<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                                        
                                   FORM 10-Q
                                        
[X]  Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934 for the Quarterly Period Ended September 30, 1998.

                                      OR

[ ]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934 for the Transition Period from_________to________.


                        COMMISSION FILE NUMBER 000-22647


                        PERITUS SOFTWARE SERVICES, INC. 
             (Exact Name of Registrant as Specified in its Charter)

      MASSACHUSETTS                                          04-3126919
(STATE OR OTHER JURISDICTION OF                           (I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)                           IDENTIFICATION NO.)

                                        
2 FEDERAL STREET, BILLERICA, MASSACHUSETTS                    01821
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                    (ZIP CODE)



                                        

                                (978) 670-0800
             (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)

                                NOT APPLICABLE
             (FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR,
                         IF CHANGED SINCE LAST REPORT)

  Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.   Yes   [ ].    No   [X ].

  Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date:


                                                                  
                                                          Shares outstanding 
  Title of Class                                          at December 7, 1998
-----------------------------                           ------------------------
Common Stock, $0.01 par value                                   16,349,986 
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

                                   FORM 10-Q

               FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 1998

                               TABLE OF CONTENTS

                                        
<TABLE> 
<CAPTION> 
                                                                                                     Page
                                                                                                     ----
<S>                                                                                                  <C> 
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
  Consolidated Balance Sheet as of September 30, 1998 and December 31, 1997........................    3

  Consolidated Statement of Operations for the Three and Nine Months Ended
    September 30, 1998 and 1997....................................................................    4

  Consolidated Statement of Cash Flows for the Nine Months Ended September 30,
    1998 and 1997..................................................................................    5

  Notes to Unaudited Consolidated Financial Statements.............................................    6

Item 2.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations.............................................................................   13

Item 3.  Quantitative and Qualitative Disclosures about Market Risk................................   26

PART II. OTHER INFORMATION
Item 1.  Legal Proceedings.........................................................................   26

Item 2.  Changes in Securities and Use of Proceeds.................................................   27

Item 3.  Defaults Upon Senior Securities ..........................................................   27

Item 4.  Submission of Matters to a Vote of Security Holders.......................................   27

Item 5.  Other Information.........................................................................   27

Item 6.  Exhibits and Reports on Form 8-K..........................................................   27

Signatures.........................................................................................   29

</TABLE> 

                                       2
<PAGE>
 
                        PART I.   FINANCIAL INFORMATION

ITEM 1.   FINANCIAL STATEMENTS 

                        PERITUS SOFTWARE SERVICES, INC.

                           CONSOLIDATED BALANCE SHEET
            (IN THOUSANDS, EXCEPT SHARE AND PER SHARE-RELATED DATA)
                                  (UNAUDITED)
<TABLE>
<CAPTION>
 
 
                                                                                      September 30, December 31,
                                                                                          1998           1997*
                                                                                     ---------------  -----------
<S>                                                                                  <C>              <C>
                                     ASSETS
Current assets:
 Cash and cash equivalents.........................................................        $  4,004     $ 11,340
 Short-term investments............................................................           2,500        3,000
 Accounts receivable, net of allowance for doubtful accounts of $745 and $95,
  respectively, and including amounts receivable from related parties of $-- and
  $289, respectively...............................................................           5,554       12,627
 Costs and estimated earnings in excess of billings on uncompleted contracts,
  including amounts on uncompleted contracts with related parties of $-- and
  $250, respectively...............................................................           1,692        2,547
 Prepaid expenses and other current assets.........................................           1,264          710
                                                                                           --------     --------
   Total current assets............................................................          15,014       30,224
Property and equipment, net........................................................           5,239        3,859
Intangible and other assets, net...................................................             676        5,787
                                                                                           --------     --------
                                                                                           $ 20,929     $ 39,870
                                                                                           ========     ========
                           LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
 Current portion of capital lease obligations......................................        $     91     $     51
 Current portion of long-term debt.................................................             342          292
 Accounts payable..................................................................             843        1,650
 Billings in excess of costs and estimated earnings on uncompleted contracts.......             394          976
 Deferred revenue..................................................................           2,125        2,818
 Other accrued expenses and other current liabilities..............................           5,760        3,506
                                                                                           --------     --------
   Total current liabilities.......................................................           9,555        9,293
Capital lease obligations..........................................................             308          144
Long-term debt.....................................................................              --          269
Other long-term liabilities........................................................           1,037           --
                                                                                           --------     --------
   Total liabilities...............................................................          10,900        9,706
                                                                                           --------     --------
Minority interest in majority-owned subsidiary.....................................              --          159
                                                                                           --------     --------
Stockholders' equity:
 Common stock, $.01 par value; 50,000,000 shares authorized; 16,294,985 and
  15,361,800 shares issued and outstanding at September 30, 1998 and December 31,
  1997, respectively...............................................................             163          154
 Additional paid-in capital........................................................         105,081      103,808
 Accumulated deficit...............................................................         (95,144)     (73,815)
 Note receivable from stockholder..................................................              --          (58)
 Cumulative translation adjustment.................................................             (71)         (84)
                                                                                           --------     --------
   Total stockholders' equity......................................................          10,029       30,005
                                                                                           --------     --------
                                                                                           $ 20,929     $ 39,870
                                                                                           ========     ========
 
*  Restated--See Note 2.
</TABLE>
                  The accompanying notes are an integral part
                  of these consolidated financial statements.

                                       3
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

                      CONSOLIDATED STATEMENT OF OPERATIONS
                 (IN THOUSANDS, EXCEPT PER SHARE-RELATED DATA)
                                  (UNAUDITED)
<TABLE>
<CAPTION>
 
 
                                                                        Three months             Nine months  
                                                                          ended                    ended     
                                                                        September 30,           September 30, 
                                                            ------------------------------  ----------------------
                                                                1998             1997*         1998         1997*
                                                            --------------  --------------  ----------- ----------
<S>                                                         <C>            <C>             <C>        <C>       
Revenue:                     
 Outsourcing services, including $106, $959,      
  $872, and $2,912 from related parties,      
   respectively......................................           $  2,270     $   2,979     $  7,685      $ 8,542
 License, including $--, $--, $255, and $-- from                                                                              
  related parties, respectively......................                763         3,957        8,602       12,744
 Other services, including $--, $--, $204, and $--                                                                              
  from related parties, respectively.................              2,260         1,716        9,522        4,207
                                                                --------     ---------     --------      -------
    Total revenue....................................              5,293         8,652       25,809       25,493
                                                                --------     ---------     --------      -------
Cost of revenue:                                                                                       
 Cost of outsourcing services, including $86,                                                                             
  $615, $750 and $1,580 from related                                                                                  
  parties, respectively..............................              1,826         2,444        5,833        6,847
 Cost of license.....................................                474           155        1,520          430
 Cost of other services, including $--, $--, $56,                                                                              
  and $--from related parties, respectively..........              2,551         1,280        7,636        3,605
                                                                --------     ---------     --------      -------
    Total cost of revenue............................              4,851         3,879       14,989       10,882
                                                                --------     ---------     --------      -------
    Gross profit.....................................                442         4,773       10,820       14,611
                                                                --------     ---------     --------      -------
Operating expenses:                                                                                    
 Sales and marketing.................................              3,980         2,197       10,355        5,615
 Research and development............................              2,150         1,975        7,195        5,578
 General and administrative..........................              2,969         1,053        6,017        2,853
 Impairment of long-lived assets.....................              4,294            --        4,294           --
 Restructuring charge................................              3,279            --        4,718           --
                                                                --------     ---------     --------      -------
    Total operating expenses.........................             16,672         5,225       32,579       14,046
                                                                --------     ---------     --------      -------
    Income (loss) from operations....................            (16,230)        (452)      (21,759)         565
                                                                                                       
Interest income, net.................................                 95           462          440          482
                                                                --------     ---------     --------      -------
 Income (loss) before gain on disposition of
  majority-owned subsidiary, income taxes and 
  minority interest in majority-owned subsidiary.....            (16,135)           10      (21,319)       1,047
Gain on disposition of majority-owned subsidiary.....                (11)           --          (11)          --
Provision (benefit) for                                                                                
 income taxes........................................                 --           (68)          25          104
                                                                --------     ---------     --------      -------
 Income (loss) before minority interest in                                                                                 
  majority-owned subsidiary..........................            (16,124)           78      (21,333)         943
Minority interest in majority-owned subsidiary.......                  8            (6)          (4)          15
                                                                --------     ---------     --------      -------
    Net income (loss)................................            (16,132)           84      (21,329)         928
Accrual of dividends on Series A and B preferred                                                                              
 stock...............................................                 --            --           --          675
Accretion to redemption value of redeemable stock....                 --            --           --           57 
                                                                --------     ---------     --------      -------
                                                                                                                                
          Net income (loss) available to common 
           stockholders..............................           $(16,132)    $      84     $(21,329)     $   196 
                                                                ========     =========     ========      =======
Net income (loss) per common share:                                                                             
  Basic..............................................           $  (0.99)    $    0.01     $  (1.32)     $  0.02
                                                                ========     =========     ========      =======
  Diluted............................................           $  (0.99)    $    0.01     $  (1.32)     $  0.02
                                                                ========     =========     ========      =======
Weighted average common shares outstanding:                                                                    
 Basic...............................................             16,294        12,432       16,121        8,107
                                                                ========     =========     ========      =======
 Diluted.............................................             16,294        14,280       16,121       11,466
                                                                ========     =========     ========      ======= 
 
</TABLE>
 *  Restated--See Note 2.

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

                                       4
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

                      CONSOLIDATED STATEMENT OF CASH FLOWS
                                 (IN THOUSANDS)
                                  (UNAUDITED)

<TABLE>
<CAPTION>
 
                                                                                                    Nine months                 
                                                                                                      ended                     
                                                                                                    September 30,               
                                                                                        --------------------------------------- 
                                                                                             1998                      1997*    
                                                                                        ----------------          -------------- 
<S>                                                                                  <C>                           <C>
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS
Cash flows from operating activities:
Net income (loss)..................................................................       $       (21,329)         $           928
Adjustments to reconcile net income (loss) to net cash provided by (used for)                                     
 operating activities:                                                                                            
 Depreciation and amortization.....................................................                 2,444                      797
 Minority interest in majority-owned subsidiary....................................                    (4)                      15
 Impairment of long-lived assets...................................................                 4,294                       --
 Gain on disposition of majority-owned subsidiary..................................                   (11)                      --
 Changes in assets and liabilities, net of effects from disposition:                                              
  Accounts receivable..............................................................                 6,837                   (1,806)
  Costs and estimated earnings in excess of billings on uncompleted contracts......                   855                      235
  Unbilled license revenue from related parties....................................                    --                    1,741
  Prepaid expenses and other current assets........................................                  (585)                    (451)
  Other assets.....................................................................                  (188)                      37
  Accounts payable.................................................................                  (598)                     415
  Billings in excess of costs and estimated earnings on uncompleted contracts......                   290                     (176)
  Deferred revenue.................................................................                  (693)                  (1,880)
  Other accrued expenses and other current liabilities.............................                 2,575                      405
  Other long-term liabilities......................................................                 1,037                       --
                                                                                          ---------------          ---------------
   Net cash provided by (used for) operating activities............................                (5,076)                     260
                                                                                          ---------------          ---------------
Cash flows from investing activities:                                                                             
 Cash of majority-owned subsidiary disposed, net of cash received..................                (1,074)                      --
 Sale of short-term investments....................................................                   500                       --
 Investments in subsidiary.........................................................                    --                     (272)
 Purchases of property and equipment...............................................                (2,726)                  (1,262)
                                                                                          ---------------          ---------------
   Net cash used for investing activities..........................................                (3,300)                  (1,534)
                                                                                          ---------------          ---------------
Cash flows from financing activities:                                                                             
 Proceeds from long-term debt......................................................                    --                      200
 Principal payments on long-term debt..............................................                  (219)                  (1,112)
 Principal payments on capital lease obligations...................................                   (70)                     (65)
 Proceeds from issuance of common stock, net of issuance costs.....................                 1,282                   41,201
 Proceeds from repayment of note receivable from stockholder.......................                    58                       --
                                                                                          ---------------          ---------------
   Net cash provided by financing activities.......................................                 1,051                   40,224
                                                                                          ---------------          ---------------
Effects of exchange rates on cash and cash equivalents.............................                   (11)                     (46)
                                                                                          ---------------          ---------------
Net increase (decrease) in cash and cash equivalents...............................                (7,336)                  38,904
Cash and cash equivalents, beginning of period.....................................                11,340                    7,388
                                                                                          ---------------          ---------------
Cash and cash equivalents, end of period...........................................       $         4,004          $        46,292
                                                                                          ===============          ===============
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS:                                                                            
 Cash paid for income taxes........................................................       $            78          $            60
 Cash paid for interest............................................................                    49                      142

</TABLE> 
 
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING ACTIVITIES:
In the nine months ended September 30, 1998 and 1997, the Company incurred
capital lease obligations of $458 and $--, respectively.
 
*  Restated--See Note 2.

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

                                       5
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

              NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1.   Basis of Presentation and Company Status

  The accompanying unaudited consolidated financial statements include the
accounts of Peritus Software Services, Inc. and its subsidiaries (the
"Company") and have been prepared by the Company without audit in accordance
with the Company's accounting policies, as described in the Company's Annual
Report on Form 10-K for the year ended December 31, 1997, as filed with the
Securities and Exchange Commission ("SEC"). In the opinion of management, the
accompanying unaudited consolidated financial statements contain all
adjustments, which other than the restatement adjustments for the three month
periods ended September 30, 1997, December 31, 1997, March 31, 1998 and June 30,
1998, restructuring charges for the three and nine months ended September 30,
1998, the impairment on long-lived assets for the three months ended September
30, 1998 and the disposition of the Company's majority-owned subsidiary during
the three months ended September 30, 1998, consist only of those of a normal
recurring nature, necessary for a fair presentation of the Company's financial
position, results of operations and cash flows at the dates and for the periods
indicated. While the Company believes that the disclosures presented are
adequate to make the information not misleading, these financial statements
should be read in conjunction with the consolidated financial statements and
related notes included in the Company's 1997 Annual Report on Form 10-K which
will be amended to reflect the restatement of the Company's results of
operations for 1997. The operating results for the three and nine months ended
September 30, 1998 are not necessarily indicative of the results to be expected
for the full year ending December 31, 1998.

  The Company's consolidated financial statements have been presented on the
basis that it is a going concern, which contemplates continuity of operations,
realization of assets and the satisfaction of liabilities in the ordinary course
of business. However, the Company experienced net losses of $67,490,000 and
$21,329,000 in the year ended December 31, 1997 and the nine months ended
September 30, 1998, respectively, and anticipates a net loss of $2,000,000 to
$4,500,000 in the fourth quarter of 1998, which raise doubt about its ability to
continue as a going concern after 1998. The Company believes that it has
sufficient cash to finance its operations through 1998. Thereafter, the
Company's cash flow requirements will depend on the results of future
operations. There can be no assurance that these expectations will be
realized.  After 1998, the Company's continued existence is dependent upon its
ability to achieve a cash flow breakeven position and/or to obtain additional
sources of financing. The Company implemented a restructuring plan on December
2, 1998 to further reduce its expenses which included the elimination of
approximately 45 employees and related facilities costs. It is anticipated that
this plan will result in a charge to earnings in the fourth quarter of 1998 of
approximately $1,200,000. The Company is also exploring strategic initiatives to
raise additional funds. In addition, the Nasdaq Stock Market, Inc. has several
requirements for listing on the Nasdaq National Market or the Nasdaq SmallCap
Market.  Failure to meet listing requirements may result in the Company being
moved from the National Market to the SmallCap Market or being de-listed.  There
can be no assurance that the Company will not be de-listed.

   The Company's bank has indicated that it will not renew or further extend its
revolving line of credit facility and demanded that cash collateral be provided
for all amounts outstanding under its equipment financing agreement with the
Company since the Company was in default of certain financial and operating
covenants thereunder. As of September 30, 1998, the Company has classified all
borrowings under this credit facility as short-term obligations. There are no
amounts outstanding under the revolving credit facility as of September 30,
1998, and the Company will provide cash collateral for all amounts outstanding
under the equipment financing agreement and for a $300,000 standby letter of 
credit issued by the bank subsequent to September 30,1998. There can be no
assurance that the Company will achieve a cash flow breakeven position or that
it will be able to raise additional funds through bank borrowings and/or debt
and/or equity financings. Reductions in expenses or the sale of assets may not
be adequate to bring the Company to a cash breakeven position. In addition,
there can be no assurance that such actions will not have an adverse affect on
the Company's ability to generate revenue or successfully implement any
strategic alternatives under consideration. Failure to establish a cash flow
breakeven position or raise additional funds through bank borrowings and/or
equity and/or debt financings would adversely impact the Company's ability to
continue as a going concern after 1998.


2.  RESTATEMENT OF QUARTERLY AND ANNUAL RESULTS OF OPERATIONS

  During a review of the Company's 1998 third quarter financial results
performed by Peritus' management, the Audit Committee of the Company's Board of
Directors and the Company's independent auditor, PricewaterhouseCoopers LLP
("PwC"), the Company determined that the Company's results of operations for the
quarterly periods ended September 30, 1997, December 31, 1997, March 31, 1998
and June 30, 1998 and for the year ended December 31, 1997 require restatement.
The 1998 restatements first relate to the recording by Peritus of approximately
$1.09 million of software license revenue for a single customer in the second
quarter of 1998. Peritus believed that the amount of software license revenue as
originally recorded reflected a part of an approximately $1.9 million business
arrangement agreed to between the parties under a signed purchase order. The
Company has since determined that the customer did not require a separate
license and, therefore, no license revenue

                                       6
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

          NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

should have been recorded.  The balance of the 1998 restatements relate
primarily to the Company's incorrect interpretation of the complex provisions
regarding recognition of revenue for combined software/services arrangements
under Statement of Position ("SOP") 97-2, "Software Revenue Recognition," issued
by the American Institute of Certified Public Accountants ("AICPA"), and
effective for the Company as of January 1, 1998.  In applying the Statement to
its new year 2000 renovation offerings which the Company commenced in the first
quarter, the Company mistimed the recognition of revenue between quarters under
certain contracts providing for the delivery of combined software and services.
The 1997 restatements involve two instances where the Company had recorded
revenue for software licenses in advance of shipment of the software.  The first
instance involved the recording of software license revenue of $1.2 million in
the third quarter of 1997.  The Company has determined that the software
involved was not shipped until early in the fourth quarter of 1997 and that
payment of the license fee was received in the fourth quarter.  Therefore, the
Company will restate its third quarter 1997 results to exclude the $1.2 million
license fee and its fourth quarter 1997 results to include the $1.2 million
license fee.  The second instance involved $571,000 of license revenue and
$21,000 of associated maintenance revenue originally recorded in the fourth
quarter of 1997.  The Company has determined that the software involved was not
shipped until 1998.  The Company encountered collection difficulties with the
customer during 1998.  Despite entering into a settlement agreement with the
customer in the second quarter of 1998, the Company concluded in the third
quarter of 1998 that it would be unable to realize the amounts recorded.
Accordingly, the Company will restate its fourth quarter 1997 results to remove
the $592,000 of revenue involved and has not recorded this revenue in any
subsequent period. As a result of the restatements of results for 1997, the 
Company was informed by PwC that users of the Company's 1997 financial 
statements should no longer rely upon PwC's opinion for the year ended December
31, 1997. The Company expects the opinion will be reinstated once it completes 
and files its amended Form 10-K.
 
  The Company intends to amend its prior filings on Form 10-Q for the quarters
ended September 30, 1997, March 31, 1998 and June 30, 1998 as well as its Form
10-K for the year ended December 31, 1997.  In the opinion of management, all
adjustments necessary to revise the quarterly and year-end financial statements
have been recorded.  Following is a summary of the unaudited results of
operations for these periods (in thousands, except per share-related data):




<TABLE>
<CAPTION>
                                                  Quarterly Periods Ended                     
                                  ------------------------------------------------------------    Year Ended  
                                  September 30,         December 31,     March 31,    June 30,    December 31,
                                       1997                 1997            1998        1998          1997
----------------------------------------------------------------------------------------------------------------------- 
<S>                               <C>             <C>                    <C>         <C>          <C>
As previously reported:                                             
                                                                    
Revenue                                  $9,852         $ 13,608           $10,150      $11,830       $ 40,301
                                                                    
Income (loss) from operations               748          (69,346)           (2,775)      (1,102)       (67,582)
                                                                    
Net income (loss)                         1,166          (68,920)           (2,566)        (979)       (66,910)
                                                                    
Diluted net income (loss) per share      $ 0.08         $  (4.97)          $ (0.16)     $ (0.06)      $  (6.97)
 
 
<CAPTION>  
                                                  Quarterly Periods Ended                     
                                  -----------------------------------------------------------    Year Ended  
                                  September 30,         December 31,    March 31,    June 30,    December 31,
                                       1997                 1997           1998        1998          1997
---------------------------------------------------------------------------------------------------------------------- 
<S>                               <C>             <C>                   <C>         <C>          <C>
                                                                    
As restated:                                                        
                                                                    
Revenue                                  $8,652          $ 14,216         $ 9,433      $11,083       $ 39,709
                                                                    
Income (loss) from operations              (452)          (68,738)         (3,567)      (1,962)       (68,173)
                                                                    
Net income (loss)                            84           (68,418)         (3,358)      (1,839)       (67,490)
                                                                    
Diluted net income (loss) per share      $ 0.01          $  (4.93)        $ (0.21)     $ (0.11)      $  (7.03)
 
</TABLE>

                                       7
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

          NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

3.  Revenue Recognition

     Revenue under contracts to provide outsourced software maintenance,
reengineering and development services is recognized using the percentage-of-
completion method and is based on the ratio that labor-hours incurred to date
bear to estimated total labor-hours at completion, provided that collection of
the related receivable is probable. Adjustments to contract cost estimates are
made in the periods in which the facts which require such revisions become
known. When the revised estimates indicate a loss, such loss is provided for
currently in its entirety. The costs of providing warranties and follow-on
customer support related to services performed are not significant and have been
accrued or revenue has been deferred, as appropriate. Costs and estimated
earnings in excess of billings on uncompleted contracts represent revenue
recognized in excess of amounts billed. Billings in excess of costs and
estimated earnings on uncompleted contracts represent billings in excess of
revenue recognized.

     The Company licenses its software products and methodologies to end users
and to value added integrators for their use in serving their clients.  License
fees charged to end users are fixed, with the amount of the fee based on the
estimated total lines of code to be processed or number of CPUs licensed.
License fees charged to value added integrators are generally royalties based on
lines of code processed or to be processed or number of CPUs licensed.  Revenue
from software licenses is recognized when licensed software and methodologies
have been delivered, the fee is fixed and determinable and collection of the
related receivable is probable.  The Company generally does not provide its
customers with the right to return software licenses and, once due, license fees
are non-refundable.

     Other services provided by the Company include direct delivery contracts as
well as technology transfer arrangements, product training, value added
integrator sales training, consulting services and software product maintenance.
Under direct delivery contracts, the Company provides full and pilot year 2000
renovations and renovation quality evaluation ("RQE") services for clients using
the Company's AutoEnhancer/2000 and/or Vantage YR2000 software.  Revenue from
full year 2000 renovation and RQE contracts is recognized using the percentage-
of-completion method and is based on the ratio that labor-hours incurred to date
bear to estimated total labor-hours at completion, provided that collection of
the related receivable is probable. Revenue from pilot direct delivery contracts
is recognized over the duration of such contracts as work is performed and
defined milestones are attained. Adjustments to contract cost estimates are made
in the periods in which the facts which require such revisions become known.
When the revised estimates indicate a loss, such loss is provided for currently
in its entirety.  In cases where vendor-specific objective evidence of fair
value of both the license and service component exists under a direct delivery
contract, revenue recognized is allocated between license revenue and other
services revenue for income statement classification purposes based on their
relative fair values.  Revenue from technology transfer arrangements, product
and sales training and consulting services is billed on a time-and-materials
basis and is recognized as the services are provided.  Revenue from software
product maintenance contracts on the Company's licensed software products,
including client support bundled with the initial license fee, is deferred and
recognized ratably over the contractual periods during which the services are
provided.


4.   LEGAL PROCEEDINGS

  The Company and certain of its officers and directors have been named as
defendants in purported class action lawsuits filed in the United States
District Court for the District of Massachusetts by Robert Downey on April 1,
1998, by Scott Cohen on April 7, 1998, by Timothy Bonnett on April 9, 1998, by
Peter Lindsay on April 17, 1998, by Harry Teague on April 21, 1998, by Jesse
Wijntjes on April 29, 1998, by H. Vance Johnson and H. Vance Johnson as Trustee
for the I.O.R.D. Profit-Sharing Plan on May 6, 1998, by John B. Howard, M.D. on
May 21, 1998 and by Helen Lee on May 28, 1998 (collectively, the "complaints").
The Downey complaint alleges a class period of October 22, 1997 to March 27,
1998. The Cohen, Bonnett, Wijntjes and Lee complaints allege a class period of
January 27, 1998 to March 27, 1998. The Lindsay, Teague and Johnson complaints
allege a class period of January 28, 1998 to March 27, 1998. The Howard
complaint alleges a class period of July 3, 1997 to March 27, 1998. The
complaints principally allege that the defendants violated federal securities
laws by making false and misleading statements and by failing to disclose
material information concerning the Company's December 1997 acquisition of
substantially all of the assets and assumption of certain liabilities of the
Millennium Dynamics, Inc. ("MDI") business from American Premier Underwriters,
Inc., thereby allegedly causing the value of the Company's common stock to be
artificially inflated during the purported class periods. In addition, the
Howard complaint alleges violation of federal securities laws as a result of the
Company's purported failure to disclose material information in connection with
the Company's initial public offering on July 2,

                                       8
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

1997, and also names Montgomery Securities, Inc., Wessels, Arnold & Henderson,
and H.C. Wainwright & Co., Inc. as defendants. The complaints further allege
that certain officers and/or directors of the Company sold stock in the open
market during the class periods and seek unspecified damages. On or about June
1, 1998, all of the named plaintiffs and additional purported class members
filed a motion for the appointment of several of those individuals as lead
plaintiffs, for approval of lead and liaison plaintiffs' counsel and for
consolidation of the actions. The court granted that motion on June 18, 1998.
Although the Company believes that it and the other defendants have meritorious
defenses to the claims made in the complaints and intends to contest the
lawsuits vigorously, an adverse resolution of the lawsuits could have a material
adverse effect on the Company's financial condition and results of operations in
the period in which the litigation is resolved. The Company is not presently
able to reasonably estimate potential losses, if any, related to the complaints.

5.   RESTRUCTURING CHARGES

  In September 1998, the Company announced and recorded a non-recurring charge
of $3,372,000 consisting in part of severance payments associated with the
termination of approximately 33% of the Company's employees (89 employees).  At
September 30, 1998, all 89 employees had been terminated with no further
terminations remaining under the restructuring.  In addition, a significant
portion of the restructuring charge related to the closure of two research and
development centers and a reduction of occupied space at the Company's
headquarters in Billerica, MA, consisting primarily of accrual of future lease
payments and other related costs, net of estimated sublease income. Payments
related to terminated employees are expected to be completed by December 1998
for 82 employees and September 1999 for the remaining 7 employees. Payments
related to the closure of facilities and reduction of occupied space are
expected to be completed by June 2003. The Company has estimated that the
restructuring will result in a reduction of approximately $1,900,000 in salary
and related costs and $250,000 in lease related costs on a quarterly basis
beginning in the fourth quarter of 1998.

  In March 1998, the Company announced its intentions for a strategic
restructuring to refocus the Company's investments and to reduce its operating
expenses. The Company effected this restructuring, which was finalized in the
second quarter of 1998, and recorded a non-recurring charge of $1,439,000
consisting in part of severance payments associated with the termination of
approximately 12% of the Company's employees in April 1998 (48 employees). At
June 30, 1998, all 48 employees had been terminated with no further terminations
remaining under the restructuring. In addition, a significant portion of the
restructuring charge related to the closure of two research and development and
outsourcing centers, consisting primarily of accrual of future lease payments 
and other related costs, net of estimated sublease income, and support costs for
a discontinued product, in excess of related services revenue. Payments related
to terminated employees were completed in June 1998 for 46 employees and are
expected to be completed by September 1999 for the remaining 2 employees.
Payments related to the closure and reduction of facilities are expected to be
complete by April 2003. The restructuring resulted in a reduction of
approximately $960,000 in salary and related costs and $90,000 in facility
related costs on a quarterly basis beginning in second quarter of 1998.

  The amounts accrued to, charged against and other adjustments made to the
restructuring accrual during the third quarter of 1998 and the composition of
the remaining balance at September 30, 1998 was as follows:

<TABLE>
<CAPTION>
 
 
                                                       Balance      Q3 1998    Q3 1998      Other                Balance
                                                    June 30, 1998   Accrual    Charges      Adjustments     September 30, 1998
                                                   --------------   -------    --------     -----------    -------------------
<S>                                                <C>              <C>        <C>          <C>            <C>
(in thousands)
 
Provision for severance and benefit payments to
  terminated employees...........................       $421        $1,909     $(115)          $ --              $2,215      
Provisions related to closure of facilities and                                                                              
 reduction of occupied space.....................        327         1,463      (132)           (61)              1,597      
Other............................................        124            --       (62)           (32)                 30      
                                                        ----        ------     -----           ----              ------      
 Total...........................................       $872        $3,372     $(309)          $(93)             $3,842      
                                                        ====        ======     =====           ====              ======       
</TABLE>
 
     As of September 30, 1998, $2,902,000 of the remaining balance of the
restructuring accrual is expected to be paid by September 30, 1999 with the
remaining balance of $940,000 being paid thereafter.

                                       9
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

          NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

6.   IMPAIRMENT OF LONG-LIVED ASSETS

     The Company periodically assesses whether any events or changes in
circumstances have occurred that would indicate that the carrying amount of a
long-lived asset might not be recoverable. When such an event or change in
circumstance occurs, the Company evaluates whether the carrying amount of such
asset is recoverable by comparing the net book value of the asset to estimated
future undiscounted cash flows, excluding interest charges, attributable to such
asset. If it is determined that the carrying amount is not recoverable, the
Company recognizes an impairment loss equal to the excess of the carrying amount
of the asset over the estimated fair value of such asset.

     Due to lower than anticipated revenue and losses in excess of expectations
during the quarter ended September 30, 1998, the Company adopted a plan to stop
development of all existing and in-process products originally acquired from MDI
in December 1997, including all Vantage YR2000 renovation and testing software
tools and the generic mass change product. Substantially all direct sales
efforts relating to existing Vantage YR2000 products was also stopped. In
connection with these actions, the Company also undertook a restructuring of its
operations (Note 5) which included the closure of the Company's research and
development facilities in Cincinnati, Ohio and Lisle, IL. and the termination
of substantially all the employees at these facilities. As a result of these
events, management concluded that an assessment of the recoverability of
intangible assets recorded in connection with the acquisition of MDI in December
1997 was required at September 30, 1998. The Company determined that its
property and equipment at these locations was not subject to impairment as
substantially all such assets were scheduled to be redeployed within the 
Company.

     In connection with the assessment, management prepared forecasts of the
expected future cash flows related to these intangible assets on an undiscounted
basis and without interest charges. Due to the fact that product development
efforts had been stopped, the Company concluded that the existing technology
acquired as part of the MDI acquisition would only be used in existing Vantage
YR2000 products. As a result of this analysis, management determined that the
estimated undiscounted net cash flows to be generated by acquired technology
recorded as part of the MDI acquisition were less than the asset's net book
value as of September 30, 1998. Accordingly, the acquired technology was 
written-down to $289,000, its estimated fair value, using a discounted cash flow
model. With regard to intangible assets relating to assembled workforce and
goodwill acquired from MDI, management concluded that the net book value of
these amounts could no longer be supported due to the termination of
substantially all former MDI employees and the shift of the Company's strategy
away from MDI-related products. Accordingly, the Company recorded a non-
recurring impairment charge totaling $4,294,000 during the quarter ended
September 30, 1998.

     Management's estimates of forecasted cash flows required an evaluation of
various risks and uncertainties.  Although management has made its best estimate
of these factors based on current conditions and expected trends and events, it
is reasonably possible that changes could occur in the near term which could
adversely affect management's estimates of forecasted cash flows.  If such
changes occur, asset impairment write-downs could be required in the future and
such write-downs could be material to the Company's financial statements.

7.  IN-PROCESS RESEARCH AND DEVELOPMENT

     In connection with the acquisition of MDI, the Company recorded a charge to
operations during the fourth quarter of 1997 of $70,800,000 representing
purchased in-process technology that had not yet reached technological
feasibility and had no alternative future use. The value was determined via an
independent appraisal. At the time of the acquisition of MDI, the Company's plan
for the acquired projects included continued development of MDI's core
technologies aiming to significantly enhance their features and functionality in
order to gain an increasing share of the year 2000 software market. In addition,
the Company planned to continue to focus product plans around developing
comprehensive testing capabilities for MDI's Vantage YR2000 product and a
generic mass change software product with capabilities other than year 2000
corrections, including a Euro currency conversion application. The cost to
complete the in-process development was originally estimated at approximately
$18.7 million to be incurred through the end of the year 2000. These estimated
costs were largely for personnel involved in the planning, design, coding,
integration, testing and modification of products to be derived from the in-
process technologies. However, due to lower than anticipated revenue and losses
in excess of expectations during the quarter ended September 30, 1998, the
Company stopped development of all new versions of existing Vantage YR2000
products, the Vantage YR2000 testing product and the generic mass change
software product. As a result of these actions, the Company closed its research
and development centers in Cincinnati, Ohio, and Lisle, IL, terminated
substantially all employees at those facilities and recorded a related non-
recurring restructuring charge (Note 5). Through September 30, 1998, the Company
had incurred approximately $2,200,000 in costs to develop these in-process
technologies. The Company does not expect to incur additional development costs
for these in-process technologies.

                                       10
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

     NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
     The Company has received and responded to a comment letter related to the
Company's Form 10-K for the year ended December 31, 1997 from the Securities and
Exchange Commission ("SEC") regarding, among other things, the Company's
accounting for in-process research and development in connection with its
acquisition of MDI. A response to the Company's letter has not yet been received
from the SEC. Although the Company believes it has properly accounted for the
item, a different conclusion would require further restatement of the Company's
results beginning with the fourth quarter of 1997.

8.   COMPREHENSIVE INCOME (LOSS)

  The Company adopted Statement of Financial Accounting Standards ("SFAS") No.
130, "Reporting Comprehensive Income" effective January 1, 1998. This statement
establishes standards for the reporting and display of comprehensive income and
its components. Comprehensive income is defined as the change in equity of a
business enterprise during a period from transactions and other events and
circumstances from non-owner sources. It includes all changes in equity during a
period except those resulting from investments by owners and distributions to
owners. This standard requires that an enterprise display an amount representing
total comprehensive income for the period.

  For the three and nine months ended September 30, 1998 and 1997, the Company's
comprehensive income (loss) was as follows (in thousands):
<TABLE>
<CAPTION>
 
                                                Three months ended            Nine months ended
                                                   September 30,                September 30,
                                        -------------------------------       ------------------
                                            1998              1997               1998      1997
                                        ------------      -------------       ----------  ------
<S>                                     <C>               <C>                 <C>         <C>
Net income (loss)..................       $(16,132)          $  84             $(21,329)  $ 928
Cumulative translation adjustment..              2              (7)                  13     (45)
                                          --------           -----             --------   -----
                                          $(16,130)          $  77             $(21,316)  $ 883
                                          ========           =====             ========   =====
</TABLE>
9.   NET INCOME (LOSS) PER SHARE

  In February 1997, the Financial Accounting Standards Board ("FASB") issued
SFAS No. 128, "Earnings per Share", which supersedes Accounting Principles
Board Opinion Accounting ("APB") No. 15 and specifies the computation,
presentation and disclosure requirements of earnings per share. SFAS No. 128
requires the presentation of "basic" earnings per share and "diluted"
earnings per share. Basic earnings per share is computed by dividing the net
income (loss) available to common stockholders by the weighted average shares of
outstanding common stock. For purposes of calculating diluted earnings per
share, the denominator includes both the weighted average shares of common stock
outstanding and, when not anti-dilutive, potential common stock, including
outstanding stock options.

  The Company adopted SFAS No. 128 in the fourth quarter of 1997 and has
restated income (loss) per share amounts for all periods presented herein, as
required.

10.   RECENTLY ISSUED ACCOUNTING STANDARDS

  In October 1997, the Accounting Standards Executive Committee ("AcSEC") of the
AICPA issued SOP 97-2, "Software Revenue Recognition."  SOP 97-2 provides
guidance on the timing and amount of revenue recognition when licensing,
selling, leasing or otherwise marketing computer software and became effective
for transactions entered into by the Company beginning on January 1, 1998.
Subsequently, in March 1998, AcSEC issued SOP 98-4, "Deferral of the Effective
Date of a Provision of SOP 97-2, Software Revenue Recognition."  SOP 98-4
deferred certain provisions of SOP 97-2 pertaining to its requirements for what
constitutes vendor-specific objective evidence ("VSOE") of the fair value of
individual elements of a multiple-element arrangement for a one-year period.  At
the same time, AcSEC immediately began a project to further clarify the
requirements surrounding VSOE.  This project resulted in SOP 98-9, "Modification
of SOP 97-2, `Software Revenue Recognition,' with Respect to Certain
Transactions," which was cleared by the FASB in November 1998.  In SOP 98-9,
AcSEC decided to retain the limitations on what is considered VSOE of fair value
in a software arrangement.  Accordingly, the limitations on VSOE of fair value
that were deferred by SOP 98-4 will be effective for transactions that are
entered into in fiscal years beginning after March 15, 1999.  However, SOP 98-9
provides a limited exception to the full deferral of revenue that the provisions
of SOP 97-2 may require for arrangements in which the entity has a contracted
price for the entire arrangement and VSOE of the fair value of each undelivered
element exists.  Formal issuance of SOP 98-9 is expected in December 1998.
Based upon its reading and interpretation of SOP 97-2, SOP 98-4 and SOP 98-9,
the Company believes that its current revenue recognition policies and

                                       11
<PAGE>
 
                        PERITUS SOFTWARE SERVICES, INC.

  NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

practices are materially consistent with the provisions of the guidance set
forth in these pronouncements.  Accordingly, the adoption of this guidance has
not materially affected its financial position or results of operations and is
not expected to have a material impact in future periods.

  In February 1998, AcSEC issued SOP 98-1, "Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use." SOP 98-1 establishes
the accounting for costs of software products developed or purchased for
internal use, including when such costs should be capitalized. The Company does
not expect SOP 98-1, which is effective for the Company beginning January 1,
1999, to have a significant impact on the Company's financial condition or
results of operations.

  In June 1997, the FASB issued SFAS No. 131, "Disclosures about Segments of an
Enterprise and Related Information" which supersedes SFAS No. 14. This
statement changes the way that public business enterprises report segment
information, including financial and descriptive information about their
selected segment information. Operating segments are defined as revenue-
producing components of the enterprise which are generally used internally for
evaluating segment performance. SFAS No. 131 will be effective for the Company's
fiscal year ending December 31, 1998, is for disclosure only and will not affect
the Company's financial position or results of operations.

  In June 1998, the FASB issued SFAS No. 133, "Accounting for Derivative
Instruments and Hedging Activities."  The new standard establishes accounting
and reporting standards for derivative instruments, including certain derivative
instruments embedded in other contracts, (collectively referred to as
derivatives) and for hedging activities.  SFAS No. 133 is effective for all
fiscal quarters of fiscal years beginning after June 15, 1999.  The Company does
not invest in derivative instruments or engage in hedging activities.  As a
result, SFAS No. 133 is not expected to have a material affect on its financial
position or results of operations.


11.   DISPOSITION OF MAJORITY-OWNED SUBSIDIARY

     In July 1998, the Company divested 100% of its equity interest in its
majority-owned Spanish subsidiary, Persist, S. A. ("Persist"), to Persist for
cash proceeds totaling $470,000.  Accordingly, the results of operations of
Persist subsequent to the date of disposition have been excluded from the
Company's consolidated results for the quarter ended September 30, 1998 and the
Company's consolidated September 30, 1998 balance sheet excludes Persist's
assets and liabilities.  The gain on this transaction was determined as the
excess of cash proceeds received by the Company over the net assets of Persist
at the date of disposition and reflects the realization of the cumulative impact
of foreign exchange rates on the balance sheet of Persist while a subsidiary of
the Company.

12.   SUBSEQUENT EVENT

  On December 2, 1998, the Company announced additional restructuring plans to
reorient the Company for transition to greater outsourcing emphasis while
continuing to satisfy its year 2000 customers.  The restructuring included the
termination of 45 employees or 24% of its workforce.  In addition, a significant
portion of the restructuring relates to the further reduction of occupied space
at its headquarters in Billerica, MA.  The restructuring charge to be recorded
in the quarter ended December 31, 1998 relating to these actions is expected to
be approximately $1.2 million. In addition, the Company plans to review its
equipment to determine if these employee reductions warrant disposal of excess
equipment.

                                       12
<PAGE>
 
ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS

Overview

  Peritus Software Services, Inc. ("Peritus") was founded in 1991 to address
the growing market for managing and maintaining the installed base of software
in organizations. The Company focused its efforts on the delivery of software
maintenance outsourcing services until 1995, when it began to devote significant
resources to the development of software tools addressing the problems
associated with mass changes to application systems and their associated
databases, particularly the year 2000 problem. In 1996, the Company began
licensing its AutoEnhancer/2000 software, which was designed to address the year
2000 problem, to value added integrators and directly to end users. In 1996, the
Company expanded its research and development efforts through the acquisition of
Vista Technologies Incorporated ("Vista"), a developer of computer-aided
engineering software. In 1997, the Company expanded its products offerings and
research and development efforts by releasing an enhanced version of the
AutoEnhancer/2000 software, which enables a client to perform logic correction
only changes with regard to year 2000 renovations, and through the acquisition
of substantially all of the assets and the assumption of certain liabilities of
the business of Millennium Dynamics, Inc. ("MDI"), a software tools company
with year 2000 products and research and development projects for the IBM
mainframe and AS/400 platforms, from American Premier Underwriters, Inc.
("APU"). Although the Company continues to license tools to address the year
2000 problem, the Company, in response to changes in the markets for the
Company's products and services, emphasized  the direct delivery of year 2000
renovation services and renovation quality evaluation ("RQE") services in the
beginning of 1998 and also began to  refocus the Company's business on software
maintenance outsourcing services.  As the market continued to shift from the
Company's year 2000 products and services during the third quarter of 1998, the
Company's overall strategy is to grow its software maintenance outsourcing
business over the long term and to meet its clients needs for year 2000
renovation services and RQE services. In July 1998, the Company announced its
software maintenance outsourcing offerings, "Software Asset Maintenance for
Software Providers" and "Software Asset Maintenance for Information Systems",
which are outsourcing solutions designed specifically for the manufacturers of
system software and software products and for information technology departments
that maintain application software, respectively.

  The Company derives its revenue from software maintenance outsourcing
services, software and methodology licensing and other services (including
direct delivery of year 2000 renovation and RQE services) sold directly to end
users or indirectly via value added integrators, and its clients include
primarily Fortune 1000 companies and similarly sized business and government
organizations worldwide. The Company's products and services are marketed
through its direct sales force, both domestically and in Europe, and through
value added integrators operating worldwide.

During a review of the Company's 1998 third quarter financial results performed
by Peritus' management, the Audit Committee of the Company's Board of Directors
and the Company's independent auditor, PricewaterhouseCoopers LLP ("PwC"), the
Company determined that the Company's results of operations for the quarterly
periods ended September 30, 1997, December 31, 1997, March 31, 1998 and June 30,
1998 and for the year ended December 31, 1997 require restatement. The 1998
restatements first relate to the recording by Peritus of approximately $1.09
million of software license revenue for a single customer in the second quarter
of 1998. Peritus believed that the amount of software license revenue as
originally recorded reflected a part of an approximately $1.9 million business
arrangement agreed to between the parties under a signed purchase order. The
Company has since determined that the customer did not require a separate
license and, therefore, no license revenue should have been recorded. The
balance of the 1998 restatements relate primarily to the Company's incorrect
interpretation of the complex provisions regarding recognition of revenue for
combined software/services arrangements under Statement of Position ("SOP") 97-
2, "Software Revenue Recognition," issued by the American Institute of Certified
Public Accountants ("AICPA"), and effective for the Company as of January 1,
1998. In applying the Statement to its new year 2000 renovation offerings which
the Company commenced in the first quarter, the Company mistimed the recognition
of revenue between quarters under certain contracts providing for the delivery
of combined software and services. The 1997 restatements involve two instances
where the Company had recorded revenue for software licenses in advance of
shipment of the software. The first instance involved the recording of software
license revenue of $1.2 million in the third quarter of 1997. The Company has
determined that the software involved was not shipped until early in the fourth
quarter of 1997 and that payment of the license fee was received in the fourth
quarter. Therefore, the Company will restate its third quarter 1997 results to
exclude the $1.2 million license fee and its fourth quarter 1997 results to
include the $1.2 million license fee. The second instance involved $571,000 of
license revenue and $21,000 of associated maintenance revenue originally
recorded in the fourth quarter of 1997. The Company has determined that the
software involved was not shipped until 1998. The Company encountered collection
difficulties with the customer during 1998. Despite entering into a settlement
agreement with the customer in the second quarter of 1998, the Company concluded
in the third quarter of 1998 that it would be unable to realize the amounts
recorded. Accordingly, the Company will restate its fourth quarter 1997 results
to remove the $592,000 of revenue involved and has not recorded this revenue in
any subsequent period. As a result of the restatements of results for 1997, the 
Company was informed by PwC that users of the Company's 1997 financial 
statements should no longer rely upon PwC's opinion for the year ended December 
31, 1997. The Company expects the opinion will be reinstated once it completes 
and files its amended Form 10-K.

                                       13
<PAGE>
 
  The Company intends to amend its prior filings on Form 10-Q for the quarters
ended September 30, 1997, March 31, 1998 and June 30, 1998 as well as its Form
10-K for the year ended December 31, 1997.  In the opinion of management, all
adjustments necessary to revise the quarterly and year-end financial statements
have been recorded.  Following is a summary of the unaudited results of
operations for these periods (in thousands, except per share-related data):

<TABLE>
<CAPTION>
 
 
                                                  Quarterly Periods Ended               
                                  --------------------------------------------------------------           Year Ended 
                                  September 30,         December 31,        March 31,    June 30,          December 31,
                                       1997                 1997               1998        1998                1997
----------------------------------------------------------------------------------------------------------------------------------
<S>                               <C>             <C>                       <C>         <C>          <C>
 
As previously reported:
 
Revenue                                  $9,852            $ 13,608           $10,150      $11,830           $ 40,301
                                                                           
Income (loss) from operations               748             (69,346)           (2,775)      (1,102)           (67,582)
                                                                           
Net income (loss)                         1,166             (68,920)           (2,566)        (979)           (66,910)
                                                                           
Diluted net income (loss) per share      $ 0.08            $  (4.97)          $ (0.16)     $ (0.06)          $  (6.97)
 
<CAPTION>
 
 
                                                  Quarterly Periods Ended               
                                  --------------------------------------------------------------           Year Ended 
                                  September 30,         December 31,        March 31,    June 30,          December 31,
                                       1997                 1997               1998        1998                1997
----------------------------------------------------------------------------------------------------------------------------------
<S>                               <C>             <C>                       <C>         <C>          <C>
 
As restated:
 
Revenue                                  $8,652            $ 14,216           $ 9,433      $11,083           $ 39,709 
                                                                                                                      
Income (loss) from operations              (452)            (68,738)           (3,567)      (1,962)           (68,173)
                                                                                                                      
Net income (loss)                            84             (68,418)           (3,358)      (1,839)           (67,490)
                                                                                                                      
Diluted net income (loss) per share      $ 0.01            $  (4.93)          $ (0.21)     $ (0.11)          $  (7.03) 
 
</TABLE>

THREE MONTHS ENDED SEPTEMBER 30, 1998 COMPARED TO THREE MONTHS ENDED
SEPTEMBER 30, 1997

 REVENUE

  Total revenue decreased 38.8% to $5,293,000 in the three months ended
September 30, 1998 from $8,652,000 in the three months ended September 30, 1997.
This decrease in revenue was primarily due to a decrease in the licensing of the
Company's year 2000 Auto Enhancer/2000 software. During the three months ended
September 30, 1998, three customers generated 15.2%, 13.4% and 10.4% of total
revenue, respectively. International revenue decreased 36.7% to $505,000 in 1998
from $801,000 in 1997. In July 1998, the Company divested 100% of its equity
interest in its majority-owned Spanish subsidiary, Persist, S. A. ("Persist"),
to Persist for cash proceeds totaling $470,000. Accordingly, the results of
operations of Persist subsequent to the date of disposition have been excluded
from the Company's consolidated results for the quarter ended September 30,
1998. Persist generated 28.1% of the Company's international revenue in the
three months ended September 30, 1998 while sales to value added integrators and
end users accounted for the remaining 71.9%. Persist generated substantially all
of the Company's international revenue in 1997. For the three months ended
September 30, 1998, the Company recorded $106,000 of related party revenue from
one customer which is a shareholder of Persist.

 Outsourcing Services

  Outsourcing services revenue decreased 23.8% to $2,270,000 in the three months
ended September 30, 1998 from $2,979,000 in the three months ended September 30,
1997. The decrease in outsourcing services revenue in absolute dollars was

                                       14
<PAGE>
 
primarily attributable to the divestiture of Persist in July 1998, the
termination of one outsourcing contract and the recognition of lesser amounts of
revenue under the percentage-of-completion method on existing outsourcing
contracts that were in their later phases during 1998. As a percentage of total
revenue, outsourcing services revenue increased to 42.9% in the three months
ended September 30, 1998 from 34.4% in the three months ended September 30,
1997. The increase in outsourcing services revenue as a percentage of total
revenue reflects the decreased contribution of license and other services
revenue to total revenue during the three months ended September 30, 1998 when
compared to the comparable period for the prior year. Outsourcing services
remain a major component of the solutions offered by the Company, and the
Company anticipates that such services will continue to account for a
significant portion of total revenue for the foreseeable future. In July 1998,
the Company announced its software maintenance outsourcing offerings, "Software
Asset Maintenance for Software Providers" and "Software Asset Maintenance for
Information Systems", which are outsourcing solutions designed specifically for
the manufacturers of system software and software products and for information
technology departments that maintain application software, respectively.

 License

  License revenue was $763,000 in the three months ended September 30, 1998, or
14.4% of total revenue, compared to $3,957,000, or 45.7% of total revenue, in
the three months ended September 30, 1997. The decrease in license revenue for
the three months ended September 30, 1998 was primarily attributable to the
decrease in direct delivery of licensed software to end users and to decreased
license fees from value added integrators. In the future, the Company does not
expect any sustained increases to license revenue.


 Other Services

  Other services revenue increased 31.7% to $2,260,000 in the three months ended
September 30, 1998, from $1,716,000 in the three months ended September 30,
1997. As a percentage of total revenue, other services revenue was 42.7% in the
three months ended September 30, 1998 and 19.8% in the three months ended
September 30, 1997. The increase in other services revenue in absolute dollars
was primarily attributable to an increase in year 2000 renovation and RQE
services performed by Company personnel using the Company's year 2000 products, 
offset by a decrease in consulting and maintenance revenues.


COST OF REVENUE

 Cost of Outsourcing Services Revenue

  Cost of outsourcing services revenue consists primarily of salaries, benefits
and overhead costs associated with delivering outsourcing services to clients.
The cost of outsourcing services revenue decreased 25.3% to $1,826,000 in the
three months ended September 30, 1998 from $2,444,000 for the three months ended
September 30, 1997. Cost of outsourcing services revenue as a percentage of
outsourcing services revenue decreased to 80.4% in the three months ended
September 30, 1998 from 82.0% in the three months ended September 30, 1997. The
decrease in cost of outsourcing services revenue in absolute dollars was due
primarily to the reduction of resources related to the termination of one
outsourcing contract.


 Cost of License Revenue

  Cost of license revenue consists primarily of salaries, benefits, amortization
expense of intangibles related to the MDI acquisition and related overhead costs
associated with license-related materials packaging and freight. Cost of license
revenue was $474,000 in the three months ended September 30, 1998, or 62.1% of
license revenue, compared to $155,000, or 3.9% of license revenue, in the three
months ended September 30, 1997. The increase in cost of license revenue in
absolute dollars was primarily attributable to the addition of employees and
related resources to support additional end users and value added integrators
and the amortization of intangibles related to the MDI acquisition.


 Cost of Other Services Revenue

  Cost of other services revenue consists primarily of salaries, benefits and
related overhead costs associated with delivering other services to clients.
Cost of other services revenue increased 99.3% to $2,551,000 in the three months
ended September 30, 1998 from $1,280,000 in the three months ended September 30,
1997. Cost of the services revenue as a percentage of other services revenue
increased to 112.9% in the three months ended September 30, 1998 from 74.6% in
the three months ended September 30, 1997.  The increase in these costs both in
absolute dollars and as a percentage of revenues in the three months ended
September 30, 1998 was due primarily to excess capacity which resulted from the
hiring of additional staff earlier in the 

                                       15
<PAGE>
 
year to support the Company's year 2000 renovation and RQE services. Demand for
these services during the third quarter of 1998 was less than expected.

OPERATING EXPENSES

 Sales and Marketing

  Sales and marketing expenses consist primarily of salaries, commissions and
related overhead costs for sales and marketing personnel; sales referral fees to
third parties; advertising programs; and other promotional activities. Sales and
marketing expenses increased 81.2% to $3,980,000 in the three months ended
September 30, 1998 from $2,197,000 in the three months ended September 30, 1997.
As a percentage of total revenue, sales and marketing expenses increased to
75.2% in the three months ended September 30, 1998 from 25.4% in the three
months ended September 30, 1997. The increase in expenses in absolute dollars
and as a percentage of revenue was primarily attributable to increased staffing,
commissions, including an increase in sales referral fees to third parties, and
promotional activities in conjunction with the Company's year 2000 software
products and services in 1998.


 Research and Development

  Research and development expenses consist primarily of salaries, benefits and
related overhead costs for engineering and technical personnel and outside
engineering consulting services associated with developing new products and
enhancing existing products. Research and development expenses increased 8.9% to
$2,150,000 in the three months ended September 30, 1998 from $1,975,000 in the
three months ended September 30, 1997. As a percentage of total revenue,
research and development expenses increased to 40.6% in the three months ended
September 30, 1998 from 22.8% in the three months ended September 30, 1997.   In
the future, the Company's research and development efforts will primarily be
related to developing technologies to support its service offerings.


 General and Administrative

  General and administrative expenses consist primarily of salaries and related
costs for the finance and accounting, human resources, legal services,
information systems and other administrative departments of the Company, as well
as legal and accounting expenses and the amortization of intangible assets
associated with the Vista acquisition. General and administrative expenses
increased 182.0% to $2,969,000 in the three months ended September 30, 1998 from
$1,053,000 in the three months ended September 30, 1997. As a percentage of
total revenue, general and administrative expenses increased to 56.1% in the
three months ended September 30, 1998 from 12.2% in the three months ended
September 30, 1997. The increase in general and administrative expenses in
absolute dollars was primarily due to the write-down of a customer receivable
balance, an increase in the Company's allowance for doubtful accounts
receivable, additions to the Company's administrative staff to support growth,
higher professional fees and increases in other general corporate expenses as
well as increased costs associated with being a publicly traded company.


 Impairment of Long-Lived Assets

     The Company periodically assesses whether any events or changes in
circumstances have occurred that would indicate that the carrying amount of a
long-lived asset might not be recoverable.  When such an event or change in
circumstance occurs, the Company evaluates whether the carrying amount of such
asset is recoverable by comparing the net book value of the asset to estimated
future undiscounted cash flows, excluding interest charges, attributable to such
asset.  If it is determined that the carrying amount is not recoverable, the
Company recognizes an impairment loss equal to the excess of the carrying amount
of the asset over the estimated fair value of such asset.

     Due to lower than anticipated revenue and losses in excess of expectations
during the quarter ended September 30, 1998, the Company adopted a plan to stop
development of all existing and in-process products originally acquired from MDI
in December 1997, including all Vantage YR2000 renovation and testing software
tools and the generic mass change product. Substantially all direct sales
efforts relating to existing Vantage YR2000 products was also stopped. In
connection with these actions, the Company also undertook a restructuring of its
operations (Note 5) which included the closure of the Company's research and
development facilities in Cincinnati, Ohio and Lisle, IL. and the termination
of substantially all the employees at these facilities. As a result of these
events, management concluded that an assessment of the recoverability of
intangible assets recorded in connection with the acquisition of MDI in December
1997 was required at September 30, 1998. The Company determined that its
property and equipment at these locations was not subject to impairment as
substantially all such assets were scheduled to be redeployed within the
Company.

                                       16
<PAGE>
 
     In connection with the assessment, management prepared forecasts of the
expected future cash flows related to these intangible assets on an undiscounted
basis and without interest charges.  Due to the fact that product development
efforts had been stopped, the Company concluded that the existing technology
acquired as part of the MDI acquisition would only be used in existing Vantage
YR2000 products.  As a result of this analysis, management determined that the
estimated undiscounted net cash flows to be generated by acquired technology
recorded as part of the MDI acquisition were less than the asset's net book
value as of September 30, 1998.  Accordingly, the acquired technology was
written-down to $289,000, its estimated fair value, using a discounted cash flow
model.  With regard to intangible assets relating to assembled workforce and
goodwill acquired from MDI, management concluded that the net book value of
these amounts could no longer be supported due to the termination of 
substantially all former MDI employees and the shift of the Company's strategy
away from MDI-related products. Accordingly, the Company recorded a non-
recurring impairment charge totaling $4,294,000 during the quarter ended
September 30, 1998.

Management's estimates of forecasted cash flows required an evaluation of
various risks and uncertainties.  Although management has made its best estimate
of these factors based on current conditions and expected trends and events, it
is reasonably possible that changes could occur in the near term which could
adversely affect management's estimates of forecasted cash flows.  If such
changes occur, asset impairment write-downs could be required in the future and
such write-downs could be material to the Company's financial statements.

 Restructuring Charge
 
  In September 1998, the Company announced and recorded a non-recurring charge
of $3,372,000 consisting in part of severance payments associated with the
termination of approximately 33% of the Company's employees (89 employees).  At
September 30, 1998, all 89 employees had been terminated with no further
terminations remaining under the restructuring.  In addition, a significant
portion of the restructuring charge related to the closure of two research and
development centers and a reduction of occupied space at the Company's
headquarters in Billerica, MA, consisting primarily of accrual of future lease
payments and other related costs, net of estimated sublease income. Payments
related to terminated employees are expected to be completed by December 1998
for 82 employees and September 1999 for the remaining 7 employees. Payments
related to the closure of facilities and reduction of occupied space are
expected to be completed by June 2003. The Company has estimated that the
restructuring will result in a reduction of approximately $1,900,000 in salary
and related costs and $250,000 in lease related costs on a quarterly basis
beginning in the fourth quarter of 1998.
 
The amounts accrued to, charged against and other adjustments made to the
restructuring accrual during the third quarter of 1998 and the composition of
the remaining balance at September 30, 1998 was as follows:

<TABLE>
<CAPTION>
 
 
                                                       Balance     Q3 1998  Q3 1998     Other         Balance
                                                    June 30, 1998  Accrual  Charges  Adjustments  September 30, 1998
                                                   --------------  -------  -------  -----------  -------------------
<S>                                                <C>             <C>      <C>      <C>          <C>
(in thousands)
 
Provision for severance and benefit payments to
terminated employees.............................      $421        $1,909    $(115)     $ --         $2,215
Provisions related to closure of facilities and
 reduction of occupied space.....................       327         1,463     (132)      (61)         1,597
Other............................................       124            --      (62)      (32)            30
                                                       ----        ------    -----      ----         ------
 Total...........................................      $872        $3,372    $(309)     $(93)        $3,842
                                                       ====        ======    =====      ====         ======
</TABLE>
 
     As of September 30, 1998, $2,902,000 of the remaining balance of the
restructuring accrual is expected to be paid by September 30, 1999 with the
remaining balance of $940,000 being paid thereafter.

INTEREST INCOME, NET

  Interest income, net, is primarily composed of interest earned on cash
balances and interest expense on debt including capital lease obligations. The
Company had interest income, net, of $95,000 in the three months ended September
30, 1998 compared to interest expense, net, of $462,000 in the three months
ended September 30, 1997. This change in interest income, net, was primarily
attributable to decreased interest income from decreased cash balances.

                                       17
<PAGE>
 
PROVISION (BENEFIT) FOR INCOME TAXES

  The Company's income tax provision (benefit) was $-- and $(68,000) in the
three months ended September 30, 1998 and 1997, respectively. The benefit in
1997 reflects a decrease in taxable income for the three months ended September
30, 1997 offset, in part, by international tax obligations.


MINORITY INTEREST IN MAJORITY-OWNED SUBSIDIARY

  The minority interest in majority-owned subsidiary represents the equity
interest in the operating results of Persist held by stockholders of Persist
other than the Company. The minority interest in majority-owned subsidiary
increased to a net income of $8,000 in the three months ended September 30, 1998
from a loss of $6,000 in the three months ended September 30, 1997. This change
was the result of the increased profitability of Persist from July 1, 1998 to
July 20, 1998; the date the Company divested its interest in Persist by
transferring shares back to Persist.

NINE MONTHS ENDED SEPTEMBER 30, 1998 COMPARED TO NINE MONTHS ENDED SEPTEMBER 30,
1997

Revenue

  Total revenue increased 1.2% to $25,809,000 in the nine months ended September
30, 1998 from $25,493,000 in the nine months ended September 30, 1997. This
increase in revenue was primarily due to an increase in year 2000 renovation and
RQE services performed by the Company partially offset by decreased licensing of
the Company's year 2000 Auto Enhancer/2000 software and Vantage YR2000 products.
During the nine months ended September 30, 1998, one customer generated 11.9% of
total revenue. International revenue increased 70.3% to $3,579,000 in the nine
months ended September 30, 1998 from $2,101,000 in the nine months ended
September 30, 1997. In July 1998, the Company divested 100% of its equity
interest in its majority-owned Spanish subsidiary, Persist, S. A. ("Persist"),
to Persist for cash proceeds totaling $470,000. Accordingly, the results of
operations of Persist subsequent to the date of disposition have been excluded
from the Company's consolidated results for the quarter ended September 30,
1998. Persist generated 34.4% of the Company's international revenue in the nine
months ended September 30, 1998 while sales to value added integrators and end
users accounted for the remaining 65.6%. Persist generated substantially all of
the Company's international revenue in the nine months ended September 30, 1997.
For the nine months ended September 30, 1998, the Company recorded $872,000 and
$459,000 of related party revenue from one customer which is a shareholder of
Persist and one customer which is a wholly-owned subsidiary of APU,
respectively.


 Outsourcing Services

  Outsourcing services revenue decreased 10.0% to $7,685,000 in the nine months
ended September 30, 1998 from $8,542,000 in the nine months ended September 30,
1997. The decrease in outsourcing services revenue in absolute dollars was
primarily attributable to the divestiture of Persist, the termination of one
significant outsourcing contract and by the recognition of lesser amounts of
revenue under the percentage-of-completion method on existing outsourcing
contracts that were in their later phases during 1998. As a percentage of total
revenue, outsourcing services revenue decreased to 29.8% in the nine months
ended September 30, 1998 from 33.5% in the nine months ended September 30, 1997.
The decrease in outsourcing revenue as a percentage of total revenue reflects
the increased contribution of renovation and RQE services revenue to total
revenue during the nine months ended September 30, 1998. Outsourcing services
remain a major component of the solutions offered by the Company, and the
Company anticipates that such services will continue to account for a
significant portion of total revenue for the foreseeable future. In July 1998,
the Company announced its software maintenance outsourcing offerings, "Software
Asset Maintenance for Software Providers" and "Software Asset Maintenance for
Information Systems", which are outsourcing solutions designed specifically for
the manufacturers of system software and software products and for information
technology departments that maintain application software, respectively.

 License

  License revenue was $8,602,000 in the nine months ended September 30, 1998, or
33.3% of total revenue, compared to $12,744,000, or 50.0% of total revenue, in
the nine months ended September 30, 1997. The decrease in license revenue for
the nine months ended September 30, 1998 was primarily attributable to the
decreased delivery of licensed software to end users and to decreased license
fees from value added integrators. In the future, the Company does not expect
any sustained increases to license revenue.

                                       18
<PAGE>
 
 Other Services

  Other services revenue increased 126.3% to $9,522,000 in the nine months ended
September 30, 1998 from $4,207,000 in the nine months ended September 30, 1997.
As a percentage of total revenue, other services revenue was 36.9% in the nine
months ended September 30, 1998 and 16.5% in the nine months ended September 30,
1997. The increase in other services revenue in absolute dollars was primarily
attributable to an increase in year 2000 services performed by Company personnel
using Company's year 2000 products, offset by a decrease in consulting and 
maintenance revenues.



COST OF REVENUE

 Cost of Outsourcing Services Revenue

  Cost of outsourcing services revenue consists primarily of salaries, benefits
and overhead costs associated with delivering outsourcing services to clients.
The cost of outsourcing services revenue decreased 14.8% to $5,833,000 in the
nine months ended September 30, 1998 from $6,847,000 for the nine months ended
September 30, 1997. Cost of outsourcing services revenue as a percentage of
outsourcing services revenue decreased to 75.9% in the nine months ended
September 30, 1998 and from 80.2% in the nine months ended September 30, 1997.
The decrease in costs of outsourcing services revenue in absolute dollars was
due primarily to the termination of one outsourcing contract.


 Cost of License Revenue

  Cost of license revenue consists primarily of salaries, benefits, amortization
expense of intangibles related to the MDI acquisition and related overhead costs
associated with license-related materials packaging and freight. Cost of license
revenue was $1,520,000 in the nine months ended September 30, 1998, or 17.7% of
license revenue, compared to $430,000, or 3.4% of license revenue, in the nine
months ended September 30, 1997. The increase in cost of license revenue in
absolute dollars was primarily attributable to the addition of employees and
related resources to support additional end users and value added integrators
and the amortization of intangibles related to the MDI acquisition.


 Cost of Other Services Revenue

  Cost of other services revenue consists primarily of salaries, benefits and
related overhead costs associated with delivering other services to clients.
Cost of other services revenue increased 111.8% to $7,636,000 in the nine months
ended September 30, 1998 from $3,605,000 in the nine months ended September 30,
1997. Cost of the services revenue as a percentage of other services revenue
decreased to 80.2% in the nine months ended September 30, 1997 from 85.7% in the
nine months ended September 30, 1997. The increase in these costs both in
absolute dollars and as a percentage of revenues in the nine months ended
September 30, 1998 was due primarily to excess capacity which resulted from the
hiring of additional staff earlier in the year to support the Company's year
2000 renovation and RQE services.   Demand for these services during the nine 
months ended September 30, 1998 was less than expected.

OPERATING EXPENSES

 Sales and Marketing

  Sales and marketing expenses consist primarily of salaries, commissions and
related overhead costs for sales and marketing personnel; sales referral fees to
third parties; advertising programs; and other promotional activities. Sales and
marketing expenses increased 84.4% to $10,355,000 in the nine months ended
September 30, 1998 from $5,615,000 in the nine months ended September 30, 1997.
As a percentage of total revenue, sales and marketing expenses increased to
40.1% in the nine months ended September 30, 1998 from 22.0% in the three months
ended September 30, 1997. The increase in expenses in absolute dollars and as a
percentage of revenue was primarily attributable to increased staffing,
commissions, including an increase in sales referral fees to third parties, and
promotional activities in conjunction with the Company's year 2000 software
products and services in 1998.

 Research and Development

  Research and development expenses consist primarily of salaries, benefits and
related overhead costs for engineering and technical personnel and outside
engineering consulting services associated with developing new products and
enhancing existing 

                                       19
<PAGE>
 
products. Research and development expenses increased 29.0% to $7,195,000 in the
nine months ended September 30, 1998 from $5,578,000 in the nine months ended
September 30, 1997. As percentage of total revenue, research and development
expenses increased to 27.9% in nine months ended September 30, 1998 from 21.9%
in the nine months ended September 30, 1997. The increase in research and
development expenses in absolute dollars was primarily attributable to increased
staffing for the product development efforts for the Company's year 2000
products and services and mass change technologies, including an increase in
staffing effected through new hires, internal transfers and the acquisition of
MDI. In the future, the Company's research and development efforts will
primarily be related to developing technologies to support its service
offerings.


General and Administrative

  General and administrative expenses consist primarily of salaries and related
costs for the finance and accounting, human resources, legal services,
information systems and other administrative departments of the Company, as well
as legal and accounting expenses and the amortization of intangible assets
associated with Vista acquisition. General and administrative expenses increased
110.9% to $6,017,000 in the nine months ended September 30, 1998 from $2,853,000
in the nine months ended September 30, 1997. As a percentage of total revenue,
general and administrative expenses increased to 23.3% in the nine months ended
September 30, 1998 from 11.2% in the nine months ended September 30, 1997. The
increase in general and administrative expenses in absolute dollars was
primarily due to the write-down of a customer receivable balance, an increase in
the Company's allowance for doubtful accounts reserve, additions to the
Company's administrative staff to support growth, higher professional fees and
increases in other general corporate expenses as well as increased costs
associated with being a publicly traded company.


  Impairment of Long-Lived Assets

 
     The Company periodically assesses whether any events or changes in
circumstances have occurred that would indicate that the carrying amount of a
long-lived asset might not be recoverable.  When such an event or change in
circumstance occurs, the Company evaluates whether the carrying amount of such
asset is recoverable by comparing the net book value of the asset to estimated
future undiscounted cash flows, excluding interest charges, attributable to such
asset.  If it is determined that the carrying amount is not recoverable, the
Company recognizes an impairment loss equal to the excess of the carrying amount
of the asset over the estimated fair value of such asset.

     Due to lower than anticipated revenue and losses in excess of expectations
during the quarter ended September 30, 1998, the Company adopted a plan to stop
development of all existing and in-process products originally acquired from MDI
in December 1997, including all Vantage YR2000 renovation and testing software
tools and the generic mass change product. Substantially all direct sales
efforts relating to existing Vantage YR2000 products was also stopped. In
connection with these actions, the Company also undertook a restructuring of its
operations (Note 5) which included the closure of the Company's research and
development facilities in Cincinnati, Ohio and Lisle, IL. and the termination
of substantially all the employees at these facilities. As a result of these
events, management concluded that an assessment of the recoverability of
intangible assets recorded in connection with the acquisition of MDI in December
1997 was required at September 30, 1998. The Company determined that its
property and equipment at these locations was not subject to impairment as
substantially all such assets were scheduled to be redeployed within the
Company.

     In connection with the assessment, management prepared forecasts of the
expected future cash flows related to these intangible assets on an undiscounted
basis and without interest charges.  Due to the fact that product development
efforts had been stopped, the Company concluded that the existing technology
acquired as part of the MDI acquisition would only be used in existing Vantage
YR2000 products.  As a result of this analysis, management determined that the
estimated undiscounted net cash flows to be generated by acquired technology
recorded as part of the MDI acquisition were less than the asset's net book
value as of September 30, 1998.  Accordingly, the acquired technology was
written-down to $289,000, its estimated fair value, using a discounted cash flow
model.  With regard to intangible assets relating to assembled workforce and
goodwill acquired from MDI, management concluded that the net book value of
these amounts could no longer be supported due to the termination of 
substantially all former MDI employees and the shift of the Company's strategy
away from MDI-related products. Accordingly, the Company recorded a non-
recurring impairment charge totaling $4,294,000 during the nine months ended
September 30, 1998.

Management's estimates of forecasted cash flows required an evaluation of
various risks and uncertainties.  Although management has made its best estimate
of these factors based on current conditions and expected trends and events, it
is reasonably possible that changes could occur in the near term which could
adversely affect management's estimates of forecasted cash flows.  If such
changes occur, asset impairment write-downs could be required in the future and
such write-downs could be material to the Company's financial statements.

                                       20
<PAGE>
 
 Restructuring Charges
 
  In September 1998, the Company announced and recorded a non-recurring charge
of $3,372,000 consisting in part of severance payments associated with the
termination of approximately 33% of the Company's employees (89 employees).  At
September 30, 1998, all 89 employees had been terminated with no further
terminations remaining under the restructuring.  In addition, a significant
portion of the restructuring charge related to the closure of two research and
development centers and a reduction of occupied space at the Company's
headquarters in Billerica, MA, consisting primarily of accrual of future lease
payments and other related costs, net of estimated sublease income. Payments
related to terminated employees are expected to be completed by December 1998
for 82 employees and September 1999 for the remaining 7 employees. Payments
related to the closure of facilities and reduction of occupied space are
expected to be completed by June 2003. The Company has estimated that the
restructuring will result in a reduction of approximately $1,900,000 in salary
and related costs and $250,000 in lease related costs on a quarterly basis
beginning in the fourth quarter of 1998.

  In March 1998, the Company announced its intentions for a strategic
restructuring to refocus the Company's investments and to reduce its operating
expenses. The Company effected this restructuring, which was finalized in the
second quarter of 1998, and recorded a non-recurring charge of $1,439,000
consisting in part of severance payments associated with the termination of
approximately 12% of the Company's employees in April 1998 (48 employees). At
June 30, 1998, all 48 employees had been terminated with no further terminations
remaining under the restructuring. In addition, a significant portion of the
restructuring charge related to the closure of two research and development and
outsourcing centers, consisting primarily of accrual of future lease payments
and other related costs, net of estimated sublease income, and support costs for
a discontinued product, in excess of related services revenue. Payments related
to terminated employees were completed in June 1998 for 46 employees and are
expected to be completed by September 1999 for the remaining 2 employees.
Payments related to the closure and reduction of facilities are expected to be
complete by April 2003. The restructuring resulted in a reduction of
approximately $960,000 in salary and related costs and $90,000 in facility
related costs on a quarterly basis beginning in second quarter of 1998.
 
The amounts accrued to, charged against and other adjustments made to the
restructuring accrual during the nine months ended September 30, 1998 and the
composition of the remaining balance at September 30, 1998 was as follows:

<TABLE>
<CAPTION>
 
 
                                                     Balance                            Other          Balance
                                                December 31, 1997  Accrual  Charges  Adjustments  September 30, 1998
                                                -----------------  -------  -------  -----------  ------------------
<S>                                             <C>                <C>      <C>      <C>          <C>
(in thousands)
 
Provision for severance and benefit payments to
terminated employees.............................      $ --         $2,856   $(641)     $ --           $2,215
Provisions related to closure of facilities and
 reduction of occupied space.....................        --          1,790    (132)      (61)           1,597
Other............................................        --            165    (103)      (32)              30
                                                       ----         ------   -----      ----           ------
 Total...........................................      $ --         $4,811   $(876)     $(93)          $3,842
                                                       ====         ======   =====      ====           ======
</TABLE>
 
     As of September 30, 1998, $2,902,000 of the remaining balance of the
restructuring accrual is expected to be paid by September 30, 1999 with the
remaining balance of $940,000 being paid thereafter.


INTEREST INCOME, NET

  Interest income, net, is primarily composed of interest income earned on cash
balances and interest expense on debt including capital lease obligations. The
Company had interest income, net ,of $440,000 in the nine months ended September
30, 1998 compared to interest income, net, of $482,000 in the nine months ended
September 30, 1997. This change in interest income, net, was primarily
attributable to decreased interest income from decreased cash balances.


PROVISION FOR INCOME TAXES

  The Company's income tax provision was $25,000 and $104,000 in the nine months
ended September 30, 1998 and 1997, respectively. The provision in the nine
months ended September 30, 1998 reflects international tax obligations.

                                       21
<PAGE>
 
MINORITY INTEREST IN MAJORITY-OWNED SUBSIDIARY

  The minority interest in majority-owned subsidiary represents the equity
interest in the operating results of Persist held by stockholders of Persist
other than the Company. The minority interest in majority-owned subsidiary
decreased to a loss of $4,000 in the nine months ended September 30, 1998 from
income of $15,000 in the nine months ended September 30, 1997. This change was
the result of the decreased profitability of Persist from January 1, 1998 to
July 20, 1998; the date the Company divested its interest in Persist by
transferring shares back to Persist.



LIQUIDITY AND CAPITAL RESOURCES

  Historically, the Company has financed its operations and capital expenditures
primarily with the proceeds from sales of the Company's convertible preferred
stock and common stock, borrowings and advance payments for services from
clients. The Company's cash balances and short term investments were $6,504,000
and $14,340,000 at September 30, 1998 and December 31, 1997, respectively. The
Company's working capital was $5,459,000 and $20,931,000 at September 30, 1998
and December 31, 1997, respectively. The Company's operating activities used
cash of $5,076,000 during the nine months ended September 30, 1998 and provided
cash of $260,000 during the nine months ended September 30, 1997.  The Company's
use of cash during the nine months ended September 30, 1998 was primarily caused
by net loss of $21,329,000 offset by depreciation and amortization expense of
$2,444,000, an impairment of intangible assets of $4,294,000, a decrease in
accounts receivable of $6,837,000, and an increase in other accrued expenses and
other current liabilities of $2,575,000.

  The Company used cash of $3,300,000 and $1,534,000 for investing activities
during the nine months ended September 30, 1998 and 1997, respectively.
Investing activities in the nine months ended September 30, 1998 consisted
principally of the purchases of property and equipment, most notably computer
equipment and software, furniture and fixtures and leasehold improvements
related to the Company's relocations of its headquarters and regional offices.
Although the Company has no significant commitments for capital expenditures in
the remainder of 1998, the Company expects to continue to purchase property and
equipment to further maintain its infrastructure as required.

  The Company's financing activities provided cash of $1,051,000 and $40,224,000
during the nine months ended September 30, 1998 and 1997, respectively.
Financing activities in the nine months ended September 30, 1998 and 1997
primarily reflect proceeds from the exercise of stock options and the Company's
initial public offering, respectively.

  In September 1996, the Company obtained a revolving line of credit facility
from a bank which bears interest at the bank's prime rate plus 0.5% (8.75% at
September 30, 1998).  The line of credit expired and all borrowings were payable
in full on September 30, 1998.  At September 30, 1998, there were no borrowings
outstanding under the line of credit.  In addition to this line of credit, the
Company also entered into an equipment financing agreement in September 1996.
Under this agreement, the bank agreed to provide up to $1,500,000 for the
purchase of certain equipment (as defined by the agreement) through September
30, 1997. Ratable principal and interest payments are payable during the period
July 1, 1997 through June 1, 2000, and bear interest at the bank's prime rate
plus 1% (9.25% at September 30, 1998).  At September 30,1998, both of these
agreements require the Company to comply with certain financial covenants and
are secured by all of the assets of the Company. As of September 30, 1998, the
Company was in violation of such financial covenants and, accordingly, has
classified all borrowings under this credit facility as short-term obligations.
The bank notified the Company in November that the Company was in default  under
its line of credit facility and equipment financing agreement and  requested
that the Company provide cash collateral for the amount of equipment financing
outstanding, and provide cash collateral for a $300,000 standby letter of credit
issued by the bank. There were no borrowings outstanding under the revolving
credit facility and $342,000 was outstanding under the equipment financing
agreement at September 30, 1998.  The Company will provide cash collateral for
all amounts outstanding under the equipment financing agreement and for the
$300,000 letter of credit.  The bank has indicated that it will not renew or
further extend the Company's revolving credit facility.

  To date, the Company has not invested in derivative securities or any other
financial instruments that involve a high level of complexity or risk. Excess
cash has been, and the Company contemplates that it will continue to be,
invested in interest-bearing, investment grade securities.

  The Company experienced net losses of $67,490,000 and $21,329,000 in the year
ended December 31, 1997 and the nine months ended September 30, 1998,
respectively, and anticipates a net loss of $2,000,000 to $4,500,000 in the
fourth quarter of 1998, which raise doubt about its ability to continue as a
going concern after 1998.  The Company anticipates that the net proceeds from
the sale of common stock in its July 1997 initial public offering, together with
cash generated from operations and existing cash balances will be adequate to
finance its operations through 1998. Thereafter, the Company's cash flow
requirements will depend on the results of future operations.

                                       22
<PAGE>
 
There can be no assurance that these expectations will be realized. After 1998,
the Company's continued existence is dependent upon its ability to achieve a
cash flow breakeven position and/or to obtain additional sources of financing.
The Company implemented a restructuring plan on December 2, 1998 to further
reduce its expenses which included the elimination of approximately 45 employees
and related facilities costs. It is anticipated that this plan will result in a
charge to earnings in the fourth quarter of 1998 of approximately $1.2 million.
The Company is also exploring strategic initiatives to raise additional funds.
There can be no assurance that the Company will achieve a cash flow breakeven
position or that it will be able to raise additional funds through bank
borrowings and/or debt and/or equity financings. Reductions in expenses or the
sale of assets may not be adequate to bring the Company to a cash breakeven
position. In addition, there can be no assurance that such actions will not have
an adverse effect on the Company's ability to generate revenue or successfully
implement any strategic alternatives under consideration. Failure to establish a
cash flow breakeven position or raise additional funds through bank borrowings
and/or equity and/or debt financings would advesely impact the Company's ability
to continue as a going concern after 1998.

FOREIGN CURRENCY

  Assets and liabilities of the Company's subsidiaries are translated into
United States dollars at exchange rates in effect at the balance sheet date.
Income and expense items are translated at average exchange rates for the
period. Accumulated net translation adjustments are included in stockholders'
equity.


INFLATION

  To date, inflation has not had a material impact on the Company's results of
operations.


RECENTLY ISSUED ACCOUNTING STANDARDS

  In October 1997, the Accounting Standards Executive Committee ("AcSEC") of the
AICPA issued SOP 97-2, "Software Revenue Recognition."  SOP 97-2 provides
guidance on the timing and amount of revenue recognition when licensing,
selling, leasing or otherwise marketing computer software and became effective
for transactions entered into by the Company beginning on January 1, 1998.
Subsequently, in March 1998, AcSEC issued SOP 98-4, "Deferral of the Effective
Date of a Provision of SOP 97-2, Software Revenue Recognition."  SOP 98-4
deferred certain provisions of SOP 97-2 pertaining to its requirements for what
constitutes vendor-specific objective evidence ("VSOE") of the fair value of
individual elements of a multiple-element arrangement for a one-year period.  At
the same time, AcSEC immediately began a project to further clarify the
requirements surrounding VSOE.  This project resulted in SOP 98-9, "Modification
of SOP 97-2, `Software Revenue Recognition,' with Respect to Certain
Transactions," which was cleared by the FASB in November 1998.  In SOP 98-9,
AcSEC decided to retain the limitations on what is considered VSOE of fair value
in a software arrangement.  Accordingly, the limitations on VSOE of fair value
that were deferred by SOP 98-4 will be effective for transactions that are
entered into in fiscal years beginning after March 15, 1999.  However, SOP 98-9
provides a limited exception to the full deferral of revenue that the provisions
of SOP 97-2 may require for arrangements in which the entity has a contracted
price for the entire arrangement and VSOE of the fair value of each undelivered
element exists.  Formal issuance of SOP 98-9 is expected in December 1998.
Based upon its reading and interpretation of SOP 97-2, SOP 98-4 and SOP 98-9,
the Company believes that its current revenue recognition policies and practices
are materially consistent with the provisions of the guidance set forth in these
pronouncements.  Accordingly, the adoption of this guidance has not materially
affected its financial position or results of operations and is not expected to
have a material impact in future periods.
 
  In February 1998, AcSEC issued SOP 98-1, "Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use". SOP 98-1 establishes
the accounting for costs of software products developed or purchased for
internal use, including when such costs should be capitalized. The Company does
not expect SOP 98-1, which is effective for the Company beginning January 1,
1999, to have a significant impact on the Company's financial condition or
results of operations.

  In June 1997, the FASB issued SFAS No. 131, "Disclosures about Segments of an
Enterprise and Related Information" which supersedes SFAS No. 14. This
statement changes the way that public business enterprises report segment
information, including financial and descriptive information about their
selected segment information. Operating segments are defined as revenue-
producing components of the enterprise which are generally used internally for
evaluating segment performance. SFAS No. 131 will be effective for the Company's
fiscal year ending December 31, 1998 and will not affect the Company's financial
position or results of operations.

     In June 1998, the FASB issued SFAS No. 133, "Accounting for Derivative
Instruments and Hedging Activities."  The new standard establishes accounting
and reporting standards for derivative instruments, including certain derivative
instruments embedded in other contracts, (collectively referred to as
derivatives) and for hedging activities.  SFAS No. 133 is effective for all
fiscal quarters of fiscal years beginning after June 15, 1999.  The Company does
not invest in derivative instruments or engage in

                                       23
<PAGE>
 
hedging activities. As a result, SFAS No. 133 is not expected to have a material
affect on its financial position or results of operations.

FACTORS THAT MAY AFFECT FUTURE RESULTS

  From time to time, information provided by the Company or statements made by
its employees may contain "forward-looking" statements, as that term is
defined in the Private Securities Litigation Reform Act of 1995. For this
purpose, any statements contained herein that are not statements of historical
fact may be deemed to be forward-looking statements. Without limiting the
foregoing, the words "believes", "anticipates", "plans", "expects", and
similar expressions are intended to identify forward-looking statements.

  This Quarterly Report on Form 10-Q may contain forward looking statements
which involve risks and uncertainties. The Company's actual results may differ
materially from the results discussed in such statements. Certain factors that
could cause such a difference include, without limitation, the risks
specifically described in the Company's Annual Report on Form 10-K for the year
ended December 31, 1997 and other public documents, filed by the Company with
the Securities and Exchange Commission (the "Commission"), which factors are
incorporated herein by reference, and other factors such as the Company's
limited operating history, the dependence on the year 2000 market, the need to
develop additional products and services, the concentration of clients and
credit risk, the management of growth and increases in expenditures in sales and
marketing, research and development and finance and administration, the
dependence upon third-party channels and potential for channel conflict, the
impact of competitive products and services and pricing, competition for
qualified technical personnel, the offering of fixed-price, fixed time-frame
contracts rather than contracts on a time and materials basis, the potential for
contract liability related to the provision of year 2000 and other products and
services, the potential for software errors or bugs in the Company's products,
the operating difficulties and expenditures associated with acquisitions
including the Company's MDI acquisition, limited protection of proprietary
rights, dependence on third party technology, rapid technological change, risks
associated with international operations and dependence on Indian offshore
software development centers, the impact of the government regulation of
immigration, dependence on government contracts, product or services demand and
market acceptance risks, product development and services capacity,
commercialization and technological difficulties, capacity and supply
constraints or difficulties and the effect of general business or economic
conditions.

  In addition, actual results may differ materially from the results in forward
looking statements that may be contained in this Quarterly Report on Form 10-Q
as a result of the following factors:

    Failure to Achieve Cash Flow Breakeven/Strategic Initiatives. The Company's
    --------------------------------------------------------------             
ability to achieve a cash flow breakeven position after 1998 will be critical
for achieving financial stability. Reductions in expenses or the sale of assets
may not be sufficient to bring the Company to a cash breakeven position. In
addition, there can be no assurance that any actions taken to sell assets or
reduce expenses will not have a material adverse impact on the Company's ability
to generate revenue or successfully implement any strategic alternatives under
consideration. Failure to establish a cash flow break even position or raise 
additional funds through bank borrowings and/or equity and/or debt financings 
would adversely impact the Company's ability to continue as a going concern 
after 1998.

  Financing. There can be no assurance that the Company will be able to
  ---------                                                            
successfully negotiate a borrowing arrangement with a bank or obtain additional
funds through equity and/or debt financings. Failure to establish a cash flow
break even position or raise additional funds through bank borrowings and/or
equity and/or debt financings would adversely impact the Company's ability to
continue as a going concern after 1998.

  National Market Listing. The Nasdaq Stock Market, Inc. has several
  -----------------------                                           
requirements for listing on the Nasdaq National Market or the Nasdaq SmallCap
Market. The Company has received correspondence from the Nasdaq National Market 
regarding the Company's inability to meet certain continued listing criteria for
the Nasdaq National Market. The Company has requested and received a hearing to
review its continued listing on the Nasdaq National Market. Failure to meet
listing requirements may result in the Company being moved from the National
Market to the SmallCap Market or being de-listed. There can be no assurance that
the Company will not be de-listed.

  Revenue Risk. The Company's strategy to stem revenue decline is based on the
  ------------                                                                
transition from selling Year 2000  products and services  to software
maintenance outsourcing services.  The sale of software maintenance outsourcing
services typically involves a long sales cycle and competition from other
vendors that have substantially greater financial, marketing and personnel
resources than the Company. There can be no assurance that these new services
will be accepted by customers and will generate revenues sufficient to offset
continued decline in revenues from Year 2000 business.

  Litigation Risk. The future course of the  class action claims against the
  ---------------                                                           
Company described in footnote 2 to the unaudited consolidated financial
statements above could have a material adverse impact on the Company's financial
condition and results of operations in the period in which the litigation is
resolved.

  Fluctuations in Quarterly Performance.  The Company's quarterly revenue,
  -------------------------------------                                   
expenses and operating results have varied significantly in the past and are
likely to vary significantly from quarter to quarter in the future. A
significant portion of the Company's revenue in any quarter is typically derived
from a limited number of large client transactions. In addition, the sales cycle
associated with these transactions is lengthy and is subject to a number of
uncertainties, including clients' budgetary constraints, the timing of clients'
budget cycles and clients' internal approval processes. Accordingly, the timing
of significant transactions is unpredictable and, as a result, the Company's
revenue and results of operations for any particular period are subject

                                       24
<PAGE>
 
to significant variability. The complexity of certain projects and the
requirements of generally accepted accounting principles can also result in a
deferral of revenue recognition, in whole or in part, on a particular contract
during a quarter, even though the contract has been executed or payment has
actually been received by the Company. Quarterly fluctuations may also result
from other factors such as new product and service introductions or
announcements of new products and services by the Company's competitors, changes
in the Company's or its competitors' pricing policies, changes in the mix of
distribution channels through which the Company's products and services are
sold, the timing and nature of sales and marketing expenses, changes in
operating expenses, the financial stability of major clients, changes in the
demand for software maintenance products and services, foreign currency exchange
rates and general economic conditions.


YEAR 2000 ISSUE

  The Year 2000 issue relates to computer programs and systems that recognize
dates using two-digit year data rather than four-digit year data.  As a result,
such programs and systems may fail or provide incorrect information when using
dates after December 31, 1999.  If the Year 2000 issue were to disrupt the
Company's internal information technology systems, or the information technology
systems of entities with whom the Company has significant commercial
relationships, the Company's business and financial condition could be
materially adversely affected.

  The Year 2000 issue is relevant to three areas of the Company's business:  (1)
the Company's products and services, (2) the Company's internal computer systems
and (3) the computer systems of significant suppliers or customers of the
Company. Each such area is addressed below.

  1.  The Company's Products. In some cases, the Company warrants to its clients
      that its software will be year 2000 compliant generally subject to certain
      limitations or conditions. The Company also provides solutions consisting
      of products and services to address the year 2000 problem involving key
      aspects of a client's computer systems. A failure in a client's system or
      failure of the Company's software to be year 2000 compliant would result
      in substantial damages and therefore have a material adverse effect on the
      Company's business, financial condition and results of operations. The
      Company does not intend to adopt a formal Year 2000 compliance program for
      its existing products, however, it will use commercially reasonable
      efforts to make new products Year 2000 compliant. However, there can be 
      no assurance that these future efforts will be successful.

2.    Internal Systems.  The Company's internal computer programs and operating
      systems relate to certain segments of the Company's business, including
      customer database management, marketing, order processing, order
      fulfillment, inventory management, customer service, accounting and
      financial reporting. These programs and systems consist primarily of:

      .  Business Systems. These systems automate and manage business functions
         such as customer database management, marketing, order-taking and 
         order-processing, inventory management, customer service, accounting
         and financial reporting,

      .  Personal Computers and Networks. These systems are used for word
         processing, document management and other similar administrative
         functions, and

      .  Telecommunications Systems. These systems provide telephone, voicemail,
         e-mail, Internet and intranet connectivity, and enable the Company to
         manage overall internal and external communications.

      The Company's business systems are licensed from an outside vendor and the
      Company expects that these business systems installed in 1997 will be Year
      2000 compliant through upgrades and maintenance. Other internal systems
      consist of widely available office applications and application suites for
      word-processing, voicemail and other office-related functions. The Company
      maintains current versions of all such key applications and all are, or
      are expected to be, Year 2000 compliant. Accordingly, the Company does not
      intend to adopt a formal Year 2000 compliance program for these systems.
      However, there can be no assurance that these internal systems will be
      Year 2000 compliant.

3.  Third-Party Systems.  The computer programs and operating systems used by
    entities with whom the Company has commercial relationships pose potential
    problems relating to the Year 2000 issue, which may affect the Company's
    operations in a variety of ways. These risks are more difficult to assess
    than those posed by internal programs and systems, and the Company has not
    yet begun the process of formulating a plan for assessing them. The Company
    believes that the programs and operating systems used by entities with whom
    it has commercial relationships generally fall into two categories: (A)
    First, the Company relies upon programs and systems used by providers of
    basic services necessary to enable the Company to reach, communicate and
    transact business with its suppliers and customers. Examples of such
    providers include the United States Postal Service, overnight delivery
    services, telephone companies, other utility companies and banks. Services
    provided by such entities affects almost all facets of the Company's
    operations. However, these third-party dependencies are not specific to the
    Company's business, and disruptions in their availability would likely have
    a negative impact on most enterprises within the software and

                                       25
<PAGE>
 
    services industry and on many enterprises outside the software and services
    industry. The Company believes that all of the most reasonably likely worst-
    case scenarios involving disruptions to its operations stemming from the
    Year 2000 issue relate to programs and systems in this first category. (B)
    Second, the Company relies upon third parties for certain software code or
    programs that are embedded in, or work with, its products. The Company
    believes that the functionality of its products would not be materially
    adversely affected by a failure of such third-party software to be Year 2000
    compliant.

There can be no assurance that the Company may not experience unanticipated
expenses or be otherwise adversely impacted by a failure of third-party systems
or software to be Year 2000 compliant.  The most reasonably likely worst-case
scenarios may include: (i) corruption of data contained in the Company's
internal information systems, (ii) hardware failure, and (iii) failure of
infrastructure services provided by utilities and/or government.  The Company
intends to include an evaluation of such scenarios in its plan for assessing the
programs and systems of the entities with whom it has commercial relationships.

The Company expects to complete the formulation of its plan for assessing its
internal programs and systems and the programs and systems of the entities with
whom it has commercial relationships by the end of the first quarter of fiscal
1999 and the identification of related risks and uncertainties by the end of the
second quarter of fiscal 1999.  Once such identification has been completed, the
Company intends to resolve any material risks and uncertainties that are
identified by communicating further with the relevant vendors and providers, by
working internally to identify alternative sourcing and by formulating
contingency plans to deal with such material risks and uncertainties.  To date,
however, the Company has not formulated such a contingency plan.  The Company
expects the resolution of such material risks and uncertainties to be an ongoing
process until all key year 2000 problems are satisfactorily resolved.  The
Company does not currently anticipate that the total cost of any Year 2000
remediation efforts that may be needed will be material.

EURO-CURRENCY ISSUE

  The participating member countries of the European Union have agreed to adopt
the Euro as the common legal currency on January 1, 1999.  On that same date
they will establish the fixed conversion rates between their existing sovereign
currencies and the Euro.  The Company has begun to assess the potential impact
on the Company that may result from the Euro conversion.  At this early state of
its assessment, the Company cannot yet predict the impact of the Euro
conversion.  However, the Company does not expect the Euro conversion to have a
material impact on financial results because the Company does not have a
significant number of transactions within the European market.

ITEM 3.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

  Not applicable.


                         PART II.    OTHER INFORMATION

ITEM 1.   LEGAL PROCEEDINGS

  The Company and certain of its officers and directors have been named as
defendants in purported class action lawsuits filed in the United States
District Court for the District of Massachusetts by Robert Downey on April 1,
1998, by Scott Cohen on April 7, 1998, by Timothy Bonnett on April 9, 1998, by
Peter Lindsay on April 17, 1998, by Harry Teague on April 21, 1998, by Jesse
Wijntjes on April 29, 1998, by H. Vance Johnson and H. Vance Johnson as Trustee
for the I.O.R.D. Profit-Sharing Plan on May 6, 1998, by John B. Howard, M.D. on
May 21, 1998 and by Helen Lee on May 28, 1998 (collectively, the
"complaints"). The Downey complaint alleges a class period of October 22, 1997
to March 27, 1998. The Cohen, Bonnett, Wijntjes and Lee complaints allege a
class period of January 27, 1998 to March 27, 1998. The Lindsay, Teague and
Johnson complaints allege a class period of January 28, 1998 to March 27, 1998.
The Howard complaint alleges a class period of July 3, 1997 to March 27, 1998.
The complaints principally allege that the defendants violated federal
securities laws by making false and misleading statements and by failing to
disclose material information concerning the Company's December 1997 acquisition
of substantially all of the assets and assumption of certain liabilities of the
Millennium Dynamics, Inc. business from American Premier Underwriters, Inc.,
thereby allegedly causing the value of the Company's common stock to be
artificially inflated during the purported class periods. In addition, the
Howard complaint alleges violation of federal securities laws as a result of the
Company's purported failure to disclose material information in connection with
the Company's initial public offering on July 2, 1997, and also names Montgomery
Securities, Inc., Wessels, Arnold & Henderson, and H.C. Wainwright & Co., Inc.
as defendants. The complaints further allege that certain officers and/or
directors of the Company sold stock in the open market during the class periods
and seek unspecified damages. On or about June 1, 1998, all of the named
plaintiffs and additional purported class members filed a motion for the
appointment of several of those individuals as lead plaintiffs, for approval of
lead and liaison plaintiffs' counsel and for consolidation of the actions. The
Court granted the motion on June 18, 1998. Although the Company believes that it
and the other defendants have meritorious defenses to the claims made in the
complaints and intends to contest the lawsuits vigorously, an

                                       26
<PAGE>
 
adverse resolution of the lawsuits could have a material adverse effect on the
Company's financial condition and results of operations in the period in which
the litigation is resolved. The Company is not able to reasonably estimate
potential losses, if any, related to the complaints.


ITEM 2.   CHANGES IN SECURITIES AND USE OF PROCEEDS

  The Company is furnishing the following information with respect to the use of
proceeds from its initial public offering of common stock, $0.01 par value per
share on July 2, 1997:

     (1) The effective date of the registration statement of the offering and
  the commission file number were July 1, 1997 and 333-27087, respectively.

     (4)(vii) From July 1, 1997 to September 30, 1998, $500,000 of the offering
  proceeds were used to repay certain indebtedness under a secured subordinated
  note, $30,000,000 were paid to APU in connection with the MDI acquisition and
  $ 4,364,000 were used to fund the Company's operations. The balance of the
  offering proceeds ($5,800,000) was invested in commercial paper, corporate
  bonds and money market accounts.

  Except for the $30,000,000 paid to APU which, as a result of the MDI
acquisition, owns 10% or more of the Company's common stock, payment of the
offering proceeds were to persons other than directors, officers, general
partners of the Company or their associates, persons owning 10% or more of the
equity securities of the Company or affiliates of the Company.

ITEM 3.   DEFAULTS UPON SENIOR SECURITIES

    Not applicable.

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

    Not applicable.

ITEM 5.   OTHER INFORMATION

    Not applicable.

ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K

  (a) Exhibits:

  Documents listed below, except for documents identified by footnotes, are
being filed as exhibits herewith. Documents identified by footnotes, if any, are
not being filed herewith and, pursuant to Rule 12b-32 of the General Rules and
Regulations promulgated by the Commission under the Securities Exchange Act of
1934 (the ''Exchange Act'') reference is made to such documents as previously
filed as exhibits with the Commission. The Company's file number under the
Exchange Act is 000-22647.

Exhibit 10.1.   Employment Agreement dated August 13, 1998 between the Company
                and John Giordano.
Exhibit 10.2.   Share Purchase Agreement dated July 20, 1998 between the
                Company and Persist S.A.
Exhibit 11.     Statement re computation of per share earnings

                                       27
<PAGE>
 
Exhibit 27.     Financial Data Schedule

  (b) Reports on Form 8-K


  A Current Report on Form 8-K dated August 17, 1998 was filed by the Company on
August 28, 1998 to announce under Item 5 (Other Events) the resignation of
Douglas A. Catalano as President and Chief Executive Officer of the Company and
the promotion of Allen K. Deary, the Company's Vice President and Chief
Financial Officer to President and Chief Executive Officer. The Company also
announced that Mr. Catalano would remain on the Company's Board of Directors and
that Mr. Deary would remain acting Chief Financial Officer of the Company until
a successor was named.

  A Current Report on Form 8-K dated September 23, 1998 was filed by the Company
on September 28, 1998 to announce the Company's preliminary results for the
quarter ended September 30, 1998. The Company reported under Item 5 (Other
Events) that total revenue in the 1998 third quarter was expected to be between
$4.2 million and $7.7 million and that it expected a net loss for the quarter
(excluding any restructuring charge) of between $8.2 and $4.7 million.

                                       28
<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.

Dated: December 14, 1998


                                  Peritus Software Services, Inc.


                                  By:  /s/   John D. Giordano
                                     ------------------------------------------
                                     John D. Giordano
                                     Vice President, Finance and Chief Financial
                                     Officer (Principal Financial Officer)

                                       29
<PAGE>
 
Exhibit No.                                  Description
-----------                                  -----------


Exhibit 10.1.   Employment Agreement dated August 13, 1998 between the Company
                and John Giordano.

Exhibit 10.2.   Share Purchase Agreement dated July 20, 1998 between the Company
                and Persist S.A.

Exhibit 11.     Statement recomputation of per share earnings

Exhibit 27.     Financial Data Schedule


                                      30