NETWORK GENERAL CORPORATION
10-Q, 1997-10-29
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>

                   UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                                WASHINGTON, D.C. 20549
                                           
                                      FORM 10-Q

    
           
    /X/  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) 
         OF THE SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended SEPTEMBER 30, 1997
                                           
                                          OR
    

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

             For the transition period from _____________to_____________
                                           
                            Commission file number 0-17431
                                           
                             NETWORK GENERAL CORPORATION
                (Exact name of registrant as specified in its charter)
                                           
                                           
Delaware                                                              77-0115204
- --------------------------------------------------------------------------------
(State or other jurisdiction of                              (I.R.S. Employer
incorporation or organization)                               Identification No.)
                                           
4200 Bohannon Drive, Menlo Park, California                                94025
- --------------------------------------------------------------------------------
(Address of principal executive offices)                              (Zip Code)
                                           
(Registrant's telephone number, including area code)   (650) 473-2000
                                           
                                           
    Indicate by check whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports) and (2) has been subject to such filing
requirements for the past 90 days.      
Yes    X       No  
     -----         -----
                                           
                                           
                                           
      As of September 30, 1997, there were 42,389,485 shares of the Registrant's
Common Stock (par value $0.01 per share) outstanding.

                         The exhibit index begins on page 20.
                                           


<PAGE>

                             NETWORK GENERAL CORPORATION
                                      FORM 10-Q
                                           
                                           
                                           
                                        INDEX
<TABLE>
<CAPTION>
 

                                                                                                         PAGE
                                                                                                         ----
<S>                                                                                                      <C> 
         Cover Page                                                                                       1

         Index                                                                                            2

PART I.  FINANCIAL INFORMATION
Item 1.  Financial Statements

         Condensed Consolidated Statements of Operations - Three and six months ended 
         September 30, 1997 and 1996                                                                      3

         Condensed Consolidated Balance Sheets - September 30, 1997 and March 31, 1997                    4

         Condensed Consolidated Statements of Cash Flows - Six months ended 
         September 30, 1997 and 1996                                                                      5

         Notes to Condensed Consolidated Financial Statements (Unaudited) - September 30, 1997          6 - 8

Item 2.  Management's Discussion and Analysis of Financial Condition and Results of Operations          9 - 18

PART II. OTHER INFORMATION
Item 1.  Legal Proceedings                                                                               19

Item 4.  Submission of Matters to a Vote of Security Holders                                             19

Item 6.  Exhibits and Reports on Form 8-K                                                              20 - 23

         Signatures                                                                                      24
</TABLE>
 


                                          2
<PAGE>

PART I.  FINANCIAL INFORMATION
                                           
ITEM 1.  FINANCIAL STATEMENTS
                                           
                                           
                             NETWORK GENERAL CORPORATION
                   CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                        (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                           
<TABLE>
<CAPTION>
 
                                                                      
                                                               Three Months Ended             Six Months Ended
                                                                  September 30,                 September 30,
                                                               1997           1996           1997           1996  
                                                            ---------      ---------      ---------      ---------
                                                                                  (Unaudited)
<S>                                                         <C>            <C>            <C>            <C>      
Revenues:
    Product                                                 $  48,852      $  43,626      $  91,869      $  84,265
    Services                                                   15,748         11,919         31,054         22,960
                                                            ---------      ---------      ---------      ---------
Total revenues                                                 64,600         55,545        122,923        107,225
                                                            ---------      ---------      ---------      ---------

Cost of Revenues:
    Product                                                    11,961         11,108         22,806         20,769
    Services                                                    5,066          2,999          9,911          6,311
                                                            ---------      ---------      ---------      ---------
Total cost of revenues                                         17,027         14,107         32,717         27,080
                                                            ---------      ---------      ---------      ---------

    Gross margin                                               47,573         41,438         90,206         80,145

Operating Expenses:
    Sales and marketing                                        22,755         17,857         43,645         34,879
    Research and development                                    9,965          7,418         19,385         14,594
    General and administrative                                  4,391          3,630          8,809          7,334
    Acquired in-process research and development
        and other non-recurring charges                        23,688              -         23,688              -
                                                            ---------      ---------      ---------      ---------

Total operating expenses                                       60,799         28,905         95,527         56,807
                                                            ---------      ---------      ---------      ---------

    Income (loss) from operations                             (13,226)        12,533         (5,321)        23,338

Interest and other income, net                                  1,311          1,605          3,893          3,296
                                                            ---------      ---------      ---------      ---------
    Income (loss) before provision for income taxes           (11,915)        14,138         (1,428)        26,634

Provision for income taxes                                      3,944          4,312          7,457          8,123
                                                            ---------      ---------      ---------      ---------
    Net income (loss)                                       $ (15,859)     $   9,826      $  (8,885)     $  18,511
                                                            ---------      ---------      ---------      ---------
                                                            ---------      ---------      ---------      ---------

Earnings (loss) per share                                   $   (0.37)     $    0.22      $   (0.21)     $    0.41
                                                            ---------      ---------      ---------      ---------
                                                            ---------      ---------      ---------      ---------

Weighted average common and common equivalent 
shares outstanding                                             42,526         45,325         42,731         45,735
                                                            ---------      ---------      ---------      ---------
                                                            ---------      ---------      ---------      ---------
</TABLE>
 


    The accompanying notes are an integral part of these condensed consolidated
financial statements.


                                          3
<PAGE>

                            NETWORK GENERAL CORPORATION
                        CONDENSED CONSOLIDATED BALANCE SHEETS
                          (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
 

                                                             September 30,         March 31, 
                                                                 1997                1997    
                                                             -------------      -------------
<S>                                                          <C>                <C>          
                                                              (Unaudited)

ASSETS
Current Assets:
    Cash and cash equivalents                                  $    20,799        $    48,778
    Marketable securities                                           78,866             83,661
    Accounts receivable, net                                        43,434             51,461
    Inventories:
         Purchased parts                                             3,004              1,386
         Finished goods                                              3,346              3,921
                                                             -------------      -------------
         Total inventories                                           6,350              5,307
    Prepaid expenses and deferred tax assets                        15,362             14,826
                                                             -------------      -------------
             Total current assets                                  164,811            204,033

Property and Equipment:
    Demonstration and rental equipment                              10,053             10,500
    Office and development equipment                                39,411             34,732
    Leasehold improvements                                           6,321              5,680
                                                             -------------      -------------
                                                                    55,785             50,912
    Less accumulated depreciation and amortization                 (33,381)           (30,035)
                                                             -------------      -------------
    Net property and equipment                                      22,404             20,877

Long-term investments                                               23,138             32,462
Other assets                                                        11,346              5,899
                                                             -------------      -------------
                                                               $   221,699        $   263,271
                                                             -------------      -------------
                                                             -------------      -------------

LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
    Accounts payable                                           $     8,957        $    28,173
    Accrued liabilities                                             23,164             20,626
    Deferred revenue                                                31,189             31,216
                                                             -------------      -------------
             Total current liabilities                              63,310             80,015

Long-term deferred revenue and taxes                                 4,801              3,860
Stockholders' Equity:
    Common stock
         Issued-   42,389,485 shares at September 30, 1997
                   43,248,588 shares at March 31, 1997                 424                432
    Additional paid-in capital                                      45,157             62,072
    Retained earnings                                              108,007            116,892
                                                             -------------      -------------
             Total stockholders' equity                            153,588            179,396
                                                             -------------      -------------
                                                               $   221,699        $   263,271
                                                             -------------      -------------
                                                             -------------      -------------
</TABLE>
 

    The accompanying notes are an integral part of these condensed consolidated
financial statements.


                                          4
<PAGE>

                             NETWORK GENERAL CORPORATION
                   CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                    (IN THOUSANDS)
                                           
<TABLE>
<CAPTION>
 

                                                                                 For the Six Months Ended September 30,
                                                                                       1997                 1996  
                                                                                    ---------            ---------
<S>                                                                                 <C>                  <C>      
                                                                                              (Unaudited)

    CASH FLOWS FROM OPERATING ACTIVITIES:
         Net income (loss)                                                          $  (8,885)           $  18,511
         Adjustments to reconcile net income (loss) to net cash provided 
              by operating activities:
         Depreciation and amortization                                                  7,057                6,093
         Acquired in-process research and development and other 
              non-recurring charges                                                    23,688                    -
         Deferred taxes, net                                                           (2,433)                (802)
         Gain on sale of investments                                                     (556)                   -
         Net change in certain assets and liabilities, net of effects of 
              acquisitions                                                             10,258              (12,021)
                                                                                    ---------            ---------
              Net cash provided by operating activities                                29,129               11,781

    CASH FLOWS FROM INVESTING ACTIVITIES:
         Purchases of held-to-maturity investments                                    (20,622)             (79,858)
         Purchases of available-for-sale investments                                  (39,791)             (24,461)
         Proceeds from maturities of held-to-maturity investments                      35,017               87,917
         Proceeds from sales/maturities of available-for-sale investments              40,546               24,816
         Cash used to purchase 3DV Technology, Inc.                                   (20,000)                   -
         Cash used to purchase Cinco Networks, Inc., net of cash
              acquired                                                                (25,079)                   -
         Net additions to property and equipment                                       (8,413)              (6,218)
                                                                                    ---------            ---------
              Net cash (used in) provided by investing activities                     (38,342)               2,196

    CASH FLOWS FROM FINANCING ACTIVITIES:
         Proceeds from issuance of common stock                                         4,594                9,644
         Repurchases of common stock                                                  (23,360)             (21,253)
                                                                                    ---------            ---------
              Net cash used in financing activities                                   (18,766)             (11,609)

    Net (decrease) increase in cash and cash equivalents                              (27,979)               2,368

    Cash and cash equivalents at beginning of period                                   48,778               34,180
                                                                                    ---------            ---------
    Cash and cash equivalents at end of period                                      $  20,799            $  36,548
                                                                                    ---------            ---------
                                                                                    ---------            ---------

    Supplemental Disclosure:
         Cash paid during the period for income taxes                               $   7,156            $   8,371
</TABLE>
 


    The accompanying notes are an integral part of these condensed consolidated
financial statements.


                                          5
<PAGE>

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
September 30, 1997
                                           
1.  BASIS OF PRESENTATION
The accompanying unaudited condensed consolidated financial statements of 
Network General Corporation ("Network General" or the "Company") have been 
prepared in accordance with generally accepted accounting principles for 
interim financial information and with the instructions to Form 10-Q and 
Article 10 of Regulation S-X.  Accordingly, they do not include all of the 
information and footnotes required by generally accepted accounting 
principles for complete financial statements.  In the opinion of management, 
the unaudited condensed consolidated financial statements reflect all 
adjustments, consisting of normal recurring adjustments, necessary for a fair 
presentation of the financial position, results of operations and cash flows 
for the interim periods presented.  These unaudited condensed consolidated 
financial statements should be read in conjunction with the consolidated 
financial statements, and notes thereto, for the year ended March 31, 1997 
included in the Company's 1997 Annual Report on Form 10-K.  The results of 
operations for the three and six months ended September 30, 1997 are not 
necessarily indicative of the results that may be expected for the fiscal 
year ending March 31, 1998.
                                           
The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting periods. 
Actual results could differ from those estimates.
                                           
2.  EARNINGS (LOSS) PER SHARE 
Earnings (loss) per share are computed using the weighted average number of
shares of common stock and, as appropriate, common stock equivalents outstanding
during the period.  Fully diluted earnings (loss) per share are the same as
primary earnings (loss) per share.
                                            
3.  RECENTLY ISSUED ACCOUNTING STANDARD
In February 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 128, "Earnings per Share" ("SFAS 128"), which
is required to be adopted by the Company in its third quarter of fiscal year
1998.  At that time, the Company will be required to change the method currently
used to compute earnings per share and to restate earnings per share for all
prior periods. Under the new requirements for calculating earnings per share,
primary earnings per share will be replaced with basic earnings per share and
fully diluted earnings per share will be replaced with diluted earnings per
share.  Under basic earnings per share, the dilutive effect of stock options
will be excluded.  No change is expected for basic loss per share compared to
reported primary loss per share for the three months and six months ended
September 30, 1997, respectively.  For the quarter and six months ended
September 30, 1996, basic earnings per share is expected to be $0.01 higher than
reported primary earnings per share.  No change is expected for diluted earnings
(loss) per share compared to fully diluted earnings (loss) per share for the
three months ended September 30, 1997 or for the six months ended September 30,
1997 and 1996.  For the quarter ended September 30, 1996, diluted earnings per
share is expected to be $0.01 higher than fully diluted earnings per share. 

4.  ACQUISITION OF CINCO NETWORKS, INC.
  
On August 5, 1997, the Company acquired all of the outstanding common stock of
Cinco Networks, Inc. ("Cinco") for cash consideration of $26.3 million.  Cinco
is a three year-old Pleasanton, California-based developer and provider of
entry-level network analysis products.  In addition, the purchase agreement
provides for contingent payments aggregating up to $13.0 million to be paid, in 
part, after the first and second year following the acquisition based on the
achievement of certain performance milestones, including product development
milestones and revenue levels.  The contingent payments are automatically
forfeited if employment terminates for specified reasons before the end of the 
respective earn-out periods and, accordingly, will be accounted for as 
compensation expense.  The compensation expense will be recognized in the 
periods 


                                          6
<PAGE>

such payments are earned and become probable based on the achievement of such
milestones.  The Company accounted for the transaction as a purchase and,
accordingly, has reflected the results of Cinco in its consolidated financial
statements since the date of acquisition.

The purchase price was allocated to the assets acquired and liabilities assumed
based on their estimated fair values as determined by an independent valuation. 
The fair value of tangible assets acquired was $1.9 million and liabilities
assumed was $1.9 million.  In addition, $23.0 million of the purchase price was
allocated to in-process research and development projects that had not reached
technological feasibility and had no probable alternative future uses, which the
Company expensed at the date of acquisition. The remainder of the purchase price
was allocated to goodwill and will be amortized over six years.

Cinco's in-process research and development projects relate primarily to the
development of significant enhancements and expansion of their current
entry-level network analysis offering as well as the planned development of
various derivative products.  These new offerings, if successfully completed,
will integrate portions of both Cinco's current and in-process entry-level
technologies and the Company's high-end network management solution.  The
efforts to complete the acquired in-process projects will primarily consist of
internally-staffed engineering costs over the next two years, which are 
expected to cost in excess of $8 million.

The following table reflects the unaudited pro forma combined results of
operations of the Company and Cinco on the basis that the acquisition had taken
place at the beginning of the fiscal year for each of the periods presented:

                                                         Six Months Ended
(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)                   September 30,
                                                     ------------------------
                                                        1997           1996  
                                                     ---------      ---------
Revenues                                             $ 125,560      $ 110,240
Net income (loss)                                       (9,515)        19,018
Earnings (loss) per share                            $   (0.22)     $    0.42
Shares used in computation                              42,731         45,735


5.  SUBSEQUENT EVENT

The Company and McAfee Associates, Inc. ("McAfee") have entered into an
Agreement and Plan of Reorganization, dated as of October 13, 1997 as amended by
the First Amendment dated October 22, 1997 (the "Reorganization Agreement"),
among the Company, McAfee and a wholly-owned subsidiary of McAfee (the "Merger
Sub").  Pursuant to the Reorganization Agreement, Merger Sub will merge with and
into the Company, the Company will continue as the surviving corporation and
will become a wholly-owned subsidiary of McAfee, and each outstanding share of
Common Stock of the Company, $0.01 par value, will be converted into 0.4167 of a
share (the "Exchange Ratio") of the common stock of McAfee (all such actions
collectively, the "Merger").  In addition, subject to the approval of McAfee
stockholders and the consummation of the Merger, the corporate name of McAfee
will be changed to "Network Associates, Inc." (the "Combined Company").  All
outstanding options to purchase Network General common stock will be assumed by
McAfee and will become options to purchase shares of the Combined Company's
common stock.  The transaction is intended to be accounted for as a pooling of
interests and qualify as a tax-free reorganization.  The Merger has been
approved by the Boards of Directors of the Company and McAfee, but is still
subject to regulatory review and approval, stockholder approval and other
conditions to closing.  A joint proxy statement and McAfee prospectus will be
delivered to the stockholders of McAfee and the Company in connection with the
special meetings of stockholders of those companies to, among other matters,
vote on the Merger and the issuance of McAfee shares pursuant thereto.


                                          7
<PAGE>

Pursuant to Section 7.3 of the Reorganization Agreement, the Reorganization 
Agreement may be terminated by either party under certain circumstances. Each 
of Network General and McAfee has agreed that if the Merger is not 
consummated as a result of certain specified events (involving, in general, a 
change in Board support for the Merger and/or an alternative transaction), it 
will pay to the other party a termination fee of $30.0 million.  Payment of the 
fees described in this paragraph shall not be in lieu of damages incurred in 
the event of material and willful breach of the Reorganization Agreement.

If the Merger is not consummated, expenses incurred in connection with the 
proposed combination (including the possible "break-up" fees described above) 
could have a material adverse effect on the Company's results of operations.

                                          8
<PAGE>

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

The following Management's Discussion and Analysis of Financial Condition and
Results of Operations contains forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933, as amended, and Section 21E of the
Securities Exchange Act of 1934, as amended, which reflect the Company's current
judgment on those issues.  Because such statements apply to future events, they
are subject to risks and uncertainties and, therefore, actual results may differ
materially.  Important factors which could cause actual results to differ
materially are described in the following paragraphs and are particularly noted
under BUSINESS RISKS in the Company's report on Form 10-K for the year ended 
March 31, 1997 and in other reports filed with the Securities and Exchange
Commission from time to time.

RESULTS OF OPERATIONS

Revenues for the quarter ended September 30, 1997 increased 16% to $64.6 million
compared to revenues of $55.5 million for the quarter ended September 30, 1996. 
Revenues for the six months ended September 30, 1997 increased 15% to $122.9
million compared to revenues of $107.2 million for the six months ended
September 30, 1996.  Revenue growth was attributable to continued acceptance of
the Company's tool and system products and services offerings, as well as
expansion into indirect channels and international markets.

Domestic revenues increased 14% to $48.3 million for the quarter ended 
September 30, 1997 compared to $42.4 million for the quarter ended September 
30, 1996. Domestic revenues increased 13% to $91.6 million for the six months 
ended September 30, 1997 compared to $81.3 million for the six months ended 
September 30, 1996.  International revenues increased 24% to $16.3 million 
for the quarter ended September 30, 1997 compared to $13.2 million for the 
same period in 1996.  International revenues increased 21% to $31.3 million 
for the six months ended September 30, 1997 compared to $25.9 million for the 
six months ended September 30, 1996.  European revenues grew 33% and 29% for 
the quarter and six months ended September 30, 1997, respectively, compared 
to the same periods in fiscal year 1997, as a result of the Company's 
European sales strategy involving both direct and indirect sales channels.  
Pacific Rim, Latin American and Canadian revenues increased 18% and 16% for 
the quarter and six months ended September 30, 1997, respectively, compared 
to the same periods in fiscal year 1997, due to increased sales volumes by 
the Company's exclusive partner in Japan and increased Canadian sales. 

                                          9
<PAGE>

                                   Three Months Ended      Six Months Ended
                                      September 30,          September 30,
                                  --------------------    --------------------
                                             (Dollars in thousands)

SOURCES OF REVENUES                 1997        1996        1997        1996  
                                  --------    --------    --------    --------
Tool products (1)                 $ 30,000    $ 28,092    $ 56,904    $ 55,128
System products (2)                 18,852      15,534      34,965      29,137
                                  --------    --------    --------    --------
     Subtotal product revenues      48,852      43,626      91,869      84,265
Services (3)                        15,748      11,919      31,054      22,960
                                  --------    --------    --------    --------
Total revenues                    $ 64,600    $ 55,545    $122,923    $107,225
                                  --------    --------    --------    --------
                                  --------    --------    --------    --------

PERCENTAGES OF REVENUES
Tool products                          47%         51%         46%         52%
System products                        29%         28%         29%         27%
                                  --------    --------    --------    --------
     Subtotal product revenues         76%         79%         75%         79%
Services                               24%         21%         25%         21%
                                  --------    --------    --------    --------
Total revenues                        100%        100%        100%        100%
                                  --------    --------    --------    --------
                                  --------    --------    --------    --------

(1) Tool products revenues were derived principally from sales of the 
    Sniffer-Registered Trademark- Network Analyzer ("Sniffer") local area 
    network (LAN) analysis products, wide area network (WAN) analysis 
    products and the NetXRay-Registered Trademark- analysis products. In 
    addition, the Company derived tool products revenues from the resale of 
    third party products, including Ganymede Software, Inc.'s Chariot network 
    performance test tools.
 
(2) System products revenues were derived principally from the Distributed 
    Sniffer System-Registered Trademark- analysis products. In addition, the 
    Company derived system products revenues from its Service Level Manager 
    monitoring products and the 3DV Proactive Management (PM) analysis 
    products, as well as third party remote monitoring products.
 
(3) Services revenues include first-year warranty revenues as defined by
    Statement of Position 91-1, "SOFTWARE REVENUE RECOGNITION" and revenues
    from Sniffer product rentals, software support, maintenance contracts and
    education and consulting services.

The Company's tool products revenues were $30.0 million for the quarter ended 
September 30, 1997, a 7% increase compared to $28.1 million for the quarter 
ended September 30, 1996.  Tool products revenues were $56.9 million for the 
six months ended September 30, 1997, a 3% increase compared to $55.1 million 
for the six months ended September 30, 1996.  The increases were due to 
higher Sniffer Network Analyzer ("Sniffer") and NetXRay product sales as well 
as increased sales of third party products. Revenues from Sniffer product 
sales accounted for substantially all of the Company's tool products revenues 
in both the three and six month periods ended September 30, 1997 and 1996, 
respectively.

Revenues for the quarter ended September 30, 1997 included $18.9 million of
system products revenues, a 21% increase compared to $15.5 million for the
quarter ended September 30, 1996.  For the six months ended September 30, 1997,
system products revenues were $35.0 million, a 20% increase compared to $29.1
million for the six months ended September 30, 1996.  The Distributed Sniffer
System analysis products accounted for a majority of these increases and the
majority of the Company's system products revenues in both the three and six
month periods ended September 30, 1997 and 1996, respectively.  Sales of third
party products also contributed to the increases in systems revenues.

Services revenues include revenues from software support, maintenance 
contracts and education and consulting services, as well as those revenues 
from the first-year warranty period of customer support which have been 
deferred and recognized in accordance with SOP 91-1, "SOFTWARE REVENUE 
RECOGNITION."  For the quarter ended September 30, 1997, services revenues 
increased 32% to $15.7 million compared to $11.9 million for the quarter 
ended September 30, 1996.  For the six months ended September 30, 1997, 
services revenues increased 35% to $31.1 million compared to $23.0 million 
for the six months ended September 30, 1996.  The increases in services 
revenues resulted from growth 

                                          10

<PAGE>

in all categories of services revenues, but principally due to the growth of the
installed customer base and the resulting renewal of maintenance contracts.  In
addition, the Company experienced increased demand for its education and
consulting services.

Cost of revenues consists of manufacturing costs, cost of services, royalties
and warranty expenses.  Gross margin as a percentage of revenues decreased to
74% for the quarter ended September 30, 1997 from 75% for the quarter ended
September 30, 1996.  For the six months ended September 30, 1997, gross margin
decreased to 73% compared to 75% for the six months ended September 30, 1996.
These decreases resulted from higher growth in services revenues which have
historically lower gross margins than the Company's products and changes in the
mix of products sold (increased sales of third party products which have a
higher cost of revenue than the Company's own products).

Sales and marketing expenses increased 27% to $22.8 million for the quarter
ended September 30, 1997, compared to $17.9 million for the same period in
fiscal year 1997.  For the six months ended September 30, 1997, sales and
marketing expenses increased 25% to $43.6 million compared to $34.9 million for
the six months ended September 30, 1996.  These increases were due primarily to
increases in staffing, sales programs and commission expenses required to
support increased sales volumes.  As a percentage of revenues, sales and
marketing expenses increased to 35% for the quarter ended September 30, 1997
compared to 32% for the quarter ended September 30, 1996 and 36% for the six
months ended September 30, 1997 compared to 33% for the six months ended
September 30, 1996.  These increases are primarily due to revenues being lower
than anticipated, resulting in higher expenses relative to revenues.

Research and development expenses increased 34% to $10.0 million for the quarter
ended September 30, 1997 compared to $7.4 million for the quarter ended
September 30, 1996.  For the six months ended September 30, 1997, research and
development expenses increased 33% to $19.4 million compared to $14.6 million
for the same period in fiscal year 1997. These increases in spending were the
result of increased staffing and equipment expense to support the development of
new products expected to be released in the second half of fiscal year 1998 and
beyond.  As a percentage of revenues, research and development expenses
increased to 15% for the quarter ended September 30, 1997 compared to 13% for
the quarter ended September 30, 1996 and 16% for the six months ended September
30, 1997 compared to 14% for the six months ended September 30, 1996.

General and administrative expenses for the quarter ended September 30, 1997
increased 21% to $4.4 million compared to $3.6 million for the quarter ended
September 30, 1996.  For the six months ended September 30, 1997, general and
administrative expenses increased 20% to $8.8 million compared to $7.3 million
for the six months ended September 30, 1996.  These increases in general and
administrative expenses were primarily due to increased staffing and related
expenses to support operations.  General and administrative expenses as a
percentage of revenues were 7% for the three and six months ended September 30,
1997 and 1996, respectively.

Acquired in-process research and development and other non-recurring charges
were $23.7 million for the quarter and six months ended September 30, 1997.
Acquired in-process research and development charges of $23.0 million reflect
the value of development projects in process at the time of the acquisition of
Cinco Networks, Inc. ("Cinco") and were charged to operations on August 5, 1997,
the effective date of the acquisition.  The amount allocated to acquired
in-process research and development related to projects which had not reached
technological feasibility and had no probable alternative future uses.  (See
Note 4 of Notes to Consolidated Financial Statements (Unaudited)).  Other
non-recurring charges for the three and six months ended September 30, 1997
include $0.7 million associated with management reorganizations and relocations,
as well as office relocations in connection with the Cinco acquisition.  There
were no acquired in-process research and development charges or other
non-recurring charges for the three and six months ended September 30, 1996.

Interest and other income, net decreased to $1.3 million for the quarter ended
September 30, 1997 compared to $1.6 million for the quarter ended September 30,
1996.  For the six months ended


                                          11
<PAGE>

September 30, 1997, interest and other income, net increased to $3.9 million
compared to $3.3 million for the six months ended September 30, 1996.  The
decrease in interest and other income, net for the quarter ended September 30,
1997 was the result of lower invested cash balances due to payments made for the
acquisition of 3DV Technology, Inc. ("3DV") on March 31, 1997 and Cinco on
August 5, 1997.  The increase in interest and other income, net for the six
months ended September 30, 1997 compared to the six months ended September 30,
1996 was primarily the result of gains on the sale of investments.

Excluding the impact of the Cinco acquisition, the provision for income taxes
was 33.5% for the quarter and six months ended September 30, 1997, compared to
30.5% for the three and six months ended September 30, 1996. Substantially all
of the Company's operating loss carryforwards were utilized at the end of fiscal
year 1997, resulting in a higher tax rate in fiscal year 1998.

Earnings (loss) per share for the quarter ended September 30, 1997 was a loss of
$0.37 per share compared to earnings of $0.22 per share for the same period in
fiscal year 1997.  For the six months ended September 30, 1997, earnings (loss)
per share was a loss of $0.21 per share compared to earnings per share of $0.41
for the six months ended September 30, 1996.  Excluding one-time charges of
$23.7 million, earnings per share would have been $0.18 and $0.34 for the
quarter and six months ended September 30, 1997, respectively.  Excluding the
one-time charge, the decrease in earnings per share for the quarter and six
months ended September 30, 1997 was due to higher operating expenses relative to
the increased revenues and gross margin dollars.

LIQUIDITY AND CAPITAL RESOURCES

Cash, cash equivalents, marketable securities and long-term investments 
decreased by $42.1 million during the six months ended September 30, 1997 to 
$122.8 million from $164.9 million at March 31, 1997.  This decrease resulted 
primarily from:  the $20.0 million payment in April 1997 for the 3DV 
acquisition; the $25.1 million (net of cash acquired) payment for the Cinco 
acquisition in August 1997; and $23.4 million in common stock repurchases.  
These decreases were partially offset by $29.1 million of cash provided by 
operating activities.

The net cash provided by operating activities was $29.1 million for the six 
months ended September 30, 1997 compared to net cash provided by operating 
activities of $11.8 million for the six months ended September 30, 1996.  For 
the period ended September 30, 1997, the primary source of these funds was 
income from operations, adjusted for the write-off of acquired in-process 
research and development related to the acquisition of Cinco and other 
non-recurring charges, depreciation and amortization and net changes in 
certain assets and liabilities, offset by increased deferred taxes, net and 
the gain on the sale of investments.  For the same period in fiscal year 
1997, the source of these funds was net income adjusted for depreciation and 
amortization, offset by net changes (uses) in certain assets and liabilities.

The net cash used in investing activities was $38.3 million for the six months
ended September 30, 1997 compared to net cash provided by investing activities
of $2.2 million for the six months ended September 30, 1996.  Net cash used in
investing activities during the first six months of fiscal year 1998 reflects
the payment of $20.0 million for the March 31, 1997 acquisition of 3DV, $25.1
million (net of cash acquired) for the acquisition of Cinco in August 1997,
purchases of investments and net additions to property and equipment, offset by
proceeds from sales/maturities of investments.  Net cash provided by investing
activities during the first six months of fiscal year 1997 reflects proceeds
from sales/maturities of held-to-maturity and available-for-sale investments,
net of property and equipment and investment purchases.

The net cash used in financing activities was $18.8 million for the six months
ended September 30, 1997 and $11.6 million for the six months ended September
30, 1996.  During the first six months of fiscal year 1998, repurchases of
common stock totaled $23.4 million, offset by proceeds of $4.6 million from the
issuance of common stock under the Company's stock option plans.  Net cash used
in financing activities


                                          12
<PAGE>

during the first six months of fiscal year 1997 reflects stock repurchases
totaling $21.3 million, offset by proceeds of $9.6 million from stock issuances
under the Company's stock option plans.

The Company currently has no outstanding bank borrowings or any established
lines of credit.  The Company believes cash generated from operations, together
with existing cash and investment balances, will be sufficient to satisfy
operating cash and capital expenditure requirements through at least the next
twelve months.

SUBSEQUENT EVENT

The Company and McAfee Associates, Inc. ("McAfee") have entered into an
Agreement and Plan of Reorganization, dated as of October 13, 1997 as amended by
the First Amendment dated October 22, 1997 (the "Reorganization Agreement"),
among the Company, McAfee and a wholly-owned subsidiary of McAfee (the "Merger
Sub").  Pursuant to the Reorganization Agreement, Merger Sub will merge with and
into the Company, the Company will continue as the surviving corporation and
will become a wholly-owned subsidiary of McAfee, and each outstanding share of
Common Stock of the Company, $0.01 par value, will be converted into 0.4167 of a
share (the "Exchange Ratio") of the common stock of McAfee (all such actions
collectively, the "Merger").  In addition, subject to the approval of McAfee
stockholders and the consummation of the Merger, the corporate name of McAfee
will be changed to "Network Associates, Inc." (the "Combined Company").  All
outstanding options to purchase Network General common stock will be assumed by
McAfee and will become options to purchase shares of the Combined Company's
common stock.  The transaction is intended to be accounted for as a pooling of
interests and qualify as a tax-free reorganization.  The Merger has been
approved by the Boards of Directors of the Company and McAfee, but is still
subject to regulatory review and approval, stockholder approval and other
conditions to closing.  A joint proxy statement and McAfee prospectus will be
delivered to the stockholders of McAfee and the Company in connection with the
special meetings of stockholders of those companies to, among other matters,
vote on the Merger and the issuance of McAfee shares pursuant thereto.

Pursuant to Section 7.3 of the Reorganization Agreement, the Reorganization 
Agreement may be terminated by either party under certain circumstances. Each 
of Network General and McAfee has agreed that if the Merger is not 
consummated as a result of certain specified events (involving, in general, a 
change in Board support for the Merger and/or alternative transaction), it 
will pay to the other party a termination fee of $30.0 million.  Payment of the 
fees described in this paragraph shall not be in lieu of damages incurred in 
the event of material and willful breach of the Reorganization Agreement.

If the Merger is not consummated, expenses incurred in connection with the 
proposed combination (including the possible "break-up" fees described above) 
could have a material adverse effect on the Company's results of operations.

BUSINESS RISKS

The following is a summary of risks affecting the business and results of
operations of Network General Corporation ("Network General") and should be read
in conjunction with the description of the Company's business contained in the
Company's Form 10-K for the year ended March 31, 1997 (the "1997 10-K") and in
other documents filed by the Company with the Securities and Exchange
Commission.

    ANNOUNCEMENT OF THE PROPOSED BUSINESS COMBINATION WITH MCAFEE.  Various
risks related to the announcement of the proposed Merger with McAfee could have
a material adverse effect on the Company's business, operating results and
financial condition.  Among other things, there can be no assurance customers of
the Company will continue their current or historical buying patterns without
regard to the proposed Merger, or that certain customers will not defer
purchasing decisions as they


                                          13
<PAGE>

evaluate, among other things, the proposed Merger, or that certain existing 
and prospective customers will not decide to purchase products from the 
Company's competitors instead of purchasing the Company's products.  The 
Company's continued success depends to a significant degree upon the 
continuing contribution of key employees in management, development, sales, 
technical support and administration.  Existing employees are likely to have 
uncertainty as to their future roles in the Combined Company.  Persons being 
recruited for positions in the Company may have similar uncertainty and defer 
or reverse decisions to become employed by the Company.  In addition, 
competitors of the Company may use this uncertainty to attempt to recruit 
such employees or prospective employees and make it more difficult for the 
Company to retain and attract key employees. In addition, the Company expects 
to incur significant expenses in connection with the proposed Merger, whether 
or not it is consummated.  If the Merger is not consummated, such expenses, 
which may include the "break-up" fees described under "Subsequent Events" 
above, could have a material adverse effect on the Company's results of 
operations.

If the proposed Merger occurs, each share of the Company's common stock 
outstanding at the time of the Merger will be converted into the right to 
receive 0.4167 of a share (the "Exchange Ratio") of McAfee common stock. 
Because the Exchange Ratio is fixed, it will not increase or decrease due to 
fluctuations in the market price of either McAfee or the Company's common 
stock. However, because the Exchange Ratio is fixed, the market price of the 
Company's common stock will likely move in the same general direction as does 
McAfee's stock prior to the effective time of the Merger.  If the market 
price of McAfee common stock decreases or increases prior to the effective 
time of the Merger, the market value of the McAfee common stock to be 
received by Company stockholders at the effective time of the proposed Merger 
would correspondingly decrease or increase.

    FLUCTUATIONS IN PERIODIC RESULTS.  The Company's operating results can vary
substantially from period to period. Causes of such fluctuations may include the
volume and timing of new orders, renewals of support agreements, the
introduction of new products, changes in product prices, changes in product mix,
seasonality, trends in the computer and networking industry, general economic
conditions, extraordinary events such as acquisitions or litigation and the
occurrence of unexpected events.

The Company had a slower growth rate for the first half of fiscal year 1998 than
experienced for the same period of fiscal year 1997.  Management believes the
lower growth rate was due to a number of factors including lower order growth
rates than experienced in recent prior periods due principally to order weakness
in Europe during the first fiscal quarter and longer sales cycles domestically,
increased staffing in the Company's research and development, direct sales and
service organizations, anticipated decreases in investment balances, the
dilutive effect of 3DV and Cinco operations and a higher planned tax rate.  The
Company currently expects to achieve sequential quarterly revenue growth during
the remainder of calendar year 1997, unless customers defer purchase decisions
pending the consummation of the proposed Merger.  There can be no assurance the
Company's actual results will meet the operating plan for fiscal year 1998 or
any particular quarter.

Over the last two fiscal years, gross margin as a percentage of revenue declined
from 77% to 74% due principally to three factors: increased sales of third party
products which generally have lower gross margins for the Company; increased
revenue attributable to services which have a high labor cost and thus lower
gross margin than the Company's product sales; and increased pressure to reduce
prices or grant higher price discounts.  The Company has been successful in
offsetting these declines in gross margin by controlling operating expenses.  If
the Company is unable to continue to offset future gross margin declines, if
any, by continued control of operating expenses, the Company's operating results
could be materially adversely affected.

The timing and amount of the Company's product revenues are subject to a number
of factors that make estimating operating results prior to the end of a quarter
extremely difficult.  Historically, the Company has not maintained a significant
level of backlog and, as a result, product revenues in any quarter are


                                          14
<PAGE>

dependent on contracts entered into or orders booked and shipped in that
quarter.  During fiscal year 1998, the Company generally experienced a trend
toward higher order receipts toward the end of each quarter, resulting in a
higher percentage of revenue shipments during the last month of a quarter than
in fiscal year 1997, which makes predicting results more difficult.  The timing
of closing large product sales or licensing transactions increases the risks of
quarter-to-quarter fluctuations and the uncertainty of estimating quarterly
operating results.

Planned operating expenses are normally targeted to planned revenue levels for
the period and are incurred ratably throughout the period.  If expenses remain
relatively fixed, but the Company's revenues are less than planned in any
quarter, Network General's operating results would be adversely affected for
that quarter.  Recently, the Company has experienced a trend toward higher order
rates and revenue shipments in the last month of a quarter.  These trends make
it more difficult to minimize the impact of a revenue shortfall by reducing
spending levels.  In addition, incurring unplanned expenses could adversely
affect operating results for the period in which such expenses are incurred.

Failure to achieve periodic revenue, earnings and other operating and financial
results as forecasted or anticipated by brokerage firms or industry analysts
could result in an immediate and adverse effect on the market price of the
Company's common stock.  The Company may not discover, or be able to confirm,
revenue or earnings shortfalls until the end of a quarter, which could result in
a greater immediate and adverse effect on the Company's stock price.

    INTEGRATION OF ACQUIRED COMPANIES.  The Company acquired 3DV and Cinco 
with the expectations the acquisitions would result in beneficial synergies 
for the combined operation, including the enhancement of the products offered 
by the Company's Systems Technology and Analysis Tools Business Units and 
expansion of the Company's penetration into the entry-level and high-end 
markets.  The enhancement of product offerings requires the successful 
integration of key 3DV and Cinco technology with the Company's Total Network 
Visibility architecture and of personnel (the engineering departments of 3DV 
and the Company's Systems Technology Business Unit and of the research and 
development groups of Cinco and the Company's Analysis Tools Business Unit), 
as well as customer acceptance of the 3DV and Cinco technologies.  In 
addition, the Company intends to continue selling 3DV and Cinco products on a 
standalone basis for the foreseeable future, the success of which is 
dependent on the integration of the two companies' sales forces and the 
training of Network General's direct and indirect sales forces as to the 
products of the acquired companies.  Cinco's NetXRay protocol analyzer 
provides functionality which is a subset of the functionality provided by 
Network General's Sniffer family of products. Certain customers of the 
Company's Sniffer products are also using NetXRay products for different 
levels of network analysis and the Company expects customers will continue to 
need and purchase both of these products.  There is a risk, however, certain 
customers may perceive the lower-priced NetXRay products to contain 
sufficient functionality and decide not to purchase Sniffer products which 
may have a higher selling price.  There can be no assurance the integration 
of technology, engineering departments or sales organizations will be 
successful or will not take longer than anticipated or that unit sales and\or 
selling prices of Sniffer products will not be adversely impacted by sales 
and\or pricing of NetXRay products.

    CUSTOMER PURCHASE DECISIONS.  The products offered by the Company may be
considered capital purchases by certain customers or prospective customers.
Capital purchases are often considered discretionary and, therefore, are
cancelled or delayed if the customer experiences a downturn in its business or
prospects or as a result of economic conditions in general. In addition,
customers may elect to delay decisions to buy the Company's products because of
the announcement of the proposed Merger with McAfee.  Any such cancellation or
delay could adversely affect the Company's operating results.

    DEPENDENCE ON REVENUE FROM FLAGSHIP PRODUCTS.  The Company derives the 
majority of its net revenue from its Sniffer Network Analyzer and Distributed 
Sniffer System lines of network fault and performance management products.  
These products are expected to continue to account for a significant portion 
of the Company's net revenue for the foreseeable future.  Because of this 
concentration of

                                          15
<PAGE>

revenue, a decline in demand for, or in the prices of, these network management
products as a result of competition, technological change, the inclusion of
network management analysis functionality in operating system or other software
or otherwise, or a maturation in the respective markets for these products could
have a material adverse effect on the Company's business, financial condition
and results of operations.

    PRODUCT DEVELOPMENT.  Network General's long-term success will depend on
its ability to enhance its product offerings and to introduce new products on a
timely and cost-effective basis which meet the needs of its current and future
customers.  The Company remains committed to adding new technologies and
products through continued investments in research and development and through
strategic acquisitions.  During fiscal year 1997, the Company announced its
Total Network Visibility open application architecture intended to provide
enterprise-wide management of complex heterogeneous client-server environments.
The success of the architecture is dependent on the development of applications
to help manage key areas of interest for users and customer acceptance of those
applications.  However, there can be no assurance Network General will be
successful in developing new products or in enhancing existing products or that
new or enhanced products will meet market requirements.  Network General has,
from time to time, experienced delays in introducing new products.  The Company
believes such delays have not been materially harmful to the Company's business
or reputation.  There can be no assurance Network General will not experience
delays in connection with its current or future product development activities
(including Network General's recently announced CyberCop network security
program).  Delays and difficulties associated with new product introductions,
performance or enhancements could have a material adverse effect on the
Company's business, financial condition and results of operations.

    INTERNATIONAL SALES AND ACTIVITIES.  Revenues derived from Network
General's international operations continue to increase in absolute dollars.
Such international revenue accounted for 27% and 26% for fiscal 1997 and for the
six months ended September 30, 1997, respectively. The Company's selling
strategy in Europe continues to transition from indirect to direct selling,
while the Company's selling efforts in the Middle East, Africa, the Pacific Rim
and Asia remain largely indirect (i.e. through independent distributors).
Additionally, the Company's results were negatively impacted by some weakening
in the European market for networking products during the quarter ended June 30,
1997.  These factors may limit the Company's ability to achieve its growth
objectives in Europe in the near term.  While most of the Company's sales or
license transactions are U.S. dollar denominated, a growing number of
transactions, particularly in Europe, are invoiced in local currency.   The
Company has sales and support offices throughout Europe and, to a lesser extent,
the Pacific Rim and Latin American territories.  Expenses of the overseas
operations are incurred in local currency.  Accordingly, Network General has
exposure for potential losses in the value of foreign currency transactions
relative to the U.S. dollar between the time the transaction is entered on the
Company's financial statements and the time the receivable or expense is paid.
To minimize the impact of foreign currency fluctuations, the Company maintains a
hedging program to cover foreign currency-based transaction exposures.  The
current program uses foreign exchange forward contracts and may, in the future,
include other means such as foreign currency option contracts.  There can be no
assurance the Company's hedging program will continue to minimize any adverse
impact of foreign currency exchange rate fluctuations.  Also, Network General's
operations could be adversely affected by other factors associated with
international operations such as uncertainties relative to regional economic
circumstances, political instability in emerging markets and difficulties
staffing and managing foreign operations.

    COMPETITION.  The Company competes with an array of established and
emerging computer, communications, intelligent network wiring, network
management and test equipment companies.  Some of these companies have greater
financial, technological and personnel resources than those of Network General.
The smaller competitors are often willing to offer lower pricing or other
favorable terms for products competitive with those of the Company.  This could
result in pressure on the Company to


                                          16
<PAGE>

reduce pricing on its products unless it is able to prevail on the sale by
successfully differentiating the benefits and functionality of the Company's
products compared to those of the competitor.  Moreover, new competitors, new
technology and new marketing techniques may cause customer confusion, thereby
lengthening the sales cycle process for the Company's products.

    RETENTION OF KEY PERSONNEL.  The Company's ability to achieve its revenue
and operating performance objectives will depend in large part on its ability to
attract and retain technically qualified and highly skilled sales, consulting,
technical, marketing and management personnel.   Network General competes for
engineers for its development organizations principally in California's Silicon
Valley and in Oregon against companies with far greater resources and broader
focus in the networking industry.  It vies for all of its personnel with other
members of the networking product industry, where competition for such personnel
is intense and is expected to remain so for the foreseeable future. These
recruitment and retention efforts may be adversely affected by the announcement
of the proposed Merger with McAfee.  Failure to retain and grow its key employee
population could adversely affect Network General's business and operating
results.

    IMPORTANCE OF MICROSOFT.  Microsoft's Windows operating system has gained 
widespread market acceptance and is currently the dominant computer operating 
system.  While the Company's current product offerings serve multiple 
operating environments, the Company expects to emphasize the compatibility of 
its future product offerings with Windows, Windows 95 or Windows NT as their 
operating environments. The Company's flagship Sniffer Network Analyzer and 
Distributed Sniffer System products do not currently operate under the 
Windows environment; however, the Company sells the NetXRay Windows-based 
network analyzer developed by Cinco.  In addition, Network General intends 
that its next generation of Sniffer products will operate in the Windows 
environment.  Network General's ability to offer future network management 
products running under Windows, Windows 95 or Windows NT will be dependent on 
its ability to develop and expand its expertise in these operating systems. 
Because the Company expects a significant portion of its revenue to be 
derived from sales of products operating under a Windows operating system, 
sales of such products would be materially and adversely affected by market 
developments which are adverse to the Windows operating environments, 
including the failure of users and application developers to accept Windows 
NT.  In addition, the Company's ability to develop products using the Windows 
operating environments is substantially dependent on its ability to gain 
timely access to, and to develop expertise in, current and future 
developments by Microsoft, of which there can be no assurance.

    INTELLECTUAL PROPERTY.  The Company relies on a combination of trade
secret, copyright, and trademark laws and contractual provisions to protect its
proprietary rights in its products.  There can be no assurance these protections
will be adequate or that competitors will not independently develop technologies
that are substantially equivalent or superior to Network General's products.
There has been a trend toward litigation regarding patent and other intellectual
property rights in the software industry.  Although there are currently no
lawsuits pending against the Company regarding possible infringement claims,
there can be no assurance such claims will not be asserted in the future or that
such assertions will not materially adversely affect the Company's business,
financial condition and results of operations.  Any such suit, whether or not
having merit, would be costly to the Company in terms of employee time and
defense costs and could materially adversely affect Network General and its
business, financial condition and results of operations.  If an infringement or
misappropriation claim is asserted against Network General, the Company may need
to obtain a license from the claimant to use the intellectual property rights.
There can be no assurance such a license will be available on reasonable terms
or at all.  Failure to obtain a license on commercially reasonable terms could
materially adversely affect the Company's business, financial condition and
results of operations.

    SALES CHANNELS.  The Company has expanded its use of indirect product
resale channels in certain territories (particularly North America) and has
added a direct sales force in other territories (particularly


                                          17
<PAGE>

Europe) previously served only by indirect sales channels.  The existence of
direct and indirect sales channels may lead to conflict for the same customer,
pressure by current and prospective customers for price reductions on the
Company's products and reductions in the Company's gross margin and operating
profit.  In addition, the success of a direct sales organization in a territory
formerly covered by an independent distributor is dependent on a number of
factors, including the ability to attract and retain qualified sales personnel,
timely and effective training of the sales force and obtaining access to and
penetrating the prospective customer base previously addressed by the prior
reseller.  For certain countries, the Company maintains a resale agreement with
a single reseller that either has exclusive distribution rights for the
territory or has no other Network General reseller competing with it in the
territory.  The failure of such a reseller to perform its sales generation and
support obligations under the distribution agreement could adversely affect the
Company's revenue from, and reputation with, customers in the territory.

    SUPPLIER DEPENDENCE.  Certain of the Company's products contain critical
components supplied by a single or a limited number of third parties.  The
Company has been required to purchase and inventory certain of the computer
platforms around which it designs its products so as to ensure an available
supply of the product for its customers.  Any significant shortage of these
platforms or other components or the failure of the third party supplier to
maintain or enhance these products could lead to cancellations of customer
orders or delays in placement of orders which could materially adversely affect
the Company's results of operations.  If the Company's purchase of such
components or platforms exceeds demand, the Company could incur losses or other
charges in disposing excess inventory, which could also materially adversely
affect the Company's operating results.


    VOLATILITY OF STOCK PRICE.  The trading price of the Company's common stock
has historically been and is expected to be subject to wide fluctuations in
response to quarterly variations in financial performance, shortfalls in revenue
or earnings from levels forecast by securities analysis, changes in estimates by
such analysts, market conditions in the computer software, hardware or
networking industries, announcements of extraordinary events such as
acquisitions or litigation or general economic conditions.  In addition, in
recent years the stock market has experienced extreme price and volume
fluctuations.  These fluctuations have had a substantial effect on the market
prices for many high technology and emerging growth companies, often unrelated
to the operating performance of the specific companies.  There can be no
assurance such fluctuations in price of the common stock of the Company will not
continue in the future.


                                          18
<PAGE>


PART II.  OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

From time to time the Company has been, or may become, involved in litigation
proceedings incidental to the conduct of its business.  The Company does not
believe any such proceedings presently pending will have a material adverse
effect on the Company's financial position or its results of operations.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

The annual meeting of stockholders of the Company was held on August 8, 1997.
The matters presented to the stockholders in connection with that meeting and
the vote on those matters were as follows:

    (a)  Election of three Class I Directors to hold office for three-year
         terms expiring with the annual meeting of stockholders in the year
         2000:

         Charles J. Abbe               Shares voted in favor:     37,072,140
                                       Shares withheld:              211,444

         Howard Frank                  Shares voted in favor:     37,072,680
                                       Shares withheld:              210,904

         Harry J. Saal                 Shares voted in favor:     37,071,079
                                       Shares withheld:              212,505

    (b)  Amendment of the Company's 1989 Stock Option Plan to increase the
         number of shares of the Company's Common Stock reserved for issuance
         thereunder by 1,500,000:

              Shares voted in favor:   21,915,633
              Shares voted against:    15,217,779
              Shares abstained:            64,385
              Broker non-votes:            85,787

    (c)  Amendment of the Company's 1989 Employee Stock Purchase Plan to
         increase the number of shares of the Company's Common Stock reserved
         for issuance thereunder by 500,000:

              Shares voted in favor:   35,407,010
              Shares voted against:     1,737,691
              Shares abstained:            53,096
              Broker non-votes:            85,787

    (d)  Ratification of the appointment of Arthur Andersen LLP as the
         Company's independent public accountants for the current fiscal year:

              Shares voted in favor:   37,230,120
              Shares voted against:        22,959
              Shares abstained:            30,505


                                          19
<PAGE>

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K:

1) Exhibits

Exhibit
Number                  Exhibit Title
- ------                   -------------

2.1                     Agreement and Plan of Reorganization dated October 13,
                        1997, as amended by First Amendment dated as of October
                        22, 1997, (the "Reorganization Agreement") among McAfee 
                        Associates, Inc., Mystery Acquisition Corp., a 
                        wholly-owned subsidiary of McAfee, and the Company. 
                        (This agreement contains a list identifying all omitted 
                        exhibits. The Company agrees to furnish supplementally a
                        copy of any omitted exhibit to the Securities and 
                        Exchange Commission upon request.)

2.2                     Form of Network General Corporation Voting Agreement 
                        between McAfee Associates, Inc. and affiliates of the 
                        Company entered into pursuant to, and included as 
                        Exhibit A-1 to, the Reorganization Agreement.

2.3                     Form of McAfee Associates, Inc. Voting Agreement 
                        between Network General Corporation and affiliates of 
                        McAfee Associates, Inc. entered into pursuant to, and 
                        included as Exhibit A-2 to, the Reorganization 
                        Agreement.

3.1                     Third restated certificate of Incorporation of Network
                        General Corporation, a Delaware corporation, which is
                        incorporated by reference to Exhibit 4.1 of the
                        Registration Statement on Form S-8 (Registration No.
                        333-12187) filed with the SEC on September 17, 1996.

3.2                     Amended and Restated Bylaws of Network General
                        Corporation, which is incorporated by reference to
                        Exhibit 3.2 of the Company's Quarterly Report on Form
                        10-Q for the quarter ended September 30, 1995.

4.1                     Registration Rights Agreement between the Company and
                        certain investors dated December 31, 1987, which is
                        incorporated by reference to Exhibit 4.2 of the
                        Company's Registration Statement No. 33-26107 on Form
                        S-1, which became effective February 2, 1989 ("Form
                        S-1").

4.2                     Rights Agreement between the Company and Chemical Trust
                        Company of California dated June 26, 1992, as amended,
                        which is incorporated by reference to Exhibit 4.2 of
                        the Company's Annual Report on Form 10-K for the year
                        ended March 31, 1993.

10.1                    Standard Business Lease (Net) for the Company's
                        principal facility dated June 18, 1991, between the
                        Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.3 of the
                        Company's Annual Report on Form 10-K for the year ended
                        March 31, 1991.

10.2                    First Amendment to Lease dated June 10, 1992, between
                        the Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.3 of the
                        Company's Annual Report on Form 10-K for the year ended
                        March 31, 1992 ("1992 Form 10-K").

10.3                    Standard Business Lease (Net) for the Company's
                        principal facility dated March 11, 1992, between the
                        Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.4 of the 1992
                        Form 10-K.

10.4                    First Amendment to Lease dated June 18, 1992, between
                        the Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.5 of the 1992
                        Form 10-K.

10.5                    Lease dated March 31, 1992, between the Company and
                        Equitable Life Assurance Society of the United States,
                        which is incorporated by reference to Exhibit 10.4 of
                        the 1992 Form 10-K.

10.6                    Description of Company's Cash Bonus Plan, which is
                        incorporated by reference to Exhibit 10.6 of the
                        Form S-1.


                                          20
<PAGE>

10.7                    Form of Director and Officer Indemnification Agreement,
                        which is incorporated by reference to Exhibit 10.7 of
                        the Form S-1.

10.8                    Amended and Restated 1989 Outside Directors Stock
                        Option Plan and related documentation, which is
                        incorporated by reference to Exhibit 10.8 of the
                        Company's Quarterly Report on Form 10-Q for the quarter
                        ended September 1996 (the "September 1996 10-Q").

10.9                    Form of Stock Purchase Agreement used in conjunction
                        with the 1989 Outside Directors Stock Option Plan,
                        which is incorporated by reference to Exhibit 10.15 to
                        the Company's Annual Report on Form 10-K for the year
                        ended March 31, 1989.

10.10                   OEM Agreement dated August 3, 1991 between the Company
                        and NCR Corporation which is incorporated by reference
                        to Exhibit 10.18 of the Company's Registration
                        Statement No. 33-45580 on Form S-3 which became
                        effective on April 6, 1992.

10.12                   Agreement dated April 8, 1994 between the Company and
                        PNJ Engineering providing for a lump sum settlement of
                        a royalty obligation between the Company and PNJ
                        Engineering, which is incorporated by reference to
                        Exhibit 10.19 of the 1994 Form 10-K.

10.13                   Employment agreement dated April 6, 1994 between the
                        Company and Leslie Denend, which is incorporated by
                        reference to Exhibit 10.21 of the Company's Quarterly
                        Report on Form 10-Q for the quarter ended June 30, 1994
                        ("June 1994 Form 10-Q").

10.14                   Employment agreement dated April 6, 1994 between the
                        Company and James T. Richardson, which is incorporated
                        by reference to Exhibit 10.22 of the June 1994 Form
                        10-Q.

10.15                   Employment agreement dated April 6, 1994 between the
                        Company and Richard Lewis, which is incorporated by
                        reference to Exhibit 10.23 of the June 1994 Form 10-Q.

10.16                   Second Amendment to Lease dated February 1, 1995
                        between the Company and Menlo Oaks Partners, L.P.,
                        which is incorporated by reference to Exhibit 10.2 of
                        the Company's Quarterly Report on Form 10-Q for the
                        quarter ended December 31, 1994 ("December 1994 Form
                        10-Q").

10.17                   Third Amendment to Lease dated February 1, 1995 between
                        the Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.23 of the
                        December 1994 Form 10-Q.

10.18                   Fourth Amendment to Lease dated May 31, 1995 between
                        the Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.27 of the
                        Company's Quarterly Report on Form 10-Q for the quarter
                        ended June 30, 1995 10-Q ("June 1995 Form 10-Q").

10.19                   Fifth Amendment to Lease dated June 13, 1995 between
                        the Company and Menlo Oaks Partners, L.P., which is
                        incorporated by reference to Exhibit 10.28 of the June
                        1995 Form 10-Q.


                                          21
<PAGE>

10.20                   Network General Corporation 1989 Stock Option Plan, as
                        amended August 8, 1997, and related documentation which
                        is incorporated by reference to Exhibit 99.1 of the
                        Company's Registration Statement on Form S-8 
                        (Registration No. 333-34955) (the "1997 S-8").

10.21                   Network General Corporation 1989 Employee Stock Option
                        Plan, as amended August 9, 1996, and related
                        documentation which is incorporated by reference to
                        Exhibit 10.18 of the September 1996 Form 10-Q.

10.22                   Employment Agreement dated August 19, 1995 between the
                        Company and Michael Kremer, which is incorporated by
                        reference to Exhibit 10.22 of the Company's Annual
                        Report on Form 10-K for the year ended March 31, 1996.

10.23                   Lease dated July 3, 1996, between the Company and
                        Campbell Avenue Associates, which is incorporated by
                        reference to Exhibit 10.21 to the Company's Quarterly
                        Report on Form 10-Q for the quarter ended June 30,
                        1996.

10.24                   Secured Loan Agreement dated October 29, 1996 between
                        the Company and John Richard Stringer, which is
                        incorporated by reference to Exhibit 10.21 of the
                        September 1996 Form 10-Q.

10.25                   Sixth Amendment to Lease dated November 29, 1996
                        between the Company and Menlo Oaks Partners, L.P.,
                        which is incorporated by reference to Exhibit 10.22 of
                        the Company's Quarterly Report on Form 10-Q for the
                        quarter ended December 31, 1996.

10.26                   Confidential Retirement Agreement and General Release
                        of Claims dated as of December 10, 1996 by and between
                        the Company and Richard H. Lewis, which is incorporated
                        by reference to Exhibit 10.26 of the Company's Annual
                        Report on Form 10-K for the year ended March 31, 1997
                        ("1997 Form 10-K").

10.27                   Confidential Resignation Agreement and General Release
                        of Claims dated as of January 10, 1997 by and between
                        the Company and Michael H. Kremer, which is
                        incorporated by reference to Exhibit 10.27 of the 1997
                        Form 10-K.

10.28                   Agreement made as of April 1, 1997 between the Company
                        and David M. Carver, which is incorporated by reference
                        to Exhibit 10.28 of the 1997 Form 10-K.

10.29                   Agreement made as of April 1, 1997 between the Company
                        and John R. Stringer, which is incorporated by
                        reference to Exhibit 10.29 of the 1997 Form 10-K.

10.30                   Cinco Networks, Inc. 1997 Stock Option Plan and 
                        related documentation, which are incorporated by 
                        reference to Exhibit 99.3 of the 1997 S-8.

27.0                    Financial Data Schedule




2) Form 8-K
A Form 8-K was filed on August 20, 1997 for the acquisition by Network General
Corporation of all the outstanding capital stock of Cinco Networks, Inc.


                                          22
<PAGE>

A Form 8-K was filed on October 21, 1997 for the announcement that Network 
General Corporation executed an Agreement and Plan of Reorganization with 
McAfee Associates, Inc.  (See Note 5-Subsequent Event of Notes to 
Consolidated Financial Statements (Unaudited)).

                                          23
<PAGE>

                                      SIGNATURES


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


                                  NETWORK GENERAL CORPORATION
                                         (Registrant)



Date:  October 29, 1997           by  /s/ JAMES T. RICHARDSON
       ----------------             --------------------------

                                  James T. Richardson
                                  Senior Vice President and
                                  Chief Financial Officer
                                  (Principal Financial Officer)

Date:  October 29, 1997           by  /s/ MICHAEL M. CULLY
       ----------------             --------------------------

                                  Michael M. Cully
                                  Vice President and Controller
                                  (Principal Accounting Officer)


                                          24



<PAGE>
                                                            EXHIBIT 2.1



                AGREEMENT AND PLAN OF REORGANIZATION
                                  
                            BY AND AMONG
                                  
                       MCAFEE ASSOCIATES, INC.
                                  
                      MYSTERY ACQUISITION CORP.
                                  
                                 AND
                                  
                     NETWORK GENERAL CORPORATION
                                  
                                  
                                  
                    DATED AS OF OCTOBER 13, 1997
                                   


<PAGE>

                          TABLE OF CONTENTS

                                                                PAGE
                                                                ----
ARTICLE I THE MERGER . . . . . . . . . . . . . . . . . . . . . . . 2
     1.1  The Merger . . . . . . . . . . . . . . . . . . . . . . . 2
     1.2  Effective Time; Closing. . . . . . . . . . . . . . . . . 2
     1.3  Effect of the Merger . . . . . . . . . . . . . . . . . . 2
     1.4  Certificate of Incorporation; Bylaws . . . . . . . . . . 3
     1.5  Directors and Officers . . . . . . . . . . . . . . . . . 3
     1.6  Effect on Capital Stock. . . . . . . . . . . . . . . . . 3
     1.7  Surrender of Certificates. . . . . . . . . . . . . . . . 5
     1.8  No Further Ownership Rights in Company Common Stock. . . 6
     1.9  Lost, Stolen or Destroyed Certificates . . . . . . . . . 7
     1.10 Tax and Accounting Consequences. . . . . . . . . . . . . 7
     1.11 Taking of Necessary Action; Further Action . . . . . . . 7

ARTICLE II REPRESENTATIONS AND WARRANTIES OF COMPANY . . . . . . . 7
     2.1  Organization of Company. . . . . . . . . . . . . . . . . 8
     2.2  Company Capital Structure. . . . . . . . . . . . . . . . 8
     2.3  Obligations With Respect to Capital Stock. . . . . . . . 9
     2.4  Authority. . . . . . . . . . . . . . . . . . . . . . . . 9
     2.5  SEC Filings; Company Financial Statements. . . . . . . .11
     2.6  Absence of Certain Changes or Events . . . . . . . . . .12
     2.7  Tax. . . . . . . . . . . . . . . . . . . . . . . . . . .13
     2.8  Title to Properties; Absence of Liens and Encumbrances .14
     2.9  Intellectual Property. . . . . . . . . . . . . . . . . .15
     2.10 Compliance; Permits; Restrictions. . . . . . . . . . . .18
     2.11 Litigation . . . . . . . . . . . . . . . . . . . . . . .19
     2.12 Brokers' and Finders' Fees . . . . . . . . . . . . . . .19
     2.13 Employment Matters . . . . . . . . . . . . . . . . . . .19
     2.14 Environmental Matters. . . . . . . . . . . . . . . . . .24
     2.15 Agreements, Contracts and Commitments. . . . . . . . . .25
     2.16 Pooling of Interests . . . . . . . . . . . . . . . . . .26
     2.17 Certain Payments . . . . . . . . . . . . . . . . . . . .26
     2.18 Registration Statement; Joint Proxy 
          Statement/Prospectus . . . . . . . . . . . . . . . . . .26
     2.19 Board Approval . . . . . . . . . . . . . . . . . . . . .27
     2.20 Fairness Opinion . . . . . . . . . . . . . . . . . . . .27
     2.21 Section 203 of the Delaware General Corporation Law 
          Not Applicable; Company Rights Plan. . . . . . . . . . .27
     2.22 Customs. . . . . . . . . . . . . . . . . . . . . . . . .28

                               -i-
<PAGE>

                          TABLE OF CONTENTS
                             (CONTINUED)
                                                                PAGE
                                                                ----
ARTICLE III REPRESENTATIONS AND WARRANTIES OF PARENT AND 
     MERGER SUB. . . . . . . . . . . . . . . . . . . . . . . . . .28
     3.1  Organization of Parent . . . . . . . . . . . . . . . . .28
     3.2  Parent and Merger Sub Capital Structure. . . . . . . . .29
     3.3  Obligations With Respect to Capital Stock. . . . . . . .29
     3.4  Authority. . . . . . . . . . . . . . . . . . . . . . . .30
     3.5  SEC Filings; Parent Financial Statements . . . . . . . .31
     3.6  Absence of Certain Changes or Events . . . . . . . . . .32
     3.7  Tax. . . . . . . . . . . . . . . . . . . . . . . . . . .33
     3.8  Title to Properties; Absence of Liens and Encumbrances .33
     3.9  Intellectual Property. . . . . . . . . . . . . . . . . .33
     3.10 Compliance; Permits; Restrictions. . . . . . . . . . . .35
     3.11 Litigation . . . . . . . . . . . . . . . . . . . . . . .36
     3.12 Brokers' and Finders' Fees . . . . . . . . . . . . . . .36
     3.13 Statements; Joint Proxy Statement/Prospectus . . . . . .36
     3.14 Valid Issuance . . . . . . . . . . . . . . . . . . . . .37
     3.15 No Ownership of Company Common Stock . . . . . . . . . .37
     3.16 Pooling of Interests . . . . . . . . . . . . . . . . . .37
     3.17 Board Approval . . . . . . . . . . . . . . . . . . . . .37
     3.18 Fairness Opinion . . . . . . . . . . . . . . . . . . . .37

ARTICLE IV CONDUCT PRIOR TO THE EFFECTIVE TIME . . . . . . . . . .37
     4.1  Conduct of Business by Company . . . . . . . . . . . . .37
     4.2  Conduct of Business by Parent. . . . . . . . . . . . . .40

ARTICLE V ADDITIONAL AGREEMENTS. . . . . . . . . . . . . . . . . .41
     5.1  Joint Proxy Statement/Prospectus; Registration 
          Statement; Other Filings; Board Recommendations. . . . .41
     5.2  Meetings of Stockholders . . . . . . . . . . . . . . . .43
     5.3  Confidentiality; Access to Information . . . . . . . . .43
     5.4  No Solicitation. . . . . . . . . . . . . . . . . . . . .44
     5.5  Public Disclosure. . . . . . . . . . . . . . . . . . . .47
     5.6  Reasonable Efforts; Notification . . . . . . . . . . . .48
     5.7  Third Party Consents . . . . . . . . . . . . . . . . . .49
     5.8  Stock Options and Employee Benefits. . . . . . . . . . .49
     5.9  Form S-8 . . . . . . . . . . . . . . . . . . . . . . . .50
     5.10 Indemnification. . . . . . . . . . . . . . . . . . . . .50

                               -ii-
<PAGE>

                          TABLE OF CONTENTS
                             (CONTINUED)

                                                                PAGE
                                                                ----
     5.11 Nasdaq Listing . . . . . . . . . . . . . . . . . . . . .51
     5.12 Affiliate Agreements . . . . . . . . . . . . . . . . . .51
     5.13 Regulatory Filings; Reasonable Efforts . . . . . . . . .51
     5.14 Board of Directors of Parent Following the Merger. . . .52

ARTICLE VI CONDITIONS TO THE MERGER. . . . . . . . . . . . . . . .52
     6.1  Conditions to Obligations of Each Party to Effect the
          Merger . . . . . . . . . . . . . . . . . . . . . . . . .52
     6.2  Additional Conditions to Obligations of Company. . . . .53
     6.3  Additional Conditions to the Obligations of Parent and
          Merger Sub . . . . . . . . . . . . . . . . . . . . . . .54

ARTICLE VII TERMINATION, AMENDMENT AND WAIVER. . . . . . . . . . .55
     7.1  Termination. . . . . . . . . . . . . . . . . . . . . . .55
     7.2  Notice of Termination; Effect of Termination . . . . . .57
     7.3  Fees and Expenses. . . . . . . . . . . . . . . . . . . .58
     7.4  Amendment. . . . . . . . . . . . . . . . . . . . . . . .60
     7.5  Extension; Waiver. . . . . . . . . . . . . . . . . . . .60
ARTICLE VIII GENERAL PROVISIONS. . . . . . . . . . . . . . . . . .60
     8.1  Non-Survival of Representations and Warranties . . . . .60
     8.2  Notices. . . . . . . . . . . . . . . . . . . . . . . . .60
     8.3  Interpretation; Knowledge. . . . . . . . . . . . . . . .62
     8.4  Counterparts . . . . . . . . . . . . . . . . . . . . . .62
     8.5  Entire Agreement; Third Party Beneficiaries. . . . . . .62
     8.6  Severability . . . . . . . . . . . . . . . . . . . . . .63
     8.7  Other Remedies; Specific Performance . . . . . . . . . .63
     8.8  Governing Law. . . . . . . . . . . . . . . . . . . . . .63
     8.9  Rules of Construction. . . . . . . . . . . . . . . . . .63
     8.10 Assignment . . . . . . . . . . . . . . . . . . . . . . .64
     8.11 Waiver of Jury Trial . . . . . . . . . . . . . . . . . .64

                               -iii-
<PAGE>


                         INDEX OF EXHIBITS
                         -----------------

Exhibit A-1         Form of Company Voting Agreement

Exhibit A-2         Form of Parent Voting Agreement

Exhibit B-1         Form of Company Affiliate Agreement

Exhibit B-2         Form of Parent Affiliate Agreement





                               -iv-

<PAGE>

                AGREEMENT AND PLAN OF REORGANIZATION


     This AGREEMENT AND PLAN OF REORGANIZATION is made and entered into as of 
October 13, 1997, among McAfee Associates, Inc., a Delaware corporation 
("PARENT"), Mystery Acquisition Corp., a Delaware corporation and a 
wholly-owned subsidiary of Parent ("MERGER SUB"), and Network General 
Corporation, a Delaware corporation ("COMPANY").

                              RECITALS

     A.   Upon the terms and subject to the conditions of this Agreement (as 
defined in Section 1.2 below) and in accordance with the Delaware General 
Corporation Law ("DELAWARE LAW"), Parent and Company intend to enter into a 
business combination transaction.

     B.   The Boards of Directors of Company and Parent (i) have determined 
that the Merger (as defined in Section 1.1) is consistent with and in 
furtherance of their respective long-term business strategies and fair to, 
and in the best interests of, their respective stockholders, (ii) have 
approved this Agreement, the Merger and the other transactions contemplated 
by this Agreement and (iii) have, in the case of Company, subject to the 
provisions of this Agreement, determined to recommend that the stockholders 
of Company adopt and approve this Agreement and approve the Merger and, in 
the case of Parent, subject to the provisions of this Agreement, determined 
to recommend that the stockholders of Parent approve the issuance of shares 
of Parent Common Stock (as defined in Section 1.6(a)) pursuant to the Merger.

     C.   The Board of Directors of Merger Sub has approved this Agreement, 
the Merger and the other transactions contemplated by this Agreement.

     D.   Concurrently with the execution of this Agreement, and as a 
condition and inducement to Parent's and Company's respective willingness to 
enter into this Agreement, certain stockholders of Company are entering into 
Voting Agreements in substantially the form attached hereto as EXHIBIT A-1 
(the "COMPANY VOTING AGREEMENTS"), and certain stockholders of Parent are 
entering into Voting Agreements in substantially the form attached hereto as 
EXHIBIT A-2 (the "PARENT VOTING AGREEMENTS"). 

     E.   The parties intend, by executing this Agreement, to adopt a plan of 
reorganization within the meaning of Section 368 of the Internal Revenue Code 
of 1986, as amended (the "CODE").

<PAGE>

     F.   It is also intended by the parties hereto that the Merger shall 
qualify for accounting treatment as a pooling of interests.

     NOW, THEREFORE, in consideration of the covenants, promises and 
representations set forth herein, and for other good and valuable 
consideration, the receipt and sufficiency of which are hereby acknowledged, 
the parties agree as follows:

                              ARTICLE I
                             THE MERGER

     1.1  THE MERGER.  At the Effective Time (as defined in Section 1.2) and 
subject to and upon the terms and conditions of this Agreement and the 
applicable provisions of Delaware Law, Merger Sub shall be merged with and 
into Company (the "MERGER"), the separate corporate existence of Merger Sub 
shall cease and Company shall continue as the surviving corporation.  Company 
as the surviving corporation after the Merger is hereinafter sometimes 
referred to as the "SURVIVING CORPORATION."

     1.2  EFFECTIVE TIME; CLOSING.  Subject to the provisions of this 
Agreement, the parties hereto shall cause the Merger to be consummated by 
filing a Certificate of Merger with the Secretary of State of the State of 
Delaware in accordance with the relevant provisions of Delaware Law (the 
"CERTIFICATE OF MERGER") (the time of such filing (or such later time as may 
be agreed in writing by Company and Parent and specified in the Certificate 
of Merger) being the "EFFECTIVE TIME") as soon as practicable on or after the 
Closing Date (as herein defined).  The closing of the Merger (the "CLOSING") 
shall take place at the offices of Wilson Sonsini Goodrich & Rosati, 
Professional Corporation, at a time and date to be specified by the parties, 
which shall be no later than the second business day after the satisfaction 
or waiver of the conditions set forth in Article VI, or at such other time, 
date and location as the parties hereto agree in writing (the "CLOSING DATE").

     1.3  EFFECT OF THE MERGER.  At the Effective Time, the effect of the 
Merger shall be as provided in this Agreement and the applicable provisions 
of Delaware Law.  Without limiting the generality of the foregoing, and 
subject thereto, at the Effective Time all the property, rights, privileges, 
powers and franchises of Company and Merger Sub shall vest in the Surviving 
Corporation, and all debts, liabilities and duties of Company and Merger Sub 
shall become the debts, liabilities and duties of the Surviving Corporation.

                                    -2-
<PAGE>

     1.4  CERTIFICATE OF INCORPORATION; BYLAWS.

          (a)  At the Effective Time, the Certificate of Incorporation of 
Merger Sub, as in effect immediately prior to the Effective Time, shall be 
the Certificate of Incorporation of the Surviving Corporation until 
thereafter amended as provided by law and such Certificate of Incorporation 
of the Surviving Corporation; PROVIDED, HOWEVER, that at the Effective Time 
the Certificate of Incorporation of the Surviving Corporation shall be 
amended so that the name of the Surviving Corporation shall be "Network 
General Corporation."

          (b)  The Bylaws of Merger Sub, as in effect immediately prior to 
the Effective Time, shall be, at the Effective Time, the Bylaws of the 
Surviving Corporation until thereafter amended.

     1.5  DIRECTORS AND OFFICERS.  The directors of Company immediately prior 
to the Effective Time shall continue as directors of the Surviving 
Corporation (together with such additional directors as may be elected by 
Parent effective as of or after the Effective Time).  For transition 
purposes, Parent intends that such directors shall continue to serve as 
directors of the Surviving Corporation for 180 days or more following the 
Effective Time.  The initial officers of the Surviving Corporation shall be 
the officers of Merger Sub immediately prior to the Effective Time.

     1.6  EFFECT ON CAPITAL STOCK.  At the Effective Time, by virtue of the 
Merger and without any action on the part of Merger Sub, Company or the 
holders of any of the following securities:

          (a)  CONVERSION OF COMPANY COMMON STOCK.  Each share of Common 
Stock, $0.01 par value per share, of Company  (including, with respect to 
each such share of Company Common Stock, the associated Rights (as defined in 
that certain Rights Agreement (the "COMPANY RIGHTS PLAN") dated as of June 
26, 1992,  between Company and Chemical Trust Company of California, as 
Rights Agent, as amended))(the "COMPANY COMMON STOCK") issued and outstanding 
immediately prior to the Effective Time, other than any shares of Company 
Common Stock to be canceled pursuant to Section 1.6(b),  will be canceled and 
extinguished and automatically converted (subject to Sections 1.6(e) and (f)) 
into the right to receive 0.4167 (the "EXCHANGE RATIO") shares of Common 
Stock of Parent (the "PARENT COMMON STOCK") upon surrender of the certificate 
representing such share of Company Common Stock in the manner provided in 
Section 1.7 (or in the case of a lost, stolen or destroyed certificate, upon 
delivery of an affidavit (and bond, if required) in the manner provided in 
Section 1.9).

                                    -3-
<PAGE>

          (b)  CANCELLATION OF PARENT-OWNED STOCK.  Each share of Company 
Common Stock held by Company or owned by Merger Sub, Parent or any direct or 
indirect wholly owned subsidiary of Company or of Parent immediately prior to 
the Effective Time shall be canceled and extinguished without any conversion 
thereof.

          (c)  STOCK OPTIONS; EMPLOYEE STOCK PURCHASE PLANS.  At the 
Effective Time, all options to purchase Company Common Stock then outstanding 
under Company's 1989 Stock Option Plan (the "ISO PLAN"), Company's 1989 
Outside Directors Stock Option Plan (the "DIRECTORS' PLAN"), the Cinco 
Networks, Inc. 1997 Stock Option Plan (the "CINCO PLAN"), and options granted 
by ProTools, Inc. and assumed by Company (the "PROTOOLS OPTIONS" and together 
with the ISO Plan, the Directors' Plan and the Cinco Plan, the "COMPANY STOCK 
OPTION PLANS") shall be assumed by Parent in accordance with Section 5.8 
hereof.  Rights outstanding under Company's 1989 Employee Stock Purchase Plan 
(the "ESPP") shall be treated as set forth in Section 5.8. 

          (d)  CAPITAL STOCK OF MERGER SUB.  Each share of Common Stock, 
$0.001 par value per share, of Merger Sub (the "MERGER SUB COMMON STOCK") 
issued and outstanding immediately prior to the Effective Time shall be 
converted into one validly issued, fully paid and nonassessable share of 
Common Stock, $0.01 par value per share, of the Surviving Corporation.  Each 
certificate evidencing ownership of shares of Merger Sub Common Stock shall 
evidence ownership of such shares of capital stock of the Surviving 
Corporation.

          (e)  ADJUSTMENTS TO EXCHANGE RATIO.  The Exchange Ratio shall be 
adjusted to reflect appropriately the effect of any stock split, reverse 
stock split, stock dividend (including any dividend or distribution of 
securities convertible into Parent Common Stock or Company Common Stock), 
reorganization, recapitalization, reclassification or other like change with 
respect to Parent Common Stock or Company Common Stock occurring on or after 
the date hereof and prior to the Effective Time.

          (f)  FRACTIONAL SHARES.  No fraction of a share of Parent Common 
Stock will be issued by virtue of the Merger, but in lieu thereof each holder 
of shares of Company Common Stock who would otherwise be entitled to a 
fraction of a share of Parent Common Stock (after aggregating all fractional 
shares of Parent Common Stock that otherwise would be received by such 
holder) shall receive from Parent an amount of cash (rounded to the nearest 
whole cent) equal to the product of (i) such fraction, multiplied by (ii) the 
average closing price of one share of Parent Common Stock for the five (5) 
most recent days that Parent Common Stock has traded ending on the trading 
day immediately prior to the Effective Time, as reported on the Nasdaq 
National Market System ("NASDAQ").

                                    -4-
<PAGE>

     1.7  SURRENDER OF CERTIFICATES.

          (a)  EXCHANGE AGENT.  Parent shall select a bank or trust company 
reasonably acceptable to Company to act as the exchange agent (the "EXCHANGE 
AGENT") in the Merger. 

          (b)  PARENT TO PROVIDE COMMON STOCK.  Promptly after the Effective 
Time, Parent shall make available to the Exchange Agent for exchange in 
accordance with this Article I, the shares of Parent Common Stock issuable 
pursuant to Section 1.6 in exchange for outstanding shares of Company Common 
Stock, and cash in an amount sufficient for payment in lieu of fractional 
shares pursuant to Section 1.6(f) and any dividends or distributions to which 
holders of shares of Company Common Stock may be entitled pursuant to Section 
1.7(d).

          (c)  EXCHANGE PROCEDURES.  As soon as practicable after the 
Effective Time, and in no event later than five (5) business days thereafter, 
Parent shall cause the Exchange Agent to mail to each holder of record (as of 
the Effective Time) of a certificate or certificates (the "CERTIFICATES"), 
which immediately prior to the Effective Time represented outstanding shares 
of Company Common Stock whose shares were converted into shares of Parent 
Common Stock pursuant to Section 1.6, cash in lieu of any fractional shares 
pursuant to Section 1.6(f) and any dividends or other distributions pursuant 
to Section 1.7(d), (i) a letter of transmittal in customary form (which shall 
specify that delivery shall be effected, and risk of loss and title to the 
Certificates shall pass, only upon delivery of the Certificates to the 
Exchange Agent and shall contain such other provisions as Parent may 
reasonably specify) and (ii) instructions for use in effecting the surrender 
of the Certificates in exchange for certificates representing shares of 
Parent Common Stock, cash in lieu of any fractional shares pursuant to 
Section 1.6(f) and any dividends or other distributions pursuant to Section 
1.7(d). Upon surrender of Certificates for cancellation to the Exchange Agent 
or to such other agent or agents as may be appointed by Parent, together with 
such letter of transmittal, duly completed and validly executed in accordance 
with the instructions thereto, the holders of such Certificates shall be 
entitled to receive in exchange therefor certificates representing the number 
of whole shares of Parent Common Stock into which their shares of Company 
Common Stock were converted at the Effective Time, payment in lieu of 
fractional shares which such holders have the right to receive pursuant to 
Section 1.6(f) and any dividends or distributions payable pursuant to Section 
1.7(d), and the Certificates so surrendered shall forthwith be canceled.  
Until so surrendered, outstanding Certificates will be deemed from and after 
the Effective Time, for all corporate purposes, subject to Section 1.7(d) as 
to the payment of dividends, to evidence only the ownership of the number of 
full shares of Parent Common Stock into which such shares of Company Common 
Stock shall have been so converted and 

                                    -5-
<PAGE>

the right to receive an amount in cash in lieu of the issuance of any 
fractional shares in accordance with Section 1.6(f) and any dividends or 
distributions payable pursuant to Section 1.7(d).

          (d)  DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES. No dividends 
or other distributions declared or made after the date of this Agreement with 
respect to Parent Common Stock with a record date after the Effective Time 
will be paid to the holders of any unsurrendered Certificates with respect to 
the shares of Parent Common Stock represented thereby until the holders of 
record of such Certificates shall surrender such Certificates. Subject to 
applicable law, following surrender of any such Certificates, the Exchange 
Agent shall deliver to the record holders thereof, without interest, 
certificates representing whole shares of Parent Common Stock issued in 
exchange therefor along with payment in lieu of fractional shares pursuant to 
Section 1.6(f) hereof and the amount of any such dividends or other 
distributions with a record date after the Effective Time payable with 
respect to such whole shares of Parent Common Stock.

          (e)  TRANSFERS OF OWNERSHIP.  If certificates representing shares 
of Parent Common Stock are to be issued in a name other than that in which 
the Certificates surrendered in exchange therefor are registered, it will be 
a condition of the issuance thereof that the Certificates so surrendered will 
be properly endorsed and otherwise in proper form for transfer and that the 
persons requesting such exchange will have paid to Parent or any agent 
designated by it any transfer or other taxes required by reason of the 
issuance of certificates representing shares of Parent Common Stock in any 
name other than that of the registered holder of the Certificates 
surrendered, or established to the satisfaction of Parent or any agent 
designated by it that such tax has been paid or is not payable.

          (f)  NO LIABILITY.  Notwithstanding anything to the contrary in 
this Section 1.7, neither the Exchange Agent, Parent, the Surviving 
Corporation nor any party hereto shall be liable to a holder of shares of 
Parent Common Stock or Company Common Stock for any amount properly paid to a 
public official pursuant to any applicable abandoned property, escheat or 
similar law.

     1.8  NO FURTHER OWNERSHIP RIGHTS IN COMPANY COMMON STOCK. All shares of 
Parent Common Stock issued in accordance with the terms hereof (including any 
cash paid in respect thereof pursuant to Section 1.6(f) and 1.7(d)) shall be 
deemed to have been issued in full satisfaction of all rights pertaining to 
such shares of Company Common Stock, and there shall be no further 
registration of transfers on the records of the Surviving Corporation of 
shares of Company Common Stock which were outstanding immediately prior to 
the Effective Time.  If after the 

                                    -6-
<PAGE>

Effective Time Certificates are presented to the Surviving Corporation for 
any reason, they shall be canceled and exchanged as provided in this Article 
I.

     1.9  LOST, STOLEN OR DESTROYED CERTIFICATES.  In the event any 
Certificates shall have been lost, stolen or destroyed, the Exchange Agent 
shall issue in exchange for such lost, stolen or destroyed Certificates, upon 
the making of an affidavit of that fact by the holder thereof, certificates 
representing the shares of Parent Common Stock into which the shares of 
Company Common Stock represented by such Certificates were converted pursuant 
to Section 1.6, cash for fractional shares, if any, as may be required 
pursuant to Section 1.6(f) and any dividends or distributions payable 
pursuant to Section 1.7(d); PROVIDED, HOWEVER, that Parent may, in its 
discretion and as a condition precedent to the issuance of such certificates 
representing shares of Parent Common Stock, cash and other distributions, 
require the owner of such lost, stolen or destroyed Certificates to deliver a 
bond in such sum as it may reasonably direct as indemnity against any claim 
that may be made against Parent, the Surviving Corporation or the Exchange 
Agent with respect to the Certificates alleged to have been lost, stolen or 
destroyed.

     1.10 TAX AND ACCOUNTING CONSEQUENCES.  

          (a)  It is intended by the parties hereto that the Merger shall 
constitute a reorganization within the meaning of Section 368 of the Code, 
and each of the parties hereto will use its commercially reasonable efforts 
to cause the Merger to be treated as such a reorganization.  The parties 
hereto adopt this Agreement as a "plan of reorganization" within the meaning 
of Sections 1.368-2(g) and 1.368-3(a) of the United States Income Tax 
Regulations.

          (b)  It is intended by the parties hereto that the Merger shall 
qualify for accounting treatment as a pooling of interests.

     1.11 TAKING OF NECESSARY ACTION; FURTHER ACTION.  If, at any time after 
the Effective Time, any further action is necessary or desirable to carry out 
the purposes of this Agreement and to vest the Surviving Corporation with 
full right, title and possession to all assets, property, rights, privileges, 
powers and franchises of Company and Merger Sub, the officers and directors 
of Company and Merger Sub will take all such lawful and necessary action.  
Parent shall cause Merger Sub to perform all of its obligations relating to 
this Agreement and the transactions contemplated thereby.

                                    -7-
<PAGE>

                             ARTICLE II
              REPRESENTATIONS AND WARRANTIES OF COMPANY

     Company represents and warrants to Parent and Merger Sub, subject to the 
exceptions specifically disclosed in writing in the disclosure letter and 
referencing a specific representation supplied by Company to Parent dated as 
of the date hereof and certified by a duly authorized officer of Company (the 
"COMPANY SCHEDULES"), as follows: 

     2.1  ORGANIZATION OF COMPANY.  

          (a)  Company and each of its material subsidiaries (i) is a 
corporation or other legal entity duly organized, validly existing and in 
good standing under the laws of the jurisdiction in which it is organized; 
(ii) has the corporate or other power and authority to own, lease and operate 
its assets and property and to carry on its business as now being conducted; 
and (iii), except as would not be material to Company, is duly qualified or 
licensed to do business in each jurisdiction where the character of the 
properties owned, leased or operated by it or the nature of its activities 
makes such qualification or licensing necessary.

          (b)  Company has delivered to Parent a true and complete list of 
all of Company's subsidiaries as of the date of this Agreement, indicating 
the jurisdiction of organization of each subsidiary and Company's equity 
interest therein.  

          (c)  Company has delivered or made available to Parent a true and 
correct copy of the Certificate of Incorporation and Bylaws of Company and 
similar governing instruments of each of its material subsidiaries, each as 
amended to date, and each such instrument is in full force and effect.  
Neither Company nor any of its material subsidiaries is in violation of any 
of the provisions of its Certificate of Incorporation or Bylaws or equivalent 
governing instruments.  

     2.2  COMPANY CAPITAL STRUCTURE.  The authorized capital stock of Company 
consists of 100,000,000 shares of Common Stock, $0.01 par value per share, of 
which there were 42,461,275 shares issued and outstanding as of October 10, 
1997 (excluding shares held in treasury of which there are none), and 
2,000,000 shares of Preferred Stock, $0.01 par value per share, of which no 
shares are issued or outstanding.  All outstanding shares of Company Common 
Stock are duly authorized, validly issued, fully paid and nonassessable and 
are not subject to preemptive rights created by statute, the Certificate of 
Incorporation or Bylaws of Company or any agreement or document to which 
Company is a party or by which it is bound.  As of October 10, 1997, Company 
had reserved an aggregate of 

                                    -8-
<PAGE>

11,300,548 shares of Company Common Stock, net of exercises, for issuance 
pursuant to the Company Stock Option Plans.  As of October 10, 1997, there 
were options outstanding to purchase an aggregate of 2,699,996 shares of 
Company Common Stock pursuant to the Company Stock Option Plans.  As of 
October 10, 1997, Company had reserved an aggregate of 2,000,000 shares of 
Company Common Stock for issuance pursuant to the ESPP.  All shares of 
Company Common Stock subject to issuance as aforesaid, upon issuance on the 
terms and conditions specified in the instruments pursuant to which they are 
issuable, would be duly authorized, validly issued, fully paid and 
nonassessable. The Company Schedules list each person who holds options to 
acquire shares of Company Common Stock of which the exercisability will be 
accelerated in any way by the transactions contemplated by this Agreement as 
well as the number of shares subject to such options and the extent of such 
acceleration.

     2.3  OBLIGATIONS WITH RESPECT TO CAPITAL STOCK.  Except as set forth in 
Section 2.2, there are no equity securities, partnership interests or similar 
ownership interests of any class of Company, or any securities exchangeable 
or convertible into or exercisable for such equity securities, partnership 
interests or similar ownership interests, issued, reserved for issuance or 
outstanding.  Except for securities Company owns free and clear of all claims 
and encumbrances, directly or indirectly through one or more subsidiaries, 
and except for shares of capital stock or other similar ownership interests 
of certain subsidiaries of Company that are owned by certain nominee equity 
holders as required by the applicable law of the jurisdiction of organization 
of such subsidiaries, as of the date of this Agreement, there are no equity 
securities, partnership interests or similar ownership interests of any class 
of any material subsidiary of Company, or any security exchangeable or 
convertible into or exercisable for such equity securities, partnership 
interests or similar ownership interests, issued, reserved for issuance or 
outstanding.  Except as set forth in Section 2.2, there are no options, 
warrants, equity securities, partnership interests or similar ownership 
interests, calls, rights (including preemptive rights), commitments or 
agreements of any character to which Company or any of its material 
subsidiaries is a party or by which it is bound obligating Company or any of 
its material subsidiaries to issue, deliver or sell, or cause to be issued, 
delivered or sold, or repurchase, redeem or otherwise acquire, or cause the 
repurchase, redemption or acquisition of, any shares of capital stock, 
partnership interests or similar ownership interests of Company or any of its 
material subsidiaries or obligating Company or any of its material 
subsidiaries to grant, extend, accelerate the vesting of or enter into any 
such option, warrant, equity security, call, right, commitment or agreement.  
As of the date of this Agreement, except as contemplated by this Agreement, 
the Company Voting Agreement and the Company Affiliate Agreement (as defined 
in Section 5.12), there are no registration rights and, to the knowledge of 
Company, there are no voting trusts, proxies or other agreements or 
understandings to which 

                                    -9-
<PAGE>

Company is a party or by which it is bound with respect to any equity 
security of any class of Company or with respect to any equity security, 
partnership interest or similar ownership interest of any class of any of its 
material subsidiaries.  Stockholders of Company will not be entitled to 
dissenters rights under applicable state law in connection with the Merger.

     2.4  AUTHORITY.

          (a)  Company has all requisite corporate power and authority to 
enter into this Agreement and to consummate the transactions contemplated 
hereby, subject only to the approval of the Merger and the approval and 
adoption of this Agreement by the stockholders of Company.  The execution and 
delivery of this Agreement and the consummation of the transactions 
contemplated hereby have been duly authorized by all necessary corporate 
action on the part of Company, subject only to the approval and adoption of 
this Agreement and the approval of the Merger by Company's stockholders and 
the filing of the Certificate of Merger pursuant to Delaware Law.  A vote of 
the holders of a majority of the outstanding shares of the Company Common 
Stock is sufficient for Company's stockholders to approve and adopt this 
Agreement and approve the Merger.  This Agreement has been duly executed and 
delivered by Company and, assuming the due authorization, execution and 
delivery by Parent and Merger Sub, constitutes a valid and binding obligation 
of Company, enforceable against Company in accordance with its terms, except 
as enforceability may be limited by bankruptcy and other similar laws and 
general principles of equity.  The execution and delivery of this Agreement 
by Company do not, and the performance of this Agreement by Company will not, 
(i) conflict with or violate the Certificate of Incorporation or Bylaws of 
Company or the equivalent organizational documents of any of its material 
subsidiaries, (ii) subject to obtaining the approval and adoption of this 
Agreement and the approval of the Merger by Company's stockholders as 
contemplated in Section 5.2 and compliance with the requirements set forth in 
Section 2.4(b) below, conflict with or violate any law, rule, regulation, 
order, judgment or decree applicable to Company or any of its material 
subsidiaries or by which Company or any of its material subsidiaries or any 
of their respective properties is bound or affected, or (iii) result in any 
material breach of or constitute a material default (or an event that with 
notice or lapse of time or both would become a material default) under, or 
materially impair Company's material rights or alter the material rights or 
material obligations of any third party under, or give to others any rights 
of termination, amendment, acceleration or cancellation of, or result in the 
creation of a material lien or encumbrance on any of the material properties 
or assets of Company or any of its subsidiaries pursuant to, any material 
note, bond, mortgage, indenture, contract, agreement, lease, license, permit, 
franchise or other instrument or obligation to which Company or any of its 
material subsidiaries is a party or by which Company or any of its material 
subsidiaries or its 

                                    -10-
<PAGE>

or any of their respective properties are bound or affected.  The Company 
Schedules list all consents, waivers and approvals under any of Company's or 
any of its material subsidiaries' agreements, contracts, licenses or leases 
required to be obtained in connection with the consummation of the 
transactions contemplated hereby, which, if individually or in the aggregate 
not obtained, would result in a material loss of benefits to Company, Parent 
or the Surviving Corporation as a result of the Merger.

          (b)  No consent, approval, order or authorization of, or 
registration, declaration or filing with any court, administrative agency or 
commission or other governmental authority or instrumentality, foreign or 
domestic ("GOVERNMENTAL ENTITY"), is required to be obtained or made by 
Company or any of its material subsidiaries in connection with the execution 
and delivery of this Agreement or the consummation of the Merger, except for 
(i) the filing of the Certificate of Merger with the Secretary of State of 
the State of Delaware, (ii) the filing of the Joint Proxy 
Statement/Prospectus (as defined in Section 2.18) with the Securities and 
Exchange Commission ("SEC") in accordance with the Securities Exchange Act of 
1934, as amended (the "EXCHANGE ACT"), (iii) such consents, approvals, 
orders, authorizations, registrations, declarations and filings as may be 
required under applicable federal, foreign and state securities (or related) 
laws and the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended 
(the "HSR ACT"), and the securities or antitrust laws of any foreign country, 
and (iv) such other consents, authorizations, filings, approvals and 
registrations which if not obtained or made would not be material to Company 
or have a material adverse effect on the ability of Company to consummate the 
Merger.

     2.5  SEC FILINGS; COMPANY FINANCIAL STATEMENTS.

          (a)  Company has filed all forms, reports and documents required to 
be filed by Company with the SEC since September 1, 1994 and has made 
available to Parent such forms, reports and documents in the form filed with 
the SEC.  All such required forms, reports and documents (including those 
that Company may file subsequent to the date hereof) are referred to herein 
as the "COMPANY SEC REPORTS."  As of their respective dates, the Company SEC 
Reports (i) were prepared in accordance with the requirements of the 
Securities Act of 1933, as amended (the "SECURITIES ACT"), or the Exchange 
Act, as the case may be, and the rules and regulations of the SEC thereunder 
applicable to such Company SEC Reports and (ii) did not at the time they were 
filed (or if amended or superseded by a filing prior to the date of this 
Agreement, then on the date of such filing) contain any untrue statement of a 
material fact or omit to state a material fact required to be stated 

                                    -11-
<PAGE>

therein or necessary in order to make the statements therein, in the light of 
the circumstances under which they were made, not misleading.  None of 
Company's subsidiaries is required to file any forms, reports or other 
documents with the SEC.

          (b)  Each of the consolidated financial statements (including, in 
each case, any related notes thereto) contained in the Company SEC Reports 
(the "COMPANY FINANCIALS"), including each Company SEC Report filed after the 
date hereof until the Closing, (i) complied as to form in all material 
respects with the published rules and regulations of the SEC with respect 
thereto, (ii) was prepared in accordance with United States generally 
accepted accounting principles ("GAAP") applied on a consistent basis 
throughout the periods involved (except as may be indicated in the notes 
thereto or, in the case of unaudited interim financial statements, as may be 
permitted by the SEC on Form 10-Q under the Exchange Act) and (iii) fairly 
presented the consolidated financial position of Company and its subsidiaries 
as at the respective dates thereof and the consolidated results of Company's 
operations and cash flows for the periods indicated, except that the 
unaudited interim financial statements may not contain footnotes and were or 
are subject to customary year-end adjustments which will not have a Material 
Adverse Effect (as defined in Section 8.3(c)) on Company.  The balance sheet 
of Company contained in Company SEC Reports as of June 30, 1997 is 
hereinafter referred to as the "COMPANY BALANCE SHEET."  Except as disclosed 
in the Company Financials, since the date of the Company Balance Sheet 
neither Company nor any of its subsidiaries has any liabilities required 
under GAAP to be set forth on a balance sheet (absolute, accrued, contingent 
or otherwise) which are, individually or in the aggregate, material to the 
business, results of operations or financial condition of Company and its 
subsidiaries taken as a whole, except for liabilities incurred since the date 
of the Company Balance Sheet in the ordinary course of business consistent 
with past practices.

     2.6  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Since the date of the 
Company Balance Sheet there has not been: (i) any Material Adverse Effect on 
Company, (ii) any declaration, setting aside or payment of any dividend on, 
or other distribution (whether in cash, stock or property) in respect of, any 
of Company's or any of its material subsidiaries' capital stock, or any 
purchase, redemption or other acquisition by Company of any of Company's 
capital stock or any other securities of Company or its material subsidiaries 
or any options, warrants, calls or rights to acquire any such shares or other 
securities except for repurchases from employees following their termination 
pursuant to the terms of their pre-existing stock option or purchase 
agreements, (iii) any split, combination or reclassification of any of 
Company's or any of its material subsidiaries' capital stock, (iv) any 
granting by Company or any of its subsidiaries of any increase in 
compensation or fringe benefits, except for normal increases of cash 
compensation in the ordinary course of business consistent with past 
practice, or any payment by Company or any of its 

                                    -12-
<PAGE>

subsidiaries of any bonus, except for bonuses made in the ordinary course of 
business consistent with past practice, or any granting by Company or any of 
its subsidiaries of any increase in severance or termination pay or any entry 
by Company or any of its subsidiaries into any currently effective 
employment, severance, termination or indemnification agreement or any 
agreement the benefits of which are contingent or the terms of which are 
materially altered upon the occurrence of a transaction involving Company of 
the nature contemplated hereby, (v) entry by Company or any of its 
subsidiaries into any licensing or other agreement with regard to the 
acquisition or disposition of any material Intellectual Property (as defined 
in Section 2.9) other than licenses in the ordinary course of business 
consistent with past practice or any amendment or consent with respect to any 
licensing agreement filed or required to be filed by Company with the SEC, 
(vi) any material change by Company in its accounting methods, principles or 
practices, except as required by concurrent changes in GAAP, or (vii) any 
material revaluation by Company of any of its assets, including, without 
limitation, writing down the value of capitalized inventory or writing off 
notes or accounts receivable other than in the ordinary course of business.

     2.7  TAXES.

          (a)  DEFINITION OF TAXES.  For the purposes of this Agreement, 
"TAX" or "TAXES" refers to any and all federal, state, local and foreign 
taxes, assessments and other governmental charges, duties, impositions and 
liabilities relating to taxes, 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.

          (b)  TAX RETURNS AND AUDITS.

                    (i)  Company and each of its subsidiaries have timely 
filed all federal, state, local and foreign returns, estimates, information 
statements and reports ("RETURNS") relating to Taxes required to be filed by 
Company and each of its subsidiaries with any Tax authority, except such 
Returns which are not material to Company, and have paid all Taxes shown to 
be due on such Returns.

                    (ii) Company and each of its material subsidiaries as of 
the Effective Time will have withheld with respect to its employees all 
federal and state income taxes, Taxes pursuant to the Federal Insurance 
Contribution Act ("FICA"), Taxes pursuant to the Federal Unemployment Tax Act 
("FUTA") and other Taxes required to be withheld.

                                    -13-

<PAGE>

                    (iii)     Neither Company nor any of its material 
subsidiaries has been delinquent in the payment of any Tax nor is there any 
Tax deficiency outstanding, proposed or assessed against Company or any of 
its material subsidiaries, nor has Company or any of its material 
subsidiaries executed any unexpired waiver of any statute of limitations on 
or extending the period for the assessment or collection of any Tax.

                    (iv) No audit or other examination of any Return of 
Company or any of its material subsidiaries by any Tax authority is presently 
in progress, nor has Company or any of its material subsidiaries been 
notified of any request for such an audit or other examination.

                    (v)  No adjustment relating to any Returns filed by 
Company or any of its material subsidiaries has been proposed in writing 
formally or informally by any Tax authority to Company or any of its material 
subsidiaries or any representative thereof.

                    (vi) Neither Company nor any of its subsidiaries has any 
liability for unpaid Taxes which has not been accrued for or reserved on the 
Company Balance Sheet, whether asserted or unasserted, contingent or 
otherwise, which is material to Company, other than any liability for unpaid 
Taxes that may have accrued since the date of the Company Balance Sheet in 
connection with the operation of the business of Company and its subsidiaries 
in the ordinary course.

                    (vii)     There is no contract, agreement, plan or 
arrangement to which Company is a party as of the date of this Agreement, 
including but not limited to the provisions of this Agreement, covering any 
employee or former employee of Company or any of its subsidiaries that, 
individually or collectively, could give rise to the payment of any amount 
that would not be deductible pursuant to Sections 280G, 404 or 162(m) of the 
Code.

                    (viii)    Neither Company nor any of its subsidiaries has 
filed any consent agreement under Section 341(f) of the Code or agreed to 
have Section 341(f)(2) of the Code apply to any disposition of a subsection 
(f) asset (as defined in Section 341(f)(4) of the Code) owned by Company.

                    (ix) Neither Company nor any of its material subsidiaries 
is party to or has any obligation under any tax-sharing, tax indemnity or tax 
allocation agreement or arrangement.

                    (x)  Except as may be required as a result of the Merger, 
Company and its material subsidiaries have not been and will not be required 
to 

                                    -14-
<PAGE>

include any adjustment in Taxable income for any Tax period (or portion 
thereof) pursuant to Section 481 or Section 263A of the Code or any 
comparable provision under state or foreign Tax laws as a result of 
transactions, events or accounting methods employed prior to the Closing.

                    (xi) None of Company's or its subsidiaries' assets are 
tax exempt use property within the meaning of Section 168(h) of the Code.

     2.8  TITLE TO PROPERTIES; ABSENCE OF LIENS AND ENCUMBRANCES.

          (a)  The Company Schedules list the real property interests owned 
by Company as of the date of this Agreement.  The Company Schedules list all 
real property leases to which Company is a party as of the date of this 
Agreement and which provide for the lease, in each case, of not less than 
10,000 square feet ("MATERIAL REAL PROPERTY LEASES"), and each amendment 
thereto that is in effect as of the date of this Agreement.  All such 
Material Real Property Leases are in full force and effect, are valid and 
effective in accordance with their respective terms, and there is not, under 
any of such leases, any existing default or event of default (or event which 
with notice or lapse of time, or both, would constitute a default) that would 
give rise to a claim in an amount greater than $100,000.

          (b)  Company has good and valid title to, or, in the case of leased 
properties and assets, valid leasehold interests in, all of its tangible 
properties and assets, real, personal and mixed, used or held for use in its 
business, free and clear of any liens, pledges, charges, claims, security 
interests or other encumbrances of any sort ("LIENS"), except as reflected in 
the Company Financials and except for liens for taxes not yet due and payable 
and such Liens or other imperfections of title and encumbrances, if any, 
which are not material in character, amount or extent, and which do not 
materially detract from the value, or materially interfere with the present 
use, of the property subject thereto or affected thereby.

     2.9  INTELLECTUAL PROPERTY.  For the purposes of this Agreement, the 
following terms have the following definitions:

          "INTELLECTUAL PROPERTY" shall mean any or all of the
          following and all rights in, arising out of, or
          associated therewith:  (i) all United States,
          international and foreign patents and applications
          therefor and all reissues, divisions, renewals,
          extensions, provisionals, continuations and
          continuations-in-part thereof; (ii) all inventions
          (whether patentable or not), invention disclosures,
          improvements, trade secrets, proprietary information,
          know how, technology, technical data and customer
          lists, and all documentation relating to any of the
          foregoing; 

                                    -15-
<PAGE>

          (iii) all copyrights, copyright registrations and applications 
          therefor, and all other rights corresponding thereto throughout 
          the world; (iv) all industrial designs and any registrations 
          and applications therefor throughout the world; (v) all
          trade names, logos, common law trademarks and service
          marks, trademark and service mark registrations and
          applications therefor throughout the world; (vi) all
          databases and data collections and all rights therein
          throughout the world; (vii) all moral and economic
          rights of authors and inventors, however denominated,
          throughout the world, and (viii) any similar or
          equivalent rights to any of the foregoing anywhere in
          the world.

          "COMPANY INTELLECTUAL PROPERTY" shall mean any
          Intellectual Property that is owned by, or exclusively
          licensed to, Company or any of its material
          subsidiaries.

          "REGISTERED INTELLECTUAL PROPERTY" means all United
          States, international and foreign: (i) patents and
          patent applications (including provisional
          applications); (ii) registered trademarks, applications
          to register trademarks, intent-to-use applications, or
          other registrations or applications related to
          trademarks; (iii) registered copyrights and
          applications for copyright registration; and (iv) any
          other Intellectual Property that is the subject of an
          application, certificate, filing, registration or other
          document issued, filed with, or recorded by any state,
          government or other public legal authority. 

          "COMPANY REGISTERED INTELLECTUAL PROPERTY" means all of
          the Registered Intellectual Property owned by, or filed
          in the name of, Company.

          (a)  No material Company Intellectual Property or product or 
service of Company is subject to any proceeding or outstanding decree, order, 
judgment, agreement, or stipulation restricting in any manner the use, 
transfer, or licensing thereof by Company, or which may affect the validity, 
use or enforceability of such Company Intellectual Property.

          (b)  Each material item of Company Registered Intellectual Property 
is valid and subsisting, all necessary registration, maintenance and renewal 
fees currently due in connection with such Registered Intellectual Property 
have been made and all necessary documents, recordations and certificates in 
connection with such Registered Intellectual Property have been filed with 
the relevant patent, copyright, trademark or other authorities in the United 
States or foreign jurisdictions, 

                                    -16-
<PAGE>

as the case may be, for the purposes of maintaining such Registered 
Intellectual Property.  

          (c)  Company owns and has good and exclusive title to, or has 
license (sufficient for the conduct of its business as currently conducted 
and as proposed to be conducted) to, each material item of Company 
Intellectual Property free and clear of any lien or encumbrance (excluding 
licenses and related restrictions); and Company is the exclusive owner of all 
trademarks and trade names used in connection with the operation or conduct 
of the business of Company, including the sale of any products or the 
provision of any services by Company.

          (d)  Company owns exclusively, and has good title to, all 
copyrighted works that are Company products or which Company otherwise 
expressly purports to own.

          (e)  To the extent that any material Intellectual Property has been 
developed or created by a third party for Company, Company has a written 
agreement with such third party with respect thereto and Company thereby 
either (i) has obtained ownership of, and is the exclusive owner of, or (ii) 
has obtained a license (sufficient for the conduct of its business as 
currently conducted and as proposed to be conducted) to all such third 
party's Intellectual Property in such Intellectual Property by operation of 
law or by valid assignment.

          (f)  Company has not transferred ownership of, or granted any 
exclusive license with respect to, any Intellectual Property that is or was 
material Company Intellectual Property, to any third party.

          (g)  The Company Schedules list all material contracts, licenses 
and agreements to which Company is a party (i) with respect to Company 
Intellectual Property licensed or transferred to any third party (other than 
end-user licenses in the ordinary course); or (ii) pursuant to which a third 
party has licensed or transferred any material Intellectual Property to 
Company. 
     
          (h)  All material contracts, licenses and agreements relating to 
the Company Intellectual Property are in full force and effect. The 
consummation of the transactions contemplated by this Agreement will neither 
violate nor result in the breach, modification, cancellation, termination, or 
suspension of such contracts, licenses and agreements.  Company is in 
material compliance with, and has not materially breached any term any of 
such contracts, licenses and agreements and, to the knowledge of Company, all 
other parties to such contracts, licenses and agreements are in compliance 
with, and have not materially breached any term of, such contracts, licenses 
and agreements. Following the Closing Date, the Surviving 

                                    -17-
<PAGE>

Corporation will be permitted to exercise all of Company's rights under such 
contracts, licenses and agreements to the same extent Company would have been 
able to had the transactions contemplated by this Agreement not occurred and 
without the payment of any additional amounts or consideration other than 
ongoing fees, royalties or payments which Company would otherwise be required 
to pay.

          (i)  The operation of the business of Company as such business 
currently is conducted, including Company's design, development, manufacture, 
marketing and sale of the products or services of Company (including with 
respect to products currently under development) has not, does not and will 
not infringe or misappropriate the Intellectual Property of any third party 
(provided that with respect to patent rights, such representation is limited 
to Company's knowledge) or, to its knowledge, constitute unfair competition 
or trade practices under the laws of any jurisdiction.

          (j)  Company has not received notice from any third party that the 
operation of the business of Company or any act, product or service of 
Company, infringes or misappropriates the Intellectual Property of any third 
party or constitutes unfair competition or trade practices under the laws of 
any jurisdiction.

          (k)  To the knowledge of Company, no Person has or is infringing or 
misappropriating any Company Intellectual Property.

          (l)  Company has taken reasonable steps to protect Company's rights 
in Company's confidential information and trade secrets that it wishes to 
protect or any trade secrets or confidential information of third parties 
provided to Company, and, without limiting the foregoing, Company has and 
enforces a policy requiring each employee and contractor to execute a 
proprietary information/confidentiality agreement substantially in the form 
provided to Parent and all current and former employees and contractors of 
Company have executed such an agreement, except where the failure to do so is 
not reasonably expected to be material to Company. 

     2.10 COMPLIANCE; PERMITS; RESTRICTIONS.

          (a)  Neither Company nor any of its subsidiaries is, in any 
material respect, in conflict with, or in default or in violation of (i) any 
law, rule, regulation, order, judgment or decree applicable to Company or any 
of its subsidiaries or by which Company or any of its subsidiaries or any of 
their respective properties is bound or affected, or (ii) any material note, 
bond, mortgage, indenture, contract, agreement, lease, license, permit, 
franchise or other instrument or obligation to which Company or any of its 
subsidiaries is a party or by which Company or any of its 

                                    -18-
<PAGE>

subsidiaries or its or any of their respective properties is bound or 
affected, except for conflicts, violations and defaults that (individually or 
in the aggregate) would not cause Company to lose any material benefit or 
incur any material liability. No investigation or review by any Governmental 
Entity is pending or, to Company's knowledge, has been threatened in a 
writing delivered to Company against Company or any of its subsidiaries, nor, 
to Company's knowledge, has any Governmental Entity indicated an intention to 
conduct an investigation of Company or any of its subsidiaries.  There is no 
material agreement, judgment, injunction, order or decree binding upon 
Company or any of its material subsidiaries which has or could reasonably be 
expected to have the effect of prohibiting or materially impairing any 
business practice of Company or any of its material subsidiaries, any 
acquisition of material property by Company or any of its subsidiaries or the 
conduct of business by Company as currently conducted.

          (b)  Company and its subsidiaries hold, to the extent legally 
required, all permits, licenses, variances, exemptions, orders and approvals 
from governmental authorities that are material to and required for the 
operation of the business of Company as currently conducted (collectively, 
the "COMPANY PERMITS").  Company and its subsidiaries are in compliance in 
all material respects with the terms of the Company Permits, except where the 
failure to obtain any Company Permits or to be in compliance with the terms 
of the Company Permits would not be material to Company.

     2.11 LITIGATION.  There is no action, suit, proceeding, claim, 
arbitration or investigation pending, and to Company's knowledge, no person 
has threatened in a writing delivered to Company to commence any action, 
suit, proceeding, claim, arbitration or investigation against Company or any 
of its subsidiaries which would be likely to be material to Company.  No 
Governmental Entity has at any time challenged or questioned in a writing 
delivered to Company the legal right of Company to design, manufacture, offer 
or sell any of its products in the present manner or style thereof.  

     2.12 BROKERS' AND FINDERS' FEES.  Except for fees payable to Hambrecht & 
Quist LLC pursuant to an engagement letter dated September 22, 1997, a copy 
of which has been provided to Parent, Company has not incurred, nor will it 
incur, directly or indirectly, any liability for brokerage or finders' fees 
or agents' commissions or any similar charges in connection with this 
Agreement or any transaction contemplated hereby.

                                    -19-
<PAGE>

     2.13 EMPLOYMENT MATTERS.

          (a)  DEFINITIONS.  With the exception of the definition of 
"Affiliate" set forth in Section 2.13(a)(i) below (which definition shall 
apply only to this Section 2.13), for purposes of this Agreement, the 
following terms shall have the meanings set forth below:

               (i)  "AFFILIATE" shall mean any other person or entity under 
common control with Company within the meaning of Section 414(b), (c), (m) or 
(o) of the Code and the regulations issued thereunder;

               (ii) "COMPANY EMPLOYEE PLAN" shall mean (x) all employee 
benefit plans (as defined in Section 3(3) of ERISA), (y) all bonus, stock 
option, stock purchase, incentive, deferred compensation, supplemental 
retirement, severance and other similar employee benefit plans, and (z) all 
unexpired severance agreements and arrangements, written or otherwise, for 
the benefit of, or relating to, any current or former employee of Company or 
any trade or business (whether or not incorporated) which is an Affiliate or 
any subsidiary of Company;

               (iii)     "COBRA" shall mean the Consolidated Omnibus Budget 
Reconciliation Act of 1985, as amended

               (iv) "DOL"  shall mean the Department of Labor;

               (v)  "EMPLOYEE" shall mean any current, former, or retired 
employee, officer, or director of Company or any Affiliate;

               (vi) "EMPLOYEE AGREEMENT" shall mean each management, 
employment, severance, consulting, relocation, repatriation, expatriation, 
visas, work permit or similar agreement or contract between Company or any 
Affiliate and any individual entitled to receive annual compensation from 
Company or any Affiliate with value equal to or greater than $75,000;

               (vii)     "ERISA" shall mean the Employee Retirement Income 
Security Act of 1974, as amended;

               (viii)    "FMLA" shall mean the Family Medical Leave Act of 
1993, as amended;

               (ix) "INTERNATIONAL EMPLOYEE PLAN"  shall mean each Company 
Employee Plan that has been adopted or maintained by Company, whether 
informally or formally, for the benefit of Employees outside the United 
States;

                                    -20-
<PAGE>


               (x)  "IRS" shall mean the Internal Revenue Service;

               (xi) "MULTIEMPLOYER PLAN" shall mean any "Pension Plan" (as 
defined below) which is a "multiemployer plan," as defined in Section 3(37) 
of ERISA;

               (xii) "PBGC" shall mean the Pension Benefit Guaranty 
Corporation; and 

               (xiii) "PENSION PLAN" shall mean each Company Employee Plan 
which is an "employee pension benefit plan," within the meaning of Section 
3(2) of ERISA.

          (b)  SCHEDULE.  The Company Schedules contain an accurate and 
complete list of each Company Employee Plan and each material Employee 
Agreement.  Company does not have any plan or commitment to establish any new 
Company Employee Plan, to modify any Company Employee Plan or Employee 
Agreement (except to the extent required by law or to conform any such 
Company Employee Plan or Employee Agreement to the requirements of any 
applicable law, in each case as previously disclosed to Parent in writing, or 
as required by this Agreement), or to enter into any Company Employee Plan or 
material Employee Agreement, nor does it have any intention or commitment to 
do any of the foregoing. 

          (c)  DOCUMENTS.  Company has provided to Parent: (i) correct and 
complete copies of each Company Employee Plan and each Employee Agreement 
including all amendments thereto; (ii) the most recent annual actuarial 
valuations, if any, prepared for each Company Employee Plan; (iii) the three 
(3) most recent annual reports (Form Series 5500 and all schedules and 
financial statements attached thereto), if any, required under ERISA or the 
Code in connection with each Company Employee Plan or related trust; (iv) if 
the Company Employee Plan is funded, the most recent annual and periodic 
accounting of Company Employee Plan assets; (v) the most recent summary plan 
description together with the summary of material modifications thereto, if 
any, required under ERISA with respect to each Company Employee Plan; (vi) 
all IRS determination, opinion, notification and advisory letters, and 
rulings relating to Company Employee Plans and copies of all applications and 
correspondence to or from the IRS or the DOL with respect to any Company 
Employee Plan (and to the extent not delivered are not material); (vii) all 
material written agreements and contracts relating to each Company Employee 
Plan, including, but not limited to, administrative service agreements, group 
annuity contracts and group insurance contracts; (viii) forms of all COBRA 
forms and related 

                                    -21-
<PAGE>

notices; and (ix) all registration statements and prospectuses prepared in 
connection with each Company Employee Plan.

          (d)  EMPLOYEE PLAN COMPLIANCE. (i) Company has performed in all 
material respects all obligations required to be performed by it under, is 
not in default or violation of, and has no knowledge of any default or 
violation by any other party to each Company Employee Plan, and each Company 
Employee Plan has been established and maintained in all material respects in 
accordance with its terms and in compliance with all applicable laws, 
statutes, orders, rules and regulations, including but not limited to ERISA 
or the Code; (ii) each Company Employee Plan intended to qualify under 
Section 401(a) of the Code and each trust intended to qualify under Section 
501(a) of the Code has either received a favorable determination letter from 
the IRS with respect to each such Plan as to its qualified status under the 
Code, including all amendments to the Code effected by the Tax Reform Act of 
1986 and subsequent legislation, or has remaining a period of time under 
applicable Treasury regulations or IRS pronouncements in which to apply for 
such a determination letter and make any amendments necessary to obtain a 
favorable determination; (iii) no "prohibited transaction," within the 
meaning of Section 4975 of the Code or Sections 406 and 407 of ERISA, and not 
otherwise exempt under Section 408 of ERISA, has occurred with respect to any 
Company Employee Plan; (iv) there are no actions, suits or claims pending, 
or, to the knowledge of Company, threatened or reasonably anticipated (other 
than routine claims for benefits) against any Company Employee Plan or 
against the assets of any Company Employee Plan; (v) each Company Employee 
Plan can be amended, terminated or otherwise discontinued after the Effective 
Time in accordance with its terms, without material (in each case relative to 
the liabilities under such Plan) liability to Parent, Company or any of its 
Affiliates (other than ordinary administration expenses typically incurred in 
a termination event); (vi) there are no audits, inquiries or proceedings 
pending or, to the knowledge of Company or any Affiliates, threatened by the 
IRS or DOL with respect to any Company Employee Plan; and (vii) neither 
Company nor any Affiliate is subject to any penalty or tax with respect to 
any Company Employee Plan under Section 502(i) of ERISA or Sections 4975 
through 4980 of the Code.

          (e)  PENSION PLANS.  Company does not now, nor has it ever, 
maintained, established, sponsored, participated in, or contributed to, any 
Pension Plan which is subject to Title IV of ERISA or Section 412 of the Code.

          (f)  MULTIEMPLOYER PLANS.  At no time has Company contributed to or 
been requested to contribute to any Multiemployer Plan.

                                    -22-
<PAGE>

          (g)  NO POST-EMPLOYMENT OBLIGATIONS.  No Company Employee Plan 
provides, or has any liability to provide, retiree life insurance, retiree 
health or other retiree employee welfare benefits to any person for any 
reason, except as may be required by COBRA or other applicable statute, and 
Company has never represented, promised or contracted (whether in oral or 
written form) to any Employee (either individually or to Employees as a 
group) or any other person that such Employee(s) or other person would be 
provided with retiree life insurance, retiree health or other retiree 
employee welfare benefit, except to the extent required by statute.

          (h)  Neither Company nor any Affiliate has, prior to the Effective 
Time, and in any material respect, violated any of the health care 
continuation requirements of COBRA, the requirements of FMLA or any similar 
provisions of state law applicable to its Employees.

          (i)  EFFECT OF TRANSACTION

               (i)  The execution of this Agreement and the consummation of 
the transactions contemplated hereby will not (either alone or upon the 
occurrence of any additional or subsequent events) constitute an event under 
any Company Employee Plan, Employee Agreement, trust or loan that will or may 
result in any payment (whether of severance pay or otherwise), acceleration, 
forgiveness of indebtedness, vesting, distribution, increase in benefits or 
obligation to fund benefits with respect to any Employee.

               (ii) No payment or benefit which will or may be made by 
Company or its Affiliates with respect to any Employee as a result of the 
transactions contemplated by this Agreement will be characterized as an 
"excess parachute payment," within the meaning of Section 280G(b)(1) of the 
Code.

          (j)  EMPLOYMENT MATTERS.  Company and each of its material 
subsidiaries:  (i) is in compliance in all material respects with the 
applicable foreign, federal, state and local laws, rules and regulations 
respecting employment, employment practices and wages and hours, in each 
case, in each location in which Company or any of its material subsidiaries 
employs persons; (ii) has withheld all amounts required by law or by 
agreement to be withheld from the wages, salaries and other payments to 
Employees; (iii) is not liable for any material arrears of wages or any taxes 
or any penalty for failure to comply with any of the foregoing; and (iv) is 
not liable for any material payment to any trust or other fund or to any 
governmental or administrative authority, with respect to unemployment 
compensation benefits, social security or other benefits or obligations for 
Employees (other than routine payments to be made in the normal course of 
business and consistent with past 

                                    -23-
<PAGE>

practice).  There are no pending, threatened or reasonably anticipated claims 
or actions for benefits under Company's worker's compensation policy or 
long-term disability policy that would not be covered by such policy.  To 
Company's knowledge, no employee of Company has violated any employment 
contract, nondisclosure agreement or noncompetition agreement by which such 
employee is bound due to such employee being employed by Company and 
disclosing to Company or using trade secrets or proprietary information of 
any other person or entity.

          (k)  LABOR.  No work stoppage or labor strike against Company is 
pending,  threatened or reasonably anticipated. Company does not know of any 
activities or proceedings of any labor union to organize any Employees.  
There are no actions, suits, claims, labor disputes or grievances pending, 
or, to the knowledge of Company, threatened or reasonably anticipated 
relating to any labor, safety or discrimination matters involving any 
Employee, including, without limitation, charges of unfair labor practices or 
discrimination complaints, which, if adversely determined, would, 
individually or in the aggregate, result in any material liability to 
Company.  Neither Company nor any of its subsidiaries has engaged in any 
unfair labor practices within the meaning of the National Labor Relations 
Act.  Company is not presently, nor has it been in the past, a party to, or 
bound by, any collective bargaining agreement or union contract with respect 
to Employees and no collective bargaining agreement is being negotiated by 
Company.

          (l)  INTERNATIONAL EMPLOYEE PLAN.  Each International Employee Plan 
has been established, maintained and administered in material compliance with 
its terms and conditions and with the requirements prescribed by any and all 
statutory or regulatory laws that are applicable to such International 
Employee Plan. Furthermore, no International Employee Plan has unfunded 
liabilities, that as of the Effective Time, will not be offset by insurance 
or fully accrued.  Except as required by law, no condition exists that would 
prevent Company or Parent from terminating or amending any International 
Employee Plan at any time for any reason.

     2.14 ENVIRONMENTAL MATTERS.  

          (a)  HAZARDOUS MATERIAL.  Except as reasonably would not be likely 
to result in material liability to Company, no underground storage tanks and 
no amount of any substance that has been designated by any Governmental 
Entity or by applicable federal, state or local law to be radioactive, toxic, 
hazardous or otherwise a danger to health or the environment, including, 
without limitation, PCBs, asbestos, petroleum, urea-formaldehyde and all 
substances listed as hazardous substances pursuant to the Comprehensive 
Environmental Response, Compensation, and Liability Act of 1980, as amended, 
or defined as a hazardous waste pursuant to the 

                                    -24-
<PAGE>

United States Resource Conservation and Recovery Act of 1976, as amended, and 
the regulations promulgated pursuant to said laws, but excluding office and 
janitorial supplies, (a "HAZARDOUS MATERIAL") are present, as a result of the 
actions of Company or any of its subsidiaries or any affiliate of Company, 
or, to Company's knowledge, as a result of any actions of any third party or 
otherwise, in, on or under any property, including the land and the 
improvements, ground water and surface water thereof, that Company or any of 
its subsidiaries has at any time owned, operated, occupied or leased.

          (b)  HAZARDOUS MATERIALS ACTIVITIES. Except as reasonably would not 
be likely to result in a material liability to Company (in any individual 
case or in the aggregate) (i) neither Company nor any of its subsidiaries has 
transported, stored, used, manufactured, disposed of, released or exposed its 
employees or others to Hazardous Materials in violation of any law in effect 
on or before the Closing Date,  and (ii) neither Company nor any of its 
subsidiaries has disposed of, transported, sold, used, released, exposed its 
employees or others to or manufactured any product containing a Hazardous 
Material (collectively "HAZARDOUS MATERIALS ACTIVITIES") in violation of any 
rule, regulation, treaty or statute promulgated by any Governmental Entity in 
effect prior to or as of the date hereof to prohibit, regulate or control 
Hazardous Materials or any Hazardous Material Activity.

          (c)  PERMITS.  Company and its subsidiaries currently hold all 
material environmental approvals, permits, licenses, clearances and consents 
(the "COMPANY ENVIRONMENTAL PERMITS") necessary for the conduct of Company's 
and its subsidiaries' Hazardous Material Activities and other businesses of 
Company and its material subsidiaries as such activities and businesses are 
currently being conducted. 

          (d)  ENVIRONMENTAL LIABILITIES.  No action, proceeding, revocation 
proceeding, amendment procedure, writ or injunction is pending, and to 
Company's knowledge, no action, proceeding, revocation proceeding, amendment 
procedure, writ or injunction has been threatened by any Governmental Entity 
against Company or any of its subsidiaries in a writing delivered to Company 
concerning any Company Environmental Permit, Hazardous Material or any 
Hazardous Materials Activity of Company or any of its subsidiaries.  Company 
is not aware of any fact or circumstance which could involve Company or any 
of its subsidiaries in any environmental litigation or impose upon Company 
any material environmental liability.

     2.15 AGREEMENTS, CONTRACTS AND COMMITMENTS.  Neither Company nor any of 
its material subsidiaries is a party to or is bound by:

                                    -25-
<PAGE>

          (a)  any employment or consulting agreement, contract or commitment 
with any officer or director or higher level employee or member of Company's 
Board of Directors, other than those that are terminable by Company or any of 
its subsidiaries on no more than thirty days notice without liability or 
financial obligation, except to the extent general principles of wrongful 
termination law may limit Company's or any of its subsidiaries' ability to 
terminate employees at will;

          (b)  any agreement or plan, including, without limitation, any 
stock option plan, stock appreciation right plan or stock purchase plan, any 
of the benefits of which will be increased, or the vesting of 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;

          (c)  any agreement of indemnification or any guaranty other than 
any agreement of indemnification entered into in connection with the sale or  
license of software products in the ordinary course of business;

          (d)  any agreement, contract or commitment containing any covenant 
limiting in any material respect the right of Company or any of its material 
subsidiaries to engage in any line of business or to compete with any person 
or granting any exclusive distribution rights;

          (e)  any material agreement, contract or commitment currently in 
force relating to the disposition or acquisition by Company or any of its 
subsidiaries after the date of this Agreement of a material amount of assets 
not in the ordinary course of business or pursuant to which Company has any 
material ownership interest in any corporation, partnership, joint venture or 
other business enterprise other than Company's subsidiaries; 

          (f)  any material joint marketing or development agreement 
currently in force under which Company or any of its subsidiaries have 
continuing material obligations to jointly market any product, technology or 
service and which may not be canceled without penalty upon notice of 90 days 
or less, or any material agreement pursuant to which Company or any of its 
subsidiaries have continuing material obligations to jointly develop any 
intellectual property that will not be owned, in whole or in part, by Company 
or any of its subsidiaries and which may not be canceled without penalty upon 
notice of 90 days or less; 

          (g)  any agreement, contract or commitment currently in force to 
provide source code to any third party for any product or technology that is 
material to Company and its subsidiaries taken as a whole; or

                                    -26-
<PAGE>

          (h)  any agreement, contract or commitment currently in force to 
license any third party to manufacture or reproduce any Company product, 
service or technology except as a distributor in the normal course of 
business.

     Neither Company nor any of its material subsidiaries, nor to Company's 
knowledge any other party to a Company Contract (as defined below), is in 
breach, violation or default under, and neither Company nor any of its 
subsidiaries has received written notice that it has breached, violated or 
defaulted under, any of the material terms or conditions of any of the 
agreements, contracts or commitments to which Company or any of its 
subsidiaries is a party or by which it is bound that are required to be 
disclosed in the Company Schedules pursuant to clauses (a) through (h) above 
or pursuant to Section 2.9 hereof (any such agreement, contract or 
commitment, a "COMPANY CONTRACT") in such a manner as would permit any other 
party to cancel or terminate any such Company Contract, or would permit any 
other party to seek material damages or other remedies (for any or all of 
such breaches, violations or defaults, in the aggregate).

     2.16 POOLING OF INTERESTS.  To the knowledge of Company, based on 
consultation with its independent accountants, neither Company nor any of its 
directors, officers, affiliates or stockholders has taken any action which 
would preclude Parent's ability to account for the Merger as a pooling of 
interests. 

     2.17 CERTAIN PAYMENTS.  The Company Schedules set forth each plan or 
agreement pursuant to which any amounts may become payable (whether currently 
or in the future) to current or former officers and directors of Company as a 
result of or in connection with the Merger.

     2.18 REGISTRATION STATEMENT; JOINT PROXY STATEMENT/PROSPECTUS.  The 
information supplied by Company for inclusion in the Registration Statement 
(as defined in Section 3.4(b)) shall not at the time the Registration 
Statement is filed with the SEC and at the time it becomes effective under 
the Securities Act contain any untrue statement of a material fact or omit to 
state any material fact required to be stated therein or necessary in order 
to make the statements therein, in light of the circumstances under which 
they are made, not misleading.  The information supplied by Company for 
inclusion in the joint proxy statement/prospectus to be sent to (a) the 
stockholders of Company in connection with the meeting of Company's 
stockholders to consider the approval and adoption of this Agreement and the 
approval of the Merger (the "COMPANY STOCKHOLDERS' MEETING") and (b) the 
stockholders of Parent in connection with the meeting of Parent's 
stockholders to consider the approval of the issuance of shares of Parent 
Common Stock pursuant to the Merger (the "PARENT STOCKHOLDERS' MEETING") 
(such joint proxy statement/prospectus as amended or supplemented is referred 
to herein as the "JOINT PROXY STATEMENT/PROSPECTUS") shall 

                                    -27-
<PAGE>

not, on the date the Joint Proxy Statement/Prospectus is first mailed to 
Company's stockholders and Parent's stockholders or at the time of the 
Company Stockholders' Meeting or the Parent Stockholders' Meeting, contain 
any untrue statement of a material fact or omit to state any material fact 
required to be stated therein or necessary in order to make the statements 
therein, in light of the circumstances under which they are made, not false 
or misleading; or omit to state any material fact necessary to correct any 
statement in any earlier communication with respect to the solicitation of 
proxies for the Company Stockholders' Meeting or the Parent Stockholders' 
Meeting which has become false or misleading.  If at any time prior to the 
Effective Time any event relating to Company or any of its affiliates, 
officers or directors should be discovered by Company which is required to be 
set forth in an amendment to the Registration Statement or a supplement to 
the Joint Proxy Statement/Prospectus, Company shall promptly inform Parent.  
Notwithstanding the foregoing, Company makes no representation or warranty 
with respect to any information supplied by Parent or Merger Sub which is 
contained in any of the foregoing documents.

     2.19 BOARD APPROVAL.  The Board of Directors of Company has, as of the 
date of this Agreement, determined (i) that the Merger is fair to, and in the 
best interests of Company and its stockholders, and, (ii) subject to the 
terms and conditions set forth in this Agreement, to recommend that the 
stockholders of Company approve and adopt this Agreement and approve the 
Merger. 

     2.20 FAIRNESS OPINION.  Company's Board of Directors has received an 
opinion from Hambrecht & Quist LLC dated as of the date hereof, to the effect 
that as of the date hereof, the Merger and the Exchange Ratio are fair to 
Company's stockholders from a financial point of view and has delivered or 
will promptly deliver to Parent a copy of such opinion.

     2.21 SECTION 203 OF THE DELAWARE GENERAL CORPORATION LAW NOT APPLICABLE; 
COMPANY RIGHTS PLAN.  The Board of Directors of Company has taken all actions 
so that (a) the restrictions contained in Section 203 of the Delaware General 
Corporation Law applicable to a "business combination" (as defined in such 
Section 203) will not apply to the execution, delivery or performance of this 
Agreement or to the consummation of the Merger or the other transactions 
contemplated by this Agreement and (b) the execution, delivery and 
performance of this Agreement and the consummation of the Merger will not 
cause any change, effect or result under the Company Rights Plan which is 
adverse to the interests of Parent.  Without limiting the generality of the 
foregoing, if necessary to accomplish the foregoing, the Company Rights Plan 
has been amended to (i) render the Company Rights Plan inapplicable to the 
Merger and the other transactions contemplated by this Agreement, (ii) ensure 
that (x) none of Parent or its subsidiaries 

                                    -28-
<PAGE>

is an Acquiring Person (as defined in the Company Rights Plan) pursuant to 
the Company Rights Plan by virtue of the execution of this Agreement or the 
consummation of the Merger or the other transactions contemplated hereby and 
(y) a Distribution Date, Flip-In Event, Triggering Event or Flip-Over Event 
(as such terms are defined in the Company Rights Plan) does not occur by 
reason of the execution of this Agreement, the consummation of the Merger, or 
the consummation of the transactions contemplated hereby, and such amendment 
may not be further amended by Company without the prior consent of Parent in 
its sole discretion.

     2.22 CUSTOMS. Company has acted with reasonable care to properly value 
and classify, in accordance with applicable tariff laws, rules and 
regulations, all goods that Company or any of its subsidiaries import into 
the United States or into any other country (the "IMPORTED GOODS").  To 
Company's knowledge, there are currently no material claims pending against 
Company by the U.S. Customs Service (or other foreign customs authorities) 
relating to the valuation, classification or marking of the Imported Goods.

                             ARTICLE III
                  REPRESENTATIONS AND WARRANTIES OF
                        PARENT AND MERGER SUB
                                  
     Parent and Merger Sub represent and warrant to Company, subject to the 
exceptions specifically disclosed in writing in the disclosure letter and 
referencing a specific representation supplied by Parent to Company dated as 
of the date hereof and certified by a duly authorized officer of Parent (the 
"PARENT SCHEDULES"), as follows: 

     3.1  ORGANIZATION OF PARENT.  

          (a)  Each of Parent, Merger Sub and the material subsidiaries of 
Parent (i) is a corporation duly organized, validly existing and in good 
standing under the laws of the jurisdiction in which it is organized; (ii) 
has the corporate or other power and authority to own, lease and operate its 
assets and property and to carry on its business as now being conducted; and 
(iii), except as would not be material to Parent, is duly qualified or 
licensed to do business in each jurisdiction where the character of the 
properties owned, leased or operated by it or the nature of its activities 
makes such qualification or licensing necessary. 

          (b)  Parent has delivered or made available to Company a true and 
correct copy of the Certificate of Incorporation and Bylaws of Parent, each 
as amended to date, and each such instrument is in full force and effect.  
Neither Parent 

                                    -29-
<PAGE>

nor any of its material subsidiaries is in violation of any of the provisions 
of its Certificate of Incorporation or Bylaws or equivalent governing 
instruments.  

     3.2  PARENT AND MERGER SUB CAPITAL STRUCTURE.  The authorized capital 
stock of Parent consists of 100,000,000 shares of Common Stock, of which 
there were 51,259,448 shares issued and outstanding as of September 30, 1997, 
and 5,000,000 shares of Preferred Stock, of which one share of Series A 
Preferred Stock is issued and outstanding.  As of September 30, 1997, Parent 
had reserved an aggregate of 10,317,588 shares of Parent Common Stock, net of 
exercises, for issuance pursuant to Parent's 1997 Stock Incentive Plan, the 
FSA Stock Option Plan, Parent's Outside Director Stock Option Plan, the SA93 
Stock Option Plan, the SAII Stock Option Plan, Parent's Non-Officer Stock 
Option Plan and Parent's 1992 Stock Option Plan.  As of September 30, 1997, 
there were options outstanding to purchase an aggregate of 8,016,938 shares 
of Parent Common Stock pursuant to such plans.  As of September 30, 1997, 
Parent had reserved an aggregate of 354,181 shares of Parent Common Stock, 
net of purchases, for issuance pursuant to Parent's Employee Stock Purchase 
Plan. All outstanding shares of Parent Common Stock are duly authorized, 
validly issued, fully paid and nonassessable and are not subject to 
preemptive rights created by statute, the Articles of Incorporation or Bylaws 
of Parent or any agreement or document to which Parent is a party or by which 
it is bound.  The authorized capital stock of Merger Sub consists of 1000 
shares of Common Stock, $0.001 par value, all of which, as of the date 
hereof, are issued and outstanding and are held by Parent.  Merger Sub was 
formed on or about October 10, 1997, for the purpose of consummating the 
Merger and has no material assets or liabilities except as necessary for such 
purpose. 

     3.3  OBLIGATIONS WITH RESPECT TO CAPITAL STOCK.  Except as set forth in 
Section 3.2, there are no equity securities, partnership interests or similar 
ownership interests of any class of Parent, or any securities exchangeable or 
convertible into or exercisable for such equity securities, partnership 
interests or similar ownership interests, issued, reserved for issuance or 
outstanding. Except for securities Parent owns free and clear of all claims 
and encumbrances, directly or indirectly through one or more subsidiaries, 
and except for shares of capital stock or other similar ownership interests 
of certain subsidiaries of Parent that are owned by certain nominee equity 
holders as required by the applicable law of the jurisdiction of organization 
of such subsidiaries, as of the date of this Agreement, there are no equity 
securities, partnership interests or similar ownership interests of any class 
of any material subsidiary of Parent, or any security exchangeable or 
convertible into or exercisable for such equity securities, partnership 
interests or similar ownership interests, issued, reserved for issuance or 
outstanding. Except as set forth in Section 3.2, there are no options, 
warrants, equity securities, partnership interests or similar ownership 
interests, calls, rights (including preemptive rights), commitments 

                                    -30-
<PAGE>

or agreements of any character to which Parent is a party or by which it is 
bound obligating Parent to issue, deliver or sell, or cause to be issued, 
delivered or sold, or repurchase, redeem or otherwise acquire, or cause the 
repurchase, redemption or acquisition of, any shares of capital stock, 
partnership interests or similar ownership interests of Company or obligating 
Company to grant, extend, accelerate the vesting of or enter into any such 
option, warrant, equity security, call, right, commitment or agreement. As of 
the date of this Agreement, except as contemplated by this Agreement, the 
Parent Voting Agreement and the Parent Affiliate Agreement, there are no 
voting trusts, proxies or other agreements or understandings to which Parent 
is a party or by which it is bound with respect to any equity security of any 
class of Parent or with respect to any equity security, partnership interest 
or similar ownership interest of any class of any of its material 
subsidiaries. 

     3.4  AUTHORITY.  

          (a)  Each of Parent and Merger Sub has all requisite corporate 
power and authority to enter into this Agreement and to consummate the 
transactions contemplated hereby, subject only to the approval of the 
issuance of Parent Common Stock pursuant to the Merger by Parent's 
stockholders.  The execution and delivery of this Agreement and the 
consummation of the transactions contemplated hereby have been duly 
authorized by all necessary corporate action on the part of Parent and Merger 
Sub, subject only to the approval of the issuance of Parent Common Stock 
pursuant to the Merger by Parent's stockholders and the filing of the 
Certificate of Merger pursuant to Delaware Law.  Approval by the stockholders 
of Parent of the issuance of Parent Common Stock pursuant to the Merger may 
be obtained by the vote of a majority of the total votes cast regarding such 
proposal at a duly called and noticed meeting of Parent's stockholders at 
which a quorum is present.  This Agreement has been duly executed and 
delivered by each of Parent and Merger Sub and, assuming the due 
authorization, execution and delivery by Company, constitutes the valid and 
binding obligation of Parent and Merger Sub, enforceable against Parent and 
Merger Sub in accordance with its terms, except as enforceability may be 
limited by bankruptcy and other similar laws and general principles of 
equity.  The execution and delivery of this Agreement by each of Parent and 
Merger Sub does not, and the performance of this Agreement by each of Parent 
and Merger Sub will not, (i) conflict with or violate the Certificate of 
Incorporation or Bylaws of Parent or Merger Sub, (ii) conflict with or 
violate any law, rule, regulation, order, judgment or decree applicable to 
Parent or Merger Sub or by which any of their respective properties is bound 
or affected or (iii) result in any material breach of or constitute a 
material default (or an event that with notice or lapse of time or both would 
become a material default) under, or materially impair Parent's material 
rights or alter the material rights or material obligations of any third 
party under, or give to others any rights of termination, amendment, 
acceleration or cancellation of, or result in the 

                                    -31-
<PAGE>

creation of a material lien or encumbrance on any of the material properties 
or assets of Parent or Merger Sub pursuant to, any material note, bond, 
mortgage, indenture, contract, agreement, lease, license, permit, franchise 
or other instrument or obligation to which Parent or Merger Sub is a party or 
by which Parent or Merger Sub or any of their respective properties are bound 
or affected.    The Parent Schedules list all consents, waivers and approvals 
under any of Parent's or any of its material subsidiaries' agreements, 
contracts, licenses or leases required to be obtained in connection with the 
consummation of the transactions contemplated hereby, which, if individually 
or in the aggregate not obtained, would result in a material loss of benefits 
to Parent as a result of the Merger.

          (b)  No consent, approval, order or authorization of, or 
registration, declaration or filing with any Governmental Entity is required 
to be obtained or made by  Parent, Merger Sub, or any material subsidiary of 
Parent in connection with the execution and delivery of this Agreement or the 
consummation of the Merger, except for (i) the filing of a Form S-4 (or any 
similar successor form thereto) Registration Statement (the "REGISTRATION 
STATEMENT") with the SEC in accordance with the Securities Act, (ii) the 
filing of the Certificate of Merger with the Secretary of State of the State 
of Delaware, (iii) such consents, approvals, orders, authorizations, 
registrations, declarations and filings as may be required under applicable 
federal, foreign and state securities (or related) laws and the HSR Act and 
the securities or antitrust laws of any foreign country, and (iv) such other 
consents, authorizations, filings, approvals and registrations which if not 
obtained or made would not be material to Parent or have a material adverse 
effect on the ability of Parent or Merger Sub to consummate the Merger.

          (c)  The Board of Directors of Parent has all requisite corporate 
power and authority  to take the actions described in Section 5.14 hereof. 

     3.5  SEC FILINGS; PARENT FINANCIAL STATEMENTS.

          (a)  Parent has filed all forms, reports and documents required to 
be filed by Parent with the SEC since September 1, 1994, and has made 
available to Company such forms, reports and documents in the form filed with 
the SEC.  All such required forms, reports and documents (including those 
that Parent may file subsequent to the date hereof) are referred to herein as 
the "PARENT SEC REPORTS."  As of their respective dates, the Parent SEC 
Reports (i) were prepared in accordance with the requirements of the 
Securities Act or the Exchange Act, as the case may be, and the rules and 
regulations of the SEC thereunder applicable to such Parent SEC Reports, and 
(ii) did not at the time they were filed (or if amended or superseded by a 
filing prior to the date of this Agreement, then on the date of such filing) 
contain any untrue statement of a material fact or omit to state a material 
fact required to be 

                                    -32-
<PAGE>

stated therein or necessary in order to make the statements therein, in the 
light of the circumstances under which they were made, not misleading.  None 
of Parent's subsidiaries is required to file any forms, reports or other 
documents with the SEC.

          (b)  Each of the consolidated financial statements (including, in 
each case, any related notes thereto) contained in the Parent SEC Reports 
(the "PARENT FINANCIALS"), including any Parent SEC Reports filed after the 
date hereof until the Closing, (i) complied as to form in all material 
respects with the published rules and regulations of the SEC with respect 
thereto, (ii) was prepared in accordance with GAAP applied on a consistent 
basis throughout the periods involved (except as may be indicated in the 
notes thereto or, in the case of unaudited interim financial statements, as 
may be permitted by the SEC on Form 10-Q under the Exchange Act) and (iii) 
fairly presented the consolidated financial position of Parent and its 
subsidiaries as at the respective dates thereof and the consolidated results 
of Parent's operations and cash flows for the periods indicated, except that 
the unaudited interim financial statements may not contain footnotes and were 
or are subject to normal and recurring year-end adjustments.  The balance 
sheet of Parent contained in Parent SEC Reports as of June 30, 1997 is 
hereinafter referred to as the "PARENT BALANCE SHEET."  Except as disclosed 
in the Parent Financials, since the date of the Parent Balance Sheet neither 
Parent nor any of its subsidiaries has any liabilities required under GAAP to 
be set forth on a balance sheet (absolute, accrued, contingent or otherwise) 
which are, individually or in the aggregate, material to the business, 
results of operations or financial condition of Parent and its subsidiaries 
taken as a whole, except for liabilities incurred since the date of the 
Parent Balance Sheet in the ordinary course of business consistent with past 
practices.

     3.6  ABSENCE OF CERTAIN CHANGES OR EVENTS. Since the date of the Parent 
Balance Sheet there has not been: (i) any Material Adverse Effect on Parent, 
(ii) any declaration, setting aside or payment of any dividend on, or other 
distribution (whether in cash, stock or property) in respect of, any of 
Parent's capital stock, or any purchase, redemption or other acquisition by 
Parent of any of Parent's capital stock or any other securities of Parent or 
any options, warrants, calls or rights to acquire any such shares or other 
securities except for repurchases from employees following their termination 
pursuant to the terms of their pre-existing stock option or purchase 
agreements, (iii) any split, combination or reclassification of any of 
Parent's capital stock, (iv) entry by Parent or any of its subsidiaries into 
any licensing or other agreement with regard to the acquisition or 
disposition of any material Intellectual Property other than licenses in the 
ordinary course of business consistent with past practice or any amendment or 
consent with respect to any licensing agreement filed or required to be filed 
by Parent with the SEC, (v) any material change by Parent in its accounting 
methods, principles or practices, except as required by concurrent changes in 
GAAP, or (vi) any material revaluation by Parent of any of its assets, 

                                    -33-
<PAGE>

including, without limitation, writing down the value of capitalized 
inventory or writing off notes or accounts receivable other than in the 
ordinary course of business.

     3.7  TAXES.

          (a)  Parent and each of its subsidiaries have timely filed all 
Returns relating to Taxes required to be filed by Parent and each of its 
subsidiaries with any Tax authority, except such Returns which are not 
material to Parent, and have paid all Taxes shown to be due on such Returns.

          (b)  Neither Parent nor any of its material subsidiaries has been 
delinquent in the payment of any Tax nor is there any Tax deficiency 
outstanding, proposed or assessed against Parent or any of its material 
subsidiaries, nor has Parent or any of its material subsidiaries executed any 
unexpired waiver of any statute of limitations on or extending the period for 
the assessment or collection of any Tax.

          (c)  Neither Parent nor any of its subsidiaries has any liability 
for unpaid Taxes which has not been accrued for or reserved on the Parent 
Balance Sheet, whether asserted or unasserted, contingent or otherwise, which 
is material to Parent, other than any liability for unpaid Taxes that may 
have accrued since the date of the Parent Balance Sheet in connection with 
the operation of the business of Parent and its subsidiaries in the ordinary 
course.

     3.8  TITLE TO PROPERTIES; ABSENCE OF LIENS AND ENCUMBRANCES. Parent has 
good and valid title to, or, in the case of leased properties and assets, 
valid leasehold interests in, all of its tangible properties and assets, 
real, personal and mixed, used or held for use in its business, free and 
clear of any Liens, except as reflected in the Parent Financials and except 
for liens for taxes not yet due and payable and such Liens or other 
imperfections of title and encumbrances, if any, which are not material in 
character, amount or extent, and which do not materially detract from the 
value, or materially interfere with the present use, of the property subject 
thereto or affected thereby.

     3.9  INTELLECTUAL PROPERTY. For the purposes of this Agreement, the 
following terms have the following definitions:

          "PARENT INTELLECTUAL PROPERTY" shall mean any
          Intellectual Property that is owned by, or exclusively
          licensed to, Parent or any of its material
          subsidiaries.

                                    -34-
<PAGE>

          "PARENT REGISTERED INTELLECTUAL PROPERTY" means all of
          the Registered Intellectual Property owned by, or filed
          in the name of, Parent.

          (a)  No material Parent Intellectual Property or product or service 
of Parent is subject to any proceeding or outstanding decree, order, 
judgment, agreement, or stipulation restricting in any manner the use, 
transfer, or licensing thereof by Parent, or which may affect the validity, 
use or enforceability of such Parent Intellectual Property.

          (b)  Each material item of Parent Registered Intellectual Property 
is valid and subsisting, all necessary registration, maintenance and renewal 
fees currently due in connection with such Registered Intellectual Property 
have been made and all necessary documents, recordations and certificates in 
connection with such Registered Intellectual Property have been filed with 
the relevant patent, copyright, trademark or other authorities in the United 
States or foreign jurisdictions, as the case may be, for the purposes of 
maintaining such Registered Intellectual Property.  

          (c)  Parent owns and has good and exclusive title to, or has 
license (sufficient for the conduct of its business as currently conducted 
and as proposed to be conducted) to, each material item of Parent 
Intellectual Property free and clear of any lien or encumbrance (excluding 
licenses and related restrictions); and Parent is the exclusive owner of all 
trademarks and trade names used in connection with the operation or conduct 
of the business of Parent, including the sale of any products or the 
provision of any services by Parent.

          (d)  Parent owns exclusively, and has good title to, all 
copyrighted works that are Parent products or which Parent otherwise 
expressly purports to own.

          (e)  To the extent that any material Intellectual Property has been 
developed or created by a third party for Parent, Parent has a written 
agreement with such third party with respect thereto and Parent thereby 
either (i) has obtained ownership of, and is the exclusive owner of, or (ii) 
has obtained a license (sufficient for the conduct of its business as 
currently conducted and as proposed to be conducted) to all such third 
party's Intellectual Property in such Intellectual Property by operation of 
law or by valid assignment.
     
          (f)  All material contracts, licenses and agreements relating to 
the Parent Intellectual Property are in full force and effect. The 
consummation of the transactions contemplated by this Agreement will neither 
violate nor result in the breach, modification, cancellation, termination, or 
suspension of such contracts, 

                                    -35-
<PAGE>

licenses and agreements.  Parent is in material compliance with, and has not 
materially breached any term any of such contracts, licenses and agreements 
and, to the knowledge of Parent, all other parties to such contracts, 
licenses and agreements are in compliance with, and have not materially 
breached any term of, such contracts, licenses and agreements.

          (g)  The operation of the business of Parent as such business 
currently is conducted, including Parent's design, development, manufacture, 
marketing and sale of the products or services of Parent (including with 
respect to products currently under development) has not, does not and will 
not infringe or misappropriate the Intellectual Property of any third party 
(provided that with respect to patent rights, such representation is limited 
to Parent's knowledge) or, to its knowledge, constitute unfair competition or 
trade practices under the laws of any jurisdiction.

          (h)  Parent has not received notice from any third party that the 
operation of the business of Parent or any act, product or service of Parent, 
infringes or misappropriates the Intellectual Property of any third party or 
constitutes unfair competition or trade practices under the laws of any 
jurisdiction.

          (i)  To the knowledge of Parent, no Person has or is infringing or 
misappropriating any Parent Intellectual Property.

          (j)  Parent has taken reasonable steps to protect Parent's rights 
in Parent's confidential information and trade secrets that it wishes to 
protect or any trade secrets or confidential information of third parties 
provided to Parent, and, without limiting the foregoing, Parent has and 
enforces a policy requiring each employee and contractor to execute a 
proprietary information/confidentiality agreement substantially in the form 
provided to Parent and all current and former employees and contractors of 
Parent have executed such an agreement, except where the failure to do so is 
not reasonably expected to be material to Parent. 

     3.10 COMPLIANCE; PERMITS; RESTRICTIONS.

          (a)  Neither Parent nor any of its subsidiaries is, in any material 
respect, in conflict with, or in default or in violation of (i) any law, 
rule, regulation, order, judgment or decree applicable to Parent or any of 
its subsidiaries or by which Parent or any of its subsidiaries or any of 
their respective properties is bound or affected, or (ii) any material note, 
bond, mortgage, indenture, contract, agreement, lease, license, permit, 
franchise or other instrument or obligation to which Parent or any of its 
subsidiaries is a party or by which Parent or any of its subsidiaries or its 
or any of their respective properties is bound or affected, except for 
conflicts, violations 

                                    -36-
<PAGE>

and defaults that (individually or in the aggregate) would not cause Parent 
to lose any material benefit or incur any material liability. No 
investigation or review by any Governmental Entity is pending or, to Parent's 
knowledge, has been threatened in a writing delivered to Parent against 
Parent or any of its subsidiaries, nor, to Parent's knowledge, has any 
Governmental Entity indicated an intention to conduct an investigation of 
Parent or any of its subsidiaries.  There is no material agreement, judgment, 
injunction, order or decree binding upon Parent or any of its subsidiaries 
which has or could reasonably be expected to have the effect of prohibiting 
or materially impairing any business practice of Parent, any acquisition of 
material property by Parent or the conduct of business by Parent as currently 
conducted.

          (b)  Parent and its subsidiaries hold, to the extent legally 
required, all permits, licenses, variances, exemptions, orders and approvals 
from governmental authorities that are material to and required for the 
operation of the business of Parent as currently conducted (collectively, the 
"PARENT PERMITS").  Parent and its subsidiaries are in compliance in all 
material respects with the terms of the Parent Permits, except where the 
failure to be in compliance with the terms of the Parent Permits would not be 
material to Parent.

     3.11 LITIGATION.  There is no action, suit, proceeding, claim, 
arbitration or investigation pending, and to Parent's knowledge, no person 
has threatened in a writing delivered to Parent to commence any action, suit, 
proceeding, claim, arbitration or investigation against Parent or any of its 
subsidiaries which would be likely to be material to Parent.  No Governmental 
Entity has at any time challenged or questioned in a writing delivered to 
Parent the legal right of Parent to design, manufacture, offer or sell any of 
its products in the present manner or style thereof.

       3.12 BROKERS' AND FINDERS' FEES.  Except for fees payable to Morgan 
Stanley & Co. pursuant to an engagement letter dated September 9, 1997, a 
copy of which has been made available to Company, Parent has not incurred, 
nor will it incur, directly or indirectly, any liability for brokerage or 
finders' fees or agents' commissions or any similar charges in connection 
with this Agreement or any transaction contemplated thereby.

     3.13 STATEMENTS; JOINT PROXY STATEMENT/PROSPECTUS.  The information 
supplied by Parent for inclusion in the Registration Statement shall not at 
the time the Registration Statement is filed with the SEC and at the time it 
becomes effective under the Securities Act, contain any untrue statement of a 
material fact or omit to state any material fact required to be stated 
therein or necessary in order to make the statements therein, in light of the 
circumstances under which they are made, not misleading.  The information 
supplied by Parent for inclusion in the Joint Proxy Statement/Prospectus 
shall not, on the date the Joint Proxy Statement/Prospectus is 

                                    -37-
<PAGE>

first mailed to Company's stockholders or Parent's stockholders or at the 
time of the Company Stockholders' Meeting or the Parent Stockholders' Meeting 
contain any untrue statement of a material fact or omit to state any material 
fact required to be stated therein or necessary in order to make the 
statements therein, in light of the circumstances under which they are made, 
not false or misleading; or omit to state any material fact necessary to 
correct any statement in any earlier communication with respect to the 
solicitation of proxies for the Company Stockholders' Meeting or the Parent 
Stockholders' Meeting which has become false or misleading.  If at any time 
prior to the Effective Time, any event relating to Parent or any of its 
affiliates, officers or directors should be discovered by Parent which is 
required to be set forth in an amendment to the Registration Statement or a 
supplement to the Joint Proxy Statement/Prospectus, Parent shall promptly 
inform Company. Notwithstanding the foregoing, Parent makes no representation 
or warranty with respect to any information supplied by Company which is 
contained in any of the foregoing documents.

     3.14 VALID ISSUANCE.  The Parent Common Stock to be issued in the 
Merger, when issued in accordance with the provisions of this Agreement: (a) 
will be validly issued, fully paid and nonassessable; and (b) will not be 
subject to any restrictions on resale under the Securities Act, other than 
restrictions imposed by Rule 145 promulgated under the Securities Act.

     3.15 NO OWNERSHIP OF COMPANY COMMON STOCK.  Parent does not own, 
beneficially or of record, any shares of Company Common Stock.

     3.16 POOLING OF INTERESTS.  To the knowledge of Parent, based on 
consultation with its independent accountants, neither Parent nor any of its 
directors, officers, affiliates or stockholders has taken any action which 
would preclude Parent's ability to account for the Merger as a pooling of 
interests. 

     3.17 BOARD APPROVAL.  The Board of Directors of Parent has, as of the 
date of this Agreement, determined (i) that the Merger is fair to, and in the 
best interests of Parent and its stockholders, and, (ii) subject to the terms 
and conditions set forth in this Agreement, to recommend that the 
stockholders of Parent approve the issuance of shares of Parent Common Stock 
pursuant to the Merger. 

     3.18 FAIRNESS OPINION.  Parent's Board of Directors has received an 
opinion from Morgan Stanley & Co. dated as of on or about the date hereof, to 
the effect that as of the date hereof, the Merger and the Exchange Ratio are 
fair to Parent's stockholders from a financial point of view and has 
delivered or will promptly deliver to Company a copy of such opinion.

                                    -38-
<PAGE>

                             ARTICLE IV
                 CONDUCT PRIOR TO THE EFFECTIVE TIME

     4.1  CONDUCT OF BUSINESS BY COMPANY.  During the period from the date of 
this Agreement and continuing until the earlier of the termination of this 
Agreement pursuant to its terms or the Effective Time, Company and each of 
its subsidiaries shall, except to the extent that Parent shall otherwise 
consent in writing, carry on its business, in all material respects, in the 
usual, regular and ordinary course, in substantially the same manner as 
heretofore conducted and in compliance in all material respects with all 
applicable laws and regulations, pay its debts and taxes when due subject to 
good faith disputes over such debts or taxes, pay or perform other material 
obligations when due, and use its commercially reasonable efforts consistent 
with past practices and policies to (i) preserve intact its present business 
organization, (ii) keep available the services of its present officers and 
employees and (iii) preserve its relationships with customers, suppliers, 
distributors, licensors, licensees, and others with which it has business 
dealings.  In addition, Company will promptly notify Parent of any material 
event involving its business or operations.

     In addition, except as permitted by the terms of this Agreement, and 
except as provided in Article 4 of the Company Schedules, without the prior 
written consent of Parent, during the period from the date of this Agreement 
and continuing until the earlier of the termination of this Agreement 
pursuant to its terms or the Effective Time, Company shall not do any of the 
following and shall not permit its subsidiaries to do any of the following:

          (a)  Waive any stock repurchase rights, accelerate, amend or change 
the period of exercisability of options or restricted stock, or reprice 
options granted under any employee, consultant, director or other stock plans 
or authorize cash payments in exchange for any options granted under any of 
such plans;

          (b)  Grant any severance or termination pay to any officer or 
employee except pursuant to written agreements outstanding, or policies 
existing, on the date hereof and as previously disclosed in writing or made 
available to Parent, or adopt any new severance plan;

          (c)  Transfer or license to any person or entity or otherwise 
extend, amend or modify in any material respect any rights to the Company 
Intellectual Property, or enter into grants to future patent rights, other 
than non-exclusive licenses in the ordinary course of business and consistent 
with past practice; 

                                    -39-
<PAGE>

          (d)  Declare, set aside or pay any dividends on or make any other 
distributions (whether in cash, stock, equity securities or property) in 
respect of any capital stock or split, combine or reclassify any capital 
stock or issue or authorize the issuance of any other securities in respect 
of, in lieu of or in substitution for any capital stock;

          (e)  Purchase, redeem or otherwise acquire, directly or indirectly, 
any shares of capital stock of Company or its subsidiaries, except 
repurchases of unvested shares at cost in connection with the termination of 
the employment relationship with any employee, consultant or director 
pursuant to stock option or purchase agreements in effect on the date hereof;

          (f)  Issue, deliver, sell, authorize, pledge or otherwise encumber 
or propose any of the foregoing of, any shares of capital stock or any 
securities convertible into shares of capital stock, or subscriptions, 
rights, warrants or options to acquire any shares of capital stock or any 
securities convertible into shares of capital stock, or enter into other 
agreements or commitments of any character obligating it to issue any such 
shares or convertible securities, other than the issuance delivery and/or 
sale of (i) options pursuant to any of the Company Stock Option Plans with 
strike prices equal to fair market value at the time of grant or options 
pursuant to the ESPP, in each case, in the ordinary course of business, 
consistent with past practice, and subject to and in compliance with the 
restrictions of Section 4.1(p), (ii) shares of Company Common Stock pursuant 
to the exercise of stock options therefor outstanding as of the date of this 
Agreement and (iii) shares of Company Common Stock issuable to participants 
in the ESPP consistent with the terms thereof;

          (g)  Cause, permit or propose any amendments to its Certificate of 
Incorporation, Bylaws or other charter documents (or similar governing 
instruments of any of its material subsidiaries);

          (h)  Acquire or agree to acquire by merging or consolidating with, 
or by purchasing any equity interest in or a material portion of the assets 
of, or by any other manner, any business or any corporation, partnership, 
association or other business organization or division thereof, or otherwise 
acquire or agree to acquire any assets which are material, individually or in 
the aggregate, to the business of Company or enter into any material joint 
ventures, strategic partnerships or alliances;

          (i)  Sell, lease, license, encumber or otherwise dispose of any 
properties or assets which are material, individually or in the aggregate, to 
the business of Company, except sales of product and inventory in the 
ordinary course of business consistent with past practice;

                                    -40-
<PAGE>

          (j)  Incur any indebtedness for borrowed money or guarantee any 
such indebtedness of another person, issue or sell any debt securities or 
options, warrants, calls or other rights to acquire any debt securities of 
Company, enter into any "keep well" or other agreement to maintain any 
financial statement condition or enter into any arrangement having the 
economic effect of any of the foregoing other than (i) in connection with the 
financing of ordinary course trade payables consistent with past practice or 
(ii) pursuant to existing credit facilities in the ordinary course of 
business; 

          (k)  Adopt or amend any employee benefit plan or employee stock 
purchase or employee stock option plan, or enter into any employment contract 
or collective bargaining agreement (other than offer letters and letter 
agreements entered into in the ordinary course of business consistent with 
past practice with employees who are terminable "at will,"), pay any special 
bonus or special remuneration to any director or employee, or increase the 
salaries or wage rates or fringe benefits (including rights to severance or 
indemnification) of its directors, officers, employees or consultants other 
than in the ordinary course of business, consistent with past practice, or 
change in any material respect any management policies or procedures;

          (l)  Make any payments outside of the ordinary course of business 
in excess of $1 million;

          (m)  except in the ordinary course of business, modify, amend or 
terminate any material contract or agreement to which Company or any 
subsidiary thereof is a party or waive, release or assign any material rights 
or claims thereunder;

          (n)  enter into any contracts, agreements, or obligations relating 
to the distribution, sale, license or marketing by third parties of Company's 
products or products licensed by Company other than in the ordinary course of 
business consistent with past practice;

          (o)  revalue any of its material assets or, except as required by 
GAAP, make any change in accounting methods, principles or practices;

          (p)  Take any action that would be reasonably likely to interfere 
with Parent's ability to account for the Merger as a pooling of interests 
whether or not otherwise permitted by the provisions of this Article IV; or

          (q)  Agree in writing or otherwise to take any of the actions 
described in Section 4.1(a) through (p) above.

                                    -41-
<PAGE>

     4.2  CONDUCT OF BUSINESS BY PARENT.  During the period from the date of 
this Agreement and continuing until the earlier of the termination of this 
Agreement pursuant to its terms or the Effective Time, (i) Parent shall 
consult with Company  prior to taking any material action outside of the 
ordinary course of business and (ii) Parent shall consult with and seek the 
advice of Leslie G. Denend, Gregory M. Gallo, Laurence R. Hootnick and Harry 
J. Saal (to the extent such persons continue as directors of Company and are 
reasonably available for such consultation), regarding its intention to 
effect any material acquisition described in Section 4.2(c) (and will share 
the material terms of such acquisition with such persons) prior to the 
earlier of the public announcement of such acquisition, the consummation 
thereof or the execution by Parent of a definitive written agreement 
obligating Parent (subject to customary conditions) to consummate such 
acquisition.  In addition, during the period from the date of this Agreement 
and continuing until the earlier of the termination of this Agreement 
pursuant to its terms or the Effective Time, except as permitted by the terms 
of this Agreement and except as provided in Section 4.2 of the Parent 
Schedules, without the prior written consent of Company, during the period 
from the date of this Agreement and continuing until the earlier of the 
termination of this Agreement pursuant to its terms or the Effective Time, 
Parent shall not do any of the following:

          (a)  Declare, set aside or pay any dividends on or make any other 
distributions (whether in cash, stock, equity securities or property) in 
respect of any capital stock or split, combine or reclassify any capital 
stock or issue or authorize the issuance of any other securities in respect 
of, in lieu of or in substitution for any capital stock; 

          (b)  Take any action that would be reasonably likely to interfere 
with Parent's ability to account for the Merger as a pooling of interests; or

          (c)  Acquire or enter into any agreement to acquire a majority of 
the voting securities or all or substantially all of the assets of any 
corporation or other business entity (other than Company), whether by merger, 
consolidation, stock tender or otherwise, unless the Board of Directors of 
Parent determines in good faith that consummation of such transaction and 
subsequent integration of the business proposed to be acquired, when 
considered in light of the integration of operations of Parent and Company 
following the Merger, would be in the best interests of Parent and the 
stockholders of Parent following the Merger; 

          (d)  Cause, permit or propose any amendments to its Certificate of 
Incorporation, Bylaws or other charter documents; or

                                    -42-
<PAGE>

          (e)  Agree in writing or otherwise to take any of the actions 
described in Section 4.1(a) through (d) above.

                              ARTICLE V
                        ADDITIONAL AGREEMENTS

     5.1  JOINT PROXY STATEMENT/PROSPECTUS; REGISTRATION STATEMENT; OTHER 
FILINGS; BOARD RECOMMENDATIONS. 

          (a)  As promptly as practicable after the execution of this 
Agreement, Company and Parent will prepare, and file with the SEC, the Joint 
Proxy Statement/Prospectus and Parent will prepare and file with the SEC the 
Registration Statement in which the Joint Proxy Statement/Prospectus will be 
included as a prospectus.  Each of Company and Parent will respond to any 
comments of the SEC, will use its respective commercially reasonable efforts 
to have the Registration Statement declared effective under the Securities 
Act as promptly as practicable after such filing and each of Company and 
Parent will cause the Joint Proxy Statement/Prospectus to be mailed to its 
stockholders at the earliest practicable time after the Registration 
Statement is declared effective by the SEC.  As promptly as practicable after 
the date of this Agreement, each of Company and Parent will prepare and file 
any other filings required to be filed by it under the Exchange Act, the 
Securities Act or any other Federal, foreign or Blue Sky or related laws 
relating to the Merger and the transactions contemplated by this Agreement 
(the "OTHER FILINGS").  Each of Company and Parent will notify the other 
promptly upon the receipt of any comments from the SEC or its staff or any 
other government officials and of any request by the SEC or its staff or any 
other government officials for amendments or supplements to the Registration 
Statement, the Joint Proxy Statement/Prospectus or any Other Filing or for 
additional information and will supply the other with copies of all 
correspondence between such party or any of its representatives, on the one 
hand, and the SEC, or its staff or any other government officials, on the 
other hand, with respect to the Registration Statement, the Joint Proxy 
Statement/Prospectus, the Merger or any Other Filing.  Each of Company and 
Parent will cause all documents that it is responsible for filing with the 
SEC or other regulatory authorities under this Section 5.1(a) to comply in 
all material respects with all applicable requirements of law and the rules 
and regulations promulgated thereunder. Whenever any event occurs which is 
required to be set forth in an amendment or supplement to the Joint Proxy 
Statement/Prospectus, the Registration Statement or any Other Filing, Company 
or Parent, as the case may be, will promptly inform the other of such 
occurrence and cooperate in filing with the SEC or its staff or any other 
government officials, and/or mailing to stockholders of Company, such 
amendment or supplement.  

                                    -43-
<PAGE>

          (b)  The Joint Proxy Statement/Prospectus will include
the recommendation of the Board of Directors of Company in favor
of adoption and approval of this Agreement and approval of the
Merger, except to the extent that the Board of Directors of
Company shall have withdrawn or modified its approval of this
Agreement or the Merger in accordance with Section 5.4(a)(ii). 

          (c)  The Joint Proxy Statement/Prospectus will include the 
recommendation of the Board of Directors of Parent in favor of approval of 
issuance of shares of Parent Common Stock pursuant to the Merger, except that 
the Board of Directors of Parent may withdraw, modify or refrain from making 
such recommendation to the extent that such Board determines, in good faith, 
after consultation with outside legal counsel, that compliance with the 
Board's fiduciary duties would require it to do so.

     5.2  MEETINGS OF STOCKHOLDERS.  Promptly after the date hereof, each of 
Company and Parent will take all action necessary in accordance with the 
Delaware Law and its Certificate of Incorporation and Bylaws to convene the 
Company Stockholders' Meeting or the Parent Stockholders' Meeting, 
respectively, to be held as promptly as practicable, and in any event (to the 
extent permissible under applicable law) within 45 days after the declaration 
of effectiveness of the Registration Statement, for the purpose of voting 
upon this Agreement and the Merger or the issuance of shares of Parent Common 
Stock pursuant to the Merger, respectively.  Company will use its 
commercially reasonable efforts to solicit from its stockholders proxies in 
favor of the adoption and approval of this Agreement and the approval of the 
Merger and will take all other action necessary or advisable to secure the 
vote or consent of its stockholders required by the rules of Nasdaq or 
Delaware Law to obtain such approvals, except to the extent that the Board of 
Directors of Company shall have withdrawn or modified its approval of this 
Agreement or the Merger in accordance with Section 5.4(a)(ii).  Parent will 
use its commercially reasonable efforts to solicit from its stockholders 
proxies in favor of approval of issuance of shares of Parent Common Stock 
pursuant to the Merger and will take all other action necessary or advisable 
to secure the vote or consent of its stockholders required by the rules of 
Nasdaq or Delaware Law to obtain such approvals, except to the extent that 
the Board of Directors of Parent shall have withdrawn or modified its 
approval of such matters in accordance with Section 5.1(c). Company will 
consult with Parent and use its commercially reasonable efforts to hold the 
Company Stockholders' Meeting on the same day and at the same time as the 
Parent Stockholders' Meeting.

                                    -44-
<PAGE>

     5.3  CONFIDENTIALITY; ACCESS TO INFORMATION.  

          (a)  The parties acknowledge that Company and Parent have 
previously executed a Confidentiality Agreement], dated as of on or about 
September 12, 1997 (the "CONFIDENTIALITY AGREEMENT"), which Confidentiality 
Agreement will continue in full force and effect in accordance with its terms.

          (b)  ACCESS TO INFORMATION.  Each of Company and Parent will afford 
the other and the other's accountants, counsel and other representatives 
reasonable access during normal business hours to its properties, books, 
records and personnel during the period prior to the Effective Time to obtain 
all information concerning its business, including the status of product 
development efforts, properties, results of operations and personnel, as such 
other party may reasonably request. No information or knowledge obtained by 
any party hereto in any investigation pursuant to this Section 5.3 will 
affect or be deemed to modify any representation or warranty contained herein 
or the conditions to the obligations of the parties to consummate the Merger.

     5.4  NO SOLICITATION.

          (a)  OBLIGATIONS OF COMPANY.  

               (i)  From and after the date of this Agreement until the 
earlier of the Effective Time or termination of this Agreement pursuant to 
its terms Company and its subsidiaries will not, nor will they authorize or 
permit any of their respective officers, directors or employees or any 
investment banker, attorney or other advisor or representative retained by 
any of them to, directly or indirectly, (x) solicit, initiate or encourage 
the submission of any Alternative Proposal (as hereinafter defined) or (y) 
participate in any discussions or negotiations regarding, or furnish to any 
person any non-public information with respect to, or take any other action 
to facilitate any inquiries or the making of any proposal that constitutes or 
would reasonably be expected to lead to, any Alternative Proposal; PROVIDED, 
HOWEVER, that if, at any time prior to obtaining the approval of the 
stockholders of Company of this Agreement and the Merger by the requisite 
vote under applicable law (the "STOCKHOLDER APPROVAL") the Board of Directors 
of Company determines in good faith, after consultation with outside legal 
counsel, that it is necessary to do so in order to comply with its fiduciary 
duties to Company's stockholders under applicable law, Company may, in 
response to an Alternative Proposal that was unsolicited or that did not 
otherwise result from a breach of this Section 5.4(a), and subject to 
compliance with Section 5.4(a)(iii) and Section 5.4(a)(v), furnish 
information with respect to Company and participate in negotiations regarding 
such Alternative Proposal. Company and its subsidiaries will immediately 
cease any and 

                                    -45-
<PAGE>

all existing activities, discussions or negotiations with any parties 
conducted heretofore with respect to any Alternative Proposal. Without 
limiting the foregoing, it is understood that any violation of the 
restrictions set forth in the preceding two sentences by any officer, 
director or employee of Company or any of its subsidiaries or any investment 
banker, attorney or other advisor or representative of Company or any of its 
subsidiaries shall be deemed to be a breach of this Section 5.4(a) by 
Company. For purposes of this Agreement, "ALTERNATIVE PROPOSAL" means any 
inquiry, proposal or offer from any person or "group" (as defined under 
Section 13(d) of the Exchange Act and the rules and regulations thereunder) 
relating to any direct or indirect acquisition or purchase of a substantial 
amount of assets of Company or any of its subsidiaries (other than the 
purchase of Company's products in the ordinary course of business) or more 
than a 10% interest in the total outstanding voting securities of Company or 
any of its subsidiaries or any tender offer or exchange offer that if 
consummated would result in any person or "group" (as defined under Section 
13(d) of the Exchange Act and the rules and regulations thereunder) 
beneficially owning 10% or more of the total outstanding voting securities of 
Company or any of its subsidiaries or any merger, consolidation, business 
combination, sale of substantially all the assets, recapitalization, 
liquidation, dissolution or similar transaction involving Company or any of 
its subsidiaries, other than the transactions contemplated by this Agreement. 

               (ii) Neither the Board of Directors of Company nor any 
committee thereof shall (x) withdraw or modify, or propose publicly to 
withdraw or modify, in a manner adverse to Parent or Merger Sub, the approval 
or recommendation by such Board of Directors or any such committee of this 
Agreement or the Merger or (y) cause Company to enter into any letter of 
intent, agreement in principle, acquisition agreement or other similar 
agreement (an "ACQUISITION AGREEMENT") with respect to any Alternative 
Proposal.  In addition, subject to the other provisions of this Section 
5.4(a), from and after the date of this Agreement until the earlier of the 
Effective Time and termination of this Agreement pursuant to its terms, 
Company and its subsidiaries will not, nor will they authorize or permit any 
of their respective officers, directors or employees or any investment 
banker, attorney or other advisor or representative retained by any of them 
to, directly or indirectly,  make or authorize any public statement, 
recommendation or solicitation in support of any Alternative Proposal. 
Notwithstanding the foregoing or anything else contained in this Agreement, 
prior to obtaining the Stockholder Approval, the Board of Directors of 
Company, to the extent it determines in good faith, after consultation with 
outside legal counsel, that it is necessary to do so in order to comply with 
its fiduciary duties to Company's stockholders under applicable law, may 
withdraw or modify its approval or recommendation of this Agreement or the 
Merger (and, to the extent it does so, Company may refrain from soliciting 
proxies to secure the vote of its stockholders as may otherwise be required 
by Section 

                                    -46-
<PAGE>

5.2) or approve or recommend any Superior Proposal (as hereinafter defined), 
in each case at any time after the third business day following Parent's 
receipt of bona fide written notice (a "NOTICE OF SUPERIOR PROPOSAL") 
advising Parent that the Board of Directors of Company has received a 
Superior Proposal, specifying the material terms and conditions of the 
Superior Proposal and identifying the person making such Superior Proposal 
(it being understood that any amendment to the price or material terms of a 
Superior Proposal shall require an additional Notice of Superior Proposal and 
an additional three business day period thereafter to the extent permitted 
under applicable law); PROVIDED, that unless this Agreement is terminated 
pursuant to Section 7.1, nothing contained in this Section shall limit 
Company's obligation to hold and convene the Company Stockholders' Meeting 
(regardless of whether the recommendation of the Board of Directors of 
Company shall have been withdrawn, modified or not yet made) or to provide 
Company stockholders with material information relating to such meeting. For 
purposes of this Agreement, a "SUPERIOR PROPOSAL" means any bona fide 
proposal made by a third party to acquire, directly or indirectly, including 
pursuant to a tender offer, exchange offer, merger, consolidation, business 
combination, recapitalization, liquidation, dissolution or similar 
transaction, for consideration consisting of cash and/or securities, more 
than 50% of the voting power of Company Common Stock or all or substantially 
all the assets of Company and otherwise on terms which the Board of Directors 
of Company determines in its good faith judgment (after consultation with a 
financial advisor of nationally recognized reputation) to be more favorable 
to Company's stockholders than the Merger and for which financing, to the 
extent required, is then committed or which, in the good faith judgment of 
the Board of Directors of Company, is capable of being obtained by such third 
party.

               (iii)     In addition to the obligations of Company set forth 
in paragraphs (i) and (ii) of this Section 5.4(a), Company as promptly as 
practicable shall advise Parent orally and in writing of any request for 
non-public information which Company reasonably believes would lead to an 
Alternative Proposal or of any Alternative Proposal, the material terms and 
conditions of such request or Alternative Proposal, and the identity of the 
person making any such request, Alternative Proposal or inquiry.  Company 
will keep Parent informed in all material respects of the status and details 
(including material amendments) of any such request or Alternative Proposal.

               (iv) Nothing contained in this Section 5.4(a) or elsewhere in 
this Agreement shall prohibit Company from (x) taking and disclosing to its 
stockholders a position contemplated by Rules 14d-9 and 14e-2(a) promulgated 
under the Exchange Act or (y) making any disclosure to Company's stockholders 
if, in the good faith judgment of the majority of the members of the Board of 
Directors of Company, after consultation with independent legal counsel, 
failure to so disclose 

                                    -47-
<PAGE>

would be inconsistent with applicable laws; PROVIDED that none of Company nor 
its Board of Directors nor any committee thereof shall, except in accordance 
with the provisions of Section 5.4(a)(ii), withdraw or modify, or publicly 
propose to withdraw or modify, its position with respect to this Agreement or 
the Merger or approve or recommend, or propose to approve or recommend, an 
Alternative Proposal.

               (v)  Notwithstanding anything to the contrary in this Section 
5.4(a), Company will not provide any non-public information to a third party 
unless: (x) Company provides such non-public information pursuant to a 
nondisclosure agreement with terms regarding the protection of confidential 
information at least as restrictive as such terms in the Confidentiality 
Agreement; and (y) such non-public information has been previously or is 
contemporaneously delivered to Parent.

          (b)  OBLIGATIONS OF PARENT.  From and after the date of this 
Agreement until the earlier of the Effective Time or termination of this 
Agreement pursuant to its terms, Parent and its subsidiaries will not, nor 
will they authorize or permit any of their respective officers, directors or 
employees or any investment banker, attorney or other advisor or 
representative retained by any of them to, directly or indirectly,  (x) 
solicit, initiate or encourage the submission of any Parent Proposal (as 
hereinafter defined) or (y) participate in any discussions or negotiations 
regarding, or furnish to any person any non-public information with respect 
to, or take any other action to facilitate any inquiries or the making of any 
proposal that constitutes or would reasonably be expected to lead to, any 
Parent Proposal; PROVIDED, HOWEVER, that if the Board of Directors of Parent 
determines in good faith, after consultation with outside legal counsel, that 
it is necessary to do so in order to comply with its fiduciary duties to 
Parent's stockholders under applicable law, Parent may, in response to a 
Parent Proposal that was unsolicited or that did not otherwise result from a 
breach of this Section 5.4(b), furnish information with respect to Parent and 
participate in negotiations regarding such Parent Proposal. Parent and its 
subsidiaries will immediately cease any and all existing activities, 
discussions or negotiations with any parties conducted heretofore with 
respect to any Parent Proposal.  In addition, nothing contained in this 
Section 5.4(b) or elsewhere in this Agreement shall prohibit Parent from (x) 
taking and disclosing to its stockholders a position contemplated by Rules 
14d-9 and 14e-2(a) promulgated under the Exchange Act or (y) making any 
disclosure to Parent's stockholders if, in the good faith judgment of the 
majority of the members of the Board of Directors of Parent, after 
consultation with independent legal counsel, failure to so disclose would be 
inconsistent with applicable laws.  Without limiting the foregoing, it is 
understood that any violation of the restrictions set forth in the first two 
sentences of this Section 5.4(b) by any officer, director or employee of 
Parent or any of its subsidiaries or any investment banker, attorney or other 
advisor or representative of Parent or any of its 

                                    -48-
<PAGE>

subsidiaries shall be deemed to be a breach of this Section 5.4(b) by Parent. 
 For purposes of this Agreement, "PARENT PROPOSAL" means any proposal made by 
a third party to consummate any of the following transactions or series of 
related transactions (other than the Merger):  (i) a merger, consolidation, 
business combination, recapitalization, liquidation, dissolution or similar 
transaction involving Parent pursuant to which the stockholders of Parent 
immediately preceding such transaction or series of related transactions hold 
less than 60% of the equity interests in the surviving or resulting entity of 
such transaction or transactions (without respect to any overlap in the 
companies' stockholder bases); (ii) a sale or other disposition by Parent of 
assets (excluding inventory and used equipment sold in the ordinary course of 
business) representing in excess of 40% of the fair market value of Parent's 
business immediately prior to such sale; or (iii) the acquisition by any 
person or group (including by way of a tender offer or an exchange offer or 
issuance by Parent), directly or indirectly, of beneficial ownership or a 
right to acquire beneficial ownership of 40% or more of the then outstanding 
shares of capital stock of Parent.

     5.5  PUBLIC DISCLOSURE.  Parent and Company will consult with each 
other, and to the extent practicable, agree, before issuing any press release 
or otherwise making any public statement with respect to the Merger, this 
Agreement or an Alternative Proposal and will not issue any such press 
release or make any such public statement prior to such consultation, except 
as may be required by law or any listing agreement with a national securities 
exchange.  The parties have agreed to the text of the joint press release 
announcing the signing of this Agreement.

     5.6  REASONABLE EFFORTS; NOTIFICATION.

          (a)  Upon the terms and subject to the conditions set forth in this 
Agreement, each of the parties agrees to use reasonable efforts to take, or 
cause to be taken, such actions, and to do, or cause to be done, and to 
assist and cooperate with the other parties in doing, such things as are 
necessary, proper or advisable to consummate and make effective, as 
expeditiously as reasonably practicable, the Merger and the other 
transactions contemplated by this Agreement, including using reasonable 
efforts to accomplish the following: (i) the taking of such reasonable acts 
as are necessary to cause the conditions precedent set forth in Article VI to 
be satisfied, (ii) the obtaining of all necessary actions or nonactions, 
waivers, consents, approvals, orders and authorizations from Governmental 
Entities and the making of all necessary registrations, declarations and 
filings (including registrations, declarations and filings with Governmental 
Entities, if any) and the taking of such reasonable steps as may be necessary 
to avoid any suit, claim, action, investigation or proceeding by any 
Governmental Entity, (iii) the obtaining of all necessary consents, approvals 
or waivers from third parties, (iv) the defending of any suits, claims, 
actions, investigations or proceedings, whether judicial or administrative, 

                                    -49-
<PAGE>

challenging this Agreement or the consummation of the transactions 
contemplated hereby, including seeking to have any stay or temporary 
restraining order entered by any court or other Governmental Entity vacated 
or reversed and (v) the execution or delivery of any additional instruments 
necessary to consummate the transactions contemplated by, and to fully carry 
out the purposes of, this Agreement.  In connection with and without limiting 
the foregoing, Company and its Board of Directors shall, if any state 
takeover statute or similar statute or regulation is or becomes applicable to 
the Merger, this Agreement or any of the transactions contemplated by this 
Agreement, use reasonable efforts to ensure that the Merger and the other 
transactions contemplated by this Agreement may be consummated as promptly as 
practicable on the terms contemplated by this Agreement and otherwise to 
minimize the effect of such statute or regulation on the Merger, this 
Agreement and the transactions contemplated hereby.  Notwithstanding anything 
herein to the contrary, nothing in this Agreement shall be deemed to require 
Parent or Company or any subsidiary or affiliate thereof to agree to any 
divestiture by itself or any of its affiliates of shares of capital stock or 
of any business, assets or property, or the imposition of any material 
limitation on the ability of any of them to conduct their businesses or to 
own or exercise control of such assets, properties and stock.

          (b)  Company shall give prompt notice to Parent of any 
representation or warranty made by it contained in this Agreement becoming 
untrue or inaccurate, or any failure of Company to comply with or satisfy in 
any material respect any covenant, condition or agreement to be complied with 
or satisfied by it under this Agreement, in each case, such that the 
conditions set forth in Section 6.3(a) or 6.3(b) would not be satisfied, 
PROVIDED, HOWEVER, that no such notification shall affect the 
representations, warranties, covenants or agreements of the parties or the 
conditions to the obligations of the parties under this Agreement.

          (c)  Parent shall give prompt notice to Company of any 
representation or warranty made by it or Merger Sub contained in this 
Agreement becoming untrue or inaccurate, or any failure of Parent or Merger 
Sub to comply with or satisfy in any material respect any covenant, condition 
or agreement to be complied with or satisfied by it under this Agreement, in 
each case, such that the conditions set forth in Section 6.2(a) or 6.2(b) 
would not be satisfied, PROVIDED, HOWEVER, that no such notification shall 
affect the representations, warranties, covenants or agreements of the 
parties or the conditions to the obligations of the parties under this 
Agreement.

     5.7  THIRD PARTY CONSENTS.  As soon as reasonably practicable following 
the date hereof, Parent and Company will each use its commercially reasonable 
efforts to obtain any material consents, waivers and approvals under any of 
its or its subsidiaries' respective agreements, contracts, licenses or leases 
required to be 

                                    -50-
<PAGE>

obtained in connection with the consummation of the transactions contemplated 
hereby.

     5.8  STOCK OPTIONS AND EMPLOYEE BENEFITS.  

          (a)  At the Effective Time, each outstanding option to purchase 
shares of Company Common Stock (each a "COMPANY STOCK OPTION") under the 
Company Stock Option Plans, whether or not exercisable, will be assumed by 
Parent.  Each Company Stock Option so assumed by Parent under this Agreement 
will continue to have, and be subject to, the same terms and conditions set 
forth in the applicable Company Stock Option Plan immediately prior to the 
Effective Time (including, without limitation, any repurchase rights or 
vesting provisions), except that (i) each Company Stock Option will be 
exercisable (or will become exercisable in accordance with its terms) for 
that number of whole shares of Parent Common Stock equal to the product of 
the number of shares of Company Common Stock that were issuable upon exercise 
of such Company Stock Option immediately prior to the Effective Time 
multiplied by the Exchange Ratio, rounded down to the nearest whole number of 
shares of Parent Common Stock and (ii) the per share exercise price for the 
shares of Parent Common Stock issuable upon exercise of such assumed Company 
Stock Option will be equal to the quotient determined by dividing the 
exercise price per share of Company Common Stock at which such Company Stock 
Option was exercisable immediately prior to the Effective Time by the 
Exchange Ratio, rounded up to the nearest whole cent. 

          (b)  It is intended that Company Stock Options assumed by Parent 
shall qualify following the Effective Time as incentive stock options as 
defined in Section 422 of the Code to the extent Company Stock Options 
qualified as incentive stock options immediately prior to the Effective Time 
and the provisions of this Section 5.8 shall be applied consistent with such 
intent.

          (c)  Rights outstanding under the ESPP shall be treated in a manner 
reasonably acceptable to Parent and Company, provided that in no event shall 
any such treatment interfere with Parent's ability to account for the Merger 
as a pooling of interests. 

          (d)  Parent will reserve sufficient shares of Parent Common Stock 
for issuance under Section 5.8 and under Section 1.6(c) hereof.

     5.9  FORM S-8.  Parent agrees to file a registration statement on Form 
S-8 for the shares of Parent Common Stock issuable with respect to assumed 
Company Stock Options within five days after the Effective Time and shall use 
its commercially reasonable efforts to maintain the effectiveness of such 
registration 

                                    -51-
<PAGE>

statement thereafter for as long as any of such options or other rights 
remain outstanding. 
 
     5.10 INDEMNIFICATION.  

          (a)  From and after the Effective Time, Parent will fulfill and 
honor and will cause the Surviving Corporation to fulfill and honor in all 
respects the obligations of Company pursuant to any indemnification 
agreements between Company and its directors and officers as of the Effective 
Time (the "INDEMNIFIED PARTIES") and any  indemnification provisions under 
Company's Certificate of Incorporation or Bylaws as in effect on the date 
hereof. The Certificate of Incorporation and By-laws of the Surviving 
Corporation will contain provisions with respect to exculpation and 
indemnification that are at least as favorable to the Indemnified Parties as 
those contained in the Certificate of Incorporation and Bylaws of Company as 
in effect on the date hereof, which provisions will not be amended, repealed 
or otherwise modified for a period of six years from the Effective Time in 
any manner that would adversely affect the rights thereunder of individuals 
who, immediately prior to the Effective Time, were directors, officers, 
employees or agents of Company, unless such modification is required by law.

          (b)  For a period of six years after the Effective Time, Parent 
will maintain or cause the Surviving Corporation to maintain in effect, if 
available, directors' and officers' liability insurance covering those 
persons who are currently covered by Company's directors' and officers' 
liability insurance policy on terms comparable to those applicable to the 
current directors and officers of  Company; PROVIDED, HOWEVER, that in no 
event will Parent or the Surviving Corporation be required to expend in 
excess of 150% of the annual premium currently paid by Company for such 
coverage (or such coverage as is available for such 150% of such annual 
premium). 

     5.11 NASDAQ LISTING.  Parent agrees to use its commercially reasonable 
efforts to cause to be authorized for listing on Nasdaq prior to the 
Effective Time the shares of Parent Common Stock issuable, and those required 
to be reserved for issuance, in connection with the Merger, upon official 
notice of  issuance.

     5.12 AFFILIATE AGREEMENTS.  

          (a)  Set forth on the Company Schedules is a list of those persons 
who may be deemed to be, in Company's reasonable judgment, affiliates of 
Company within the meaning of Rule 145 promulgated under the Securities Act 
(each a "COMPANY AFFILIATE").  Company will provide Parent with such 
information and documents as Parent reasonably requests for purposes of 
reviewing such list.  

                                    -52-
<PAGE>

Company will use its commercially reasonable efforts to deliver or cause to 
be delivered to Parent, as promptly as practicable on or following the date 
hereof, from each Company Affiliate an executed affiliate agreement in 
substantially the form attached hereto as EXHIBIT B-1 (the "COMPANY AFFILIATE 
AGREEMENT"), each of which will be in full force and effect as of the 
Effective Time.  Parent will be entitled to place appropriate legends on the 
certificates evidencing any Parent Common Stock to be received by a Company 
Affiliate pursuant to the terms of this Agreement, and to issue appropriate 
stop transfer instructions to the transfer agent for the Parent Common Stock, 
consistent with the terms of the Company Affiliate Agreement.

          (b)  Set forth on the Parent Schedules is a list of those persons 
who may be deemed to be, in Parent's reasonable judgment, affiliates of 
Parent (each a "PARENT AFFILIATE"). Parent will provide Company with such 
information and documents as Parent reasonably requests for purposes of 
reviewing such list.  Parent will use its commercially reasonable efforts to 
deliver or cause to be delivered to Company, as promptly as practicable on or 
following the date hereof, from each Parent Affiliate an executed affiliate 
agreement in substantially the form attached hereto as EXHIBIT B-2 (the 
"PARENT AFFILIATE AGREEMENT"), each of which will be in full force and effect 
as of the Effective Time. 

     5.13 REGULATORY FILINGS; REASONABLE EFFORTS.  As soon as may be 
reasonably practicable, Company and Parent each shall file with the United 
States Federal Trade Commission (the "FTC") and the Antitrust Division of the 
United States Department of Justice ("DOJ") Notification and Report Forms 
relating to the transactions contemplated herein as required by the HSR Act, 
as well as comparable pre-merger notification forms required by the merger 
notification or control laws and regulations of any applicable jurisdiction, 
as reasonably agreed to by the parties. Company and Parent each shall 
promptly (a) supply the other with any information which may be required in 
order to effectuate such filings and (b) supply any additional information 
which reasonably may be required by the FTC, the DOJ or the competition or 
merger control authorities of any other jurisdiction and which the parties 
may reasonably deem appropriate. 

     5.14 BOARD OF DIRECTORS OF PARENT FOLLOWING THE MERGER.  The Board of 
Directors of Parent will take all actions within its power to cause the Board 
of Directors of Parent, effective no later than one day following the 
Effective Time, to consist of five persons, one of whom shall be Leslie G. 
Denend (who shall retain his present position as a Class II director), one of 
whom will be Harry J. Saal (who shall be offered a position as a Class II 
director) and the remaining three of whom shall have served on the Board of 
Directors of Parent immediately prior to the Effective Time.  If, prior to 
the Effective Time, any of the foregoing designees shall decline or be unable 
to serve as a director, Company (if such person is Leslie Denend or Harry 

                                    -53-
<PAGE>

Saal) or Parent (in all other cases) shall designate another person to serve 
in such person's stead, which person shall be reasonably acceptable to the 
other party. 

                             ARTICLE VI
                      CONDITIONS TO THE MERGER

     6.1  CONDITIONS TO OBLIGATIONS OF EACH PARTY TO EFFECT THE MERGER.  The 
respective obligations of each party to this Agreement to effect the Merger 
shall be subject to the satisfaction at or prior to the Closing Date of the 
following conditions:

          (a)  COMPANY STOCKHOLDER APPROVAL.  This Agreement shall have been 
approved and adopted, and the Merger shall have been duly approved, by the 
requisite vote under applicable law, by the stockholders of Company.

          (b)  PARENT STOCKHOLDER APPROVAL.  The issuance of shares of Parent 
Common Stock pursuant to the Merger shall have been duly approved by the 
requisite vote under applicable law by the stockholders of Parent.

          (c)  REGISTRATION STATEMENT EFFECTIVE; PROXY STATEMENT. The SEC 
shall have declared the Registration Statement effective. No stop order 
suspending the effectiveness of the Registration Statement or any part 
thereof shall have been issued and no proceeding for that purpose, and no 
similar proceeding in respect of the Joint Proxy Statement/Prospectus, shall 
have been initiated or threatened in writing by the SEC.

          (d)  NO ORDER; HSR ACT.  No Governmental Entity shall have enacted, 
issued, promulgated, enforced or entered any statute, rule, regulation, 
executive order, decree, injunction or other order (whether temporary, 
preliminary or permanent) which is in effect and which has the effect of 
making the Merger illegal or otherwise prohibiting consummation of the 
Merger.  All waiting periods, if any, under the HSR Act relating to the 
transactions contemplated hereby will have expired or terminated early and 
all material foreign antitrust approvals required to be obtained prior to the 
Merger in connection with the transactions contemplated hereby shall have 
been obtained.

          (e)  TAX OPINIONS.  Parent and Company shall each have received 
written opinions from their respective tax counsel (Wilson Sonsini Goodrich & 
Rosati, Professional Corporation, and Gray Cary Ware & Freidenrich, a 
Professional Corporation, respectively), in form and substance reasonably 
satisfactory to them, to the effect that the Merger will constitute a 
reorganization within the meaning of Section 368(a) of the Code and such 
opinions shall not have been withdrawn; 

                                    -54-
<PAGE>

PROVIDED, HOWEVER, that if the counsel to either Parent or Company does not 
render such opinion, this condition shall nonetheless be deemed to be 
satisfied with respect to such party if counsel to the other party renders 
such opinion to such party.  The parties to this Agreement agree to make and 
use their commercially reasonable efforts to cause their shareholders to make 
such reasonable representations as requested by such counsel for the purpose 
of rendering such opinions.

          (f)  OPINION OF ACCOUNTANTS.  Each of Parent and Company shall have 
received letters from each of Coopers & Lybrand L.L.P.  and Arthur Andersen 
LLP, respectively, dated within two (2) business days prior to the Effective 
Time, regarding that firm's concurrence with Parent's management's and 
Company's management's conclusions as to the appropriateness of pooling of 
interest accounting for the Merger under Accounting Principles Board Opinion 
No. 16, if the Merger is consummated in accordance with this Agreement. 

          (g)  NASDAQ LISTING.  The shares of Parent Common Stock to be 
issued to Company stockholders pursuant to the Merger shall have been 
approved for listing on Nasdaq upon notice of issuance.

     6.2  ADDITIONAL CONDITIONS TO OBLIGATIONS OF COMPANY.  The obligation of 
Company to consummate and effect the Merger shall be subject to the 
satisfaction at or prior to the Closing Date of each of the following 
conditions, any of which may be waived, in writing, exclusively by Company:

          (a)  REPRESENTATIONS AND WARRANTIES. The representations and 
warranties of Parent and Merger Sub contained in this Agreement (i) shall 
have been true and correct in all material respects as of the date of this 
Agreement and (ii) shall be true and correct in all material respects on and 
as of the Closing Date except for changes contemplated by this Agreement and 
except for those representations and warranties which address matters only as 
of a particular date (which shall have been true and correct as of such 
particular date), with the same force and effect as if made on and as of the 
Closing Date, except, with regard to the foregoing clauses (i) and (ii), in 
such cases (other than the representations in Sections 3.2, 3.3, 3.16 and 
3.18) where the failure to be so true and correct would not have or be 
reasonably likely to have a Material Adverse Effect on Parent.  Company shall 
have received a certificate with respect to the foregoing signed on behalf of 
Parent by an authorized officer of Parent.

          (b)  AGREEMENTS AND COVENANTS.  Parent and Merger Sub shall have 
performed or complied in all material respects with all agreements and 
covenants required by this Agreement to be performed or complied with by them 
on or prior to 

                                    -55-
<PAGE>

the Closing Date, and Company shall have received a certificate to such 
effect signed on behalf of Parent by an authorized officer of Parent.

          (c)  MATERIAL ADVERSE EFFECT.  No Material Adverse Effect with 
respect to Parent shall have occurred since the date of this Agreement or be 
reasonably likely to occur.

          (d)  AFFILIATE AGREEMENTS.  Each of the Parent Affiliates shall 
have entered into the Parent Affiliate Agreement and each of such agreements 
will be in full force and effect as of the Effective Time.

          (e)  CERTAIN ACTIONS.  The Board of Directors of Parent shall have 
complied in all material respects with the provisions of Section 5.14 hereof.

          (f)  CONSENTS.  Parent shall have obtained all consents, waivers 
and approvals required in connection with the consummation of the 
transactions contemplated hereby in connection with the agreements, 
contracts, licenses or leases set forth on Section 6.2 of the Company 
Schedules.

     6.3  ADDITIONAL CONDITIONS TO THE OBLIGATIONS OF PARENT AND MERGER SUB.  
The obligations of Parent and Merger Sub to consummate and effect the Merger 
shall be subject to the satisfaction at or prior to the Closing Date of each 
of the following conditions, any of which may be waived, in writing, 
exclusively by Parent:

          (a)  REPRESENTATIONS AND WARRANTIES. The representations and 
warranties of Company contained in this Agreement (i) shall have been true 
and correct in all material respects as of the date of this Agreement and 
(ii) shall be true and correct in all material respects on and as of the 
Closing Date except for changes contemplated by this Agreement and except for 
those representations and warranties which address matters only as of a 
particular date (which shall have been true and correct as of such particular 
date), with the same force and effect as if made on and as of the Closing 
Date, except, with regard to the foregoing clauses (i) and (ii), in such 
cases (other than the representations in Sections 2.2, 2.3, 2.20 and 2.21) 
where the failure to be so true and correct would not have or be reasonably 
likely to have a Material Adverse Effect on Company.  Parent shall have 
received a certificate with respect to the foregoing signed on behalf of 
Company by an authorized officer of Company.

          (b)  AGREEMENTS AND COVENANTS.  Company shall have performed or 
complied in all material respects with all agreements and covenants required 
by this Agreement to be performed or complied with by it at or prior to the 
Closing Date, and Parent shall have received a certificate to such effect 
signed on behalf of 

                                    -56-
<PAGE>

Company by the Chief Executive Officer and the Chief Financial Officer of 
Company.

          (c)  MATERIAL ADVERSE EFFECT.  No Material Adverse Effect with 
respect to Company shall have occurred since the date of this Agreement or be 
reasonably likely to occur.

          (d)  AFFILIATE AGREEMENTS.  Each of the Company Affiliates shall 
have entered into the Company Affiliate Agreement and each of such agreements 
will be in full force and effect as of the Effective Time.

          (e)  CONSENTS.  Company shall have obtained all consents, waivers 
and approvals required in connection with the consummation of the 
transactions contemplated hereby in connection with the agreements, 
contracts, licenses or leases set forth on Section 6.3(e) of the Parent 
Schedules.

                             ARTICLE VII
                  TERMINATION, AMENDMENT AND WAIVER

     7.1  TERMINATION.  This Agreement may be terminated at any time prior to 
the Effective Time, whether before or after the requisite approvals of the 
stockholders of Company or Parent:

          (a)  by mutual written consent duly authorized by the Boards of 
Directors of Parent and Company;

          (b)  by either Company or Parent if the Merger shall not have been 
consummated by March 31, 1998 for any reason; PROVIDED, HOWEVER, that the 
right to terminate this Agreement under this Section 7.1(b) shall not be 
available to any party whose action or failure to act has been a principal 
cause of or resulted in the failure of the Merger to occur on or before such 
date and such action or failure to act constitutes a breach of this Agreement;

          (c)  by either Company or Parent if a Governmental Entity shall 
have issued an order, decree or ruling or taken any other action, in any case 
having the effect of permanently restraining, enjoining or otherwise 
prohibiting the Merger, which order, decree, ruling or other action is final 
and nonappealable;

          (d)  by either Company or Parent if the required approvals of the 
stockholders of Company contemplated by this Agreement shall not have been 
obtained by reason of the failure to obtain the required vote at a meeting of 
Company 

                                    -57-
<PAGE>

stockholders duly convened therefor or at any adjournment thereof (PROVIDED 
that the right to terminate this Agreement under this Section 7.1(d) shall 
not be available to Company where the failure to obtain Company stockholder 
approval shall have been caused by the action or failure to act of Company 
and such action or failure to act constitutes a breach by Company of this 
Agreement);

          (e)  by either Company or Parent if the required approval of the 
stockholders of Parent contemplated by this Agreement shall not have been 
obtained by reason of the failure to obtain the required vote at a meeting of 
Parent stockholders duly convened therefor or at any adjournment thereof 
(PROVIDED that the right to terminate this Agreement under this Section 
7.1(e) shall not be available to Parent where the failure to obtain Parent 
stockholder approval shall have been caused by the action or failure to act 
of Parent and such action or failure to act constitutes a material breach by 
Parent of this Agreement);

          (f)  by Parent if (i) the Board of Directors of Company or any 
committee thereof shall have withdrawn or modified in a manner adverse to 
Parent its approval or recommendation of the Merger or this Agreement, (ii) 
Company shall have failed to include in the Joint/Proxy Statement/Prospectus 
the recommendation of the Board of Directors of Company in favor of approval 
of the Merger and this Agreement, (iii) the Board of Directors of Company 
shall have failed to reconfirm such recommendation within ten business days 
after a written request to do so at any time following the public 
announcement or disclosure of an Alternative Proposal (iv)  the Board of 
Directors of Company or any committee thereof shall have recommended any 
Alternative Proposal or (v)  the Board of Directors of Company or any 
committee thereof shall have resolved to do any of the foregoing; 

          (g)  by Company if (i) the Board of Directors of Parent or any 
committee thereof shall have withdrawn or modified in a manner adverse to 
Company its recommendation of approval of the issuance of shares of Parent 
Common Stock pursuant to the Merger, (ii) Parent shall have failed to include 
in the Joint/Proxy Statement/Prospectus the recommendation of the Board of 
Directors of Parent in favor of approval of the issuance of shares of Parent 
Common Stock pursuant to the Merger, (iii) the Board of Directors of Parent 
shall have failed to reconfirm such recommendation within ten business days 
after a written request to do so at any time following the public 
announcement or disclosure of a Parent Contingent Proposal (as defined in 
Section 7.3(d)) or (iv)  the Board of Directors of Parent or any committee 
thereof shall have resolved to do any of the foregoing; 

          (h)  by Company at any time prior to the approval of the Merger by 
Company's stockholders and following the earlier of (i) three days following 
the date the Registration Statement is declared effective pursuant to the 
Securities Act 

                                    -58-
<PAGE>

by the SEC or (ii) sixty days following the date hereof, if the Board of 
Directors of Company recommends a Superior Proposal to the stockholders of 
Company; 

          (i)  by Company, upon a breach of any representation, warranty, 
covenant or agreement on the part of Parent set forth in this Agreement, or 
if any representation or warranty of Parent shall have become untrue, in 
either case such that the conditions set forth in Section 6.2(a) or Section 
6.2(b) would not be satisfied as of the time of such breach or as of the time 
such representation or warranty shall have become untrue, PROVIDED that 
Company may not terminate this Agreement under this Section 7.1(i) if such 
inaccuracy in Parent's representations and warranties or breach by Parent is 
curable by Parent through the exercise of its commercially reasonable efforts 
prior to March 31, 1998, provided Parent continues to exercise commercially 
reasonable efforts to cure such breach (it being understood that Company may 
not terminate this Agreement pursuant to this paragraph (i) if it shall have 
materially breached this Agreement or if such breach by Parent is cured prior 
to March 31, 1998); or

          (j)  by Parent, upon a breach of any representation, warranty, 
covenant or agreement on the part of Company set forth in this Agreement, or 
if any representation or warranty of Company shall have become untrue, in 
either case such that the conditions set forth in Section 6.3(a) or Section 
6.3(b) would not be satisfied as of the time of such breach or as of the time 
such representation or warranty shall have become untrue, PROVIDED, that 
Parent may not terminate this Agreement under this Section 7.1(j) if such 
inaccuracy in Company's representations and warranties or breach by Company 
is curable by Company through the exercise of its commercially reasonable 
efforts prior to March 31, 1998, provided Company continues to exercise 
commercially reasonable efforts to cure such breach (it being understood that 
Parent may not terminate this Agreement pursuant to this paragraph (j) if it 
shall have materially breached this Agreement or if such breach by Company is 
cured prior to March 31, 1998).

     7.2  NOTICE OF TERMINATION; EFFECT OF TERMINATION.  Any termination of 
this Agreement under Section 7.1 above will be effective immediately upon the 
delivery of written notice of the terminating party to the other parties 
hereto. In the event of the termination of this Agreement as provided in 
Section 7.1, this Agreement shall be of no further force or effect, except 
(i) as set forth in this Section 7.2, Section 7.3 and Article 8 
(miscellaneous), each of which shall survive the termination of this 
Agreement, and (ii) nothing herein shall relieve any party from liability for 
any willful breach of this Agreement.  No termination of this Agreement shall 
affect the obligations of the parties contained in the Confidentiality 
Agreement, all of which obligations shall survive termination of this 
Agreement in accordance with their terms.

                                    -59-

<PAGE>

     7.3  FEES AND EXPENSES.

          (a)  GENERAL.  Except as set forth in this Section 7.3, all fees 
and expenses incurred in connection with this Agreement and the transactions 
contemplated hereby shall be paid by the party incurring such expenses 
whether or not the Merger is consummated; PROVIDED, HOWEVER, that Parent and 
Company shall share equally all fees and expenses, other than attorneys' and 
accountants fees and expenses, incurred in relation to the printing and 
filing (with the SEC) of the Joint Proxy Statement/Prospectus (including any 
preliminary materials related thereto) and the Registration Statement 
(including financial statements and exhibits) and any amendments or 
supplements thereto.

          (b)  COMPANY PAYMENTS.  In the event that this Agreement is 
terminated by Parent pursuant to Section 7.1(f) or Company pursuant to 
Section 7.1(h), Company shall promptly, but in no event later than two days 
after the date of such termination, pay Parent a fee equal to $30 million in 
immediately available funds (the "COMPANY TERMINATION FEE").  If this 
Agreement shall be terminated by any party hereto pursuant to Section 7.1(d) 
and prior to such termination an Alternative Proposal shall have been 
publicly announced or otherwise publicly disclosed, and prior to the date 12 
months following the date of the termination of this Agreement either (i) a 
Company Acquisition (as hereinafter defined) shall be consummated or (ii) 
Company shall enter into an Acquisition Agreement providing for a Company 
Acquisition, then Company shall pay to Parent the Company Termination Fee in 
immediately available funds in the case of clause (i) concurrently with the 
consummation of such Company Acquisition or in the case of clause (ii) one 
half of the Company Termination Fee concurrently with the execution of such 
Acquisition Agreement and the remaining half of the Company Termination Fee 
upon the consummation of any Company Acquisition occurring with twelve months 
following such execution.  Company acknowledges that the agreements contained 
in this Section 7.3(b) are an integral part of the transactions contemplated 
by this Agreement, and that, without these agreements, Parent would not enter 
into this Agreement; accordingly, if Company fails promptly to pay the 
amounts due pursuant to this Section 7.3(b), and, in order to obtain such 
payment, Parent commences a suit which results in a judgment against Company 
for the amounts set forth in this Section 7.3(b) and such judgment is not set 
aside or reversed, Company shall pay to Parent its reasonable costs and 
expenses (including attorneys' fees and expenses) in connection with such 
suit, together with interest on the amounts set forth in this Section 7.3(b) 
at the prime rate of The Chase Manhattan Bank in effect on the date such 
payment was required to be made. "COMPANY ACQUISITION" shall mean any of the 
following transactions or series of related transactions:  (i) a merger, 
consolidation, business combination, recapitalization, liquidation, 
dissolution or similar transaction involving Company pursuant to which the 
stockholders of 

                                    -60-
<PAGE>

Company immediately preceding such transaction or series of related 
transactions hold less than 60% of the equity interests in the surviving or 
resulting entity of such transaction or transactions (without respect to any 
overlap in the companies' stockholder bases) (other than the transactions 
contemplated by this Agreement); (ii) a sale or other disposition by Company 
of assets (excluding inventory and used equipment sold in the ordinary course 
of business) representing in excess of 40% of the fair market value of 
Company's business immediately prior to such sale; or (iii) the acquisition 
by any person or group (including by way of a tender offer or an exchange 
offer or issuance by Company), directly or indirectly, of beneficial 
ownership or a right to acquire beneficial ownership of 40% or more of the 
then outstanding shares of capital stock of Company.

          (c)  Payment of the fees described in Section 7.3(b) above shall 
not be in lieu of damages incurred in the event of material and willful 
breach of this Agreement.

          (d)  PARENT PAYMENTS.  In the event that this Agreement is 
terminated by Company pursuant to Section 7.1(g), Parent shall promptly, but 
in no event later than two days after the date of such termination, pay 
Company a fee equal to $30 million in immediately available funds (the 
"PARENT TERMINATION FEE").  If this Agreement shall be terminated by any 
party hereto pursuant to Section 7.1(e) and prior to the time of the 
occurrence of the event entitling such party to terminate this Agreement 
pursuant to such provision a Parent Contingent Proposal shall have been 
publicly announced or otherwise publicly disclosed, and prior to the date 12 
months following the date of the termination of this Agreement either (i) the 
transaction contemplated by such Parent Contingent Proposal shall be 
consummated or (ii) Parent shall enter into a written agreement providing for 
the consummation of the transaction contemplated by such Parent Contingent 
Proposal, then Parent shall pay to Company the Parent Termination Fee in 
immediately available funds, in the case of clause (i) concurrently with the 
consummation of the transaction contemplated by such Parent Contingent 
Proposal and in the case of clause (ii) one half of the Parent Termination 
Fee concurrently with the execution of such agreement and the remaining half 
of the Parent Termination Fee upon the consummation of the transaction 
contemplated by such agreement. Parent acknowledges that the agreements 
contained in this Section 7.3(d) are an integral part of the transactions 
contemplated by this Agreement, and that, without these agreements, Company 
would not enter into this Agreement; accordingly, if Parent fails promptly to 
pay the amounts due pursuant to this Section 7.3(d), and, in order to obtain 
such payment, Company commences a suit which results in a judgment against 
Parent for the amounts set forth in this Section 7.3(d) and such judgment is 
not set aside or reversed, Parent shall pay to Company its reasonable costs 
and expenses (including attorneys' fees and expenses) in connection with such 
suit, together with interest on 

                                    -61-
<PAGE>

the amounts set forth in this Section 7.3(d) at the prime rate of The Chase 
Manhattan Bank in effect on the date such payment was required to be made.  
Payment of the fees described in this Section 7.3(d) shall not be in lieu of 
damages incurred in the event of material and willful breach of this 
Agreement.  "PARENT CONTINGENT PROPOSAL" shall mean a Parent Proposal, which 
proposal is and is publicly disclosed to be contingent upon the issuance of 
shares of Parent Common Stock pursuant to the Merger not being approved by 
the stockholders of Parent or the Merger otherwise not being consummated.  

     7.4  AMENDMENT.  Subject to applicable law, this Agreement may be 
amended by the parties hereto at any time by execution of an instrument in 
writing signed on behalf of each of Parent and Company.

     7.5  EXTENSION; WAIVER.  At any time prior to the Effective Time any 
party hereto 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 
made to such party contained herein or in any document delivered pursuant 
hereto and (iii) waive compliance with any of the agreements or conditions 
for the benefit of such party 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 an instrument in writing signed on behalf of such party.  Delay in 
exercising any right under this Agreement shall not constitute a waiver of 
such right.

                            ARTICLE VIII
                         GENERAL PROVISIONS

     8.1  NON-SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The 
representations and warranties of Company, Parent and Merger Sub contained in 
this Agreement shall terminate at the Effective Time, and only the covenants 
that by their terms survive the Effective Time (such as those set forth in 
Section 5.10) shall survive the Effective Time.

     8.2  NOTICES.  All notices and other communications hereunder shall be 
in writing and shall be deemed given if delivered personally or by commercial 
delivery service, or sent via telecopy (receipt confirmed) to the parties at 
the following addresses or telecopy numbers (or at such other address or 
telecopy numbers for a party as shall be specified by like notice):

                                    -62-
<PAGE>

          (a)  if to Parent or Merger Sub, to:

               McAfee Associates, Inc.
               2710 Walsh Avenue 
               Santa Clara, California  95051-0963
               Attention: President
               Telephone No.: (408) 988-3832
               Telecopy No.:  (408) 988-6054

               with a copy to:

               Wilson Sonsini Goodrich & Rosati, P.C.
               650 Page Mill Road
               Palo Alto, California 94304-1050
               Attention:  Jeff Saper, Esq.
                           Marty Korman, Esq. 
               Telephone No.:  (650) 493-9300
               Telecopy No.:   (650) 493-6811

          (b)  if to Company, to:

               Network General Corporation
               4200 Bohannon Drive
               Menlo Park, California  94025
               Attention:  President
               Telephone No.:  (650) 473-2000
               Telecopy No.:   (650) 321-0878

               with a copy to:
               Gray Cary Ware & Freidenrich
               A Professional Corporation
               400 Hamilton Avenue
               Palo Alto, California  94301-1825
               Attention:  Rod Howard, Esq.
               Telephone No.:  (650) 328-6561
               Telecopy No.:   (650) 327-3699

                                    -63-
<PAGE>

     8.3  INTERPRETATION; KNOWLEDGE.

          (a)  When a reference is made in this Agreement to Exhibits, such 
reference shall be to an Exhibit to this Agreement unless otherwise 
indicated.  When a reference is made in this Agreement to Sections, such 
reference shall be to a Section of this Agreement unless otherwise indicated. 
 The words "INCLUDE," "INCLUDES" and "INCLUDING" when used herein shall be 
deemed in each case to be followed by the words "without limitation."  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.  When reference is made herein to "THE BUSINESS OF" an 
entity, such reference shall be deemed to include the business of all direct 
and indirect subsidiaries of such entity.  Reference to the subsidiaries of 
an entity shall be deemed to include all direct and indirect subsidiaries of 
such entity.

          (b)  For purposes of this Agreement the term "KNOWLEDGE" means with 
respect to a party hereto, with respect to any matter in question, that any 
of the Chief Executive Officer, Chief Financial Officer, General Counsel, 
Director of Legal Affairs or Controller of such party, has actual knowledge 
of such matter.

          (c)  For purposes of this Agreement, the term "MATERIAL ADVERSE 
EFFECT" when used in connection with an entity means any change, event or 
effect that is materially adverse to the business, assets (including 
intangible assets), financial condition or results of operations of such 
entity and its subsidiaries taken as a whole, except for those changes, 
events and effects that (i) are directly and primarily caused by conditions 
affecting the United States economy as a whole or affecting the industry in 
which such entity competes as a whole, which conditions do not affect such 
entity in a disproportionate manner, or (ii) are directly and primarily 
related to or result from announcement or pendency of the Merger.

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

     8.5  ENTIRE AGREEMENT; THIRD PARTY BENEFICIARIES.  This Agreement and 
the documents and instruments and other agreements among the parties hereto 
as contemplated by or referred to herein, including the Company Schedules and 
the Parent Schedules (a) constitute the entire agreement among the parties 
with respect to the subject matter hereof and supersede all prior agreements 
and understandings, both written and oral, among the parties with respect to 
the subject matter hereof, it 

                                    -64-
<PAGE>

being understood that the Confidentiality Agreement shall continue in full 
force and effect until the Closing and shall survive any termination of this 
Agreement; and (b) are not intended to confer upon any other person any 
rights or remedies hereunder, except as specifically provided in Section 5.10.

     8.6  SEVERABILITY.  In the event that any provision of this Agreement or 
the application thereof, becomes or is declared by a court of competent 
jurisdiction to be illegal, void or unenforceable, the remainder of this 
Agreement will continue in full force and effect and the application of such 
provision to other persons or circumstances will be interpreted so as 
reasonably to effect the intent of the parties hereto.  The parties further 
agree to replace such void or unenforceable provision of this Agreement with 
a valid and enforceable provision that will achieve, to the extent possible, 
the economic, business and other purposes of such void or unenforceable 
provision.

     8.7  OTHER REMEDIES; SPECIFIC PERFORMANCE.  Except as otherwise provided 
herein, any and all remedies herein expressly conferred upon a party will be 
deemed cumulative with and not exclusive of any other remedy conferred 
hereby, or by law or equity upon such party, and the exercise by a party of 
any one remedy will not preclude the exercise of any other remedy.  The 
parties hereto agree that irreparable damage would occur in the event that 
any of the provisions of this Agreement were not performed in accordance with 
their specific terms or were otherwise breached.  It is accordingly agreed 
that the parties shall be entitled to seek an injunction or injunctions to 
prevent breaches of this Agreement and to enforce specifically the terms and 
provisions hereof in any court of the United States or any state having 
jurisdiction, this being in addition to any other remedy to which they are 
entitled at law or in equity.

     8.8  GOVERNING LAW.  This Agreement shall be governed by and construed 
in accordance with the laws of the State of Delaware, regardless of the laws 
that might otherwise govern under applicable principles of conflicts of law 
thereof.  Each of the parties hereto irrevocably consents to the jurisdiction 
of any state or federal court within the Northern District of California or 
the State of Delaware, in connection with any matter based upon or arising 
out of this Agreement or the matters contemplated herein, agrees that process 
may be served upon them in any manner authorized by the laws of the State of 
California or the State of Delaware, as is appropriate, for such persons and 
waives and covenants not to assert or plead any objection which they might 
otherwise have to such jurisdiction and such process.

     8.9  RULES OF CONSTRUCTION.  The parties hereto agree that they have 
been represented by counsel during the negotiation and execution of this 
Agreement and, therefore, waive the application of any law, regulation, 
holding or rule of 

                                    -65-
<PAGE>

construction providing that ambiguities in an agreement or other document 
will be construed against the party drafting such agreement or document.

     8.10 ASSIGNMENT.  No party may assign either this Agreement or any of 
its rights, interests, or obligations hereunder without the prior written 
approval of  the other parties.  Subject to the preceding sentence, this 
Agreement shall be binding upon and shall inure to the benefit of the parties 
hereto and their respective successors and permitted assigns.

     8.11 WAIVER OF JURY TRIAL.  EACH OF PARENT, COMPANY AND MERGER SUB 
HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, 
PROCEEDING OR COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) 
ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE ACTIONS OF PARENT, 
COMPANY OR MERGER SUB IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE AND 
ENFORCEMENT HEREOF.

                                *****








                                    -66-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
executed by their duly authorized respective officers as of the date first 
written above.

                         McAFEE ASSOCIATES, INC.


                         By:     /S/ WILLIAM L. LARSON 
                                ---------------------------------------
                         Name:       WILLIAM L. LARSON 
                                ---------------------------------------
                         Title:   CHAIRMAN AND CHIEF EXECUTIVE OFFICER
                                ---------------------------------------

                         MYSTERY ACQUISITION CORP.


                         By:     /S/ PRABHAT K. GOYAL 
                                ---------------------------------------

                         Name:       PRABHAT K. GOYAL 
                                ---------------------------------------

                         Title:      PRESIDENT 
                                ---------------------------------------


                         NETWORK GENERAL CORPORATION


                         By:     /S/ LAURENCE R. HOOTNICK
                                ---------------------------------------

                         Name:       LAURENCE R. HOOTNICK
                                ---------------------------------------

                         Title:      DIRECTOR  
                                ---------------------------------------



                 **** REORGANIZATION AGREEMENT **** 


<PAGE>

                    FIRST AMENDMENT, dated as of October 22, 1997 (the "First
               Amendment"), to the Agreement and Plan of Reorganization dated as
               of October 13, 1997 (the "Reorganization Agreement") among McAfee
               Associates, Inc., a Delaware corporation ("Parent"), Mystery
               Acquisition Corp., a Delaware corporation and a wholly owned
               subsidiary of Parent ("Merger Sub"), and Network General
               Corporation, a Delaware corporation (the "Company").  

     WHEREAS Parent, Merger Sub and the Company each desire to amend the
Reorganization Agreement. 

     NOW, THEREFORE, the parties hereto hereby agree as follows:

     1.   Section 5.14 of the Reorganization Agreement is hereby amended and
restated to read in its entirety as follows:

               Section 5.14  BOARD OF DIRECTORS OF PARENT FOLLOWING THE MERGER. 
          The Board of Directors of Parent shall take all actions within its
          power to cause the Board of Directors of Parent, effective no later
          than one day following the Effective Time, to consist of six persons,
          one of whom shall be Leslie G. Denend (who shall retain his present
          position as a Class II director), one of whom shall be Harry J. Saal
          (who shall be offered a position as a Class II director) and the
          remaining four of whom shall have served on the Board of Directors of
          Parent immediately prior to the Effective Time (each a "Parent
          Designee").  If, prior to the Effective Time, any of the foregoing
          designees shall decline or be unable to serve as a director, Company
          (if such person is Leslie Denend or Harry Saal) or Parent (in all
          other cases) shall designate another person to serve in such person's
          stead, which person shall be reasonably acceptable to the other party;
          provided, however, that the Board of Directors of McAfee shall take
          all actions within its power to ensure the Board of Directors of
          Parent will be reduced to five directors in the event any Parent
          Designee shall resign or decline or be unable to serve as a director.

     2.   The First Amendment shall be governed by, and construed in accordance
with, the laws of the State of Delaware, regardless of the laws that might
otherwise govern under applicable principles of conflicts of laws thereof.

     3.   This First Amendment may be executed in one or more counterparts, all
of which shall be considered one and the same agreement, and shall become
effective when one or more counterparts have been signed by each of the parties
and delivered to the other parties.

     4.   Except as expressly modified and amended by this First Amendment, the
Reorganization Agreement shall continue in full force and effect and is hereby
ratified and confirmed in all respects. 


<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this First Amendment to
the Reorganization Agreement to be executed by their duly authorized respective
officers as of the date first written above.

                              McAFEE ASSOCIATES, INC.


                              By:  /s/William L. Larson             
                                   ------------------------------------------

                              Name:     William L. Larson           
                                   ------------------------------------------

                              Title:    Chairman and Chief Executive Officer
                                    -----------------------------------------



                              MYSTERY ACQUISITION CORP.


                              By:  /s/ Prabhat K. Goyal             
                                   ------------------------------------------

                              Name:     Prabhat K. Goyal            
                                   ------------------------------------------

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



                              NETWORK GENERAL CORPORATION


                              By:  /s/Scott C. Neely                
                                   ------------------------------------------

                              Name:     Scott C. Neely              
                                   ------------------------------------------

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




                                       -2-
<PAGE>



         ****FIRST AMENDMENT TO REORGANIZATION AGREEMENT****


                                       -3-


<PAGE>
                                                                     Exhibit 2.2


                           NETWORK GENERAL VOTING AGREEMENT


    This Voting Agreement ("AGREEMENT") is made and entered into as of October
__, 1997, between McAfee Associates, Inc., a Delaware corporation ("PARENT"),
and the undersigned stockholder ("STOCKHOLDER") of Network General Corporation,
a Delaware corporation (the "COMPANY").

                                       RECITALS

    A.   Concurrently with the execution of this Agreement, Parent, the Company
and Mystery Acquisition Corp., a Delaware corporation and a wholly-owned
subsidiary of Parent ("MERGER SUB"), are entering  into an Agreement and Plan of
Reorganization (the "MERGER AGREEMENT") which provides for the merger (the
"MERGER") of Merger Sub with and into the Company.  Pursuant to the Merger,
shares of capital stock of the Company will be converted into Common Stock of
Parent on the basis described in the Merger Agreement.

    B.   The Stockholder is the record holder of the number of outstanding
shares of Common Stock of the Company indicated on the final page of this
Agreement.  In addition, the Stockholder holds options to purchase the number of
shares of Common Stock of the Company indicated on the final page of this
Agreement.

    C.   As a material inducement to enter into the Merger Agreement, Parent
desires the Stockholder to agree, and the Stockholder is willing to agree, to
vote the Shares (as defined below) and other such shares of capital stock of the
Company over which Stockholder has voting power so as to facilitate consummation
of the Merger.

    NOW, THEREFORE, intending to be legally bound, the parties agree as
    follows:

    1.   AGREEMENT TO VOTE SHARES; ADDITIONAL PURCHASES.  

         1.1  AGREEMENT TO VOTE SHARES.  At every meeting of the stockholders
of the Company called with respect to any of the following, and at every
adjournment thereof, and on every action or approval by written consent of the
stockholders of the Company with respect to any of the following, Stockholder
shall cause the Shares and any New Shares (as defined below) to be voted in
favor of approval of the Merger Agreement and the Merger.

         1.2  DEFINITION.  For purposes of this Agreement, "SHARES" shall mean
all issued and outstanding shares of Common Stock of the Company owned of record
or beneficially (over which beneficially-owned shares the Stockholder exercises
voting power) by the Stockholder as of 


<PAGE>

the record date for persons entitled (a) to receive notice of, and to vote at 
the meeting of the stockholders of the Company called for the purpose of 
voting on the matter referred to in Section 1.1, or (b) to take action by 
written consent of the stockholders of the Company with respect to the matter 
referred to in Section 1.1

         1.3  ADDITIONAL PURCHASES.  Stockholder agrees that any shares of 
capital stock of the Company that Stockholder purchases or with respect to 
which Stockholder otherwise acquires beneficial ownership (over which 
beneficially-owned shares Stockholder exercises voting power) after the 
execution of this Agreement and prior to the date of termination of this 
Agreement ("NEW SHARES") shall be subject to the terms and conditions of this 
Agreement to the same extent as if they constituted Shares.  

    2.   IRREVOCABLE PROXY.  Concurrently with the execution of this Agreement,
Stockholder agrees to deliver to Parent a proxy in the form attached hereto as
Exhibit A (the "PROXY"), which shall be irrevocable, with respect to the Shares.

    3.   REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER.  Stockholder (i) is
the owner of the shares of Common Stock of the Company, and the options to
purchase shares of Common Stock of the Company, indicated on the final page of
this Agreement, which at the date hereof are free and clear of any liens,
claims, options, charges or other encumbrances; (ii) does not beneficially own
any securities of the Company other than the shares of Common Stock of the
Company, and options to purchase shares of Common Stock of the Company,
indicated on the final page of this Agreement; and (iii) has full power and
authority to make, enter into and carry out the terms of this Agreement.

    4.   ADDITIONAL DOCUMENTS.  Stockholder and Parent hereby covenant and
agree to execute and deliver any additional documents necessary or desirable, in
the reasonable opinion of Parent or Stockholder, as the case may be, to carry
out the intent of this Agreement.

    5.   CONSENT AND WAIVER.  Stockholder (not in his capacity as a director or
officer of the Company) hereby gives any consents or waivers that are reasonably
required for the consummation of the Merger under the terms of any agreements to
which Stockholder is a party or pursuant to any rights Stockholder may have.

    6.   TERMINATION.  This Agreement shall terminate and shall have no further
force or effect as of the earlier to occur of (i) such date and time as the
Merger shall become effective in accordance with the terms and provisions of the
Merger Agreement or (ii) such date and time as the Merger Agreement shall have
been  terminated pursuant to Article VII thereof. 

    7.   MISCELLANEOUS.

         7.1  SEVERABILITY.  If any term, provision, covenant or restriction of
this Agreement is held by a court of competent jurisdiction to be invalid, void
or unenforceable, then the remainder 

                                       -2-
<PAGE>

of the terms, provisions, covenants and restrictions of this Agreement shall 
remain in full force and effect and shall in no way be affected, impaired or 
invalidated.

         7.2  BINDING EFFECT AND ASSIGNMENT.  This Agreement and all of the
provisions hereof shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and permitted assigns, but, except as
otherwise specifically provided herein, neither this Agreement nor any of the
rights, interests or obligations of the parties hereto may be assigned by either
of the parties without prior written consent of the other.

         7.3  AMENDMENTS AND MODIFICATION.  This Agreement may not be modified,
amended, altered or supplemented except upon the execution and delivery of a
written agreement executed by the parties hereto.

         7.4  SPECIFIC PERFORMANCE; INJUNCTIVE RELIEF.  The parties hereto
acknowledge that Parent will be irreparably harmed and that there will be no
adequate remedy at law for a violation of any of the covenants or agreements of
Stockholder set forth herein.  Therefore, it is agreed that, in addition to any
other remedies that may be available to Parent upon any such violation, Parent
shall have the right to enforce such covenants and agreements by specific
performance, injunctive relief or by any other means available to Parent at law
or in equity.

         7.5  NOTICES.  All notices, requests, claims, demands and other
communications hereunder shall be in writing and sufficient if delivered in
person, by cable, telegram or telex, or sent by mail (registered or certified
mail, postage prepaid, return receipt requested) or overnight courier (prepaid)
to the respective parties as follows:

         If to Parent:            McAfee Associates, Inc.
                                  2805 Bowers Avenue
                                  Santa Clara, CA  95051
                                  Attn: President and Chief Executive Officer

         With a copy  to:         Wilson Sonsini Goodrich & Rosati, P.C.
                                  650 Page Mill Road
                                  Palo Alto, California 94304-1050
                                  Attn:     Jeff Saper, Esq.
                                            Marty Korman, Esq.

         If to the Stockholder:   To the address for notice set forth on the
                                  last page hereof.

         With a copy to:          Gray Cary Ware & Freidenrich, P.C. 
                                  400 Hamilton Avenue
                                  Palo Alto, CA  94301
                                  Attn:     Rod Howard, Esq.

                                       -3-
<PAGE>

or to such other address as any party may have furnished to the other in writing
in accordance herewith, except that notices of change of address shall only be
effective upon receipt.

         7.6  GOVERNING LAW.  This Agreement shall be governed by, and
construed and enforced in accordance with, the internal laws of the State of
Delaware (without regard to the principles of conflict of laws thereof).

         7.7  ENTIRE AGREEMENT.  This Agreement contains the entire
understanding of the parties in respect of the subject matter hereof, and
supersedes all prior negotiations and understandings between the parties with
respect to such subject matter.

         7.8  COUNTERPARTS.  This Agreement may be executed in several
counterparts, each of which shall be an original, but all of which together
shall constitute one and the same agreement.

         7.9  EFFECT OF HEADINGS.  The section headings herein are for
convenience only and shall not affect the construction or interpretation of this
Agreement.

                                       * * * * 


                                       -4-
<PAGE>

    IN WITNESS WHEREOF, the parties have caused this Voting Agreement to be
duly executed on the date and year first above written.

                        PARENT

                        By:                                                    
                           -----------------------------------------------------

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

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

                        STOCKHOLDER:

                        By:                                                     
                           -----------------------------------------------------

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

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


                        Stockholder's Address for Notice:

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

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

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

                                   Outstanding Shares of Common Stock of the
                        ----------
                        Company

                                   Outstanding Shares of Common Stock of the
                        ----------
                        Company subject to outstanding stock options


                            ***COMPANY VOTING AGREEMENT*** 


                                       -5-
<PAGE>

                                      EXHIBIT A

                                  IRREVOCABLE PROXY


    The undersigned Stockholder of Network General Corporation, a Delaware
corporation (the "COMPANY"), hereby irrevocably appoints the directors on the
Board of Directors of McAfee Associates, Inc., a Delaware corporation
("PARENT"), and each of them, as the sole and exclusive attorneys and proxies of
the undersigned, with full power of substitution and resubstitution, to the full
extent of the undersigned's rights with respect to the voting of the Shares (as
defined in the Voting Agreement of even date between Parent and the Stockholder
(the "VOTING AGREEMENT")) on the matter described below (and on no other
matter), until such time as that certain Agreement and Plan of Reorganization
dated as of October13, 1997 (the "MERGER AGREEMENT"), among Parent, Mystery
Acquisition Corp., a Delaware corporation and a wholly-owned subsidiary of
Parent ("MERGER SUB"), and the Company, shall be terminated in accordance with
its terms or the Merger (as defined in the Merger Agreement) becomes effective. 
Upon the execution hereof, all prior proxies given by the undersigned with
respect to the Shares and any and all other shares or securities issued or
issuable in respect thereof on or after the date hereof are hereby revoked and
no subsequent proxies will be given.

    This proxy is irrevocable, is granted pursuant to the Voting Agreement and
is granted in consideration of Parent entering into the Merger Agreement.  The
attorneys and proxies named above will be empowered at any time prior to the
earlier of termination of the Merger Agreement and the date on which the Merger
becomes effective to exercise all voting rights (including, without limitation,
the power to execute and deliver written consents with respect to the Shares) of
the undersigned at every annual, special or adjourned meeting of the Company's
stockholders, and in every written consent in lieu of such a meeting, or
otherwise, to vote the Shares in favor of approval of the Merger and the Merger
Agreement.

    The attorneys and proxies named above may only exercise this proxy to vote
the Shares subject hereto at any time prior to the earlier of termination of the
Merger Agreement and the date on which the Merger becomes effective, at every
annual, special or adjourned meeting of the Stockholders of the Company and in
every written consent in lieu of such meeting, in favor of approval of the
Merger and the Merger Agreement.  The undersigned Stockholder may vote the
Shares on all other matters.

    Any obligation of the undersigned hereunder shall be binding upon the
successors and assigns of the undersigned.

    This proxy is irrevocable.

Dated:   [__________], 1997

    Signature of Stockholder:                    
                             ----------------------------

    Print Name of Stockholder:                   
                              ---------------------------



                                 ***COMPANY PROXY***
<PAGE>




                                       -2-

<PAGE>

                                                                     Exhibit 2.3


              McAFEE ASSOCIATES, INC. VOTING AGREEMENT


     This Voting Agreement ("AGREEMENT") is made and entered into as of 
October __, 1997, between Network General Corporation, a Delaware corporation 
(the "COMPANY"), and the undersigned stockholder ("STOCKHOLDER") of McAfee 
Associates, Inc., a Delaware corporation ("PARENT").

                              RECITALS

     A.   Concurrently with the execution of this Agreement, Parent, the Company
and Mystery Acquisition Corp., a Delaware corporation and a wholly-owned
subsidiary of Parent ("MERGER SUB"), are entering  into an Agreement and Plan of
Reorganization (the "MERGER AGREEMENT") which provides for the merger (the
"MERGER") of Merger Sub with and into the Company.  Pursuant to the Merger,
shares of capital stock of the Company will be converted into Common Stock of
Parent on the basis described in the Merger Agreement.

     B.   The Stockholder is the record holder of such number of outstanding
shares of Common Stock of Parent as is indicated on the final page of this
Agreement.  In addition, the Stockholder holds options to purchase such number
of shares of Common Stock of Parent as is indicated on the final page of this
Agreement.

     C.   As a material inducement to enter into the Merger Agreement, the
Company desires the Stockholder to agree, and the Stockholder is willing to
agree, to vote the Shares (as defined below) and other such shares of capital
stock of the Company over which Stockholder has voting power so as to facilitate
consummation of the Merger.

     NOW, THEREFORE, intending to be legally bound, the parties agree as
     follows:

     1.   AGREEMENT TO VOTE SHARES; ADDITIONAL PURCHASES.  

          1.1  AGREEMENT TO VOTE SHARES.  At every meeting of the stockholders
of Parent called with respect to any of the following, and at every adjournment
thereof, and on every action or approval by written consent of the stockholders
of Parent with respect to any of the following, Stockholder shall cause the
Shares and any New Shares (as defined below) to be voted in favor of approval of
the issuance of shares of Parent's Common Stock (the "PARENT COMMON STOCK"), to
the stockholders of the Company pursuant to the Merger Agreement.

          1.2  DEFINITION.  For purposes of this Agreement, "SHARES" shall 
mean all issued and outstanding shares of Common Stock of Parent owned of 
record or beneficially (over which 


<PAGE>

beneficially-owned shares the Stockholder exercises voting power) by the 
Stockholder as of the record date for persons entitled (a) to receive notice 
of, and to vote at the meeting of the stockholders of Parent called for the 
purpose of voting on the matter referred to in Section 1.1, or (b) to take 
action by written consent of the stockholders of Parent with respect to the 
matter referred to in Section 1.1

          1.3  ADDITIONAL PURCHASES.  Stockholder agrees that any shares of 
capital stock of Parent that Stockholder purchases or with respect to which 
Stockholder otherwise acquires beneficial ownership (over which 
beneficially-owned shares the Stockholder exercises voting power) after the 
execution of this Agreement and prior to the date of termination of this 
Agreement ("NEW SHARES") shall be subject to the terms and conditions of this 
Agreement to the same extent as if they constituted Shares.   

     2.   IRREVOCABLE PROXY.  Concurrently with the execution of this Agreement,
Stockholder agrees to deliver to the Company a proxy in the form attached hereto
as Exhibit A (the "PROXY"), which shall be irrevocable, with respect to the
Shares.

     3.   REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER.  Stockholder (i) is
the owner of the shares of Common Stock of Parent, and the options to purchase
shares of Common Stock of Parent, indicated on the final page of this Agreement,
which at the date hereof are free and clear of any liens, claims, options,
charges or other encumbrances; (ii) does not beneficially own any securities of
Parent other than the shares of Common Stock of Parent, and options to purchase
shares of Common Stock of Parent, indicated on the final page of this Agreement;
and (iii) has full power and authority to make, enter into and carry out the
terms of this Agreement.

     4.   ADDITIONAL DOCUMENTS.  Stockholder and the Company hereby covenant and
agree to execute and deliver any additional documents necessary or desirable, in
the reasonable opinion of the Company or Stockholder, as the case may be, to
carry out the intent of this Agreement.

     5.   CONSENT AND WAIVER.  Stockholder (not in his capacity as a director or
officer of the Company) hereby gives any consents or waivers that are reasonably
required for the issuance of the Parent Common Stock under the terms of any
agreements to which Stockholder is a party or pursuant to any rights Stockholder
may have.

     6.   TERMINATION.  This Agreement shall terminate and shall have no further
force or effect as of the earlier to occur of (i) such date and time as the
Merger shall become effective in accordance with the terms and provisions of the
Merger Agreement or (ii) such date and time as the Merger Agreement shall have
been  terminated pursuant to Article VII thereof. 

     7.   MISCELLANEOUS.

                                       -2-
<PAGE>

          7.1  SEVERABILITY.  If any term, provision, covenant or restriction of
this Agreement is held by a court of competent jurisdiction to be invalid, void
or unenforceable, then the remainder of the terms, provisions, covenants and
restrictions of this Agreement shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.

          7.2  BINDING EFFECT AND ASSIGNMENT.  This Agreement and all of the
provisions hereof shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and permitted assigns, but, except as
otherwise specifically provided herein, neither this Agreement nor any of the
rights, interests or obligations of the parties hereto may be assigned by either
of the parties without prior written consent of the other.

          7.3  AMENDMENTS AND MODIFICATION.  This Agreement may not be modified,
amended, altered or supplemented except upon the execution and delivery of a
written agreement executed by the parties hereto.

          7.4  SPECIFIC PERFORMANCE; INJUNCTIVE RELIEF.  The parties hereto
acknowledge that the Company will be irreparably harmed and that there will be
no adequate remedy at law for a violation of any of the covenants or agreements
of Stockholder set forth herein.  Therefore, it is agreed that, in addition to
any other remedies that may be available to the Company upon any such violation,
the Company shall have the right to enforce such covenants and agreements by
specific performance, injunctive relief or by any other means available to the
Company at law or in equity.

          7.5  NOTICES.  All notices, requests, claims, demands and other
communications hereunder shall be in writing and sufficient if delivered in
person, by cable, telegram or telex, or sent by mail (registered or certified
mail, postage prepaid, return receipt requested) or overnight courier (prepaid)
to the respective parties as follows:

          If to the Company:       McAfee Associates, Inc.
                                   2805 Bowers Avenue
                                   Santa Clara, CA 95051
                                   Attn:   Chief Financial Officer    

          With a copy  to:         Gray Cary Ware & Freidenrich, P.C. 
                                   400 Hamilton Avenue
                                   Palo Alto, CA  94301
                                   Attn:     Rod Howard, Esq.

          If to the Stockholder:   To the address for notice set forth on the
                                   last page hereof.

          With a copy to:          Wilson Sonsini Goodrich & Rosati, P.C.
                                   650 Page Mill Road
                                   Palo Alto, California 94304-1050
                                   Attn:     Jeff Saper, Esq.

                                       -3-
<PAGE>

                                             Marty Korman, Esq.


or to such other address as any party may have furnished to the other in writing
in accordance herewith, except that notices of change of address shall only be
effective upon receipt.

          7.6  GOVERNING LAW.  This Agreement shall be governed by, and
construed and enforced in accordance with, the internal laws of the State of
Delaware (without regard to the principles of conflict of laws thereof).

          7.7  ENTIRE AGREEMENT.  This Agreement contains the entire
understanding of the parties in respect of the subject matter hereof, and
supersedes all prior negotiations and understandings between the parties with
respect to such subject matter.

          7.8  COUNTERPARTS.  This Agreement may be executed in several
counterparts, each of which shall be an original, but all of which together
shall constitute one and the same agreement.

          7.9  EFFECT OF HEADINGS.  The section headings herein are for
convenience only and shall not affect the construction or interpretation of this
Agreement.

                               * * * *
                                  


                                       -4-
<PAGE>

      
     IN WITNESS WHEREOF, the parties have caused this Voting Agreement to be
duly executed on the date and year first above written.

                        COMPANY

                        By:                                                    
                           -----------------------------------------------------

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

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

                        STOCKHOLDER:

                        By:                                                     
                           -----------------------------------------------------

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

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


                        Stockholder's Address for Notice:

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

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

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

                                   Outstanding Shares of Common Stock of Parent
                        ----------

                                   Outstanding Shares of Common Stock of Parent
                        ----------
                        subject to outstanding stock options


                    ***PARENT VOTING AGREEMENT*** 


                                       -5-
<PAGE>

                              EXHIBIT A

                          IRREVOCABLE PROXY


     The undersigned Stockholder of  McAfee Associates, Inc., a Delaware
corporation ("PARENT"), hereby irrevocably appoints the directors on the Board
of Directors of Network General Corporation, a Delaware corporation (the
"COMPANY"), and each of them, as the sole and exclusive attorneys and proxies of
the undersigned, with full power of substitution and resubstitution, to the full
extent of the undersigned's rights with respect to the voting of the Shares (as
defined in the Voting Agreement of even date between the Company and the
Stockholder (the "VOTING AGREEMENT")) on the matter described below (and on no
other matter), until such time as that certain Agreement and Plan of Merger,
dated as of October 13, 1997 (the "MERGER AGREEMENT"), among Parent, Mystery
Acquisition Corp., a Delaware corporation and a wholly-owned subsidiary of
Parent ("MERGER SUB"), and the Company, shall be terminated in accordance with
its terms or the Merger (as defined in the Merger Agreement) becomes effective. 
Upon the execution hereof, all prior proxies given by the undersigned with
respect to the Shares and any and all other shares or securities issued or
issuable in respect thereof on or after the date hereof are hereby revoked and
no subsequent proxies will be given.

     This proxy is irrevocable, is granted pursuant to the Voting Agreement and
is granted in consideration of the Company entering into the Merger Agreement. 
The attorneys and proxies named above will be empowered at any time prior to the
earlier of termination of the Merger Agreement and the date on which the Merger
becomes effective to exercise all voting rights (including, without limitation,
the power to execute and deliver written consents with respect to the Shares) of
the undersigned at every annual, special or adjourned meeting of Parent's
stockholders, and in every written consent in lieu of such a meeting, or
otherwise, to vote the Shares in favor of approval of the issuance of shares of
Parent Common Stock to the stockholders of the Company pursuant to the Merger
Agreement.

     The attorneys and proxies named above may only exercise this proxy to vote
the Shares subject hereto at any time prior to the earlier of termination of the
Merger Agreement and the date on which the Merger becomes effective, at every
annual, special or adjourned meeting of the Stockholders of Parent and in every
written consent in lieu of such meeting, in favor of approval of the issuance of
shares of Parent Common Stock to the stockholders of the Company pursuant to the
Merger Agreement.  The undersigned Stockholder may vote the Shares on all other
matters.

     Any obligation of the undersigned hereunder shall be binding upon the
successors and assigns of the undersigned.

     This proxy is irrevocable.

Dated:    ________________, 1997

     Signature of Stockholder:                    
                              -------------------------------------
     Print Name of Stockholder:                   
                               ------------------------------------


<PAGE>




                         ***PARENT PROXY***

                                  -2-


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS INCLUDED IN PART 1, ITEM 1 OF FORM 10-Q DATED SEPTEMBER 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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