefit or fringe benefit
plans, whether formal or informal, maintained by Jade, and (ii) Jade has no
bonus, deferred compensation, pension, profit-sharing, retirement, stock
purchase, stock option, or other employee benefit or fringe benefit plans,
whether formal or informal.

                 2.15     Compliance with Laws.  Jade has complied with, is not
in violation of, and has not received any notices of violation with respect to,
any national, prefectural or local statute, law or regulation or applicable
laws and regulations of foreign governments with respect to the conduct of its
business, or the ownership or operation of its business, except for failures to
comply or violations which would not be reasonably likely to have a Material
Adverse Effect on Jade.  All licenses, franchises, permits and other
governmental authorizations held by Jade are valid and sufficient for the
business presently carried on by Jade.

                 2.16     No Misrepresentation.  No representation or warranty
by Jade or the Shareholders in this Agreement, any other Transaction Document,
nor any certificate or schedule furnished or to be furnished by or on behalf of
Jade or the Shareholders pursuant to this Agreement, when taken together with
the foregoing, contains or shall contain any untrue statement of material fact
or omits or shall omit to state a material fact required to be stated therein
or necessary in order to make such statements, in light of the circumstances
under which they were made, not misleading. Jade has delivered true and
complete copies of all documents requested by McAfee and which are referred to
in this Article II or in any schedule delivered by Jade to McAfee.

                 2.17     Restrictions on Business Activities.  There is no
judgment, injunction, order or decree binding on Jade which has or reasonably
would be expected to have the effect of prohibiting or materially impairing any
current business practice of Jade, or any acquisition of material property by
Jade.





                                       8
<PAGE>   11

                 2.18     No Brokers.  Jade has not and will not incur any
brokerage, finder's, financial advisory, investment banking or similar fee in
connection with the transactions contemplated by this Agreement.  The
Shareholders shall bear any such fees incurred for their own behalf.

                 2.19     Pooling Matters.  Neither Jade nor any of its
affiliates has taken or agreed to take any action that (without giving effect
to this Agreement, the transactions contemplated hereby or actions related
thereto, or any action taken or agreed to be taken by McAfee or any of its
affiliates) would adversely affect the ability of McAfee to account for the
business combination to be effected by the Exchange as a "pooling of interests"
under US Gaap where such conditions for pooling of interest accounting are as
defined in Exhibit 2.19.

                 2.20     Books and Records. The books, records and accounts of
Jade (a) have been maintained at Jade's principal place of business in
accordance with good business practices on a basis consistent with prior years,
(b) are stated in reasonable detail and accurately and fairly reflect the
transactions and dispositions of the assets of Jade, and (c) accurately and
fairly reflect the basis for the Jade Financial Statements in accordance with
the general practice of businesses in Japan of similar size and type.  Jade has
devised and maintains a system of internal accounting controls to provide
reasonable assurances that, in light of the general practice of business in
Japan of similar size and type, (a) transactions are executed in accordance
with management's general or specific authorization, and (b) transactions are
recorded as necessary (i) to permit preparation of financial statements in
conformity with Japanese Gaap, and (ii) to maintain accountability for assets.

                 2.21     Assets of Shareholders.  The aggregate assets of Jade
and the Shareholders, excluding the value of the Jade Stock and primary
residences of the Shareholders, is less than $10,000,000.



                                  ARTICLE III



                 REPRESENTATIONS AND WARRANTIES OF SHAREHOLDERS

        Each Shareholder hereby represents and warrants to McAfee that:

                 3.1      Purchase for Own Account.  The Exchange Shares of
McAfee to be received in the Exchange will be acquired for investment for the
Shareholder's own account, not as a nominee or agent, and not with a view to
the distribution of any part thereof, and such Shareholder has no present
intention of selling, granting any participation in, or otherwise distributing
the Exchange Shares. By executing this Agreement, such Shareholder further
represents that the Shareholder does not have any contract, undertaking,
agreement or arrangement with any person to sell, transfer or grant
participations to such person or to any third person, with respect to any of
the Exchange Shares.

                 3.2      Restricted Securities.  Each Shareholder understands
that the Exchange Shares are characterized as "restricted securities" under the
U.S. federal securities laws inasmuch as they are being acquired in a
transaction not involving a public offering and that under such laws and
applicable regulations such securities may be resold without registration under
the Securities Act of 1933, as amended (the "Act"), only in certain limited
circumstances.





                                       9
<PAGE>   12

                 3.3      Further Limitations on Disposition.  Without in any
way limiting the representations set forth above, such Shareholder further
agrees not to make any disposition of all or any portion of the Exchange Shares
unless and until:

                          (a)     There is then in effect a registration
statement under the Act governing such proposed disposition and such
disposition is made in accordance with such registration statement; or

                          (b)     Such Shareholder shall have notified McAfee
of the proposed disposition and shall have furnished McAfee with a detailed
statement of the circumstances surrounding the proposed disposition, and if
reasonably requested by McAfee, such Shareholder shall have furnished McAfee
with an opinion of counsel, reasonably satisfactory to McAfee that such
disposition will not require registration of such shares under the Act. It is
agreed that McAfee will not require opinions of counsel for transactions made
pursuant to Rule 144 except in unusual circumstances.

                 3.4      Legends.  It is understood that the certificates
evidencing the Exchange Shares shall bear the following legend:

                 "These securities have not been registered under the
                 Securities Act of 1933, as amended. They may not be sold,
                 offered for sale, pledged or hypothecated in the absence of
                 (i) a registration statement in effect with respect to the
                 securities under such Act, or (ii) an opinion of counsel
                 satisfactory to the Company that such registration is not
                 required or (iii) unless sold pursuant to Rule 144 of such
                 Act."

                 3.5      Foreign Exchange Notification.  Each Shareholder has
filed a prior notification with the Bank of Japan regarding the acquisition of
Exchange Shares as required under the Foreign Exchange and Foreign Trade
Control Law of Japan, and the subordinate regulations promulgated thereunder,
and has received a clearance in respect of the acquisition of McAfee shares
contemplated hereby.

                                   ARTICLE IV

                    REPRESENTATIONS AND WARRANTIES OF McAFEE

                 McAfee represents and warrants to Jade that the statements
contained in this Article IV are true and correct.

                 4.1      Organization and Good Standing.  McAfee is a
corporation duly organized, validly existing and in good standing under the
laws of the jurisdiction of its incorporation, has all requisite corporate
power to own, lease and operate its property and to carry on its business as
now being conducted and as proposed to be conducted, and is duly qualified to
do business and is in good standing as a foreign corporation in each
jurisdiction in which the failure to be so qualified would have a Material
Adverse Effect on McAfee.

                 4.2      Authority; No Conflict; Required Filings and
Consents.

                          (a)     McAfee has or will have all requisite
corporate power and authority to enter into this Agreement and the other
Transaction Documents to which it is a





                                       10
<PAGE>   13

party and to carry out its obligations and consummate the transactions
contemplated hereunder and thereunder. The execution and delivery of this
Agreement and the Transaction Documents and the consummation of the
transactions contemplated hereby and thereby have been or will have been duly
authorized by all necessary corporate action on the part of McAfee.  This
Agreement has been duly executed and delivered by McAfee and constitutes the
valid and binding obligation of McAfee, enforceable against it in accordance
with its terms.  The other Transaction Documents, when duly executed and
delivered by McAfee, will constitute valid and binding obligations of McAfee,
enforceable in accordance with their respective terms.

                          (b)     The execution and delivery of this Agreement
and the other Transaction Documents by McAfee do not, and the consummation of
the transactions contemplated by this Agreement and the other Transaction
Documents will not, (i) conflict with, or result in any violation or breach of
any provision of the Certificate of Incorporation or Bylaws of McAfee, (ii)
result in any violation or breach of, or constitute (with or without notice or
lapse of time, or both) a default (or give rise to a right of termination,
cancellation or acceleration of any obligation or loss of any benefit) under
any of the terms, conditions or provisions of any note, bond, mortgage,
indenture, lease, contract or other agreement, instrument or obligation to
which McAfee is a party or by which either of them or any of their properties
or assets may be bound, or (iii) conflict with or violate any permit,
concession, franchise, license, judgment, order, decree, statute, law,
ordinance, rule or regulation applicable to McAfee or any of its properties or
assets, except in the case of (ii) and (iii) for any such breaches, conflicts,
violations, defaults, terminations, cancellations, accelerations or losses of
benefits which would not be reasonably likely to have a Material Adverse Effect
on McAfee.  No consent of any person who is a party to a contract that is
material to McAfee's business is required to be obtained on the part of McAfee
to permit the transactions contemplated herein, except where the failure to
obtain such consent would not have a Material Adverse Effect on McAfee.

                          (c)     No consent, approval, order or authorization
of, or registration, declaration or filing with, any Governmental Entity is
required by or with respect to McAfee in connection with the execution and
delivery of this Agreement or the consummation of the transactions contemplated
hereby except for consents, authorizations, filings, approvals and
registrations which, if not obtained or made, would not be reasonably likely to
have a Material Adverse Effect on McAfee.

                 4.3      Litigation.  There is no action, suit or proceeding,
claim, arbitration or investigation against McAfee pending, or to McAfee's
knowledge, threatened, which would be reasonably likely to have a Material
Adverse Effect on the ability of McAfee to consummate the transactions
contemplated by this Agreement or the other Transaction Documents.

                                   ARTICLE V

                              CONDUCT OF BUSINESS

                 5.1      Covenants of Jade.  During the period from the date
of this Agreement and continuing until the earlier of the termination of the
Agreement or the Closing, Jade agrees (except to the extent that McAfee shall
otherwise consent in writing), to carry on its





                                       11
<PAGE>   14

business in the usual, regular and ordinary course in substantially the same
manner as previously conducted, to pay its debts and taxes when due, subject to
good faith disputes over such debts or taxes, to pay or perform other
obligations when due, subject to good faith disputes over such obligations,
and, to the extent consistent with such business, use all reasonable efforts
consistent with past practices and policies to preserve intact its present
business organization, keep available the services of its present officers and
key employees and preserve its relationships with customers, suppliers,
distributors, licensors, licensees, and others having business dealings with
it, to the end that its goodwill and ongoing businesses shall not be impaired
in any material respect at the Closing. Jade shall promptly notify McAfee of
any event or occurrence not in the ordinary course of business of Jade, it
being understood that the existing commercial debts of Jade set forth in
Section 6.4 below may be repaid by Jade so that the guarantees and third party
mortgage provided by Seiji Murakami ("Murakami") as security for such existing
commercial debts may be discharged by Shizuoka Shinyo Kinko and Shizuoka Bank.
Except as expressly contemplated by this Agreement, Jade shall not, without the
prior written consent of McAfee:

                          (a)     Transfer or license to any person or entity
or otherwise extend, amend or modify any rights to the Jade Intellectual
Property Rights other than in the ordinary course of business consistent with
past practices;

                          (b)     Enter into or amend any agreements pursuant 

to which any third party is granted exclusive marketing or manufacturing rights
with respect to any Jade Product;

                          (c)     Other than in the ordinary course of 
business, enter into or amend any agreement providing for Jade to pay royalties
to any third party other than the licensing of Commercial Software. "Commercial
Software" means packaged commercially available software programs generally
available in a shrink-wrap format through retail channels which have been
licensed to Jade pursuant to end-user licenses and which are used internally in
Jade's business but are in no way a component of or incorporated in or
specifically required to develop or support any Jade Products;

                          (d)     Declare or pay any dividends on or make any
other distributions (whether in cash, stock or property) in respect of any of
its capital stock, or split, combine or reclassify any of its capital stock or
issue or authorize the issuance of any other securities in respect of, in lieu
of or in substitution for shares of its capital stock, or purchase or otherwise
acquire, directly or indirectly, any shares of its capital stock;

                          (e)     Issue, deliver or sell or authorize or
propose the issuance, delivery or sale of, or purchase or propose the purchase
of, any shares of its capital stock or securities convertible into shares of
its capital stock, or subscriptions, rights, warrants or options to acquire, or
other agreements or commitments of any character obligating it to issue any
such shares or other convertible securities;

                          (f)     Acquire or agree to acquire, in any manner,
any business or organization, or otherwise acquire or agree to acquire, other
than in the ordinary course of business, any assets which are material,
individually or in the aggregate, to the business of Jade;



                                       12
<PAGE>   15

                          (g)     Except with the express consent of McAfee
following full disclosure of all material circumstances, take any of the
following actions:  (i) increase or agree to increase the compensation payable
or to become payable to its officers or employees, except for increases in
salary or wages of non-officer employees in the ordinary course of business and
in accordance with past practices, (ii) grant any severance or termination pay
to, or enter into any employment or severance agreement, with any employee other
than the ordinary course of business, or (iii) establish, adopt, enter into or
amend in any material respect any bonus, profit sharing, thrift, compensation,
stock option, restricted stock, pension, retirement, deferred compensation,
employment, termination, severance or other plan, trust, fund, policy or
arrangement for the benefit of any directors, officers or employees;

                          (h)     Incur any additional indebtedness for
borrowed money or guarantee any such indebtedness or issue or sell any debt
securities or warrants or rights to acquire any debt securities of Jade or
guarantee any debt securities of others, other than indebtedness incurred under
outstanding lines of credit consistent with past practice;

                          (i)     Amend or propose to amend its Articles of
Incorporation;

                          (j)    Incur or commit to incur any capital
expenditures (other than for non-equipment related research and development
expenses) in excess of Y.2,000,000 in the aggregate;

                          (k)     Dispose of any material portion of its assets
in excess of Y.2,000,000, except inventory in the ordinary course of business;

                          (l)     Enter into any lease or contract for the
purchase or sale of any assets or other material portion of its property, real
or personal, except in the ordinary course of business;

                          (m)     Amend or terminate any material right,
contract, agreement or license to which it is a party;

                          (n)     Initiate any litigation or arbitration
proceeding; or

                          (o)     Take, or agree in writing or otherwise to
take, any of the actions described in Sections (a) through (n) above, or any
action which is reasonably likely to make any of Jade's representations or
warranties contained in this Agreement untrue or incorrect in any respect on
the date made or as of the Closing.

                 5.2      Notice of Breach.  Each party shall promptly give
written notice to the other party upon becoming aware of the occurrence or, to
its knowledge, impending or threatened occurrence, of any event which would
cause any of its representations or warranties to be untrue on the Closing or
cause a breach of any covenant contained or referenced in this Agreement and
will use all reasonable commercial efforts to prevent or promptly remedy the
same. Any such notification shall not be deemed an amendment of the Jade
Disclosure Schedule.





                                       13
<PAGE>   16

                                   ARTICLE VI

                             ADDITIONAL AGREEMENTS

                 6.1      No Solicitation. (a) From and after the date of this
Agreement until the Closing, Jade shall not, directly or indirectly, through any
officer, director, employee, representative or agent of Jade, (i) solicit, 
initiate, or encourage any inquiries or proposals that constitute, or could
reasonably be expected to lead to, a proposal or offer for a sale of the
business of Jade or any similar transaction involving Jade, other than the
transactions contemplated by this Agreement (any of the foregoing inquiries or
proposals being referred to in this Agreement as an "Acquisition Proposal"),
(ii) engage in discussions concerning, or provide any non-public information to
any person or entity relating to, any Acquisition Proposal, or (iii) agree to,
or approve any Acquisition Proposal.

                          (b)     Jade shall notify McAfee immediately (and no
later than 24 hours) after receipt by Jade (or its advisors) of any Acquisition
Proposal or any request for information in connection with an Acquisition
Proposal or for access to the properties, books or records of Jade by any
person or entity that informs Jade that it is considering making, or has made,
an Acquisition Proposal. Such notice shall be made orally and in writing and
shall indicate in reasonable detail the identity of the offeror and the terms
and conditions of such proposal, inquiry or contact.

                 6.2      Public Disclosure.  Jade and McAfee shall consult
with each other before issuing any press release or otherwise making any public
statement with respect to the Exchange or this Agreement and shall not issue
any such press release or make any such public statement prior to such
consultation, except in the case of McAfee if such press release is required to
comply with McAfee's disclosure obligations under Securities and Exchange
Commission and Nasdaq National Market rules and regulations.

                 6.3      Jade Affiliate Agreement.  To ensure that the
Exchange will be accounted for as a "pooling of interests" and to ensure
compliance with Rule 145 of the rules and regulations promulgated by the SEC
under the Securities Act, the affiliates of Jade shall concurrently sign and
deliver to McAfee, the Jade Affiliate Agreement in the form of Exhibit 6.3 (the
"Jade Affiliate Agreement") agreeing that such affiliates will make no
disposition of Jade capital stock or McAfee Stock from the date hereof until
McAfee shall have publicly released its first report of quarterly financial
results that include the combined financial results of Jade and McAfee for a
period of at least 30 days, and agreeing to certain other restrictions as set
forth in such Jade Affiliate Agreement.

                 6.4      Repayment of Debt.  Within 90 days after the Closing
McAfee shall procure the repaying or refinancing of all the existing commercial
debts of Jade with Shizuoka Shinyo Kinko and Shizuoka Bank (but only if the
aggregate amount thereof does not exceed Y.40,000,000) such that the personal
guarantees and third party mortgage provided by Murakami as security therefor
for such indebtedness shall be capable of being discharged by such bank.





                                       14
<PAGE>   17

                                  ARTICLE VII

                             CONDITIONS TO EXCHANGE

                 7.1      Conditions to Each Party's Obligation to Effect the
Exchange.  The respective obligations of each party to this Agreement to effect
the Exchange shall be subject to the satisfaction prior to the Closing Date of
the following conditions:

                          (a)     Approvals.  All authorizations, consents,
orders or approvals of, or declarations or filings with, or expirations of
waiting periods imposed by, any Governmental Entity, including without
limitation the license required for the exchange of shares from the Ministry of
Finance of Japan under the Foreign Exchange and Foreign Trade Control Law of
Japan, the failure of which to obtain would be reasonably likely to have a
Material Adverse Effect on McAfee or Jade shall have been filed, occurred or
been obtained.

                          (b)     No Injunctions or Restraints; Illegality.  No
temporary restraining order, preliminary or permanent injunction or other order
issued by any court of competent jurisdiction or other legal or regulatory
restraint or prohibition preventing the consummation of the Exchange or
limiting or restricting McAfee's or Jade's conduct or operation of the business
of McAfee or Jade after the Exchange shall have been issued, nor shall any
proceeding brought by a domestic administrative agency or commission or other
domestic Governmental Entity, seeking any of the foregoing be pending; nor
shall there be any action taken, or any statute, rule, regulation or order
enacted, entered, enforced or deemed applicable to the Exchange which makes the
consummation of the Exchange illegal.

                          (c)     Escrow Agreement.  McAfee, the Escrow Agent
and the Jade Agent shall have entered into an escrow agreement (the "Escrow
Agreement") in the form attached hereto as Exhibit 7.1(c).

                 7.2      Additional Conditions to Obligations of McAfee.  The
obligation of McAfee to effect the Exchange is subject to the satisfaction of
each of the following conditions:

                          (a)     Representations and Warranties.  The
representations and warranties of Jade and the Shareholders set forth in this
Agreement shall be true and correct in all material respects as of the date of
this Agreement and (except to the extent such representations and warranties
speak as of an earlier date) as of the Closing Date as though made on and as of
the Closing Date, and McAfee shall have received a certificate signed on behalf
of Jade by the chief executive officer and the chief accounting officer of Jade
to such effect.

                          (b)     No Material Adverse Change.  There shall have
been no material adverse change in Jade since the date of this Agreement.

                          (c)     Performance of Obligations of Jade.  Jade
shall have performed in all material respects all obligations required to be
performed by it under this Agreement at or prior to the Closing Date; and
McAfee shall have received a certificate signed on behalf of Jade by the chief
executive officer and the chief accounting officer of Jade to such effect.





                                       15
<PAGE>   18

                          (d)     Consents.  Jade shall have received all
written consents, waivers and approvals, if any, and taken such other actions
necessary or appropriate to allow the consummation of the transactions
contemplated hereby and to allow Jade to carry on its business after the
Exchange in the same manner immediately prior to the Exchange, including any
consents, waivers and approvals under Jade Material Contracts.

                          (e)     Pooling Letter.  McAfee shall have received
from Coopers & Lybrand, an opinion, in form and substance satisfactory to
McAfee, that the Exchange will be treated as a "pooling of interests" for
accounting purposes.

                          (f)     Due Diligence.  McAfee and its legal counsel
shall have completed their due diligence investigation of Jade to their sole
satisfaction and shall not have become aware, to their sole discretion, of any
facts or circumstances which could have an adverse effect on Jade, McAfee, or
the Exchange.

                          (f)     Executive Services Agreement.  Murakami and
McAfee shall have executed and delivered the Executive Services Agreement in
the form (including the non-competition provisions acceptable to McAfee)
attached as Exhibit 7.2(g) hereto (the "Executive Services Agreement").

                          (h)     Non-Competition Agreement.  Murakami and
McAfee shall have executed and delivered the Non-Competition Agreement in the
form attached hereto as Exhibit 7.2(h) hereto (the "Non-Competition
Agreement").

                          (i)     Regulatory Compliance and Approval.  All
permits, consents, approvals and waivers from governmental authorities
necessary to the consummation of this Agreement and the transactions
contemplated hereby and for the operation of the business of Jade after the
consummation of the Exchange and the ownership of the Jade Intellectual
Property Rights after the consummation of the Exchange shall have been
obtained.

                          (j)     Registration Rights Agreement.  McAfee and
the Shareholders shall have executed and delivered the Registration Rights
Agreement in the form attached hereto as Exhibit 7.2(j).

                          (k)     Resignations of Directors.  McAfee shall have
received originals of the resignations from office of each of the Directors of
Jade other than that of Mr. Seiji Murakami.

                          (l)     Assignment of Patent.  All of the right,
title and interest in Japanese patent no. 2123894 currently held in the name of
Murakami shall have been transferred to, and registered irrevocably in the name
of, Jade.  In consideration of Murakami's assignment of such patent at or prior
to the Closing, McAfee undertakes to Murakami that for the duration of the
patent term and so long as McAfee is not harmed thereby, or competed against,
McAfee shall not seek to enforce the patent (a) against (i) any Japanese
governmental organization, public body or non-profit organization (excluding
any such entities (e.g., Nippon Telegram and Telephone (NTT)) when its acts in
a for profit or otherwise commercial manner), and (ii) any Japanese non-profit
laboratory or academic institution engaging in research and development (but
only when acting primarily for



                                       16
<PAGE>   19

academic rather than commercial purposes) provided that no such restriction on
enforcement shall apply to any licensees of entities described in (i) and (ii)
above; or (b) in a manner which would cause damage to the entire Japanese
anti-virus computer industry.

                          (m)     Confidentiality Agreements.  All employees of
Jade shall be subject to an obligation of confidentiality in favor of Jade and
each such employee shall be irrevocably obligated to transfer to Jade any
intellectual property created or developed by such employee for so long as such
employee shall have been or remain employed by Jade.

                          (n)     Hitachi Keiyo Engineering Agreement.  On or
prior to the Closing, Jade shall have received from Hitachi Keiyo Engineering
K.K. a confidentially agreement undertaking to assign to Jade all Intellectual
Property subcontracted for by Jade in form and substance satisfactory to
McAfee.

                 7.3      Additional Conditions to Obligations of Jade.  The
obligation of Jade to effect the Exchange is subject to the satisfaction of
each of the following conditions:

                          (a)     Representations and Warranties.  The
representations and warranties of McAfee set forth in this Agreement shall be
true and correct in all material respects as of the date of this Agreement and
(except to the extent such representations speak as of an earlier date) as of
the Closing Date as though made on and as of the Closing Date, and Jade shall
have received a certificate signed on behalf of McAfee by the chief executive
officer and the chief financial officer of McAfee to such effect.

                          (b)     Performance of Obligations of McAfee.  McAfee
shall have performed in all material respects all obligations required to be
performed by it under this Agreement at or prior to the Closing Date; and Jade
shall have received a certificate signed on behalf of McAfee by the chief
executive officer and the chief financial officer of McAfee to such effect.

                          (c)     Executive Services Agreement.  McAfee and
Murakami shall have executed and delivered the Executive Services Agreement
(including the non-competition provisions acceptable to McAfee).

                          (d)     Non-Competition Agreement.  McAfee and
Murakami shall have executed and delivered the Non-Competition Agreement.

                          (e)     Registration Rights Agreement.  McAfee and
the Shareholders shall have executed and delivered the Registration Rights
Agreement.

                                  ARTICLE VIII

                           TERMINATION AND AMENDMENT

                 8.1      Termination.  This Agreement may be terminated at any
time prior to the Closing, whether before or after approval of the matters
presented in connection with the Exchange by the stockholders of Jade:





                                       17
<PAGE>   20

                          (a)     by mutual written consent of McAfee and Jade;
or

                          (b)     either McAfee or Jade if the Exchange shall
not have been consummated by March l, 1997 (provided that the right to
terminate this Agreement under this Section 8.1(b) shall not be available to
any party whose failure to fulfill any material obligation under this Agreement
has been the cause of or resulted in the failure of the Exchange to occur on or
before such date); or

                          (c)     by either McAfee or Jade, if a court of
competent jurisdiction or other Governmental Entity shall have issued a
nonappealable final order, decree or ruling or taken any other action, in each
case having the effect of permanently restraining, enjoining or otherwise
prohibiting the Exchange, except, if the party relying on such order, decree or
ruling or other action has not materially complied with its obligations under
the terms of this Agreement; or

                          (d)     by McAfee, if any of the conditions to
McAfee's obligations to effect the Exchange which are specified in Section 7.1
or Section 7.2 have not been met or waived by McAfee at such time as such
condition is no longer reasonably capable of satisfaction (provided McAfee is
not otherwise in material breach of its representations, warranties covenants
or agreements under this Agreement);

                          (e)     by Jade, if any of the conditions to Jade's
obligation to effect the Exchange which are specified in Section 7.1 or Section
7.3 have not been met or waived by Jade at such time as such condition is no
longer reasonably capable of satisfaction, including the failure to obtain any
required approval of its stockholders (provided Jade is not otherwise in
material breach of its representations, warranties, covenants or agreements
under this Agreement); or

                          (f)     by McAfee or Jade, if there has been a
material breach of any representation, warranty, covenant or agreement on the
part of the other party set forth in this Agreement, which breach shall not
have been cured, in the case of a representation or warranty, prior to the
Closing or, in the case of a covenant or agreement, within 10 business days
following receipt by the breaching party of written notice of such breach from
the other party.

                 8.2      Effect of Termination.  In the event of termination
of this Agreement as provided in Section 8.1, this Agreement shall immediately
become void and there shall be no liability or obligation on the part of
McAfee, Jade, or their respective officers, directors or stockholders, as the
case may be, or Affiliates, except as set forth in Article IX and further
except to the extent that such termination results from the intentional breach
by a party of any of its representations, warranties or covenants set forth in
this Agreement.





                                       18
<PAGE>   21

                                   ARTICLE IX

             SURVIVAL OF REPRESENTATIONS; WARRANTIES AND COVENANTS

                 Notwithstanding any investigation conducted before or after
the Closing Date, and notwithstanding any actual or implied knowledge or notice
of any facts or circumstances which McAfee, the Shareholders or Jade may have
as a result of such investigation or otherwise, McAfee, the Shareholders and
Jade will be entitled to rely upon the other party's representations,
warranties and covenants set forth in this Agreement. The obligations of
McAfee, Jade and the Shareholders with respect to their respective
representations, warranties, agreements and covenants will survive the Closing
and continue in full force and effect until the date 12 months following the
Closing Date (the "Representation Termination Date"); provided, however, that
the representations and warranties of McAfee, Jade and the Shareholders as to
all items expected to be encountered in the audit process shall terminate when
McAfee publishes its audited financial statements for the fiscal year ending
December 31, 1997 (the "Financial Termination Date").

                                   ARTICLE X

                           INDEMNIFICATION AND ESCROW

                 10.1     Indemnity.  From and after the Closing of the
Exchange, and subject to the provisions of Article IX, McAfee shall be
indemnified and held harmless by the Shareholders against, and reimbursed for,
any actual liability, damage, loss, obligation, demand, judgment, fine,
penalty, cost or expense (excluding any punitive damages which are not a result
of intentional or fraudulent acts or omissions or indirect or consequential
damages to McAfee (such as lost profits), other than any such damages resulting
from injunctive relief granted as to an intellectual property claim, but
including reasonable attorneys' fees (excluding costs relating to in-house
attorneys) and expenses, and the costs of investigation (excluding in-house
costs of investigation) incurred in defending against or settling such
liability, damage, loss, cost or expense or claim therefor and any amounts paid
in settlement thereof) imposed on or reasonably incurred by McAfee as a result
of any misrepresentation or breach of any representation, warranty, agreement
or covenant on the part of Jade and/or any of the Shareholders under this
Agreement (collectively the "Damages"). Damages in each case shall be net of
the amount of any insurance proceeds, indemnity and contribution actually
recovered by McAfee. "Damages" as used herein is not limited to matters
asserted by third parties, but includes Damages incurred or sustained by McAfee
in the absence of claims by a third party.  For purposes of this Section 10.1
and Section 10.2, the term "McAfee" shall include Jade and the business of Jade
after the Closing.  This indemnity obligation shall expire on the
Representation Termination Date subject to the terms of the Escrow Agreement.

                 10.2     Escrow Fund.  As security for the indemnity provided
for in Section 10.1 hereof, 10% of the aggregate Exchange Shares to be received
pursuant to Section 1.3 hereof (the "Escrow Shares") shall be deposited with
and held in escrow by Cupertino National Bank and Trust (or other institution
selected by McAfee) as escrow agent (the "Escrow Agent"), as of the Closing
Date, such deposit to constitute an escrow fund (the "Escrow Fund") to be
governed by the terms set forth in this Agreement and the provisions of





                                       19
<PAGE>   22

the Escrow Agreement. Upon compliance with the terms hereof and subject to the
provisions of this Article X, McAfee shall be entitled to obtain indemnity from
the Escrow Fund for Damages covered by the indemnity provided for in Section
10.1 of this Agreement.  McAfee shall compensate the Escrow Agent for its
services in maintaining the Escrow Fund.  Unless and until the Escrow Shares
are delivered to the Shareholders in accordance with the provisions of this
Article X and the Escrow Agreement, all Exchange Shares held in the Escrow Fund
shall be registered in the name of the Shareholders.

                 10.3     Escrow Agreement.  The terms and conditions of the
Escrow are governed by the Escrow Agreement.

                 10.4     Third-Party Claims.  In the event McAfee becomes
aware of a third-party claim which McAfee believes may result in a demand
against the Escrow Fund, McAfee shall promptly notify the Shareholder Agent (as
defined below) of such claim.  McAfee shall have the right to settle any claim
with the written consent of the Shareholder Agent, which consent shall not be
unreasonably withheld. In the event that the Shareholder Agent has consented to
any such settlement, the Shareholder Agent shall not have any power or
authority to object to the amount of any claim by McAfee against the Escrow
Fund for indemnity with respect to such settlement If any proceeding is
commenced, or if any claim, demand or assessment is asserted, in respect of
which a claim for indemnification is or might be made against the Escrow Fund
based on matters other than (i) Jade Intellectual Property Rights or (ii)
claims made by customers of McAfee or Jade, the Shareholder Agent may, at his
option, contest or defend any such action, proceeding, claim, demand or
assessment, with counsel selected by the Shareholder Agent who is reasonably
acceptable to McAfee; provided, however, that if McAfee shall reasonably object
to such control, then the Shareholder Agent and McAfee shall cooperate in the
defense of such matter; provided further, that the Shareholder Agent shall not
admit any liability with respect thereto or settle, compromise, pay or
discharge the same without prior written consent of McAfee, which consent shall
not be unreasonably withheld.  With respect to any claim for indemnification
based on matters relating to Jade Intellectual Property Rights or customers of
Jade or McAfee, McAfee shall have the option to defend any such proceedings;
provided, however, that McAfee shall conduct such defense in a commercially
reasonable manner and McAfee shall not admit any liability with respect thereto
or settle, compromise, pay or discharge the same without the prior written
consent of the Shareholder Agent, which consent shall not be unreasonably
withheld. The Shareholder Agent or McAfee, which ever is not controlling the
defense of any matter, shall be entitled, at their expense, to participate in
such defense.

                 10.5     Limits. Notwithstanding any other provision in this
Agreement or any rule of law or equity:

                          (a)     McAfee shall not be entitled to maintain a
claim against the Shareholders in respect of any Damages incurred by McAfee as
a result of McAfee's own gross negligence or willful misconduct, or that of its
employees, agents or contractors other than the Shareholders, or as a result of
any occurrence, matter or thing the occurrence, existence or non-disclosure of
which constitutes a material breach or failure of any representation, warranty,
covenant or other obligation of McAfee hereunder;





                                       20
<PAGE>   23

                          (b)     McAfee shall not be entitled to recover any
punitive damages which are not a result of intentional or fraudulent acts or
omissions or indirect, consequential or special damages from the Shareholders;
and

                          (c)     McAfee shall be obligated to use reasonable
efforts to mitigate any Damages sustained by it in connection with any matter
for which the Shareholders may have liability to McAfee.

                 10.6     Shareholder Agent.

                          (a)     Murakami (the "Shareholder Agent") is hereby
appointed and constituted agent by the Shareholders for and on behalf of the
Shareholders:  to enter into and perform in accordance with the terms and
conditions of the Escrow Agreement; to give and receive notices and
communications; to authorize delivery to McAfee of funds from the Escrow Fund
in satisfaction of claims by McAfee; to object to such deliveries; to agree to,
negotiate, enter into settlements and compromises of, and demand arbitration
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
Shareholder Agent for the accomplishment of the foregoing and this Article X.

                          (b)     A decision, act, consent or instruction of
the Shareholder Agent shall constitute a decision of all the Shareholders, and
shall be final, binding and conclusive upon each of the Shareholders, and the
Escrow Agent and McAfee may rely upon any decision, act, consent or instruction
of the Shareholder Agent as being the decision, act, consent or instruction of
each and all of the Shareholders.  The Escrow Agent and McAfee are hereby
relieved from any liability to any person for any acts done by them in
accordance with such decision, act, consent or instruction of the Shareholder
Agent.

                                   ARTICLE XI

                                 MISCELLANEOUS

               11.1       Notices.  All notices and other communications
hereunder shall be in writing and shall be deemed given if delivered
personally, telecopied (which is confirmed) or mailed by registered or
certified mail (return receipt requested) to the parties at the following
addresses (or at such other address for a party as shall be specified by like
notice):


                       (a)     if to McAfee, to
                               McAfee Associates, Inc.
                               2710 Walsh Avenue
                               Santa Clara, CA 95051-0963
                               Attention:  William L. Larson,
                                           President and Chief Executive Officer





                                       21
<PAGE>   24
                               with a copy to:

                               Gunderson Dettmer Stough Villeneuve
                               Franklin & Hachigian,
                               LLP
                               155 Constitution Drive
                               Menlo Park, CA 94025
                               Attention: Carla S. Newell, Esq.

                               and

                               White & Case
                               American International Building
                               20-5 Ichibancho, Chiyoda-Ku
                               Tokyo 102, Japan
                               Attention: Christopher P. Wells/Michael J. Yoshii

                       (b)     if to Jade, to

                               Kabushiki Kaisha Jade
                               6-11 Tokiwa-cho 3-chome, Shizuoka-shi,
                               Shizuoka, 420 Japan
                               Attention: Chief Executive Officer

                       (c)     if to the Shareholder Agent, to
                               Seiji Murakami
                               13-24 Mabuchi 1-chome,
                               Shizuoka-shi, Shizuoka, 420 Japan


                 11.2     Interpretation.  When a reference is made in this
Agreement to Sections, such reference shall be to a section of this Agreement
unless otherwise indicated.  The table of contents and headings contained in
this Agreement are for reference purposes only and shall not affect in any way
the meaning or interpretation of this Agreement.  Whenever the words "include,"
"includes" or "including" are used in this Agreement they shall be deemed to be
followed by the words "without limitation." The phrases "the date of this
Agreement," "the date hereof," and terms of similar import, unless the context
otherwise requires, shall be deemed to refer to the date first set forth in
this Agreement.

                 11.3     Counterparts.  This Agreement may be executed in two
or more counterparts, all of which shall be considered one and the same
agreement and shall become effective when two or more counterparts have been
signed by each of the parties and delivered to the other parties, it being
understood that all parties need not sign the same counterpart.

                 11.4     Entire Agreement; No Third Party Beneficiaries.  This
Agreement, the other Transaction Agreements and the Confidentiality Agreement
(including the documents and the instruments referred to herein) (a) constitute
the entire agreement and supersede all prior agreements and understandings,
both written and oral, among the parties with respect to the subject matter
hereof, and (b) are not intended to confer upon any person other than the





                                       22
<PAGE>   25

parties hereto any rights or remedies hereunder other than the rights of the
Shareholders to receive the consideration specified in Article I of this
Agreement.

                 11.5     Governing Law.  Articles I, IV, VIII, X and XI of this
Agreement shall be governed and construed in accordance with the laws of Japan
and Articles II, III, V, VI, VII and IX shall be governed and construed in
accordance with the laws of the State of California without regard to any
applicable conflicts of law.

                 11.6     Assignment.  Neither this Agreement nor any of the
rights, interests or obligations hereunder shall be assigned by any of the
parties hereto (whether by operation of law or otherwise) without the prior
written consent of the other parties.  Subject to the preceding sentence, this
Agreement will be binding upon, inure to the benefit of and be enforceable by
the parties and their respective successors and permitted assigns.

                 11.7     Attachments and Schedules.  All attachments and
schedules attached hereto, together with the Jade Disclosure Schedule, are
incorporated herein by reference.

                 11.8     Severability.  In the event that any provision
contained herein shall be held to be invalid, illegal or unenforceable for any
reason, such invalidity, illegality or unenforceability shall not affect any
other provision hereof, and this Agreement shall be construed as if such
invalid, illegal or unenforceable provision had never been contained herein.

                 11.9     Arbitration.  Notwithstanding anything herein to the
contrary, in the event that there shall be a dispute among the parties arising
out of or relating to this Agreement, or the breach thereof, the parties agree
that such dispute shall be resolved by final and binding arbitration before
three arbitrators (one arbitrator to be selected by each of McAfee and the
Shareholders and the third arbitrator to be selected by the two arbitrators so
selected) in Tokyo, Japan in accordance with the rules of the International
Chamber of Commerce then in effect.  The arbitration shall be conducted in the
English language. There shall be limited discovery prior to the arbitration
hearing, subject to the discretion of the arbitrators, as follows:  (i)
exchange of witness lists and copies of documentary evidence and documents
related to or arising out of the issues to be arbitrated, (ii) depositions of
all party witnesses, (iii) other depositions as may be allowed by the
arbitrators upon a showing of good cause.  Any award issued as a result of such
arbitration shall be final and binding between the parties thereto, and shall
be enforceable by any court having jurisdiction over the party against whom
enforcement is sought.  The fees and expenses of such arbitration (including
reasonable attorneys' fees) or any action to enforce an arbitration award shall
be paid by the party that does not prevail in such arbitration.

                 11.10    Fees and Expenses.  All costs and expenses, including
professional fees, incurred in connection with this Agreement and the
transactions contemplated hereby shall be paid by the party, incurring such
expense.  The Shareholders shall be responsible for any expenses concerning the
drafting, negotiating and brokering of this Agreement incurred by the
Shareholders or Jade.

                 11.11    Amendment.  This Agreement may not be amended except
by an instrument in writing signed on behalf of each of the parties hereto.





                                       23
<PAGE>   26

                 11.12    Extension: Waiver.  At any time prior to the Closing.
the parties hereto, by action taken or authorized by their respective Boards of
Directors, may to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties
hereto, (ii) waive any inaccuracies in the representations and warranties
contained herein or in any document delivered pursuant hereto and (iii) waive
compliance with any of the agreements or conditions contained herein.  Any
agreement on the part of a party hereto to any such extension or waiver shall
be valid only if set forth in a written instrument signed on behalf of such
party.

                 11.13    Language.  The English language version of this
Agreement and all other Agreements between McAfee and Jade and/or the
Shareholders shall be the controlling versions.  Any translations made of this
Agreement or any other Agreements between McAfee and Jade and/or the
Shareholders shall be for convenience purposes only and shall have no legal
effect.














                                       24
<PAGE>   27
                 IN WITNESS WHEREOF, McAfee, Sub, Jade and the Shareholders
have caused this Stock Exchange Agreement to be signed by their respective
officers thereunto duly authorized as of the date first written above.



KABUSHIKI KAISHA JADE                     MCAFEE ASSOCIATES, INC.

Name:    /s/ Seiji Nurakami               By:    /s/ R. Terry Duryea
      ---------------------------            ---------------------------

Title:                                    Title:    Vice President
      ---------------------------               ------------------------

FSA COMBINATION CORP.


By:    /s/ R. Terry Duryea
    -----------------------------

Title:    Vice President
       --------------------------


                                          SHAREHOLDERS


Witness:
   /s/ Kamiya Masamichi                    /s/ Seiji Murakami
- ---------------------------------          ----------------------------
Name:  Kamiya Masamichi                    Seiji Murakami
Title:

Witness:
   /s/ Kamiya Masamichi                    /s/ Sanae Murakami
- ---------------------------------          ----------------------------
Name: Kamiya Masamichi                     Sanae Murakami
Title:

Witness:
   /s/ Kamiya Masamichi                    /s/ Atsuhiro Murakami
- ---------------------------------          ----------------------------
Name: Kamiya Masamichi                     Atsuhiro Murakami
Title:

Witness:
   /s/ Kamiya Masamichi                     /s/ Takayuki Murakami
- ---------------------------------           ---------------------------
Name: Kamiya Masamichi                      Takayuki Murakami
Title:









<PAGE>   28


Witness:
/s/ Kamiya Masamichi                        /s/ Kanako Murakami
- ---------------------------                 ---------------------------
Name: Kamiya Masamichi                      Kanako Murakami
Title:














                                       2



<PAGE>   1

                                                                    EXHIBIT 4.1



                         REGISTRATION RIGHTS AGREEMENT








<PAGE>   2

                         REGISTRATION RIGHTS AGREEMENT

                 THIS REGISTRATION RIGHTS AGREEMENT is made as of January 13,
1997, by and between McAfee Associates, Inc., a Delaware corporation (the
"Company"), and the shareholders named in the signature blocks hereto
(collectively, the "Shareholders" and individually, a "Shareholder") of
Kabushiki Kaisha Jade, a Japanese corporation ("Jade").

                                    RECITALS

                 WHEREAS, the Company, Jade, FSA Combination Corp. ("Sub") and
the Shareholders are parties to the Stock Exchange Agreement, dated January 13,
1997 (together with all exhibits, schedules, supplements and any amendments
thereto, the "Stock Exchange Agreement"), pursuant to which the Sub shall
acquire all the outstanding shares of capital stock of Jade (the "Exchange");

                 WHEREAS, the execution and delivery of this Agreement is a
condition to the Closing of the Exchange;

                 WHEREAS, the Stock Exchange Agreement provides that, as of the
Closing Date, all the outstanding shares of capital stock of Jade held by the
Shareholders immediately prior to the Closing shall be exchanged for shares of
common stock (the "Common Stock") of the Company (the "Exchange") and that such
Shareholders be granted registration rights as set forth herein; and

                 WHEREAS, all terms not otherwise defined herein shall have the
same meanings ascribed to them in the Stock Exchange Agreement;

                 NOW, THEREFORE, THE PARTIES HEREBY AGREE AS FOLLOWS:

                 1.       Registration Rights.  The Company covenants and
                          agrees as follows:

                 1.1      Definitions.  For purposes of this Section 1:

                 (a)      The term "Act" means the Securities Act of 1933, as
amended.

                 (b)      The term "1934 Act" shall mean the Securities
Exchange Act of 1934, as amended.

                 (c)      The term "register," "registered," and "registration"
refer to a registration effected by preparing and filing a registration
statement or similar document in compliance with the Act, and the declaration
or ordering of effectiveness of such registration statement or document.

                 (d)      The term "Registrable Securities" means the Common
Stock of the Company issued to the Shareholders in the Exchange, and any Common
Stock of the Company issued as (or issuable upon the conversion or exercise of
any warrant, right or other security which is issued as) a dividend or other
distribution with respect to such Common Stock.





<PAGE>   3

                 (e)      The term "Rule 144" shall mean Rule 144 promulgated
under the Act, as amended from time to time, or any similar successor rule
thereto that may be promulgated by the SEC.

                 (f)      The term "SEC" shall mean the Securities and Exchange
Commission.

                 1.2     Request for Registration.

                 (a)      Subject to the limitations of subsection 1.2(d)
hereof, if the Company shall at any time following 14 days after the Closing of
the Exchange receive a written request from Shareholders holding a majority of
the then outstanding Registrable Securities that the Company file a registration
statement under the Act, the Company will effect, as soon as practicable after
the receipt of such request, the registration under the Act of all Registrable
Securities which the Shareholder or Shareholders request to be registered;
provided, however, that (i) the Company shall not be required to register more
than 60% of the Registrable Securities then outstanding pursuant to such
request, and (ii) the Shareholders shall not sell the Registrable Securities
until McAfee has published (within the meaning of Accounting Series Release No.
135, as amended, of the SEC) financial results covering at least one month of
combined operations of McAfee and Jade.  The Company shall not be required to
register Registrable Securities pursuant to this subsection 1.2(a) on more than
one occasion.

                 (b)      Subject to the limitations of subsection 1.2(d)
hereof, if the Company shall receive at any time after 365 days following the
Closing Date, a written request from the Shareholders holding a majority of the
then outstanding Registrable Securities that the Company file a registration
statement under the Act covering the registration of any or all of the
Registrable Securities not registered under subsection 1.2(a) above, the Company
will effect, as soon as practicable after the receipt of such request, the
registration under the Act of all such Registrable Securities.  The Company
shall not be required to register Registrable Securities pursuant to this
subsection 1.2(b) on more than one occasion.

                 (c)      Notwithstanding the foregoing, if the Company shall
furnish to the Shareholders a certificate signed by the Chief Executive Officer
of the Company stating that in the good faith judgment of the Board of Directors
of the Company, it would be detrimental to the Company and its stockholders for
such registration statement to be filed, and it is therefore essential to defer
the filing of such registration statement, the Company shall have the right to
defer taking action with respect to such filing for a period of not more than
120 days after receipt of the request of the Shareholders; provided, however,
that the Company may not utilize this right more than once for the registration
requested under subsection 1.2(a) above.

                 (d)      Notwithstanding the foregoing, the Company shall not
be required to register any Registrable Securities that are, at the effective
date of the registration statement, held in escrow, pursuant to the terms of the
Stock Exchange Agreement and the Escrow Agreement.

                 1.3     Obligations of the Company.  Whenever required under
this Section 1 to effect the registration of any Registrable Securities, the
Company shall, as expeditiously as reasonably possible:








                                       2
<PAGE>   4

                 (a)      Prepare and file with the SEC as soon as practicable,
but in no event later than 60 days after a request for registration has been
made under Section 1.2, a registration statement with respect to such
Registrable Securities and use reasonable efforts to cause such registration
statement to become effective, and, subject to the provisions below, use
reasonable efforts to, keep such registration statement effective for a period
of ninety (90) days or, if earlier, until the distribution contemplated in the
registration statement has been completed.  If at any time after a registration
statement becomes effective, the Company advises the Shareholders requesting
registration in writing that due to the existence of material information that
has not been disclosed to the public and included in the registration statement
it is necessary to amend the registration statement, the Shareholders shall
suspend any further sale of Registrable Securities pursuant to the Registration
Statement until the Company advises the Shareholders that the registration
statement has been amended.  In such event, the Company shall cause the
registration statement to be amended as soon as reasonably practicable, provided
that the Company shall not be required to amend the registration statement
during any time when the Company's officers and directors are prohibited from
buying or selling the Company's Common Stock pursuant to the Company's insider
trading policy.  Notwithstanding the foregoing sentence, the Company shall file
any amendment necessary for the Shareholders to recommence their sales under the
registration statement concurrently with the commencement of any period in which
directors and officers of the Company are allowed to buy or sell Common Stock
pursuant to the Company's insider trading policy.

                 (b)      Subject to subsection 1.3(a), prepare and file with
the SEC such amendments and supplements to such registration statement and the
prospectus used in connection with such registration statement as may be
necessary to comply with the provisions of the Act with respect to the
disposition of all securities covered by such registration statement.

                 (c)      Furnish to the Shareholders requesting registration
such numbers of copies of a prospectus, including a preliminary prospectus, in
conformity with the requirements of the Act, and such other documents as they
may reasonably request in order to facilitate the disposition of Registrable
Securities owned by them.

                 (d)      Use reasonable efforts to register and qualify the
securities covered by such registration statement under such other securities or
Blue Sky laws of such jurisdictions as shall be reasonably requested by the
Shareholders holding a majority of the Registrable Securities; provided that the
Company 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, unless the Company is already subject to
service in such jurisdiction and except as may be required by the Act.

                 1.4     Information from Shareholders.  It shall be a condition
precedent to the obligations of the Company to take any action pursuant to this
Section 1 with respect to the Registrable Securities of a Shareholder that such
Shareholder shall furnish to the Company such information regarding himself or
herself, the Registrable Securities held by him or her, and the intended method
of disposition of such securities as shall be required to effect the
registration of the Registrable Securities.  Company agrees that promptly
following a reasonable request from Shareholder therefor, Company shall furnish
Shareholder a summary of the information which Company requires in order to
complete any such procedures.





                                       3
<PAGE>   5

                 1.5     Expenses of Registration.  All expenses of the
Shareholders, including (without limitation) all registration, filing and
qualification fees, printers' and accounting fees, fees and disbursements of
counsel for the Company shall be borne by the Company; provided, however, that
the Company shall not be required to pay any professional fees of the
Shareholders and provided, further, that the Company shall not be required to
pay for any expenses of any registration proceeding begun pursuant to Section
1.2 if the registration request is subsequently withdrawn at the request of the
Shareholders holding a majority of the Registrable Securities (in which case the
Shareholders shall bear such expenses on a pro-rata basis based upon the number
of Registrable Securities held unless the Shareholders holding a majority of the
Registrable Securities agree that the registration shall be deemed to satisfy
the Company's obligations to complete one registration pursuant to Section 1.2
hereof).

                 1.6     Resales through McAfee Brokers.  The Shareholders
hereby agree that all resales by them of the Registrable Securities shall be
made on the Nasdaq National Market, or with the consent of the Shareholders, in
a private transaction, through Alex. Brown & Sons Incorporated, Bear, Stearns &
Co., Inc., or Robertson, Stephens & Company LLC.

                 1.7     No Assignment of Registration Rights.  The registration
rights provided hereunder are not assignable.

                 1.8     Termination of Registration Rights.  The registration
rights provided in this Section 1 shall be terminated if all shares of
Registrable Securities held by such Shareholder may be sold pursuant to Rule 144
in any three (3) month period.

                 2.      Miscellaneous.

                 2.1     Successors and Assigns.  Except as otherwise provided
herein, the terms and conditions of this Agreement shall inure to the benefit of
and be binding upon the respective successors and assigns of the parties.
Nothing in this Agreement, express or implied, is intended to confer upon any
party other than the parties hereto or their respective successors and assigns
any rights, remedies, obligations, or liabilities under or by reason of this
Agreement, except as expressly provided in this Agreement.

                 2.2     Governing Law.  This Agreement shall be governed by and
construed under the laws of the State of California as applied to agreements
among California residents entered into and to be performed entirely within
California.

                 2.3     Counterparts.  This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

                 2.4     Titles and Subtitles.  The titles and subtitles used in
this Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

                 2.5     Notices.  Unless otherwise provided, any notice
required or permitted under this Agreement shall be given in writing and shall
be deemed effectively given upon facsimile (with confirmed receipt), or personal
delivery to the party to be notified at the







                                       4
<PAGE>   6

address indicated for such party on the signature page hereof, or at such other
address as such party may designate by ten (10) days' advance written notice to
the other parties.

                 2.6     Expenses.  If any action at law or in equity is
necessary to enforce or interpret the terms of this Agreement, the prevailing
party shall be entitled to reasonable attorneys' fees, costs and necessary
disbursements in addition to any other relief to which such party may be
entitled.

                 2.7     Amendments and Waivers.  Any term of this Agreement may
be amended and the observance of any term of this Agreement may be waived
(either generally or in a particular instance and either retroactively or
prospectively), only with the written consent of the Company and the
Shareholders holding a majority of the Registrable Securities.

                 2.8     Severability.  If one or more provisions of this
Agreement are held to be unenforceable under applicable law, such provision
shall be excluded from this Agreement and the balance of the Agreement shall be
interpreted as if such provision were so excluded and shall be enforceable in
accordance with its terms.

                 2.9     Entire Agreement.  This Agreement constitutes the full
and entire understanding and agreement between the parties with regard to the
subject hereof.

                 2.10    Arbitration.  Notwithstanding anything herein to the
contrary, in the event that there shall be a dispute among the parties arising
out of or relating to this Agreement, or the breach thereof, the parties agree
that such dispute shall be resolved by final and binding arbitration before
three arbitrators (one arbitrator to be selected by each of McAfee and the
Shareholders and the third arbitrator to be selected by the two arbitrators so
selected) in Tokyo, Japan in accordance with the rules of the International
Chamber of Commerce then in effect.  The arbitration shall be conducted in the
English language.  There shall be limited discovery prior to the arbitration
hearing, subject to the discretion of the arbitrators, as follows: (i) exchange
of witness lists and copies of documentary evidence and documents related to or
arising out of the issues to be arbitrated, (ii) depositions of all party
witnesses, (iii) other depositions as may be allowed by the arbitrators upon a
showing of good cause. Any award issued as a result of such arbitration shall be
final and binding between the parties thereto, and shall be enforceable by any
court having jurisdiction over the party against whom enforcement is sought. The
fees and expenses of such arbitration (including reasonable attorneys' fees) or
any action to enforce an arbitration award shall be paid by the party that does
not prevail in such arbitration.





                                       5
<PAGE>   7

         IN WITNESS WHEREOF, the parties have executed this Registration Rights
Agreement as of the date first above  written.


                                         McAFEE ASSOCIATES, INC.



                                         By: /s/ R. TERRY DURYEA
                                            --------------------------------
                                            R. Terry Duryea, Vice President
                                            Professional Services and
                                            Corporate Development

                                         Address:

                                         2710 Walsh Avenue
                                         Santa Clara, California  95051-0963


                                         SHAREHOLDERS:

                 Witness:

/s/    KAMIYA MASAMICHI                 /s/    SEIJI MURAKAMI
- --------------------------------        --------------------------------
Name:  Kamiya Masamichi                 Seiji Murakami
Title:
                                        Address:
                                        13-24 Mabuchi 1-chome
                                        Shizuoka-shi, Shizuoka-ken

Witness:

/s/    KAMIYA MASAMICHI                 /s/    SANAE MURAKAMI
- --------------------------------        --------------------------------
Name:  Kamiya Masamichi                 Sanae Murakami
Title:
                                        Address:
                                        13-24 Mabuchi 1-chome
                                        Shizuoka-shi, Shizuoka-ken






<PAGE>   8


Witness:

/s/    KAMIYA MASAMICHI                 /s/    ATSUHIRO MURAKAMI
- --------------------------------        --------------------------------
Name:  Kamiya Masamichi                 Atsuhiro Murakami
Title:

                                        Address:
                                        13-24 Mabuchi 1-chome
                                        Shizuoka-shi, Shizuoka-ken

Witness:

/s/    KAMIYA MASAMICHI                 /s/    TAKAYUKI MURAKAMI
- --------------------------------        --------------------------------
Name:  Kamiya Masamichi                 Takayuki Murakami
Title:

                                        Address:
                                        13-24 Mabuchi 1-chome
                                        Shizuoka-shi, Shizuoka-ken

Witness:
/s/    KAMIYA MASAMICHI                 /s/    KANAKKO MURAKAMI
- --------------------------------        --------------------------------
Name:  Kamiya Masamichi                 Kanakko Murakami
Title:

                                        Address:
                                        13-24 Mabuchi 1-chome
                                        Shizuoka-shi, Shizuoka-ken







<PAGE>   1
                                                                    EXHIBIT 99.1


                                 PRESS RELEASE












<PAGE>   2

                              [MCAFEE LETTERHEAD]


                                                       Contacts:
                                                       Mark Coker
                                                       Dovetail Public Relations
                                                       (408) 395-3600
                                                       Peter Watkins
                                                       McAfee
FOR IMMEDIATE RELEASE                                  (408) 653-3043


                           MCAFEE TO ACQUIRE JADE KK,

                A LEADING JAPANESE ANTI-VIRUS SOFTWARE DEVELOPER

       EXTENDS MCAFEE PRESENCE IN JAPANESE INFORMATION TECHNOLOGY MARKET

SANTA CLARA, CALIF. (JANUARY 30, 1997) -- McAfee (Nasdaq: MCAF), a leading
vendor of network security and management software, today announced that it has
signed a definitive agreement to acquire Jade KK, a leading anti-virus software
vendor with offices in Tokyo and Osaka, Japan.

                 The acquisition of Jade is the Company's latest move to expand
its presence in the lucrative Japanese information technology market.  Last
month, McAfee opened its first Japanese office and hired Masahiro Kano, a
veteran of Softbank, Novell and WordPerfect, as president of McAfee Japan.

                 The acquisition of Jade establishes McAfee as one of Japan's
leading vendors of anti-virus software while augmenting McAfee's global network
of anti-virus research facilities.  Jade, which produces the widely sold Scan
Vaccine and Virus Rescue products, has the leading marketshare in the Japanese
government market.

                 Under the terms of the acquisition, which is expected to be
completed in March, McAfee will exchange shares of newly issues McAfee common
stock valued at $17,000,000 for all outstanding stock in the privately held
Jade.  The number of shares





                                     -MORE-

<PAGE>   3

MCAFEE ACQUIRES JAPAN'S SECOND LARGEST ANTI-VIRUS SOFTWARE VENDOR, PAGE 2 OF 3


to be issued will be determined based on the average closing price for a period
prior to the acquisition's close.  McAfee expects to issue approximately
360,000 shares for the acquisition of Jade.  The transaction will be accounted
for as a pooling of interests.

                 Jade management, including Seiji Murakami, Jade's founder,
president and chairman, will continue as McAfee employees.  Mr.  Murakami will
become chairman of McAfee Japan, joining Masahiro Kano, McAfee Japan president,
as a valued member of the McAfee Japan executive management team.  Mr. Murakami
will also continue his work as the lead anti-virus researcher for MITI, the
Ministry of International Trade and Industry.

                 "The merger of our companies will allow McAfee and Jade to
cooperatively achieve more than either company could achieve individually,"
said Masahiro Kano.  "By joining McAfee and Jade, we have built our resources
to exploit the emerging market opportunities here in Japan and Asia."

                 "Japan is the world's second largest information technology
market," said Bill Larson, McAfee's president, chairman, and CEO.  "Our
acquisition of Jade provides McAfee with a solid foothold in the Japanese
anti-virus market, while providing us an expanded foundation by which to grow
our security, help desk, and network management product lines."

                 This news release contains forward looking statements that
involve risks and uncertainties including risks associated with international
operations and the risks associated with the acquisition such as integrating
the personnel and products of Jade.  Actual results may vary materially from
those currently anticipated.  For a more detailed description of the risks
involved see the "Risk Factors" included in the Company's Annual Report on Form
10K as filed with the SEC on March 25, 1996.

                 Founded in 1991, Jade is a leading vendor of anti-virus
software in Japan.  The company currently employs a staff of over 50 anti-virus
researchers, salespersons, and customer support representatives.  Jade
customers include Fujitsu, Toyota, NTT, Honda



                                     -MORE-

<PAGE>   4

MCAFEE ACQUIRES JAPAN'S SECOND LARGEST ANTI-VIRUS SOFTWARE VENDOR, PAGE 3 OF 3


Motors, Mitsui, Sumitomo, and the Japanese Ministry of Finance.  Several
leading PC systems manufacturers, including NEC, Hitachi, Sharp, Epson and
Matsushita, currently bundle Jade's anti-virus software.

                 Founded in 1989, McAfee is a leading worldwide vendor of
Network Security and Management products for enterprise networks.  The Company
is also a leader in Internet and Web-based electronic software distribution.
McAfee is headquartered in Santa Clara, California and can be reached by phone
at (408) 988-3832 or by fax at (408) 970-9727.  McAfee's Web address is
http://www.mcafee.com.

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