AXENT TECHNOLOGIES INC
10-Q, 1998-11-16
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM 10-Q
                                 ---------------


(Mark One)

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

For the quarterly period ended September 30, 1998

                                       OR

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

For the transition period from ______ to ______.

                         Commission File Number: 0-28100

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

                            AXENT TECHNOLOGIES, INC.

             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


           Delaware                                       87-0393420
(State or other jurisdiction of                        (I.R.S. Employer
 incorporation or organization)                        Identification No.)


                             2400 Research Boulevard
                                    Suite 200
                            Rockville, Maryland 20850
                    (Address of principal executive offices)


                                 (301) 258-5043
               (Registrant's telephone number including area code)

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

Indicate by check mark whether  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  November  11,  1998,  there were  24,963,897  shares  outstanding  of the
Registrant's Common Stock, par value $.02 per share.


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

<PAGE>


                            AXENT TECHNOLOGIES, INC.

                                      INDEX

<TABLE>
<CAPTION>

                                                                                        
<S>                                                                               <C>    
                                                                                   Page Number

PART I.  FINANCIAL INFORMATION

Item 1.   Financial Statements                                                      3

         Condensed Consolidated Balance Sheets as of                                4
         September 30, 1998 and December 31, 1997

         Condensed Consolidated Statements of  Operations                           5
         for the three and nine months ended September 30, 1998 and 1997

         Condensed Consolidated Statements of Cash Flows for the                    6
         nine months ended September 30, 1998 and 1997

         Condensed Consolidated Statements of Comprehensive                         7
         Income (Loss) for the three and nine months ended
         September 30, 1998 and 1997

         Notes to Condensed Consolidated Financial Statements                       8

Item 2.  Management's Discussion and Analysis of                                   11
         Financial Condition and Results of Operations

Item 3.  Qualitative and Quantitative Disclosures About Market Risk                19

PART II. OTHER INFORMATION 

Item 1.  Legal Proceedings                                                         19

Item 6.  Exhibits                                                                  20

SIGNATURES                                                                         21

</TABLE>



                                     - 2 -
<PAGE>


PART I.  FINANCIAL INFORMATION


Item 1.

                              FINANCIAL STATEMENTS

The financial statements set forth below at September 30, 1998 and for the three
and nine month periods ended  September 30, 1998 and 1997 are unaudited and have
been  prepared  pursuant  to the rules and  regulations  of the  Securities  and
Exchange  Commission  (the  "SEC").  Certain  information  and note  disclosures
normally  included in annual  financial  statements  prepared in accordance with
generally accepted accounting principles have been condensed or omitted pursuant
to those rules and regulations.

These financial statements should be read in conjunction with the latest audited
consolidated  financial  statements  and the notes  thereto  for the fiscal year
ended  December 31, 1997,  which are included in the Company's  Annual Report on
Form 10-K as filed with the SEC on March 31, 1998.








                                     - 3 -

<PAGE>
                            AXENT TECHNOLOGIES, INC.
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                             (amounts in thousands)

<TABLE>
<CAPTION>                                                                      
<S>                                                                           <C>                 <C> 
                                                                               September 30,       December 31,
                                                                                   1998               1997
                                                                                (unaudited)             
                                                                              ----------------    -----------------
ASSETS

Current assets:
   Cash and cash equivalents                                                        $  59,474          $    51,618
   Marketable securities                                                               42,255               40,882
   Accounts receivable, net                                                            22,669               18,223
   Other current assets                                                                 4,815                4,337
                                                                              ----------------    -----------------

        Total current assets                                                          129,213              115,060
                                                                              ----------------    -----------------

Property and equipment, net                                                             6,762                4,263
Other assets                                                                            9,529                5,458
                                                                              ----------------    -----------------
        Total assets                                                                $ 145,504           $  124,781
                                                                              ================    =================

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
   Accounts payable and accrued liabilities                                        $   15,931          $    13,120
   Deferred revenue                                                                     9,143                7,396
                                                                              ----------------    -----------------

        Total  liabilities                                                             25,074               20,516
                                                                              ----------------    -----------------
Stockholders' equity:
   Common stock, par value $0.02: 24,866,507 and 23,268,657
         shares issued and outstanding, respectively                                      497                  466
   Additional paid-in capital                                                         154,298              139,612
   Accumulated deficit                                                                (33,969)             (33,389)
   Accumulated other comprehensive income                                                (396)                 (85)
   Unearned compensation                                                                   --               (2,339)
                                                                              ----------------    -----------------

        Total stockholders' equity                                                    120,430              104,265
                                                                              ----------------    -----------------

        Total liabilities and stockholders' equity                                 $  145,504            $ 124,781
                                                                              ================    =================

         The accompanying notes are an integral part of these condensed
                       consolidated financial statements.
</TABLE>
                                     - 4 -
<PAGE>


                            AXENT TECHNOLOGIES, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                  (amounts in thousands, except per share data)
                                   (unaudited)
<TABLE>
<CAPTION>

<S>                                                               <C>              <C>            <C>              <C>   
                                                                     For the Three Months              For the Nine Months
                                                                      Ended September 30,              Ended September 30,
                                                                  ----------------------------    ------------------------------
                                                                     1998             1997           1998              1997
                                                                  ------------     -----------    ------------     -------------
Net revenues:
   Product licenses                                                 $  18,957       $  13,491        $ 52,632          $ 37,004
   Services                                                             5,047           3,580          14,243             9,772
                                                                  ------------     -----------    ------------     -------------
      Total net revenues                                               24,004          17,071          66,875            46,776
Cost of net revenues                                                    2,472           1,676           6,882             4,499
                                                                  ------------     -----------    ------------     -------------
Gross profit                                                           21,532          15,395          59,993            42,277
Operating expenses:
   Sales and marketing                                                  9,881           7,785          28,619            22,480
   Research and development                                             4,353           3,119          12,680             8,879
   General and administrative                                           1,578           1,692           4,490             5,207
   Non-recurring charges                                                   --              --          17,422            34,154
                                                                  ------------     -----------    ------------     -------------
       Total operating expenses                                        15,812          12,596          63,211            70,720
                                                                  ------------     -----------    ------------     -------------

Income (loss) from continuing operations before royalties,
interest and taxes                                                      5,720           2,799          (3,218)          (28,443)
   Royalty income                                                         383             741           1,510             2,267
   Interest income                                                      1,228           1,154           3,313             3,398
   Gain on sale of marketable securities                                   --              --             389                --
   Income tax provision                                                (2,571)         (1,773)         (2,749)           (2,007)
                                                                  ------------     -----------    ------------     -------------
Income (loss)  from continuing operations                               4,760           2,921            (755)          (24,785)
Income from discontinued operations                                        --              --              --               255
                                                                  ------------     -----------    ------------     -------------
Net income (loss)                                                  $    4,760      $    2,921       $    (755)        $ (24,530)
                                                                  ------------     -----------    ------------     -------------
Net income (loss) per common share (basic):
   Continuing operations                                          $      0.19      $     0.13       $   (0.03)        $   (1.10)
   Discontinued operations                                                 --              --              --              0.01
                                                                  ------------     -----------    ------------     -------------
Net income (loss) per common share (basic)                        $      0.19      $     0.13       $   (0.03)        $   (1.09)
                                                                  ------------     -----------    ------------     -------------
Number of shares used in computing net income (loss) per
common share outstanding (basic)                                       24,807          22,793          24,322            22,474

Net income (loss) per common share (diluted):
   Continuing operations                                          $      0.18      $     0.11       $   (0.03)       $    (1.10)
   Discontinued operations                                                 --              --              --              0.01
                                                                  ------------     -----------    ------------     ------------
Net income (loss) per common share (diluted)                      $      0.18      $     0.11        $  (0.03)       $    (1.09)
                                                                  ============     ============   ============     ============ 
Number of shares used in computing net income (loss) per
common share outstanding (diluted)                                     26,026          25,491          24,322            22,474

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

</TABLE>
                                     - 5 -
<PAGE>

                            AXENT TECHNOLOGIES, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                             (amounts in thousands)
                                   (unaudited)

<TABLE>
<CAPTION>
<S>                                                                                 <C>                  <C>  

                                                                                            For the Nine Months
                                                                                            Ended September 30,
                                                                                    ------------------------------------
                                                                                         1998                 1997
                                                                                    ----------------     ---------------
CASH INFLOWS (OUTFLOWS)

   Operating activities:
     Net loss from continuing operations                                                    $ (755)          $ (24,785)
                                                                                              
     Non-cash items:
       Depreciation and amortization                                                         2,239               1,746
       Non-recurring costs                                                                  17,422              34,154
       Gain on sale of marketable securities                                                  (389)                 --
       Income tax benefit                                                                       --                (471)
     Payments for corporate acquisition                                                     (9,730)                 --
     Change in assets and liabilities                                                       (4,318)             (7,734)
                                                                                    ----------------     ---------------
   Net cash provided by continuing operations                                                4,469               2,910
   Net cash used by discontinued operations                                                     --                (614)
                                                                                    ----------------     ---------------
         Net cash provided by operating activities                                           4,469               2,296
                                                                                    ----------------     ---------------

   Investing activities:
     Capital expenditures                                                                   (5,194)             (1,789)
     Proceeds from the sale of marketable securities                                           389                  --
     Purchases of short-term investments                                                   (64,034)             (8,209)
     Maturity of short-term investments                                                     62,661                 448
     Payments for business acquisitions and other investments                                 (238)             (7,473)
                                                                                    ----------------     ---------------
   Net cash used by continuing operations                                                   (6,416)            (17,023)
   Net cash provided by discontinued operations                                                 --                 645
                                                                                    ----------------     ---------------
         Net cash used by investing activities                                              (6,416)            (16,378)
                                                                                    ----------------     ---------------
  Financing activities:
    Proceeds from issuance of common stock                                                   9,876               2,489
    Proceeds from line of credit draws                                                          --                 490
    Principal payments on line of credit                                                        --              (1,225)
                                                                                    ----------------     ---------------

  Net cash provided by continuing operations from financing activities                       9,876               1,754
                                                                                    ----------------     ---------------

  Effect of exchange rate changes on cash                                                      (73)                (87) 
                                                                                    ----------------     ---------------
  Net increase (decrease) in cash and cash equivalents                                       7,856             (12,415)
  Cash and cash equivalents, beginning of period                                            51,618              54,828
                                                                                    ----------------     ---------------
  Cash and cash equivalents, end of period                                                $ 59,474            $ 42,413
                                                                                    ================     ===============


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

</TABLE>
                                      - 6 -
<PAGE>


                            AXENT TECHNOLOGIES, INC.
         CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
                             (amounts in thousands)
                                   (unaudited)
<TABLE>

                                                              For the Three Months                  For the Nine Months
                                                               Ended September 30,                   Ended September 30,
   <S>                                                   <C>                <C>               <C>               <C>  
                                                         --------------------------------     ---------------------------------
                                                             1998               1997              1998               1997
                                                         --------------     -------------     -------------     ---------------
   Net income (loss)                                          $  4,760        $    2,921        $    (755)          $ (24,530)
   Other comprehensive income (loss)                                
      Recapitalization of gain on marketable securities             --                --             (238)                 --
      Currency translation effects                                 (40)                7              (73)                (87)
                                                         --------------     --------------     --------------    --------------
   Comprehensive income (loss)                                $  4,720        $    2,928        $  (1,066)          $ (24,617)
                                                         ==============     ==============     ==============    ===============

</TABLE>


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




                                     - 7 -
<PAGE>
                            AXENT TECHNOLOGIES, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)

Basis of Presentation

AXENT Technologies,  Inc. and its wholly owned subsidiaries  (collectively,  the
"Company"  or "AXENT")  develop,  market,  license  and support  enterprise-wide
information  security  solutions for  client/server  computing  environments and
provide related services.

The Company's condensed  consolidated financial statements have been restated to
reflect the acquisition of Raptor Systems, Inc. ("Raptor"),  which was accounted
for as a pooling of interests and consummated on February 5, 1998, in accordance
with APB No. 16. AXENT's historical  financial  statements and related financial
information have been restated to combine earlier financial  statements of AXENT
and Raptor.

The accompanying  unaudited condensed  consolidated financial statements reflect
all the adjustments,  consisting of normal recurring  adjustments,  that, in the
opinion of management,  are necessary for a fair presentation of the results for
the interim periods presented.  The results for the three and nine month periods
ended  September 30, 1998 may not  necessarily  be indicative of the results for
the  entire  year  or  any  future  period.  The  December  31,  1997  condensed
consolidated  balance sheet was derived from audited financial  statements as of
the same  date but  does not  include  all  disclosures  required  by  generally
accepted accounting principles.

These  financial  statements  should be read in  conjunction  with the Company's
annual audited financial  statements for the year ended December 31, 1997, which
are included in the Company's Form 10-K filed with the SEC on March 31, 1998.

Business Combinations

On July 21,  1998,  the Company  completed  the  acquisition  of Secure  Network
Consulting,  Inc.  ("SNCI"),  a privately-held information  security  consulting
firm. In conjunction with the  acquisition,  the Company issued 85,000 shares of
common stock to SNCI's shareholders. The transaction was accounted for using the
purchase method of accounting.  The purchase price, including transaction costs,
was $2.3  million.  This amount  exceeded  the fair value of assets  acquired by
approximately $2.1 million,  which is being amortized, on a straight-line basis,
over 7 years.  The results of SNCI are  included in the  accompanying  financial
statements from the date of acquisition.

On February 5, 1998, the Company  consummated its merger with Raptor in which it
acquired 100% of the outstanding  stock of Raptor for 10,952,380 shares of AXENT
common stock and exchanged stock options covering a total of 1,725,988 shares of
AXENT  common  stock.  The  Company  incurred  approximately  $17.42  million in
non-recurring transaction and other related costs in relation to the merger. The
business  combination  was accounted  for by the pooling of interests  method of
accounting, and accordingly,  the assets, liabilities  and  stockholders' equity
of Raptor  were  combined  with the  Company's  respective  accounts at recorded
values.  Prior period financial  statements have been restated to give effect to
the merger.

The following is a reconciliation  of revenues and net loss previously  reported
by the Company for the three and nine month  periods  ended  September 30, 1997,
with the combined amounts  currently  presented in the financial  statements for
those two periods:

<TABLE>
<CAPTION>
(in thousands)                     For the Three Months Ended                            For the Nine Months Ended
                                       September 30, 1997                                    September 30, 1997
                          ---------------------------------------------       ------------------------------------------------
<S>                       <C>            <C>             <C>                  <C>             <C>              <C>
                            AXENT          Raptor          Combined             AXENT            Raptor           Combined
                          -----------    ------------    --------------       -----------     -------------    ---------------

Revenues                   $  9,739         $  7,332           $17,071         $ 27,155          $ 19,621           $ 46,776
                               
Net income (loss)             1,568            1,353             2,921          (23,656)             (874)           (24,530)

</TABLE>
                                     - 8 -
<PAGE>

During 1997, AXENT acquired  AssureNet  Pathways,  Inc. ("AssureNet") by issuing
1,550,000  shares of  AXENT  common stock in exchange for all of the outstanding
shares of AssureNet preferred and common stock and certain outstanding AssureNet
stock  options  and  warrants,  when exercised.   In addition, AXENT assumed all
other  AssureNet  stock  options  and  warrants  outstanding  at the time of the
merger.

AssureNet's   operations   have  been  included  in  the   Company's   condensed
consolidated financial statements since January 7, 1997, and the acquisition was
accounted for using the purchase method of accounting.  The total purchase price
of $32 million was allocated to the net assets acquired based on their estimated
fair market value, which included approximately $2.9 million of tangible assets;
$1.5 million in purchased  software which is being amortized over three years on
a straight-line  basis; and approximately  $27.6 million of in-process  research
and development based on the products' net present value using a discounted cash
flow model. The in-process  research and development was expensed at the date of
the  acquisition.  After the  acquisition,  AXENT ceased to actively  market the
majority of AssureNet hardware products and has focused its efforts on marketing
the Defender software products and related hardware tokens.

Net Income Per Common Share

During 1997, the Company adopted Financial  Accounting Standards Board Statement
No. 128,  "Earnings per Share,"  ("SFAS 128") to calculate net income per share.
Basic earnings per common share have been computed by dividing net income by the
weighted average number of common shares outstanding during the period.  Diluted
earnings  per share have been  computed by dividing  net income by the  weighted
average number of common shares  outstanding  plus an assumed increase in common
shares  outstanding for dilutive  securities.  Potentially  dilutive  securities
consist of options and warrants to acquire  common  stock for a specified  price
and  their  dilutive  effect  is  measured  using  the  treasury  method.  These
potentially dilutive securities have been excluded from the diluted earnings per
share  calculation for each period  presented in which they were  anti-dilutive.
Earnings per share for all periods  presented  have been  restated to conform to
SFAS 128.

The following  table  reconciles  the weighted  average  number of common shares
during each period for basic earnings per share with the  comparable  amount for
diluted earnings per share.

<TABLE>
<CAPTION>

<S>                                                    <C>               <C>            <C>              <C>    
                                                        For the Three Months Ended          For the Nine Months
(in thousands)                                                September 30,                  Ended September 30,
                                                       -----------------------------    -----------------------------
                                                            1998             1997              1998             1997
                                                       -------------     -------------    -------------     ------------
Weighted average shares outstanding - (basic)                24,807          22,793          24,322           22,474
Stock options and warrants                                    1,219           2,698              --               --
                                                       -------------     -------------    -------------    ------------- 
Weighted average shares outstanding - (diluted)              26,026          25,491          24,322           22,474
                                                       =============     =============    =============    =============
</TABLE>
 
                                     - 9 -
<PAGE>

Discontinued Operations

In mid-1994, the Company  made a strategic decision to focus its business on the
information  security  market  and to divest  itself of  products  and  services
unrelated to such business.  The following  businesses have been divested by the
Company:  (i) the storage management  products business,  which was sold in 1994
for cash,  notes and the  assumption  of certain  liabilities,  (ii) the OpenVMS
utility software  distribution  business,  which was conveyed to Raxco Software,
Inc.  ("Raxco") in a spin-off effective December 31, 1995 and (iii) the Helpdesk
products business,  which was sold in February 1996, for cash, a note, royalties
and the assumption of certain  liabilities.  The results of operations for these
divested  businesses  have been  accounted  for as  discontinued  operations  in
accordance with Accounting Principles Bulletin No. 30, "Reporting the Results of
Operations-Reporting  the Effects of  Disposal  of a Segment of a Business,  and
Extraordinary, Unusual and Infrequently Occurring Events and Transactions" ("APB
30").

Adoption of Accounting Pronouncements

The  Financial  Accounting  Standards  Board has issued  Statement  of Financial
Accounting  Standards No. 130,  "Reporting  Comprehensive  Income" ("SFAS 130"),
which is effective for fiscal years  beginning after December 15, 1997. SFAS 130
requires  additional  disclosures  with respect to certain changes in assets and
liabilities  that  previously  were not  required  to be  reported as results of
operations  for the period.  Effective  for the fiscal year ending  December 31,
1998, the Company has adopted SFAS 130.

The American  Institute of Certified Public  Accountants has issued Statement of
Position  97-2  ("SOP  97-2"),  "Software  Revenue  Recognition".  SOP  97-2  is
effective for transactions entered into in fiscal years beginning after December
15,  1997,  and  provides  guidance on applying  generally  accepted  accounting
principles in recognizing revenue on software transactions.  The Company adopted
SOP 97-2 at the beginning of January  1, 1998,  and  the Company does not expect
the  adoption  of  this  standard  to  have  a  material impact on the Company's
financial position or results of operations.

Recent Accounting Pronouncements

The  Financial  Accounting  Standards  Board has issued  Statement  of Financial
Accounting  Standards No. 131,  "Disclosures About Segments of an Enterprise and
Related Information" ("SFAS 131"), which is effective for fiscal years beginning
after December 15, 1997. SFAS 131 specifies  revised  guidelines for determining
an entity's operating  segments and the type and level of financial  information
to be  disclosed.  The Company does not expect the adoption of this  standard to
have a  material  impact on the  Company's  financial  position  or  results  of
operations. 


                                     - 10 -
<PAGE>


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

Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations contains forward-looking statements within the meaning of Section 21E
of the Securities Exchange Act of 1934 and Section 27A4 of the Securities Act of
1933, which involve risk and uncertainties. These forward-looking statements are
identified by the use of the words "believes", "expects", "anticipates", "will",
"would" or similar  expressions  that contemplate  future events.  The Company's
actual  results  may differ  significantly  from the  results  discussed  in the
forward-looking statements.  Factors that might cause such a difference include,
but are not limited to, those  identified in "Certain  Factors  Affecting Future
Performance"  (see below) and those discussed in the "Risk Factors" set forth in
the Company's  Prospectus/Joint  Proxy Statement dated January 2, 1998, as filed
with the SEC on January 5, 1998. The Company  assumes no obligation to update or
correct  forward-looking  statements  due to events or changes after the date of
this report.

                Three Months Ended September 30, 1998 Compared to
                      Three Months Ended September 30, 1997

Net Revenues

The Company's net revenues from product licenses increased  approximately 40.5%,
or $5.47 million,  from $13.49 million for the three months ended  September 30,
1997 to $18.96 million for the three months ended  September 30, 1998. For those
periods in 1997 and 1998, net revenues from product licenses  represented  79.0%
of total net  revenues.  The  increase in product  license  revenue is primarily
attributable to the continued broader acceptance of the Company's products,  the
introduction  and general  release of new products or versions and the expansion
of available products running on new or additional platforms.

The Company's net revenues from services increased approximately 41.0%, or $1.47
million,  from $3.58  million for the three months ended  September  30, 1997 to
$5.05  million for the three months ended  September  30, 1998.  The increase in
services  revenues is  primarily  attributable  to growth in the  customer  base
purchasing  maintenance and increased  implementation  consulting services.  For
those periods in 1997 and 1998, net revenues from services  represented 21.0% of
total net revenues.

Revenues from  North  American  and  International  operations  were 70% and 30%
of total revenues,  respectively,  for the three months ended September 30, 1998
as  compared  to 82% and 18%,  respectively,  for the same  period in 1997.  The
increase in the  International  revenues as a percentage  of total  revenue from
1997 to 1998 are attributable to continued  acceptance of the Company's products
in international markets, particularly in the United Kingdom and Europe.

Cost of Net Revenues

The Company's cost of net revenues  includes cost of media,  product  packaging,
documentation  and other production  costs,  amortization of purchased  software
costs,  product  royalties,  and the  direct  and  indirect  costs of  providing
technical support,  training and consulting services to the Company's customers.
Cost of net revenues  increased  approximately  47.5%,  or $796,000,  from $1.67
million for the three months ended  September  30, 1997 to $2.47 million for the
three months ended  September 30, 1998. For those periods in 1997 and 1998, cost
of net revenues  represented 9.8% and 10.3% of net revenues,  respectively.  The
increase in the cost of net revenues is primarily  attributable  to the increase
in staff of the Company's  customer support and consulting  services  operations
necessary  to support a larger  installed  customer  base as well as  additional
products  offered by the  Company.  Cost of net  revenues,  as a  percentage  of
revenues,  may fluctuate from period to period due to a change in product mix, a
change in the number or size of transactions recorded in a quarter,  integration
of acquired  operations  or products,  or an increase or decrease in licenses of
royalty-bearing products.





                                     - 11 -
<PAGE>
Sales and Marketing

Sales and marketing  expenses consist  primarily of personnel  costs,  including
commissions,  salaries,  benefits  and  bonuses,  travel,  telephone,  costs  of
advertising,  public  relations  seminars and trade shows.  Sales and  marketing
expenses  increased  26.9%,  or $2.10 million,  from $7.78 million for the three
months  ended  September  30, 1997 to $9.88  million for the three  months ended
September  30, 1998.  For those  periods in 1997 and 1998,  sales and  marketing
expenses  represented 45.6% and 41.2% of total net revenues,  respectively.  The
increase  in dollar  amount was due to the an increase in sales staff to support
the  Company's  growth.  The  decrease  in sales  and  marketing  expenses  as a
percentage  of total net revenues was due  primarily to the greater  increase in
total net revenues.  The Company currently anticipates that the dollar amount of
sales and  marketing  expenses  will  increase as the Company  continues to hire
additional staff to support the Company's growth in future periods.

Research and Development

Research  and  development   expenses  consist  primarily  of  personnel  costs,
including  salaries,  benefits and bonuses,  travel and other  personnel-related
expenses of the employees  engaged in ongoing research and development  projects
and third-party development contracts. Costs related to research and development
of  products  are  expensed  as  incurred.  Research  and  development  expenses
increased 39.6%, or $1.23 million, from $3.12 million for the three months ended
September  30, 1997 to $4.35  million for the three months ended  September  30,
1998.  For those  periods in 1997 and 1998,  research and  development  expenses
represented 18.3% and 18.1% of total net revenues, respectively. The increase in
dollar amount  resulted  from the addition of staff needed to develop,  maintain
and  enhance  the  Company's  software  products  in an effort to keep pace in a
dynamic market where security  needs and demands are  constantly  changing.  The
Company currently anticipates that the dollar amount of research and development
expenses will increase as the Company continues to commit substantial  resources
to research and development in future periods.

General and Administrative

General and  administrative  expenses  consist  primarily  of  personnel  costs,
including  salaries,  benefits  and bonuses and  related  costs for  management,
finance  and  accounting,  legal and other  professional  services.  General and
administrative  expenses decreased 6.7%, or $114,000, from $1.69 million for the
three  months  ended  September  30, 1997 to $1.58  million for the three months
ended  September  30,  1998.  For those  periods in 1997 and 1998,  general  and
administrative  expenses  represented  9.9%  and  6.6% of  total  net  revenues,
respectively.  The decrease is primarily a result of the  synergies  gained from
the  elimination of overlapping  administrative  functions  associated  with the
Raptor acquisition.  The Company currently anticipates that the dollar amount of
general and  administrative  expenses will increase as the Company  continues to
hire additional staff to support the Company's growth in future periods.

Income (Loss) from Continuing Operations before Royalties, Interest and Taxes

Income from continuing operations before royalties, interest and taxes increased
$2.92 million from $2.8 million for the three months ended September 30, 1997 to
$5.72  million for the three months ended  September  30, 1998.  The increase is
primarily  attributable to the decrease in non-recurring  charges as well as the
overall  increase in world-wide  revenues at a greater rate than the increase in
operating expenses incurred to generate such revenues.

Royalty Income

Royalty  income  consists of amounts  payable to AXENT pursuant to the Exclusive
Distributor License Agreement with Raxco related to the OpenVMS utility software
products  owned by AXENT.  Royalty  income  declined  48.3%,  or $358,000,  from
$741,000 for the three months ended September 30, 1997 to $383,000 for the three
month period ended September 30, 1998. This decline is primarily attributable to
declining revenues recognized by Raxco for these products as a result of erosion
of market share that the OpenVMS  platform  has  experienced  world-wide.  AXENT
expects  that the amount of royalty  income  will  continue to decline in future
periods.  For the three month period ended September 30, 1998, Raxco reported to
the Company approximately $1.28 million of OpenVMS utility revenues.
 
                                     - 12 -
<PAGE>

Interest Income

Interest  income  increased  6.4%, or $74,000,  from $1.15 million for the three
month  period  ended  September  30,  1997 to $1.23  million for the three month
period ended  September 30, 1998.  Interest  income may fluctuate from period to
period due to changes in investment mix,  varying cash balances and fluctuations
in interest rates.

Income Taxes

The Company  accounts for income taxes under  Statement of Financial  Accounting
Standards No. 109,  "Accounting for Income Taxes" ("SFAS 109").  Under SFAS 109,
deferred  tax  assets  and   liabilities  are  recognized  for  the  future  tax
consequences  attributable  to  differences  between  the  carrying  amounts  of
existing  assets and  liabilities  for  financial  statement  purposes and their
respective tax basis. The Company's subsidiaries have a history of net operating
losses  making  the  realization  of its  tax  credit  carryforwards  uncertain.
Accordingly,  the  Company  placed a partial  valuation  allowance  against  the
deferred tax assets of its subsidiaries.

The Company  recorded a tax benefit  related to its taxable loss from continuing
and  discontinued  operations for the three months ended September 30, 1997. The
Company  recorded a tax provision  related to its taxable income from continuing
operations for the three months ended September 30, 1998. The effective rate for
the three months ended September 30, 1998 was approximately 35%.

Income (Loss) from Continuing Operations

As a  result  of the  above,  the  Company  recorded  a profit  from  continuing
operations  of $4.76  million  for the three  months  ended  September  30, 1998
compared to a profit of $2.92  million for the three months ended  September 30,
1997.


                Nine Months Ended September 30, 1998 Compared to
                      Nine Months Ended September 30, 1997

Net Revenues

The Company's net revenues from product licenses increased  approximately 42.2%,
or $15.63 million, from $37 million for the nine months ended September 30, 1997
to $52.63  million for the nine  months  ended  September  30,  1998.  For those
periods in 1997 and 1998, net revenues from product licenses  represented  79.1%
and 78.7% of total net revenues,  respectively.  The increase in product license
revenue is primarily  attributable  to the continued  broader  acceptance of the
Company's  products,  the  introduction  and general  release of new products or
versions and the  expansion of available  products  running on new or additional
platforms.

The Company's net revenues from services increased approximately 45.8%, or $4.47
million,  from $9.77  million for the nine months  ended  September  30, 1997 to
$14.24  million for the nine months ended  September  30, 1998.  The increase in
services  revenues is  primarily  attributable  to growth in the  customer  base
purchasing  maintenance and increased  implementation  consulting services.  For
those periods in 1997 and 1998, net revenues from services represented 20.9% and
21.3% of total net revenues, respectively.

Revenues from North American and  International  operations  were 72% and 28% of
total  revenues,  respectively,  for the nine months ended September 30, 1998 as
compared to 79% and 21%, respectively, for the same period in 1997. The increase
in  the  International  revenues as a percentage  of total revenue from 1997 to 
1998  are  attributable  to  continued  acceptance  of the Company's products in
international  markets,  particularly in the United Kingdom and Europe.

                                     - 13 -
<PAGE>
Cost of Net Revenues

The Company's cost of net revenues  includes cost of media,  product  packaging,
documentation  and other production  costs,  amortization of purchased  software
costs,  product  royalties,  and the  direct  and  indirect  costs of  providing
technical support,  training and consulting services to the Company's customers.
Cost of net revenues increased approximately 53.0%, or $2.38 million, from $4.50
million for the nine months ended  September  30, 1997 to $6.88  million for the
nine months ended  September 30, 1998. For those periods in 1997 and 1998,  cost
of net revenues  represented 9.6% and 10.3% of net revenues,  respectively.  The
increase in the cost of net revenues is primarily  attributable  to the increase
in staff of the Company's  customer support and consulting  services  operations
necessary  to support a larger  installed  customer  base as well as  additional
products  offered by the  Company.  Cost of net  revenues,  as a  percentage  of
revenues,  may fluctuate from period to period due to a change in product mix, a
change in the number or size of transactions recorded in a quarter,  integration
of acquired  operations  or products,  or an increase or decrease in licenses of
royalty-bearing products.

Sales and Marketing

Sales and marketing  expenses consist  primarily of personnel  costs,  including
commissions,  salaries,  benefits  and  bonuses,  travel,  telephone,  costs  of
advertising,  public  relations  seminars and trade shows.  Sales and  marketing
expenses  increased  27.3%,  or $6.14 million,  from $22.48 million for the nine
months  ended  September  30, 1997 to $28.62  million for the nine months  ended
September  30, 1998.  For those  periods in 1997 and 1998,  sales and  marketing
expenses  represented 48.1% and 42.8% of total net revenues,  respectively.  The
increase in dollar amount was due to the  additional  sales staff to support the
company's growth.  The decrease in sales and marketing  expenses as a percentage
of total net  revenues was due  primarily  to the greater  increase in total net
revenues.  The Company currently anticipates that the dollar amount of sales and
marketing  expenses  will increase as the Company  continues to hire  additional
staff to support the Company's growth in future periods.

Research and Development

Research  and  development   expenses  consist  primarily  of  personnel  costs,
including  salaries,  benefits and bonuses,  travel and other  personnel-related
expenses of the employees  engaged in ongoing research and development  projects
and third-party development contracts. Costs related to research and development
of  products  are  expensed  as  incurred.  Research  and  development  expenses
increased  42.8%, or $3.8 million,  from $8.88 million for the nine months ended
September  30, 1997 to $12.68  million for the nine months ended  September  30,
1998.  For those  periods in 1997 and 1998,  research and  development  expenses
represented 19.0% of total net revenues.  The increase in dollar amount resulted
from the addition of staff needed to develop, maintain and enhance the Company's
software  products in an effort to keep pace in a dynamic  market where security
needs and demands are constantly  changing.  The Company  currently  anticipates
that the dollar amount of research and development expenses will increase as the
Company continues to commit substantial resources to research and development in
future periods.

General and Administrative

General and  administrative  expenses  consist  primarily  of  personnel  costs,
including  salaries,  benefits  and bonuses and  related  costs for  management,
finance  and  accounting,  legal and other  professional  services.  General and
administrative expenses decreased 13.8%, or $717,000, from $5.21 million for the
nine months ended  September 30, 1997 to $4.49 million for the nine months ended
September  30,  1998.   For  those  periods  in  1997  and  1998,   general  and
administrative  expenses  represented  11.1%  and  6.7% of total  net  revenues,
respectively.  The decrease is primarily a result of the  synergies  gained from
the  elimination of overlapping  administrative  functions  associated  with the
Raptor acquisition.  The Company currently anticipates that the dollar amount of
general and  administrative  expenses will increase as the Company  continues to
hire additional staff to support the Company's growth in future periods.

Non-Recurring Charges

In the nine months ended  September  30, 1997,  the Company  incurred a one-time
charge  associated  with the  acquisition of AssureNet of  approximately  $27.63
million to expense the purchased  in-process  research and development  that had
not reached  technological  feasibility and had no probable future uses, as well
as a one-time  charge of $6.52  million,  $4.24  million  net of taxes,  for the
write-off of purchased in-process  technology associated with the acquisition of
a perpetual  license and its underlying  products from Open Market,  Inc. In the
nine months ended September 30, 1998, the Company  incurred a one-time charge of
$17.42 million,  $13.3 million net of taxes, for severance,  investment banking,
legal, and accounting fees, and other costs related to the merger with Raptor.
                                     - 14 -
<PAGE>

Income (Loss) from Continuing Operations before Royalties, Interest and Taxes

Loss from continuing  operations before royalties,  interest and taxes decreased
$25.22 million from a loss of $28.44 million for the nine months ended September
30,  1997 to a loss of $3.22  million for the nine months  ended  September  30,
1998. The decrease is primarily  attributable  to the decrease in  non-recurring
charges as well as the overall increase in world-wide revenues offset in part by
the investments required to generate such revenues.

Royalty Income

Royalty  income  consists of amounts  payable to AXENT pursuant to the Exclusive
Distributor License Agreement with Raxco related to the OpenVMS utility software
products owned by AXENT. Royalty income declined 33.4%, or $757,000,  from $2.27
million for the nine months ended  September  30, 1997 to $1.51  million for the
nine months ended September 30, 1998. This decline is primarily  attributable to
declining revenues recognized by Raxco for these products as a result of erosion
of market share that the OpenVMS  platform  has  experienced  world-wide.  AXENT
expects  that the amount of royalty  income  will  continue to decline in future
periods.  For the nine month period ended September 30, 1998,  Raxco reported to
the Company approximately $5.03 million of OpenVMS utility revenues.

Interest Income

Interest income decreased 2.5%, or $85,000, from $3.4 million for the nine month
period ended September 30, 1997 to $3.31 million for the nine month period ended
September 30, 1998.  Interest  income may fluctuate from period to period due to
changes in investment  mix,  varying cash balances and  fluctuations in interest
rates.

Income Taxes

The Company  accounts for income taxes under  Statement of Financial  Accounting
Standards No. 109,  "Accounting for Income Taxes" ("SFAS 109").  Under SFAS 109,
deferred  tax  assets  and   liabilities  are  recognized  for  the  future  tax
consequences  attributable  to  differences  between  the  carrying  amounts  of
existing  assets and  liabilities  for  financial  statement  purposes and their
respective tax basis. The Company's subsidiaries have a history of net operating
losses  making  the  realization  of its  tax  credit  carryforwards  uncertain.
Accordingly,  the  Company  placed a partial  valuation  allowance  against  the
deferred tax assets of its subsidiaries.

The Company recorded a tax provision related to its taxable loss from continuing
and  discontinued  operations  for the nine months ended  September 30, 1997 and
1998.  The  effective rate excluding  non-recurring charges  for the nine months
ended  September  30, 1998 was approximately 36%.

Income (Loss) from Continuing Operations

As a result of the above, the Company recorded a loss from continuing operations
of $755,000 for the nine months ended September 30, 1998,  compared to a loss of
$24.79 million recorded for the nine months ended September 30, 1997.

Income from Discontinued Operations

Income from  discontinued  operations  consists of the net results of operations
from the divested  businesses  of the  Company,  which for  financial  statement
purposes have been accounted for in accordance with APB No. 30 and classified as
discontinued  operations.  The  Company's  income from  discontinued  operations
decreased from $255,000 for the nine month period ended September 30, 1997 to $0
for the nine month  period  ended  September  30,  1998.  The Company  currently
anticipates no further income from discontinued operations.

                                     - 15 -

<PAGE>

Certain Risks and Uncertainties

Year 2000

The  Company is in the  process of  assessing  the Year 2000  compliance  of its
software  products,  the  software  and  hardware  systems used for its internal
operations and the systems used by its resellers, distributors and suppliers who
the Company expects may be material to its business after 1999.

The current  versions of the Company's products have been designed and tested to
process  Year 2000 date data  without  interruption  or error,  and the  Company
believes  that  the  current  version  of  each  of  its  product  offerings  is
substantially  Year 2000  compliant.  The Company  expects to continue Year 2000
testing of the current  version of its products.  The cost of continued  testing
cannot  currently be estimated,  and will be included in the Company's  research
and development expenses as incurred.  Even with those efforts,  there can be no
assurance that undetected errors or defects will not exist that could cause Year
2000 compliance problems in the Company's products.  Such problems may result in
litigation and contractual claims by customers and increased expenses negatively
affecting the Company's future operating results. In the worst case, litigation,
claims  and  increased  expenses  could have a  material  adverse  effect on the
Company's business, results of operations and financial condition,  although the
Company  currently  believes  such a result to be unlikely.  In addition,  older
versions of the Company's products may not be Year 2000 compliant, and customers
who have not subscribed for product  maintenance  and installed new versions and
updates supplied to them may be required to migrate to compliant versions of the
Company's  products  or suffer  possible  Year 2000  problems.  Migrating  those
customers to current versions of the Company's  products may result in increased
expense  levels for the Company and defocus in  development  of new products and
enhancement of existing  products,  and customers who fail to migrate to current
versions may commence litigation or make contractual claims against the Company,
which may have a material  adverse  effect on the Company in the worst case. The
Company expects that Year 2000 issues may alter the purchasing  patterns of some
of its customers or prospective  customers,  which could have a material adverse
effect on the Company's business and results of operations.

The Company is  assessing  Year 2000 risk to its internal  information  systems,
hardware systems and business equipment  containing  embedded chips. The Company
expects to  procure or replace  internal  information  systems  material  to its
business in the course of developing and expanding its information  systems. The
Company anticipates that those new systems will be Year 2000 compliant, and will
obtain  contractual  protections  against  Year  2000  problems;  those  systems
currently  are expected to be installed  and tested for Year 2000  compliance by
June  1999.  There can be no  assurance  that  those  systems  will  operate  as
warranted after 1999 or that contractual protections will adequately protect the
Company from loss and adverse  material  effects.  The Company also has begun to
obtain  questionnaires  or written  assurances  from  suppliers of equipment and
software  used in the  Company's  operations  that such  products  are Year 2000
compliant,  and is currently unable to estimate the costs of replacing any items
that  are  determined  not  to be  Year  2000  compliant.  Failure  of  internal
information systems, equipment or third-party software to operate properly after
1999 could disrupt the Company's business and result in unanticipated expense to
repair or replace the defective item, which could adversely affect the Company's
business,  operating  results and financial  condition.  The Company has not yet
developed  contingency plans in the event of failure of such systems,  equipment
or third-party software.

The  Company  has begun to assess the Year 2000  compliance  of systems  used by
distributors,  resellers and suppliers, including utility and telecommunications
providers,  who the Company  expects may be material to its business after 1999.
This assessment process generally consists of obtaining completed questionnaires
or written assurances  regarding  anticipated Year 2000 compliance.  The Company
expects that this process will continue  through 1999. There can be no assurance
that all  distributors,  resellers and  suppliers  from whom  questionnaires  or
assurances  are  requested  will  respond  adequately  to the  Company  or  that
responses  received by the  Company  will be accurate  and  complete.  Year 2000
problems experienced by distributors, resellers and suppliers of the Company may
result in disruption  of the  Company's  business and may require the Company to
obtain alternative sources of distribution and supply, if possible.  The Company
has  not yet  developed  contingency plans in  the  event of  Year 2000 problems
experienced by its distributors, resellers or suppliers.

                                     - 16 -
<PAGE>

Euro Conversion

The  Company  also is  assessing  the  effect of the  adoption  by the  European
Economic  and  Monetary  Union of a single  currency  commencing  in 1999 on the
Company's  European  operations.   Although  many  of  the  Company's  reseller,
distributor and license agreements with European companies  currently are dollar
denominated,  the Company is engaged in an ongoing  assessment  of the effect of
euro issues on product  pricing,  contracts,  accounting  systems  and  internal
operations.  The Company expects that its accounting and administrative  systems
will  be  upgraded  to  address   currently   anticipated  euro  issues  without
significant  material  costs  related  to  those  issues  and  that it will  not
experience significant operational disruptions with respect to euro issues.

Financial Condition-Liquidity and Capital Resources

The Company's overall cash and cash equivalents were $59.47 million at September
30, 1998,  an increase of  approximately  $7.85  million from $51.62  million at
December 31, 1997.  During the nine month periods  ended  September 30, 1997 and
1998,  respectively,  the Company financed its operations primarily through cash
reserves and  available  working  capital.  The Company's  continuing  operating
activities provided  cash of $2.91 million and $4.47 million for the nine month 
periods ended September  30, 1997 and 1998, respectively.  Net cash provided by 
operating  activities  in the  nine months ended  September 30, 1998, consisted 
primarily of net income before acquisition costs and payments.

The Company made capital  expenditures of approximately  $1.79 million and $5.19
million  for  the  nine  month  periods  ended  September  30,  1997  and  1998,
respectively. These purchases have generally consisted of computer workstations,
networking  equipment,  office furniture and equipment.  The Company had no firm
commitments for capital expenditures as of September 30, 1998.

During the nine month  period  ended  September  30, 1998,  the  Company's  cash
position was also affected by the following:  1) the Company had cash outlays of
approximately   $9.73  million  for  transaction   costs   associated  with  the
acquisition of Raptor;  2) the Company  received  proceeds of $9.88 million from
the  issuance of common  stock for stock option  exercises  and  employee  stock
purchase plan; 3) the Company purchased $64.03 million of marketable securities;
4)  the  Company  received  $62.66  million  from  the  maturity  of  short-term
investments;  and 5) the Company received  proceeds of $389,000 from the sale of
common stock of MTI Technology Corporation.

The Company believes that cash generated from operations, together with existing
sources of  liquidity,  will be  sufficient  to meet its  capital  expenditures,
working capital and other cash  requirements  for the next twelve months and the
foreseeable future.

Certain Factors Affecting Future Performance

Although the Company has  experienced  significant  growth in revenues  from its
software  products,  the  Company  does  not  believe  prior  growth  rates  are
necessarily  indicative of future operating  results.  In addition,  the Company
expects increased competition and intends to invest significantly in its product
development. As a result, there can be no assurance that the Company will remain
profitable  on a  quarterly  or  annual  basis.  Due  to the  Company's  limited
operating history with respect to many of its software products,  predictions as
to  future  operating  results  are  difficult.  Future  operating  results  may
fluctuate due to factors such as: demand for the  Company's  products;  the size
and timing of customer  orders;  the effect of Year 2000 testing and remediation
expenses on customers'  budgets;  the number of competitors  and the breadth and
functionality of their product  offerings;  the introduction of new products and
product enhancements by the Company or its competitors;   a decrease in revenues
from distributors or resellers of the Company's products; the budgeting cycle of
customers;  changes  in the proportion of revenues attributable  to license fees
and consulting services;  the availability of services personnel to demonstrate,
install,  configure  and  implement products;  changes in the level of operating
expenses;  competitive conditions in the industry;  and  changes in technologies
affecting  computing,   networking,  communications,  systems  and  applications
management  and data  security.  The  Company's  future  operating  results also
may be affected if it fails to recognize the  anticipated benefits of recent and
future  acquisitions  (including  that of Raptor) on the timetable  projected by
AXENT;  those benefits include,  among others,  integration of product offerings
and coordination of sales, marketing and research and development teams  without
disruption or unanticipated  expense. The Company's future results of operations
may  also  be  adversely affected  if  the  anticipated integration  of acquired
companies' (including Raptor's) operations produces unexpected expenses, delays,
inefficiencies, loss of key personnel, loss of resellers or distributors or loss
of  consultants  or  if  it  leads  to  adverse  effects  on customer purchasing
decisions.

                                     - 17 -
<PAGE>


The market for the Company's software products is highly competitive,  and AXENT
expects  that  it  will  face  increasing   price  pressures  from  its  current
competitors and new market entrants. As a result of increasing  consolidation in
the  information  security  industry,  the Company  expects  that it will become
subject  to  increased   competition,   which  may  negatively  impact  existing
collaborative,  marketing,  reselling,  distribution or marketing  agreements or
relationships and thereby  materially  adversely affect the Company's  financial
condition and results of operations.  Any material reduction in the price of the
Company's  software  products  would  negatively  affect gross margins and could
materially  adversely  affect the Company's  financial  condition and results of
operations.

The  licensing  of  many of the  Company's  enterprise-class  software  products
generally involve significant testing by and education of prospective  customers
as well as a  commitment  of  resources  by both  parties.  For  these and other
reasons,  the  sales  cycle  associated  with  the  licensing  of the  Company's
enterprise-class  security  software products is typically long and subject to a
number of significant risks over which the Company has little or no control and,
as a result,  the Company may expend  significant  resources  pursuing potential
sales that will not be consummated.

The Company  anticipates that  international  sales will continue to represent a
significant percentage of revenue in the foreseeable future. International sales
are subject to a number of risks,  including  unexpected  changes in  regulatory
requirements,  export limitations on encryption technologies,  tariffs and other
trade  barriers,   political  and  economic   instability  in  foreign  markets,
difficulty in the staffing,  management and  integration of foreign  operations,
longer payment cycles,  greater  difficulty in accounts  receivable  collection,
currency fluctuations and potentially adverse tax consequences.  The uncertainty
of the monetary  exchange values has caused,  and may in the future cause,  some
foreign  customers  to delay new orders or delay  payment for  existing  orders.
These factors may, in the future,  contribute to  fluctuations  in the Company's
financial condition and results of operations. Although the Company's results of
operations  have not been materially  adversely  affected to date as a result of
currency fluctuations, the long-term impact of currency fluctuations,  including
any  possible  effect on the  business  outlook in other  developing  countries,
cannot be predicted.

The Company has experienced  significant quarterly fluctuations in its operating
results and anticipates such  fluctuations in the future.  Generally,  revenues,
operating  income and net income have been higher in the fourth  quarter of each
year than in the first quarter of the following year with the exception of 1997,
when the  accounting  treatment  of the  AssureNet  acquisition  mitigated  that
historic trend.  The Company  believes that fourth calendar quarter revenues are
positively  impacted by the end of year budgeting cycles of some large corporate
customers,  as well as the annual  nature of the  Company's  sales  compensation
plans.  Revenues  also tend to be lower in the summer  months,  particularly  in
Europe, when businesses often defer purchase decisions.  However, past financial
performance  should  not be  considered  to be a  reliable  indicator  of future
performance.  Quarterly  revenues and operating results depend on the volume and
timing  of  orders   received,   which  may  be  affected  by  large  individual
transactions  and which  sometimes  are  difficult to predict,  especially  with
regard to orders received through indirect  distribution  channels.  The Company
historically has recognized a substantial portion of its license revenues in the
last month of each quarter,  and often in the last week of each  quarter,  which
makes financial  predictions  especially difficult and raises a substantial risk
of variance of actual  results from  expectations;  this is expected to continue
for the foreseeable future as the portion of revenues from indirect distribution
channels increases.

This  Form  10-Q and the  foregoing  Management's  Discussion  and  Analysis  of
Financial   Condition  and  Results  of  Operations   contains   forward-looking
statements that involve risks and uncertainties  that could cause actual results
to differ materially. Factors that might cause or contribute to such differences
include,  but are not limited to those discussed in this section  ("Factors that
May   Affect   Future   Performance")   and  the   section   of  the   Company's
Prospectus/Joint  Proxy Statement dated January 2, 1998 entitled "Risk Factors".
Readers  should  carefully  review the risks  described in other  documents  the
Company has filed from time to time with the SEC, including the annual report on
Form 10-K and the other  quarterly  reports on Form 10-Q filed or to be filed by
the  Company  in 1998.  Readers  are  cautioned  not to rely on  forward-looking
statements.  The Company has no obligation to publicly  release any revisions to
forward-looking  statements or reflect events or circumstances after the date of
filing of this Form 10-Q.

                                     - 18 -


<PAGE>


Item 3.           QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

        Not applicable.



PART II. OTHER INFORMATION


Item 1.           Legal Proceedings.

         The  Delaware  Court of  Chancery  conducted  a hearing in August  1998
regarding a proposed  settlement of an action  entitled  Usher Fisher v. William
Kaiser,  et.  al., a purported  class  action on behalf of the  stockholders  of
Raptor  against  Raptor,  the  members  of  Raptor's  Board and the  Company  in
connection with the merger of Raptor and the Company.  As more fully reported in
Item 1 of Part II of the Form 10-Q of the Company for the period ended March 31,
1998,  the parties to the action had reached  agreement  in principle in January
1998 to settle the action, including an agreement by Raptor to circulate certain
additional  information  to  its  stockholders  prior  to  the  meeting  of  its
stockholders  to approve the merger and an agreement by the plaintiff  generally
to refrain from  further  proceedings  pending  approval by the court of a final
settlement  and  approval  of the  merger by the  stockholders  of  Raptor.  The
settlement  approved by the Delaware Court of Chancery dismissed the action with
prejudice  and  discharged  all claims by the  plaintiff  or the  members of the
purported  class  against  the  defendants  and certain  others  relating to the
subject  matter of the  action,  the  merger  transaction  among  Raptor and the
Company and certain related matters. Plaintiff's counsel applied for an award of
counsel  fees and expenses of  $250,000,  which was  approved by the court,  and
which was paid by Raptor.

                                     - 19 -
<PAGE>


Item 6.           Exhibits and Reports on Form 8-K.
<TABLE>
<CAPTION>

(a)       The following exhibits are filed or incorporated by reference, as stated below:

     <S>   <C>          <C>   
Exhibit Number                           Description

     3.1   (1)          Amended and Restated Certificate of Incorporation of AXENT.
     3.2   (2)          Amended and Restated Bylaws of AXENT.
     4.1   (1)          Specimen stock certificate for shares of Common Stock of AXENT.
     10.1  (1)          AXENT's 1991 Amended and Restated Stock Option Plan.
     10.2  (3)          AXENT's 1996 Amended and Restated Stock Option Plan.
     10.3  (3)          AXENT's 1996 Amended and Restated Directors' Stock  Option Plan.
     10.8  (1)          Settlement Agreement effective as of September 13, 1991, by and among
                        AXENT and the parties thereto.
     10.9  (1)          Form of  Indemnification  Agreement between AXENT and its directors
                        and executive officers.
     10.11 (1)          Lease Agreement dated as of September 6, 1995, by and between Research Grove Associates and
                        AXENT.
     10.11A*            Second Amendment dated September 18, 1998 to Lease Agreement by and between Research Grove
                        Associates and AXENT.
     10.12 (1)          Lease of Real Property dated as of March 7, 1995, by and between TNK Associates and AXENT.
     10.14 (1)          Agreement dated as of December 30, 1987, by and between AXENT and William R. Davy.
     10.15 (1)          Agreement dated as of September 20, 1990, by and between AXENT and William R. Davy.
     10.16 (1)          Agreement dated as of November 7, 1991, by and between AXENT and William R. Davy.
     10.17 (4)          Memorandum of Understanding regarding certain compensation and severance matters relating to
                        Richard A. Lefebvre, dated July 22, 1997.
     10.21 (1)          Exclusive Distributor License Agreement, effective as of December 31, 1995, between
                        AXENT and Raxco Software, Inc.
     10.22 (1)          Administrative Services Agreement, effective as of December 31, 1995, between the Company and
                        Raxco Software, Inc.
     10.24 (1)          Agreement and Plan of Separation, effective as of December 31, 1995, between AXENT and Raxco
                        Software, Inc.
     10.29 (3)          Amended  Agreement  and Plan of Merger  among AXENT,
                        Axquisition, Inc., and AssureNet Pathways, Inc, dated as
                        of January 6, 1997 and amended February 26, 1997.
     10.30 (5)          AXENT's 1998 Employee Stock Purchase Plan.
     10.31 (5)          AXENT's 1998 Incentive Stock Plan.
     10.32 (5)          AXENT's Exchange Option Plan for Optionees of Raptor Systems, Inc.
     10.33 (5)          Agreement and Plan of Merger among AXENT, Axquisition Two, Inc. and Raptor Systems, Inc. dated
                        as of December 1, 1997.
     10.34*             AXENT's Executive Severance General Guidelines.
     10.35*             Lease Agreement dated as of April 23, 1998 by and between Pracvest and AXENT.
     10.36*             Lease Agreement  dated as of May 6, 1997 by and  between  CC&F
                        Second Avenue Trust and Raptor Systems, Inc.
     10.36A*            First Amendment to Lease dated as of December 15, 1997 by and between CC&F Second Avenue
                        Trust and Raptor Systems, Inc.
     21.1  (6)          Subsidiaries of the Registrant.
     27 *               Financial Data Schedule

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

(1)      Previously  filed as an exhibit to AXENT's  Registration  Statement  on
         Form S-1 (File No. 333-01368) and incorporated herein by reference.
(2)      Previously filed as an exhibit to AXENT's Quarterly Report on Form 10-Q 
         for the Quarter Ended September 30, 1996.
(3)      Previously  filed as an exhibit to AXENT's  Registration  Statement  on
         Form S-4 (File No. 333-20207) and incorporated herein by reference.
(4)      Previously filed as an exhibit to AXENT's Quarterly Report on Form 10-Q
         for the Quarter Ended September 30, 1997.
(5)      Previously  filed as an exhibit to AXENT's  Registration  Statement  on
         Form S-4 (File No. 444-43265) and incorporated herein by reference.
(6)      Previously  filed as an exhibit to AXENT's  Annual  Report on Form 10-K
         for  the  year  ended   December  31,  1997  (File  No.   0-28100)  and
         incorporated herein by reference.
 *       Filed herewith.

(b)      AXENT filed  no reports  on  Form 8-K  during  the three  month  period  
         ended September 30, 1998.

</TABLE>

                                      -20-
<PAGE>



                                   SIGNATURES


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


                                    AXENT TECHNOLOGIES, INC.


Date: November 16, 1998             By: /s/ Robert B. Edwards, Jr.
                                    --------------------------------------------
                                    Robert B. Edwards, Jr.
                                    Vice President and
                                    Chief Financial Officer
                                    (Principal Financial and Accounting Officer)



                                     - 21 -




                                                                  EXHIBIT 10.11A


                    SECOND AMENDMENT TO LEASE AGREEMENT DATED
      SEPTEMBER 6, 1995 AND AMENDMENT ON OCTOBER 20, 1995, ENTERED INTO BY
         AND BETWEEN RESEARCI I GROVE ASSOCIATES, A VI RG I NIA LI MITED
                            PARTNERSIHIP, AS LANDLORD
                         AND AXENT TECHNOLOG IES, INC.,
    A DELAWARE CORPORATION, (Succcssor-ln-Interest to RAXCO, Inc.) AS TENANT



     THIS SECOND  AMENDMENT TO LEASE  AGREEMENT is made this 18 Day of September
1998, by and between Research Grove Associates,  A Virginia Limited  Partnership
("Landlord"),  and AXENT Technologies,  Inc. a Delaware  Corporation  (Successor
In-Interest to RAXCO, Tue.) (herein after referred to as "Tenant")

                                    RECITALS:


 R-1.    Landlord and Tenant entered into a Lease  Agreement  dated September 6,
         1995 and  Amended on October  20, 1995 (the  "Lease"),  whereby  Tenant
         leased from Landlord approximately 13,508 rentable square feet of space
         in  Landlord's  building  commonly  known as  Research  West  II,  2400
         Research Boulevard,  Rockville,  MD 20850 for a term commencing October
         9, 1995, and ending February 28, 1999 as more particularly described in
         the Lease.

 R-2.    Tenant now desires to increase the size of the Demised  Premises and to
         lease from Landlord  effective the later of October I, 1998 or the date
         Landlord tenders possession of that certain portion of the second (2nd)
         floor  containing  approximately  12, 850 rentable  square feet ("First
         Expansion  Space") as shown on Exhibit "A-I " which is attached  hereto
         and made a part hereof. This suite shall be known as suite 250.

 R-3.  Landlord and Tenant desire to extend the Term of the Lease upon the terms
set forth herein.

 R-4  Landlord   desires  to  provide   Tenant  with  a  credit  for   leasehold
improvements.

         NOW THEREFORE in consideration of the Demised Premises, (the sum of ten
         dollars ($10.00) and other good and valuable consideration, the receipt
         and sufficiency of which are hereby  acknowledged,  Landlord and Tenant
         do hereby agree as follows:

1.  Recitals:         The recitals are incorporated herein by this reference.

2.  Term:             The Term of the Lease for Suites 200 and 250 is hereby
                      extended through the last day of February 2004.


3.   Premises: Effective as of the later of October 1, 1998 or the date
     Landlord tenders possession of the First Expansion Space to Tenant, Section
     1 of the Lease is hereby amended to reflect that the First  Expansion Space
     (as shown on Exhibit "A-1" which is attached  hereto and made a part hereof
     containing  approximately 12, 850 rentable square feet of space),  shall be
     added to and become part of the  Demised  Premises,  whereupon  the Demised
     Premises shall contain a total of 26,358 rentable square feet of space.

4.   Rent:

          A. Minimum Rent (as defined in Section 3 of the Lease),  for the First
     Expansion Space shall be as follows: First Expansion Space through February
     28, 1999,  the annual Minimum Rent for the First  Expansion  Space shall be
     Three  Hundred  Fourteen  thousand  Eight  Hundred  Twenty Five and xx/I 00
     Dollars ($314,825.00),  payable in advance on the first day of the month in
     installments  of Twenty Six  Thousand  Two  Hundred  Thirty Five and 42/100
     Dollars ($26,235.42).

               B.  Effective  March I,  1998,  the annual  Minimum  Rent for the
          Demised  Premises (which includes the First Expansion  Space) shall be
          Six Hundred Forty Five Thousand Seven Hundred  Seventy One and xx/l 00
          Dollars ($645,771.00) payable in advance on the first day of the month
          in  installments  of Fifty Three Thousand  Eight Hundred  Fourteen and
          25/100 Dollars ($53,814.25).


<PAGE>


   5. Pro Rata
       Share
                                                                 Pro Rita Share:


                                                                  Improvement
   6.Improvement
    Allowance:





7. Ratification
                                                                  Ratification:


Tenant's  Pro Rata Share upon  commencement  of the Term of the First  Expansion
Space Premises shall be Twenty-One and 21/100 Percent (21.21%).

The Tenant Improvement Allowance for the Demised Premises shall be Three Hundred
Ninety Five `thousand Three Hundred Seventy live Dollars ($395,370.00),  payable
March 1,1999 within thirty (30) days of the date Landlord tenders  possession of
the First Expansion Space to `Tenant.

Except as  modified  herein  above,  the L.ease  shall  remain in full force and
effect in  accordance  with its  terms,  and is  hereby  ratified,  adopted  and
confirmed by Landlord and Tenant.


<PAGE>




                                            
         IN WITNESS  WHEEREOF,  Landlord  and Tenant  have  caused  this  Second
Amendment to be executed by their duly authorized representatives as of the date
first above written.


  WITNESS:                                LANDLORD: Research Grove Associates, A
                                          Virginia Limited Partnership




                                   /s/ John T. Kenny
                                   By: John T. Kenney,
                                   Managing General Partner

WITNESS:                                      TENANT: AXENT Technologies, Inc



                                            /S/ Robert B. Edwards, Jr.
                                            Name: Robert B. Edwards, Jr.
                                            Title:  VP and CFO





<PAGE>


                                                                   EXHIBIT 10.34

                           AXENT Technologies, Inc.
         Compensation Committee - Executive Severance General Guidelines

<TABLE>
<CAPTION>
- ------------------------------- ------------------------ ------------------- ------------------------------------------------------
                                                                                                      New Policy
<S>                              <C>                      <C>                 <C>                           <C>              
         Position (1)              Length of Service          Old Policy         Without change of control    With change of control
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
Chief Executive Officer                 9+ years               Two Years               Two Years                     Two years
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
Chief Operating Officer                   N/A                  One Year                 One year                     One year
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
Executive Vice President                9+ years               One Year                 One Year                     One year
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
Chief Financial Officer                 6+ Years               One Year                 One year                     One year
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
Senior Vice President              Less than one year          60 days                  90 days                      One Year
Or Vice President                  More than 1 year but        Six months               Six months                    One Year
                                   less than 3 years
                                   More than 3 years           One year                 One Year                     One year
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
Other Key employees                                         Up to three months       Up to six months
- ------------------------------- ------------------------- ------------------- ----------------------------- ------------------------
</TABLE>


<PAGE>


                                                                   EXHIBIT 10.35

                                      OFFICE LEASE
                        266 SECOND AVENUE, WALTHAM, MASSACHUSETTS
                                ARTICLE 1 REFERENCE DATA

1.1      Defined Terms.

The terms listed below shall have the following meanings  throughout this Lease:
"DATE OF THIS LEASE":  May 6, 1997 (The date on which both parties have executed
this Lease).

"LANDLORD": CC&F Second Avenue Trust, a Massachusetts  nominee trust "LANDLORD'S
     ADDRESS": c/o Cabot, Cabot & Forbes 99 Summer Street Boston,  Massachusetts
     02110 FAX (617) 737-4975 "TENANT": Raptor Systems, Inc.
"TENANT'S ADDRESS":  Prior to occupancy: 69 Hickory Drive Waltham, MA 02154 From
     and after the Commencement Date for the Phase I Premises: 266 Second Avenue
     Waltham, MA 02154
"BUILDING": The building located at 266 Second Avenue, Waltham, Massachusetts.
"PROPERTY": The Building and the legal parcels (the "Lot") on which the Building
     and its parking  areas are  situated.  The Lot is  described  in Exhibit B,
     attached  hereto.  The term  "Property"  shall also include any  additional
     improvements  constructed  on the  Lot and any  additional  parking  lot or
     garage  providing  parking for the Building as provided in Section  2.1(c).
     "PREMISES":  Initially,  the  space  located  on the  second  floor  of the
     Building,  comprised  of the "Phase I Premises" as shown on Exhibit A. Upon
     the occurrence of the  Commencement  Date for future Phases (as provided in
     Section  2.2) and,  if  applicable,  the First  Floor  Expansion  Space (as
     provided in Section  2.5),  such future Phases shall be included as part of
     the  Premises.  The Phase II Premises and the Phase III Premises  will each
     consist of approximately 9,000 to 10,000 rentable square feet on the second
     floor,  in locations  to be agreed upon by Landlord  and Tenant.  Where the
     context permits,  the term "Phase" as used herein shall include the Phase I
     Premises, the Phase II Premises, the Phase III Premises and, if applicable,
     the First Floor Expansion Space.
"RENTABLE SQUARE FEET IN THE PREMISES": From and after the Commencement Date for
     the Phase I Premises until the Commencement Date for the Phase II Premises,
     approximately 30,000 rentable square feet, subject to final confirmation as
     set out in Section 2.2. From and after the Commencement Date for any future
     Phase,  the  Rentable  Square  Feet in the  Premises  will  increase by the
     rentable  area of  such  Phase.  The  parties  estimate  that  the  Phase I
     Premises, the Phase II Premises and the Phase III Premises will contain, in
     the aggregate,  approximately  49,834  rentable  square feet, and the First
     Floor  Expansion  Space will contain  approximately  10,000 rentable square
     feet.  "TENANT'S  PERCENTAGE":  The  number  (expressed  as  a  percentage)
     obtained  by  dividing  the  Rentable  Square  Feet in the  Premises by the
     rentable  square  feet in the  Building.  The  rentable  square feet in the
     Building is expected to be 95,919, and as a result Tenant's  Percentage for
     the Phase I Premises  (30,000  square  feet) is expected to be 31.28%.  The
     actual  rentable  square feet in the  Building  and in the Phase I Premises
     will be calculated by Landlord's  architect upon  completion of the Phase I
     Premises  and  will  be  set  out in  Landlord's  notice  establishing  the
     Commencement  Date for the Phase I Premises  (which  notice is described in
     Section  2.2(a)).  Tenant's  Percentage will increase upon the Commencement
     Date of each  Phase,  based on  measurements  of each  Phase by  Landlord's
     architect.  Landlord  agrees  that the actual  Rentable  Square Feet in the
     Premises,  in the  aggregate,  will not exceed  50,831  square feet and the
     actual  rentable  square feet in the Building  will be not less than 94,001
     square feet.  "SCHEDULED PHASE I PREMISES  COMMENCEMENT DATE": December 15,
     1997. "SCHEDULED PHASE II PREMISES COMMENCEMENT DATE": The earlier to occur
     of (i) the date which is twelve (12) months after the Commencement Date for
     the Phase I  Premises,  or (ii) the date that is one hundred  twenty  (120)
     days after the date  Landlord  receives  written  notice  from  Tenant that
     Tenant has elected to accelerate  the date of its occupancy of the Phase II
     Premises.  "SCHEDULED PHASE III PREMISES COMMENCEMENT DATE": The earlier to
     occur of (i) the date which is eighteen (18) months after the  Commencement
     Date for the Phase I Premises,  or (ii) the date that is one hundred twenty
     (120) days after the date Landlord receives written notice from Tenant that
     Tenant has elected to accelerate the date of its occupancy of the Phase III
     Premises.  "TERM":  Seventy-eight  (78) calendar months,  commencing on the
     Commencement Date for the Phase I Premises. "BASE RENT": From and after the
     Commencement Date for the Phase I Premises,  through and including the last
     day of the sixtieth  (60th) full calendar  month of the Term, at the annual
     rate of $26.00 multiplied by the Rentable Square Feet in the Premises. (The
     Base Rent is subject to adjustment  prior to delivery of the second segment
     of the Phase I Premises,  as provided in Section  2.2(a)  hereof.) From and
     after the first day of the  sixty-first  (61st) full calendar  month of the
     Term,  through  the  remainder  of the Term,  at the annual  rate of $27.75
     multiplied by the Rentable Square Feet in the Premises. "EXPENSE STOP": The
     product of $7.50  multiplied  by the Rentable  Square Feet in the Premises.
     "PERMITTED USES": General office,  software  development,  and sales office
     purposes  (but not retail  sales),  consistent  with  Section  6.3  hereof.
     "TENANT'S  PARKING SPACES:  The product of .0039 multiplied by the Rentable
     Square Feet in the Premises  (i.e.,  3.9 spaces per 1,000  rentable  square
     feet).  "SECURITY DEPOSIT":  $647,842.00 (subject to adjustment as provided
     in Section  10.24.) The Security  Deposit  shall be provided to Landlord by
     certified  check or  through a letter of  credit,  as  provided  in Section
     10.24. "BROKERS": Avalon Partners, Inc. and Whittier Partners. 1.2 Exhibits
     There are attached  hereto and  incorporated  as a part of this Lease:  (a)
     EXHIBIT  A -  Premises  (b)  EXHIBIT  B - Lot (c)  EXHIBIT  C -  Notice  of
     Commencement Date (d) EXHIBIT D - Form of Clerk's Certificate (e) EXHIBIT E
     - Route 128 Exposure  Area (g) EXHIBIT F -  Description  of the Project (h)
     EXHIBIT G - Tenant's  Special Power and HVAC  Requirements  (i) EXHIBIT H -
     Supplemental Escrow Agreement
<PAGE>


                               ARTICLE 2 PREMISES AND TERM

2.1      The Premises, Common Areas and Parking.

         (a)  Landlord  hereby  leases to Tenant and Tenant  hereby  leases from
Landlord the Premises,  as generally shown on Exhibit A, to be more particularly
described in the final plans described in Section 4.1 hereof.  The Premises does
not include exterior faces of exterior walls and exterior window glass; anything
beyond the interior face of demising walls; and pipes,  ducts,  conduits,  wires
and  fixtures  serving  other  parts  of the  Building,  but  does  include  any
additional  telephone closets or other utility,  mechanical or storage spaces or
facilities made available during the Term for Tenant's exclusive use.

         (b) Tenant  shall also have the right to use the Common Areas in common
with other  tenants.  The Common Areas include the  Building's  common  lobbies,
corridors,  stairways,  loading platforms and elevators, the common walkways and
driveways  necessary for access to the Building,  the common  toilets and shower
areas,  corridors and elevator  lobbies of any  multi-tenant  floor, the parking
lots and/or garages  serving the Building and the Building's  cafe.  Tenant will
have twenty-four (24) hour access to the Premises,  seven (7) days per week. All
use of the  Common  Areas  shall be only  upon the  reasonable  terms  generally
applicable  to all  tenants in the  Building,  as set forth from time to time by
Landlord.

         (c) Tenant shall be entitled to use Tenant's Parking Spaces (set out in
Section 1.1) in the parking lots serving the Building,  which number  includes a
pro rata share of any  handicapped  or visitor  spaces  contained  in such lots;
provided,  however,  that Landlord and Tenant agree that Tenant's Parking Spaces
shall be undesignated  and shall be allocated by Landlord either (i) between the
two existing  parking lots serving the  Building,  or (ii) between such existing
lots and the parking lot(s) located on neighboring  parcels acquired by Landlord
after  the  Date of this  Lease  (provided  that  any  parking  located  on such
neighboring  lots  shall  not be  located  further  from the  Premises  than the
existing  parking lot located  across Second Avenue from the Building) in either
case in proportion to the total number of parking  spaces  existing on each lot.
Landlord may, at its election,  provide the parking on any parking lot described
herein in a parking  garage or structure.  It is understood  that Landlord shall
not be  responsible  for policing said parking lots but that Landlord will limit
the number of parking  spaces  leased to other  tenants in the Building so as to
ensure  that the number of parking  spaces  which  Tenant is entitled to use are
available for Tenant's use. Tenant shall  reasonably  cooperate with Landlord to
assure that Tenant and its employees and visitors observe all reasonable parking
regulations  established by Landlord from time to time and to assure that Tenant
and its employees and visitors do not use more parking spaces than the number of
parking spaces provided to Tenant hereunder.

2.2      Term.

         (a) Both  parties  shall be bound by all the terms of this  Lease as of
the  Date  of  this  Lease.  The  Term  of  this  Lease  shall  commence  on the
Commencement Date for the Phase I Premises, as provided below. Subsequent Phases
shall be added to the Premises on the applicable Commencement Date for each such
Phase.

         The  Commencement  Date for each Phase  shall be the earlier of (i) the
date on which such Phase is Ready for  Occupancy,  but in no event  earlier than
the  Scheduled  Phase I  Premises  Commencement  Date,  the  Scheduled  Phase II
Premises  Commencement  Date, or the Scheduled  Phase III Premises  Commencement
Date, as applicable or (ii) the date on which Tenant begins to conduct  business
within any  portion of such  Phase.  Each Phase shall be deemed to be "Ready for
Occupancy" when the construction of the Leasehold Improvements,  as such term is
defined  in  Section  4.1,  in such Phase has been  substantially  completed  in
accordance  with  the  Final  Plans  pursuant  to  Section  4.1,  as  reasonably
determined  by  Landlord,  and any  certificate  or  approval  required by local
governmental authority for occupancy of such Phase has been obtained.

         Notwithstanding  the  foregoing,  the  delivery of the Phase I Premises
will  occur in two  segments  (a  "segment"),  the first of which  will  contain
between  7,500 and 10,000  square feet and the second of which will  contain the
balance  of the Phase I  Premises.  Not later  than May 23,  1997,  Tenant  will
identify for Landlord the size and location of the first segment. Only the first
segment will be taken into account in determining the Commencement  Date for the
Phase I  Premises.  However,  prior to the  Second  Segment  Rent Date  (defined
below),  the  Base  Rent  and  Additional  Rent due  hereunder  will be  reduced
proportionately  so that Tenant is required to pay Base Rent and Additional Rent
only on the first segment of the Phase I Premises.  The Second Segment Rent Date
will be the later of (i)  January  15, 1998 or (ii) the date on which the second
segment is Ready for Occupancy.

         As soon as may be  convenient  after  the  delivery  of each  Phase (or
segment,  in the case of Phase I),  Landlord  shall  deliver  to Tenant  written
notice   ("Notice")  in  the  form  attached  as  Exhibit  C,  setting  out  the
Commencement Date for such Phase or segment, and the Rentable Square Feet in the
Premises,  the Tenant's  Percentage,  the Base Rent,  and the  Tenant's  Parking
Spaces,  all  adjusted to reflect the addition of such Phase (or segment) to the
Premises.  Tenant shall promptly return to Landlord a countersigned  original of
each Notice.

         (b) Tenant acknowledges that as of the date of this Lease, Landlord has
contracted  in writing to purchase  the  Property  from the current  owner on or
before June 5, 1997,  but has not yet  acquired  the Property or obtained all of
the permits  necessary  for the Project  described in Section 4.1 herein and for
the use of the Property as  contemplated  herein.  Landlord  agrees from time to
time prior to the  Commencement  Date for the Phase I  Premises,  to keep Tenant
informed of its progress  (including,  without  limitation,  providing notice to
Tenant  promptly  after the  acquisition  of the  Property  and  promptly  after
commencement  of  construction),  and to respond to all  reasonable  requests of
Tenant  concerning the status of the Project.  Landlord agrees to use reasonable
efforts to acquire  the  Property  and  commence  construction  of the  building
renovations on or before the respective Target Dates set out below.  However, if
due  to  unanticipated   difficulties,   Landlord  does  not  proceed  with  the
acquisition or development of the Project,  Landlord  agrees to promptly  notify
Tenant and upon such notice this Lease will terminate,  and will thereafter have
no further force and effect, provided that this termination right will expire on
the earlier of (i) the date on which  Landlord  acquires the  Property,  or (ii)
July 1, 1997.  Upon such  termination,  Landlord  and Tenant  shall not have any
further  obligations  or  liability to each other with respect to the Project or
this Lease.

         In the event that  Landlord  has not  acquired  the Property by July 1,
1997 or has not commenced  construction of the building renovations on or before
July 15, 1997 (each such date being referred to herein as a "Target Date"), then
Tenant may give  notice to  Landlord  within ten (10) days after the  applicable
Target  Date,  of its  election to  terminate  this  Lease.  Such notice will be
effective to terminate  this Lease,  in which case neither  party shall have any
further rights,  liabilities,  or obligations hereunder, unless prior to receipt
of such notice the  Landlord  has either  acquired  the  Property  or  commenced
construction  (as  applicable) in which case Tenant's notice shall have no force
and effect.  For  purposes  hereof,  Landlord  will be deemed to have  commenced
construction of the Project when it has entered into a construction contract for
the Project (or if the work is to be performed by more than one contractor,  for
the initial  demolition and renovation work to the Building) and such contractor
has commenced operations on the Property.

         (c) Landlord shall use reasonable  efforts to deliver the first segment
of the Phase I Premises by the Scheduled Phase I Premises Commencement Date, the
second segment by January 15, 1998, the Phase II Premises by the Scheduled Phase
II Premises Commencement Date, and the Phase III Premises by the Scheduled Phase
III  Premises  Commencement  Date.  If any Phase (or  segment)  is not Ready for
Occupancy on the applicable Scheduled Commencement Date for such Phase, Landlord
shall not be subject to any liability for such failure,  except as expressly set
forth below,  and such failure shall not affect the validity of this Lease,  but
Tenant  shall not be liable  for any rent  until the  Commencement  Date for the
applicable  Phase.  Notwithstanding  the foregoing,  if the first segment of the
Phase I Premises are not Ready for  Occupancy  by December  15, 1997,  or if the
second  segment of the Phase I Premises  are not Ready for  Occupancy by January
15, 1998,  Tenant shall  receive one day of free Base Rent for each day delivery
of such segment is delayed  beyond such date,  provided  that (i) such free rent
arrangements  shall not apply to the  extent  that such  delay was caused by any
action or inaction of Tenant or any Force Majeure,  except that any extension of
such December 15 or January 15 date due to Force Majeure  delays will not exceed
sixty  (60)  days,   (ii)  a  failure  of  Landlord's   contractor  to  complete
construction  on  schedule  shall not  constitute  "Force  Majeure"  unless such
failure was attributable to an event which would itself constitute Force Majeure
and (iii) such free rent will only apply to the segment which was the subject of
the delay.

         (d) To the  extent  that  any  Phase  (or  segment)  is not  Ready  for
Occupancy  because Tenant has failed to comply with Tenant's  obligations  under
Section  4.1 or under any work  letter or  construction  agreement  between  the
parties,  or has otherwise  delayed Landlord in preparing any Phase (or segment)
or in obtaining a  Certificate  of Occupancy  for any Phase (or  segment),  then
Tenant will pay to Landlord,  as  additional  rent,  an amount equal to the Base
Rent and  Additional  Rent which would have been payable for the period from (i)
the date that such Phase (or segment) would have been Ready for Occupancy except
for such  Tenant-caused  delay through (ii) the Commencement Date for such Phase
(or segment).

2.3      Extension Option

         (a)  Tenant  shall have the option to extend the Term of this Lease for
two  successive  periods  of five (5) years  each  (such  periods  being  herein
referred to as the "First Extension Period" and the "Second Extension  Period"),
on all of the terms and conditions contained in this Lease, except that Landlord
shall not be obligated to undertake any additional Leasehold Improvements to the
Premises,  the Base Rent and the Expense Stop for each extension period shall be
calculated  as set forth in this Section  2.3, and there shall be no  additional
extension options beyond the Second Extension Period,  the parties agreeing that
the  maximum  Term of this  Lease,  including  extensions,  shall be sixteen and
one-half (16 1/2) years.  Tenant shall exercise each extension  option by giving
Landlord  notice of its  election  to do so,  on or before  the date that is two
hundred  seventy (270) days prior to the  expiration of the initial Term (or the
First Extension Period, as the case may be); provided,  however,  that if Tenant
fails to give timely notice to Landlord of Tenant's exercise of either extension
option,  Tenant shall be deemed to have waived its extension option rights under
this  Section  2.3.  The word  "Term" as used in this Lease  shall  include  the
initial Term, the First Extension  Period and the Second  Extension Period where
the context so requires.

         (b) The  Base  Rent  during  each  extension  period  shall be equal to
ninety-five  percent (95%) of the market  rental value of the  Premises,  taking
into account the applicable  Expense Stop and the other terms of this Lease, the
"as is" condition of the Premises,  and (if  applicable) the absence of a tenant
improvement  allowance and brokerage  commission for the extension period,  but,
with respect to the First Extension Period, in no event lower than the Base Rent
for the last year of the  original  term hereof as set forth in Section 1.1, and
with  respect to the Second  Extension  Period,  in no event lower than the Base
Rent during the First Extension Period (the "Extension  Rent"). The Expense Stop
during each extension period shall be an amount equal to Tenant's  Percentage of
the actual  Operating  Expenses  incurred  in the last full Fiscal Year prior to
Tenant's  notice  of its  election  to  extend  the  initial  Term (or the First
Extension  Period,  as  applicable).  Landlord  shall give Tenant  notice of the
amount of the Extension  Rent  promptly  after Tenant  notifies  Landlord of its
election to exercise either extension  option.  If Tenant agrees with Landlord's
determination  of the  Extension  Rent,  Tenant  shall  notify  Landlord of such
agreement within twenty (20) days after Tenant receives Landlord's notice of the
amount of the Extension Rent. If Tenant disagrees with Landlord's  determination
of the  Extension  Rent,  Tenant may, by notice given to Landlord  within twenty
(20) days after Tenant receives Landlord's notice of the amount of the Extension
Rent, (i) revoke Tenant's  election to exercise the Extension  Option  whereupon
the Extension  Option and all of Tenant's  rights  related  thereto set forth in
this Section 2.3 shall  terminate  or (ii) elect to have the fair market  rental
value for the Premises  determined  by the  appraisal  process  (the  "Appraisal
Process") set forth in subsection  2.3(c) below,  which fair market rental value
determination  shall be binding on both Landlord and Tenant.  If Tenant does not
notify Landlord within such twenty (20) day period of (x) Tenant's  agreement to
the  Extension  Rent,  (y) Tenant's  revocation of its exercise of the Extension
Option, or (z) Tenant's election to have the fair market rental value determined
by the  Appraisal  Process,  the  Extension  Option and all of  Tenant's  rights
related thereto set forth in this Section 2.3 shall terminate.

         (c) Within ten (10) days after Landlord  receives  Tenant's election to
use the Appraisal Process,  if Tenant shall elect to have the fair market rental
value for the Premises determined by the Appraisal Process,  Landlord and Tenant
shall adopt the following procedures:

                  (i)  Landlord  and  Tenant  will  each  promptly   choose  one
         disinterested  real estate  appraisal firm of recognized  competence in
         the greater  Boston area to perform an appraisal.  Each  appraisal will
         determine the fair market  rental of the Premises,  taking into account
         the  quality,  size,  configuration,   Building  amenities,   available
         parking,  the location of the  Building  and the  Premises  (including,
         without limitation,  the Building's proximity and access to Route 128),
         and the then current market rental rates for comparable office space in
         the central Route 128 area.  The two  appraisers  shall within ten (10)
         days after the date of the later appointment  appoint a third appraiser
         satisfying the above qualifications. If the two appraisers cannot agree
         on a third appraiser,  they shall immediately apply to the President of
         the  Greater  Boston  Real  Estate  Board to  select a third  appraiser
         satisfying  the  above  qualifications.  The third  appraiser,  however
         selected,  shall not have acted  previously  in any capacity for either
         Landlord or Tenant.  If either  Landlord or Tenant  fails to appoint an
         appraiser  within the allotted time, the single  appraiser who has been
         appointed shall determine the fair market rental value for the Premises
         for the applicable Extension Period. Each party shall bear the costs of
         its own appraiser and one-half of the cost of the third appraiser.

                  (ii) Within  thirty (30) days after the selection of the third
         appraiser, each of the appraisers shall submit its determination of the
         fair market rental value for the Premises for the applicable  Extension
         Period to Landlord.  None of the  determinations  shall be opened until
         all have  been  submitted.  The  appraisal  furthest  from  the  middle
         appraisal  shall be excluded and the remaining two appraisals  shall be
         added together and their total divided by two; provided,  however, that
         if no  appraisal  is more than ten percent  (10%) more or less than the
         middle appraisal, then all three appraisals shall be added together and
         their total divided by three. The resulting  quotient shall be the fair
         market  rental  value for the Premises  which is used to determine  the
         Extension Rent for the applicable Extension Period.

         (d)  Notwithstanding  any contrary provision of this Section 2.3 or any
other  provision of this Lease,  Tenant's rights to extend this Lease under this
Section 2.3 shall be void and of no effect  unless on the date  Tenant  notifies
Landlord  that it is  exercising  either  extension  option  and on the  date of
commencement of the applicable  Extension Period (i) this Lease is in full force
and effect,  (ii) Tenant is not in default of any of its obligations  under this
Lease beyond any applicable cure periods, (iii) Tenant has neither assigned this
Lease  nor  sublet  fifty  percent  (50%) or more of the  Premises  (except  for
Permitted Transfers),  and (iv) Tenant is occupying at least fifty percent (50%)
of the Premises;  provided,  however,  that Landlord reserves the right to waive
the  provisions  of this  subsection  2.3(c).  The  conditions  described in the
preceding   subparagraphs   (i)  through  (iv)  are   hereinafter   referred  to
collectively as the "Exercise Conditions".

2.4      Right of First Offer.

         If, at any time during the Term of this Lease,  Landlord  constructs an
office  building on the existing  parking lot for the Building  which is located
across  Second Avenue from the Building (the  "Adjacent  Lot"),  and if Landlord
intends to submit a proposal or  proposals  to third  parties for the purpose of
leasing all or any portion of such building,  provided Tenant then satisfies the
Exercise Conditions,  Landlord shall first offer (in writing) to lease up to the
entire  rentable  area of such  building  to Tenant on any terms and  conditions
determined  by  Landlord.  Tenant may accept  Landlord's  offer as to the entire
rentable  area of such  building or as to a portion of such  building,  provided
that such portion  shall  constitute  at least fifty  percent (50%) and not more
than seventy-five percent (75%) of the rentable area of such building. If Tenant
shall not have  accepted  such offer within  thirty (30) days of the date of any
such offer,  the offer  shall  conclusively  be deemed to have been  rejected by
Tenant;  thereafter,  Landlord shall be free to submit proposals, offer to lease
and to lease all or any portion of the proposed building to other parties on any
terms and conditions determined by Landlord,  and this Section 2.4 shall have no
further  force  and  effect.  In the  event  that  Tenant  has  timely  accepted
Landlord's  offer  as to less  than the  entire  rentable  area of the  proposed
building, this Section 2.4 shall have no further applicability to the balance of
space in the  proposed  building.  In  addition,  notwithstanding  any  contrary
provision  of this Section 2.4 or any other  provision  of this Lease,  Tenant's
rights under this  Section 2.4 shall be void and of no further  force and effect
if Tenant fails to satisfy the Exercise  Conditions as of the date of Landlord's
offer of space in the proposed building to Tenant or as of the commencement date
of Tenant's lease of space in the proposed building.

         If  Tenant  accepts  Landlord's  offer to lease  space in the  proposed
building,  Tenant  shall  execute and deliver to Landlord a lease for such space
using the terms of this Lease (except as necessary to incorporate  the terms set
out in  Landlord's  offer)  within thirty (30) days of receipt of the lease from
Landlord.  If Tenant fails to do so, the Landlord  shall  thereafter  be free to
submit proposals, offer to lease and to lease all or any portion of the proposed
building to other  parties as provided  above and this Section 2.4 shall have no
further force and effect.

         The right of first offer set out in this Section 2.4 shall terminate if
Landlord  agrees to sell,  transfer,  convey or ground  lease the  Adjacent  Lot
separately  from the  Building to an unrelated  third  party.  In such event the
provisions of this Section 2.4 shall automatically terminate, and from and after
the date of any such sale, transfer,  conveyance,  or ground lease, Tenant shall
have no rights in and to the First Offer Space or the Adjacent Lot.

2.5      Expansion Option.

         Tenant shall have the right to lease from Landlord  additional space on
the first floor of the Building  consisting  of  approximately  10,000  rentable
square feet of space (in a single block of space) to be  designated  by Landlord
(the "First Floor  Expansion  Space"),  provided  that (i) on or before the date
that is one hundred twenty (120) days after the Commencement  Date for the Phase
I Premises,  Tenant shall give Landlord  written notice of its election to lease
the First Floor Expansion  Space, and (ii) at the time of such notice and on the
Commencement  Date for the First Floor  Expansion  Space,  Tenant  satisfies the
Exercise Conditions,  Tenant hereby agreeing that if Tenant fails to satisfy the
Exercise  Conditions  as of the date of such notice,  or as of the  Commencement
Date for the First Floor Expansion Space, Tenant's rights under this Section 2.5
shall  expire and be of no further  force and effect.  Upon  receipt of any such
notice,  Landlord  and Tenant will prepare  plans for the First Floor  Expansion
Space and  Landlord  shall  improve  the First Floor  Expansion  Space using the
construction  procedures  described in Section 4.1, and the Tenant Allowance and
occupancy  procedures  described in Sections 4.2 and 4.3. The Commencement  Date
for the First  Floor  Expansion  Space  shall be the earlier to occur of (i) the
date on which the First Floor  Expansion  Space is Ready for Occupancy,  as such
term is defined  in  Section  2.2,  or (ii) the date on which  Tenant  begins to
conduct business operations in any portion of the First Floor Expansion Space.

         Upon the  Commencement  Date for the First Floor Expansion  Space,  the
First Floor  Expansion  Space will be included as part of the Premises,  and the
Tenant's  Percentage,  Base  Rent,  Rentable  Square  Feet in the  Premises  and
Tenant's Parking Spaces will be appropriately increased.

2.6      Confirmation of Expiration of Tenant's Rights Under Article 2.

         In the event any of the rights  granted to Tenant under  Sections  2.3,
2.4 or 2.5  expire  and become of no further  force and  effect,  Tenant  hereby
agrees to furnish  Landlord  with an affidavit  or  certificate  confirming  the
expiration  of any such  right  within  twenty  (20) days of a  written  request
therefor from Landlord.  Should the Tenant fail to furnish any such  certificate
or  affidavit  within such twenty  (20) day period,  Landlord  may send a second
request and if Tenant fails to furnish any such  certificate or affidavit within
ten (10) days after such second request,  Tenant hereby  irrevocably  designates
and appoints  Landlord as its  attorney-in-fact  to execute such  certificate or
affidavit in the name of Tenant.

                                     ARTICLE 3 RENT

3.1      Base Rent and Additional Rent.

         Tenant  shall pay  one-twelfth  (1/12th) of the Base Rent each month in
advance on the first day of each calendar month during the Term. For any partial
month at the beginning or end of the Term (or at the time Tenant takes occupancy
of additional Phases,  including the First Floor Expansion Space),  Tenant shall
pay a  proportional  share of the amount  that would be due for a full month and
with respect to a partial  month at the  beginning of the Term, or upon delivery
of any  additional  Phase,  Tenant  shall  pay  such  proportional  share on the
applicable Commencement Date. In addition to the Base Rent, Tenant shall pay all
additional  rent and rental  adjustments  provided herein at the times set forth
herein,  or if no time for  payment is  specified,  then  payment  shall be made
within  thirty (30) days after  Tenant's  receipt of an invoice from Landlord or
another billing authority.  All payments shall be made to Landlord at Landlord's
Address or such other place as Landlord may designate in writing,  without prior
demand and without  deduction or offset except as may be specifically  set forth
herein.  Tenant shall not pay, and Landlord shall not accept, any rental payment
more than one month in advance.

3.2      Adjustment for Operating Expenses.

         (a) Tenant shall pay, as additional  rent,  Tenant's  Share of Expenses
for the Property.

         (b) For each Fiscal Year  during the Term,  Tenant's  Share of Expenses
shall consist of the excess of (i) Tenant's  Percentage  of the total  Operating
Expenses for the Property for that Fiscal Year over (ii) the Expense  Stop.  For
any partial  Fiscal Year at the beginning or end of the Term,  Tenant's Share of
Expenses  shall be  adjusted  proportionately  for the part of the  Fiscal  Year
falling  within the Term.  Tenant's  Percentage  may change if the  Building  is
changed or reconfigured,  but shall in all cases be equal to the percentage that
the Rentable  Square Feet in the  Premises  bears to the total  rentable  square
footage in the Building, calculated on a consistent basis.

         (c) Before each Fiscal Year,  Landlord shall give Tenant an estimate of
the expected Operating Expenses for the Property for the coming Fiscal Year, and
a calculation  of the  estimated  amount of Tenant's  Share of Expenses.  Tenant
shall pay one-twelfth of the estimated amount of Tenant's Share of Expenses each
month with its payment of Base Rent. After the end of each Fiscal Year, Landlord
shall give Tenant a statement  showing the actual  Operating  Expenses  for that
Fiscal  Year,  and a  calculation  of the  actual  amount of  Tenant's  Share of
Expenses.  Any  underpayment  by  Tenant  shall  be made up by cash  payment  to
Landlord within thirty (30) days; any overpayment shall be paid to Tenant within
thirty (30) days at Landlord's option, or shall be credited against the next due
Base Rent,  provided that any overpayment shall be paid in cash to Tenant within
thirty (30) days if the Term has ended.  No delay by Landlord in  providing  any
such statement  shall be deemed a waiver of Tenant's  obligation to pay Tenant's
Share of Expenses.  Tenant shall have the right,  upon not less than 10 business
days'  notice,  to inspect,  audit and copy during  usual  business  hours those
portions of the books and  records  kept by  Landlord,  relating in each case to
costs and expenses for which Tenant has responsibility hereunder. Landlord shall
maintain all books and records, including contracts,  invoices and other similar
evidence of  expenditures,  for at least 5 years  after the end of the  relevant
fiscal year. Tenant may seek reimbursement of its share of any Operating Expense
which it contests  within  twelve (12) months  after the  delivery of the annual
statement of expenses for the year in which Operating Expenses were incurred (or
within  twelve  (12)  months  of  delivery  of  any  supplemental  or  corrected
statement,  with respect to the supplemental information or corrected items.) In
the absence of written notice to Landlord  objecting to any  particular  expense
within  twelve (12) months after  delivery of the annual  statement of expenses,
any right of Tenant to  contest or seek  reimbursement  for  Operating  Expenses
incurred in the period  covered by such  statement  shall be deemed  irrevocably
waived.  Nothing contained herein shall entitle Tenant to offset or withhold any
Base Rent or  additional  rent on account  of any  Operating  Expenses  which it
contests.  Landlord  agrees  that,  except to the extent  Landlord  subsequently
receives bills or invoices,  any correction or adjustment of its calculations of
Operating  Expenses  for any year will occur not later than  twelve  (12) months
after delivery of the annual statement of expenses for such year.

         (d) As used  herein,  the term  "Fiscal  Year"  means any  twelve-month
period  selected by Landlord  for  operating  purposes.  Landlord may change its
Fiscal Year and interim  accounting  periods,  so long as the periods so revised
are  reconciled  with  prior  periods  in  accordance  with  generally  accepted
accounting principles.

         (e) The term "Operating  Expenses" means the total cost of operation of
the Property and shall include without limitation:  (i) Taxes, as defined below;
(ii) all supplies, materials, labor, equipment, and utilities used in or related
to the  operation,  maintenance,  and repair of the Property or any part thereof
(including  without  limitation,  any  operating  costs  incurred by Landlord in
connection  with the  Building's  cafe but not  including the costs of initially
constructing  such  cafe or the  costs of  personnel,  food and  supplies,  rent
subsidies, and provided that such cafe is not leased to a third party for profit
by  Landlord  or  operated  for  profit by  Landlord);  (iii)  all  maintenance,
management,  janitorial,  legal,  accounting,  insurance,  and service agreement
costs  related  to  the  Property  or  any  part  thereof,  including,   without
limitation, service contracts with independent contractors; (iv) assessments and
charges  incurred by Landlord  under any  declaration  of covenants,  easements,
conditions or  restrictions  affecting the  Property,  and (v) costs  (including
financing charges) of improvements to the Property that are designed to increase
safety, improve energy efficiency or otherwise reduce Operating Expenses, or are
required to comply with legal requirements  imposed after the initial completion
of the  Building,  all such  improvements  to be  amortized in  accordance  with
generally  accepted  accounting  principles.  Any of the above  services  may be
performed by Landlord or its affiliates,  provided that fees for the performance
of such  services  shall be  reasonable  and  competitive  with fees  charged by
unaffiliated  entities  for the  performance  of  such  services  in  comparable
buildings  in the area.  Operating  Expenses  shall not  include (1) legal fees,
brokerage commissions,  advertising costs, or other related expenses incurred by
Landlord in connection  with the leasing of space to  individual  tenants in the
Property; (2) repairs, alterations, additions, improvements or replacements made
to  rectify  or  correct  any  defect  in  the  original  design,  materials  or
workmanship  of the  Property  or  common  areas  (but  not  including  repairs,
alterations,  additions,  improvements  or  replacements  made  as a  result  of
ordinary wear and tear);  (3) damage and repairs  attributable  to fire or other
casualty;  (4) damage and  repairs  necessitated  by the  negligence  or willful
misconduct  of  Landlord,  Landlord's  employees,  contractors  or  agents;  (5)
executive  salaries  or salaries  of service  personnel  to the extent that such
personnel  perform  services  not  solely  in  connection  with the  management,
operation,  repair  or  maintenance  of the  Property;  (6)  Landlord's  general
overhead expenses not related to the Property; (7) legal fees, accountants' fees
and other  expenses  incurred in connection  with disputes with other tenants or
occupants of the Property or associated with the enforcement of the terms of any
leases  with  tenants or the defense of  Landlord's  title to or interest in the
Property  or  any  part  thereof;  (8)  costs  (including  permit,  license  and
inspection  fees) incurred in renovating or otherwise  improving,  decorating or
painting or altering  space for tenants or other  occupants  or of vacant  space
(excluding  common areas) in the Property;  (9) damage to the Property caused by
another tenant of the Property;  (10) cost of any service  provided to Tenant or
other occupants of the Property for which Landlord is reimbursed; (11) except as
expressly  provided above  (improvements  to increase  safety,  reduce Operating
Expenses,  etc.) cost and expenses  which would be capitalized  under  generally
accepted   accounting   principles,   including  without  limitation  any  costs
associated  with the base building  work  described in Exhibit F (whether or not
the same would be described in Subsection  3.2(e)(v))  and any costs  associated
with any expansion of the Building or the construction of any structured parking
or other buildings on the Property;  (12) building  management fees in excess of
those charged by  independent  property  managers;  (13) costs  incurred for any
hazardous  waste  cleanup  attributable  to waste which  existed on the Property
prior to the  Commencement  Date for the Phase I Premises;  (14) Landlord's debt
service payments (including principal payments),  and (15) depreciation or other
non-cash  charges.  Landlord shall not collect in excess of one hundred  percent
(100%) of  Operating  Expenses  and shall not recover any item of cost more than
once.  If the  Building is less than 95%  occupied in any Fiscal Year during the
Term,  Operating  Expenses  shall be  calculated as though the Building had been
fully assessed and 95% occupied,  and the result shall  constitute the Operating
Expenses for all purposes  hereunder.  If during all or part of any Fiscal Year,
Landlord is not  performing or furnishing  any item or service to any portion of
the Property  (the cost of which,  if performed or furnished by Landlord to such
portion of the  Property,  would  constitute a part of Operating  Expenses),  on
account of (a) such item or service  not being  required or desired by a tenant,
or (b) any tenant obtaining or providing such item or service itself, or (c) any
other reason,  then,  Operating  Expenses  shall be deemed to be increased by an
amount equal to the additional  costs and expenses which would  reasonably  have
been  incurred  during such period by Landlord if it had  performed or furnished
such item or service to 95% of the Building.

         (f) The term "Taxes" means any form of assessment,  rental tax, license
tax, business license fee, levy,  charge,  penalty,  tax or similar  imposition,
imposed by any authority  having the power to tax,  including any city,  county,
state or federal government,  or any school,  agricultural,  lighting,  library,
drainage or other  improvement or special  assessment  district,  as against the
Property  or any part  thereof or any legal or  equitable  interest  of Landlord
therein,  or  against  Landlord  by  virtue  of its  interest  therein,  and any
reasonable  costs incurred by Landlord in any proceeding for abatement  thereof,
including,  without  limitation,  attorneys' and consultants'  fees.  Landlord's
income and franchise taxes shall not be included in Taxes.  If Landlord  obtains
an  abatement  of any Taxes  relating to any period with respect to which Tenant
paid its share of Operating  Expenses,  Landlord agrees to recalculate  Tenant's
share of Operating  Expenses for such period and (provided Tenant is not then in
default of any of its obligations  hereunder)  refund any overpayment to Tenant.
The  provisions  of  this  Section  shall  survive  the  expiration  or  earlier
termination of this Lease.

                                 ARTICLE 4 CONSTRUCTION

4.1      Leasehold Improvements by Landlord.

         (a) Subject to  Landlord's  acquisition  of the Property and receipt of
all  required  permits  and  approvals,  Landlord  shall,  at its sole  cost and
expense,  rehabilitate  the Building for use as a  first-class  office  building
comparable to other first-class  office buildings in the Waltham area (including
the  installation  of a card access  security system for the Common Areas of the
Building),  and shall perform all work necessary for delivery of the Premises as
"shell  space",  based on the  outline  specifications  and  schematic  drawings
attached  as  Exhibit  F  (the  "Project").  Tenant  agrees  that  Exhibit  F is
descriptive of the general layout and level of finish for the Project, is solely
schematic  and  is  subject  to  refinement  by  Landlord   provided  that  such
refinements do not materially increase the costs of the Leasehold  Improvements.
Without limitation, Landlord may select the materials to be used on all exterior
surfaces of the Building, provided that the exterior walls will consist of glass
curtain  walls in lobby  atrium  areas  and  masonry  (either  brick or  precast
concrete) in the balance of the Building. Landlord shall also be responsible for
constructing,  at its sole cost and expense, a demising wall between the Phase I
Premises and the subsequent  Phases prior to the Commencement Date for the Phase
I Premises,  and a demising wall between the Phase II Premises and the Phase III
Premises prior to the Commencement Date for the Phase II Premises.  All expenses
incurred in connection  with the  construction  of such demising  walls shall be
borne by Landlord, and shall not be deducted from the Tenant Allowance,  as such
term is herein  defined.  Tenant hereby  confirms to Landlord that the power and
HVAC  systems  and  services  described  in Exhibit F will be  adequate  to meet
Tenant's power and HVAC requirements, except to the extent Tenant has identified
in Exhibit G any area of the Premises  that will require  special  power or HVAC
services (any special services will be included in "Improvement  Cost" described
in Section 4.1(c) hereof).  All  construction by Landlord will be completed in a
good and workmanlike manner, using first class materials, in accordance with all
applicable laws, rules, ordinances and regulations.

         (b) Landlord shall construct leasehold  improvements in the Premises on
a Phase by Phase basis in the manner herein described. All such improvements are
herein referred to generally as the "Leasehold Improvements."

         Tenant shall prepare,  at its sole cost and expense,  preliminary space
plans for each Phase,  showing the general  layout of the Phase,  including  the
location of offices and cubicles (the "Preliminary Plans").  Tenant shall submit
the  Preliminary  Plans to Landlord  for its review on or before May 23, 1997 in
the case of the Phase I Premises, and within one hundred eighty (180) days prior
to the applicable  Scheduled  Commencement Date in the case of subsequent Phases
(or, if Tenant  gives  Landlord  notice that it has  elected to  accelerate  its
occupancy  of the Phase II  Premises or the Phase III  Premises,  simultaneously
with  delivery of such  notice).  Tenant may  include  with such plans a list of
proposed  subcontractors.  Landlord agrees to include such subcontractors in the
competitive  bid process  described in subsection (c) below unless it objects to
any such  subcontractor  by notice to Tenant within ten (10) days of its receipt
of such list.  Landlord shall review and price the Preliminary  Plans, and shall
approve or  disapprove  such  plans  within  ten (10) days of its  receipt.  Any
disapproval  by  Landlord  will  set  out the  reasons  therefor.  Tenant  shall
thereupon  revise  the  Preliminary  Plans  based  on  Landlord's  comments  (if
necessary) and shall resubmit the revised  Preliminary  Plans to Landlord within
twenty (20) days of Tenant's receipt of Landlord's notice.

         Upon  Landlord's  and  Tenant's  agreement  as to the final form of the
Preliminary Plans,  Landlord's architect shall prepare and deliver to Tenant and
its consultants, for Tenant's approval (which approval shall not be unreasonably
withheld) the final  architectural  plans for the Leasehold  Improvements  to be
constructed in the Phase (the "Final  Plans"),  which Final Plans shall include,
without  limitation  a layout plan  showing the general  layout of the Phase and
partitions  therein, a reflected ceiling plan, a telephone and electrical outlet
location  plan, a list of  equipment  to be  installed  in the Phase,  plans and
specifications for special millwork requirements, and mechanical, electrical and
plumbing  plans.  Tenant shall review such plans and approve or disapprove  such
plans within ten (10) days of receipt.  Any  disapproval  by Tenant will set out
reasons  therefor.  Landlord  shall  thereupon  revise the Final  Plans based on
Tenant's  comments (if  necessary) and shall resubmit the revised Final Plans to
Tenant  within twenty (20) days of Landlord's  receipt of Tenant's  notice.  Any
failure by Tenant to approve,  disapprove  or comment on the Final Plans  within
the time  required  under this  subsection  shall be deemed to be an approval by
Tenant of such plans.

         Promptly  after  approval  of the Final  Plans by both  parties and the
issuance of a building  permit  therefor,  Landlord  diligently  shall cause the
Leasehold  Improvements for the applicable Phase to be installed,  in accordance
with the Final Plans,  by Landlord's  contractor  in a  first-class  workmanlike
manner,  unless a Change Order is made in accordance with the  requirements  set
forth below.

         In  the  event  Tenant  desires  to  have  the  Leasehold  Improvements
constructed  other than as set forth in the Final Plans and  Landlord and Tenant
subsequently  agree  to a  change  in the  Final  Plans  and any  change  in the
Improvement  Cost resulting from such change,  Landlord's  contractor and Tenant
shall execute a written  agreement  concerning  the scope of the revised work or
materials  desired by Tenant and the cost of such work or  materials  (a "Change
Order").  All costs for labor,  materials,  and the general  contractor's  costs
(which  shall be  limited as set forth  below)  resulting  from a Change  Order,
including  the cost of all plans  prepared  pursuant  thereto (the "Change Order
Costs"),  shall be included in the Tenant Allowance,  as such term is defined in
Section 4.2 herein.  Tenant  hereby agrees that any delay by Tenant in approving
the Final  Plans,  or any request by Tenant for a Change  Order will  constitute
Tenant's agreement to a corresponding  delay in the Scheduled  Commencement Date
for the  applicable  Phase and a  corresponding  delay in the  December  15 date
described in Section 2.2(c).

         (c) The costs of the Leasehold  Improvements (the  "Improvement  Cost")
shall be paid in the manner described in Section 4.2 and shall include the costs
incurred in preparing the Final Plans,  Change Order Costs, permit and insurance
costs, payments to the contractor installing the Leasehold Improvements, and all
other costs incurred by Landlord in connection  with its design or  installation
of  the  Leasehold  Improvements,  but  shall  not  include  (i)  the  costs  of
construction  management services which shall be provided by Landlord at no cost
to Tenant, and (ii) the cost of professional interior design services, which, if
required,  shall be  provided by Tenant at Tenant's  sole cost and  expense.  In
order to reduce the Improvement  Cost,  Tenant shall be permitted to install its
existing  card  access  security  system in the  Premises,  at its sole cost and
expense,  in accordance with all applicable  terms and conditions of this Lease,
provided that such security  system is compatible  with any card access security
system for the Building to be installed  by Landlord.  Landlord  agrees that all
subcontractors  will be subject to a  competitive  bid  process,  provided  that
Tenant timely submits its  Preliminary  Plans and timely  responds to Landlord's
request for approval of Final Plans, and further provided that Landlord reserves
the final right to select  subcontractors,  so long as Landlord  has  reasonable
cause for selecting  any  subcontractor  which was not the low bidder.  Landlord
hereby  agrees that the costs of  Landlord's  general  contractor  attributed to
overhead,  profit  and  general  conditions  shall not  exceed the lesser of (x)
thirteen  percent  (13%)  of  the  total  Improvement  Cost  or (y)  the  amount
(expressed as a percentage of total construction  costs) attributed to overhead,
profit  and  general  conditions  in the  primary  contract  for the  Landlord's
construction work described in Exhibit F.

         (d) The Leasehold Improvements installed in each Phase shall be part of
the Premises and the sole  property of Landlord.  Within  twenty (20) days after
the respective  Commencement  Date for each Phase,  Tenant shall give Landlord a
"punch list" of any items needing correction; any matters not shown on the punch
list (except  latent defects not  discoverable  by visual  inspection)  shall be
deemed  approved by Tenant.  Landlord shall  promptly  correct any items on such
list that, in Landlord's reasonable judgment, require correction.  Except as set
forth herein, Landlord shall have no obligation to improve any Phase.

4.2      Tenant Allowance.

         Landlord  hereby  grants  Tenant an  allowance  in the  amount of up to
twenty-three  dollars  ($23.00)  per  rentable  square  foot of each  Phase (the
"Tenant  Allowance").  To the  extent  that the  Improvement  Cost for any Phase
exceeds  the Tenant  Allowance  for such  Phase,  Tenant  shall,  on the Phase I
Commencement  Date (and on the  commencement  date for each  subsequent  phase),
reimburse  Landlord  the  full  amount  of such  excess  costs  ("Tenant's  T.I.
Payment") as additional rent. Prior to each commencement date Landlord will give
notice to Tenant of any such excess,  which notice  shall be  accompanied  by an
itemization,  in  reasonable  detail,  of the  components of  Improvement  Cost.
Notwithstanding the foregoing,  to the extent Landlord holds back retainage from
its  contractor  which  relates to unfinished  items of Leasehold  Improvements,
Tenant may hold back a corresponding  portion of Tenant's T.I.  Payment and will
pay such amount to Landlord  within  three (3)  business  days after notice from
Landlord  that it intends to pay such  holdback to its  contractor.  If the full
amount of the Tenant  Allowance is not used in connection with the  installation
of the Leasehold Improvements in any Phase, Tenant may use any remaining portion
of the Tenant  Allowance  allocable to such Phase for any future  Phase.  Tenant
will have no rights to use any  portion of the Tenant  Allowance  which  remains
unused after completion of all Phases (including the Expansion Premises,  for so
long as Tenant has rights thereto under this Lease).

4.3      Tenant's Occupancy.

         Landlord agrees that Tenant and its contractors shall have the right of
access to each Phase for purposes of  installing,  at the Tenant's sole cost and
expense,  wiring, cabling and furnishings in such Phase during the fourteen (14)
day period preceding each applicable  Commencement Date upon the following terms
and conditions:

         (a)      The Tenant  coordinates  the  scheduling of the Tenant's early
                  access activities with the Landlord's general contractor so as
                  not to interfere with or delay the completion of the Leasehold
                  Improvements by the Landlord's general contractor;

         (b)      The  Tenant's  use and  occupancy  of each Phase  prior to the
                  applicable  Commencement  Date  shall be upon all of the terms
                  and  conditions  of the  Lease,  except  that no Base  Rent or
                  additional  rent shall be due or payable  with respect to such
                  period.

4.4      Alterations by Tenant.

         (a)  Tenant  shall not make any  alterations,  decorations,  additions,
installations,  substitutes  or  improvements  ("Alterations")  in  and  to  the
Premises,  without first obtaining  Landlord's  written  consent,  which consent
Landlord  shall not  unreasonably  withhold  or delay,  except  that  Tenant may
undertake any  non-structural  Alteration  which does not affect the  Building's
systems or areas outside the Premises and which costs not more than  twenty-five
thousand  dollars  ($25,000)  in  individual  instances  and not more than fifty
thousand  dollars  ($50,000) in the  aggregate in any twelve (12) month  period.
Notwithstanding  the  foregoing,  Tenant  shall have no right to  undertake  and
Landlord shall have no obligation to consent to Alterations that would or could,
in Landlord's  reasonable  judgment (i) violate the Certificate of Occupancy for
the  Premises  or the terms of any  superior  lease or  mortgage  affecting  the
Property,  (ii)  materially  and  adversely  affect the  appearance,  value,  or
structure of the  Building,  (iii)  require  excessive  removal  expenses,  (iv)
materially  and  adversely  affect any other part of the  Building or affect the
mechanical,  electrical,  sanitary or other service systems of the Building, (v)
involve the  installation  of any materials  subject to any liens or conditional
sales  contracts  or (vi)  require  unusual  expense to readapt the  Premises to
ordinary office use on expiration or termination of this Lease. Tenant shall pay
Landlord's reasonable costs of reviewing or inspecting any proposed Alterations.

         (b) All work on any Alterations  shall be done at reasonable times in a
first-class  workmanlike manner, by contractors approved by Landlord,  according
to plans and  specifications  approved  by  Landlord.  All work shall be done in
compliance with all applicable  laws,  regulations,  and rules of any government
agency  with  jurisdiction,  and  with  all  regulations  of the  Board  of Fire
Underwriters  or any similar  insurance  body or bodies.  Tenant shall be solely
responsible  for the effect of any  Alterations on the Building's  structure and
systems,  whether  or  not  Landlord  has  consented  to the  Alterations.  Upon
completion of any Alterations, Tenant shall provide Landlord with a complete set
of "as-built" plans,  unless Tenant requests in writing that Landlord waive such
requirement, which waiver Landlord will not unreasonably withhold.

         (c) Tenant  shall keep the Property  and  Tenant's  leasehold  interest
therein free of any liens or claims of liens, and shall discharge any such liens
within  ten days of their  filing.  Before  commencement  of any work,  Tenant's
contractor  shall provide any  completion  and lien  indemnity  bond required by
Landlord  (only for work which costs twenty five thousand  dollars  ($25,000) or
more),  and Tenant  shall  provide  evidence  of  commercial  general  liability
insurance with such limits as Landlord may reasonably  require,  naming Landlord
as an additional  insured,  and evidence that each contractor and  subcontractor
carries worker's compensation insurance in statutory amounts covering all of its
employees. Tenant shall indemnify Landlord and hold it harmless from and against
any cost,  claim,  or  liability  arising  from any work done by Tenant.  All of
Tenant's work shall (i) be performed in such manner as not to interfere with the
occupancy  of any  other  tenant  in the  Building  nor  delay,  or  impose  any
additional expense upon Landlord in, the construction,  maintenance or operation
of the  Building,  and (ii) be  coordinated  with any work  being  performed  by
Landlord and in such manner as to maintain  harmonious  labor  relations and not
cause any work stoppage or damage the Building or Lot or interfere with Building
construction or operation.  Landlord may post any notices it considers necessary
to protect it from  responsibility or liability for any Alterations,  and Tenant
shall give sufficient notice to Landlord to permit such posting.

         (d) All  Alterations  affixed to the Premises shall become part thereof
and remain therein at the end of the Term.  However,  if Landlord gives Tenant a
notice to remove any  Alterations  at the time any  Alterations  are affixed (or
proposed to be  affixed),  Tenant  shall do so and shall pay the cost of removal
and any repair  required by such  removal.  Any  Alterations  not affixed to the
Premises  and all of Tenant's  personal  property,  trade  fixtures,  equipment,
furniture,  and movable partitions shall remain Tenant's property,  removable at
any time.  The  moveable  supplemental  air  conditioning  units  expected to be
purchased as part of the initial tenant improvements may be removed by Tenant at
the end of the Term if the aggregate  Improvement  Cost for all Phases  exceeded
the total Tenant  Allowance  by an amount which is at least equal to  Landlord's
costs of purchasing  such units,  and Tenant paid such excess as required  under
Section 4.2 hereof.  If Tenant fails to remove any such  materials at the end of
the Term,  they shall be deemed to have been  abandoned  and Landlord may remove
and store them at Tenant's expense,  without  liability to Tenant,  and may sell
them at  public  or  private  sale and apply the  proceeds  to any  amounts  due
hereunder, including costs of removal, storage and sale.

                       ARTICLE 5 LANDLORD'S OBLIGATIONS AND RIGHTS

5.1      Services Furnished by Landlord.

         (a) Landlord shall furnish services, utilities, facilities and supplies
equal in quality to those  customarily  provided  by  landlords  in  first-class
quality  office  buildings  in  the  central  Route  128  area.  Such  services,
facilities and supplies shall include the services described in this Section 5.1
and Section 5.2 and the  following:  (i) cleaning  services for Building  Common
Areas and the Premises,  (ii) rubbish removal, (iii) window cleaning,  (iv) rest
room supplies,  (v) sewer and water service to the Building's  rest rooms,  (vi)
landscape  maintenance,  (vii) snow  removal  for walks,  driveways  and parking
areas,  (viii)  maintenance of plantings in interior Common Areas and, (ix) such
other  services,  utilities,  facilities  and supplies as are being  provided by
other  first-class  office buildings in the central Route 128 area of comparable
size to the  Building.  In the event that  Landlord is prevented or delayed from
providing  any service,  Landlord  shall not be liable to Tenant  therefor,  nor
except as expressly  otherwise  provided in Section 8.1 shall Tenant be entitled
to any abatement or reduction of rent by reason thereof, nor shall the same give
rise to a claim in  Tenant's  favor  that  such  failure  constitutes  actual or
constructive,  total or  partial,  eviction  from the  Premises.  Landlord  also
reserves the right to institute such  policies,  programs and measures as may be
necessary,  required or expedient for the conservation or preservation of energy
services or as may be required to comply with  applicable  laws,  codes,  rules,
regulations or standards.

         (b)  Subject to the  provisions  of Sections  5.1(a) and 6.10  Landlord
shall furnish space heating and cooling as normal  seasonal  changes may require
to  provide  reasonably   comfortable  space  temperature  and  ventilation  for
occupants of the Premises under normal business operation,  daily from 8:00 a.m.
to 6:00 p.m.  (Saturdays  from 9:00 a.m.  to 1:00 p.m.),  Sundays  and  holidays
excepted.  If Tenant shall require  air-conditioning  or ventilation outside the
hours and days above specified,  Landlord shall furnish such service at Tenant's
expense (such expense will be calculated using a method reasonably determined by
Landlord  to  reflect  actual  electric,  maintenance  and  other  expenses  and
management  costs incurred by Landlord in providing such service).  In the event
Tenant  introduces  onto the Premises  equipment  which  overloads  the systems,
and/or in any other way causes  the  systems  not  adequately  to perform  their
proper functions,  supplementary systems may at Landlord's option be provided by
Landlord at Tenant's expense.

         (c)  Subject to the  provisions  of Sections  5.1(a) and 6.10  Landlord
shall  provide  electric  power for  normal  lighting  and office  machine  use.
Tenant's use of electrical  energy in the Premises  shall not at any time exceed
the capacity of any of the  electrical  conductors  or equipment in or otherwise
serving the Premises.  In order to ensure that such capacity is not exceeded and
to avert possible  adverse  effect upon the Building  electric  service,  Tenant
shall not,  without prior consent of Landlord in each  instance,  connect to the
Building  electric  distribution  system any  fixtures,  appliances or equipment
which operate on a voltage in excess of 120 volts nominal or make any alteration
or addition to the electric system of the Premises.  Landlord, at its option and
at Tenant's expense, may require separate metering and billing to Tenant for the
electric  power  required  for any  special  equipment  (such as  computers  and
reproduction  equipment)  that  require  either  3-phase  electric  power or any
voltage other than 120.

         (d) Landlord will construct and maintain during the term hereof a cafe,
as approximately shown and described on Exhibit F, for employees and visitors of
tenants  in the  Building  and others  who may be  permitted  to use the cafe by
Landlord. The cafe will (except in unusual or unforeseen  circumstances) be open
on all business days and will serve hot and cold luncheon meals.

         (e) Landlord shall furnish, at Tenant's expense,  reasonable additional
Building  operation  services  which are usual and  customary in similar  office
buildings  in the  central  Route 128 area upon  reasonable  advance  request of
Tenant at  reasonable  and  equitable  rates  from time to time  established  by
Landlord; such charges, if any, shall be considered to be additional rent.

5.2      Repairs and Maintenance.

         Landlord  shall  repair and  maintain  the  Common  Areas and the roof,
exterior walls and structural  portions of the Building and the basic  plumbing,
electrical,  mechanical and heating,  ventilating and  air-conditioning  systems
therein,  unless such repair or  maintenance  is  attributable  to any action of
Tenant or any matter for which Tenant is  responsible  under the  provisions  of
Section 6.5 hereof.

5.3      Quiet Enjoyment.

         Upon Tenant's  paying the rent and  performing  its other  obligations,
Landlord  shall  permit  Tenant to  peacefully  and  quietly  hold and enjoy the
Premises, subject to the provisions hereof.

5.4      Insurance.

         Landlord  shall insure the Property,  including  the Building,  against
damage by fire and standard  extended  coverage perils,  in the full replacement
cost thereof, and shall carry commercial general liability insurance. The amount
of liability  insurance and the  deductibles on property and liability  policies
will be in such  amounts  as would be  carried  by a prudent  owner of a similar
building in the area.  Landlord  may carry any other forms of insurance as it or
its  mortgagee  may deem  advisable.  Tenant shall have no right to any proceeds
from such  policies.  Landlord  shall not carry any insurance on any of Tenant's
property, and shall not be obligated to repair or replace any of it.

Changes by Landlord

         Landlord  may at any time make any  changes,  additions,  improvements,
repairs or  replacements  to the Property,  including the Common Areas,  that it
considers  desirable and may lay pipes,  conduits,  wires and the like above the
ceiling or in the walls in the Premises,  provided the same are not visible from
within the Premises.  In so doing,  Landlord may use or temporarily close any of
the Common Areas,  or  permanently  change their  configuration.  Landlord shall
maintain  access to the  Premises and shall use  reasonable  efforts to minimize
interference with Tenant's normal  activities,  but no such  interference  shall
constitute  constructive  eviction  or  give  rise to any  abatement  of rent or
liability of Landlord to Tenant.

5.6      Access to Premises; Utility Suspension.

         Landlord  shall  have  reasonable  access to the  Premises  to  inspect
Tenant's performance  hereunder and to perform any acts required of or permitted
to Landlord  herein,  and may temporarily  stop any service or utility system in
conjunction  therewith.  Landlord  shall  use  reasonable  efforts  to  minimize
interference with Tenant's normal  activities,  but no such  interference  shall
constitute  constructive  eviction  or  give  rise to any  abatement  of rent or
liability of Landlord to Tenant.  Landlord  shall at all times have a key to the
Premises,  and Tenant shall not install any additional  lock without  Landlord's
consent.  Any entry into the  Premises by  Landlord,  under this  section or any
other  section of this  Lease  permitting  such  entry,  shall be on  reasonable
advance notice; provided,  however, that such restriction shall not apply to any
situation that Landlord in good faith believes to be an emergency.

5.7      Failure to Provide Services and Repairs.

         (a) Landlord  shall not be liable for any failure to perform any act or
provide any service required  hereunder unless Tenant shall have given notice of
such failure, and such failure continues for at least thirty days thereafter. If
any such failure is caused by factors beyond Landlord's reasonable control, then
Landlord shall not be liable to Tenant in any event.  No such failure whether or
not within Landlord's reasonable control, shall constitute constructive eviction
or give  rise to any  rental  abatement  or  reduction  except  as  provided  in
subsection  5.7(b) and (c), below.  Except as  specifically  provided in Section
10.7,  Tenant hereby waives any right to make repairs or provide  maintenance at
Landlord's expense under any law or ordinance.

         (b) In the event (i)  Landlord  fails to perform any act or provide any
service required hereunder and such failure occurs for reasons other than events
that are beyond  Landlord's  reasonable  control or if Landlord  undertakes work
described in Section 5.5 hereof  which,  for reasons  other than events that are
beyond Landlord's reasonable control,  results in interference with Tenant's use
and  occupancy of the  Premises;  (ii) such failure or  undertaking  causes such
substantial  interference with Tenant's use and occupancy that Tenant cannot use
the  Premises  for the  conduct  of its  business,  and (iii)  such  substantial
interference  continues  after  notice  from Tenant to Landlord in excess of ten
(10)  consecutive  days  (other  than for  causes  which are  beyond  Landlord's
reasonable  control),  Base Rent hereof  shall be abated for the period from the
date of commencement of such substantial  interference to the date on which such
substantial  interference  no  longer  exists;   provided,   however,  that  the
provisions of this subsection (b) shall not apply to occurrences governed by the
provisions of Sections 8.1 or 8.2 hereof.

         (c) In the event that for reasons beyond Landlord's reasonable control,
Landlord (i) fails to perform any act or provide any service required hereunder,
or any undertaking  described in Section 5.5 hereof results in interference with
Tenant's use and  occupancy  of the  Premises;  (i) such failure or  undertaking
causes such substantial interference with Tenant's use and occupancy that Tenant
cannot  use  the  Premises  for the  conduct  of its  business,  and  (ii)  such
substantial  interference  continues  after  notice  from  Tenant to Landlord in
excess of thirty (30)  consecutive  days, Base Rent shall be abated beginning on
the thirty-first  (31st)  consecutive day of such  substantial  interference and
continuing  until  the date on which  such  substantial  interference  no longer
exists; provided,  however, that the provisions of this subsection (c) shall not
apply to occurrences governed by the provisions of Sections 8.1 or 8.2 hereof.

         (d) In the event that (i) Landlord  fails to perform any act or provide
any service  required  hereunder or undertakes any work described in Section 5.5
hereof,  (ii) such failure or undertaking  causes such substantial  interference
with  Tenant's  use and  occupancy  that Tenant  cannot use the Premises for the
conduct of its business and (iii) such  substantial  interference  continues for
one hundred  eighty (180)  consecutive  days,  Tenant may, by written  notice to
Landlord while such substantial interference continues,  elect to terminate this
Lease.  In such case this Lease will terminate on the date which is fifteen (15)
days after such notice  unless such  substantial  interference  is  discontinued
prior to such date.

5.8      Inclusion of Costs in Operating Expenses.

         Nothing in this Article shall be construed to modify the  definition of
Operating Expenses, or otherwise amend the calculation of Operating Expenses.

5.9      Signs.

         Landlord shall provide and install,  at Landlord's expense with respect
to the first such  installation  and at  Tenant's  expense  with  respect to any
subsequent  installation,  letters or  numerals  on the door to the  Premises to
identify Tenant's name and Building address; all such letters and numerals shall
be in the building standard graphics and no others shall be used or permitted on
the  Premises.  Landlord  will  include  Tenant's  name  in a  directory  to  be
maintained in the main and second floor lobbies of the Building.

         In addition, Landlord shall install, at Tenant's sole cost and expense,
up to two (2) exterior wall signs on the Building,  in accordance with the plans
and  specifications  to be delivered by Tenant to Landlord (the  "Tenant's  Wall
Signs"), provided that Tenant's Wall Signs and Tenant's monument sign (described
below)  shall  collectively  comprise not more than sixty  percent  (60%) of the
allowable  signage area for the  Building.  Landlord  shall install the Tenant's
Wall Signs in accordance  with all  applicable  laws,  by-laws,  ordinances  and
codes;  provided,  however,  that Tenant shall be responsible  for obtaining all
permits and other governmental  approvals required in connection with Landlord's
installation  of the  Tenant's  Wall Signs.  Landlord  and Tenant agree that the
Tenant shall have exclusive  signage rights in the area identified as the "Route
128  Exposure  Area" on Exhibit  E.  Tenant's  Wall  Signs  shall be in the most
prominent  location of the exterior wall signs  located on the Property.  Tenant
shall  also  have  the  right,  at  its  cost  and  expense,   to  a  prominent,
non-exclusive  presence  (in  proportion  to the amount of space in the Building
occupied by each tenant) on the monument sign to be  constructed  by Landlord on
the Second Avenue side of the Building.

                              ARTICLE 6 TENANT'S COVENANTS

         Tenant covenants until the end of the Term and for such further time as
Tenant occupies any part of the Premises:

6.1      Payments.

         Tenant  shall  pay when due all Base Rent and all  additional  rent and
other charges of any kind hereunder.

6.2      Repair and Yield Up.

         Tenant shall keep the Premises in good order and  condition,  and shall
promptly repair any damage to the Premises or the rest of the Property caused by
Tenant or its agents, servants, employees, or invitees, licensees or independent
contractors.  Landlord  may  require  such  repair  to be done  by a  contractor
designated  by Landlord at Tenant's  cost,  provided that costs to be charged to
Tenant are  reasonable  and  competitive.  At the end of the Term,  Tenant shall
peaceably yield up the Premises in good order, repair and condition,  except for
reasonable wear and tear and any casualty damage for which Landlord has received
insurance  proceeds.  Tenant  shall  remove its own property and (if required by
Landlord)  any  Alterations,  repairing  any damage  caused by such  removal and
restoring  the Premises and leaving  them clean and neat.  Nothing  herein shall
require Tenant to remove the Leasehold Improvements.

6.3      Use.

         (a) Tenant  shall use the Premises  only for the  Permitted  Uses,  and
shall not use or permit the Premises to be used for any other purpose.  Landlord
warrants  that  under  the  terms of its  special  permit  issued by the Town of
Waltham,  the Building may be used for the Permitted Uses.  Tenant shall not use
or occupy the Premises in violation of: (i) any recorded  covenants,  conditions
and restrictions affecting the Property of which Tenant has been given notice by
Landlord,  (ii) any law or ordinance or any Certificate of Occupancy  issued for
the  Building  or the  Premises,  or (iii) any Rules and  Regulations  issued by
Landlord for the  Building of which  Tenant has been given a copy.  Tenant shall
comply with any directive of any governmental authority with respect to Tenant's
use or occupancy of the Premises.  Tenant shall not do or permit  anything in or
about the Premises which will in any way damage the Premises, cause any noise to
emanate  from the  Premises,  obstruct  or  interfere  with the  rights of other
tenants  or  occupants  of the  Building,  or injure or annoy  them,  or use the
Premises or allow them to be used for any  unlawful  purpose.  Tenant  shall not
cause,  maintain or permit any nuisance in, on or about the Premises,  or commit
or allow  any  waste in or upon  the  Premises.  Tenant  shall  not use  utility
services in excess of amounts reasonably determined by Landlord to be within the
normal range of demand for the Permitted Uses.

         (b)       Tenant  shall not  obstruct  any of the Common Areas or any
portion of the Property
outside the Premises, and shall not place or permit any signs, curtains, blinds,
shades,  awnings,  aerials or flagpoles,  or the like,  visible from outside the
Premises.

         (c) Tenant shall keep the Premises  equipped with all safety appliances
required by law  because of any use made by Tenant  other than  ordinary  office
use, and shall  procure all licenses and permits  required  because of such use.
This provision shall not broaden the Permitted Uses.

         (d)  Tenant  shall  not  place a load  upon the  floor of the  Premises
exceeding  the load per  square  foot such  floor  was  designed  to  carry,  as
determined  by  Landlord  or  its  structural  engineer.   Partitions  shall  be
considered  as part of the load.  Landlord may prescribe the weight and position
of all safes,  files and heavy  equipment  that  Tenant  desires to place in the
Premises, so as properly to distribute their weight.  Tenant's business machines
and mechanical equipment shall be installed and maintained so as not to transmit
noise or  vibration  to the  Building  structure  or to any  other  space in the
Building. Tenant shall be responsible for the cost of all structural engineering
required to determine structural load and all acoustical engineering required to
address any noise or vibration caused by Tenant.

         (e) Tenant shall not keep or use any article in the Premises, or permit
any activity  therein,  which is prohibited by any insurance policy covering the
Building  and  Leasehold  Improvements,  or would  result in an  increase in the
premiums  thereunder.  In determining whether increased premiums are a result of
Tenant's activity, a schedule issued by the organization computing the insurance
rate  on the  Building  or  the  Leasehold  Improvements,  showing  the  various
components of the rate,  shall be  conclusive  evidence.  Tenant shall  promptly
comply with all  reasonable  requirements  of the insurance  authority or of any
insurer  relating to the  Premises.  If the use or occupation of the Premises by
Tenant  or  by  anyone  Tenant  allows  on  the  Premises  causes  or  threatens
cancellation  or reduction of any  insurance  carried by Landlord,  Tenant shall
remedy the condition  immediately upon notice thereof.  Upon Tenant's failure to
do so,  Landlord  may, in addition to any other  remedy it has under this Lease,
enter the  Premises and remedy the  condition,  at Tenant's  cost,  which Tenant
shall  promptly pay as  additional  rent.  Landlord  shall not be liable for any
damage  or injury  caused as a result of such an entry,  and shall not waive its
rights  to  declare a default  because  of  Tenant's  failure.  6.4  Assignment;
Sublease.

         (a) Tenant shall not assign,  mortgage,  pledge or  otherwise  transfer
this Lease or make any sublease of the Premises, or permit occupancy of any part
thereof by anyone other than Tenant (any such act being  referred to herein as a
"Transfer"  and the other  party  with  whom  Tenant  undertakes  such act being
referred  to herein as a  "Transferee")  without  the prior  written  consent of
Landlord.  Without  limitation of the foregoing,  Landlord may refuse consent to
any Transfer to any  governmental  authority or agency or to any Transfer  which
would cause  Landlord to be in  violation of any mortgage on the Property or any
other agreement or instrument. In all other cases, Landlord agrees that it shall
not unreasonably  withhold its consent to any proposed  Transfer of the Premises
by Tenant,  pending  Landlord's  satisfactory  review of the  information  to be
supplied by Tenant  regarding  the proposed  Transferee's  creditworthiness  and
intended use of the Premises,  and the  compatibility of such use with the other
tenants  and the  character  of the  Building.  Any  request  by Tenant for such
consent  shall  be in  writing  and  shall  include  the  name  of the  proposed
Transferee,  the  nature  of its  business  and  proposed  use of the  Premises,
complete information as to its financial condition, and the terms and conditions
of the proposed Transfer.  Tenant shall supply such additional information about
the proposed Transfer and Transferee as the Landlord reasonably requests. Tenant
shall reimburse Landlord for its legal and other expenses in connection with any
request for consent. If Tenant is a corporation,  partnership, or other business
organization, the transfer of ownership interests, whether in one transaction or
a series, forming a majority of the equity interests in Tenant, shall constitute
a Transfer,  unless Tenant is a corporation whose stock is traded on an exchange
or over the counter.  Notwithstanding the foregoing, Landlord's consent will not
be required  for the  following  "Permitted  Transfers":  (i) an  assignment  or
transfer of this Lease to an entity controlling or controlled by or under common
control with Tenant, provided that Tenant gives prompt notice of such assignment
to Landlord  and in such case Tenant  will  remain  fully  liable on a joint and
several basis with the Transferee for all of Tenant's obligations hereunder,  or
(ii) in the event Tenant is acquired by or merged into another entity,  provided
that Tenant gives  prompt  notice  thereof to Landlord and provides  evidence to
Landlord  that the net worth of the entity  succeeding  to Tenant's  interest in
this Lease (measured  after such  acquisition or merger) is greater than the net
worth of Tenant at all times during the one-year period prior to the acquisition
or merger.

         (b) Any Transfer shall  specifically  make applicable to the Transferee
all of the  provisions of this Section so that  Landlord  shall have against the
Transferee  all rights with respect to any further  Transfer which are set forth
herein;  no Transfer  shall affect the  continuing  primary  liability of Tenant
(which  shall be joint and several  with  Transferee);  no consent to any of the
foregoing  in a specific  instance  shall  operate  as a waiver in a  subsequent
instance;  and no Transfer  shall be binding  upon  Landlord or its  successors,
unless  Tenant shall  deliver to Landlord a recordable  instrument  containing a
covenant of  assumption  by the  Transferee  running to Landlord and all persons
claiming by, through or under Landlord. The Transferee's failure to execute such
instrument  shall  not,  however,  release  or  discharge  Transferee  from  its
liability  as a Transferee  hereunder.  Tenant shall not enter into any Transfer
that  provides  for rental or other  payment  based on the net income or profits
derived from the  Premises.  With  respect to any  Transfer,  Landlord  shall be
entitled to receive  fifty  percent  (50%) of all amounts  received by Tenant in
excess of the Base Rent and additional rent reserved in this Lease applicable to
the  space  being  Transferred,  after  deduction  of  all  Tenant's  reasonable
subleasing expenses,  including without limitation,  reasonable attorneys' fees,
brokerage commissions, tenant improvement expenses and free rent.

         (c)      Landlord Option.

                  (1) Right to Cancel. Notwithstanding any contrary provision of
         this Section 6.4 in  connection  with any proposed  Transfer,  Landlord
         shall have an option to cancel and terminate  this Lease if the request
         is to assign  the Lease or to sublet  all of the  Premises;  or, if the
         request  is to sublet a portion  of the  Premises  only,  to cancel and
         terminate this Lease with respect to such portion.  The foregoing shall
         not apply to Permitted Transfers.  Landlord may exercise said option in
         writing within thirty (30) days after Landlord's receipt from Tenant of
         a notice  from  Tenant  that it  intends  to market  the space to other
         potential  tenants  (or, in the absence of such notice,  within  thirty
         (30) days after  Landlord's  receipt from Tenant of a request to assign
         or sublet),  and in each case such  cancellation  or termination  shall
         occur as of the date set forth in Landlord's notice of exercise of such
         option,  which  shall  not be less than  sixty  (60) days nor more than
         ninety (90) days following the giving of such notice.

                  (2) Cancellation.  If Landlord exercises  Landlord's option to
         cancel  this  Lease or any  portion  thereof,  Tenant  shall  surrender
         possession of the Premises, or the portion thereof which is the subject
         of the option, as the case may be, on the date set forth in such notice
         in accordance  with the  provisions of this Lease relating to surrender
         of the  Premises  at the  expiration  of the  Term.  If this  Lease  is
         cancelled  as to a portion of the  Premises  only,  Base Rent after the
         date of cancellation shall be abated on a pro rata basis.

         (d) Any  agreement by which Tenant  agrees to enter into or execute any
Transfer  at the  direction  of any other  party,  or assigns  its rights in the
income arising from any Transfer to any other party,  shall itself  constitute a
Transfer hereunder.

         (e) Any Transfer or attempted  Transfer not in  compliance  with all of
the terms and  conditions  set forth above shall be void, and shall be a default
under this Lease.

         (f)  Notwithstanding any contrary provision of this Lease, Tenant shall
have no right to assign this Lease or sublet all or any portion of the  Premises
and any such assignment or sublease shall be void unless on both (i) the date on
which Tenant notifies  Landlord of its intention to enter into any assignment or
sublease  and (ii) the date on which  such  assignment  or  sublease  is to take
effect,  Tenant is not in default of any of its  obligations  under this  Lease;
provided,  however, that Landlord shall retain the right to waive the provisions
of this Section 6.4(f).

         (g) The  acceptance by the Landlord of the payment of Rent,  additional
rent or other charges  following an  assignment,  subletting  or other  Transfer
prohibited  by this  Section  6.4 shall  not be  deemed  to be a consent  by the
Landlord to any such  assignment,  subletting or other  Transfer,  nor shall the
same constitute a waiver of any right or remedy of the Landlord.

6.5      Waiver and Indemnity.

         Tenant shall  indemnify  Landlord and hold it harmless from and against
any cost,  claim,  action,  liability  or damage  of any kind  arising  from (i)
Tenant's use and  occupancy of the Premises or any activity done or permitted by
Tenant  in, on, or about the  Premises,  (ii) any breach or default by Tenant of
its obligations under this Lease, or (iii) any negligent,  tortious,  or illegal
act or omission of Tenant, its agents, employees,  invitees or contractors.  The
foregoing  shall not apply to loss or damage which is caused by other tenants in
the Building or by Landlord's negligence or willful misconduct. Tenant shall, at
its expense and with counsel  satisfactory  to Landlord,  defend Landlord in any
action or proceeding  arising from any such claim, and shall indemnify  Landlord
against  all  costs  and  fees  of any  kind  incurred  therein.  As a  material
consideration  to Landlord for executing this Lease,  Tenant assumes all risk of
loss,  damage or injury to any person or property  in, on, or about the Premises
from any cause including, without limitation,  theft. Specifically,  and without
limitation of the  foregoing,  Landlord shall not be liable for injury or damage
which may be  sustained  by the person or  property  of Tenant,  its  employees,
invitees,  or any other person in or about the Premises,  caused by or resulting
from fire, steam, electricity, gas, water or rain which may leak or flow from or
into any part of the Premises, or from the breakage,  leakage,  obstruction,  or
other   defects   of   pipes,   sprinklers,    wires,   appliances,    plumbing,
air-conditioning  or lighting  fixtures,  whether such damage or injury  results
from conditions arising upon the Premises, any other portion of the Property, or
other  sources.  Landlord  shall not be liable to Tenant or any other  person or
entity for any damages  arising  from any act or omission of any other tenant of
the Building.

         Landlord shall  indemnify  Tenant and hold it harmless from and against
any cost, claim, action, liability or damage of any kind arising from Landlord's
negligence or willful misconduct.

6.6      Tenant's Insurance.

         (a) Tenant shall maintain the following insurance  throughout the Term:
(i) "All Risk" or Special Form property insurance including, but not limited to,
fire,  extended  coverage,  vandalism and malicious  mischief  coverage upon all
property  owned by Tenant and located in the Building,  in the full  replacement
cost thereof;  (ii) Commercial  General Liability  Insurance to include personal
injury,   bodily  injury,   property   damage   liability   (with  a  broadening
endorsement), premises/operations,  blanket contractual liability, in limits not
less than Five Million Dollars ($5,000,000.00) per occurrence, inclusive, with a
deductible  not to exceed One  Hundred  Thousand  Dollars  ($100,000.00);  (iii)
Workers  Compensation  insurance  with limits at least as required by applicable
law; (iv) Employers  Liability insurance with limits of at least $1,000,000 each
accident, $1,000,000 each employee, and $1,000,000 policy limit for disease; and
(v) Business Interruption Insurance as presently carried by Tenant. The Landlord
shall  have the  right  from time to time to  require  additional  insurance  or
coverages or increase such minimum  limits as Landlord may  reasonably  require,
upon notice to the Tenant.

         (b) All  policies  shall  be  taken  out with  insurers  acceptable  to
Landlord,  in form satisfactory to Landlord,  and shall (i) include Landlord and
any mortgagee of Landlord as additional insureds, as their interests may appear,
(ii) contain a waiver of any right of subrogation against Landlord,  its agents,
employees, and representatives which might arise for any reason, (iii) contain a
cross-liability  endorsement,  and (iv)  contain a provision  that any  coverage
afforded  thereby  shall be  primary  and  noncontributing  with  respect to any
insurance  carried by Landlord,  and any insurance  carried by Landlord shall be
excess and  noncontributing.  Tenant shall provide  certificates of insurance in
form  satisfactory to Landlord before the  Commencement  Date, and shall provide
certificates  evidencing renewal at least ten (10) days before the expiration of
any such policy.  All policies shall contain an  endorsement  requiring at least
thirty (30) days' prior written notice to Landlord and any mortgagee of Landlord
prior to any material change, reduction, cancellation or other termination.

         (c) Upon  termination  of this Lease  pursuant to any casualty,  Tenant
shall  retain any  proceeds  attributable  to  Tenant's  personal  property  and
Alterations  not affixed to the Premises,  but Tenant shall  immediately  pay to
Landlord any  insurance  proceeds  received by Tenant  relating to the Leasehold
Improvements  and any  Alterations  affixed to the Premises  unless Landlord has
required their removal.

6.7      Right of Entry.

         Tenant shall permit  Landlord and its agents to examine the Premises at
reasonable times and make any repairs or replacements  Landlord deems necessary;
to remove, at Tenant's expense, any Alterations,  signs, curtains, blinds or the
like not  consented  to by  Landlord;  and to show the  Premises to  prospective
tenants  during  the last  twelve  (12)  months  of the Term and to  prospective
purchasers and mortgagees at all times.

6.8      Payment of Taxes

         Tenant shall pay before  delinquency all taxes levied against  Tenant's
personal  property  or  trade  fixtures  in the  Premises  and  any  Alterations
installed  by  Tenant.  If any such  taxes are levied  against  Landlord  or its
property, or if the assessed value of the Premises is increased by the inclusion
of a value placed on Tenant's property,  Landlord may pay such taxes, and Tenant
shall upon demand  repay to Landlord  the portion of such taxes  resulting  from
such increase. Tenant may bring suit against the taxing authority to recover the
amount of any such taxes, and Landlord shall cooperate  therein.  The records of
the City  Assessor  shall  determine  the assessed  valuation,  if available and
sufficiently  detailed.  If not so  available  or  detailed,  the actual cost of
construction shall be used.

6.9      Environmental Compliance.

         Tenant shall not cause or allow any hazardous wastes,  toxic substances
or toxic or hazardous  materials  (collectively,  "Hazardous  Materials")  to be
used, generated,  stored or disposed of on, under or about, or transported to or
from, the Premises  (collectively,  "Hazardous  Materials  Activities")  without
first receiving Landlord's written consent, which may be withheld for any reason
and revoked at any time. If Landlord  consents to any such  Hazardous  Materials
Activities, Tenant shall conduct them in strict compliance (at Tenant's expense)
with all applicable Regulations, as hereinafter defined, and using all necessary
and  appropriate  precautions.  Landlord  shall not be liable to Tenant  for any
Hazardous  Materials   Activities  by  Tenant,   Tenant's   employees,   agents,
contractors,  licensees  or invitees,  whether or not  consented to by Landlord.
Tenant  shall  indemnify,  defend with counsel  acceptable  to Landlord and hold
Landlord  harmless from and against any claims,  damages,  costs and liabilities
arising out of Tenant's  Hazardous  Materials  Activities.  For purposes hereof,
Hazardous  Materials  shall include but not be limited to substances  defined as
"hazardous substances", "toxic substances", or "hazardous wastes" in the federal
Comprehensive Environmental Response, Compensation and Liability Act of 1980, as
amended, the federal Hazardous Materials Transportation Act, as amended, and the
federal  Resource  Conservation  and Recovery Act, as amended  ("RCRA"),  or any
other  similar  state,  local  or  federal  law;  those  substances  defined  as
"hazardous wastes" in the Massachusetts  Hazardous Waste Facility Siting Act, as
amended  (Massachusetts  General Laws Chapter 21D); those substances  defined as
"hazardous  materials"  or "oil" in  Massachusetts  General Laws Chapter 21E, as
amended;  and as such  substances  are  defined in any  regulations  adopted and
publications  promulgated  pursuant to said laws (collectively,  "Regulations").
Prior to using,  storing or maintaining any Hazardous  Materials on or about the
Premises,  Tenant shall provide Landlord with a list of the types and quantities
thereof, and shall update such list as necessary for continued accuracy.  Tenant
shall also provide  Landlord  with a copy of any Hazardous  Materials  inventory
statement  required  by any  applicable  Regulations,  and any  update  filed in
accordance with any applicable  Regulations.  If Tenant's  activities violate or
create  a risk  of  violation  of  any  Regulations,  Tenant  shall  cease  such
activities  immediately  upon notice from  Landlord.  Tenant  shall  immediately
notify  Landlord both by telephone  and in writing of any spill or  unauthorized
discharge of Hazardous  Materials or of any condition  constituting an "imminent
hazard" under RCRA. Landlord, Landlord's representatives and employees may enter
the  Premises  at any  time  during  the  Term to  inspect  Tenant's  compliance
herewith.

         Landlord shall  indemnify and hold Tenant harmless from and against any
claims,  damages,  costs and  liabilities  arising  out of the  presence  of any
concentrations  of  Hazardous  Materials  on the Property as of the date of this
Lease,  which are  identified  in the Haley & Aldrich  report for the  Property,
dated  January,  1997,  or the  report  entitled  "Asbestos-Containing  Building
Materials Survey and Inspection at 266 Second Avenue,  Waltham, MA", prepared by
ATC Environmental, Inc., dated January, 1997.

6.10     Utilities

         Tenant shall pay all charges for all separately  metered and separately
billed gas, telephone and other utility services used, rendered or supplied upon
or in  connection  with the Premises and shall  indemnify  Landlord  against any
liability or damage on such account.

         Landlord  shall  install,  at its sole cost and  expense,  a  permanent
electric "check meter" measuring the consumption of electricity in the Premises,
which  shall be read  monthly by  Landlord.  Tenant  shall pay to  Landlord,  as
additional  rent,  the costs of the  electricity  consumed in the  Premises,  as
reflected by the check meter,  within thirty (30) days of billing  therefor.  In
the  event  that  all  or a  portion  of  Tenant's  electrical  service  becomes
separately metered and billed directly by the utility company to Tenant,  Tenant
shall pay, as additional rent, all amounts so billed to the utility company when
due. Landlord agrees to use reasonable  efforts,  as of the date of deregulation
(anticipated  to be January 1, 1998) to negotiate the price of  electricity  and
select  the most  cost  effective  electric  utility  service  provider  for the
Property.

                                    ARTICLE 7 DEFAULT

7.1      Events of Default.

         (a) The  occurrence  of any one or more of the  following  events shall
constitute a default hereunder by Tenant:

               (i) The  failure  by Tenant to make any  payment  of Base Rent or
          additional rent or any other payment required  hereunder,  as and when
          due,  where such failure shall  continue for a period of ten (10) days
          after written notice thereof from Landlord to Tenant.

                           (ii) The  failure by Tenant to observe or perform any
                  of the  express or implied  covenants  or  provisions  of this
                  Lease to be observed  or  performed  by Tenant,  other than as
                  specified  in clause  (i)  above,  where  such  failure  shall
                  continue for a period of more than ten (10) days after written
                  notice  thereof from  Landlord to Tenant;  provided,  however,
                  that if the nature of Tenant's  default is such that more than
                  thirty (30) days are  reasonably  required for its cure,  then
                  Tenant  shall not be deemed to be in default  if Tenant  shall
                  commence   such  cure  within  said   thirty-day   period  and
                  thereafter diligently prosecute such cure to completion, which
                  completion shall occur not later than sixty (60) days from the
                  date of such notice from Landlord.

                           (iii) The failure by Tenant or any  guarantor  of any
                  of Tenant's  obligations  under this Lease to pay its debts as
                  they  become  due,  or Tenant or any such  guarantor  becoming
                  insolvent,  filing or having filed against it a petition under
                  any chapter of the United  States  Bankruptcy  Code, 11 U.S.C.
                  Section  101 et  seq.  (or  any  similar  petition  under  any
                  insolvency   law   of   any   jurisdiction),   proposing   any
                  dissolution,      liquidation,      composition,     financial
                  reorganization or recapitalization  with creditors,  making an
                  assignment or trust mortgage for the benefit of creditors,  or
                  if  a  receiver,   trustee,  custodian  or  similar  agent  is
                  appointed or takes  possession with respect to any property or
                  business of Tenant or such guarantor.

                           (iv) The  attachment,  execution  or  other  judicial
                  seizure of all or  substantially  all of Tenant's  assets,  or
                  this   leasehold,   or  any  other  voluntary  or  involuntary
                  encumbrance of Tenant's leasehold interest hereunder.

         (b) In the event of any such default by Tenant, whether or not the Term
shall have begun, in addition to any other remedies available to Landlord at law
or in equity,  Landlord  shall have the immediate  option,  or the option at any
time while such default  exists and without  further  notice,  to terminate this
Lease  and all  rights of  Tenant  hereunder;  and  Tenant  shall  then quit and
surrender  the  Premises  to  Landlord,   but  Tenant  shall  remain  liable  as
hereinafter provided.

7.2      Damages.

         In the event that this Lease is terminated  under any of the provisions
contained  in Section  7.1 or shall be  otherwise  terminated  for breach of any
obligation  of  Tenant,  Tenant  covenants  to pay  forthwith  to  Landlord,  as
compensation,  the excess of the total rent reserved for the residue of the Term
over the  rental  value  of the  Premises  for  said  residue  of the  Term.  In
calculating  the rent reserved there shall be included,  in addition to the Base
Rent and all additional rent, the value of all other considerations agreed to be
paid or performed by Tenant for said residue (excluding from such considerations
the Tenant's  obligation  to insure the Premises  subsequent to the later of the
termination  of the Lease or the date on which  Tenant  vacates  the  Premises).
Tenant further  covenants as an additional and cumulative  obligation  after any
such  termination to pay punctually to Landlord all the sums and perform all the
obligations  which  Tenant  covenants in this Lease to pay and to perform in the
same manner and to the same extent and at the same time as if this Lease had not
been  terminated.  In  calculating  the  amounts to be paid by Tenant  under the
immediately  preceding covenant Tenant shall be credited with any amount paid to
Landlord as  compensation  as in this Section 7.2 provided and also with the net
proceeds  of any rent  obtained by Landlord by  reletting  the  Premises,  after
deducting all Landlord's  reasonable expenses in connection with such reletting,
including,  without limitation,  all repossession costs,  brokerage commissions,
fees for  legal  services  and  expenses  of  preparing  the  Premises  for such
reletting, it being agreed by Tenant that Landlord may (i) relet the Premises or
any part or parts thereof, for a term or terms which may at Landlord's option be
equal  to or  less  than  or  exceed  the  period  which  would  otherwise  have
constituted the balance of the Term and may grant such concessions and free rent
as Landlord in its sole judgment  considers  advisable or necessary to relet the
same (provided that concessions and free rent will be amortized over the term of
the reletting for purposes of  calculating  the credit for reletting  proceeds),
and (ii) make such  alterations,  repairs  and  decorations  in the  Premises as
Landlord in its sole  judgment  considers  advisable  or  necessary to relet the
same,  and no action of Landlord in accordance  with the foregoing or failure to
relet or to collect  rent under  reletting  shall  operate  or be  construed  to
release or reduce Tenant's liability as aforesaid.

         In lieu of any other  damages or indemnity and in lieu of full recovery
by Landlord  of all sums  payable  under all the  foregoing  provisions  of this
Section 7.2,  Landlord may by written  notice to Tenant,  at any time after this
Lease is terminated  under any of the provisions  contained in Section 7.1 or is
otherwise terminated for breach of any obligation of Tenant and before such full
recovery,  elect to recover,  and Tenant  shall  thereupon  pay,  as  liquidated
damages,  an amount equal to the aggregate of the Base Rent and additional  rent
accrued  under  Sections  3.1 and 3.2 in the 12 months  ended next prior to such
termination plus the amount of Base Rent and additional rent of any kind accrued
and unpaid at the time of  termination  and less the amount of any  recovery  by
Landlord  under the  foregoing  provision  of this Section 7.2 up to the time of
payment of such liquidated damages.

         Nothing  contained in this Lease shall limit or prejudice  the right of
Landlord to prove for and obtain in proceedings  for bankruptcy or insolvency by
reason of the  termination of this Lease, an amount equal to the maximum allowed
by any  statute or rule of law in effect at the time  when,  and  governing  the
proceedings in which, the damages are to be provided,  whether or not the amount
be greater, equal to, or less than the amount of the loss or damages referred to
above.

                              ARTICLE 8 CASUALTY AND TAKING

8.1      Damage by Fire and Other Casualty.

         If the Premises or the Building are damaged by fire or other  casualty,
Landlord  shall repair the damage,  provided (a) such repairs can be made within
one hundred eighty days from the date of such damage ("Repair Period") under all
applicable laws and regulations using reasonable diligence,  but without payment
of overtime or other premiums,  and (b) insurance proceeds are made available to
Landlord in a timely  manner for such repairs.  In such event,  this Lease shall
remain in full force and effect, but rent shall be proportionately  abated while
the repairs are made,  based on the extent of interference  with Tenant's use of
the  Premises  (unless the damage was caused by the act or omission of Tenant or
its agents, employees, invitees or contractors).

         If such  repairs  cannot be made  within  the Repair  Period  under the
conditions  set forth above,  Landlord shall so notify Tenant within thirty days
of the date of such damage. Thereupon,  either party may terminate this Lease by
written notice given within twenty (20) days,  such  termination to be effective
thirty (30) days after the notice of termination.  If neither party  terminates,
Landlord  shall  repair  the  damage,  and the Lease  shall  remain in force and
effect, subject to the rent abatement provisions set forth above.

         If Landlord  fails to commence such repairs within the Repair Period or
thereafter  fails to diligently  pursue such repairs to  completion,  subject to
delays of not more than sixty (60) days in the aggregate  due to Force  Majeure,
Tenant may terminate this Lease by written notice,  and such termination will be
effective  thirty  (30) days after such  notice  unless  Landlord  substantially
completes such repairs prior to the end of such thirty (30) day period.

         Landlord  shall be not be required to repair any damage to the property
of Tenant or any  Alterations.  Nothing herein shall require  Landlord to repair
any casualty occurring during the last six months of the Term.

8.2      Eminent Domain.

         If any part of the Premises is taken or appropriated under the power of
eminent  domain  or  conveyed  in lieu  thereof  (hereinafter,  "Taken"),  which
materially affects Tenant's  occupancy of the Premises,  either party shall have
the right to  terminate  this Lease at its option.  If any part of the  Property
shall be Taken so as to materially  affect the normal operation of the Building,
Landlord  may  terminate  this Lease at its  option.  In either of such  events,
Landlord shall receive subject to the rights of Landlord's  first mortgagee (and
Tenant shall assign to Landlord upon demand from  Landlord),  any income,  rent,
award or any interest thereon which may be paid in connection therewith.  Tenant
shall have no claim against  Landlord for any part of the sums paid by virtue of
such  proceedings,  whether or not  attributable  to the value of the  unexpired
Term.  If a part of the Premises is Taken and neither  party elects to terminate
this  Lease,  but the  Premises  have been  damaged  as a  consequence  thereof,
Landlord shall restore the remaining Premises at its cost. Landlord shall not be
required  to  repair  or  restore  any  damage  to  Tenant's   property  or  any
Alterations.  Thereafter,  the  rent  for the  remainder  of the  Term  shall be
proportionately  reduced,  based on the degree of interference with Tenant's use
of the  Premises.  If the temporary use or occupancy of any part of the Premises
is Taken,  this Lease  shall be  unaffected  by such  taking  and  Tenant  shall
continue to pay all rent payable hereunder;  Tenant shall be entitled to receive
that  portion  of any  award  which  represents  compensation  for the use of or
occupancy  of the  Premises,  and  Landlord  shall be entitled  to receive  that
portion which represents the cost of restoration of the Premises.

                   ARTICLE 9 RIGHTS OF PARTIES HOLDING PRIOR INTERESTS

9.1      Subordination.

         This Lease  shall be subject and  subordinate  to any  mortgage  now or
hereafter  placed on the Lot or  Building,  or both,  or any portion or portions
thereof,  and to each advance  made or hereafter to be made under any  mortgage,
and to all renewals, modifications, increases, consolidations,  replacements and
extensions  thereof and all  substitutions  therefor.  This Section 9.1 shall be
self-operative and no further instrument of subordination shall be required.  In
conformation of such  subordination,  Tenant shall execute and deliver  promptly
any  certificate  that Landlord or any mortgagee may request.  In the event that
any mortgagee or its respective successor in title shall succeed to the interest
of Landlord,  then,  at the option of such  mortgagee or  successor,  this Lease
shall  nevertheless  continue in full force and effect and Tenant shall and does
hereby  agree to attorn to such  mortgagee or  successor  and to recognize  such
mortgagee or successor as its Landlord. Any mortgagee shall have the election to
subordinate its mortgage to this Lease,  exercisable by sending a notice of such
election to Tenant, which notice may be recorded at the option of the mortgagee.
Notwithstanding  the  foregoing,   Landlord  shall  obtain  non-disturbance  and
attornment agreements for Tenant from any current or future mortgagees.

9.2      Modification, Termination, and Cancellation.

         No  assignment  of the Lease  and no  agreement  to make or accept  any
surrender,  termination or cancellation of this Lease and no agreement to modify
so as to reduce the rent,  change the Term, or otherwise  materially  change the
rights of Landlord  under this Lease,  to relieve  Tenant of any  obligations or
liability  under this Lease,  shall be valid unless  consented to by  Landlord's
mortgagees  of record,  if any. No fixed  rent,  additional  rent,  or any other
charge  shall be paid more than ten (10) days prior to the due date  thereof and
payments  made in violation of this  provision  shall (except to the extent that
such payments are actually  received by a mortgagee) be a nullity as against any
mortgagee  and Tenant  shall be liable for the amount of such  payments  to such
mortgagee.

9.3      Rights of Mortgagee.

         No act or failure to act on the part of Landlord  which  would  entitle
Tenant, under the terms of this Lease or as a matter of law, to be released from
Tenant's  obligations  hereunder  or to  terminate  this Lease shall result in a
release of such  obligations  or  termination  of this Lease unless Tenant first
gives written notice of and a specific  description of Landlord's act or failure
to act to Landlord's  mortgagees of record,  if any, and such mortgagee fails to
cure such default within thirty (30) days after receipt of such notice. However,
if such cure reasonably requires more than thirty days to effect, such mortgagee
shall have such additional time as is reasonably necessary in the circumstances,
including time to take possession of the Property. This Section shall not impose
any obligation on any such mortgagee.

                                ARTICLE 10 MISCELLANEOUS

10.1     Financial Statements; Authority.

         (a)  Tenant  represents  and  warrants  that any  financial  statements
provided by it to Landlord were true,  correct and complete when  provided,  and
that no material  adverse  change has occurred since that date that would render
them  inaccurate  or  misleading.  During the term,  Tenant agrees to provide to
Landlord  updated  financial  statements,   in  form  reasonably  acceptable  to
Landlord,  upon request (but not more frequently than once per quarter.)  Tenant
agrees that in the event Tenant's corporate structure is altered through merger,
acquisition  or the  like,  such that  Tenant  becomes  a  parent,  division  or
subsidiary  of  another  corporate  entity,  any  and all  financial  statements
delivered by Tenant pursuant to this Section will contain financial  information
pertaining only to Tenant's  operations and not to any such parent,  division or
subsidiary.

         (b) Tenant  represents  and warrants that those persons  executing this
Lease on Tenant's  behalf are duly  authorized to execute and deliver this Lease
on its behalf, and that this Lease is binding upon Tenant in accordance with its
terms.  If the  Tenant is a  corporation,  each of the  persons  executing  this
instrument on behalf of the Tenant,  hereby covenant and warrant that the Tenant
is a duly existing and valid  corporation and that the Tenant is qualified to do
business in Massachusetts.  Further, if the Tenant is a corporation,  the Tenant
shall deliver to the Landlord, at the time of execution of this Lease, a Clerk's
or Secretary's  Certificate  in the form attached  hereto as Exhibit D (or other
suitable  form  satisfactory  to  counsel  for  the  Landlord),  as to  the  due
authorization  of the  execution  of this Lease and  incumbency  of the  signing
officer.

10.2     Notices.

         Any  notice  required  or  permitted  hereunder  shall  be in  writing.
Communications shall be addressed to Landlord at Landlord's Address, with a copy
to Cabot,  Cabot & Forbes,  99 Summer Street,  Boston, MA 02110,  Attn:  General
Counsel; and to Tenant at Tenant's Address. Any communication so addressed shall
be deemed duly given (i) when  delivered  by hand,  (ii) when sent by  facsimile
transmission,  with a confirmation  copy by regular mail,  (iii) or when sent by
Federal  Express (or other  guaranteed  one day delivery  service) or (iv) three
days after being sent by registered or certified mail, return receipt requested.
Either party may change its address by giving notice to the other.

10.3     No Waiver or Oral Modification.

         No provision of this Lease shall be deemed waived by Landlord or Tenant
except by a signed written waiver. No consent to any act or waiver of any breach
or default,  express or implied, by Landlord or Tenant,  shall be construed as a
consent to any other act or waiver of any other  breach or  default.  Landlord's
failure to enforce any covenant or condition of this Lease shall not be deemed a
waiver  thereof,  and its  failure to enforce  any of the Rules and  Regulations
against  Tenant or any other tenant in the Building shall not be deemed a waiver
thereof. The receipt by Landlord of any rent with knowledge of the breach of any
covenant of this Lease shall not be deemed a waiver of such  breach.  This Lease
may not be changed or amended orally, but only by written instrument.

10.4     Acceptance of Partial Payments of Rent; Delivery of Keys.

         No acceptance by Landlord of a lesser sum than the Annual Base Rent and
additional rent then due shall constitute a waiver of any claim to the remaining
balance nor be deemed to be other than on account of the earliest installment of
such rent due, nor shall any endorsement or statement on any check or any letter
accompanying any check or payment as rent be deemed an accord and  satisfaction,
and Landlord may accept such check or payment  without  prejudice to  Landlord's
right to recover the balance of such  installment  or pursue any other remedy in
this Lease  provided.  The  delivery  of keys to any  employee of Landlord or to
Landlord's  agent or any employee  thereof shall not operate as a termination of
this Lease or surrender of the Premises.

10.5     Cumulative Remedies.

         Landlord's  remedies  under this Lease are cumulative and not exclusive
of any other  remedies  to which  Landlord  may be  entitled in case of Tenant's
breach or  threatened  breach of this Lease.  Landlord  shall be entitled to the
remedies of injunction and specific performance with respect to any such breach.

10.6     Partial Invalidity.

         If any  provision  of this  Lease,  or the  application  thereof in any
circumstances, shall to any extent be invalid or unenforceable, the remainder of
this Lease shall not be affected  thereby,  and each  provision  hereof shall be
valid and enforceable to the fullest extent permitted by law.

10.7     Self-Help.

         If Tenant fails to perform any obligation hereunder, Landlord may enter
the Premises and perform it on Tenant's behalf.  In so doing,  Landlord may make
any payment of money or perform any other act. All sums so paid by Landlord, and
all incidental  costs and expenses,  shall be considered  additional  rent under
this Lease and shall be payable to Landlord immediately on demand, together with
interest  at the rate of the lesser of three  percentage  points  above the then
prevailing  prime  rate or  reference  rate  ("Prime  Rate") as set by The Chase
Manhattan  Bank  (USA),  N.A.  in its main  office in New York,  New York or the
maximum interest rate permitted by law.

         If Landlord fails to perform any obligation hereunder, and such failure
continues for more than ten (10) days after written  notice to Landlord,  Tenant
may send a second notice to Landlord  specifying  the nature of such failure and
the action it proposes for Landlord to take to remedy such failure.  If Landlord
has not commenced  action to remedy such failure within ten (10) days after such
second  notice,  or  thereafter  fails to  diligently  proceed to complete  such
action,  Tenant may take  reasonable  action to remedy  Landlord's  failure  and
Landlord will reimburse  Tenant for the reasonable costs of such action expended
by Tenant,  promptly upon receipt of  appropriate  evidence of completion of the
work and payment by Tenant.  In no event will Tenant be  permitted  to offset or
deduct any amount  owing to Tenant  under this  Section 10.7 against rent or any
other obligation of Tenant hereunder.

10.8     Tenant's Estoppel Certificate

         Within twenty (20) days after written request by Landlord, Tenant shall
execute,  acknowledge and deliver to Landlord a written statement certifying (a)
that this Lease is unmodified and in full force and effect,  or is in full force
and effect as modified  and stating  the  modifications;  (b) the amount of Base
Rent and the date to which  Base  Rent and  additional  rent  have  been paid in
advance;  (c) the amount of any security  deposited with Landlord;  and (d) that
Landlord  is not in  default  hereunder  or, if  Landlord  is  claimed  to be in
default,  stating the nature of any claimed default,  and (e) such other matters
as may be  reasonably  requested by Landlord.  Any such  statement may be relied
upon by a purchaser, assignee or lender. If Tenant fails to execute, acknowledge
and deliver such statement within such twenty (20) day period, Landlord may send
Tenant a second  request for such  statement,  which  request  will provide that
failure to provide the  statement  will  constitute a default  under this Lease.
Tenant's  failure to execute,  acknowledge and deliver such statement within ten
(10) days  after such  second  notice  shall be a default  under this Lease (for
which no  further  grace or cure  period  shall be  applicable,  notwithstanding
Section 7.1 hereof) and shall also be conclusive upon Tenant that (1) this Lease
is in full force and effect and has not been modified  except as  represented by
Landlord; (2) there are no uncured defaults in Landlord's performance and Tenant
has no right of offset, counterclaim or deduction against rent; and (3) not more
than one month's Base Rent has been paid in advance.

10.9     Waiver of Subrogation.

         Landlord  and Tenant each hereby  waive all rights of recovery  against
the other and against the officers,  employees,  agents, and  representatives of
the other,  on account of loss by or damage to the waiving party or its property
or the  property of others  under its  control,  to the extent that such loss or
damage is insured  against  under any  insurance  policy that either may have in
force at the time of the loss or damage or would have been insured against under
an insurance  policy  required to be  maintained  under the  provisions  of this
Lease.  Each  party  shall  notify its  insurers  that the  foregoing  waiver is
contained in this Lease.

10.10    All Agreements; No Representations.

         This Lease  contains all of the  agreements of the parties with respect
to the subject matter hereof and supersedes all prior dealings between them with
respect to such subject matter.  Each party acknowledges that the other has made
no  representations  or warranties of any kind except as may be specifically set
forth in this Lease.

10.11    Brokerage.

         Tenant  represents  and  warrants  that it has not dealt  with any real
estate broker or agent in connection with this Lease or its  negotiation  except
Brokers.  Landlord  agrees that it shall be  responsible  for any  compensation,
commission  or other  amount due Brokers in  connection  with this  transaction.
Tenant shall indemnify Landlord and hold it harmless from any cost,  expense, or
liability  (including  costs of suit and  reasonable  attorneys'  fees)  for any
compensation,  commission  or fees  claimed by any other real  estate  broker or
agent in connection  with this Lease or its  negotiation by reason of any act of
Tenant.

10.12    Successors and Assigns

         This  Lease  shall be  binding  upon and  inure to the  benefit  of the
parties hereto and their respective successors and assigns, except that only the
original  Landlord named herein shall be liable for obligations  accruing before
the beginning of the Term, and thereafter the original Landlord named herein and
each  successive  owner of the  Premises  shall be liable  only for  obligations
accruing during the period of their respective ownership.

10.13    Submission Not an Option

         The  submission  of  this  Lease  or a  summary  of  some or all of its
provisions  for  examination  does not constitute a reservation of or option for
the  Premises  or an  offer  to  lease,  and it is not  effective  as a lease or
otherwise until the execution by and delivery to both Landlord and Tenant.

Applicable Law

         This Lease shall be construed and enforced in accordance  with the laws
of the Commonwealth of Massachusetts, without regard to its choice of law rules.

10.15    Waiver of Jury Trial.

         Landlord  and  Tenant  hereby  waive  trial  by  jury  in  any  action,
proceeding or  counterclaim  brought by either of the parties hereto against the
other,  on or in respect to any matter  whatsoever  arising out of or in any way
connected with this Lease,  the  relationship of Landlord and Tenant  hereunder,
Tenant's use or occupancy of the Premises, and/or claim of injury or damages.

10.16    Attorneys' Fees.

         If either  Landlord  or Tenant  institutes  any action to  enforce  the
provisions  of this  Lease or to seek a  declaration  of rights  hereunder,  the
prevailing party shall be entitled to recover its reasonable attorneys' fees and
court costs as part of any award.

10.17    Surrender.

         The voluntary or other  surrender of this Lease by Tenant,  or a mutual
cancellation  thereof,  shall not work a merger,  and  shall,  at the  option of
Landlord,   operate  as  an  assignment  to  it  of  any  or  all  subleases  or
subtenancies.

10.18    Holdover

         If Tenant holds over in occupancy of the Premises  after the expiration
of the Term,  Tenant shall become a tenant at sufferance  only, at a rental rate
equal to one and one-half  times the Base Rent in effect at the end of the Term,
plus the amount of Tenant's  Share of  Expenses  then in effect,  and  otherwise
subject to the terms and conditions herein specified, so far as applicable,  and
shall be liable for all damages sustained by Landlord on account of such holding
over.  This  Section  shall not  operate  as a waiver  of any  right of  reentry
provided in this Lease,  and Landlord's  acceptance of rent after  expiration of
the Term or earlier  termination of this Lease shall not constitute consent to a
holdover or result in a renewal.  If Tenant fails to surrender the Premises upon
the expiration of the Term or earlier  termination despite demand by Landlord to
do so,  Tenant  shall  indemnify  and hold  Landlord  harmless  from all loss or
liability,  including,  without  limitation,  any claim  made by any  succeeding
tenant resulting from such failure.

10.19    Late Payment.

         Tenant  acknowledges that the late payment by Tenant to Landlord of any
sums due under this Lease will cause Landlord to incur costs not contemplated by
this  Lease,  the exact  amount of such  costs  being  extremely  difficult  and
impractical  to fix.  Therefore,  if any Base Rent or other sum hereunder is not
paid within thirty (30) days of the due date,  Tenant shall pay to Landlord,  as
additional  rent,  the sum of three percent (3%) of the overdue amount as a late
charge.  The overdue amount,  if not received within ten days thereafter,  shall
also bear  interest,  as  additional  rent, at the lesser of the Prime Rate plus
three  percent (3%) or the maximum  interest rate  permitted by law,  calculated
from the date the late charge becomes due until the date of payment to Landlord.
Landlord's  acceptance  of any late charge or interest  shall not  constitute  a
waiver of Tenant's default with respect to the overdue amount.

10.20    Time of Essence

         Time is of the  essence of this  Lease.  In the event that the time for
performance of any obligation hereunder,  except the payment of Base Rent, falls
on a day other than a business day, the time for  performance  shall be extended
to the next business day. The term "business day" shall mean any day that is not
a Saturday,  Sunday or a state or federal holiday on which office  businesses in
Boston, Massachusetts are generally closed.

Force Majeure.

         If Landlord or Tenant is prevented  from or delayed in  performing  any
act required of it hereunder, and such prevention or delay is caused by strikes,
labor disputes,  inability to obtain labor, materials,  or equipment,  inclement
weather,  acts of God,  governmental  restrictions,  regulations,  or  controls,
judicial orders, enemy or hostile government actions,  civil commotion,  fire or
other  casualty,   or  other  causes  beyond  such  party's  reasonable  control
(collectively,  "Force  Majeure"),  the performance of such act shall be excused
for a period equal to the period of  prevention  or delay.  A party's  financial
inability to perform its obligations shall in no event constitute Force Majeure.
Nothing in this section  shall excuse or delay  Tenant's  obligation  to pay any
rent or other charges due under this Lease.

10.22    Limitation On Liability

         In  consideration  of the benefits  accruing  hereunder,  Tenant hereby
covenants and agrees that, in the event of any actual or alleged failure, breach
or default hereunder by Landlord:

         (a) The  obligations  of  Landlord  under this Lease do not  constitute
personal obligations of the trustees,  individual partners,  directors, officers
or shareholders of Landlord,  Landlord's  beneficiary or any constituent partner
of  Landlord's  beneficiary,  and Tenant  shall not seek  recourse  against  the
trustees, partners,  directors, officers or shareholders of Landlord, Landlord's
beneficiary or any constituent partner of Landlord's beneficiary or any of their
personal assets for satisfaction of any liability with respect to this Lease;

         (b) Tenant's sole and exclusive  remedy shall be against the Landlord's
interest in the Property;

         (c)       Neither  Landlord's   beneficiary  nor  any  constituent   
partner  of Landlord's beneficiary
shall be sued,  named as a party in any suit or action,  or served with  process
therein  (except if necessary to secure  jurisdiction),  and neither  Landlord's
beneficiary  nor any  constituent  partner of  Landlord's  beneficiary  shall be
required to respond to any service of process;

         (d) No judgment will be taken against  Landlord's  beneficiary  nor any
constituent partner of Landlord's beneficiary,  and no writ of execution will be
levied against the assets of Landlord's beneficiary or any such partner;

         (e) These covenants and agreements are enforceable both by Landlord and
also  by  Landlord's   beneficiary,   any  constituent   partner  of  Landlord's
beneficiary and shall bind Tenant and its successors and assigns.

10.23    Recording.

         The Tenant  agrees not to record this  Lease.  At the request of either
party,  Landlord and Tenant agree that at the request of either party, they will
execute a Notice of Lease,  in  recordable  form  reasonably  acceptable to both
parties.

10.24    Security Deposit

         Tenant agrees to deliver into escrow with Old Republic Title  Insurance
Company ("Escrow  Agent"),  within two (2) business days after the execution and
delivery of this Lease by Landlord and Tenant, a certified check (payable to Old
Republic Title Insurance  Company) or an irrevocable letter of credit (in a form
approved by Landlord) in the amount set forth in Section 1.1.  Escrow Agent will
hold the funds or such letter of credit in escrow,  to be  delivered to Landlord
upon  acquisition of the Property by Landlord.  If Landlord does not acquire the
Property by the applicable  Target Date and Landlord or Tenant  terminates  this
Lease in accordance  with the  provisions of Section 2.2 (b) hereof,  the Escrow
Agent will return such funds or such letter of credit to Tenant,  promptly after
the effective  date of such  termination.  Any interest  earned on funds held in
escrow  will be paid to Tenant.  The terms of such  escrow will be as set out in
the supplemental escrow agreement attached hereto as Exhibit H. In addition,  if
Tenant  elects to exercise its rights with respect to the First Floor  Expansion
Space,  Tenant  shall  deliver to Landlord  either (i) a  certified  check in an
amount  equal to six (6)  months'  Base Rent  attributable  to the  First  Floor
Expansion Space, or (ii) if the initial security deposit delivered  hereunder is
in the form of a letter  of  credit,  a  replacement  letter of credit in a form
approved by Landlord in the combined amount of the security deposit set forth in
Section  1.1 and six (6)  months'  Base Rent  attributable  to the  First  Floor
Expansion Space.  Such certified check or replacement  letter of credit shall be
delivered to Landlord  along with  Tenant's  notice of its election to lease the
First  Floor  Expansion  Space.  The  initial  security  deposit   delivered  in
connection  with  the  execution  of this  Lease,  and the  additional  security
delivered in connection with the Tenant's exercise of its rights with respect to
the First  Floor  Expansion  Space are  collectively  referred  to herein as the
"Security Deposit".

         Landlord shall hold the Security Deposit, throughout the Lease Term, as
security for the  performance by Tenant of all obligations on the part of Tenant
to be kept and  performed.  Landlord  shall  have the  right  from  time to time
without  prejudice to any other remedy Landlord may have on account thereof,  to
apply the Security Deposit,  or any part thereof,  to Landlord's damages arising
from any  default on the part of Tenant.  Upon such  application,  the amount so
applied  shall be paid by  Tenant  to  Landlord  (or in the case of a letter  of
credit,  the letter of credit shall be  restored)  upon demand in order that the
Security  Deposit  may at all times be equal to the  amount set forth in Section
1.1.

         Provided  Tenant  is not  then  in  default  of any of its  obligations
hereunder,  Landlord  shall return the Security  Deposit,  or so much thereof as
shall not have  theretofore  been applied in  accordance  with the terms of this
Section  10.24,  to Tenant within thirty (30) days  following the  expiration or
earlier  termination  of the  Lease  Term and  surrender  of  possession  of the
Premises by Tenant to Landlord.  In the event the Security Deposit  delivered by
Tenant is in the form of cash paid by a certified check,  Landlord shall, unless
otherwise  required by law and except as provided in the next sentence,  have no
obligation  to pay interest on the Security  Deposit and shall have the right to
commingle  the same with  Landlord's  other  funds.  Landlord  agrees that if it
elects to hold the Security Deposit in a separate account,  Landlord will pay to
Tenant (not less  frequently  than annually) any interest earned on the Security
Deposit; if Landlord holds the Security Deposit with its general operating funds
and earns  interest  on such funds,  it will pay to Tenant (not less  frequently
than annually)  interest on the Security Deposit at the interest rate applicable
to such funds. If Landlord  conveys  Landlord's  interest under this Lease,  the
Security Deposit, or any part thereof not previously applied, may be turned over
by Landlord to Landlord's grantee, and, if so turned over, Tenant agrees to look
solely to such  grantee  for  proper  application  of the  Security  Deposit  in
accordance  with the terms of this  Section  10.24,  and the  return  thereof in
accordance  herewith.  Tenant  agrees that  Tenant will not assign,  encumber or
pledge,  attempt to assign,  encumber or pledge the moneys  deposited  herein as
security,  and that neither Landlord,  nor its successors and assigns,  shall be
bound by any such  assignment,  encumbrance  or  pledge,  attempted  assignment,
attempted pledge, or attempted encumbrance.

         If Tenant  elects to  deliver  an  irrevocable  letter of credit as its
Security Deposit, such letter of credit shall be in a form reasonably acceptable
to Landlord  and shall be drawn on a bank  approved  in writing by Landlord  and
located in eastern  Massachusetts.  The letter of credit  shall be  addressed to
Landlord, shall permit partial draws, and shall be payable upon simple demand by
Landlord  accompanied by a sworn statement of an authorized  officer or agent of
Landlord stating that the drawing represents amounts due to Landlord from Tenant
under this Lease following an event of default.

         Such letter of credit will be issued for a term of not less than twelve
(12) months. Tenant shall furnish to Landlord a replacement letter of credit not
later than thirty (30) days prior to the expiration of the  then-current  letter
of credit and the final letter of credit shall not expire until thirty (30) days
after  the end of the Term of the  Lease.  Failure  by  Tenant  to  deliver  any
replacement letter of credit in the time provided shall be an immediate event of
default under this Lease and shall entitle Landlord to immediately draw upon the
letter of credit  for the full  amount of the  Security  Deposit.  In such case,
Landlord  will hold the net proceeds of any such drawing on the letter of credit
as a security deposit under this Section 10.24 (after deducting any amounts then
owed to Landlord  hereunder and costs  incurred by Landlord in  connection  with
such drawing).


<PAGE>


         EXECUTED as a sealed  instrument in two or more counterparts on the day
and year first above written.
                                   "Landlord"
                                                        CC&F Second Avenue Trust


                                                         By:/S/ JOHN A. PIROVANO
                                                              John A.  Pirovano,
                                   as Trustee
                                     and not
individually


                                    "Tenant"
                              Raptor Systems, Inc.

                                          By:/S/ ROBERT FINCKE
                                          Name:       Robert Fincke
                                          Its:         VP, Treasurer



<PAGE>


                                        EXHIBIT A
                                        PREMISES
         Attach a copy of the Floor Plan showing the location of the Premises.


<PAGE>


                                        EXHIBIT B
                                  PROPERTY DESCRIPTION


<PAGE>


                                        EXHIBIT C
                               NOTICE OF COMMENCEMENT DATE


To:  Raptor Systems, Inc.                        Date:  __________
Re:  Lease dated ____________,  19__ between [Affiliate of CC&F],  Landlord, and
     Raptor Systems,  Inc.,  Tenant,  concerning the Premises (as defined in the
     subject Lease) located at 266 Second Avenue, Waltham, Massachusetts.
Gentlemen:
         In accordance  with the subject Lease, we wish to advise and/or confirm
as follows:
         1. That the [Phase I Premises, Phase II Premises, Phase III Premises or
First Floor  Expansion  Space],  as such  premises are defined in the Lease (the
"Premises")  have been  accepted  herewith by the Tenant as being  substantially
complete in accordance  with the subject Lease,  and that there is no deficiency
in  construction.  Without  limiting the foregoing,  Tenant's  execution of this
Notice shall constitute a specific  acknowledgment and acceptance of the various
start-up  inconveniences that may be associated with the use of the Common Areas
such as certain construction obstacles including scaffolding,  delays in the use
of freight elevator  service,  certain  elevators not being available to Tenant,
the passage of work crews using elevators,  uneven air-conditioning service, and
other typical  conditions  incident to recently  constructed  office  buildings.
Further,  Tenant's  execution of this Notice shall constitute an acknowledgment,
in light of the  practical  impossibility  of ensuring that every floor slab has
been installed with  absolutely no  deflection,  that all wood floor  coverings,
wood paneling, and similar interior Leasehold Improvements have been and/or will
be designed  to  accommodate  the actual  floor slab  deflection  unique to each
particular area of the Premises to be so improved.
         2.  That  the  Tenant  has  possession  of  the  subject  Premises  and
acknowledges  that under the provisions of the subject Lease,  the  Commencement
Date  with  respect  to the  [Phase I  Premises,  Phase II  Premises,  Phase III
Premises or First Floor Expansion Space] is _______________________.
         3. That in accordance with the subject Lease, the total actual Rentable
Square Feet in the  Premises  (including  all  previous  space),  as measured by
Landlord is ________ rentable square feet, Tenant's Parking Spaces are ________,
and Tenant's Percentage is ____________.
         4. That in accordance  with the subject  Lease,  Base Rent commenced to
accrue on _______________________, in the amount of $_______________.
         5. If the  Commencement  Date with  respect to the  [Phase I  Premises,
Phase II Premises, Phase III Premises or the First Floor Expansion Space] of the
subject  Lease is other than the first day of the month,  the first billing will
contain a pro rata  adjustment.  Each billing  thereafter  shall be for the full
amount of the monthly installment as provided for in said Lease.
         6.  Rent is due and  payable  in  advance  on the first day of each and
every  month  during the term of said  Lease.  Your rent  checks  should be made
payable  to CC&F  Second  Avenue  Trust,  c/o Cabot,  Cabot & Forbes,  99 Summer
Street, Boston, MA 02110.


AGREED AND ACCEPTED


"Tenant"
Raptor Systems, Inc.
By:________________________________
         Its __________________________


"Landlord"
CC&F Second Avenue Trust
By:________________________________
   As Trustee but not individually


<PAGE>


                                        EXHIBIT D
                                   CLERK'S CERTIFICATE


         I, [name of clerk], Clerk [Secretary] of [name of corporation],  hereby
certify  that the  following  is a true  copy of a  resolution  of the  board of
directors  of this  corporation  adopted  at a meeting  duly  called and held on
[date], a quorum being present and acting  throughout,  and that such resolution
has not been revoked, amended or modified and is in full force and effect:

         VOTED:  That  the  President  [or  other  officer]  be  and  is  hereby
         authorized,   singly,   to  execute  and  deliver  on  behalf  of  this
         corporation a lease between _______________________,  as landlord , and
         this corporation,  as tenant,  for  approximately  ____ rentable square
         feet  of  office   space  in  the   landlord's   building   located  at
         ______________________,  Massachusetts,  upon such terms and conditions
         as the signing  officer shall determine to be necessary or appropriate.
         The   signature  of  the  President  [or  refer  to  other  officer  as
         applicable]  thereon shall  conclusively  evidence its approval by this
         vote.   This  is  to  certify  further  that  as  of  the  date  hereof
         ________________________
is the
President [or refer to other officer as applicable] of this corporation.

- -----------------------------
                                                               Clerk [Secretary]
Dated: _____________, 19__
[SEAL]


<PAGE>


                                        EXHIBIT E
                      [ATTACH PLAN SHOWING ROUTE 128 EXPOSURE AREA]


<PAGE>



                                            9
                                        EXHIBIT F
                               DESCRIPTION OF THE PROJECT


<PAGE>


                                        EXHIBIT G
                      TENANT'S SPECIAL POWER AND HVAC REQUIREMENTS


<PAGE>


                                        EXHIBIT H
                              SUPPLEMENTAL ESCROW AGREEMENT


         We, the  undersigned,  do hereby  jointly and severally  agree that the
Escrow Agent,  Old Republic  National Title Insurance  Company  ("ORNTIC") shall
incur no liability  whatsoever  in  connection  with its good faith  performance
under this Escrow  Agreement,  and do hereby  jointly and severally  release and
waive  any  claims  we may  have  against  ORNTIC,  which  may  result  from its
performance in good faith of its wire transfer of funds.  ORNTIC shall be liable
only  for  loss or  damage  caused  directly  by its  acts of  negligence  while
performing as Escrow Agent under this Escrow Agreement.
         The Escrow  Agent shall be entitled  to rely upon  authenticity  of any
signature  and the  genuineness  and validity of any writing  received by Escrow
Agent  relating to this Escrow  Agreement.  Escrow  Agent may rely upon any oral
identification  of a party notifying Escrow Agent or ally as to matters relating
to this  Agreement if such oral  notification  is permitted  thereunder.  Escrow
Agent is not responsible for the nature, content,  validity or enforceability of
any of the escrow documents except for those documents prepared by ORNTIC.
         In the event of any  disagreement  between the parties hereto resulting
in  conflicting  instructions  to, or adverse  claims or demands upon the Escrow
Agent with respect to the release of the escrow  funds or the escrow  documents,
the Escrow Agent may refuse to comply with any such instruction, claim or demand
so long as such disagreement  shall continue and in so refusing the Escrow Agent
shall not release the escrow  funds or the escrow  documents.  The Escrow  Agent
shall not be, or become  liable in any way for its  failure or refusal to comply
with any such conflicting instructions or adverse claims or demands and it shall
be  entitled  to  continue  to  refrain  from  acting  until  such   conflicting
instructions  or adverse  claims or  demands  (a) shall  have been  adjusted  by
agreement  and it shall have been  notified  in writing  thereof by the  parties
hereto;  or (b)  shall  have  been  determined  in a court  of  competent  final
jurisdiction.
         The Escrow Agent may, at its sole  discretion,  resign by giving thirty
(30) days  written  notice  thereof to the parties  hereto.  The  parties  shall
furnish to the Escrow Agent written  instructions  for the release of the escrow
funds and escrow  documents.  If the escrow agent shall not have  received  such
written  instructions within thirty (30) days, the Escrow Agent may petition any
court of competent  jurisdiction for the appointment of a successor Escrow Agent
and upon such appointment  deliver the escrow funds and escrow documents to such
successor. Costs and fees incurred by the Escrow Agent may, at the option of the
Escrow Agent, be deducted from any funds held pursuant hereto.
         The  parties  hereto do  hereby  certify  that they are aware  that the
Federal Deposit Insurance Corporation (FDIC) coverages applies only to a maximum
amount of $100,000.00 for each individual depositor and that they are aware that
ORNTIC assumes no  responsibility  for, nor will they hold ORNTIC liable for any
loss  occurring  which  arises  from the fact that the amount held by the Escrow
Agent in any account may cause the aggregate amount of any individual depositors
accounts  to exceed  $100,000.00  and that the excess  amount not insured by the
Federal Deposit  Insurance  Corporation.  Federal I.D. or Social Security Number
_______________________________      By     _____________________________     By
_______________________________     Address    ________________________    Title
____________________________       Telephone      ______________________      By
_______________________________
                                                              Title
- ----------------------------
OLD REPUBLIC NATIONAL TITLE INSURANCE COMPANY/ESCROW AGENT


By _____________________________
Address ________________________
Telephone ______________________


<PAGE>


   
                               
(1) Unless otherwise provided in employment agreement.

For   Terminations  without  cause and  without a change of  control,  severance
      includes:  Full base salary (excluding  unearned bonuses,  commissions and
      overides) and
     participation in related benefits (medical, dental and vision coverage with
     payment of employee  contribution,  auto  allowance  and  reimbursement  of
     authorized business expenses) for the period of severance.
      Employment is deemed to continue for purposes of permitting  the executive
     to exercise stock options through the severance period (or until the stated
     option expiration date, if earlier).

For   terminations  without  cause that occur  within 9 months after a change of
      control,  severance includes:  Full base salary and full targeted bonus or
      override/commission; and related
     benefits  (medical,  dental and vision coverage without payment of employee
     contribution,  auto  allowance and  reimbursement  of  authorized  business
     expenses) for the period of severance.
      Full  accelerated  vesting of all unvested  options upon  termination  and
     employment is deemed to continue for purposes of  permitting  the executive
     to exercise stock options through the severance period (or until the stated
     option expiration date, if earlier).
      A termination will be deemed to occur should an acquiring  company without
     the consent of the  individual  require  relocation  of an  executive to an
     office more than 50 miles from then-current office location,  significantly
     reduce the functional responsibility of the executive from that immediately
     before  change  of  control,   or  significantly   reduce  the  executive's
     compensation package.
      AXENT agrees to indemnify  executive for  liabilities  resulting  from the
     performance  of  his  duties  and   responsibilities   for  AXENT  and  its
     subsidiaries.

Executives  must agree to non-hiring  and  non-compete  covenants  with AXENT to
receive severance.

"Change of control" is as defined in AXENT's 1998 stock option plan in effect in
August 1998.

Compensation Committee Approval:


/S/ JOHN F. BURTON                          /S/ GABRIEL A. BATTISTA
    




<PAGE>


                                                                  EXHIBIT 10.35A
                                FIRST AMENDMENT TO LEASE


         This FIRST AMENDMENT TO LEASE (this "Amendment"),  dated as of December
15, 1997 is hereby entered into between John A. Pirovano, not individually,  but
as Trustee of CC&F Second Avenue Trust, a  Massachusetts  nominee trust,  having
its principal  office at c/o Cabot,  Cabot & Forbes,  99 Summer Street,  Boston,
Massachusetts  02110  ("Landlord"),   and  Raptor  Systems,   Inc.,  a  Delaware
corporation,   having  its  principal  office  at  69  Hickory  Drive,  Waltham,
Massachusetts ("Tenant").

         Reference is made to the following facts:

         A. Landlord and Tenant entered into a lease (the "Lease"), dated May 6,
1997,  for  approximately  49,834  rentable  square  feet of office  space  (the
"Premises")   in  the   building   located  at  266  Second   Avenue,   Waltham,
Massachusetts.

         B. The Lease  requires  Landlord to deliver  the  Premises to Tenant in
three  phases:  the Phase I Premises,  the Phase II Premises,  and the Phase III
Premises.

         C. Under Section 1.1 of the Lease,  the Phase I Premises were estimated
to  contain   approximately   30,000   rentable   square  feet.   After  further
remeasurement,  the Phase I Premises  are  estimated  to  contain  approximately
31,500 rentable square feet.

         D. The Lease  requires  Landlord  to deliver  the Phase I  Premises  to
Tenant in two segments. The scheduled delivery date for the first segment of the
Phase I Premises is December  15,  1997.  The  scheduled  delivery  date for the
second segment of the Phase I Premises is January 15, 1998.

         E.  Tenant  has  requested,  and  Landlord  has  agreed,  that  (i)  an
additional 3,000 rentable square feet of space be incorporated  into the Phase I
Premises, as remeasured,  and (ii) the delivery of the first and second segments
of the  reconfigured  Phase I Premises be delayed  until  January 15, 1998,  and
March 1, 1998,  respectively.  In connection with Tenant's holdover occupancy of
its current  premises,  Tenant has further  requested,  and Landlord has agreed,
that  Landlord  shall  pay a portion  of such  holdover  rent in  return  for an
increase in the Rent payable under the Lease.

         NOW,  THEREFORE,  in  consideration  of the  mutual  agreements  herein
contained,  and for other  good and  valuable  consideration,  the  receipt  and
sufficiency of which are hereby  acknowledged,  Landlord and Tenant hereby agree
as follows:

         1. Tenant's  Holdover Rent. On or before January 15, 1998, Tenant shall
provide  Landlord with written notice  ("Tenant's  Holdover Rent Notice") of the
amount  of the  holdover  rent  (the  "Holdover  Rent")  due from  Tenant to its
existing  landlord  for the period from  January 15, 1998  through  February 28,
1998.  On or before  March 10, 1998,  Landlord  shall  reimburse  Tenant for the
amount of the Holdover Rent in an amount not to exceed $79,266.00.  In the event
Tenant's  notice  indicates  that the amount of the  Holdover  Rent is less than
$79,266.00,  Landlord  shall apply such  difference  to reduce the amount of the
Tenant's T.I.  Payment (as such term is defined in Section 4.2 of the Lease) due
and payable by Tenant on the Phase I Premises  Commencement  Date in  connection
with the  construction of the Leasehold  Improvements  for the Phase I Premises.
Tenant hereby  acknowledges that any delay by Tenant in the delivery of Tenant's
Holdover  Rent  Notice  will  result  in a  corresponding  delay  in  Landlord's
reimbursement of the Holdover Rent.

         2.       Section 1.1 of the Lease is hereby amended as follows:
                  a.The "Premises" shall be "Initially, the space located on the
                  second floor of the
                  Building,  comprised of the "Phase I Premises"  consisting  of
                  approximately 34,500 square feet as shown on Exhibit A-1. Upon
                  the occurrence of the Commencement  Date for future Phases (as
                  provided in Section 2.2) and, if  applicable,  the First Floor
                  Expansion  Space (as  provided  in Section  2.5),  such future
                  Phases shall be included as part of the Premises. The Phase II
                  Premises  shall  consist  of  approximately   6,000  to  7,000
                  rentable  square feet on the second floor, in a location to be
                  agreed upon by Landlord  and  Tenant.  The Phase III  Premises
                  shall consist of the balance of rentable square footage on the
                  second  floor of the  Building,  consisting  of  approximately
                  8,334  to  9,334  rentable  square  feet.  Where  the  context
                  permits,  the term  "Phase" as used herein  shall  include the
                  Phase I  Premises,  the  Phase  II  Premises,  the  Phase  III
                  Premises and, if applicable, the First Floor Expansion Space."
                  b. The definition of "Rentable Square Feet in the Premises" is
                  hereby  amended by deleting the  reference  to  "approximately
                  30,000 rentable  square feet" in the first paragraph  thereof,
                  and replacing it with  "approximately  34,500  rentable square
                  feet." c. The  definition of "Tenant's  Percentage"  is hereby
                  amended by deleting the second sentence of the first paragraph
                  thereof and  replacing it with the  following:  "The  rentable
                  square feet in the Building is expected to be 95,919, and as a
                  result,  Tenant's  Percentage for the Phase I Premises (34,500
                  rentable  square  feet)  is  expected  to be  35.97%."  d. The
                  "Scheduled  Phase  I  Premises  Commencement  Date"  shall  be
                  January  15,  1998.  e.  The  "Scheduled   Phase  II  Premises
                  Commencement  Date"  shall be "[t]he  earlier  to occur of (i)
                  December 15, 1998, or (ii) the date that is one hundred twenty
                  (120) days after the date  Landlord  receives  written  notice
                  from Tenant that Tenant has elected to accelerate  the date of
                  its  occupancy of the Phase II  Premises."  f. The  "Scheduled
                  Phase III Premises  Commencement Date" shall be "[t]he earlier
                  to occur of (i) June 15,  1999,  or (ii) the date  that is one
                  hundred  twenty  (120) days after the date  Landlord  receives
                  written   notice  form  Tenant  that  Tenant  has  elected  to
                  accelerate  the  date  of  its  occupancy  of  the  Phase  III
                  Premises." g. "Base Rent" shall be calculated as follows:
                           "From and after the Commencement Date for the Phase I
                           Premises,  through and  including the last day of the
                           sixtieth  (60th) full calendar  month of the Term, at
                           the annual rate of $26.45  multiplied by the Rentable
                           Square  Feet  in the  Premises.  (The  Base  Rent  is
                           subject to adjustment prior to delivery of the second
                           segment  of the  Phase I  Premises,  as  provided  in
                           Section 2.2(a) hereof).  From and after the first day
                           of the sixty-first  (61st) full calendar month of the
                           Term,  through  the  remainder  of the  Term,  at the
                           annual  rate of  $28.20  multiplied  by the  Rentable
                           Square Feet in the Premises."

         3. Section  2.2(a) of the Lease is hereby amended by deleting the third
full paragraph thereof and replacing it with the following:

                  "Notwithstanding  the  foregoing,  the delivery of the Phase I
                  Premises will occur in two segments (a  "segment"),  the first
                  of which will contain  approximately  31,500  rentable  square
                  feet and the second of which will  contain  the balance of the
                  Phase I Premises  (i.e.,  approximately  3,000 rentable square
                  feet),  as shown on the attached  Exhibit A-1.  Only the first
                  segment  will  be  taken  into  account  in  determining   the
                  Commencement Date for the Phase I Premises.  However, prior to
                  the Second  Segment Rent Date (defined  below),  the Base Rent
                  and   Additional   Rent   due   hereunder   will  be   reduced
                  proportionately  so that  Tenant is  required to pay Base Rent
                  and  Additional  Rent only on the first segment of the Phase I
                  Premises. The Second Segment Rent Date shall be the earlier of
                  (i) the date on which such segment is Ready for Occupancy, but
                  in no event  earlier  than March 1, 1998,  or (ii) the date on
                  which Tenant begins to conduct business within such segment."

         4. Section  2.2(c) of the Lease is hereby deleted and replaced with the
following:

                  "(c)  Landlord  shall use  reasonable  efforts to deliver  the
                  first segment of the Phase I Premises by the Scheduled Phase I
                  Premises  Commencement  Date,  the second  segment by March 1,
                  1998, the Phase II Premises by the Scheduled Phase II Premises
                  Commencement Date, and the Phase III Premises by the Scheduled
                  Phase  III  Premises  Commencement  Date.  If  any  Phase  (or
                  segment)  is  not  Ready  for  Occupancy  on  the   applicable
                  Scheduled  Commencement  Date for  such  Phase  (or  segment),
                  Landlord  shall  not be  subject  to any  liability  for  such
                  failure, except as expressly set forth below, and such failure
                  shall not affect the validity of this Lease,  but Tenant shall
                  not be liable for any rent until the Commencement Date for the
                  applicable Phase (or segment).  Notwithstanding the foregoing,
                  if the first  segment of the Phase I Premises is not Ready for
                  Occupancy by January 15, 1998, or if the second segment of the
                  Phase I Premises is not Ready for  Occupancy by March 1, 1998,
                  Tenant  shall  receive  one day of free Base Rent for each day
                  delivery of such segment is delayed beyond such date, provided
                  that (i) such  free rent  arrangements  shall not apply to the
                  extent that such delay was caused by any action or inaction of
                  Tenant or any Force Majeure, except that any extension of such
                  January 15 or March 1 date due to Force  Majeure  delays  will
                  not  exceed  sixty (60)  days,  (ii) a failure  of  Landlord's
                  contractor  to complete  construction  on  schedule  shall not
                  constitute   "Force   Majeure"   unless   such   failure   was
                  attributable to an event which would itself  constitute "Force
                  Majeure,  and (iii)  such  free  rent  will only  apply to the
                  segment which was the subject of the delay."

         5.  Section 2.5 of the Lease is hereby  amended by  deleting  the first
paragraph thereof and replacing it with the following:

                  "Tenant shall have the right to lease from Landlord additional
                  space  on the  first  floor  of  the  Building  consisting  of
                  approximately  10,000  rentable  square  feet of  space  (in a
                  single  block of  space) to be  designated  by  Landlord  (the
                  "First Floor Expansion Space"), provided that (i) on or before
                  April 14, 1998,  Tenant shall give Landlord  written notice of
                  its  election  to  lease  the  First  Floor   Expansion  Space
                  ("Tenant's  Expansion Space Notice"),  and (ii) at the time of
                  the  delivery of Tenant's  Expansion  Space  Notice and on the
                  Commencement Date for the First Floor Expansion Space,  Tenant
                  satisfies the Exercise Conditions, Tenant hereby agreeing that
                  if Tenant fails to satisfy the Exercise  Conditions  as of the
                  date of such notice,  or as of the  Commencement  Date for the
                  First  Floor  Expansion  Space,  Tenant's  rights  under  this
                  Section  2.5  shall  expire  and be of no  further  force  and
                  effect.  Within  forty-five  (45) days after the  delivery  of
                  Tenant's  Expansion  Space  Notice,  Tenant  shall  deliver to
                  Landlord Preliminary Plans (as such term is defined in Section
                  4.1  herein) for the First Floor  Expansion  Space.  Upon such
                  delivery, Landlord and Tenant will prepare Final Plans for the
                  First  Floor  Expansion  Space  in  accordance  with  the plan
                  preparation   procedures   described   in  Section   4.1,  and
                  thereafter,  Landlord shall improve the First Floor  Expansion
                  Space using the construction  procedures  described in Section
                  4.1,  and  the  Tenant  Allowance  and  occupancy   procedures
                  described in Sections 4.2 and 4.3. The  Commencement  Date for
                  the First Floor  Expansion Space shall be the earlier to occur
                  of (i) the date on which the First  Floor  Expansion  Space is
                  Ready for  Occupancy,  as such term is defined in Section 2.2,
                  or (ii) the date on which  Tenant  begins to conduct  business
                  operations in any portion of the First Floor Expansion Space."

         6.  Exhibit A to the  Lease is hereby  deleted  and  replaced  with the
attached  Exhibit A-1. All  references in the Lease to Exhibit A shall be deemed
to be references to Exhibit A-1.

         7. Tenant hereby  confirms that all of Tenant's rights to terminate the
Lease  granted to Tenant  under  Section  2.2(b) of the Lease have lapsed or are
otherwise of no further force and effect.

         8. The foregoing provisions are effective as of the date hereof. In all
other  respects,  Landlord  and Tenant  hereby  reaffirm  all of the  covenants,
agreements,  terms,  conditions,  and other  provisions  of the  Lease  which is
incorporated in full herein by reference, and all covenants,  agreements, terms,
conditions,  and provisions thereof shall remain in full force and effect except
as modified hereby.

         9. This Amendment may be executed simultaneously in counterparts,  each
of which shall constitute one and the same instrument.

         IN  WITNESS  WHEREOF,  the  parties  hereto  have  executed  this First
Amendment as a sealed instrument as of the date and year first above written.


                           LANDLORD:        CC&F Second Avenue Trust


                                            By:      /S/ John A. Pirovano
                                            John A. Pirovano, not individually,
                                            but as Trustee

                           TENANT:          Raptor Systems, Inc.

                                                   By:       /S/ Robert Fincke
                                                          Name:  Robert Fincke
                                                          Title:  VP, Treasurer


<PAGE>




                                       EXHIBIT A-1
                                    266 Second Avenue
                                      Second Floor






WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
AXENT TECHNOLOGIES, INC.
                                 FINANCIAL DATA SCHEDULE


The schedule contains summary financial information extracted from the condensed
consolidated  balance sheet and  statement of operations of AXENT  Technologies,
Inc.  as of and  for  the  nine  months  ended  September  30,  1998  and  1997,
respectively,  and is qualified  in its entirety by reference to such  financial
statements.
</LEGEND>
       
<S>                                            <C>               <C>
                                                  September 30,
                                               1998              1997
                                               ----              ----
<PERIOD-TYPE>                                  3-MOS             3-MOS
<FISCAL-YEAR-END>                              DEC-31-1998       DEC-31-1997
<PERIOD-END>                                   SEP-30-1998       SEP-30-1997
<CASH>                                         59,474,000        42,413,000
<SECURITIES>                                   42,255,000        41,782,000
<RECEIVABLES>                                  26,840,000        16,423,000
<ALLOWANCES>                                    4,171,000         2,664,000
<INVENTORY>                                        96,000                 0
<CURRENT-ASSETS>                              129,213,000       102,525,000
<PP&E>                                         12,511,000         8,411,000
<DEPRECIATION>                                  5,749,000         4,434,000
<TOTAL-ASSETS>                                145,504,000       112,402,000
<CURRENT-LIABILITIES>                          25,074,000        17,733,000
<BONDS>                                                 0                 0
                                   0                 0
                                             0                 0
<COMMON>                                          497,000           460,000
<OTHER-SE>                                    119,933,000        94,209,000
<TOTAL-LIABILITY-AND-EQUITY>                  145,504,000       112,402,000
<SALES>                                                 0                 0
<TOTAL-REVENUES>                               66,875,000        46,776,000
<CGS>                                                   0                 0
<TOTAL-COSTS>                                   6,882,000         4,499,000
<OTHER-EXPENSES>                               63,211,000        70,720,000
<LOSS-PROVISION>                                   60,000            91,000
<INTEREST-EXPENSE>                                      0                 0
<INCOME-PRETAX>                                (3,218,000)      (28,443,000)
<INCOME-TAX>                                   (2,749,000)       (2,007,000)
<INCOME-CONTINUING>                              (755,000)      (24,785,000)
<DISCONTINUED>                                          0           255,000
<EXTRAORDINARY>                                         0                 0
<CHANGES>                                               0                 0
<NET-INCOME>                                     (755,000)      (24,530,000)
<EPS-PRIMARY>                                       (0.03)            (1.09)
<EPS-DILUTED>                                       (0.03)            (1.09)
        


</TABLE>


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