APPNET INC /DE/
424B4, 1999-11-12
BUSINESS SERVICES, NEC
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<S>                                                         <C>
                                                            Filed Pursuant to Rule 424(b)(4)
                                                            Registration #333-89877
                                                            Registration #333-90797
</TABLE>

                                4,300,000 Shares

                                     [LOGO]

                                  APPNET, INC.

                                  Common Stock

                                  -----------

    We are selling 1,500,000 shares of our common stock and the selling
stockholders named under "Selling Stockholders" are selling 2,800,000 shares of
our common stock. We will not receive any of the proceeds from shares of our
common stock sold by the selling stockholders.

    The underwriters have an option to purchase a maximum of 645,000 additional
shares from the selling stockholders to cover over-allotments of shares.

    Our common stock is traded on The Nasdaq Stock Market's National Market
under the symbol "APNT". On November 11, 1999, the last reported sale price of
our common stock was $51.125 per share.

    INVESTING IN OUR COMMON STOCK INVOLVES RISKS. SEE "RISK FACTORS" ON PAGE 4.

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<CAPTION>
                                                                     UNDERWRITING                 PROCEEDS TO
                                                         PRICE TO    DISCOUNTS AND  PROCEEDS TO     SELLING
                                                          PUBLIC      COMMISSIONS   APPNET, INC.  STOCKHOLDERS
                                                       ------------  -------------  ------------  ------------
<S>                                                    <C>           <C>            <C>           <C>
Per Share............................................     $50.00        $2.50         $47.50         $47.50
Total................................................  $215,000,000  $10,750,000    $71,250,000   $133,000,000
</TABLE>

    Delivery of the shares of common stock will be made on or about
November 17, 1999.

    Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

CREDIT SUISSE FIRST BOSTON

           HAMBRECHT & QUIST

                      FIRST UNION SECURITIES, INC.

                                 THE ROBINSON-HUMPHREY COMPANY
<PAGE>
               The date of this prospectus is November 11, 1999.
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                                 --------------

                               TABLE OF CONTENTS

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PROSPECTUS SUMMARY....................      1
RISK FACTORS..........................      4
USE OF PROCEEDS.......................     14
PRICE RANGE OF OUR COMMON STOCK AND
  DIVIDEND POLICY.....................     14
CAPITALIZATION........................     15
DILUTION..............................     16
REPORT OF INDEPENDENT PUBLIC
  ACCOUNTANTS.........................     17
PRO FORMA CONSOLIDATED FINANCIAL
  DATA................................     19
SELECTED FINANCIAL DATA...............     26
MANAGEMENT'S DISCUSSION AND ANALYSIS
  OF FINANCIAL CONDITION AND RESULTS
  OF OPERATIONS.......................     27
BUSINESS..............................     38
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MANAGEMENT............................     52
CERTAIN RELATIONSHIPS AND
  TRANSACTIONS........................     61
PRINCIPAL STOCKHOLDERS................     65
SELLING STOCKHOLDERS..................     66
DESCRIPTION OF CAPITAL STOCK..........     67
SHARES ELIGIBLE FOR FUTURE SALE.......     72
U.S. FEDERAL TAX CONSIDERATIONS FOR
  NON-U.S. HOLDERS....................     74
UNDERWRITING..........................     78
NOTICE TO CANADIAN RESIDENTS..........     80
LEGAL MATTERS.........................     81
EXPERTS...............................     81
WHERE YOU CAN FIND ADDITIONAL
  INFORMATION.........................     81
INDEX TO FINANCIAL STATEMENTS.........    F-1
</TABLE>

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

    YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS DOCUMENT. WE HAVE
NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH INFORMATION THAT IS DIFFERENT. THIS
DOCUMENT MAY ONLY BE USED WHERE IT IS LEGAL TO SELL THESE SECURITIES. YOU SHOULD
ASSUME THAT THE INFORMATION IN THIS DOCUMENT IS ACCURATE ONLY AS OF THE DATE OF
THIS DOCUMENT.

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

    Unless otherwise indicated, (a) all references to "AppNet," "we," "us" and
"our" refer to AppNet, Inc. and, after their respective acquisitions or
formations, its subsidiaries and (b) all references to "GTCR" refer to GTCR
Golder Rauner, L.L.C. and its affiliates, including GTCR Fund VI, L.P., GTCR VI
Executive Fund, L.P. and GTCR Associates VI.

    AppNet has filed for trademark registration of "AppNet" and the related
logo. This prospectus also includes trademarks and tradenames of other parties.

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

                               CAUTIONARY NOTICE
                      REGARDING FORWARD-LOOKING STATEMENTS

    This prospectus contains statements that we believe are "forward-looking
statements" within the meaning of the Private Securities Litigation Reform Act
of 1995. All statements other than statements of historical fact in this
prospectus, including statements regarding our competitive strengths, business
strategy, expected benefits of any acquisition, future financial position,
budgets, projected costs and plans and objectives of management are
forward-looking statements. In addition, forward-looking statements generally
can be identified by the use of forward-looking terminology such as "may,"
"will," "expect," "should," "intend," "estimate," "anticipate," "believe,"
"plan," "continue" or similar terminology. These forward-looking statements are
not guarantees of future performance and are subject to risks, uncertainties and
other factors, some of which are beyond our control, that could cause actual
results to differ materially from those we express or imply in those
forward-looking statements. These factors include those we describe in "Risk
Factors" and elsewhere in this prospectus, and these factors expressly qualify
all written and oral forward-looking statements attributable to us.

                                 --------------
<PAGE>
                               PROSPECTUS SUMMARY

    THE FOLLOWING SUMMARY MAY NOT CONTAIN ALL THE INFORMATION THAT MAY BE
IMPORTANT TO YOU. YOU SHOULD READ THE ENTIRE PROSPECTUS BEFORE DECIDING WHETHER
TO INVEST IN OUR COMMON STOCK. THE INFORMATION IN THIS PROSPECTUS HAS BEEN
ADJUSTED TO GIVE EFFECT TO A 2.85-FOR-ONE REVERSE STOCK SPLIT OF OUR COMMON
STOCK WHICH BECAME EFFECTIVE ON JUNE 15, 1999. EXCEPT AS OTHERWISE INDICATED,
THE INFORMATION IN THIS PROSPECTUS ASSUMES NO EXERCISE OF THE OVER-ALLOTMENT
OPTION TO PURCHASE ADDITIONAL SHARES OF COMMON STOCK GRANTED TO THE
UNDERWRITERS.

                                  APPNET, INC.

    AppNet provides Internet and electronic commerce professional services and
solutions to medium-sized and large businesses. AppNet develops electronic
commerce solutions that facilitate and promote communication and commerce
between businesses and consumers as well as among businesses and their trading
partners. We focus on maximizing the opportunities presented by the Internet and
electronic commerce to enhance all aspects of our clients' operations, from the
front end of their business, creative Website design, to the back end,
back-office integration of existing systems and electronic commerce outsourcing,
creating an end-to-end solution. Our professional services include:

    - strategic consulting;

    - interactive media services such as creative Website design and
      development, branding, which is the creation of a unique corporate
      identity for a client and its products, media planning and buying;

    - Internet-based application development, which is the development of
      software applications that are capable of running on the Internet and are
      written in languages such as Java, C++ and Visual Basic;

    - electronic commerce systems integration, which is the integration of
      electronic commerce systems, which are systems that automate the receipt,
      processing and delivery of transaction data and other information, with
      other corporate software and computer-based applications; and

    - electronic commerce outsourcing, which is the performance of electronic
      commerce services that would otherwise be handled by the client's internal
      staff using the client's resources.

    The rapid growth in the use of the Internet and electronic commerce has
transformed the way businesses operate and interact with their customers and
trading partners. Technology industry research firms predict that the market for
Internet and electronic commerce services worldwide will grow significantly over
the next few years. International Data Corporation estimates that this market
will increase from $7.8 billion in 1998 to $78.6 billion by 2003, which
represents a compound annual growth rate of 59%.

    Over the past several years, we have completed more than 500 projects for
over 200 clients. Our client base is highly diverse and includes corporations
such as @rts @lliance, Baxter Healthcare, Ciena, Comshare, Dial, Ford,
GeoCities, Harmony House, Hyundai, K*B Toys, NEC, Norwest and Unilever.

    AppNet was founded in late 1997 and, therefore, we have a brief operating
history upon which you can evaluate our business and prospects. We have incurred
substantial losses since AppNet was founded, and we anticipate we will continue
to incur substantial losses for the foreseeable future. See "Risk Factors--Our
brief operating history makes it difficult to predict our success" and "Risk
Factors--We have an accumulated deficit of $74.4 million and anticipate future
losses."

    We compete in the highly competitive markets for Internet and electronic
commerce professional services. To compete more effectively, we plan to: expand
our client relationships; increase repeat and recurring revenues; build and
enhance complementary skill sets and maintain our technological

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expertise; pursue client-driven geographic expansion; expand and develop
industry-specific expertise; and attract and retain a highly specialized
workforce.

    We currently have offices in 15 U.S. locations, including the metropolitan
areas of Boston, Denver, Detroit, Los Angeles, New York and Washington, DC. Our
principal executive office is located at 6707 Democracy Boulevard, Suite 1000,
Bethesda, Maryland 20817, and our telephone number is (301) 493-8900. We
maintain a site on the World Wide Web at http://www.appnet.com; however, the
information found on our Website is not part of this prospectus.

                                  THE OFFERING

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Common stock offered......................  1,500,000   shares by us

                                            2,800,000   shares by the selling stockholders
                                            ---------

                                            4,300,000
                                            =========
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Common stock to be outstanding after this
  offering................................  32,497,027 shares. This number is based on the number of
                                            shares outstanding as of September 30, 1999 and excludes
                                            5,347,259 shares of common stock reserved for issuance
                                            upon the exercise of options, warrants and convertible
                                            notes and in connection with contingent payments payable
                                            to former owners of four of the companies we acquired,
                                            New Media Publishing, Inc., Sigma6, Inc., Salzinger &
                                            Company, Inc. and Internet Outfitters, Inc., assuming,
                                            where applicable, the market price of our common stock
                                            when the contingent payments are paid is $50.00 per
                                            share, the price to the public in this offering.

Use of proceeds...........................  Repay debt under our existing credit facility and for
                                            general corporate purposes, including the funding of
                                            working capital and potential acquisitions. We will not
                                            receive any of the proceeds from the sale of shares of
                                            common stock by the selling stockholders.

Nasdaq National Market Symbol.............  "APNT".
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            SUMMARY ACTUAL AND PRO FORMA CONSOLIDATED FINANCIAL DATA

    The following summary actual and pro forma consolidated financial data have
been derived from:

    - the audited financial statements of AppNet for the year ended
      December 31, 1998;

    - the unaudited financial statements of AppNet for the nine months ended
      September 30, 1999; and

    - the unaudited pro forma consolidated financial data included elsewhere in
      this prospectus.

    The pro forma consolidated financial data have been adjusted to reflect the
sale of the common stock offered by us at the public offering price of $50.00
per share.

    You should read the information set forth below in conjunction with our
consolidated financial statements and the related notes, "Use of Proceeds,"
"Capitalization," "Pro Forma Consolidated Financial Data" and "Management's
Discussion and Analysis of Financial Condition and Results of Operations"
included elsewhere in this prospectus.

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                                                      YEAR ENDED                    NINE MONTHS ENDED
                                                  DECEMBER 31, 1998                 SEPTEMBER 30, 1999
                                             ----------------------------       --------------------------
                                                               PRO FORMA                        PRO FORMA
                                              ACTUAL          AS ADJUSTED        ACTUAL        AS ADJUSTED
                                             --------         -----------       --------       -----------
                                                                    (IN THOUSANDS)
<S>                                          <C>              <C>               <C>            <C>
STATEMENT OF OPERATIONS DATA:
Revenues...................................  $ 17,674           $ 69,182        $ 74,802         $ 77,430
Cost of revenues...........................    11,699             41,941          42,205           43,880
                                             --------           --------        --------         --------
    Gross profit...........................     5,975             27,241          32,597           33,550
Total operating expenses(a)................    18,779            105,776          87,766           79,477
                                             --------           --------        --------         --------
Loss from operations.......................   (12,804)           (78,535)        (55,169)         (45,927)
Interest and other expense.................     1,775              1,801           4,507            2,287
Income tax provision (benefit).............      (200)              (100)            328              328
Dividends on and accretion of preferred
  stock....................................       873                 --           2,139               --
                                             --------           --------        --------         --------
Net loss attributable to common
  stockholders.............................  $(15,252)          $(80,236)       $(62,143)        $(48,542)
                                             ========           ========        ========         ========
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                                                                 SEPTEMBER 30, 1999
                                                              -------------------------
                                                               ACTUAL    AS ADJUSTED(B)
                                                              --------   --------------
                                                                   (IN THOUSANDS)
<S>                                                           <C>        <C>
BALANCE SHEET DATA:
Cash and cash equivalents...................................  $  3,236      $ 70,126
Total assets................................................   142,928       209,818
Total debt..................................................    17,585        13,925
Stockholders' equity........................................    89,687       160,237
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- ------------------------

(a) Total operating expenses, on a pro forma as adjusted basis, include pro
    forma stock-based and acquisition-related compensation of $23.1 million and
    pro forma depreciation and amortization of $60.3 million for the year ended
    December 31, 1998 and $11.3 million and $38.2 million, respectively, for the
    nine months ended September 30, 1999.

(b) As adjusted to reflect the issuance of 1,500,000 shares at $50.00 per share,
    the price to the public in this offering.

                                       3
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                                  RISK FACTORS

    INVESTING IN OUR COMMON STOCK INVOLVES RISK. YOU SHOULD CAREFULLY CONSIDER
THE RISKS DESCRIBED BELOW AND THE OTHER INFORMATION IN THIS PROSPECTUS,
INCLUDING OUR CONSOLIDATED FINANCIAL STATEMENTS AND THE RELATED NOTES, BEFORE
YOU PURCHASE ANY OF OUR COMMON STOCK. THE RISKS AND UNCERTAINTIES DESCRIBED
BELOW ARE NOT THE ONLY ONES WE FACE. ADDITIONAL RISKS AND UNCERTAINTIES,
INCLUDING THOSE THAT WE DO NOT KNOW ABOUT NOW OR THAT WE CURRENTLY DEEM
IMMATERIAL, MAY ALSO ADVERSELY AFFECT OUR BUSINESS.

OUR BRIEF OPERATING HISTORY MAKES IT DIFFICULT TO PREDICT OUR SUCCESS.

    AppNet was formed in late 1997. We have a brief operating history upon which
you can evaluate our business and prospects. Our historical results of
operations do not fully give effect to the operations of the companies we have
acquired and the pro forma financial information included in this prospectus is
based in part on the separate pre-acquisition financial information of the
acquired companies. As a result, our historical results of operations and pro
forma financial information may not give you an accurate indication of our
future results of operations or prospects. Companies like us in an early stage
of development frequently encounter risks, expenses and difficulties associated
with starting a new business, many of which may be beyond their control. These
risks and difficulties apply particularly to AppNet because our markets,
Internet and electronic commerce professional services, are new and rapidly
changing.

WE HAVE AN ACCUMULATED DEFICIT OF $74.4 MILLION AND ANTICIPATE FUTURE LOSSES.

    We have incurred substantial losses since AppNet was founded, and we
anticipate we will continue to incur substantial losses for the foreseeable
future. We had an accumulated deficit of approximately $74.4 million as of
September 30, 1999 and a net loss attributable to common stockholders of
$15.3 million and $62.1 million for the year ended December 31, 1998 and the
nine months ended September 30, 1999, respectively. We intend to continue to
invest in internal expansion, infrastructure, integration of our acquired
companies into our existing operations, acquisitions and our marketing and sales
efforts. We cannot predict when we will operate profitably, if at all.

AS OF SEPTEMBER 30, 1999, WE HAD APPROXIMATELY $102.0 MILLION OF INTANGIBLE
ASSETS NET OF ACCUMULATED AMORTIZATION, AND WE EXPECT TO INCUR SIGNIFICANT
ACQUISITION-RELATED COMPENSATION CHARGES.

    We cannot assure you that we will have earnings or cash flow sufficient to
cover our fixed charges or to comply with the financial covenants in our credit
facilities. Our acquisitions significantly increased our intangible assets, such
as goodwill, which represent a significant portion of our assets, and the
charges we expect to incur in connection with the amortization of these
intangible assets will have a material adverse impact on our net income for the
foreseeable future. At September 30, 1999, we had goodwill and other intangible
assets of approximately $102.0 million, net of accumulated amortization. In
addition, in connection with the acquisitions we have completed, we expect to
continue to incur through the end of the year 2000 acquisition-related
compensation charges which will fluctuate based on the market price of our
common stock and the level of achievement of agreed-upon operating targets. If
all of the operating targets are fully met, the aggregate amounts of
compensation expense and additional goodwill that will be recognized will be
approximately $33.0 million and $11.9 million, respectively, assuming, for all
shares issued in connection with these contingent payments, a price per share of
our common stock of $26.25 in the case of New Media Publishing, which was the
last reported sale price of our stock on the measurement date of October 1,
1999, and a price per share of $50.00 in the case of the other companies, which
is the price to the public in this offering. The compensation expense will be
recognized during 1999 and 2000. See "--Our intangible assets represent a
significant portion of our assets; amortization of our intangible assets will
adversely impact our net income and we may never realize the full value of our
intangible assets" for a discussion of accounting treatment issues regarding
intangible assets that will affect our future results of operations.

                                       4
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QUARTER-TO-QUARTER FLUCTUATIONS IN OUR REVENUES AND OPERATING RESULTS COULD
AFFECT THE MARKET PRICE OF OUR COMMON STOCK.

    Our revenues and operating results may vary from quarter-to-quarter as a
result of a number of factors including:

    - number, size and type of client engagements commenced or completed during
      a quarter;

    - effectiveness of integrating acquisitions with existing operations;

    - our ability to attract, train and retain skilled management, technical and
      creative personnel;

    - timing of acquisitions and related costs; and

    - timing and size of acquisition-related compensation charges which
      fluctuate based on the market price of our common stock.

    Because a high percentage of our expenses is fixed, such as compensation and
rent, any of the factors listed above could cause significant variations in our
operating results in any given quarter. Any decline in revenues or earnings or a
greater than expected loss for any quarter could materially adversely affect the
market price of our common stock, even if not reflective of any long-term
problems with our business.

OUR FUTURE SUCCESS DEPENDS ON OUR ABILITY TO EFFECTIVELY INTEGRATE ACQUIRED
COMPANIES AND MANAGE OUR GROWTH.

    Our growth has placed, and will continue to place, significant demands on
our management and operational and financial resources. We have acquired 12
companies since March 1998. Our number of employees has increased from eight as
of March 15, 1998 to 959 as of September 30, 1999. We are in the process of
integrating the companies we have acquired since March 1998 into our
operational, financial and managerial systems. Members of our senior management
may be required to devote considerable amounts of their time to this integration
process, which will decrease the time they will have to service current clients,
attract new clients and develop new products and services. Our business,
financial condition or results of operations could be adversely affected if any
of the companies we have acquired experienced problems in the past of which we
are not currently aware. Claims asserted against us relating to the operation of
the companies we acquired prior to acquisition could exceed the indemnification
we are entitled to or can obtain from the former owners of the acquired
companies.

    As we continue to grow, we expect we will hire more employees and expand the
scope of our operating and financial systems, which will increase our operating
complexity and the level of responsibility exercised by our management
personnel. To manage our growth effectively, we must continue to develop and
improve our own operational and financial systems, including our internal
systems and controls as well as those of the companies we acquired. The failure
to manage our growth effectively could have a material adverse effect on our
business, financial condition or results of operations.

WE MUST ATTRACT AND RETAIN PROFESSIONAL STAFF IN ORDER TO COMPLETE OUR PROJECTS
AND OBTAIN NEW PROJECTS.

    Our failure to attract and retain qualified employees could impair our
ability to complete existing projects and bid for or obtain new projects and, as
a result, could have a material adverse effect on our business, financial
condition or results of operations. Our ability to grow and increase our market
share largely depends on our ability to hire, train, retain and manage highly
skilled employees, including project managers and technical, creative,
consulting and marketing and sales personnel. There is a significant shortage
of, and intense competition for, personnel who are qualified to perform the
services we provide. This shortage will probably continue for the foreseeable
future. In addition, to maintain our position as a provider of Internet and
electronic commerce end-to-end solutions, we must make sure our employees
maintain their technical expertise and business skills. We cannot assure you
that we

                                       5
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will be able to attract a sufficient number of qualified employees or that we
will successfully train and manage the employees we hire.

    In addition, our employees, including key technical personnel, may leave us
to join our competitors or start new businesses which may compete with us. We
cannot assure you that we will be able to prevent the unauthorized disclosure or
use of our proprietary knowledge, practices and procedures if our employees
leave us.

WE ARE DEPENDENT ON ADDITIONAL CAPITAL FOR FUTURE GROWTH.

    Our ability to remain competitive and expand our operations through
acquisitions and internal growth largely depends on our access to capital.
Historically, we have financed capital expenditures and acquisitions primarily
by incurring debt and issuing equity securities. We may incur additional debt
and issue equity securities in the future to finance our growth strategy or
capital expenditures. We cannot assure you that additional financing will be
available to us on satisfactory terms, or at all. Additional indebtedness would
make us more vulnerable to economic downturns and may limit our ability to
withstand competitive pressures. The terms of any additional indebtedness may
include restrictive financial and operating covenants which would limit our
ability to compete and expand. Additional issuances of our common stock may
significantly dilute the equity interests of our existing stockholders. Our
failure to obtain any required additional financing, on satisfactory terms, or
at all, could have a material adverse effect on our business, financial
condition or results of operations. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations" for a further discussion of our
liquidity and capital requirements over the next 18 months.

OUR REVENUES ARE DIFFICULT TO PREDICT BECAUSE THEY ARE PRIMARILY GENERATED ON A
PROJECT-BY-PROJECT BASIS AND OUR PROJECTS CAN BE TERMINATED.

    If our existing agreements with clients are terminated before we complete
our engagements, or if we are unable to enter into new engagements, our
business, financial condition or results of operations could be materially
adversely affected. Our success will depend on our ability to establish
relationships with additional medium-sized and large businesses and other
corporate users of Internet and electronic commerce professional services. We
derive our revenues in large part from fees for services generated on a
project-by-project basis. These projects vary in size, scope and duration. A
client that accounts for a significant portion of our revenues in a particular
period may not account for a similar portion of our revenues in future periods.
A client may or may not engage us for further services once a project is
completed. As a result, our revenues are not recurring from period to period,
which makes them more difficult to predict.

OUR CONTRACTS CONTAIN PRICING RISKS.

    Generally, we charge our clients for the time, materials and expenses
incurred. Although we have limited experience pricing and managing fixed-price
contracts, we intend to increase the percentage of our work that is billed at a
fixed price. However, if we underestimate the resources and time required to
complete our projects, we could be subject to cost overruns leading to losses on
our engagements.

LOSS OF THE SERVICES OF OUR SENIOR MANAGEMENT COULD ADVERSELY AFFECT OUR
  BUSINESS.

    The loss of our senior managers' services or other key members of management
could have a material adverse effect on our business, financial condition or
results of operations. Our success depends heavily on the efforts of the members
of our senior management team. We cannot assure you that we will be able to
prevent the unauthorized disclosure or use of our proprietary knowledge,
practices and procedures if our senior managers leave us. See "Management" for
additional information about our senior managers.

                                       6
<PAGE>
WE FACE INTENSE COMPETITION.

    The markets for Internet and electronic commerce professional services are
relatively new, intensely competitive, quickly evolving and subject to rapid
technological change. We expect competition to continue and intensify in the
foreseeable future. Our competitors can be divided into several groups:

    - Internet professional services providers, such as Agency.com, iXL,
      Proxicom, Razorfish, Scient, US Interactive, USWeb and Viant;

    - large information technology consulting services providers, such as
      Andersen Consulting, Cambridge Technology Partners, CSC, EDS, IBM and
      Sapient;

    - interactive advertising agencies, such as Darwin Digital, Giant Step, Grey
      Interactive, Modem Media . Poppe Tyson and Thunderhouse;

    - electronic commerce software and service providers, such as BroadVision,
      Harbinger, Open Market and Sterling Commerce; and

    - Internet access and service providers, such as Abovenet, Exodus and
      Frontier/Global.

    Our competitors have begun to offer multiple Internet and electronic
commerce professional services, rather than specialize in one area, or have
announced their intention to do so. These companies may continue to expand their
operations so that they offer a full range of Internet and electronic commerce
professional services and products. Some of our competitors, IBM, USWeb and EDS,
currently provide all of the services that we provide.

    Many of our competitors have longer operating histories and client
relationships, greater financial, technical, marketing and public relations
resources, larger client bases and greater brand or name recognition than we
have. Our competitors may be able to respond more quickly to technological
developments and changes in clients' needs. We must promote and enhance our
reputation and brand in order to attract new clients and differentiate ourselves
from our competitors. See "Business--Competition" for a further discussion of
competition within our industry.

THE BARRIERS TO ENTER OUR BUSINESS ARE LOW.

    There are relatively low barriers to entry into our business. We do not own
any technologies that preclude or inhibit competitors from entering our markets.
Our competitors may independently develop and patent or copyright technologies
that are superior or substantially similar to our technologies. The costs to
develop and provide Internet or electronic commerce professional services are
low. Therefore, we expect to continue to face additional competition from new
entrants into our markets.

WE MUST RESPOND TO RAPID TECHNOLOGICAL ADVANCES.

    Our success will depend, in part, on our ability to keep pace with:

    - rapidly changing technology;

    - evolving industry standards and practices;

    - frequent new service and product introductions and enhancements; and

    - changing user and client requirements and preferences.

    Any delay or failure on our part in responding quickly, cost-effectively and
sufficiently to these developments could render our existing products and
services obsolete and have a material adverse effect on our business, financial
condition or results of operations. We may have to incur substantial
expenditures to modify or adapt our services or infrastructure to respond to the
widespread adoption of new Internet, networking or telecommunications
technologies or other technological changes. We must stay abreast of
cutting-edge technological developments and evolving service offerings to remain
competitive, increase the utility of our services and attract and retain
qualified employees. We must be

                                       7
<PAGE>
able to incorporate new technologies into the Internet and electronic commerce
solutions we design and develop to address the increasingly complex and varied
needs of our customer base.

OUR BUSINESS IS DEPENDENT ON THE CONTINUED USE AND GROWTH OF THE INTERNET AND
  ELECTRONIC COMMERCE.

    Our business would be adversely affected if use of the Internet and
electronic commerce does not continue to develop, or develops more slowly than
expected. Our market is relatively new and rapidly evolving. Our future success
depends on the acceptance by current and future clients of Internet and
electronic commerce professional services as an integral part of their
businesses. Demand and market acceptance for these new technological services
are subject to a high level of uncertainty.

    In addition, if use of the Internet grows, the Internet infrastructure may
not be able to support the demands placed on it. The performance and reliability
of the Internet may decline as the number of users and the amount of traffic
increases. Internet sites have experienced interruptions in their service as a
result of outages and other delays occurring throughout the Internet network
infrastructure. To cope with growth in the use of the Internet, the Internet
will require a reliable network backbone with the necessary speed, data capacity
and security and the timely development of complementary products, such as
high-speed modems, for providing reliable Internet access and services. If the
necessary infrastructure, products, services or facilities are not developed or
if use of the Internet as a medium for communication and commerce does not
develop, our business, financial condition or results of operations could be
materially and adversely affected.

WE HAVE POTENTIAL LIABILITY TO CLIENTS WHO ARE DISSATISFIED WITH OUR SERVICES.

    We design, develop, implement and manage Internet and electronic commerce
solutions that are crucial to the operation of our clients' businesses. Defects
in the solutions we develop could result in delayed or lost revenues, adverse
customer reaction and negative publicity about us or our services or require
expensive corrections, any of which could have a material adverse effect on our
business, financial condition or results of operations. Clients who are not
satisfied with our services could bring claims against us for substantial
damages. Any claims asserted against us could exceed the level of our insurance.
We cannot assure you that the insurance we carry will continue to be available
on economically reasonable terms, or at all. The successful assertion of one or
more large claims against us that are uninsured, exceed our insurance coverage
or result in changes to our insurance policies, including premium increases,
could have a material adverse effect on our business, financial condition or
results of operations.

OUR FAILURE TO PROTECT OUR INTELLECTUAL PROPERTY RIGHTS OR MAINTAIN OUR RIGHTS
TO USE LICENSED INTELLECTUAL PROPERTY COULD ADVERSELY AFFECT OUR BUSINESS.

    We believe our success depends, in part, on protecting our proprietary
intellectual property. We have not received patent or copyright protection for
most of our intellectual property. We cannot assure you that we will be able to
prevent infringement or detect misappropriation of our intellectual property. A
failure to protect our intellectual property in a meaningful manner could have a
material adverse effect on our business, financial condition or results of
operations.

    We rely on technologies licensed from third parties. We cannot assure you
that these licenses will continue to be available to us on commercially
reasonable terms. The loss of these technologies could require us to obtain
substitute technologies of lower quality or performance standards or at greater
cost, which could have a material adverse effect on our business, financial
condition or results of operations.

    Third parties may assert or prosecute infringement claims against us in
connection with the services and products we offer, and we may or may not be
able to successfully defend any such claims. We generally indemnify our clients
against any third-party intellectual property claims. Any significant claim
against us or for which we have indemnified others could have a material adverse
effect on our business, financial condition or results of operations.

                                       8
<PAGE>
    In connection with our Internet and electronic commerce professional
services, we develop intellectual property for our clients. We frequently assign
ownership of such intellectual property to the client and retain only a license
for limited uses. Issues relating to ownership of and rights to use intellectual
property can be complicated. We may become involved in disputes that affect our
ability to resell or reuse this intellectual property. In addition, many of our
projects involve the use of material that is confidential or proprietary client
information. The successful assertion of one or more large claims against us by
our clients or other third parties could adversely affect us.

WE SOMETIMES AGREE NOT TO PERFORM SERVICES FOR OUR CLIENTS' COMPETITORS.

    Our customer contracts may contain restrictive provisions which are in
effect during the term of the contract and may remain in effect for a limited
period, generally one year, thereafter. The scope of the restrictive provisions
varies. They can include provisions restricting our employees who are engaged on
a project for a client from performing the same or substantially similar
services for a competitor of that client. They may also include provisions
prohibiting us from developing products or performing services for our clients'
competitors. These restrictive provisions may limit our ability to enter into
engagements with new clients for specified periods of time.

OUR INTERNATIONAL OPERATIONS AND EXPANSION INVOLVE FINANCIAL AND OPERATIONAL
  RISKS.

    We intend to expand our business into international markets. Revenues from
our existing international operations were insignificant in 1998. We may incur
significant costs in connection with our international expansion.

    There are also risks inherent in doing business in foreign countries, such
as:

    - changes in legal and regulatory requirements;

    - export and import restrictions, tariffs and other trade barriers;

    - currency fluctuations and the on-going conversion to the euro in several
      member states of the European Union;

    - difficulties in staffing and managing foreign offices as a result of,
      among other things, distance, language and cultural differences;

    - longer payment cycles and problems in collecting accounts receivable;

    - political and economic instability;

    - seasonal reductions in business activity; and

    - potentially adverse tax consequences.

    Any of these factors could have a material adverse effect on our
international and domestic business, financial condition or results of
operations.

OUR ELECTRONIC COMMERCE OUTSOURCING CENTERS COULD BE VULNERABLE TO SECURITY AND
TECHNICAL RISKS AND MAY REQUIRE ADDITIONAL INVESTMENT.

    We provide electronic commerce outsourcing services to our customers. We
perform electronic commerce functions that would otherwise be handled by the
customer's internal staff using the customer's resources.

    Our electronic commerce outsourcing services rely on encryption and
authentication technology licenses from third parties to provide the security
and authentication needed to safely transmit confidential information. Although
we have designed and implemented a variety of network security measures,
unauthorized access, computer viruses, accidental or intentional acts and other
disruptions may occur. Our electronic commerce outsourcing centers may
experience delays or service interruptions

                                       9
<PAGE>
as a result of the accidental or intentional acts of Internet users, current and
former employees or others. Such acts could potentially jeopardize the security
of confidential information, such as credit card and bank account numbers,
stored in our and our clients' computer systems. Such a breach in security could
result in liability to us and in the loss of existing clients or the deterrence
of potential clients.

    Although we plan to continue using industry-standard security measures, such
measures have been circumvented in the past, and ours may be circumvented in the
future. The costs required to eliminate computer viruses and alleviate other
security problems could be prohibitively expensive, and efforts to address such
problems could result in delays or interruption of service to our clients. These
could in turn have a material adverse effect on our business, financial
condition or results of operations.

    In the event our hardware malfunctions and our back-up systems fail, we may
not be able to maintain our standard of service to our customers. In addition,
each of our electronic commerce outsourcing centers has been configured to
provide services that facilitate commerce and communication either between
businesses and consumers, known as business-to-consumer services, or between
businesses and their trading partners, known as business-to-business services,
but not both. If we were unable to provide outsourcing services at one of our
outsourcing centers, it would materially adversely impact our ability to
continue to provide the type of electronic commerce outsourcing services
processed through that center. We may be required to make additional investments
in our electronic commerce outsourcing centers in order to increase capacity and
respond to technological developments.

OUR INTANGIBLE ASSETS REPRESENT A SIGNIFICANT PORTION OF OUR ASSETS;
AMORTIZATION OF OUR INTANGIBLE ASSETS WILL ADVERSELY IMPACT OUR NET INCOME AND
WE MAY NEVER REALIZE THE FULL VALUE OF OUR INTANGIBLE ASSETS.

    Our acquisitions have resulted in significant goodwill and other intangible
assets, which are being amortized over various periods, primarily two to three
years. At September 30, 1999, we had goodwill and other intangible assets of
approximately $102.0 million, net of accumulated amortization. Charges we would
have incurred in connection with the amortization of intangible assets during
the year ended December 31, 1998 and the nine months ended September 30, 1999,
after giving pro forma effect to the acquisitions we made in 1998 and 1999,
would have increased our net loss by $49.1 million and decreased our net loss by
$4.7 million, respectively. We expect the amount of goodwill associated with the
acquisitions we made in 1998 and 1999 will increase in the future as a result of
a portion of the contingent purchase consideration that may become payable if
the agreed-upon operating targets for the following three acquired companies are
fully met: New Media Publishing, Internet Outfitters and TransForm IT. The
actual amount of goodwill that will be recorded will depend in part on the price
per share of our common stock and such goodwill will be recorded through the end
of the year 2000. We will continue to incur non-cash charges in connection with
the amortization of our intangible assets over their respective useful lives,
and we expect such charges will have a significant adverse impact on our net
income for the foreseeable future.

    We cannot assure you that we will ever realize the value of these intangible
assets. In the future, as events or changes in circumstances indicate that the
carrying amount of our intangible assets may not be recoverable, we will
evaluate the carrying value of our intangible assets and may take an additional
charge to our earnings. Any future determination requiring the write-off of a
significant portion of unamortized intangible assets could have a material
adverse effect on our business, financial condition or results of operations.
See "Management's Discussion and Analysis of Financial Condition and Results of
Operations" for a further discussion of our intangible assets.

THE YEAR 2000 PROBLEM MAY ADVERSELY AFFECT OUR BUSINESS.

    The risks posed by the Year 2000 problem could adversely affect our business
in a number of significant ways. Many of our clients and potential clients
maintain their operations on systems that

                                       10
<PAGE>
could be impacted by Year 2000 problems. If our clients fail to ensure their
systems are Year 2000 compliant and Year 2000 problems materially adversely
affect them, our business could be materially adversely affected, particularly
if demand for our services declines while companies redirect their resources to
upgrade their computer systems. We also depend heavily on the availability of
the Internet infrastructure to conduct our business and provide services to our
clients. Disruptions in the Internet infrastructure arising from Year 2000
problems could materially affect our business, financial condition or results of
operations.

    In addition, our business could be materially adversely affected if we
cannot obtain products, services or systems that are Year 2000 compliant when we
need them. We rely on our suppliers for hardware, software and services. We are
in the process of obtaining assurances from our suppliers that they are
Year 2000 compliant. Our internal information systems may experience operations
difficulties because of undetected errors or defects in the technology used. The
expense to correct such defects could have a material adverse effect on our
business, results of operations or financial condition.

    Because we provide computer-related services, the risk we will be involved
in a lawsuit relating to Year 2000 issues is likely to be greater than that of
companies in other industries. Because the solutions we deliver are sometimes
dependent upon third-party products and components, it may be difficult to
determine which component of our solution may cause a Year 2000 problem. As a
result, we may become involved in litigation concerning our services or products
and components of a third party. We sometimes provide an express warranty to
clients that our work is Year 2000 compliant. However, even absent an express
Year 2000 warranty, there is a risk that clients for whom we have provided
services will try to hold us liable for damages caused by the Year 2000 problem.

    We cannot guarantee that we will be Year 2000 compliant in a timely manner.
Moreover, the costs related to Year 2000 compliance could be significant. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" for a further discussion of the potential effects of the Year 2000
problem on our business.

GOVERNMENT REGULATION AND LEGAL UNCERTAINTIES RELATING TO THE INTERNET COULD
ADVERSELY AFFECT OUR BUSINESS.

    Increased regulation of the Internet might slow the growth in use of the
Internet, which could decrease demand for our services, increase our cost of
doing business or otherwise have a material adverse effect on our business,
financial condition or results of operations. Congress has recently passed
legislation regulating certain aspects of the Internet, including on-line
content, children's protection, copyright infringement, user privacy, taxation,
access charges, liability for third-party activities, transmission of sexually
explicit material and jurisdiction. In addition, federal, state and local
governmental organizations as well as foreign governments are considering other
legislative and regulatory proposals that would regulate the Internet. Areas of
potential regulation include libel, pricing, quality of products and services
and intellectual property ownership. We do not know how courts will interpret
laws governing the Internet or the extent to which they will apply existing laws
regulating issues such as property ownership, libel and personal privacy to the
Internet. Therefore, we are not certain how new laws governing the Internet or
other existing laws will affect our business.

APPNET WILL CONTINUE TO BE EFFECTIVELY CONTROLLED BY ITS SIGNIFICANT
  STOCKHOLDERS.

    Upon completion of this offering, Ken Bajaj, AppNet's President and Chief
Executive Officer, and GTCR will beneficially own 8.2% and 33.6%, respectively,
of our outstanding common stock. As a result, GTCR and Mr. Bajaj will be able to
exercise a controlling influence over the outcome of matters submitted to our
stockholders for approval, including the election of directors, appointment of
new management, amendments to our certificate of incorporation and mergers or
sales of all of our assets. GTCR and Mr. Bajaj will have substantial power to
delay, defer or prevent a change in control of AppNet. See "Management--Board of
Directors," "Principal Stockholders" and "Certain Relationships

                                       11
<PAGE>
and Transactions" for a further discussion of Mr. Bajaj's and GTCR's ownership
of our capital stock and their respective relationships with us.

INVESTORS IN THIS OFFERING WILL EXPERIENCE IMMEDIATE DILUTION.

    If you purchase common stock in this offering, you will pay more for your
shares than the amounts paid by existing stockholders for their shares. As a
result, if you purchase shares in this offering at the price to the public of
$50.00, you will experience immediate dilution of approximately $48.21,
representing the difference between the public offering price and our net
tangible book value per share as of September 30, 1999, after giving effect to
this offering at the offering price to the public. In addition, you may
experience future dilution to the extent that shares of our common stock are
issued upon the exercise of stock options and warrants, the conversion of
promissory notes and the achievement of targets for contingent payment
consideration in connection with the following four acquisitions: New Media
Publishing, Sigma 6, Salzinger & Company and Internet Outfitters. We expect that
shares issued in connection with these acquisitions will be issued at an
effective price less than the public offering price per share in this offering.
See "Dilution" for a more complete description of how the value of your
investment in our common stock will be diluted upon completion of this offering.

EXTERNAL FACTORS COULD ADVERSELY AFFECT THE MARKET PRICE OF OUR COMMON STOCK.

    The market price of our common stock could fluctuate significantly as a
result of:

    - variations in our operating results which may cause us to fail to meet
      analysts' or investors' expectations;

    - general economic and stock market conditions;

    - changes in financial estimates by securities analysts;

    - earnings and other announcements by, and changes in market evaluations of,
      providers of Internet and electronic commerce professional services;

    - changes in business or regulatory conditions affecting us;

    - announcements by us or our competitors of technological innovations or new
      products or services; and

    - trading of our common stock.

    The securities of many companies have experienced extreme price and volume
fluctuations in recent years, often unrelated to the companies' operating
performance. For example, market prices for securities of Internet-related and
technology companies have frequently reached elevated levels, often following
these companies' initial public offerings. In many cases these levels have
subsequently proven to be unsustainable and, in those cases, share prices often
declined significantly. The trading price of our common stock has increased
significantly since our June 1999 initial public offering and could decline
significantly in the future. In the past, following periods of volatility in the
market price of a company's securities, that company's stockholders have often
instituted securities class action litigation against the company. If we were
involved in such a class action suit, it could have a material adverse effect on
our business, financial condition or results of operations.

THE SALE OR AVAILABILITY FOR SALE OF SUBSTANTIAL AMOUNTS OF OUR COMMON STOCK
COULD ADVERSELY AFFECT ITS MARKET PRICE.

    Sales of substantial amounts of our common stock in the public market after
the completion of this offering, or the perception that such sales could occur,
could adversely affect the market price of our common stock and could materially
impair our future ability to raise capital through offerings of our common
stock.

                                       12
<PAGE>
    In connection with this offering, we, our officers, our directors and the
selling stockholders have agreed not to offer or transfer any shares of common
stock for 90 days after completion of this offering without the underwriters'
consent. However, the underwriters may release these shares from these
restrictions at any time. We cannot predict what effect, if any, market sales of
shares held by GTCR or any other stockholder or the availability of these shares
for future sale will have on the market price of our common stock. See "Shares
Eligible for Future Sale" for a more detailed description of the restrictions on
selling shares of our common stock after this offering.

ANTI-TAKEOVER PROVISIONS OF DELAWARE'S GENERAL CORPORATION LAW AND OUR
CERTIFICATE OF INCORPORATION COULD DELAY OR DETER A CHANGE IN CONTROL.

    Our amended and restated certificate of incorporation and our bylaws, as
well as various provisions of the Delaware General Corporation Law, may make it
more difficult to effect a change in control of our company. The existence of
these provisions may adversely affect the price of our common stock, discourage
third parties from making a bid for our company or reduce any premiums paid to
our stockholders for their common stock. For example, our certificate of
incorporation authorizes our Board of Directors to issue up to 5,000,000 shares
of "blank check" preferred stock and to attach special rights and preferences to
such preferred stock. The issuance of this preferred stock may make it more
difficult for a third party to acquire control of us. See "Description of
Capital Stock--Preferred stock," and "Description of Capital
Stock--Anti-takeover effects of AppNet's certificate of incorporation and bylaws
and provisions of Delaware law" for a more complete description of our capital
stock, our certificate of incorporation and the effects of the Delaware General
Corporation Law which could hinder a third party's attempts to acquire control
of us.

                                       13
<PAGE>
                                USE OF PROCEEDS

    The net proceeds we will receive from the sale of the 1,500,000 shares of
our common stock we are offering is approximately $70.6 million, based upon the
public offering price of $50.00 per share, after deducting underwriting
discounts and commissions and estimated offering expenses payable by AppNet. We
will not receive any of the proceeds from the sale of shares of common stock by
the selling stockholders.

    We expect to use the net proceeds from this offering to:

    - repay all of the approximately $5.5 million of aggregate indebtedness
      ($3.7 million of which was outstanding as of September 30, 1999),
      including accrued interest under our existing credit facility, which is a
      $20 million revolving credit facility with BankBoston, N.A. and Antares
      Capital Corporation; and

    - for general corporate purposes, including the funding of working capital
      requirements and potential acquisitions.

    The amounts borrowed under our credit facility are due in full on
August 24, 2001. The interest rate on indebtedness under our credit facility is
variable and ranges from the prime rate plus 0.25% to the prime rate plus 1.5%
or from LIBOR plus 2.25% to LIBOR plus 3.5%. Amounts we repay may be reborrowed
under the revolving credit facility. See "Management's Discussion and Analysis
of Financial Condition and Results of Operations--Liquidity and capital
resources" for a discussion of our future liquidity.

    We anticipate that, in addition to the underwriting discounts and
commissions, we will pay fees and expenses of approximately $0.7 million in
connection with this offering. The principal components of that amount will be
the fees and expenses of our accountants and attorneys, the costs of printing
this prospectus and other offering materials, The Nasdaq Stock Market listing
fees and Securities and Exchange Commission and National Association of
Securities Dealers filing fees. The selling stockholders will not pay any
portion of such expenses.

                      PRICE RANGE OF OUR COMMON STOCK AND

                                DIVIDEND POLICY

    Our common stock is traded on the Nasdaq National Market under the symbol
"APNT." We have set forth in the following table the high and low bid prices of
our common stock from the date of our initial public offering through
November 11, 1999, as reported by the Nasdaq National Market.

<TABLE>
<CAPTION>
                                                               HIGH       LOW
                                                             --------   --------
<S>                                                          <C>        <C>
Fiscal 1999
  Second Quarter (beginning June 18, 1999).................   $13.75    $ 8.63
  Third Quarter............................................    40.00     10.00
  Fourth Quarter (through November 11, 1999)...............    67.25     25.75
</TABLE>

    These quotations reflect inter-dealer prices, without retail mark-up,
mark-down or commission and may not necessarily represent actual transactions.
On November 11, 1999, the last reported sale price of our common stock was
$51.125, and there were approximately 188 record holders of our common stock.

    We have never declared or paid any cash dividends on our common stock and do
not expect to do so in the foreseeable future. The terms of our credit facility,
restrict our ability to pay dividends on our common stock. We intend to retain
any earnings to finance the expansion and development of our business. Subject
to the restriction on dividends in our credit facilities, any future
determination to pay dividends will be made at the discretion of our Board of
Directors and will be based upon our earnings, financial condition and capital
requirements and any other conditions our Board of Directors deems relevant. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and capital resources" for a discussion of our credit
facility and how it restricts our ability to pay dividends on our common stock.

                                       14
<PAGE>
                                 CAPITALIZATION

    We have set forth in the following table AppNet's capitalization as of
Setember 30, 1999 on an actual basis and on an as adjusted basis to reflect the
sale of 1,500,000 shares of common stock by AppNet in this offering at the
public offering price of $50.00 per share and the application of the net
proceeds of $70.6 million.

    You should read this table in conjunction with "Use of Proceeds," "Pro Forma
Consolidated Financial Data," "Management's Discussion and Analysis of Financial
Condition and Results of Operations" and our consolidated financial statements
and the related notes included elsewhere in this prospectus.

    The amount shown for stockholders' equity and common stock excludes:

    - 3,636,756 shares of common stock reserved for issuance in connection with
      AppNet's stock incentive plans;

    - 70,175 shares of common stock reserved for issuance at an exercise price
      of $0.3007 per share in connection with outstanding warrants to purchase
      common stock;

    - 828,702 shares of common stock reserved for issuance in connection with
      outstanding promissory notes convertible into shares of our common stock
      at a weighted average conversion price of $11.20 per share; and

    - 811,626 shares of common stock reserved or to be reserved for issuance in
      connection with contingent payments payable to the former owners of four
      of the companies we acquired, New Media Publishing, Sigma6, Salzinger &
      Company and Internet Outfitters, assuming, in the case of Sigma6, that the
      market price of our common stock at the time the contingent payments are
      made is $50.00, the price to the public in this offering.

<TABLE>
<CAPTION>
                                                                SEPTEMBER 30, 1999
                                                              ----------------------
                                                               ACTUAL    AS ADJUSTED
                                                              --------   -----------
                                                                  (IN THOUSANDS)
<S>                                                           <C>        <C>

Cash and cash equivalents...................................  $  3,236    $ 70,126
                                                              ========    ========
Credit facilities...........................................     3,660      --
Other long-term debt(a).....................................     4,640       4,640
Convertible notes...........................................     9,285       9,285

Stockholders' equity:
  Common stock, $0.0005 par value, 75,000,000 shares
    authorized; actual, 31,162,465 shares issued and
    30,997,027 shares outstanding; as adjusted, 32,497,027
    shares outstanding......................................        16          17
  Additional paid-in capital................................   165,135     235,684
  Treasury stock............................................       (50)        (50)
  Notes receivable..........................................      (617)       (617)
  Accumulated deficit.......................................   (74,383)    (74,383)
  Deferred compensation.....................................      (414)       (414)
                                                              --------    --------
    Total stockholders' equity..............................    89,687     160,237
                                                              --------    --------
    Total capitalization....................................  $107,272    $174,162
                                                              ========    ========
</TABLE>

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

(a) Other long-term debt includes current and non-current debt obligations and
    capital lease obligations.

                                       15
<PAGE>
                                    DILUTION

    AppNet's net tangible book value as of September 30, 1999 was a deficit of
$12.3 million or $(0.40) per share of common stock. Net tangible book value per
share of common stock represents the amount of total tangible assets less the
sum of total liabilities. After giving effect to the sale of 1,500,000 shares of
our common stock in this offering at the public offering price of $50.00 per
share and the application of the net proceeds from this offering, AppNet's
adjusted net tangible book value at September 30, 1999 would have been
approximately $58.2 million or $1.79 per share of common stock. This represents
an immediate increase in net tangible book value of $2.19 per share of common
stock to existing stockholders and an immediate dilution in net tangible book
value of $48.21 per share of common stock to new investors purchasing shares in
this offering. Dilution is determined by subtracting net tangible book value per
share after the offering from the amount of cash paid by a new investor for a
share of common stock. The following table illustrates this per share dilution
as of September 30, 1999:

<TABLE>
<CAPTION>
                                                                   PER SHARE
                                                              -------------------
<S>                                                           <C>        <C>
 Offering price.............................................              $50.00
  Net tangible book value as of September 30, 1999..........   $(0.40)
  Increase in net tangible book value attributable to new
    investors...............................................     2.19
                                                               ------
  Net tangible book value per share after this offering.....                1.79
                                                                          ------
  Dilution to new investors.................................              $48.21
                                                                          ======
</TABLE>

    As of September 30, 1999, there were outstanding options to purchase
2,556,842 shares of common stock at a weighted average exercise price of $12.14
per share, outstanding warrants to purchase 70,175 shares of common stock at a
weighted average exercise price of $0.3007 per share and convertible notes to
purchase 828,702 shares of common stock at a weighted average conversion price
of $11.20 per share. To the extent that these options and warrants are
exercised, and the convertible notes are converted, there will be further
dilution to new investors. We expect new investors to experience further
dilution as a result of the issuance of shares of common stock to the former
owners of four of the businesses we have acquired in connection with contingent
payments payable to them. These acquired businesses are New Media Publishing,
Sigma6, Salzinger & Company and Internet Outfitters.

    The following table sets forth, as of September 30, 1999, the number of
shares of our common stock purchased from AppNet, the total consideration paid
to AppNet and the average price paid per share by existing stockholders and by
new investors at the public offering price of $50.00 per share.

<TABLE>
<CAPTION>
                                            SHARES PURCHASED        TOTAL CONSIDERATION
                                          ---------------------   -----------------------   AVERAGE PRICE
                                            NUMBER     PERCENT       AMOUNT      PERCENT      PER SHARE
                                          ----------   --------   ------------   --------   -------------
<S>                                       <C>          <C>        <C>            <C>        <C>
Existing stockholders...................  30,997,027     95.4%    $150,793,000     66.8%       $ 4.86
New investors...........................   1,500,000      4.6       75,000,000     33.2         50.00
                                          ----------    -----     ------------    -----
  Total.................................  32,497,027    100.0%    $225,793,000    100.0%
                                          ==========    =====     ============    =====
</TABLE>

                                       16
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To AppNet, Inc.:

    We have examined the pro forma acquisition and initial public offering
adjustments reflecting the transactions described in the introduction to the pro
forma consolidated financial data contained on page 19 and in Notes (a) through
(j) to this statement and the application of those adjustments to the historical
amounts in the accompanying pro forma consolidated statement of operations of
AppNet, Inc. (formerly AppNet Systems, Inc.) for the year ended December 31,
1998. The historical consolidated statement of operations is derived from the
year ended December 31, 1998 historical financial statements of AppNet, Inc.,
i33 communications corp., Salzinger & Company, Inc. and Internet Outfitters,
Inc., each of which were audited by us, appearing elsewhere herein, the
financial statements of Arbor Intelligent Systems, Inc., Software Services
Corporation, New Media Publishing, Inc., Century Computing, Incorporated,
Research & Planning, Inc. and The Kodiak Group, Inc. acquired by AppNet, Inc.
during 1998 for the period in 1998 prior to their acquisitions, each of which
were also audited by us, appearing elsewhere herein, the unaudited historical
financial statements of Logex International, L.L.C. for the period in 1998 prior
to its acquisition and the unaudited historical financial statements of Sigma6
Inc., and Transform IT, Incorporated for the year ended December 31, 1998. Such
pro forma and offering adjustments are based upon management's assumptions
described in the introduction to the pro forma consolidated financial data
contained on page 19 and in Notes (a) through (j). Our examination was made in
accordance with standards established by the American Institute of Certified
Public Accountants and, accordingly, included such procedures as we considered
necessary in the circumstances.

    We have reviewed the related pro forma acquisition, initial public offering
and offering adjustments reflecting the transactions described in the
introduction to the pro forma consolidated financial data contained on page 19
and in Notes (a) through (k) and the application of those adjustments to the
historical amounts in the accompanying pro forma consolidated statement of
operations for the nine months ended September 30, 1999. The historical
consolidated statement of operations is derived from the historical unaudited
statement of operations of AppNet, Inc., which was reviewed by us, appearing
elsewhere herein, and the historical unaudited statements of operations for i33
communications corp., Salzinger & Company, Inc., Internet Outfitters, Inc.,
Sigma6, Inc. and Transform IT, Incorporated for the period in 1999 prior to
their acquisitions, each of which were reviewed by us. Such pro forma and
offering adjustments are based on management's assumptions as described in the
introduction to the pro forma consolidated financial data contained on page 19
and in Notes (a) through (k). Our review was made in accordance with standards
established by the American Institute of Certified Public Accountants.

    The objective of this pro forma financial information is to show what the
significant effects on the historical financial information might have been had
the transactions occurred at an earlier date. However, the pro forma
consolidated statements of operations are not necessarily indicative of the
results of operations that would have been attained had the above-mentioned
transactions actually occurred earlier.

    In our opinion, management's assumptions provide a reasonable basis for
presenting the significant effects directly attributable to the above-mentioned
transactions described in the introduction to the pro forma consolidated
financial data contained on page 19 and in Notes (a) through (j), the related
pro forma acquisition and initial public offering adjustments give appropriate
effect to those assumptions, and the pro forma consolidated column reflect the
proper application of those adjustments to the historical financial amounts in
the pro forma consolidated statement of operations for the year ended
December 31, 1998.

    A review is substantially less in scope than an examination, the objective
of which is the expression of an opinion on management's assumptions, the pro
forma acquisition, initial public offering and

                                       17
<PAGE>
offering adjustments and the application of those adjustments to historical
financial information. Accordingly, we do not express such an opinion on the pro
forma acquisition, initial public offering and offering adjustments or the
application of such adjustments to the pro forma consolidated statement of
operations for the nine months ended September 30, 1999. Based on our review,
however, nothing came to our attention that caused us to believe that
management's assumptions do not provide a reasonable basis for presenting the
significant effects directly attributable to the above-mentioned transactions
described in the introduction to the pro forma consolidated financial data
contained on page 19 and in Notes (a) through (k), that the related pro forma
acquisition, initial public offering and offering adjustments do not give
appropriate effect to those assumptions, or that the pro forma as adjusted
column does not reflect the proper application of those adjustments to the
historical financial statement amounts in the pro forma consolidated statement
of operations for the nine months ended September 30, 1999.

                                          ARTHUR ANDERSEN LLP

Vienna, VA
November 11, 1999

                                       18
<PAGE>
                     PRO FORMA CONSOLIDATED FINANCIAL DATA

    The following tables set forth the unaudited pro forma consolidated
statements of operations of AppNet for the year ended December 31, 1998 and for
the nine months ended September 30, 1999. The pro forma consolidated statement
of operations for the year ended December 31, 1998 gives effect on a pro forma
basis to the following transactions as if they had all occurred on January 1,
1998:

    - the acquisitions we made in 1998 and 1999;

    - GTCR's investment in AppNet;

    - the reduction of interest expense due to the conversion into shares of our
      common stock of a $406,000 note payable, which occurred in June 1999 upon
      our initial public offering;

    - the reduction of the dividends on and accretion of preferred stock
      resulting from the exchange of 45,430 and 11,576 shares of Class A and
      Class B Preferred Stock, respectively, plus related accrued dividends, for
      shares of common stock in June 1999 upon our initial public offering; and

    - the reduction of interest expense resulting from the repayment of amounts
      formerly outstanding under our previous credit facilities with a portion
      of the proceeds of our initial public offering.

    This offering will not result in any additional pro forma adjustments for
the year ended December 31, 1998.

    The pro forma consolidated statement of operations for the nine months ended
September 30, 1999 gives effect to the following transactions as if they had all
occurred on January 1, 1998:

    - the acquisitions we made in 1998 and 1999;

    - the reduction of interest expense due to the conversion into shares of our
      common stock of a $406,000 note payable, which occurred in June 1999 upon
      our initial public offering;

    - the reduction of the dividends on and accretion of preferred stock
      resulting from the exchange of 45,430 and 11,576 shares of Class A and
      Class B Preferred Stock, respectively, plus related accrued dividends, for
      shares of common stock in June 1999 upon our initial public offering; and

    - the reduction of interest expense resulting from the repayment of amounts
      formerly outstanding under our previous credit facilities with a portion
      of the proceeds of our initial public offering.

    The pro forma consolidated statement of operations for the nine months ended
September 30, 1999 gives effect on a pro forma as adjusted basis to the
reduction in interest expense from the repayment of approximately $3.7 million
of indebtedness outstanding under our credit facilities as of September 30, 1999
using an assumed 73,200 shares of the 1,500,000 shares we are selling in this
offering. The effect of the remaining 1,426,800 shares has not been reflected in
these pro forma statements of operations.

    The information in the pro forma consolidated statement of operations for
the year ended December 31, 1998 has been derived from the audited statements of
operations for the year ended December 31, 1998 of AppNet, i33 communications
corp., Salzinger & Company, Inc. and Internet Outfitters, Inc., the unaudited
statements of operations of Sigma6, Inc. and TransForm IT, Incorporated for the
year ended December 31, 1998 and the audited statements of operations of the
companies we acquired in 1998 for the periods during 1998 prior to acquisition,
all of which, except the statements of operations for Sigma6, Inc. and TransForm
IT, Incorporated, are included elsewhere in this prospectus.

    The information in the pro forma consolidated statement of operations for
the nine months ended September 30, 1999 has been derived from the unaudited
statement of operations of AppNet for the nine months ended September 30, 1999,
included elsewhere in this prospectus, and the unaudited

                                       19
<PAGE>
statements of operations for the companies acquired in 1999 for the periods
during 1999 prior to their acquisition.

    The acquisitions we made were accounted for using the purchase method of
accounting. The purchase method of accounting allocates the aggregate purchase
price to the assets acquired and liabilities assumed based upon their respective
fair values. The excess of purchase price over the fair value of tangible and
identifiable intangible assets acquired, net of liabilities assumed, has been
reflected as goodwill. AppNet believes that the preliminary allocations set
forth herein are reasonable; however, in some cases the final allocations will
be based upon valuations and other studies that are not yet complete. As a
result, the allocations set forth herein are subject to revision as additional
information becomes available, and such revised allocations could differ from
those set forth herein.

    The unaudited pro forma consolidated statements of operations are based upon
currently available information and assumptions and estimates which management
believes are reasonable. These assumptions and estimates, however, are subject
to change, including, without limitation, adjustments for potential cost savings
or other synergies arising from the acquisitions we made in 1998 and 1999 and
the impact of fluctuations in the market price of our common stock. These
statements are presented for comparative purposes only and do not purport to be
indicative of the actual results of operations that might have occurred or
expected future results. You should read the unaudited consolidated pro forma
financial data in conjunction with our consolidated financial statements and the
related notes and the audited financial statements and the related notes of the
companies we acquired included elsewhere in this prospectus.

                                       20
<PAGE>
                                  APPNET, INC.
                PRO FORMA CONSOLIDATED STATEMENTS OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1998
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>

                                                           CONSOLIDATED
                                                              APPNET      ARBOR(A)    SSC(A)    CENTURY(A)    NMP(A)     R&P(A)
                                                           ------------   --------   --------   ----------   --------   --------
<S>                                                        <C>            <C>        <C>        <C>          <C>        <C>
Revenues.................................................   $   17,674     $ 688     $10,788     $10,040      $3,711     $5,303
Cost of revenues.........................................       11,699       471       7,392       6,192       1,542      2,667
                                                            ----------     -----     -------     -------      ------     ------
  Gross profit...........................................        5,975       217       3,396       3,848       2,169      2,636

Operating expenses:
  Selling and marketing..................................          964        14         567         112         227        260
  General and administrative.............................        6,507       226       1,856       2,639       1,868        644
  Stock-based and other acquisition-related
    compensation.........................................        1,157       465       2,654         953          --         --
  Depreciation and amortization..........................       10,151        29         230         156         123         80
                                                            ----------     -----     -------     -------      ------     ------
    Total operating expenses.............................       18,779       734       5,307       3,860       2,218        984
                                                            ----------     -----     -------     -------      ------     ------

Income (loss) from operations............................      (12,804)     (517)     (1,911)        (12)        (49)     1,652
Interest expense (income)................................        1,052        29          28         (41)         --        (11)
Other expense, net.......................................          723       211         372         423          --         99
                                                            ----------     -----     -------     -------      ------     ------
Income (loss) before income taxes........................      (14,579)     (757)     (2,311)       (394)        (49)     1,564
Income taxes.............................................         (200)       --        (598)       (135)         13         29
                                                            ----------     -----     -------     -------      ------     ------
Net income (loss)........................................   $  (14,379)    $(757)    $(1,713)    $  (259)     $  (62)    $1,535
                                                            ==========     =====     =======     =======      ======     ======

Dividends on and accretion of preferred stock............          873
                                                            ----------
Net loss attributable to common stockholders.............   $  (15,252)
                                                            ==========

Basic and diluted net loss per common share..............   $    (1.41)
                                                            ==========
Weighted average common shares outstanding (h)...........   10,785,424
                                                            ==========

<CAPTION>
                                                                                                                    OTHER
                                                                                                   INTERNET        ACQUIRED
                                                           KODIAK(A)    I33(A)    SALZINGER(A)   OUTFITTERS(A)   COMPANIES(A)
                                                           ---------   --------   ------------   -------------   ------------
<S>                                                        <C>         <C>        <C>            <C>             <C>
Revenues.................................................   $6,289      $4,360       $3,110          $2,343         $4,876
Cost of revenues.........................................    3,221       2,251        1,738           1,287          3,481
                                                            ------      ------       ------          ------         ------
  Gross profit...........................................    3,068       2,109        1,372           1,056          1,395
Operating expenses:
  Selling and marketing..................................       66         985            2              47             83
  General and administrative.............................    1,691       1,343          425             859            973
  Stock-based and other acquisition-related
    compensation.........................................      250          --           --              57             --
  Depreciation and amortization..........................      136         114           13              57             62
                                                            ------      ------       ------          ------         ------
    Total operating expenses.............................    2,143       2,442          440           1,020          1,118
                                                            ------      ------       ------          ------         ------
Income (loss) from operations............................      925        (333)         932              36            277
Interest expense (income)................................        2          11          (20)             47             (9)
Other expense, net.......................................        8          35           --              --             15
                                                            ------      ------       ------          ------         ------
Income (loss) before income taxes........................      915        (379)         952             (11)           271
Income taxes.............................................        5         (34)          --              52            (85)
                                                            ------      ------       ------          ------         ------
Net income (loss)........................................   $  910      $ (345)      $  952          $  (63)        $  356
                                                            ======      ======       ======          ======         ======
Dividends on and accretion of preferred stock............

Net loss attributable to common stockholders.............

Basic and diluted net loss per common share..............

Weighted average common shares outstanding (h)...........

<CAPTION>
                                                            PRO FORMA    INITIAL PUBLIC
                                                           ACQUISITION      OFFERING       PRO FORMA
                                                           ADJUSTMENTS    ADJUSTMENTS     CONSOLIDATED
                                                           -----------   --------------   ------------
<S>                                                        <C>           <C>              <C>
Revenues.................................................   $     --        $    --       $    69,182
Cost of revenues.........................................         --             --            41,941
                                                            --------        -------       -----------
  Gross profit...........................................         --             --            27,241
Operating expenses:
  Selling and marketing..................................         --             --             3,327
  General and administrative.............................         --             --            19,031
  Stock-based and other acquisition-related
    compensation.........................................     17,610 (b)         --            23,146
  Depreciation and amortization..........................     49,121 (c)         --            60,272
                                                            --------        -------       -----------
    Total operating expenses.............................     66,731             --           105,776
                                                            --------        -------       -----------
Income (loss) from operations............................    (66,731)            --           (78,535)
Interest expense (income)................................      4,774 (d)     (4,840)(i)         1,022
Other expense, net.......................................     (1,107)(e)         --               779
                                                            --------        -------       -----------
Income (loss) before income taxes........................    (70,398)         4,840           (80,336)
Income taxes.............................................        853 (f)         --              (100)
                                                            --------        -------       -----------
Net income (loss)........................................    (71,251)         4,840           (80,236)

Dividends on and accretion of preferred stock............      2,731 (g)     (3,604)(j)            --
                                                            --------        -------       -----------
Net loss attributable to common stockholders.............   $(73,982)       $ 8,444       $   (80,236)
                                                            ========        =======       ===========
Basic and diluted net loss per common share..............                                 $     (2.72)
                                                                                          ===========
Weighted average common shares outstanding (h)...........                                  29,454,481
                                                                                          ===========
</TABLE>

                                       21
<PAGE>
                                  APPNET, INC.
                PRO FORMA CONSOLIDATED STATEMENTS OF OPERATIONS
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                                                                      OTHER        PRO FORMA    INITIAL PUBLIC
                          CONSOLIDATED                               INTERNET        ACQUIRED     ACQUISITION      OFFERING
                             APPNET       I33(A)    SALZINGER(A)   OUTFITTERS(A)   COMPANIES(A)   ADJUSTMENTS    ADJUSTMENTS
                          ------------   --------   ------------   -------------   ------------   -----------   --------------
<S>                       <C>            <C>        <C>            <C>             <C>            <C>           <C>
Revenues................   $   74,802      $103       $   417          $ 663          $1,445        $     --       $     --
Cost of revenues........       42,205        48           214            431             982              --             --
                           ----------      ----       -------          -----          ------        --------       --------
  Gross profit..........       32,597        55           203            232             463              --             --

Operating expenses:
  Selling and
    marketing...........        5,832        19            48             15              81              --             --
  General and
    administrative......       23,347        70           161            232             185              --             --
  Stock-based and other
    acquisition-related
    compensation........       15,730        --           675             21              --          (5,158)(b)          --
  Depreciation and
    amortization........       42,857         3             3             18               8          (4,670)(c)          --
                           ----------      ----       -------          -----          ------        --------       --------
    Total operating
      expenses..........       87,766        92           887            286             274          (9,828)            --
                           ----------      ----       -------          -----          ------        --------       --------
Income (loss) from
  operations............      (55,169)      (37)         (684)           (54)            189           9,828             --
Interest expense
  (income)..............        3,948        --            (2)            17               3             196 (d)      (2,284)(i)
Other expense, net......          559        --           472             --              --            (472)(e)          --
                           ----------      ----       -------          -----          ------        --------       --------
Income (loss) before
  income taxes..........      (59,676)      (37)       (1,154)           (71)            186          10,104          2,284
Income taxes............          328        --            --            (27)             70             (43)(f)          --
                           ----------      ----       -------          -----          ------        --------       --------
Net income (loss).......   $  (60,004)     $(37)      $(1,154)         $ (44)         $  116        $ 10,147       $  2,284
                           ==========      ====       =======          =====          ======        ========       ========

Dividends on and
  accretion of preferred
  stock.................        2,139                                                                     93(g)      (2,232)(j)
                           ----------                                                               --------       --------
Net loss attributable to
  common stockholders...   $  (62,143)                                                              $ 10,054       $  4,516
                           ==========                                                               ========       ========

Basic and diluted net
  loss per common
  share.................   $    (2.57)
                           ==========
Weighted average common
  shares outstanding
  (h)...................   24,200,397
                           ==========

<CAPTION>

                           PRO FORMA      OFFERING      PRO FORMA
                          CONSOLIDATED   ADJUSTMENTS   AS ADJUSTED
                          ------------   -----------   -----------
<S>                       <C>            <C>           <C>
Revenues................   $   77,430      $    --     $    77,430
Cost of revenues........       43,880           --          43,880
                           ----------      -------     -----------
  Gross profit..........       33,550           --          33,550
Operating expenses:
  Selling and
    marketing...........        5,995           --           5,995
  General and
    administrative......       23,995           --          23,995
  Stock-based and other
    acquisition-related
    compensation........       11,268           --          11,268
  Depreciation and
    amortization........       38,219           --          38,219
                           ----------      -------     -----------
    Total operating
      expenses..........       79,477           --          79,477
                           ----------      -------     -----------
Income (loss) from
  operations............      (45,927)          --         (45,927)
Interest expense
  (income)..............        1,878         (150 )(k)       1,728
Other expense, net......          559           --             559
                           ----------      -------     -----------
Income (loss) before
  income taxes..........      (48,364)         150         (48,214)
Income taxes............          328           --             328
                           ----------      -------     -----------
Net income (loss).......   $  (48,692)     $   150     $   (48,542)
                           ==========      =======     ===========
Dividends on and
  accretion of preferred
  stock.................           --           --              --
                           ----------      -------     -----------
Net loss attributable to
  common stockholders...   $  (48,692)     $   150     $   (48,542)
                           ==========      =======     ===========
Basic and diluted net
  loss per common
  share.................   $    (1.53)                 $     (1.52)
                           ==========                  ===========
Weighted average common
  shares outstanding
  (h)...................   31,878,685                   31,951,885
                           ==========                  ===========
</TABLE>

                                       22
<PAGE>
            NOTES TO PRO FORMA CONSOLIDATED STATEMENTS OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1998
                AND FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999
                                  (UNAUDITED)

    The following adjustments were applied to AppNet's consolidated statement of
operations and the financial data of the companies we acquired in 1998 and 1999
to arrive at the unaudited pro forma consolidated statement of operations.

    (a) In the pro forma consolidated statement of operations for the year ended
December 31, 1998, these columns reflect the actual results of operations for
the acquisitions we completed in 1998 from January 1, 1998 to the date prior to
which each respective acquisition was consummated and for the companies we
acquired in 1999 for the full year ended December 31, 1998. In the pro forma
consolidated statement of operations for the nine months ended September 30,
1999, these columns reflect the actual results of operations for the
acquisitions we completed in 1999 from January 1, 1999 to the date prior to
which each respective acquisition was consummated as if they had occurred on
January 1, 1998.

    (b) This adjustment was made to reflect a full year of the estimated
compensation charge for contingent payments in connection with our acquisitions
in 1998 and 1999 and to reduce pro forma expense for stock-based and other
acquisition-related compensation expense recorded by the acquired companies
prior to their acquisition by AppNet which arose as a direct result of their
acquisition by AppNet:

<TABLE>
<CAPTION>
                                                       YEAR ENDED       NINE MONTHS ENDED
                                                    DECEMBER 31, 1998   SEPTEMBER 30, 1999
                                                    -----------------   ------------------
                                                                (IN THOUSANDS)
<S>                                                 <C>                 <C>
Additional contingent payment compensation
 expense..........................................        $21,989            $(4,462)
Less: Acquisition-related compensation expense
 recorded by acquired businesses..................         (4,379)              (696)
                                                         --------            -------
                                                          $17,610            $(5,158)
                                                         ========            =======
</TABLE>

    The compensation arrangements have periods over which the compensation
amounts are earned ranging from twelve to twenty-four months. When the
compensation arrangements are reflected as if the acquisitions occurred
January 1, 1998, a portion of the stock-based and other acquisition related
compensation expense recognized by AppNet in its historical statement of
operations as of September 30, 1999 is included in the pro forma statement of
operations as of December 31, 1998. This occurs because, on a pro forma basis,
several of the compensation arrangements would have been fully earned and
recorded as of December 31, 1998. As a result, there is a pro forma adjustment
which reduces stock-based and other acquisition-related compensation expense in
the pro forma statement of operations for the nine months ended September 30,
1999 and increases stock-based and other acquisition-related compensation
expense in the pro forma statement of operations for the year ended
December 31, 1998.

    See Note 16 of AppNet's historical consolidated financial statements
included elsewhere in this prospectus which further explains the amount shown as
contingent payment compensation expense. This pro forma amount has been
calculated assuming the operating targets related to the contingent payments
payable to the former owners of five of the companies we acquired, New Media
Publishing, Sigma6, Salzinger & Company, Internet Outfitters and TransForm IT,
are fully met. This also assumes a price per share of our common stock of $26.25
in the case of New Media Publishing, which was the last reported sale price of
our common stock on the measurement date of October 1, 1999, and a per share
price of $50.00 in the case of the other companies, which is the price to the
public in this offering. Total contingent payments, which have a fair value of
approximately $44.9 million based on the above

                                       23
<PAGE>
per share prices, will be reflected as compensation expense over a weighted
average period of 18 months. These charges will be fully recognized by the end
of the year 2000.

    (c) This adjustment was made to record amortization expense related to
acquired identifiable intangible assets and goodwill. Such amounts are being
amortized over the estimated useful life of each asset, primarily two to three
years. Six of the acquisitions, LOGEX International, New Media Publishing,
Sigma6, Salzinger & Company, Internet Outfitters and TransForm IT, provide for
additional purchase consideration, primarily cash and stock, which is payable
upon the attainment of agreed-upon operating targets. A portion of this amount
will be recorded as additional goodwill. If the operating targets are fully met,
the aggregate amount of additional goodwill will be approximately
$11.9 million, assuming a per share price of common stock at the time the
contingency is resolved of $26.25 in the case of New Media Publishing, which was
the last reported sale price of our common stock on the measurement date of
October 1, 1999, and $50.00 in the case of the other companies, which is the
price to the public in this offering. See "Risk Factors--Our intangible assets
represent a significant portion of our assets; amortization of our intangible
assets will adversely impact our net income and we may never realize the full
value of our intangible assets" for additional information on these amortization
expenses.

    (d) This adjustment was made to reflect a full year of interest expense on
acquisition debt financing. The increase in the interest expense is a result of
the amounts drawn under the credit facilities to the balance outstanding at the
time of our initial public offering of approximately $59.4 million at a weighted
average interest rate of 8.0%. Additionally, the increase results from notes
issued to former owners of the acquired businesses with a principal balance of
approximately $15.6 million at the time of our initial public offering which had
a weighted average interest rate of 5.7%. The adjustment is as follows:

<TABLE>
<CAPTION>
                                                               YEAR ENDED       NINE MONTHS ENDED
                                                            DECEMBER 31, 1998   SEPTEMBER 30, 1999
                                                            -----------------   ------------------
                                                                        (IN THOUSANDS)
<S>                                                         <C>                 <C>
Interest on credit facility...............................        $4,550             $ 1,178
Interest on notes to former owners of the acquired
 businesses...............................................           948                 237
Less: interest recorded by AppNet and acquired
 businesses...............................................          (724)             (1,219)
                                                                 -------             -------
                                                                  $4,774              $  196
                                                                 =======             =======
</TABLE>

    (e) This adjustment was made to eliminate costs of investment advisors and
other professionals incurred by the companies we acquired in 1998 and 1999 which
were directly attributable to the sale of those companies to AppNet.

    (f) This adjustment was made to record the estimated tax benefit for the
full year of 1998 and the estimated tax provision for the nine months ended
September 30, 1999 and to reflect the tax impact of the previous pro forma
adjustments, net of an applicable valuation allowance.

<TABLE>
<CAPTION>
                                                       YEAR ENDED       NINE MONTHS ENDED
                                                    DECEMBER 31, 1998   SEPTEMBER 30, 1999
                                                    -----------------   ------------------
                                                                (IN THOUSANDS)
<S>                                                 <C>                 <C>
Income taxes......................................        $(100)              $ 328
Less: historical tax (benefit)/provision recorded
      by AppNet and the acquired businesses.......         (953)                371
                                                          -----               -----
Net adjustment....................................        $ 853               $ (43)
                                                          =====               =====
</TABLE>

    (g) For the pro-forma statement of operations as of December 31, 1998, this
adjustment was made to reflect a full year of preferred stock dividends on the
preferred stock issued to finance our acquisitions. For the pro forma statement
of operations for the nine months ended September 30, 1999, this adjustment was
made to reflect preferred stock dividends on the preferred stock issued to
finance our 1999 acquisitions as if the preferred stock was outstanding from
January 1, 1998 to the date of our initial public offering in June 1999. At the
time of the initial public offering, we exchanged the preferred stock and the
preferred stock dividends for common stock. See Note (j).

                                       24
<PAGE>
    (h) Pro forma weighted average common shares outstanding for the year ended
December 31, 1998 reflects the effects of shares we issued in connection with
the acquisitions we made in 1998 and 1999 and GTCR's investment in AppNet, as if
all of these shares had been issued as of January 1, 1998. Pro forma weighted
average common shares outstanding for the nine months ended September 30, 1999
reflects the effects of shares we issued in connection with the acquisitions we
made in 1999 as if all these shares had been issued as of January 1, 1998, and
also reflects shares we expect to issue in connection with contingent payment
arrangements. Based on the measurement periods of the contingent payment
arrangements, the dates that conditions would have been met for shares to be
earned and therefore included in the weighted-average shares outstanding
calculation would have been January 1, 1999 and June 30, 1999 had the
acquisitions occurred January 1, 1998. As such, these shares have been included
in the pro forma weighted average shares outstanding calculation for the nine
months ended September 30, 1999 for the periods in 1999 for which they would
have been outstanding.

    In addition, the pro forma weighted average shares outstanding for the year
ended December 31, 1998, and for the nine months ended September 30, 1999,
reflects the following shares we issued in connection with our initial public
offering:

    - the 6,000,000 shares we issued in our initial public offering;

    - the conversion of a $406,000 note payable into 42,309 shares of common
      stock; and

    - the issuance of 4,936,808 shares of common stock in connection with the
      exchange of Class A and Class B Preferred Stock and related accrued
      dividends.

    The pro forma, as adjusted, weighted average shares outstanding for the nine
months ended September 30, 1999 reflects 73,200 of the 1,500,000 shares of
common stock to be issued in connection with this offering, the proceeds of
which will be used to repay indebtedness of approximately $3.7 million under our
credit facility.

    (i) This adjustment was made to eliminate interest expense as a result of
the repayment of our former credit facilities and the conversion of a $406,000
note payable and $1.0 million notes payable into shares of our common stock in
connection with our initial public offering:

<TABLE>
<CAPTION>
                                                                  YEAR ENDED       NINE MONTHS ENDED
                                                               DECEMBER 31, 1998   SEPTEMBER 30, 1999
                                                               -----------------   ------------------
                                                                           (IN THOUSANDS)
<S>                                                            <C>                 <C>
Repayment of former credit facilities.......................        $(4,769)            $(2,257)
Other.......................................................            (71)                (27)
                                                                    -------             -------
                                                                    $(4,840)            $(2,284)
                                                                    =======             =======
</TABLE>

    (j) This adjustment was made to eliminate dividends on and accretion of
preferred stock as a result of the exchange of preferred stock in connection
with our initial public offering, as follows:

<TABLE>
<CAPTION>
                                                                  YEAR ENDED       NINE MONTHS ENDED
                                                               DECEMBER 31, 1998   SEPTEMBER 30, 1999
                                                               -----------------   ------------------
                                                                           (IN THOUSANDS)
<S>                                                            <C>                 <C>
Class A Preferred Stock.....................................        $(2,909)            $(1,889)
Class B Preferred Stock.....................................           (695)               (343)
                                                                    -------             -------
                                                                    $(3,604)            $(2,232)
                                                                    =======             =======
</TABLE>

    (k) This adjustment was made to eliminate interest expense as a result of
the repayment of the credit facility borrowings of approximately $3.7 million
outstanding at September 30, 1999 from the proceeds AppNet expects to receive in
this offering.

                                       25
<PAGE>
                            SELECTED FINANCIAL DATA
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)

    The following tables contain selected financial data of AppNet as of and for
the year ended December 31, 1998, as of and for the nine months ended September
30, 1999 and for the nine months ended September 30, 1998, and for its
predecessor, Software Services Corporation, as of and for each of the years in
the four-year period ended December 31, 1997, as of August 24, 1998 and for the
period from January 1, 1998 to August 24, 1998. The consolidated statement of
operations data and balance sheet data for AppNet for the year ended
December 31, 1998 are derived from financial statements audited by Arthur
Andersen LLP, independent public accountants, and are included elsewhere in this
prospectus. The statement of operations data for AppNet for the nine months
ended September 30, 1999 and 1998 and the balance sheet data for AppNet as of
September 30, 1999 are derived from the unaudited financial statements of AppNet
included elsewhere in this prospectus. The statement of operations data for
Software Services Corporation for the years ended December 31, 1996 and 1997 and
for the period from January 1, 1998 to August 24, 1998 and the balance sheet
data as of December 31, 1996 and 1997 and August 24, 1998 are derived from the
financial statements of Software Services Corporation, which have been audited
by Arthur Andersen LLP and are included elsewhere in this prospectus. The
statement of operations data for the years ended December 31, 1994 and 1995 and
the balance sheet data as of December 31, 1994 and 1995 are unaudited and have
been prepared on the same basis as the audited consolidated financial statements
of Software Services Corporation included elsewhere in this prospectus. In the
opinion of management, this unaudited information includes all adjustments,
consisting of only normally recurring adjustments, necessary for a fair
presentation of such information. The historical results are not necessarily
indicative of results to be expected for any future period. You should read the
data set forth below in conjunction with "Management's Discussion and Analysis
of Financial Condition and Results of Operations," our consolidated financial
statements and the related notes and Software Services Corporation's financial
statements and the related notes, included elsewhere in this prospectus.
<TABLE>
<CAPTION>
                                                  SOFTWARE SERVICES CORPORATION                               APPNET
                                 ---------------------------------------------------------------   -----------------------------
                                                                                       PERIOD                      NINE MONTHS
                                              YEAR ENDED DECEMBER 31,                   ENDED       YEAR ENDED        ENDED
                                 -------------------------------------------------   AUGUST 24,    DECEMBER 31,   SEPTEMBER 30,
                                    1994         1995         1996         1997         1998           1998            1998
                                 ----------   ----------   ----------   ----------   -----------   ------------   --------------
                                                                                                                   (UNAUDITED)
<S>                              <C>          <C>          <C>          <C>          <C>           <C>            <C>
STATEMENT OF OPERATIONS DATA:
  Revenues.....................  $    9,563   $   11,065   $   11,789   $   13,298   $   10,788    $    17,674     $     3,508
  Net income (loss)............         282          181          (53)         431       (1,713)       (14,379)         (4,586)
  Dividends on and accretion of
    preferred stock............          --           --           --           --           --            873            (110)
  Net income (loss)
    attributable to common
    stockholders...............         282          181          (53)         431       (1,713)       (15,252)         (4,696)
PER SHARE AMOUNTS:
  Basic and diluted net income
    (loss) per common share....  $     0.05   $     0.03   $    (0.01)  $     0.08   $    (0.30)   $     (1.41)    $     (0.59)
  Weighted average common
    shares outstanding.........   6,000,000    6,000,000    5,727,000    5,705,000    5,697,000     10,785,424       8,018,434

<CAPTION>
                                     APPNET
                                 --------------
                                  NINE MONTHS
                                     ENDED
                                 SEPTEMBER 30,
                                      1999
                                 --------------
                                  (UNAUDITED)
<S>                              <C>
STATEMENT OF OPERATIONS DATA:
  Revenues.....................   $    74,802
  Net income (loss)............       (60,004)
  Dividends on and accretion of
    preferred stock............        (2,139)
  Net income (loss)
    attributable to common
    stockholders...............       (62,143)
PER SHARE AMOUNTS:
  Basic and diluted net income
    (loss) per common share....   $     (2.57)
  Weighted average common
    shares outstanding.........    24,200,397
</TABLE>
<TABLE>
<CAPTION>
                                                 DECEMBER 31,
                               -------------------------------------------------    AUGUST 24,             DECEMBER 31,
                                  1994         1995         1996         1997          1998                    1998
                               ----------   ----------   ----------   ----------   -------------           ------------

<S>                            <C>          <C>          <C>          <C>          <C>             <C>     <C>
BALANCE SHEET DATA:
  Total assets...............  $    2,239   $    3,217   $    3,155   $    3,667    $    4,973             $   118,370
  Total debt(1)..............           6          575          992          666            --                  43,792
  Class A Preferred Stock....          --           --           --           --            --                  37,646
  Stockholders' equity.......       1,641        1,811        1,458        1,886         3,487                  23,608

<CAPTION>

                               SEPTEMBER 30,
                                    1999
                               --------------
                                (UNAUDITED)
<S>                            <C>              <C>
BALANCE SHEET DATA:
  Total assets...............   $   142,928
  Total debt(1)..............        17,585
  Class A Preferred Stock....            --
  Stockholders' equity.......        89,687
</TABLE>

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

(1) Total debt includes the current and long-term portions of notes payable and
    capital lease obligations for Software Services Corporation and includes the
    current and long-term portions of long-term debt, convertible notes, capital
    lease obligations and credit facilities for AppNet.

                                       26
<PAGE>
               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS

    IN ADDITION TO HISTORICAL INFORMATION, THE FOLLOWING DISCUSSION MAY INCLUDE
FORWARD-LOOKING STATEMENTS THAT INVOLVE RISKS AND UNCERTAINTIES WHICH COULD
RESULT IN OPERATING PERFORMANCE THAT IS MATERIALLY DIFFERENT FROM MANAGEMENT'S
PROJECTIONS. FACTORS THAT COULD CAUSE OR CONTRIBUTE TO THESE DIFFERENCES INCLUDE
THOSE DISCUSSED IN "RISK FACTORS," AS WELL AS THOSE DISCUSSED ELSEWHERE IN THIS
PROSPECTUS. YOU SHOULD READ THE FOLLOWING DISCUSSION OF THE FINANCIAL CONDITION
AND RESULTS OF OPERATIONS OF APPNET AND ITS PREDECESSOR, SOFTWARE SERVICES
CORPORATION, IN CONJUNCTION WITH THEIR RESPECTIVE CONSOLIDATED FINANCIAL
STATEMENTS AND THE RELATED NOTES, "PRO FORMA CONSOLIDATED FINANCIAL DATA" AND
"SELECTED FINANCIAL DATA" INCLUDED ELSEWHERE IN THIS PROSPECTUS.

OVERVIEW

    AppNet provides Internet and electronic commerce professional services and
solutions to medium-sized and large businesses. We develop end-to-end electronic
commerce solutions that improve communication and commerce between businesses
and consumers as well as among businesses and their trading partners. Through
strategic acquisitions and internal growth, we have built a company with the
ability to design, develop, implement and manage end-to-end Internet and
electronic commerce solutions.

    AppNet's financial statements for the period from inception, November 6,
1997, through December 31, 1997, reflect immaterial transactions and, therefore,
these transactions have been included in our 1998 financial statements to
facilitate presentation. From inception through March 11, 1998, our operating
activities primarily consisted of developing a preliminary business plan,
recruiting personnel, engaging in discussions with prospective lenders and
strategic investors, identifying potential acquisition targets and developing
preliminary technical and marketing materials. Our strategic plan identified the
specific professional services which are required to provide clients with
end-to-end solutions. We then identified a group of companies which focused on
providing services in one or more of these professional services areas. After
reviewing and evaluating over 100 companies, we ultimately acquired a set of
companies that we believe fit together strategically and culturally and which,
when integrated with one another, could design, develop, implement and manage
end-to-end solutions. In March 1998, we completed our first acquisition. Since
that time, AppNet has completed 11 additional acquisitions.

    Typically, the consideration we paid to make our acquisitions included cash,
shares of our common stock, promissory notes, promissory notes convertible into
shares of our common stock and, in six of our acquisitions, LOGEX International,
New Media Publishing, Sigma6, Salzinger & Company, Internet Outfitters and
TransForm IT, contingent payments payable in cash and/or shares of our common
stock payable upon the attainment of agreed-upon operating targets. The cash
portion of such consideration was financed primarily by an investment in our
company by GTCR and Smart Technology and borrowings under our credit facilities.
Our acquisitions have been accounted for using the purchase method of
accounting. Accordingly, the purchase price has been allocated, based on
preliminary estimates of fair value, to the tangible assets and liabilities
assumed, and in most cases, with the advice of independent valuation experts, to
the identifiable intangible assets, as of the acquisition dates. Final estimates
of fair value will be made upon the completion of independent valuations for our
1999 acquisitions and the final determination of preexisting contingencies.
Since the Internet and the electronic commerce industries are in an early stage
of development and continue to evolve rapidly and because competition in these
industries is expected to increase, the recorded goodwill and identified
intangibles from each of the acquisitions are being amortized on a straight-line
basis primarily over two to three years, the estimated period of benefit.

                                       27
<PAGE>
    AppNet's revenues are comprised primarily of fees generated for professional
services billed. We also generate fees from outsourcing services although these
fees currently represent a small portion of our revenues. One of our strategies
is to increase the percentage of our revenues generated by fees from outsourcing
services. During the development of our outsourcing business, we may incur
losses and operating margins may be reduced as we build our operations and
infrastructure to support this line of business.

    In general, we bill our professional services on a time and materials basis;
however, a portion of our services is billed on a fixed-price basis. AppNet
recognizes revenue from time and materials projects based on fixed hourly rates
for direct labor hours expended and revenues from fixed-price projects based on
the percentage-of-completion method of accounting, with costs and estimated
profits recorded as work is performed. Provisions for estimated losses on
uncompleted contracts are made in the period in which the losses are determined.
Changes in contract scope and estimated profitability, including final contract
settlements, may result in adjustments to costs and revenues and are recognized
in the period in which the adjustments are determined.

    AppNet's cost of revenues includes all direct labor and other direct costs
related to contract performance. Cost of revenues consists primarily of salaries
and related employee benefits of billable employees.

    Selling and marketing expenses are comprised of the salaries and related
employee benefits of sales and marketing employees and the costs of sales,
marketing and advertising activities. We compensate our sales employees with a
combination of base salaries and commissions. We anticipate that selling and
marketing expenses may increase as a percentage of our revenues in future
periods as we continue to build our corporate sales team and expand our
marketing strategy.

    AppNet's general and administrative costs include salaries and related
employee benefits for finance, legal, human resources and administrative
personnel. The general and administrative expenses also include facilities
costs, recruiting, training and other corporate costs. As a result of
anticipated additional hiring costs associated with the integration of the
businesses we acquired in 1998 and 1999, our general and administrative expenses
will increase, although they may decline as a percentage of our revenues.

    Stock-based and other acquisition-related compensation includes expenses
related to the cash and stock-based contingent payments payable to former owners
of five businesses, New Media Publishing, Sigma6, Salzinger & Company, Internet
Outfitters and TransForm IT, we acquired if agreed-upon operating targets are
achieved and these former stockholders remain employed by AppNet. These
contingent payments are accounted for as operating expenses in accordance with
Emerging Issues Task Force 95-08, "Accounting for Contingent Consideration Paid
to the Shareholders of an Acquired Company in a Purchase Business Combination,"
instead of as additional purchase consideration at the time of the acquisition
because many of the former owners to whom payments are payable must remain
employed by AppNet in order for them to receive these payments. The amount of
this compensation expense recorded periodically will fluctuate based on the
probability of achievement of the operating targets by each of the acquired
businesses and the market price of our common stock at the end of each reporting
period. This expense is recognized over the period during which these former
stockholders must remain employed by us to be eligible to receive the contingent
payments. The remaining portion of these contingent payments that is payable to
former stockholders who are not our employees or who are not required to remain
employed by us during the contingent payment period will be recorded as
additional goodwill when such targets are met. If all of the operating targets
are fully met, the aggregate amounts of compensation expense and additional
goodwill that will be recognized will be approximately $33.0 million and
$11.9 million, respectively, assuming for all shares issued in connection with
these contingent payments a price per share of our common stock of $26.25 in the
case of New Media Publishing, which was the last reported sale price of our
common stock on

                                       28
<PAGE>
the measurement date of October 1, 1999, and a price per share of $50.00 in the
case of the other companies, which is the price to the public in this offering.
The compensation expense will be recognized during 1999 and 2000.

    A compensation charge of $2.5 million was recorded in June 1999 within
stock-based and acquisition-related compensation upon completion of our initial
public offering in connection with the termination of our right to repurchase
shares of our common stock from Mr. Bajaj. The amount of the compensation charge
was determined based on the number of common shares that we could have
repurchased from him and the difference between $0.3007 and the $12.00 per share
initial public offering price of our common stock. In addition, an interest
charge of approximately $1.1 million related to the beneficial conversion of
convertible notes was recorded upon completion of our initial public offering.

    Operating results may fluctuate from quarter to quarter and from year to
year based on such factors as the number, size, type and profitability of
projects in which we are engaged. Other factors that could cause our quarterly
results to fluctuate include:

    - effectiveness of integrating acquisitions with existing operations;

    - our ability to attract, train and retain skilled management, technical and
      creative personnel;

    - the entrance of new competitors; and

    - timing and size of acquisition-related compensation charges which
      fluctuate based on the market price of our stock and the level of
      achievement of the agreed upon operating targets.

APPNET PRO FORMA RESULTS OF OPERATIONS

    The pro forma statement of operations for the year ended December 31, 1998
gives effect to the 12 acquisitions we made in 1998 and 1999, GTCR's investment
in AppNet and our June 1999 initial public offering as if these transactions had
occurred on January 1, 1998. The pro forma statement of operations for the nine
months ended September 30, 1999 gives effect to the acquisitions we made in 1998
and 1999 and our June 1999 initial public offering as if these transactions had
occurred on January 1, 1998. Our pro forma nine month and annual results may not
be indicative of future operations as a result of our continued integration of
acquired companies and the development of our corporate infrastructure.

NINE MONTHS ENDED SEPTEMBER 30, 1999

    REVENUES.  Pro forma revenues for the nine months ended September 30, 1999
were $77.4 million.

    COST OF REVENUES.  For the nine months ended September 30, 1999, cost of
revenues was $43.9 million, or 57% of pro forma revenues.

    SELLING AND MARKETING.  Pro forma selling and marketing expenses for the
nine months ended September 30, 1999 were $6.0 million, or 8% of pro forma
revenues.

    GENERAL AND ADMINISTRATIVE.  Pro forma general and administrative expenses
were $24.0 million for the nine months ended September 30, 1999 or 31% of pro
forma revenues.

    STOCK-BASED AND OTHER ACQUISITION-RELATED COMPENSATION.  For the nine months
ended September 30, 1999, pro forma stock-based and other acquisition-related
compensation was $11.3 million. This amount was computed as if the 1999
acquisitions had occurred on January 1, 1998 and based on the assumption that
operating targets of the entities we acquired in 1998 and 1999 will be fully
met. It was also based on a price per share of our common stock of $26.25 in the
case of New Media Publishing, which was the last reported sale price of our
common stock on the measurement date of October 1, 1999, and a

                                       29
<PAGE>
price per share of $50.00 in the case of the other companies, which is the price
to the public in this offering.

    DEPRECIATION AND AMORTIZATION.  Pro forma depreciation and amortization for
the nine months ended September 30, 1999 was $38.2 million, of which
$36.3 million represents amortization of intangible assets.

    INTEREST EXPENSE.  For the nine months ended September 30, 1999, pro forma
interest expense was $1.9 million, the majority of which is a result of the
financing of acquisitions. We expect to repay existing borrowings under our
credit facilities with a portion of the proceeds from this offering which would
have reduced interest expense on a pro forma as adjusted basis to $1.7 million.

YEAR ENDED DECEMBER 31, 1998

    REVENUES.  Pro forma revenues for the year ended December 31, 1998 were
$69.2 million. This amount consists primarily of revenues from fees for
professional services. We also generated revenues from fees for outsourcing
services; the amount of these fees represented a small portion of our revenues
for this period.

    COST OF REVENUES.  For the year ended December 31, 1998, pro forma cost of
revenues was $41.9 million, or 61% of revenues.

    SELLING AND MARKETING.  Pro forma selling and marketing expenses were $3.3
million for the year ended December 31, 1998, or 5% of revenues.

    GENERAL AND ADMINISTRATIVE.  For the year ended December 31, 1998, pro forma
general and administrative expenses were $19.0 million, or 28% of revenues.

    STOCK-BASED AND OTHER ACQUISITION-RELATED COMPENSATION.  Pro forma
stock-based and other acquisition-related compensation for the year ended
December 31, 1998 was $23.1 million. This amount represents an accrual for the
estimated amount of the cash and stock-based contingent consideration to be paid
to former owners of five of our acquired businesses, New Media Publishing,
Sigma6, Salzinger & Company, Internet Outfitters and TransForm IT, during the
12-month period following acquisition. The amount is based on assumptions that
operating targets will be fully met and that the fair market value of our common
stock is $26.25 in the case of New Media Publishing, which was the last sale
price of our common stock on the measurement date of October 1, 1999, and a
price per share of $50.00 in the case of the other companies, which is the price
to the public in this offering.

    DEPRECIATION AND AMORTIZATION.  For the year ended December 31, 1998, pro
forma depreciation and amortization was approximately $60.3 million, the
majority of which represents amortization expense of our intangible assets.

    INTEREST EXPENSE.  Pro forma interest expense for the year ended
December 31, 1998 was $1.0 million.

    OTHER EXPENSE, NET.  For the year ended December 31, 1998, pro forma other
expense includes a charge of $0.3 million related to the refinancing of our
credit facilities during 1998 and the write-off of approximately $0.3 million
related to an investment in a joint venture that was deemed to have no value due
to the failure of the venture to generate a customer base and to generate
sufficient revenues to cover operating expenses, which resulted in the
abandonment of the operations of the venture.

    INCOME TAXES.  Pro forma income tax benefit for the year ended December 31,
1998 was $0.1 million. The effective income tax rate of 0.1% was lower than the
blended federal and statutory rate primarily as a result of amortization of a
portion of our intangible assets which are not deductible for

                                       30
<PAGE>
income tax purposes and the recognition of a valuation allowance in accordance
with generally accepted accounting principles.

APPNET HISTORICAL RESULTS OF OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 1999 COMPARED TO THE NINE MONTHS ENDED
  SEPTEMBER 30, 1998

    REVENUES.  Revenues for the nine months ended September 30, 1999 increased
$71.3 million to $74.8 million from $3.5 million for the nine months ended
September 30, 1998 due to acquisitions we made during the second half of 1998
and the first quarter of 1999, as well as internal growth.

    COST OF REVENUES.  Cost of revenues for the nine months ended September 30,
1999 increased $38.9 million to $42.2 million from $3.3 million for the nine
months ended September 30, 1998. The increase in cost of revenues was primarily
driven by an increase in average billable headcount resulting from the
acquisitions that occurred during 1998 and 1999, as well as internal growth.

    OPERATING EXPENSES.  Operating expenses for the nine months ended
September 30, 1999 increased $83.6 million to $87.8 million from $4.2 million
for the nine months ended September 30, 1998. The increase in operating expenses
for the nine months ended September 30, 1999 was attributable primarily to an
increase in selling and marketing, general and administrative, and stock-based
and other acquisition-related compensation expenses as well as depreciation and
amortization expenses.

    SELLING AND MARKETING.  Selling and marketing expenses for the nine months
ended September 30, 1999 increased $5.6 million to $5.8 million from
$0.2 million for the nine months ended September 30, 1998. As a percentage of
revenues, selling and marketing expenses for the nine months ended
September 30, 1999 increased to 8% from 6% for the nine months ended
September 30, 1998. The increase in selling and marketing expenses is a result
of the acquisitions we completed during the second half of 1998 and the first
quarter of 1999 and the development of our corporate sales and marketing staff.

    GENERAL AND ADMINISTRATIVE.  General and administrative expenses for the
nine months ended September 30, 1999 increased $21.0 million to $23.3 million
from $2.3 million for the nine months ended September 30, 1998. The increase in
general and administrative expenses is a result of the build up of corporate
infrastructure through 1998 and into 1999 to assist in the integration of
acquisitions. As a result of anticipated additional hiring costs associated with
the integration of the businesses we acquired in the second half of 1998 and the
first quarter of 1999, our general and administrative expenses are expected to
continue to increase, although they may decline as a percentage of our revenues.
As a percentage of revenue, general and administrative expenses for the nine
months ended September 30, 1999 decreased to 31% from 67% for the nine months
ended September 30, 1998.

    STOCK-BASED AND OTHER ACQUISITION-RELATED COMPENSATION.  Stock-based and
other acquisition-related compensation expenses for the nine months ended
September 30, 1999 was $15.7 million. Approximately $12.6 million is
attributable to the contingent payments due to former shareholders of businesses
acquired that must remain employed by AppNet to receive the contingent payments.
The amount is computed based on the fair market value of our common stock at the
end of the reporting period and assumes that operating targets will be fully
met. The amount of this compensation expense may fluctuate in future periods
based on the probability of achievement of the operating targets by each of the
acquired businesses and the market price of our common stock at the end of each
reporting period. In addition, we recognized a compensation charge of
$2.5 million during the nine months ended September 30, 1999, recorded as
stock-based and acquisition-related compensation expense, upon completion of the
initial public offering in connection with the termination of our right to
repurchase shares of our common stock from one of our officers. The amount of
the compensation charge was determined based on the number of common shares that
we could have repurchased from

                                       31
<PAGE>
the officer and the difference between $0.3007, the repurchase price, and the
initial public offering price of $12.00 per share.

    DEPRECIATION AND AMORTIZATION.  Depreciation and amortization expense for
the nine months ended September 30, 1999 increased $41.2 million to
$42.9 million from $1.7 million for the nine months ended September 30, 1998.
The increase is primarily due to the amortization of intangible assets resulting
from the acquisitions made during the second half of 1998 and the first quarter
of 1999. Our goodwill and related amortization may increase in future periods if
AppNet is required to pay additional consideration for its acquisitions based on
attainment of certain operating targets.

    INTEREST EXPENSE.  Interest expense for the nine months ended September 30,
1999 increased $3.6 million to $3.9 million from $0.3 million for the nine
months ended September 30, 1998 due to additional borrowings under our credit
facilities and issuance of notes payable to former owners of businesses acquired
during the second half of 1998 and the first quarter of 1999. In connection with
our initial public offering, we recorded an interest charge of $1.1 million
during the nine months ended September 30, 1999 related to beneficial conversion
rights of notes which contained conversion features at a discount from the
initial public offering price of the common stock.

    OTHER EXPENSE, NET.  Other expense of $0.6 million for the nine months ended
September 30, 1999 includes the write-off of deferred financing costs in
connection with the refinancing of our credit facilities during the period.
During the nine months ended September 30, 1998, other expense of $0.4 million
included the write-off of approximately $0.3 million related to an investment in
a joint venture that was deemed to have no value due to the failure of the
venture to generate a customer base and to generate sufficient revenues to cover
operating expenses, which resulted in the abandonment of operations of the
venture.

    INCOME TAX PROVISION.  The provision for income taxes was $0.3 million for
the nine months ended September 30, 1999 and is related to state income taxes.

YEAR ENDED DECEMBER 31, 1998 COMPARED TO SOFTWARE SERVICES CORPORATION
(PREDECESSOR) FOR THE YEAR ENDED DECEMBER 31, 1997

    REVENUES.  Revenues for the year ended December 31, 1998 were $17.7 million
as compared with revenues of $13.3 million of Software Services Corporation for
the year ended December 31, 1997. The difference of $4.4 million is a result of
the acquisitions by AppNet during 1998, as well as internal growth which
increased headcount and operations.

    COST OF REVENUES.  For the year ended December 31, 1998, cost of revenues of
AppNet was $11.7 million as compared to the cost of revenues of Software
Services Corporation for the year ended December 31, 1997 of $8.4 million. The
change of $3.3 million was primarily driven by the increase in billable
headcount resulting from the acquisitions that occurred during 1998 and internal
growth.

    SELLING AND MARKETING.  Selling and marketing expenses for the year ended
December 31, 1998 were $1.0 million as compared to $1.0 million for Software
Services Corporation for the year ended December 31, 1997.

    GENERAL AND ADMINISTRATIVE.  General and administrative expenses of AppNet
were $6.5 million for the year ended December 31, 1998 as compared to
$3.0 million of Software Services Corporation for the year ended December 31,
1997. The difference is primarily a result of the acquisitions that occurred
during 1998.

    STOCK-BASED AND OTHER ACQUISITION-RELATED COMPENSATION.  For the year ended
December 31, 1998, stock-based and other acquisition-related compensation of
AppNet was $1.2 million, which represents

                                       32
<PAGE>
an accrual for the estimated amount of cash and stock-based contingent
consideration to be paid to former stockholders of acquired businesses.

    DEPRECIATION AND AMORTIZATION.  For the year ended December 31, 1998,
depreciation and amortization of AppNet was $10.2 million as compared with
$0.3 million for the year ended December 31, 1997. The change is primarily a
result of the amortization of intangible assets recorded by AppNet in connection
with the acquisitions made in 1998.

    INTEREST EXPENSE.  Interest expense of AppNet for the year ended
December 31, 1998 was $1.1 million that primarily resulted from the interest on
the outstanding balance on the credit facility during the period.

    OTHER EXPENSE, NET.  Other expense of $0.7 million includes a charge of
$0.3 million related to the refinancing of our credit facilities in 1998. Other
expense also includes the write-off of $0.3 million related to an investment in
a joint venture that was deemed to have no value due to the failure of the
venture to generate a customer base and to generate sufficient revenues to cover
operating expenses, which resulted in the abandonment of the operations of the
venture.

    INCOME TAXES.  Income tax benefit for the year ended December 31, 1998 was
$0.2 million. The effective income tax rate of 1% was lower than the blended
federal and state statutory rate primarily as a result of amortization of a
portion of our intangible assets which are not deductible for income tax
purposes and the recognition of a valuation allowance in accordance with
generally accepted accounting principles.

SOFTWARE SERVICES CORPORATION (PREDECESSOR)

PERIOD ENDED AUGUST 24, 1998 COMPARED TO THE YEAR ENDED DECEMBER 31, 1997

    REVENUES.  Revenues for the period ended August 24, 1998 were
$10.8 million, compared to $13.3 million for the year ended December 31, 1997.
The decrease is primarily due to the fact that we are comparing a 12-month
period to an eight-month period, offset by increased activity in SSC's technical
consulting group.

    COST OF REVENUES.  Cost of revenues for the period ended August 24, 1998 was
$7.4 million, compared to $8.4 million for the year ended December 31, 1997. The
amount as a percentage of revenues remained relatively consistent between the
respective periods.

    OPERATING EXPENSES.  Total operating expenses for the period ended
August 24, 1998 were $5.3 million, compared to $4.4 million for the year ended
December 31, 1997, representing an increase of $0.9 million. The increase is a
result of a $2.7 million stock-based and acquisition-related compensation charge
incurred in connection with the acquisition of SSC by AppNet. The offsetting
decrease is a result of the decrease in selling and marketing and general and
administrative expenses of $1.6 million as larger projects required less overall
support.

    INCOME TAXES.  An income tax benefit of $0.6 million was recorded for the
period ended August 24, 1998, compared with an income tax provision of
$0.4 million for the year ended December 31, 1997 based on the income (loss)
before income taxes for the respective period.

YEAR ENDED DECEMBER 31, 1997 COMPARED TO THE YEAR ENDED DECEMBER 31, 1996

    REVENUES.  Revenues for the year ended December 31, 1997 were
$13.3 million, compared to $11.8 million for the year ended December 31, 1996.
The increase of $1.5 million is a result of an increase in the number of
projects completed and amount of professional services rendered during 1997.

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    COST OF REVENUES.  Cost of revenues for the year ended December 31, 1997 was
$8.4 million, compared to $7.7 million for the year ended December 31, 1996. The
amount as a percentage of revenues remained substantially consistent.

    OPERATING EXPENSES.  Total operating expenses for the year ended
December 31, 1997 were $4.4 million, compared to $4.0 million for the year ended
December 31, 1996, representing an increase of $0.4 million. The increase is a
result of the overall increase in general and administrative expenses for the
year ended December 31, 1997.

    INCOME TAXES.  An income tax provision of $0.4 million was recorded for the
year ended December 31, 1997, compared with a provision of $0.1 million for the
year ended December 31, 1996. The increase is a result of the increase in income
before income taxes for the respective period.

LIQUIDITY AND CAPITAL RESOURCES

    At September 30, 1999, we had approximately $3.2 million in cash and cash
equivalents. AppNet has financed its operations and acquisitions primarily
through the issuance of common stock, borrowings under credit facilities and the
issuance of preferred stock. For the year ended December 31, 1998, cash used in
operations was $2.6 million and $71.7 million was used in investing activities.
For the nine months ended September 30, 1999, cash used in operating activities
was $4.0 million and cash used in investing activities was $32.4 million. The
principal use of cash in investing activities was to finance acquisitions. As
AppNet continues to grow its business and integrate the businesses it has
acquired, AppNet expects to use cash from operations to fund these activities.

    Net cash provided by financing activities was $76.7 million and $37.1
million during the year ended December 31, 1998 and the nine months ended
September 30, 1999, respectively. We received proceeds from net borrowings under
our credit facilities of $37.5 million during the year ended December 31, 1998.
In addition, we received $36.3 million and $3.0 million as consideration for the
issuance of our preferred and common stock, respectively, during the year ended
December 31, 1998. Additionally, we received $7.0 million during the nine months
ended September 30, 1999 as consideration for the issuance of preferred stock.

    In connection with our initial public offering, we also issued 4,936,808
shares of common stock in exchange for 45,430 shares of Class A Preferred Stock
and 11,576 shares of Class B Preferred Stock, including accrued dividends, at an
exchange rate based on our June 1999 initial public offering price of $12.00 per
share. We also issued 123,210 shares of common stock on conversion of promissory
notes of approximately $1.0 million plus accrued interest at a conversion price
of $8.55 per share and issued 75,129 shares of common stock on conversion of
promissory notes of approximately $0.7 million plus accrued interest at a
conversion price at 80% of our June 1999 initial public offering price of $12.00
per share.

    In connection with five of our acquisitions, LOGEX International, Century
Computing, Incorporated, Research & Planning, Inc., The Kodiak Group and i33
communications corp., we issued notes to the former owners some of which are
convertible into shares of our common stock. The balance of the notes at
September 30, 1999 was approximately $13.8 million, $9.3 million of which is
convertible into shares of our common stock. These notes have varying
maturities, from October 1999 through April 2003, and bear interest at rates
between 4.33% and 8.0% as of September 30, 1999.

    At December 31, 1998, our revolving credit facilities provided for
borrowings up to $40 million. In January 1999, we replaced these facilities with
two new revolving credit facilities which provided for up to $66 million in
borrowings, $40 million of which was guaranteed by an affiliate. Upon completion
of our initial public offering, we terminated the $40 million credit facility
and amended the $26 million credit facility to provide for maximum aggregate
revolving borrowings of up to $20 million. The revolving credit facility will
expire on August 24, 2001. The credit facility bears interest, at our option,

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at LIBOR or the lenders' prime rate plus an applicable margin based on our
operating performance. The credit facility is secured by all of our assets,
including all of the capital stock of our subsidiaries, and contains various
restrictive covenants that, among other things, require us to maintain specified
financial ratios and levels of working capital and restrict us from paying
dividends to our common stockholders. At September 30, 1999, approximately
$11.8 million remained available for borrowing under our credit facility based
on the level of financial ratios, as set forth in the credit facility.

    We plan to use the proceeds of this offering to repay all outstanding
borrowings under our credit facility which were $3.7 million as of
September 30, 1999.

    AppNet's capital expenditures for 1998 were approximately $1.2 million.
Historically, capital expenditures have been used to make leasehold improvements
to AppNet's leased office space and to purchase computer hardware and software
and furniture and fixtures. AppNet does not have any material commitments for
capital expenditures for the foreseeable future. However, AppNet does plan to
make capital expenditures, which may include office space, over the next two
years to further develop our electronic commerce outsourcing services.

    During the period from the consummation of this offering through
November 2000, we may be required to make contingent payments to former owners
of four of the businesses we acquired, Sigma6, Salzinger & Company, Internet
Outfitters and TransForm IT. These contingent payments are payable in cash and
stock, in one case at the option of the former owners. The amount of these
payments will depend on the level of achievement of the operating targets and
the market price of our common stock. The majority of the former owners must
remain employed by us in order to remain eligible to receive these payments. The
maximum aggregate amount of the cash portion of these payments, assuming the
operating targets are fully met, is approximately $11.5 million.

    In connection with our acquisition of New Media Publishing, contingent
purchase payments based upon the achievement of certain operating targets during
New Media Publishing's 12 months ended October 1, 1999 are payable in
January 2000. Based on the preliminary results of New Media Publishing's
operating performance during the applicable period, we expect to pay contingent
consideration of approximately $8.4 million in cash and 654,971 shares of our
common stock.

    Based upon current expectations, we believe amounts which may be borrowed
under our credit facility and cash flow from operations will be adequate for us
to meet our capital requirements, to finance the cash portion of our contingent
payments and pursue our business strategy for the next 18 months. To the extent
AppNet is unable to fund its operations from cash flows and existing credit
facilities during or following the next 18 months, it may need to obtain
financing from external sources either by issuing additional equity or incurring
additional indebtedness.

RECENT ACCOUNTING PRONOUNCEMENTS

    In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
"Accounting for Derivatives and Hedging Activities", which establishes
accounting and reporting standards for derivative instruments, including
derivative instruments embedded in other contracts, and for hedging activities.
SFAS No. 133, as amended, is effective for all fiscal quarters of fiscal years
beginning after June 15, 2000. We have not yet determined whether the adoption
of SFAS No. 133 will have a material effect on our results of operations,
financial position or cash flows.

YEAR 2000

    We have completed an assessment of our Year 2000 readiness and have made
substantial progress in making our systems Year 2000 compliant. The risks posed
by the Year 2000 issue could adversely affect our business in a number of
significant ways. Many of our clients and potential clients maintain their
operations on systems that could be impacted by Year 2000 problems. If our
clients fail to ensure

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their systems are Year 2000 compliant and Year 2000 problems materially
adversely affect them, our business could be adversely affected, particularly if
demand for our services declines as companies spend their resources to upgrade
their computer systems. We rely on our suppliers for hardware, software and
services. Our business could be adversely affected if we cannot obtain products,
services or systems that are Year 2000 compliant when we need them. We also
depend on the availability of the Internet infrastructure to conduct our
business and provide services to our clients. Disruptions in the Internet
infrastructure arising from Year 2000 problems could materially adversely affect
our business, financial condition and results of operations. In addition, our
solutions are sometimes dependent upon third-party products and components.
Failure of a third party whose products or services we employ to adequately
address Year 2000 issues could result in our involvement in litigation
concerning our products and services or those of a third party. Futhermore,
because we provide computer-related services, the risk we will be involved in a
lawsuit relating to Year 2000 issues is likely to be greater than that of
companies in other industries. We sometimes provide express warranties to
clients that our work is Year 2000 compliant.

    We have received assurances from all of our major suppliers that they are
Year 2000 compliant. We have established a Year 2000 Executive Steering
Committee, appointed a Year 2000 Compliance Program Manager and adopted a formal
compliance program to oversee and coordinate our Year 2000 compliance efforts
throughout our organization. This program is designed to ensure consistency and
minimize the impact of Year 2000 problems on our operations. Our Year 2000
compliance program consists of the following five phases: awareness, assessment,
remediation, testing and implementation. We have completed the awareness and
assessment phases of our Year 2000 compliance program. We estimate that we are
approximately 90% complete in our Year 2000 remediation efforts across the
entire organization. We have completed our testing and implementation phases at
a number of our locations and have begun this process at several others.

    In the event we do not complete the phases of our program, we may fail to
meet contractual obligations, provide adequate service or meet customer
requirements. The result of such failures could subject us to litigation for
which the amount of potential liability and lost revenue cannot be reasonably
estimated at this time.

    Our costs in connection with Year 2000 compliance to date have been
approximately $0.4 million. At this time, we estimate the potential additional
costs of becoming Year 2000 compliant to be between $0.2 million and $0.4
million, which includes the cost to replace hardware and software, outside
consulting services and some internal labor costs. However, as we continue to
implement our Year 2000 compliance program, these cost estimates may need to be
significantly revised, which could have a material adverse effect on our
business, financial condition or results of operations.

    As part of our plan to integrate the back-office functions of the businesses
we have acquired, we are implementing new, uniform internal information systems,
such as general ledger, billing, accounts payable and payroll, throughout our
organization. Although we have received assurances from our vendors that these
new systems are Year 2000 compliant, our internal systems may experience
operational difficulties because of undetected errors or defects in the
technology used.

    If we fail to address a Year 2000 compliance problem in one of our systems,
the result could be a failure or interruption of normal business operations. We
believe that our Year 2000 compliance program, when fully implemented, should
minimize the risk of significant interruptions to our operations. Currently, we
do not have an expected completion date for our compliance program. At this
point, we believe that the most reasonably likely worst case scenario may
involve circumstances we do not directly control, such as:

    - Our suppliers may provide inaccurate or misleading information to us with
      respect to their products' and/or services' Year 2000 compliance. If we
      had to replace every information

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<PAGE>
      technology system developed by a third party throughout our organization,
      we estimate the cost to be $7.2 million and that it would result in
      significant interruption of our operations.

    - Our clients may fail to ensure that their systems are Year 2000 compliant,
      which may cause the Year 2000 problem to materially adversely affect them.
      If this did occur, demand for our services could decline as companies
      spend their resources to upgrade their computer systems.

    - The failure of third-party products and components upon which our
      solutions are sometimes dependent could result in our involvement in
      litigation concerning our solutions or the products and components of
      third parties. We cannot accurately predict the outcome of any legal
      claims in which we may become involved as a result of such failure.

    - Critical utilities such as electrical power and telecommunications may be
      interrupted for a significant and protracted period of time. We have taken
      steps to mitigate these risks by installing back-up power supplies and
      redundant telecommunications. However, we could still be adversely
      impacted by failures at companies that provide us with Internet services.

    We currently do not have contingency plans in place in the event we do not
complete all phases of our Year 2000 compliance program. If we do not develop
our contingency plans, our potential Year 2000 liabilities may be materially
increased.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

    AppNet is exposed to market risk related to changes in interest rates on its
long-term credit facility. AppNet is able to manage its interest rate risk to
some degree through management's option to select the factor used to determine
its interest rate. AppNet's credit facility is a variable rate credit facility.
The credit facility bears interest, at our option, at LIBOR or the lenders'
prime rate plus an applicable margin based on our operating performance. The
balance outstanding as of December 31, 1998 was $37.5 million, of which $19.7
million bore interest at a rate of 8.25% and $17.8 million bore interest at a
rate of 7.75%. Assuming the amount outstanding at September 30, 1999, which was
$3.7 million, was outstanding for the entire year, we estimate that a one
percentage point change to the weighted average interest rate at September 30,
1999 (9.75%) would equal a $0.1 million change in interest expense. If the
interest rate increased, the net loss attributable to common stockholders for
the nine months ended September 30, 1999 would have increased by $0.1 million to
$62.2 million.

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                                    BUSINESS

OVERVIEW

    AppNet provides Internet and electronic commerce professional services and
solutions to medium-sized and large businesses. We develop electronic commerce
solutions that improve communication and commerce between businesses and
consumers as well as among businesses and their trading partners. We focus on
maximizing the opportunities presented by the Internet and electronic commerce
to enhance all aspects of our clients' operations, from the front end of their
business, creative Website design, to the back end, back-office integration of
existing systems and electronic commerce outsourcing, creating an end-to-end
solution. We were formed in 1997 as a Delaware corporation.

    Our professional services include:

    - strategic consulting;

    - interactive media services such as creative Website design and
      development, branding, which is the creation of a unique corporate
      identity for a client and its products, media planning and buying;

    - Internet-based application development, which is the development of
      software applications that are capable of running on the Internet and are
      written in languages such as Java, C++ and Visual Basic;

    - electronic commerce systems integration, which is the integration of
      electronic commerce systems, which are systems that automate the receipt,
      processing and delivery of transaction data and other information, with
      other corporate software and computer-based applications; and

    - electronic commerce outsourcing, which is the performance of electronic
      commerce services that would otherwise be handled by the client's internal
      staff using the client's resources.

    None of these services is more critical to our business operations and
revenues than the other services.

INDUSTRY BACKGROUND

    The rapid growth in the use of the Internet and electronic commerce has
revolutionized the way businesses operate and interact with their customers and
trading partners. The Internet and electronic commerce have created new channels
of communication and distribution which raise the level and increase the speed
of interaction between a business and its trading partners and customers. The
demand for Internet and electronic commerce services is increasing as more and
more companies develop on-line businesses and employ Internet and electronic
commerce solutions.

    The Internet enables businesses to establish an on-line presence through
which they can offer new and complementary products and services to new and
existing markets. As a result, businesses have been able to create new sources
of revenue, improve customer care and retention and streamline their internal
operations by processing orders and payments on-line.

    To date, businesses have primarily focused on using Internet and electronic
commerce solutions to improve business-to-consumer relationships. However,
businesses are increasingly using the Internet and electronic commerce to open
cost-effective, reliable, highly efficient channels of communication and
commerce with their suppliers and distributors. Internet and electronic commerce
solutions can improve the way businesses interact with their trading partners by
linking businesses' back-office systems through electronic data interchange, or
EDI, and the Internet to trading partners and suppliers. EDI is a process
through which data is transferred from a paper format into a standard electronic
format and electronically transmitted to trading partners over a private network
or the Internet. Businesses are increasingly finding that they can reliably and
cost-effectively manage a high volume of transactions on a real-time basis using
EDI and the Internet. In addition, by using EDI and the Internet for
communication with both consumers and trading partners, businesses are creating
electronically integrated supply chains that significantly improve their
operating efficiency.

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    Businesses are increasingly discovering that implementing Internet and
electronic commerce solutions is necessary to remain competitive and are
demanding end-to-end Internet and electronic commerce solutions that can improve
every aspect of their operations. As a result, technology industry research
firms predict that the market for Internet and electronic commerce services
worldwide will grow significantly over the next few years. International Data
Corp. estimates that this market will increase from $7.8 billion in 1998 to
$78.6 billion by 2003, which represents a compound annual growth rate of 59%.

    Most businesses rely on outside specialists to design and develop Internet
and electronic commerce solutions for a number of compelling reasons. Because
Internet and electronic commerce technologies have developed so rapidly, few
businesses have employees with the advanced skills necessary to effectively
evaluate and implement these technologies successfully. Given the pressure to
get to market quickly, waiting for in-house employees to be trained to use these
technologies is not practicable. In addition, hiring trained professionals is
difficult because they are in great demand. At the same time, as business
challenges grow increasingly complex, so must the Internet and electronic
commerce solutions required to address them. Given the significant cost to
design, develop, implement and manage Internet and electronic commerce
solutions, businesses cannot afford to expend resources developing solutions
themselves. Hiring a firm that provides a comprehensive range of Internet and
electronic commerce professional services is often the most efficient and
cost-effective solution for many companies.

THE APPNET SOLUTION

    Our goal in founding AppNet was to address the growing need for end-to-end
Internet and electronic commerce solutions. We offer a comprehensive range of
services involving the design, development, implementation and management of
Internet and electronic commerce solutions that facilitate and promote
communication and commerce between businesses and consumers as well as among
businesses and their trading partners. Key elements of the AppNet solution are:

    - END-TO-END SERVICE OFFERING

    We can provide clients with end-to-end Internet and electronic commerce
solutions. Our clients recognize significant cost and time savings and receive
integrated solutions because they can obtain all of the Internet and electronic
commerce professional services they need from one company.

    - UNIQUE ELECTRONIC COMMERCE OUTSOURCING SERVICES

    We offer our clients an extensive range of electronic commerce outsourcing
services as part of our overall service offering. We perform electronic commerce
services that would otherwise be handled by the client's internal staff using
the client's resources. Our business-to-business outsourcing services include
processing transactions for our clients using our resources and infrastructure.
We also operate electronic data interchange programs through which businesses
and their trading partners exchange information electronically. We monitor and
analyze the transactions processed through these programs. Our
business-to-consumer outsourcing services include managing on-line stores,
processing transactions, managing and hosting Websites and operating and
managing electronic commerce systems. Our Website managing and hosting services
include adding and editing material on a Website and making sure the Website is
operating according to its specifications. Our outsourcing services include
maintaining security at a Website by ensuring only authorized users have access
to the Website. We also store data that is generated by activity at the Website.
Clients who take advantage of these services get to market quickly; do not have
to make the significant financial and technological investments required to
effectively build and manage their own infrastructures; receive reliable and
secure services; and can focus their attention and resources on their core
competencies.

    - ABILITY TO SOLVE INCREASINGLY COMPLEX BUSINESS PROBLEMS

    Our business-level and process-level strategic consulting services help our
clients solve their increasingly complex business problems with sophisticated,
vendor-neutral Internet and electronic commerce solutions. We employ
business-level strategic consulting services to develop and redefine

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<PAGE>
clients' business models to incorporate Internet and electronic commerce
strategies. We employ process-level strategic consulting services to improve the
business processes of clients who have already incorporated Internet and
electronic commerce strategies into their business models. These services,
together with the knowledge and experience we gain designing, developing,
implementing and managing each electronic commerce solution, enable us to
develop comprehensive strategies for growing on-line ventures, streamlining
on-line marketing and distribution strategies, improving operating efficiencies
and reducing costs.

    - ENHANCED SERVICES THROUGH THE USE OF ADVANCED PROPRIETARY TECHNOLOGIES

    We use advanced proprietary technologies to design and develop more
effective Internet and electronic commerce solutions. ClientLink, a secure
Website we developed that is accessible only by us and our clients, also known
as an extranet, gives our clients on-line access to, and engages their active
participation in, the development of their Internet and electronic commerce
solutions. Within ClientLink, clients can, on a real-time basis, view any
changes that have been made to their solutions, communicate electronically with
project team members and check a calendar for information regarding product
reviews and launches. We use ClientLink to raise the level of interaction
between us and our clients, which, in turn, improves the quality, functionality
and adaptability of the solution we create.

    AdMaximize, our proprietary interactive media service, enables us to
measure, on a real-time basis, a client's return on investment for its on-line
advertising dollars. AdMaximize tracks the performance of ads on the Internet
and collects real-time data on the number of users who click on the ad, the
number of new customers and the amount of sales generated by the ad. Based on
their analysis of this information, clients can make real-time adjustments to
their advertising campaigns to maximize the number of users who visit their
Websites and reduce the costs of acquiring new customers and generating sales.

    As part of the outsourcing services we offer, we utilize proprietary
software, EDI Control/400 and STAR, in order to more effectively manage
electronic data interchange programs that process a high volume of transactions.
EDI Control/400 enables us to monitor and analyze our clients' transactions and
communications with their trading partners with fewer people and higher service
levels. Our client support services team uses STAR, or the Service Tracking and
Reporting System, to log, track and report on all aspects of a transaction.

    - REUSABLE BUSINESS SOLUTIONS

    We have developed reusable business solutions in the process of designing,
developing, implementing and managing end-to-end Internet and electronic
commerce solutions for clients in a number of industries. These reusable
business solutions were developed based on our industry-specific expertise and
utilize reusable software code and content objects. These solutions enable us to
give our clients the benefit of our knowledge and experience in addressing
complex business challenges, develop and implement Internet and electronic
commerce solutions more quickly and efficiently, focus our efforts on
customizing solutions to meet our clients' specific needs and deliver reliable
solutions based on components that have been tested and perfected through
repeated use in other solutions.

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<PAGE>
OUR STRATEGY

    Our goal is to become the most recognized and sought-after provider of
Internet and electronic commerce services to medium-sized and large business
clients. To achieve this goal we plan to:

    - EXPAND CLIENT RELATIONSHIPS

    We plan to cross-sell our comprehensive range of Internet and electronic
commerce professional services to existing clients. We believe that if we
continue to provide sophisticated solutions to our clients:

    - our existing clients will increase the amount, scope and complexity of
      services they obtain from us;

    - we will strengthen our reputation as a creative source for Internet and
      electronic commerce solutions; and

    - we will attract new clients through referral-driven sales.

This strategy should increase our revenue predictability and result in
additional and more extensive engagements with our clients.

    - INCREASE REPEAT AND RECURRING REVENUES

    Our strategy is to increase the proportion of our revenues which represents
repeat business with the same clients as well as the proportion of our recurring
revenues from our electronic commerce outsourcing services. We intend to
generate repeat revenues by cross-selling services and entering into multiple
engagements with our existing clients. In addition, we plan to increase
recurring revenues by selling additional electronic commerce outsourcing
services to our new and existing clients. We charge clients who use our
electronic commerce outsourcing services either a fixed monthly rate or on a per
transaction basis, or both. Our target contract length for electronic commerce
services is one year. Increasing repeat and recurring revenues will enable us to
predict our revenues with greater accuracy and improve our operating margins.

    - BUILD AND ENHANCE COMPLEMENTARY SKILL SETS AND MAINTAIN TECHNOLOGICAL
      EXPERTISE

    Each additional skill set we develop improves our ability to better serve
our existing and future clients. We believe it is imperative for us to stay
abreast of the newest technological developments and evolving service offerings
in order to maintain the high level of quality of our services, increase the
effectiveness of our solutions and attract and retain qualified employees. We
continually research, test and evaluate new Internet and electronic commerce
technologies which we can incorporate into our solutions. Each engagement we
complete broadens our expertise and increases our knowledge, thereby enhancing
our ability to provide the most effective Internet and electronic commerce
solutions.

    - PURSUE CLIENT-DRIVEN GEOGRAPHIC EXPANSION

    We intend to open additional offices both domestically and internationally
in order to better serve clients in locations where we have already attracted
business. This allows us to serve clients locally, cross-sell services to
existing local clients and win more local business. Each new office we have
opened has enhanced our ability to attract and service large clients and to hire
additional staff without relocation burdens. We currently have offices in 15
locations in the U.S., including the metropolitan areas of Boston, Denver,
Detroit, Los Angeles, New York City and Washington, DC.

    - EXPAND AND DEVELOP INDUSTRY-SPECIFIC EXPERTISE

    Through our experience designing, developing, implementing and managing
Internet and electronic commerce solutions for a wide variety of companies, we
have gained significant strategic knowledge and created industry-specific
reusable business solutions. This industry-specific expertise significantly
enhances our ability to help other companies in the same industries successfully
adopt Internet and electronic commerce solutions. To date, we have developed
reusable business solutions for the retail services, financial services,
healthcare, manufacturing and telecommunications industries. We intend to
broaden the range of industries in which we have specialized knowledge and
maximize the benefits to

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our clients of such knowledge by creating additional industry-specific solution
templates and reusable software. We employ strategic consultants, sales,
marketing and technical staff with expertise in industries which we believe can
realize significant benefits from Internet and electronic commerce solutions.
Further developing and strengthening this expertise will increase our knowledge
of industry specific business challenges and increase the industry-targeted
services we can offer, thereby improving our ability to penetrate specific
industries.

    - ATTRACT AND RETAIN A HIGHLY SPECIALIZED WORKFORCE

    We will continue to recruit highly skilled and experienced professionals who
have industry-specific expertise and who are proficient in a broad range of
technological and business skills. We intend to continue to ensure that our
employees have the requisite expertise to provide our clients with a
comprehensive range of Internet and electronic commerce professional services.
We have 16 full-time recruiters and often use recruitment firms as well. We also
attract employees through referral bonus programs and advertising on the
Internet. We plan to retain and motivate our employees by giving them the
opportunity to work with cutting-edge technologies, paying competitive
compensation packages, granting stock options, reimbursing tuition expenses and
encouraging a corporate culture that is results-driven and rewards creativity,
communication and cooperation.

SERVICES

    We offer a comprehensive range of professional services involving the
design, development, implementation and management of end-to-end Internet and
electronic commerce solutions. Our services include strategic consulting,
interactive media services, Internet-based application development, electronic
commerce systems integration and electronic commerce outsourcing, each of which
is described below. Our engagements generally include more than one of these
services.

    -  STRATEGIC CONSULTING

        Our business- and process-level strategic consulting services help our
    clients successfully develop on-line businesses and improve their overall
    business processes. We employ business-level strategic consulting to study
    and analyze our clients' market position, operating requirements, systems
    and capabilities to determine how our clients should use the Internet and
    electronic commerce to accomplish their objectives. We work with clients to
    incorporate Internet and electronic commerce solutions into their businesses
    and assist in developing on-line businesses and on-line marketing
    strategies. We employ process-level strategic consulting with clients that
    have already incorporated Internet and electronic commerce solutions into
    their businesses to assist them in improving their overall business
    processes by incorporating on-line system architecture and design with
    existing Internet and electronic commerce solutions, thereby improving
    operating efficiencies and reducing costs.

    -  INTERACTIVE MEDIA SERVICES

        Our interactive media services include creative Website design and
    development, branding, which is the creation of a unique corporate identity
    for a client and its products, and developing on-line advertising
    strategies. Developing on-line advertising strategies includes media buying
    and planning, on-line ad placement, management, tracking and reporting and
    on-line promotion and campaign development. As part of an on-line
    advertising strategy, we also develop affinity programs that link businesses
    by rewarding one business' clients with products and services of another
    business. These services are designed to maximize our clients' return on
    their investments in on-line businesses by generating and increasing the
    number of visitors to a Website, enhancing user experience and increasing
    the effectiveness of our clients' marketing efforts. We integrate these
    services into our clients' overall solutions.

    -  INTERNET-BASED APPLICATION DEVELOPMENT

        Internet-based application development is the development of software
    applications that are capable of running on the Internet and are written in
    languages such as Java, C++ and Visual

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<PAGE>
    Basic. These services are designed to help our clients rapidly develop
    highly flexible and cost-effective business applications. We develop
    corporate intranets, which are secure Websites accessible only within a
    particular company, and electronic commerce systems and we Web-enable legacy
    systems, which are existing systems, so that they can operate on the
    Internet. We design and develop more effective Internet and electronic
    commerce solutions by giving our clients on-line access to the development
    of their solutions. We design, build and implement solutions that are
    secure, adaptable and easy to use and manage.

    -  ELECTRONIC COMMERCE SYSTEMS INTEGRATION

        Electronic commerce systems integration is the integration of electronic
    commerce systems, which are systems that automate the receipt, processing
    and delivery of transaction data and other information, with other corporate
    software and computer-based applications such as Websites and accounting and
    financial systems. These services are designed to rapidly install and
    integrate our solutions with our clients' existing operations so our
    solutions become an integral part of our clients' critical business systems.
    We install our solution, convert all necessary data, perform acceptance
    testing and put the system into operation. We also integrate the solution
    with back-office existing legacy systems to ensure that each client's
    computer-based applications operate seamlessly and with maximum security.

    -  ELECTRONIC COMMERCE OUTSOURCING

        We perform electronic commerce services that would otherwise be handled
    by the client's internal staff using the client's internal resources. Our
    electronic commerce outsourcing services help clients rapidly launch and
    implement electronic commerce solutions and then cost-effectively manage,
    operate, maintain and continue to develop those solutions. We provide
    business-to-business outsourcing services such as operating electronic data
    interchange programs and transaction processing at our outsourcing center in
    Pittsfield, MA, as well as at our customer's sites. We provide
    business-to-consumer outsourcing services such as managing on-line stores,
    transaction processing, managing and hosting Websites and the ongoing
    management, technical operation, maintenance and development of electronic
    commerce solutions at our outsourcing center in Laurel, MD, as well as at
    our customer's sites.

ELECTRONIC COMMERCE OUTSOURCING CENTERS

    We believe our outsourcing capabilities are a key component of our full
range of Internet and electronic commerce professional service offerings and
differentiate us from our competitors. Outsourcing enables us to effectively
manage, operate and maintain the electronic commerce systems we have developed
for our clients. Fees from outsourcing services currently represent a small
portion of our revenues. However, we expect that demand for outsourcing services
will increase over time as customers recognize that outsourcing is a
cost-effective solution. For example, outsourcing is an attractive choice for
those customers who lack the internal resources required to effectively build
and manage their own infrastructure or their critical business processes and who
are under pressure to get to market quickly.

    At our business-to-business electronic commerce outsourcing center, we
process and manage thousands of transactions among hundreds of trading partners
on a variety of hardware and software platforms, over private networks, and the
Internet. We use EDI Control/400, our administrative software product, to
operate, monitor and analyze electronic data interchange programs through which
businesses and their trading partners exchange information electronically. EDI
Control/400 provides our customers with detailed transaction reporting, on-line
storage of data about the transactions, and multiple levels of security ensuring
only authorized users have access to and can exchange information. At our
business-to-consumer electronic commerce outsourcing center we manage on-line
stores, process transactions and manage and host Websites. Our Website managing
and hosting services include adding and editing material on a Website and making
sure the Website is operating according to its specifications.

                                       43
<PAGE>
    Our outsourcing centers operate seven days a week, 24 hours a day. Our
outsourcing center staff proactively manages and monitors the operation of each
center using network management software, including proprietary technologies we
developed. We collect, process and respond to systems-level event information
and build and maintain a central repository for inventory and asset management
information. In addition, each of our outsourcing centers features multiple
levels of security which we believe protect our clients' private information by
isolating our electronic commerce outsourcing centers from public network
infrastructures.

CLIENTS

    We market our services to medium-sized and large companies from a range of
industries which we believe can benefit from Internet and electronic commerce
solutions. Our engagements vary in scope from strategic consulting assignments
to designing and implementing complex and highly functional intranets and
extranets. Because we can offer every client a complete spectrum of Internet and
electronic commerce professional services, we can customize each of our
engagements to fit a client's specific needs. Two of our clients, Ford and the
U.S. Government, accounted for 15% and 12%, respectively, of our total revenues
for 1998. After giving pro forma effect to the acquisitions we made in 1998 and
1999 as if they had occurred on January 1, 1998, our top ten customers would
have represented approximately 35% of our 1998 pro forma revenues.

    Because of the strategic and competitively sensitive nature of the services
we perform for our clients, in many cases we have agreed to keep our clients'
identities confidential. Set forth below is a partial list of the clients to
whom we have provided services since 1998 that we believe is representative of
our overall client base:

<TABLE>
<S>                                           <C>
RETAIL AND CONSUMER SERVICES                  TELECOMMUNICATIONS AND TECHNOLOGY
Biztravel.com                                 Computer Sciences Corp.
Burton Snowboards                             Ciena
Harmony House                                 Comshare
Hertz                                         Lockheed Martin Integrated Business Solutions
K*B Toys                                      FINANCIAL SERVICES
MANUFACTURING AND INDUSTRIAL                  @rts @lliance
Ciba Specialty Chemicals                      Ford Motor Credit
Dial                                          multex.com
Hyundai                                       Norwest
Johnson Controls                              HEALTHCARE AND PHARMACEUTICALS
NEC                                           Acuson
Norrell                                       Allergan Services
The Electronic Imaging Division of Toshiba    Blue Cross and Blue Shield of Michigan
  America Information Systems, Inc.           Baxter Healthcare
Unilever                                      3M
MEDIA AND ENTERTAINMENT                       GOVERNMENT AND NONPROFIT
Cablevision                                   AAA
Cisneros Group                                INTELSAT
GeoCities                                     NASA
Grey Interactive                              National Library of Medicine
McCann-Erickson                               University of Michigan
Playboy Enterprises                           World Wildlife Fund
</TABLE>

                                       44
<PAGE>
EXAMPLES OF OUR INTERNET AND ELECTRONIC COMMERCE SOLUTIONS

    The following examples illustrate the kinds of Internet and electronic
commerce solutions we have developed for specific clients.

THE ELECTRONIC IMAGING DIVISION OF TOSHIBA AMERICA INFORMATION SYSTEMS, INC.

    Challenge: Design and implement a restricted access dealer extranet system.

    Solution: We developed the community, Web-interface and database elements of
Toshiba's FYI Dealer Extranet, an on-line system for dealers that provides a
common interface in addition to customized information that meets each
individual dealer's requirements. We designed security features which protect
market-sensitive information from unauthorized users. A conditional access
system, driven by a complex database user-authorization scheme, offers multiple
read-and-write user access levels. Employees, dealers and distributors have the
opportunity to build relationships on this Dealer Extranet. This electronic
commerce and informational site is designed to simplify ordering and shipping of
more than 10,000 spare-part SKUs for fax machines and copiers.

BURTON SNOWBOARDS

    Challenge: Design and implement an on-line inventory and supply-chain
management system.

    Solution: We designed and implemented an on-line inventory and supply-chain
management system that Burton management uses to control changing inventory,
manage materials and track product placement. Our solution accommodates multiple
languages and currencies and is able to generate detailed reports. Our solution
is designed to improve Burton's efficiency in managing its inventory and
supply-chain and reducing production overruns and overall costs.

AMERICA ONLINE, INC. OR AOL

    Challenge: Develop a content investment strategy.

    Solution: We helped AOL launch the AOL Greenhouse, a division of AOL
Studios. Our work included assisting the President of AOL Greenhouse to
establish a process for selecting and managing a portfolio of content
investments. We assisted with the development of the division's organizational
structure and portfolio management strategy. AOL invested in Internet companies,
including The Motley Fool, Inc., Hecklers On-Line and iVillage.

RETIRED PERSONS SERVICES, INC. OR RPS

    Challenge: Provide technical assistance to Retired Persons Services, Inc.,
provider of the AARP Pharmacy Service, in the ongoing design, implementation and
management of its on-line pharmacy.

    Solution: RPSPharmacy.com provides AARP members and others with the option
of ordering prescription refills and nonprescription pharmacy products over the
Internet. The on-line pharmacy incorporates features such as health information
to facilitate condition management and product selection, comparison of
brand-name and generic alternatives, information about related products and
special offers, patient profiling for drug utilization review and links to other
sources of health information.

                                       45
<PAGE>
GOVERNMENT TECHNOLOGY SERVICES, INC. OR GTSI

    Challenge: Design and implement an on-line computer store.

    Solution: We designed and implemented an on-line computer store that enables
Federal customers to price and purchase approximately 150,000 computer products
over the Internet. The solution we developed provides customized shopping
experiences for many customers. Using our solution, GTSI hopes to streamline the
purchasing process for its customers.

K*B TOYS

    Challenge: Design, implement and operate an EDI program that would
accurately process and track orders, shipping notices, invoices and other time
sensitive data, including point-of-sale information, to support streamlined
procurement and distribution center operations.

    Solution: We designed and implemented an EDI program for K*B Toys to manage
inventory levels and merchandise replenishment at over 1300 mall-based stores.
Our solution incorporated features such as mapping schemes for translation of
data and network and Internet routing schemes for data delivery. Our solution is
designed to reduce communications costs, improve the efficiency of K*B Toys'
business processes and allow it to focus on its core retailing business.

HARMONY HOUSE

    Challenge: Design and develop an on-line music store which would complement
its 34 retail outlets.

    Solution: We designed and implemented an on-line music store that enables
customers to search for, listen to and purchase music products over the
Internet. Our solution incorporated features such as searchable databases and
music guides, selectable music samples and management features for site update
and promotion and order management. Our solution is designed to build brand
recognition and loyalty and establish an additional distribution channel.

MULTEX.COM

    Challenge: Design and develop a Web-based ad campaign to increase site
traffic and trading volume and decrease the per customer acquisition cost.

    Solution: We crafted a media plan which included the creation of multiple
banner ads. Using our proprietary service, AdMaximize, we served banner ads,
tracked banner ad performance and collected real-time data on click-through,
lead generation, customer acquisition and sales. Based on multex.com's and our
collective analysis of this data, we were able to make real-time adjustments to
multex.com's ad campaign. Our solution is designed to increase overall
membership for multex.com, increase its revenues per new member and decrease
multex.com's cost to acquire new members via the Web.

                                       46
<PAGE>
SALES AND MARKETING

    As of September 30, 1999, we employed 60 full-time sales professionals and
support personnel. Our sales professionals concentrate on our Internet and
electronic commerce professional services to clients in the industries in which
they have extensive expertise.

    Our marketing strategy is to demonstrate to our potential clients the
advantages of Internet and electronic commerce solutions, and our expertise and
success in designing, developing, implementing and managing end-to-end
solutions. In addition, we have retained an outside public relations and
advertising firm to assist us with our marketing efforts on a company-wide
basis. As of September 30, 1999 we employed 24 full-time marketing professionals
and support personnel. Our marketing professionals concentrate on promoting and
enhancing our brand on a nationwide basis.

    In each of our professional services engagements, a client can contract for
the specific services it requires. We bill most of our engagements on a time and
materials basis, although we have entered into several engagements on a
fixed-price basis. Clients who use our electronic commerce outsourcing services
are charged either a fixed monthly rate or on a per transaction basis, or both.

COMPETITION

    The markets for Internet and electronic commerce professional services are
relatively new, intensely competitive, quickly evolving and subject to rapid
technological change. We expect competition to continue and intensify in the
foreseeable future.

    Our competitors can be divided into several groups:

    - Internet professional services providers, such as Agency.com, iXL,
      Proxicom, Razorfish, Scient, US Interactive, USWeb and Viant;

    - large information technology consulting services providers, such as
      Andersen Consulting, Cambridge Technology Partners, CSC, EDS, IBM and
      Sapient;

    - interactive advertising agencies, such as Darwin Digital, Giant Step, Grey
      Interactive, Modem Media . Poppe Tyson and Thunderhouse;

    - electronic commerce software and service providers, such as BroadVision,
      Harbinger, Open Market and Sterling Commerce; and

    - Internet access and service providers, such as Abovenet, Exodus and
      Frontier/Global.

    We believe we can distinguish ourselves from our competitors by offering our
clients end-to-end Internet and electronic commerce solutions. We believe we can
compete effectively on the basis of our comprehensive range of services,
technical expertise, creative talent, brand or name recognition and the speed,
reliability and price of the services we provide. However, our competitors have
also begun to offer a variety of Internet and electronic commerce professional
services, rather than specialize in one area, or have announced their intention
to do so. These companies may continue to expand their operations so that they
offer a full range of business-to-business and business-to-consumer Internet and
electronic commerce professional services and products. Some of our competitors,
IBM, USWeb and EDS, currently provide all of the services that we provide.

    There are relatively low barriers to entry into our business. We do not own
any patent technology that precludes or inhibits competitors from entering our
markets. The costs to develop and provide Internet or electronic commerce
professional services are low. Therefore, we expect to continue to face
additional competition from new entrants into our markets. Many of our
competitors have greater financial, technical, marketing and public relations
resources than AppNet. A number of our outsourcing competitors have made
substantial capital investments in their infrastructure. Because many of our
competitors have longer operating histories than we do, many of them also have
greater brand

                                       47
<PAGE>
or name recognition, larger client bases and longer client relationships on
which they can rely for generating business.

ACQUIRED COMPANIES

    Our goal in founding AppNet was to build a company that could offer a
comprehensive range of Internet and electronic commerce professional services.
We began by developing a detailed strategic plan that identified the specific
professional services that are required to provide clients with end-to-end
solutions. These services were strategic consulting, interactive media services,
Internet-based application development, electronic commerce systems integration
and electronic commerce outsourcing. We then identified a group of companies
that excelled in providing services in one or more of these professional
services areas. After reviewing and evaluating over 100 companies, we ultimately
acquired a set of companies that we believe fit together strategically and
culturally and that, when integrated with one another, could design, develop,
implement and manage end-to-end solutions.

    ARBOR INTELLIGENT SYSTEMS, INC.  We acquired substantially all of the assets
of Arbor Intelligent Systems on March 12, 1998. Arbor specialized in
Internet-based applications development, providing object-oriented development
services to our customers. It had approximately 30 consulting professionals as
of the date of the acquisition. We paid approximately $3.1 million for Arbor
with a combination of cash and shares of our Series A-1 Preferred Stock that
have since been converted into our common stock. During 1997, Arbor had revenues
of approximately $3.1 million.

    LOGEX INTERNATIONAL, L.L.C.  We acquired substantially all of the assets of
LOGEX International on April 30, 1998. LOGEX specialized in electronic commerce
systems integration and outsourcing, providing electronic commerce systems
integration services to our customers. It had approximately nine consulting
professionals as of the date of the acquisition. We paid approximately $800,000
for LOGEX with a combination of cash and a convertible promissory note,
including $200,000 related to a contingent payment based on the achievement of
agreed-upon performance criteria for the one-year period ending on April 30,
1999.

    SOFTWARE SERVICES CORPORATION.  We acquired Software Services Corporation on
August 25, 1998. Software Services specialized in Internet-based applications
development, providing applications development, network architecture and design
services to our customers. It had approximately 190 consulting professionals as
of the date of the acquisition. We paid approximately $22.9 million for Software
Services with a combination of cash and shares of our common stock and Class B
Preferred Stock. During 1997, Software Services had revenues of approximately
$13.3 million.

    NEW MEDIA PUBLISHING, INC.  We acquired New Media Publishing on October 2,
1998. New Media Publishing specialized in interactive media services, providing
interactive community-building services to our customers. It had approximately
40 consulting professionals as of the date of the acquisition. We paid
approximately $19.0 million for New Media Publishing with a combination of cash,
shares of our common stock and options to purchase shares of our common stock.
The former New Media Publishing stockholders are also entitled to an additional
performance-based payment in January 2000 of $14.0 million, $8.4 million of
which is payable in cash and $5.6 million of which is payable in 654,971 shares
of our common stock, based on a contract price of $8.55 per share. During 1997,
New Media Publishing had revenues of approximately $3.0 million.

    CENTURY COMPUTING, INCORPORATED.  We acquired Century Computing on
October 12, 1998. Century specialized in electronic commerce systems integration
and outsourcing, providing systems integration and processing services to our
customers. It had approximately 81 consulting professionals as of the date of
the acquisition. We paid approximately $29.0 million for Century with a
combination of cash, a convertible promissory note and options to purchase
shares of our common stock. During 1997, Century had revenues of approximately
$10.9 million.

                                       48
<PAGE>
    RESEARCH & PLANNING, INC.  We acquired Research & Planning on October 20,
1998. Research & Planning specialized in electronic commerce systems integration
and outsourcing, providing enterprise resource planning and integration and data
warehousing services to our customers. It had approximately 40 consulting
professionals as of the date of the acquisition. We paid approximately
$20.5 million for Research & Planning with a combination of cash, promissory
notes and shares of our common stock. During 1997, Research & Planning had
revenues of approximately $4.8 million.

    THE KODIAK GROUP, INC.  We acquired The Kodiak Group on December 14, 1998.
Kodiak specialized in electronic commerce systems integration and outsourcing,
providing EDI integration and processing services to our customers. It had
approximately 35 consulting professionals as of the date of the acquisition. We
paid approximately $15.6 million for Kodiak with a combination of cash,
convertible promissory notes and shares of our common stock. In addition, the
former Kodiak stockholders are entitled to a potential contingent payment
payable in cash of up to $4.0 million in the event that, during the three-year
period ending on December 14, 2001, Kodiak sells or licenses technology it
developed. During 1997, Kodiak had revenues of approximately $3.7 million.

    I33 COMMUNICATIONS CORP.  We acquired i33 communications corp. on
January 8, 1999. i33 communications specialized in interactive media services,
providing media buying and planning services to our customers. It had
approximately 40 consulting professionals as of the date of the acquisition. We
paid approximately $21.6 million for i33 communications with a combination of
cash and convertible promissory notes. During 1998, i33 communications had
revenues of approximately $4.4 million.

    SIGMA6, INC.  We acquired Sigma6, Inc. on March 4, 1999. Sigma6 specialized
in interactive media services, providing brand identity services to our
customers. Sigma6 had approximately 25 consulting professionals as of the date
of the acquisition. We paid approximately $2.5 million for Sigma6 with a
combination of cash and shares of our common stock. The former Sigma6
stockholders are also entitled to a potential contingent payment payable in cash
and in shares of our common stock of up to $2.8 million based on the achievement
of agreed-upon performance criteria during the 12-month period ending on
December 31, 1999. During 1998, Sigma6 had revenues of approximately
$1.8 million.

    SALZINGER & COMPANY, INC.  We acquired substantially all of the assets of
Salzinger & Company on March 15, 1999. Salzinger & Company specialized in
strategic consulting, providing business-level strategic consulting services to
our customers. It had approximately eight consulting professionals as of the
date of the acquisition. We paid approximately $8.5 million for Salzinger &
Company with a combination of cash and shares of our common stock. Salzinger &
Company is also entitled to a potential contingent payment, payable in cash or,
at the seller's option, in cash and in shares of our common stock, of up to
$5.0 million based on the achievement of agreed-upon performance criteria during
the period beginning on April 1, 1999 and ending on September 30, 2000. During
1998, Salzinger & Company had revenues of approximately $3.1 million.

    INTERNET OUTFITTERS, INC.  We acquired Internet Outfitters on March 26,
1999. Internet Outfitters specialized in interactive media services, providing
localization and creative Web-development services to our customers. It had
approximately 25 consulting professionals as of the date of the acquisition. We
paid approximately $9.5 million for Internet Outfitters with a combination of
cash, shares of our common stock and options to purchase shares of our common
stock. The former Internet Outfitters stockholders are also entitled to receive
a potential contingent payment payable in cash and in shares of our common stock
of up to $3.5 million based on the achievement of agreed-upon performance
criteria for the year ending on December 31, 1999. During 1998, Internet
Outfitters had revenues of approximately $2.3 million.

    In connection with our acquisition of Internet Outfitters, approximately
$1.45 million of the purchase price, based upon the fair value of $17.10 per
share at the date of acquisition, in the form of shares of our common stock was
pledged to us and escrowed to be available to satisfy any potential

                                       49
<PAGE>
liability in connection with a license dispute. We also held back $750,000 of
the cash purchase price to be used to satisfy indemnification claims, including
any potential liability arising from such license dispute. These amounts will be
paid on the earlier of the date the dispute is resolved in a manner satisfactory
to us or June 30, 2001. A licensor of software used by a client of Internet
Outfitters has asserted that Internet Outfitters caused the client to underpay
the licensor in the amount of $2.2 million. Outfitters has denied any liability
for those additional amounts. In management's opinion, based on all known facts,
the software licensor's claim is without merit, however, if disposed of
unfavorably to AppNet, it could materially adversely affect us.

    TRANSFORM IT, INCORPORATED.  We acquired substantially all of the assets of
TransForm IT on March 29, 1999. TransForm IT specialized in strategic
consulting, providing process-level strategic consulting services to our
customers. It had approximately 10 consulting professionals as of the date of
the acquisition. We paid approximately $5.1 million for TransForm IT with a
combination of cash and shares of our common stock. TransForm IT is also
entitled to receive potential contingent payments payable in cash of up to $3.5
million based on the achievement of agreed-upon performance criteria during the
12-month period ending on March 31, 2000. In addition, the employees of
Transform Acquisition Corp., a subsidiary formed by AppNet to acquire TransForm
IT, are entitled to receive potential contingent payments payable in options to
purchase shares of our common stock based on the achievement of various revenue
levels during the 12-month period ending on March 31, 2000. During 1998,
TransForm IT had revenues of approximately $3.1 million.

    We have developed a detailed process to fully integrate each acquisition
into our existing operations and create one seamless organization. We have begun
completing the integration tasks laid out in this detailed process. This
detailed process focuses on integrating the delivery of our professional
services, our sales and marketing functions, our knowledge management system and
our back-office functions.

    By integrating the delivery of professional services, we can more
efficiently manage projects, provide better quality control, increase the
quality of our work and provide better customer service. By integrating our
sales and marketing functions, we can more efficiently generate leads and win
new business, provide superior customer service, coordinate the delivery of more
effective marketing messages and better train our sales personnel. By
integrating the way we manage our knowledge on a company-wide basis, we can more
efficiently interact and share information with our employees and customers,
reduce the time it takes to develop solutions for our clients, increase the
quality of our work and provide better customer service. By integrating our
back-office functions we can more efficiently monitor and manage our business,
recruit and retain employees, and administer corporate-wide benefit programs.

EMPLOYEES

    As of September 30, 1999, we had 959 employees. Our continuing success will
depend in large part on our ability to attract, motivate and retain employees
who are qualified to offer the services we provide. Competition for qualified
employees is intense. We believe we have been successful to date in attracting
and retaining qualified employees. Our strategy for attracting, motivating and
retaining our employees is to pay competitive salaries and cash bonuses, grant
stock options, reimburse tuition expenses and encourage a corporate culture that
is results-driven and rewards creativity, communication and cooperation.

    We believe our relationship with our employees is satisfactory. None of our
employees is represented by a union. Generally, our employees are retained on an
at-will basis and many of our key employees are subject to employment
agreements. All of our senior managers, as well as most of our key employees,
are required to sign confidentiality agreements and non-competition agreements
which prohibit them from competing with us during their employment and for
various periods thereafter.

                                       50
<PAGE>
PROPERTIES

    Our headquarters are located in Bethesda, MD and consist of approximately
13,400 square feet of leased space, the lease for which expires in May 2005. We
also lease office space in Santa Monica, CA, Golden, CO, Stamford, CT, Laurel,
MD, Cambridge, MA, Pittsfield, MA, Ann Arbor, MI, Detroit, MI, two locations in
New York, NY, Charlottesville, VA, two locations in Falls Church, VA, Vienna, VA
and Amsterdam, The Netherlands. We do not own any real estate. We do not
consider any specific leased location to be material to our operations and we
believe that equally suitable alternative locations are available in all areas
where we currently do business.

LEGAL PROCEEDINGS

    We are not a party to any pending material legal proceedings.

                                       51
<PAGE>
                                   MANAGEMENT

EXECUTIVE OFFICERS AND DIRECTORS

    Information regarding our executive officers and directors as of
November 11, 1999 is set forth below. Each director's term of office will expire
at our next annual meeting of stockholders. Each officer's term of office will
expire at the first Board of Directors meeting held after our next annual
meeting of stockholders.

<TABLE>
<CAPTION>
NAME                            AGE      POSITION
- ----                          --------   --------
<S>                           <C>        <C>
Ken S. Bajaj................     57      Chairman of the Board of Directors, President and Chief
                                         Executive Officer

Jack Pearlstein.............     35      Senior Vice President, Chief Financial Officer and
                                         Treasurer

Toby Tobaccowala............     60      Executive Vice President--e-Business Services

John Cross..................     57      Director, Executive Vice President--Strategic Consulting

William S. Dawson...........     44      Secretary, Vice President and General Counsel

Philip A. Canfield..........     31      Director

Thomas M. Davidson..........     62      Director

Bruce V. Rauner.............     43      Director

Richard N. Perle............     58      Director
</TABLE>

    KEN S. BAJAJ.  Mr. Bajaj has been Chairman of our Board of Directors,
President and Chief Executive Officer since November 1997. Mr. Bajaj was Vice
Chairman of Wang Laboratories, Inc. from March 1997 until November 1997. He
joined Wang Laboratories, Inc. when that company acquired I-NET, Inc. in 1996;
at that time he was President of I-NET, Inc., a position he held from 1988 until
1996. Before joining I-NET, Inc., Mr. Bajaj had been a Vice President at
Electronic Data Systems, Inc. since 1978. Mr. Bajaj has an M.S. in electrical
engineering from the University of Toronto and a Ph.D. in systems science from
Michigan State University.

    JACK PEARLSTEIN.  Mr. Pearlstein has been our Senior Vice President since
July 1998 and our Chief Financial Officer and Treasurer since May 1999. Prior to
that time, Mr. Pearlstein was a Managing Director and principal of Foxhall
Capital, LLC from November 1996 until July 1998. Prior to that time, he was
Director--Mergers and Acquisitions at Digicon Corporation from November 1995 to
November 1996. From September 1994 until November 1995, he was a senior
associate at Merge Global, Inc. From June 1993 until August 1994, he was a
financial analyst at Legg Mason. Mr. Pearlstein has a B.S. in Accounting from
New York University and an M.B.A. in Finance from the George Washington
University.

    TOBY TOBACCOWALA.  Mr. Tobaccowala has been our Executive Vice
President--e-Business Services since September 1999. Prior to that, he served as
our Senior Vice President since August 1998. Prior to August 1998,
Mr. Tobaccowala was Chief Executive Officer and a director of Commerce Direct
International for one year. Before joining Commerce Direct International,
Mr. Tobaccowala was employed by the Media Strategic Business Unit of Electronic
Data Systems, Inc. from 1973 until 1996, most recently as President. He has an
M.B.A. from the Bajaj Institute of Management Studies.

    JOHN CROSS.  Mr. Cross has been on our Board of Directors since June 1998
and our Executive Vice President--Strategic Consulting since March 1999.
Mr. Cross was the Group Vice President of Information Technology for BP Amoco
Corporation from 1998 until 1999. Mr. Cross was the Chief Information Officer
for the British Petroleum Group from 1993 until 1998. Prior to 1993, he was

                                       52
<PAGE>
General Manager for information technology in the Exploration and Production
Company of British Petroleum. Mr. Cross has a B.S. in economics and business
management from the University of Natal, South Africa.

    WILLIAM S. DAWSON.  Mr. Dawson has been our Vice President and General
Counsel since May 1999 and our Secretary since June 1999. Mr. Dawson was General
Counsel and Secretary of SPACEHAB, Inc. from April 1996 until May 1999. From
February 1989 until April 1996, Mr. Dawson was Senior Counsel, and subsequently
Associate General Counsel, of Government Technology Services, Inc. Prior to
joining Government Technology Services, Inc., Mr. Dawson was an attorney with
Seyfarth, Shaw, Fairweather & Geraldson from February 1986 until February 1989
and Watt, Tieder, Killian & Hoffar from May 1984 until February 1986.
Mr. Dawson has a B.A. from Gordon College and a J.D. from Catholic University
Law School.

    PHILIP A. CANFIELD.  Mr. Canfield has been on our Board of Directors since
June 1998. He has been a principal at GTCR Golder Rauner, L.L.C. since 1997 and
an associate from 1992 until 1997. Prior to 1992, Mr. Canfield worked in the
corporate finance department of Kidder, Peabody & Co. He has a B.S. in finance
from the Honors Business Program at the University of Texas at Austin and an
M.B.A. from the University of Chicago. Mr. Canfield is also a director of AETEA
Information Technology, Inc., VISTA Information Technologies, Inc. and several
other private companies in GTCR's portfolio.

    THOMAS M. DAVIDSON.  Mr. Davidson has been on our Board of Directors since
June 1998. Mr. Davidson has been President and Chief Executive Officer of
Davidson Capital Group LLC since June 1998. From June 1997 until April 1998,
Mr. Davidson was a Managing Director of Washington Equity Partners. Prior to
that, he was a partner at the law firm of Reed, Smith, Shaw & McClay. From 1995
until March 1997, Mr. Davidson was a partner at the law firm of Coffield,
Ungaretti & Harris. Mr. Davidson was a partner at the law firm of Verner,
Liipfert, Bernhard, McPherson & Hand from 1993 until 1995. He has a B.A. from
Williams College and an LL.D. from Duke University.

    BRUCE V. RAUNER.  Mr. Rauner has been on our Board of Directors since June
1998. Mr. Rauner is a managing principal of GTCR Golder Rauner, L.L.C. and has
been a principal of GTCR since 1981. Mr. Rauner has a B.A. from Dartmouth
College and an M.B.A. from Harvard University. Mr. Rauner is also a director of
AnswerThink Consulting Group, Inc., Lason, Inc., Coinmach Laundry Corporation,
Polymer Group, Inc., Province Healthcare, Inc., Esquire Communications Ltd. and
several private companies in GTCR's portfolio.

    RICHARD N. PERLE.  Mr. Perle has been on our Board of Directors since June
1999. Mr. Perle is also director of the American Enterprise Institute's
Commission on Future Defenses. From 1981 until 1987, he was Assistant Secretary
of Defense for International Security Policy of the U.S. Department of Defense.
Mr. Perle is currently the Chairman of Hollinger Digital, Inc. and a director of
Hollinger International, Inc., Geobiotics, American Interactive Media, Inc. and
Morgan Crucible, PLC. Mr. Perle has a B.A. in International Relations from the
University of Southern California and an M.A. from Princeton University.

BOARD OF DIRECTORS

    Our Board of Directors is currently composed of six directors. We intend to
expand the Board to include one additional outside director after this offering.
AppNet and GTCR are party to an agreement that provides that as long as GTCR
owns at least 15% of the shares owned by it immediately after the consummation
of our June 1999 initial public offering, AppNet will, subject to any
limitations imposed by Delaware law, use its best efforts to nominate at least
one GTCR designee to the Board.

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<PAGE>
COMMITTEES OF THE BOARD OF DIRECTORS

    We have an Audit Committee and a Compensation Committee, each composed of a
majority of independent directors. The Audit Committee recommends the annual
appointment of our auditors with whom the Audit Committee reviews the scope of
audit and non-audit assignments and related fees, accounting principles we use
in financial reporting, internal auditing procedures and the adequacy of our
internal control procedures. The Compensation Committee makes recommendations to
the Board of Directors regarding compensation for our executive officers. AppNet
has agreed to use its best efforts, subject to any limitations imposed by
Delaware law, to ensure that GTCR will be entitled to appoint its designee to
the Compensation Committee.

COMPENSATION OF DIRECTORS

    Directors who are also employees of AppNet receive no additional
compensation for their services as directors. Directors who are not AppNet
employees do not receive a fee for attendance in person at meetings of the Board
of Directors or committees of the Board of Directors, but they are reimbursed
for travel expenses and other out-of-pocket costs incurred in connection with
the attendance of meetings. Non-employee directors receive options to purchase
our common stock in connection with their appointment to the Board of Directors.
Non-employee directors also receive automatic grants of options to purchase our
common stock each year that they are re-elected to the Board of Directors.

LIMITATIONS ON LIABILITY AND INDEMNIFICATION MATTERS

    The Delaware General Corporation Law provides that a company may indemnify
its directors and officers against liabilities they may incur as a result of
their service as a director of officer. Our certificate of incorporation and
bylaws provide for the indemnification of our directors and officers to the
fullest extent permitted by law. The effect of such provisions is to indemnify
our directors and officers against all costs, expenses and liabilities incurred
by them in connection with actions, suits or proceedings in which they are
involved because of their affiliation with us. In addition, we intend to obtain
director and officer liability insurance to effectuate these provisions.

EXECUTIVE COMPENSATION

    The following table sets forth a summary of compensation for services
rendered in all capacities to us by the Chief Executive Officer and President
and each of our four other most highly paid executive officers for the year
ended 1998.

                                       54
<PAGE>
                           SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
                                                                                              OTHER
                                                      ANNUAL COMPENSATION                    ANNUAL
                                              ------------------------------------           COMPEN-
NAME AND PRINCIPAL POSITIONS                    YEAR       SALARY          BONUS             SATION
- ----------------------------                  --------   ----------       --------          ---------
<S>                                           <C>        <C>              <C>               <C>
Ken S. Bajaj
  President and Chief Executive
  Officer(a)................................    1998         --              --                --

Toby Tobaccowala
  Senior Vice President.....................    1998     $ 90,278(b)      $ 15,000             --

Ronald B. Alexander
  Senior Vice President--Finance(c).........    1998         63,333         10,000          $50,000(e)

Robert G. Harvey
  Senior Vice President--Software
  Development Services(d)...................    1998        114,250          --              40,000(f)

Robert D. McCalley
  Senior Vice President--Electronic
  Commerce(d)...............................    1998        114,330          --              40,000(f)

Terrence M. McManus
  Senior Vice President, Secretary &
  Treasurer(d)..............................    1998        124,048          --              40,000(f)
</TABLE>

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

(a) Mr. Bajaj began to receive an annual base salary of $300,000 in May 1999.
    Prior to May 1999, Mr. Bajaj elected not to receive any compensation.

(b) Mr. Tobaccowala began to work for us in July 1998. The salary set forth
    above for 1998 represents his salary for the six-month period from July to
    December 1998.

(c) Mr. Alexander's employment with us began in September 1998 and ended in July
    1999. The salary set forth above for 1998 represents his salary for the
    four-month period from September to December 1998.

(d) Messrs. Harvey, McCalley and McManus each began to work for us in
    February 1998. The salaries set forth above for 1998 represents their
    respective salaries for the eleven-month period from February to
    December 1998. Mr. Harvey's employment with us ended in September 1999.
    Mr. McCalley resigned as Senior Vice President--Electronic Commerce in
    August 1999 but continues to be an employee. Mr. McManus' employment with us
    ended in December 1998.

(e) Mr. Alexander earned a $50,000 signing bonus in 1998.

(f) Messrs. Harvey, McCalley and McManus each received 56,140 shares of our
    common stock as partial compensation for services rendered from February 1,
    1998 to May 31, 1998.

OPTION GRANTS AND EXERCISES DURING 1998

    No stock options to purchase our common stock were granted to or exercised
by the executive officers named in the table above during 1998.

                                       55
<PAGE>
EMPLOYMENT AGREEMENTS

    We have entered into a senior management agreement with Mr. Bajaj, dated as
of June 29, 1998, which provides for his employment as our President and Chief
Executive Officer until he resigns, is disabled, as determined by the Board of
Directors in its good faith judgment, dies or is terminated by the Board of
Directors for any reason. Mr. Bajaj began to receive an annual base salary of
$300,000 in May 1999, subject to increases as determined by the Board of
Directors based upon AppNet's achievement of budgetary and other objectives set
by the Board of Directors. He will also be eligible to receive a bonus of up to
50% of his salary based upon AppNet's achievement of budgetary and other
objectives set by the Board of Directors.

    The senior management agreement contains provisions requiring Mr. Bajaj to
protect the confidentiality of our proprietary and confidential information. In
addition, Mr. Bajaj is prohibited, during his employment at AppNet and for
18 months after such employment ends, from competing with AppNet, soliciting any
of our employees or interfering with any of our business relationships.

    The senior management agreement also restricts the transfer of all shares of
AppNet common stock Mr. Bajaj owned as of the date of the agreement until
June 29, 2003, subject to specific exceptions, including:

    - sales in a registered public offering; and

    - sales, subject to volume limitations imposed by the senior management
      agreement, under Rule 144 under the Securities Act.

The registration agreement dated as of June 29, 1998 to which substantially all
of the stockholders of AppNet who acquired their shares prior to our June 1999
initial public offering are party provides that Mr. Bajaj may request that his
shares of AppNet common stock be included on any registration statement filed by
AppNet:

    - to register common stock held by GTCR and Smart Technology; or

    - on its own behalf.

    The senior management agreement provides that if Mr. Bajaj's employment with
us terminates before June 30, 2001, AppNet may repurchase shares of its common
stock owned by Mr. Bajaj or his permitted transferees at a price of $0.0029 per
share. The number of shares which AppNet may repurchase upon these terms is
1,358,109 until June 29, 2000 and 679,004 until June 29, 2001, after which
AppNet's right to repurchase Mr. Bajaj's common stock terminates. If AppNet does
not exercise its repurchase right, GTCR and Smart Technology may repurchase
these shares at a price of $0.0029 per share and contribute them to AppNet in
exchange for a promissory note equal to the aggregate purchase price of such
shares. GTCR's and Smart Technology's repurchase right terminates upon the
earliest of:

    - the sale of capital stock with the voting power to elect a majority of the
      Board of Directors to persons or entities other than GTCR and Smart
      Technology, other than in a public offering;

    - the sale of all or substantially all of our assets;

    - GTCR and its affiliates failing to own more than 50% of the common stock
      GTCR purchased under the Purchase Agreement dated June 29, 1998, as
      amended; and

    - June 30, 2001.

    We entered into senior management agreements with each of
Messrs. Tobaccowala and McCalley in July 1998 and June 1998, respectively. These
agreements provide for their respective employment by AppNet until resignation,
disability, as determined by the Board of Directors in its good faith judgment,
death or termination by the Board of Directors for any reason. Each senior
management agreement sets forth the annual base salary the executive is entitled
to receive, subject to increases as determined by the Board of Directors based
upon AppNet's achievement of budgetary and other

                                       56
<PAGE>
objectives set by the Board of Directors. Each executive is eligible to receive
a bonus of up to 50% of his salary based upon AppNet's achievement of budgetary
and other objectives set by the Board of Directors.

    If an executive's employment is terminated without cause, he is entitled to
receive his annual salary and life, medical and disability insurance benefits
for one year. Cause is defined generally as:

    - commission of a felony or crime involving moral turpitude;

    - fraud, gross negligence or willful misconduct with respect to AppNet;

    - substantial and repeated failure to perform duties; or

    - breach of the confidentiality or noncompete provisions of the senior
      management agreement.

    Each senior management agreement contains provisions requiring the executive
to protect the confidentiality of our proprietary and confidential information.
In addition, each executive is prohibited, during his employment at AppNet and
for two years after such employment ends if he resigns or is terminated for
cause or for one year after such employment ends, if he is terminated without
cause, from competing with AppNet, soliciting any of our employees or
interfering with any of our business relationships.

    The senior management agreements with Messrs. Tobaccowala and McCalley
provided for the sale of 175,439 and 110,175 shares, respectively, or 285,614
shares in the aggregate, of our common stock to these individuals at a per share
price of $0.3007, for an aggregate consideration of $85,884. In connection with
these stock purchases, each executive delivered a promissory note to AppNet for
the full amount of the purchase price, less the par value of the stock
purchased. Each promissory note is secured by a pledge of the purchased stock.

    Each senior management agreement restricts the transfer of the AppNet common
stock owned by the executive as of the date of the agreement until June 29,
2003, subject to specific exceptions, including:

    - sales in a registered public offering; and

    - sales, subject to volume limitations imposed by the senior management
      agreement, under Rule 144 under the Securities Act.

The registration agreement dated June 29, 1998 provides that each executive may
request that his shares of AppNet common stock be included in any registration
statement filed by AppNet:

    - to register common stock held by GTCR and Smart Technology; or

    - on its own behalf.

    Each senior management agreement also provides that upon termination of the
executive's employment, AppNet may repurchase all or any portion of its common
stock owned by such executive or his permitted transferees. A portion of the
executive's common stock may be repurchased at original cost, which is defined
as the price originally paid by the executive for such common stock. If the
executive's employment is terminated for any reason before the first anniversary
of his senior management agreement, the amount of common stock which may be
repurchased at the original cost ranges from 75% to 100%, depending on the
particular executive. The portion of common stock to be repurchased at the
original cost decreases ratably each year until it reaches zero after the fourth
anniversary of the senior management agreement. If AppNet does not exercise its
repurchase right, GTCR, Smart Technology or Mr. Bajaj may repurchase the
executive's AppNet common stock upon the same terms and contribute them to
AppNet in exchange for a promissory note equal to the aggregate purchase price
of such shares. This repurchase right terminates upon:

    - the sale of capital stock with the voting power to elect a majority of the
      Board of Directors to persons or entities other than GTCR and Smart
      Technology, other than in a public offering; or

    - the sale of all or substantially all of our assets.

                                       57
<PAGE>
    We also entered into senior management agreements with Messrs. Alexander,
McManus and Haney, each of whose employment has subsequently ceased. We are
making severance payments to each of these former employees in accordance with
the terms of their management agreements.

STOCK INCENTIVE PLANS

    1999 STOCK INCENTIVE PLAN

    We have adopted the AppNet, Inc. 1999 Stock Incentive Plan. The purpose of
the 1999 Stock Incentive Plan is to strengthen AppNet by providing an incentive
to its employees, officers, consultants, directors and advisors through the
granting or awarding of incentive and nonqualified stock options, stock
appreciation and dividend equivalent rights, restricted stock, performance
units, performance shares, share awards and phantom stock awards, thereby
encouraging these individuals to devote their abilities and energies to the
success of AppNet.

    The 1999 Stock Incentive Plan is administered by the Board of Directors.
Under the 1999 Stock Incentive Plan, the Board has the authority to, among other
things:

    - select the employees to whom stock options and other incentive awards will
      be granted;

    - determine the type, size and the terms and conditions of stock options and
      other incentive awards; and

    - establish the terms for treatment of stock options and other incentive
      awards upon a termination of employment.

    The Board has authorized 2,000,000 shares of common stock for issuance under
the 1999 Stock Incentive Plan for the grant of stock options and other incentive
awards to eligible individuals. The amount of common stock authorized for
issuance under the 1999 Stock Incentive Plan may be increased annually by the
Board. The total amount of shares authorized under the plan may not exceed
10,000,000. The 1999 Stock Incentive Plan will terminate on the day preceding
the tenth anniversary of the date of its adoption by the Board of Directors. The
Board of Directors is able to amend or terminate the 1999 Stock Incentive Plan;
provided, however, that, to the extent necessary under applicable law or the
rules and regulations of the Nasdaq National Market, no such change will be
effective without the requisite approval of the stockholders. In addition, no
such change will alter or adversely impair any rights or obligations under any
stock options and other incentive awards previously granted, except with the
written consent of the grantee.

    As of September 30, 1999, options to purchase a total of 1,015,812 shares of
our common stock were outstanding under the 1999 Stock Incentive Plan and remain
unexercised, no shares of our common stock have been issued upon exercise of
options granted under the 1999 Stock Incentive Plan and options to purchase
10,920 shares of our common stock granted under the 1999 Stock Incentive Plan
are currently exercisable. As of September 30, 1999, the weighted average
exercise price of the options outstanding under this plan was $14.41.

    1998 STOCK OPTION AND INCENTIVE PLAN

    Our 1998 Stock Option and Incentive Plan has 1,570,631 shares of our common
stock reserved for issuance in connection with awards granted under such plan.

    As of September 30, 1999, options to purchase a total of 1,476,967 shares of
our common stock were outstanding under the 1998 Stock Option and Incentive Plan
and remain unexercised, 8,316 shares of our common stock have been issued upon
the exercise of options granted under the 1998 Stock Option and Incentive Plan
and options to purchase 233,081 shares of our common stock granted under the
1998 Stock Option and Incentive Plan are currently exercisable. As of
September 30, 1999, the weighted average exercise price of the options
outstanding under this plan was $11.04.

    The Board of Directors or a Board-appointed committee is authorized to
construe, interpret and implement the provisions of the 1998 Stock Option and
Incentive Plan, to determine the terms and

                                       58
<PAGE>
provisions of awards and, with the consent of the grantee, to amend the terms of
any outstanding award. The determinations of the Board of Directors or a
Board-appointed committee are made in its sole discretion and are conclusive.

    The 1998 Stock Option and Incentive Plan has no termination date, however,
no incentive stock options may be granted under such plan on or after
August 25, 2008. The Board of Directors may at any time and from time to time
amend, suspend or terminate the 1998 Stock Option and Incentive Plan; provided,
however, that, to the extent necessary under applicable law, no such change will
be effective without the requisite approval of the stockholders. In addition, no
such change will alter or adversely impair any rights or obligations under
awards previously granted, except with the written consent of the grantee. No
further awards will be made under the 1998 Stock Option and Incentive Plan.

    CENTURY COMPUTING, INCORPORATED INCENTIVE STOCK OPTION PLAN

    In connection with our acquisition of Century Computing, we assumed its
Incentive Stock Option Plan and related award agreements with each grantee. Each
outstanding option to purchase the common stock of Century Computing was
converted into an incentive stock option to purchase our common stock based on a
conversion ratio. Originally, we reserved a total of 704,127 shares of our
common stock for issuance in connection with options granted under the Century
Incentive Stock Option Plan.

    As of September 30, 1999, options to purchase a total of 43,648 shares of
our common stock were outstanding under the Century Incentive Stock Option Plan
and remain unexercised, 660,479 shares of our common stock have been issued upon
the exercise of options granted under the Century Incentive Stock Option Plan
and options to purchase 43,648 shares of our common stock granted under the
Century Incentive Stock Option Plan are currently exercisable. As of
September 30, 1999, the weighted average exercise price of the options
outstanding under this plan was $0.84.

    The Century Incentive Stock Option Plan is administered by Century
Computing's Board of directors unless the Board of directors delegates the power
and authorities related to the administration of the Century Incentive Stock
Option Plan to a Board-appointed committee. The Board of directors or a
Board-appointed committee is authorized to construe, interpret and implement the
provisions of the Century Incentive Stock Option Plan, to determine the terms
and provisions of awards and, with the consent of the grantee, to amend the
terms of any outstanding award. The determinations of the Board of directors or
a Board-appointed committee are made in its sole discretion and are conclusive.

    The Century Incentive Stock Option Plan has no termination date, however, no
incentive stock options may be granted under the Century Incentive Stock Option
Plan after the expiration of the ten-year period beginning on the date the
Century Incentive Stock Option Plan was adopted. The Board of Directors may at
any time and from time to time amend or terminate the Century Incentive Stock
Option Plan; provided, however, that, to the extent necessary under applicable
law, no such change will be effective without the requisite approval of the
stockholders. AppNet does not intend to make any new grants under the Century
Incentive Stock Option Plan.

    INTERNET OUTFITTERS, INC. 1996 INCENTIVE STOCK OPTION PLAN

    In connection with our acquisition of Internet Outfitters, Inc., we assumed
its 1996 Incentive Stock Option Plan and related award agreements with each
grantee. Each outstanding option to purchase the common stock of Internet
Outfitters was converted into an incentive stock option to purchase our common
stock based on a conversion ratio. Originally, we reserved a total of 22,300
shares of our common stock for issuance in connection with options granted under
the Internet Outfitters Incentive Stock Option Plan.

    As of September 30, 1999, options to purchase a total of 20,415 shares of
our common stock were outstanding under the Internet Outfitters Incentive Stock
Option Plan and remain unexercised, 177

                                       59
<PAGE>
options have been exercised and options to purchase 9,625 shares of our common
stock granted under the Internet Outfitters Incentive Stock Option Plan are
currently exercisable. As of September 30, 1999, the weighted average exercise
price of the options outstanding under this plan was $3.15.

    The Internet Outfitters Incentive Stock Option Plan is administered by the
Internet Outfitters Board of Directors unless the Board of Directors delegates
the power and authorities related to the administration of the Internet
Outfitters Incentive Stock Option Plan to a Board-appointed committee. The Board
of Directors or a Board-appointed committee is authorized to construe, interpret
and implement the provisions of the Internet Outfitters Incentive Stock Option
Plan, to determine the terms and provisions of awards and, with the consent of
the grantee, to amend the terms of any outstanding award. The determinations of
the Board of Directors or a Board-appointed committee are made in its sole
discretion and are conclusive.

    The Internet Outfitters Incentive Stock Option Plan will terminate upon the
expiration of the ten-year period beginning on the date the Internet Outfitters
Incentive Stock Option Plan was adopted. The Board of Directors may at any time
and from time to time amend or terminate the Internet Outfitters Incentive Stock
Option Plan; provided, however, that, to the extent necessary under applicable
law, no such change will be effective without the requisite approval of the
stockholders. AppNet does not intend to make any new grants under the Internet
Outfitters Incentive Stock Option Plan.

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<PAGE>
                     CERTAIN RELATIONSHIPS AND TRANSACTIONS

GTCR AND SMART TECHNOLOGY PURCHASE AGREEMENT

    GTCR, Smart Technology and AppNet are parties to a purchase agreement, dated
as of June 29, 1998, as amended and supplemented which provided for the purchase
by GTCR and Smart Technology, L.L.C., an entity controlled by Mr. Bajaj's
spouse, of 11,326,228 and 232,916 shares of our common stock, respectively, at a
price of $0.3007 per share. At that time, GTCR and Smart Technology also agreed
from time to time to purchase up to an aggregate of 96,500 shares of Class A
Preferred Stock at a price of $1,000 per share in the future on the terms
described below. GTCR was required to purchase Class A Preferred Stock at the
request of AppNet's Board of Directors and the approval of GTCR to fund AppNet's
working capital requirements and acquisitions. GTCR and Smart Technology
purchased aggregate amounts of approximately 44,167 and 900 shares of Class A
Preferred Stock, respectively, under the purchase agreement for aggregate
purchase prices of approximately $44,167,000 and $900,000, respectively. In June
1999 in connection with our initial public offering, the parties to the purchase
agreement entered into a reorganization agreement dated as of June 16, 1999,
providing for the exchange of all of the shares of Class A Preferred Stock and
accumulated and unpaid dividends on such shares purchased by GTCR and Smart
Technology for 3,813,864 and 77,834 shares of our common stock, respectively.
The purchase agreement with GTCR and Smart Technology currently provides that as
long as GTCR owns at least 15% of the securities purchased under the purchase
agreement, AppNet must obtain GTCR's prior written consent before amending or
waiving any provision of the senior management agreements or the agreements
between AppNet and the Fairfax entities. Additionally, as long as GTCR owns at
least 15% of the shares owned by it immediately after the consummation of the
offering, AppNet will, subject to any limitations imposed by Delaware law, use
its best efforts to nominate at least one GTCR designee to the Board.

    In connection with AppNet's acquisition of Software Services Corporation and
the issuance of 11,576 shares of Class B Preferred Stock to the former
stockholders of that company, GTCR and Smart Technology transferred an aggregate
of 1,387,097 shares of AppNet common stock to us in exchange for an aggregate of
417.066 shares of our Class A Preferred Stock. In connection with a revolving
credit agreement between AppNet and BankBoston, N.A., GTCR and Smart Technology
sold an aggregate of 123,538 shares of our common stock and an aggregate of
approximately 362 shares of our Class A Preferred Stock to FSC Corp., an
affiliate of BankBoston, for an aggregate purchase price of $375,000.

REGISTRATION AGREEMENT

    The registration agreement provides that the holders of a majority of our
common stock issued to GTCR and Smart Technology under the purchase agreement
with GTCR and Smart Technology may have the right to demand the filing of a
registration statement with the Securities and Exchange Commission to register
all or any portion of this common stock. Substantially all of the stockholders
of AppNet who acquired their shares prior to our June 1999 initial public
offering have the right to include all or any portion of their AppNet common
stock on registration statements filed by AppNet to register shares of the
common stock issued to GTCR and Smart Technology under the purchase agreement
with GTCR and Smart Technology; subject, however, to the ability of the
underwriters of any offering to limit the number of shares included in such
registration. Holders of the majority of our common stock issued to GTCR and
Smart Technology under the purchase agreement with GTCR and Smart Technology may
require AppNet to file, and pay the expenses in connection with, up to four
registration statements on Form S-1 and an unlimited number of registration
statements on Forms S-2 and S-3, if AppNet qualifies to use such forms. If
AppNet proposes to register securities for its own account, GTCR, Smart
Technology and substantially all of AppNet's other stockholders who are parties
to the registration agreement are entitled to notice of, and to include their
shares in, such registration; subject, however, to the ability of the
underwriters of any offering to limit the number of shares included in such
registration. These registration rights cover all of the shares of our common
stock

                                       61
<PAGE>
owned by the parties to the registration agreement. The existence and exercise
of these registration rights may make it more difficult for AppNet to arrange
future financing and may have an adverse effect on the market price of our
common stock.

    In addition, our acquisition agreement with Arbor Intelligent Systems, Inc.
grants the former Arbor stockholders rights to have their shares of our common
stock included in any registration statement we file; subject, however, to the
ability of the underwriters of any offering to limit the number of shares
included in such registration.

BAJAJ SENIOR MANAGEMENT AGREEMENT

    The senior management agreement with Mr. Bajaj provided for the sale of
1,251,228 shares of our common stock to Mr. Bajaj at a per share price of
$0.3007. Mr. Bajaj pledged the 1,251,228 shares of common stock which he
purchased in accordance with the terms of his senior management agreement to
AppNet to secure a promissory note in the principal amount of $374,430 which
Mr. Bajaj delivered in partial payment for these shares. The senior management
agreement between Mr. Bajaj and AppNet gave AppNet the right, if it issues or
sells common stock or rights to acquire common stock, to its employees, to
repurchase these shares, whether held by Mr. Bajaj or his permitted transferees,
to be issued or sold to such employees at a price of $0.3007 per share. Prior to
our June 1999 initial public offering, AppNet repurchased a total of 1,041,109
of these shares from Mr. Bajaj for an aggregate purchase price of $313,035
reducing the principal amount of his promissory note to $62,878.

PROFESSIONAL SERVICES AGREEMENT WITH FAIRFAX MANAGEMENT COMPANY II, L.L.C. AND
FAIRFAX CONSULTING COMPANY, L.L.C.

    Stephen W. Ritterbush, a former vice chairman of our Board of Directors and
Bruce Gouldey, our former chief financial officer, are members of Fairfax
Consulting Company, L.L.C. They resigned their positions on June 29, 1998 in
connection with the GTCR and Smart Technology purchases of stock in AppNet under
the purchase agreement. We entered into a professional services agreement, dated
as of June 29, 1998, with Fairfax Management Company II, L.L.C. and Fairfax
Consulting Company, L.L.C., in which Fairfax Consulting Company agreed to
provide to AppNet the services of a financial and management consultant. In
return for the consultant's services, AppNet agreed to pay Fairfax Consulting
Company a monthly retainer of $16,667 as well as any fees for consulting
services in excess of the monthly retainer. The agreement also provided that if
AppNet acquired a company which was introduced to it by Fairfax Consulting
Company, AppNet would pay a finder's fee to Fairfax Consulting Company equal to
1% of the purchase price for the acquired company. We did not pay any finder's
fees to Fairfax Consulting Company in 1998. In 1998, AppNet paid approximately
$336,000 in consulting fees to Fairfax Consulting Company. The professional
services agreement prohibited Fairfax Management Company from owning,
controlling, rendering services to or otherwise doing business with our
competitors while the agreement was in effect and for a period of 18 months
after its termination. We terminated the professional services agreement with
Fairfax Management Company and Fairfax Consulting Company effective as of
November 20, 1998.

    Fairfax Management Company purchased 2,052,632 shares of our common stock in
March 1998 for an aggregate purchase price of $5,850. AppNet repurchased
1,350,877 of these shares on June 29, 1998 in exchange for a convertible
promissory note in the principal amount of $406,175. The professional services
agreement with Fairfax Management Company and Fairfax Consulting Company
restricts the transfer of the 684,211 shares of our common stock that Fairfax
Management Company retained until June 29, 2003, except:

    - in a public offering;

    - under Rule 144 through a broker, dealer or market maker (other than under
      Rule 144(k)), in proportion to sales by GTCR and Smart Technology under
      Rule 144;

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<PAGE>
    - in the event of the sale of our capital stock with the voting power to
      elect a majority of the Board of Directors to persons or entities other
      than GTCR or Smart Technology, other than in a public offering; or

    - in the event of the sale of all or substantially all of our assets.

The principal balance of the convertible promissory note held by Fairfax
Management Company was converted into 42,309 shares of AppNet common stock upon
our June 1999 initial public offering at a conversion rate equal to 80% of the
$12.00 per share initial public offering price.

DAVIDSON AGREEMENT

    Thomas M. Davidson, one of our directors, and AppNet are parties to an
agreement dated as of June 29, 1998, under which Mr. Davidson received $350,000
in cash and 52,632 shares of common stock from AppNet as a finder's fee in
connection with the GTCR and Smart Technology investments in AppNet. Under this
agreement Mr. Davidson earned a total of approximately $685,000 of additional
commissions through March 31, 1999, based upon the total amount invested in
AppNet by GTCR and Smart Technology.

    The Davidson agreement also provided for the purchase by Mr. Davidson of
86,651 shares of our common stock at a price of $0.3007 per share and a
consulting relationship with Mr. Davidson. Mr. Davidson received consulting fees
of $200,000 under this arrangement, which terminated in June 1999.

OTHER GTCR RELATIONSHIPS

    Prior to our June 1999 initial public offering, GTCR and AppNet were parties
to a professional services agreement under which GTCR received $200,000 per year
in exchange for financial and management consulting services. This agreement
also entitled GTCR to receive an investment fee equal to 1% of the purchase
price of the common stock and Class A Preferred Stock purchased from AppNet by
GTCR under the purchase agreement with GTCR and Smart Technology. GTCR earned
approximately $475,000 in investment fees under this agreement. The GTCR
professional services agreement terminated upon the consummation of our initial
public offering.

OTHER SMART TECHNOLOGY RELATIONSHIPS

    During 1998, Smart Technology loaned approximately $1.1 million to AppNet.
On May 31, 1998, AppNet issued a warrant to purchase 35,088 shares of its common
stock for an aggregate purchase price of $50,000 to Smart Technology as
consideration, in part, for this loan. On June 29, 1998, a portion of the
$1.1 million loan equal to the purchase price of the common stock Smart
Technology acquired from AppNet under the purchase agreement with GTCR and Smart
Technology was canceled, and AppNet issued a new promissory note in the
principal amount of $903,567 to Smart Technology. This note bore interest at the
rate of 12% per annum. The principal amount of this note was reduced from time
to time by the amount of the purchase price of Class A Preferred Stock purchased
by Smart Technology under the purchase agreement with GTCR and Smart Technology.
The amount outstanding under this note was reduced to $3,300, which was repaid
with a portion of the proceeds of our June 1999 initial public offering. Also on
June 29, 1998, in accordance with the purchase agreement with GTCR and Smart
Technology, the original warrant issued to Smart Technology was canceled and
AppNet issued a new warrant to Smart Technology to purchase 70,175 shares of
AppNet common stock for an exercise price of $0.3007 per share.

    In 1998, we paid Smart Technology approximately $25,000 in exchange for
consulting services.

                                       63
<PAGE>
CROSS SENIOR MANAGEMENT AGREEMENT

    We entered into a senior management agreement with John Cross, one of our
directors, in March 1999, which provides for his employment as an Executive Vice
President until he resigns, is disabled, as determined by the Board of Directors
in its good faith judgment, dies or is terminated by the Board of Directors for
any reason. Mr. Cross is entitled to receive a salary of $300,000 per year,
subject to increases as determined by the Board of Directors based upon AppNet's
achievement of budgetary and other objectives set by the Board of Directors.
Mr. Cross is eligible to receive a bonus of up to 50% of his salary based upon
AppNet's achievement of budgetary and other objectives set by the Board of
Directors.

    If Mr. Cross' employment is terminated without cause, he is entitled to
receive his annual salary and life, medical and disability insurance benefits
for one year. Cause is defined generally as:

    - commission of a felony or crime involving moral turpitude;

    - fraud, gross negligence or willful misconduct with respect to AppNet;

    - substantial and repeated failure to perform duties; or

    - breach of the confidentiality or noncompete provisions of the senior
      management agreement.

    The senior management agreement contains provisions requiring Mr. Cross to
protect the confidentiality of our proprietary and confidential information. In
addition, Mr. Cross is prohibited, during his employment at AppNet and for two
years after his employment ends if he resigns or is terminated for cause or for
one year after his employment ends if he is terminated without cause, from
competing with AppNet, soliciting any of our employees or interfering with any
of our business relationships.

    Pursuant to his management agreement, Mr. Cross also received options to
purchase 337,776 shares of AppNet common stock at an exercise price of $12.825
per share. The fair value of the common stock underlying these options as of the
date of grant was $14.25 per share.

OTHER RELATIONSHIPS AND TRANSACTIONS

    Foxhall Capital, LLC, an entity controlled by Jack Pearlstein, our Senior
Vice President and Chief Financial Officer, and AppNet signed an agreement dated
January 18, 1998, under which Foxhall Capital, LLC received approximately
$450,000 in cash from AppNet as a finder's fee in connection with AppNet's
acquisition of Century Computing, Incorporated in October 1998.

    In 1998, AppNet loaned AppNet Commerce Services, Inc., in which AppNet owns
a 50% interest, an aggregate of $0.2 million to fund its operations. Three
officers of AppNet have also been officers of this subsidiary.

                                       64
<PAGE>
                             PRINCIPAL STOCKHOLDERS

    The following table sets forth, as of October 31, 1999, information with
respect to the beneficial ownership of our common stock by:

    - each person known to AppNet to beneficially own more than 5% of the
      outstanding shares of our common stock;

    - each director of AppNet and each executive officer named in the Summary
      Compensation Table; and

    - all directors and executive officers as a group.

    Unless otherwise indicated, each stockholder has sole voting and investment
power with respect to the shares beneficially owned by the stockholder and has
the same address as AppNet.

<TABLE>
<CAPTION>
                                                                                 PERCENTAGE OWNERSHIP
                                            NUMBER OF SHARES OF      ---------------------------------------------
                                               COMMON STOCK
                                         BENEFICIALLY OWNED BEFORE
                                               THIS OFFERING         BEFORE THIS OFFERING   AFTER THIS OFFERING(A)
                                         -------------------------   --------------------   ----------------------
<S>                                      <C>                         <C>                    <C>
GTCR (b)...............................          13,238,470                  42.6%                   33.6%
Ken S. Bajaj (c).......................           2,993,271                   9.6                     8.2
Toby Tobaccowala.......................             193,182               *                       *
Ronald B. Alexander (d)................                  --                    --                      --
Robert D. McCalley.....................             166,315               *                       *
Robert G. Harvey (d)...................             119,298               *                       *
Philip A. Canfield (b)(e)..............                  --                    --                      --
John Cross.............................                  --                    --                      --
Richard N. Perle.......................               5,000               *                       *
Thomas M. Davidson (f).................             125,354               *                       *
Bruce V. Rauner (b)(e).................                  --                    --                      --
Terrence McManus (d)...................              29,824               *                       *
All executive officers and directors as
  a group (12 persons).................           3,415,052                  11.0%                    9.3%
</TABLE>

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

*   Less than 1%.

(a) Gives effect to the sale of 1,500,000 shares of common stock by AppNet in
    this offering.

(b) The address for GTCR and Messrs. Canfield and Rauner is 6100 Sears Tower,
    Chicago, Illinois 60606.

(c) 2,693,946 of these shares are beneficially owned by Bajaj Enterprises, LLC,
    a Maryland limited liability company, over which Mr. Bajaj exercises voting
    and investment control, and 299,327 of these shares are owned by
    Mr. Bajaj's spouse. These shares exclude 701,754 shares owned by family
    trusts over which Mr. Bajaj does not exercise any voting or investment
    control.

(d) Information regarding beneficial ownership by Mr. Alexander, our former
    Senior Vice President--Finance, Mr. Harvey, our former Senior Vice
    President--Software Development, and Mr. McManus, our former Senior Vice
    President, Secretary and Treasurer, is based on information known to us as
    of September 30, 1999.

(e) Each of Messrs. Canfield and Rauner is a principal of GTCR and therefore may
    be deemed to share investment and voting control over the shares of our
    common stock held, directly or indirectly, by GTCR. Each of
    Messrs. Canfield and Rauner disclaims beneficial ownership of the shares of
    our common stock held by GTCR.

(f) All of these shares are beneficially owned by Davidson Technology Investment
    Group, L.L.C., a Delaware limited liability company, over which Mr. Davidson
    exercises voting and investment control.

                                       65
<PAGE>
                              SELLING STOCKHOLDERS

    We have set forth in the following table information about the beneficial
ownership of our common stock as of September 30, 1999 by each selling
stockholder. The amounts shown in the table assume no exercise of the
over-allotment option to purchase 645,000 additional shares of common stock
granted to the underwriters by the selling stockholders. If the over-allotment
option is exercised, the 645,000 shares will be sold pro rata by the selling
stockholders in the same percentages applicable to the shares listed below,
except that Kavelle Bajaj will not sell any shares through the exercise of the
over-allotment option, and the other selling stockholders will be allowed to
sell their pro rata share of the shares that Kavelle Bajaj would have otherwise
been entitled to sell.

<TABLE>
<CAPTION>
                                                                     SHARES OF
                                                   SHARES OF          COMMON           SHARES OF
                                                 COMMON STOCK          STOCK         COMMON STOCK
                                              BENEFICIALLY OWNED       BEING      BENEFICIALLY OWNED
                                                BEFORE OFFERING       OFFERED        AFTER CLOSING
                                             ---------------------   ---------   ---------------------
SELLING STOCKHOLDER                            NUMBER     PERCENT     NUMBER       NUMBER     PERCENT
- -------------------                          ----------   --------   ---------   ----------   --------
<S>                                          <C>          <C>        <C>         <C>          <C>
GTCR Fund VI, L.P. (a).....................  13,110,085    43.9%     2,265,847   10,844,238    33.3%
GTCR VI Executive Fund, L.P. (a)...........      97,570     *           19,828       77,742     *
GTCR Associates VI (a).....................      30,815     *            6,263       24,552     *
Kavelle Bajaj (b)..........................   2,993,271     *          299,327    2,693,944      8.2
The J. Sunny Bajaj Trust (c)...............     350,877      1.1        35,087      315,790      1.0
The Rueben Bajaj Trust (c).................     350,877      1.1        35,087      315,790      1.0
William L. Rosenfeld (d)...................     350,877      1.1        60,746      290,131     *
Jack Pearlstein (e)........................      98,245     *           33,333       64,912     *
Toby Tobaccowala (f).......................     193,182     *           33,445      159,737     *
Rodrigo Sanchez (d)........................      24,366     *            4,253       20,113     *
Russell Zach (d)...........................      24,366     *            4,253       20,113     *
Silicon Valley Bancshares..................      14,620     *            2,531       12,089     *
</TABLE>

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

*   Less than 1%.

(a) Philip A. Canfield and Bruce V. Rauner, two of our directors, are principals
    of the GTCR entities. Also, the GTCR entities entered into a purchase
    agreement with us by which they purchased shares of our common stock which
    places certain continuing obligations on us. We've described those
    obligations and other relationships with the GTCR entities under "Certain
    Relationships and Transactions."

(b) Kavelle Bajaj is the spouse of Ken S. Bajaj, our President and Chief
    Executive Officer. Please see "Management," "Certain Relationships and
    Transactions" and "Principal Stockholders" for further information regarding
    our relationships with Mr. Bajaj. All of the shares listed, except those to
    be sold in this offering, are owned by Bajaj Enterprises, LLC, a Maryland
    limited liability company, over which Kavelle Bajaj may be deemed to
    exercise voting and investment control.

(c) The beneficiaries of these trusts are adult children of Ken S. Bajaj, our
    President and Chief Executive Officer, and Kavelle Bajaj. Ken and Kavelle
    Bajaj do not exercise any voting or investment control over these trusts and
    disclaim beneficial ownership of the shares held by them.

(d) Mr. Rosenfeld, Mr. Sanchez and Mr. Zach are employees of AppNet.

(e) Jack Pearlstein is our Senior Vice President, Chief Financial Officer and
    Treasurer.

(f) Toby Tobaccowala is our Executive Vice President--e-Business Services.

                                       66
<PAGE>
                          DESCRIPTION OF CAPITAL STOCK

    Our authorized capital stock of consists of 75,000,000 shares of common
stock, par value $0.0005 per share, and 5,000,000 shares of preferred stock, par
value $0.01 per share. Upon consummation of this offering, there will be issued
and outstanding 32,497,027 shares of common stock. As of September 30, 1999,
there were 178 stockholders of record. In addition,

    - 3,636,756 shares of common stock have been reserved for issuance in
      connection with AppNet's stock incentive plans;

    - 70,175 shares of common stock have been reserved for issuance in
      connection with warrants issued to Silicon Valley Bank and Smart
      Technology, L.L.C.;

    - 828,702 shares of common stock reserved for issuance in connection with
      outstanding promissory notes convertible into shares of our common stock
      at a weighted average conversion price of $11.20 per share;

    - 811,626 shares of common stock have been reserved or will be reserved for
      issuance in connection with contingent payments payable to the former
      owners of four of the companies we acquired, New Media Publishing, Sigma6,
      Salzinger & Company and Internet Outfitters, assuming that the market
      price of our common stock at the time the contingent payments are made is,
      in the case of Sigma6, $50.00, which is the price to the public in this
      offering; and

    - 121 shares of preferred stock designated as Class A Preferred Stock have
      been reserved for issuance in connection with a warrant issued to Silicon
      Valley Bank.

COMMON STOCK

    Each share of our common stock is identical in all respects and entitles the
holder thereof to the same rights and privileges enjoyed by all other holders of
shares of common stock, and subjects them to the same qualifications,
limitations and restrictions to which all such other holders are subject.

    VOTING RIGHTS.  Holders of our common stock are entitled to one vote per
share on all matters to be voted on by AppNet's stockholders and may act by
written consent if the consent is signed by the holders of common stock having
at least the minimum votes necessary to authorize or take such action at
meetings. Holders of common stock do not have cumulative rights, so that holders
of a plurality of the shares of common stock present at a meeting at which a
quorum is present are able to elect all of AppNet's directors eligible for
election in a given year. The holders of a majority of the voting power of the
issued and outstanding common stock constitutes a quorum. Our certificate of
incorporation provides that a vote of two-thirds of the holders of our issued
and outstanding common stock is required to remove a director or amend our
bylaws.

    DIVIDENDS.  Holders of our common stock are entitled to receive ratably such
dividends, if any, as are declared by AppNet's Board of Directors out of funds
legally available for the declaration of dividends, subject to the preferential
rights of any holder of preferred stock that may from time to time be
outstanding. The terms of our credit facilities restrict AppNet's ability to pay
dividends on the common stock.

    LIQUIDATION.  Upon the liquidation, dissolution or winding up of AppNet, the
holders of our common stock are entitled to share pro rata in the distribution
of all of AppNet's assets available for distribution after satisfaction of all
of AppNet's liabilities and the payment of the liquidation preference of any
preferred stock that may be outstanding.

    OTHER PROVISIONS.  The holders of our common stock have no preemptive or
other subscription rights to purchase common stock, and there are no redemptive
rights or sinking fund provisions. The holders of our common stock are not
liable for any calls or assessments.

                                       67
<PAGE>
    REGISTRATION RIGHTS.  AppNet is a party to a registration agreement, dated
as of June 29, 1998, to which substantially all of the stockholders of AppNet
who acquired their shares prior to our June 1999 initial public offering are
party, which gives the holders of a majority of the common stock issued to GTCR
and Smart Technology under the purchase agreement with GTCR and Smart Technology
a conditional right to demand registration of all or any portion of their common
stock. The other stockholders of AppNet who are party to the registration
agreement have the right to include all or any portion of their AppNet common
stock on registration statements filed by AppNet to register the common stock
issued to GTCR and Smart Technology under the purchase agreement with GTCR and
Smart Technology. Subject to various conditions, all of the stockholders of
AppNet who are party to the registration agreement have the right to include all
or any portion of their AppNet common stock on registration statements that we
file on our own behalf. These rights cover substantially all of the shares of
our common stock issued prior to our June 1999 initial public offering, and will
also cover any additional shares obtained by the parties to the registration
agreement.

    In addition, our acquisition agreement with Arbor gave the former
stockholders of Arbor rights to have their shares of our common stock included
in any registration statement we file.

PREFERRED STOCK

    AppNet's certificate of incorporation, a copy of which is filed as an
exhibit to the registration statement of which this prospectus is a part,
authorizes AppNet's Board of Directors to issue preferred stock in one or more
series and to establish the number of shares to be included in each such series
and to fix the designations, powers, preferences and rights of the shares of
each such series and any qualifications, limitations or restrictions of each
such series. Because the Board of Directors has the power to establish the
preferences and rights of the shares of any such series of preferred stock, it
may afford the holders of any such series of preferred stock preferences, powers
and rights, including voting rights, senior to the rights of the holders of
common stock. The issuance of preferred stock may have the effect of delaying,
deferring or preventing a change in control of AppNet.

    The Board of Directors has established a class of preferred stock designated
Class A Preferred Stock, currently consisting of 121 shares reserved for
issuance upon exercise of a warrant issued to a single holder in June 1998. The
Class A Preferred Stock has the dividend, redemption, liquidation and other
rights described below.

    VOTING RIGHTS.  The Class A Preferred Stock is not entitled to any voting
rights, other than those granted by the Delaware General Corporation Law,
provided that each holder of Class A Preferred Stock is entitled to notice of
all stockholders meetings at the same time and in the same manner to which all
stockholders entitled to vote at such meetings are entitled.

    DIVIDEND RIGHTS.  When and as declared by AppNet's Board of Directors and to
the extent permitted under the Delaware General Corporation Law, holders of
Class A Preferred Stock are entitled to preferential cash dividends. Dividends
on each share of Class A Preferred Stock accrue on a daily basis at the rate of
6% per annum on the liquidation value per share of $1,000, plus all accumulated
and unpaid dividends from and including the date of issuance of such share to
and including the first to occur of:

    - the date on which the liquidation value of such share, plus all accrued
      and unpaid dividends, is paid to the holder in connection with the
      liquidation of AppNet or the redemption of such share by AppNet; and

    - the date on which such share is otherwise acquired by AppNet.

                                       68
<PAGE>
    Dividends on the Class A Preferred Stock accrue whether or not they have
been declared and whether or not there are profits, surplus or other funds
legally available for the payment of dividends. To the extent dividends are not
paid on March 31, June 30, September 30, and December 31 of each year for
Class A Preferred Stock, the accrued dividends will accumulate on such dates.
All accrued and unpaid dividends will be fully paid or declared with funds
irrevocably set apart for payment before we are entitled to pay any dividends,
distributions, redemptions or other payments with respect to any stock of AppNet
other than Class A Preferred Stock.

    DISTRIBUTION OF PARTIAL DIVIDEND PAYMENTS.  Unless otherwise provided, if at
any time AppNet pays less than the total amount of accrued dividends with
respect to the Class A Preferred Stock, the payment will be distributed pro rata
among the holders of the class of preferred stock, based upon the aggregate
accrued but unpaid dividends on the shares held by each such holder.

    LIQUIDATION.  Upon any liquidation, dissolution or winding up of AppNet,
voluntary or involuntary, each holder of Class A Preferred Stock will be
entitled to an amount in cash equal to the aggregate liquidation value of all
shares held by the holder, plus all accrued and unpaid dividends thereon, before
any distribution or payment is made upon any securities that are junior to the
Class A Preferred Stock. The holders of Class A Preferred Stock will not be
entitled to receive any further payment. Prior to the time of any liquidation,
dissolution or winding up of AppNet, to the extent permitted by applicable law,
AppNet will declare for payment all accrued and unpaid dividends with respect to
the Class A Preferred Stock.

    PRIORITY OF PREFERRED STOCK.  So long as any Class A Preferred Stock remains
outstanding, without the prior written consent of the holders of a majority of
the outstanding shares of such preferred stock, AppNet will not be entitled, nor
will it permit any subsidiary, to redeem, purchase or otherwise acquire directly
or indirectly any securities that are junior to the Class A Preferred Stock, nor
is AppNet entitled directly or indirectly to pay or declare any dividend or make
any distribution upon any securities that are junior to the Class A Preferred
Stock. However, even if any such shares of Class A Preferred Stock are
outstanding, AppNet is entitled to purchase shares of its common stock under an
arrangement approved by the Board of Directors from present or former employees
of AppNet or its subsidiaries.

    REDEMPTION RIGHTS.

        OPTIONAL REDEMPTIONS BY APPNET. At any time and from time to time,
    AppNet may redeem all or any portion of any outstanding shares of Class A
    Preferred Stock. Upon any such redemption, AppNet will pay a price per share
    equal to the liquidation value thereof, plus all accrued and unpaid
    dividends thereon. No redemption may be made for less than 1,000 shares or
    such lesser number of shares then outstanding.

        REDEMPTIONS AFTER PUBLIC OFFERINGS. At the written request of the
    holders of a majority of the shares of Class A Preferred Stock then
    outstanding, AppNet will apply the net cash proceeds from any public
    offering of AppNet common stock under an effective registration statement
    under the Securities Act to redeem shares of Class A Preferred Stock at the
    liquidation value of $1,000 per share, plus all accrued and unpaid dividends
    thereon. Such redemption must take place not more than five days after
    AppNet receives such public offering proceeds.

        REDEMPTION PAYMENTS. On any date on which Class A Preferred Stock is to
    be redeemed, if AppNet's funds that are legally available for redemption are
    insufficient to redeem the total number of shares to be redeemed, those
    funds which are legally available will be used to redeem the maximum
    possible number of shares pro rata among the holders of the shares to be
    redeemed. At any time thereafter when additional funds are legally available
    for redemption of shares by

                                       69
<PAGE>
    AppNet, such funds will be immediately used to redeem the balance of the
    shares which AppNet is obligated to redeem.

        SPECIAL REDEMPTIONS. If either (a) a change in ownership, which is
    defined as the transfer of more than 50% of the outstanding common stock to
    a person or group of persons other than any stockholder of AppNet as of
    June 29, 1998, has occurred or AppNet obtains knowledge that a change in
    ownership is proposed or (b) a fundamental change, which is defined as the
    transfer of more than 50% of AppNet's assets or mergers or consolidations
    involving AppNet where Appnet is not the surviving party, is proposed to
    occur, then the holder or holders of a majority of the shares of Class A
    Preferred Stock then outstanding may require AppNet to redeem all or any
    portion of the Class A Preferred Stock owned by such holders at a price per
    share equal to the liquidation value thereof, plus all accrued and unpaid
    dividends thereon, by giving written notice of such election. AppNet must
    give all holders of Class A Preferred Stock prompt notice of any proposed
    change in ownership or fundamental change and notice of any election to
    redeem shares because of such changes.

ANTI-TAKEOVER EFFECTS OF APPNET'S CERTIFICATE OF INCORPORATION AND BYLAWS AND
PROVISIONS OF DELAWARE LAW

    AppNet's certificate of incorporation and bylaws and Section 203 of the
Delaware General Corporation Law contain provisions that may make the
acquisition of control of AppNet by means of a tender offer, open market
purchase, proxy fight or otherwise, more difficult.

    BUSINESS COMBINATIONS.  Our certificate of incorporation provides that we
are subject to Section 203 of the Delaware General Corporation Law. In general,
subject to specific exceptions, Section 203 of the Delaware General Corporation
Law prohibits a publicly held Delaware corporation from engaging in a "business
combination" with an "interested stockholder" for a period of three years after
the date of the transaction in which the person became an interested
stockholder, unless:

    - upon consummation of the transaction, the interested stockholder owned 85%
      of the voting stock of the corporation outstanding at the time the
      transaction commenced, excluding for purposes of determining the number of
      shares outstanding those shares owned by persons who are directors and
      also officers and employee stock plans in which employee participants do
      not have the right to determine confidentially whether shares held subject
      to the plan will be tendered in a tender or exchange offer;

    - the business combination is, or the transaction in which such person
      became an interested stockholder was, approved by the board of directors
      of the corporation before the stockholder became an interested
      stockholder; or

    - the business combination is approved by the board of directors of the
      corporation and authorized at an annual or special meeting of the
      corporation's stockholders by the affirmative vote of at least 66 2/3% of
      the outstanding voting stock which is not owned by the interested
      stockholder.

    For purposes of Section 203, a "business combination" includes mergers,
asset sales and other transactions resulting in a financial benefit to the
interested stockholder; an "interested stockholder" is a person who, together
with affiliates and associates, owns, or, in the case of affiliates and
associates of the issuer, did own within the last three years, 15% or more of
the corporation's voting stock. The restrictions set forth in Section 203 will
not apply to a business combination with an interested stockholder who became an
interested stockholder at a time when the restrictions of Section 203 did not
apply to AppNet.

    STOCKHOLDER NOMINATIONS AND PROPOSALS.  Our bylaws provide that stockholders
must follow an advance notification procedure for stockholder nominations of
candidates for the Board of Directors

                                       70
<PAGE>
and for other stockholder business to be conducted at an annual meeting. For
business a stockholder wishes to bring before an annual meeting of stockholders,
the stockholder must deliver notice to AppNet not less than 60 days nor more
than 90 days prior to the date of the anniversary of the previous year's annual
meeting. For nominations of persons for election to our Board of Directors at an
annual meeting, a stockholder must deliver notice to AppNet not less than 90
days prior to the date of the anniversary of the previous year's annual meeting
unless the annual meeting is delayed, in which case the stockholder must deliver
the notice not less than 90 days prior to such meeting nor more than 10 days
after we mailed notice of such meeting or public disclosure of the annual
meeting was made. These advance notification provisions in our bylaws could
preclude the conduct of business at a meeting or a nomination for the election
of directors if the proper procedures are not followed. Such provisions could
operate to delay, defer or prevent a change in control of AppNet.

    AUTHORIZED AND UNISSUED PREFERRED STOCK.  There are 5,000,000 authorized and
unissued shares of preferred stock of which 121 shares are reserved for issuance
as Class A Preferred Stock. Our certificate of incorporation authorizes the
Board of Directors to issue one or more series of preferred stock and to
establish the designations, powers, preferences and rights of each series of
preferred stock. The existence of authorized and unissued preferred stock may
enable the Board of Directors to render more difficult or to discourage an
attempt to obtain control of AppNet by means of a merger, tender offer, proxy
contest or otherwise. For example, if in the due exercise of its fiduciary
obligations, the Board of Directors were to determine that a takeover proposal
is not in AppNet's best interests, the Board of Directors could cause shares of
preferred stock to be issued without stockholder approval in one or more private
offerings or other transactions that might dilute the voting or other rights of
the proposed acquiror or insurgent stockholder or stockholder group or create a
substantial voting block in institutional or other hands that might undertake to
support the position of the incumbent Board of Directors.

    ABSENCE OF CUMULATIVE VOTING.  Our certificate of incorporation does not
include a provision for cumulative voting in the election of directors. Under
cumulative voting, a minority stockholder holding a sufficient number of shares
may be able to ensure the election of one or more directors. The absence of
cumulative voting may have the effect of limiting the ability of minority
stockholders to effect changes in our Board of Directors and, as a result, may
operate to delay, defer or prevent a change in control of AppNet.

    REMOVAL OF DIRECTORS; VACANCIES.  Our certificate of incorporation states
that, subject to the rights of the holders of our preferred stock, directors may
be removed at any time by two-thirds stockholder vote. In addition, a majority
of the directors then in office will be able to fill board vacancies and newly
created directorships resulting from any increase in the size of our Board of
Directors. This is true even if those directors do not constitute a quorum or if
only one director is left in office. These provisions could prevent
stockholders, including parties who want to take over or acquire AppNet, from
removing incumbent directors and filling the resulting vacancies with their own
nominee.

    SPECIAL MEETINGS OF STOCKHOLDERS.  Our bylaws provide that special meetings
of AppNet's stockholders may be called only by the Board of Directors of AppNet.
This provision may render it more difficult for stockholders to take action
opposed by the Board of Directors.

INDEMNIFICATION AND LIMITATION OF LIABILITY

    AppNet's bylaws provide that AppNet will indemnify each of its directors,
officers, employees and agents to the fullest extent permitted by law. The
certificate of incorporation limits the liability of AppNet's directors and
stockholders to AppNet for monetary damages. The certificate of incorporation
also provides that AppNet may purchase insurance on behalf of its directors,
officers, employees and agents against liabilities they may incur in such
capacity, whether or not AppNet would have the power to indemnify against such
liabilities.

TRANSFER AGENT AND REGISTRAR

    The transfer agent and registrar for our common stock is BankBoston, N.A.

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<PAGE>
                        SHARES ELIGIBLE FOR FUTURE SALE

    Future sales of substantial amounts of shares of our common stock in the
public market could adversely affect prevailing market prices. Only a limited
number of shares will be available for sale shortly after this offering because
of contractual and legal restrictions on resale described below. Sales of
substantial amounts of common stock in the public market after the restrictions
lapse could adversely affect the prevailing market price.

    Upon the completion of this offering, 32,497,027 shares of common stock will
be outstanding (based on shares outstanding as of September 30, 1999), including
our sale of 1,500,000 shares of common stock in this offering. A total of
approximately 11,500,000 shares, including the 4,300,000 shares sold in this
offering, will be freely tradable without restriction under the Securities Act.
Of the remaining shares outstanding upon completion of the offering,
approximately 21,000,000 shares of common stock held by existing stockholders
are restricted securities in that they may be sold in the public market only if
registered or if they qualify for an exemption from registration under the
Securities Act or Rules 144 or 701 under the Securities Act.

    Our directors, our officers, most of the former owners of all the businesses
we acquired, GTCR, Smart Technology and certain of our other stockholders, who
collectively own approximately 24,500,000 shares of our common stock, entered
into lock-up agreements in connection with our initial public offering providing
that they will not offer, transfer or dispose of any of the shares of common
stock through December 15, 1999, without the prior written consent of Credit
Suisse First Boston Corporation.

    In connection with this offering, our directors, our officers and the
selling stockholders, who collectively will own approximately 15,000,000 shares
of our common stock after this offering, will be bound by lock-up arrangements
providing that they will not offer, transfer or dispose of any shares of common
stock for 90 days after the date of the underwriting agreement without the prior
written consent of Credit Suisse First Boston Corporation.

    Credit Suisse First Boston Corporation may release all or any portion of the
securities subject to these lock-up arrangements. Credit Suisse First Boston
Corporation currently has no plans to release any portion of the securities
subject to lock-up arrangements. When determining whether or not to release
shares from the lock-up arrangements, Credit Suisse First Boston Corporation
will consider, among other factors, the stockholder's reasons for requesting the
release, the number of shares for which the release is being requested and
market conditions at the time. Following the expiration of these lock-up
periods, additional shares of common stock will be available for sale in the
public market subject to compliance with Rule 144 or Rule 701.

    In general, under Rule 144 as currently in effect, if a minimum of one year
has elapsed since the later of the date of acquisition of the restricted
securities from the issuer or from an affiliate of the issuer, a person, or
persons whose shares of common stock are aggregated, including persons who may
be deemed affiliates of AppNet, would be entitled to sell within any three-month
period a number of shares of AppNet common stock that does not exceed the
greater of

    (1) one percent of the then-outstanding shares of AppNet common stock, which
       equals approximately 324,970 shares immediately after this offering, or

    (2) the average weekly trading volume during the four calendar weeks
       preceding the date on which notice of the sale is filed with the
       Securities and Exchange Commission.

    Sales under Rule 144 are also subject to restrictions as to the manner of
sale, notice requirements and the availability of current public information
about AppNet. In addition, under Rule 144(k), if a period of at least two years
has elapsed since the later of the date restricted securities were acquired from
AppNet or the date they were acquired from an affiliate of AppNet, a stockholder
who is not an

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<PAGE>
affiliate of AppNet at the time of sale and who has not been an affiliate of
AppNet for at least three months prior to the sale would be entitled to sell
shares of our common stock in the public market immediately without compliance
with the requirements under Rule 144 set forth above. If shares are transferred
during this period, the holding period requirement may be satisfied by including
the time period during which such shares were previously held. The foregoing
summary of Rule 144 is not intended to be a complete description thereof.

    In addition, any of our employees, directors, officers or consultants who
acquired shares under a written compensatory plan or contract may be entitled to
rely on the resale provisions of Rule 701 of the Securities Act without having
to comply with the public information, holding period, volume limitation or
notice provisions of Rule 144, and affiliates of AppNet may be entitled to sell
their Rule 701 shares without having to comply with the holding period
restrictions of Rule 144, in each case, commencing 90 days after the date of
this prospectus, although the contractual limitations will continue through the
180th day following the date of this prospectus.

    In addition to the restrictions on transfer described above, our executives
with whom we have entered into senior management agreements are subject to
restrictions on the transfer of shares of our common stock owned by them as of
the date they entered into the senior management agreement.

    We are a party to a registration agreement, dated as of June 29, 1998, which
gives the holders of a majority of the common stock issued to GTCR and Smart
Technology under the purchase agreement with GTCR and Smart Technology a
conditional right to demand registration of all or any portion of this common
stock. Substantially all of our stockholders who acquired their shares prior to
our June 1999 initial public offering have the right to include all or any
portion of their AppNet common stock on registration statements we file to
register the common stock issued to GTCR and Smart Technology under the purchase
agreement with GTCR and Smart Technology. Subject to specific conditions, the
stockholders who are party to the registration agreement have the right to
include all or any portion of their AppNet common stock on registration
statements we file on our own behalf. Registration of these shares of our common
stock would permit the sale of these shares without regard to the restrictions
of Rule 144. In addition, our acquisition agreement with Arbor gave the former
stockholders of Arbor rights to have their shares of our common stock included
in any registration statement.

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<PAGE>
              U.S. FEDERAL TAX CONSIDERATIONS FOR NON-U.S. HOLDERS

    The following is a general discussion of the principal United States federal
income and estate tax consequences of the ownership and disposition of common
stock by a non-U.S. holder. As used in this prospectus, a non-U.S. holder is
defined as a holder that for United States federal income tax purposes is an
individual or entity other than:

    - a citizen or individual resident of the United States;

    - a corporation or partnership created or organized in or under the laws of
      the United States or of any political subdivision thereof, other than a
      partnership treated as foreign under U.S. Treasury regulations;

    - an estate the income of which is subject to U.S. federal income taxation
      regardless of its source; or

    - a trust if a U.S. court is able to exercise primary supervision over the
      administration of the trust and one or more U.S. persons have the
      authority to control all substantial decisions of the trust.

    An individual may, subject to a number of exceptions, be deemed to be a
resident alien, as opposed to a nonresident alien, by virtue of being present in
the United States for at least 31 days in the calendar year and for an aggregate
of at least 183 days during a three-year period ending in the current calendar
year, counting for such purposes all of the days present in the current year,
one-third of the days present in the immediately preceding year and one-sixth of
the days present in the second preceding year. Resident aliens are subject to
U.S. federal income tax as if they were U.S. citizens.

    This discussion does not address all aspects of United States federal income
and estate taxes that may be relevant to non-U.S. holders in light of their
personal circumstances, including the fact that in the case of a non-U.S. holder
that is a partnership, the U.S. tax consequences of holding and disposing of
shares of common stock may be affected by determinations made at the partner
level, or that may be relevant to non-U.S. holders which may be subject to
special treatment under United States federal income tax laws such as insurance
companies, tax-exempt organizations, financial institutions, dealers in
securities and holders of securities held as part of a "straddle," "hedge" or
"conversion transaction." This discussion also does not address U.S. state or
local or foreign tax consequences. Furthermore, this discussion is based on
provisions of the Internal Revenue Code of 1986, as amended, existing and
proposed regulations promulgated thereunder and administrative and judicial
interpretations thereof, all as of the date hereof, and all of which are subject
to change, possibly with retroactive effect. The following summary is included
herein for general information. ACCORDINGLY, INVESTORS ARE URGED TO CONSULT
THEIR TAX ADVISERS REGARDING THE UNITED STATES FEDERAL, STATE, LOCAL AND
NON-U.S. INCOME AND OTHER TAX CONSEQUENCES OF ACQUIRING, HOLDING AND DISPOSING
OF SHARES OF COMMON STOCK.

DIVIDENDS

    We do not anticipate paying cash dividends on our common stock in the
foreseeable future. In the event, however, that dividends are paid on shares of
our common stock, dividends paid to a non-U.S. holder of common stock generally
will be subject to withholding of United States federal income tax at a 30%
rate, or such lower rate as may be provided by an income tax treaty between the
United States and a foreign country if the non-U.S. holder is treated as a
resident of such foreign country within the meaning of the applicable treaty.
Non-U.S. holders should consult their tax advisors regarding their entitlement
to benefits under a relevant income tax treaty.

    Dividends that are effectively connected with a non-U.S. holder's conduct of
a trade or business in the United States or, if an income tax treaty applies,
attributable to a permanent establishment in the United States, are generally
subject to U.S. federal income tax on a net income basis at regular graduated
rates, but are not generally subject to the 30% withholding tax if the non-U.S.
holder files

                                       74
<PAGE>
the appropriate U.S. Internal Revenue Service form with the payor, which form
under U.S. Treasury regulations generally requires the non-U.S. holder to
provide a U.S. taxpayer identification number. Any such U.S. trade or business
income received by a non-U.S. holder that is a corporation may also be subject
to an additional "branch profits tax" at a 30% rate or such lower rate as may be
specified by an applicable income tax treaty.

    Under currently applicable U.S. Treasury regulations, dividends paid to an
address in a foreign country are presumed, absent actual knowledge to the
contrary, to be paid to a resident of such country for purposes of the
withholding discussed above and for purposes of determining the applicability of
a tax treaty rate. Under U.S. Treasury regulations generally effective for
payments made after December 31, 2000, however, a non-U.S. holder of our common
stock who wishes to claim the benefit of an applicable treaty rate generally
will be required to satisfy applicable certification and other requirements. In
addition, under these regulations, in the case of our common stock held by a
foreign partnership, the certification requirement will generally be applied to
the partners of the partnership and the partnership will be required to provide
specified information, including a United States taxpayer identification number.
The regulations generally effective for payments made after December 31, 2000,
also provide look-through rules for tiered partnerships. Further, the Internal
Revenue Service intends to issue regulations under which a foreign trustee or
foreign executor of a U.S. or foreign trust or estate, depending on the
circumstances, will be required to furnish the appropriate withholding
certificate on behalf of the beneficiaries, grantor trust or estate, as the case
may be.

    A non-U.S. holder of our common stock that is eligible for a reduced rate of
U.S. withholding tax under an income tax treaty may obtain a refund of any
excess amounts withheld by filing an appropriate claim for a refund with the
Internal Revenue Service.

    The U.S. Treasury regulations generally effective for payments made after
December 31, 2000 also provide special rules for dividend payments made to
foreign intermediaries, U.S. or foreign wholly owned entities that are
disregarded for U.S. federal income tax purposes and entities that are treated
as fiscally transparent in the United States, the applicable income tax treaty
jurisdiction, or both. In addition, income tax treaty benefits may be denied to
foreigners receiving income derived through a partnership, or otherwise fiscally
transparent entity, in certain circumstances. Prospective investors should
consult with their own tax advisers concerning the effect, if any, of these
provisions on an investment in our common stock.

GAIN ON DISPOSITION OF COMMON STOCK

    A non-U.S. holder generally will not be subject to U.S. federal income tax
in respect of gain recognized on a disposition of our common stock unless:

    - the gain is U.S. trade or business income, in which case, the branch
      profits tax described above may also apply to a corporate non-U.S. holder;

    - the non-U.S. holder is an individual who holds our common stock as a
      capital asset within the meaning of Section 1221 of the Internal Revenue
      Code, is present in the United States for 183 or more days in the taxable
      year of the disposition and meets other requirements;

    - the non-U.S. holder is subject to tax under the provisions of the U.S. tax
      law applicable to certain United States expatriates; or

    - AppNet is or has been a "U.S. real property holding corporation" for
      federal income tax purposes at any time during the shorter of the
      five-year period preceding such disposition or the period that the
      non-U.S. holder held our common stock.

                                       75
<PAGE>
Generally, a corporation is a "U.S. real property holding corporation" if the
fair market value of its "U.S. real property interests" equals or exceeds 50% of
the sum of the fair market value of its worldwide real property interests plus
its other assets used or held for use in a trade or business. We believe that we
have not been, are not currently, and do not anticipate becoming, a "U.S. real
property holding corporation" for U.S. federal income tax purposes. The tax with
respect to stock in a "U.S. real property holding corporation" does not apply to
a non-U.S. holder whose holdings, direct and indirect, at all times during the
applicable period, constituted 5% or less of our common stock, provided that our
common stock was regularly traded on an established securities market. If we
were, or were to become, a U.S. real property holding corporation, we believe
that our common stock would be treated as "regularly traded."

    If a non-U.S. holder who is an individual is subject to tax on gain which is
U.S. trade or business income, such individual generally will be taxed on the
net gain derived from a sale of common stock under regular graduated United
States federal income tax rates. If an individual non-U.S. holder is subject to
tax because such individual holds our common stock as a capital asset, is
present in the United States for 183 or more days in the taxable year of the
disposition and meets other requirements, such individual generally will be
subject to a flat 30% tax on the gain derived from a sale, which may be offset
by United States capital losses, notwithstanding the fact that such individual
is not considered a resident alien of the United States. Thus, individual
non-U.S. holders who have spent (or expect to spend) more than a DE MINIMIS
period of time in the United States in the taxable year in which they
contemplate a sale of common stock are urged to consult their tax advisers prior
to the sale concerning the U.S. tax consequences of such sale.

    If a non-U.S. holder that is a foreign corporation is subject to tax on gain
which is U.S. trade or business income, it generally will be taxed on its net
gain under regular graduated United States federal income tax rates and, in
addition, will be subject to the branch profits tax equal to 30% of its
"effectively connected earnings and profits," within the meaning of the Internal
Revenue Code for the taxable year, as adjusted for specific items, unless it
qualifies for a lower rate under an applicable tax treaty.

FEDERAL ESTATE TAX

    Common stock owned or treated as owned by an individual who is neither a
United States citizen nor a United States resident, as defined for United States
federal estate tax purposes, at the time of death will be included in the
individual's gross estate for United States federal estate tax purposes, unless
an applicable estate tax or other treaty provides otherwise and, therefore, may
be subject to United States federal estate tax.

INFORMATION REPORTING AND BACKUP WITHHOLDING TAX

    Under U.S. Treasury regulations, we must report annually to the Internal
Revenue Service and to each non-U.S. holder the amount of dividends paid to such
holder and the tax withheld with respect to such dividends. Copies of the
information returns reporting such dividends and withholding may also be made
available to the tax authorities in the country in which the non-U.S. holder is
a resident under the provisions of an applicable income tax treaty or agreement.

    Currently, United States backup withholding, which generally is a
withholding tax imposed at the rate of 31% on payments to persons that fail to
furnish specified information under the United States information reporting
requirements, generally will not apply:

    - to dividends paid to non-U.S. holders that are subject to the 30%
      withholding discussed above, or that are not so subject because a tax
      treaty applies that reduces or eliminates such 30% withholding; or

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<PAGE>
    - before January 1, 2001, to dividends paid to a non-U.S. holder at an
      address outside of the United States unless the payor has actual knowledge
      that the payee is a U.S. holder.

Backup withholding and information reporting generally will apply to dividends
paid to addresses inside the United States on shares of our common stock to
beneficial owners that are not "exempt recipients" and that fail to provide
identifying information in the manner required.

    The payment of the proceeds of the disposition of our common stock by a
holder to or through the U.S. office of a broker or through a non-U.S. branch of
a U.S. broker generally will be subject to information reporting and backup
withholding at a rate of 31% unless the holder either certifies its status as a
non-U.S. holder under penalties of perjury or otherwise establishes an
exemption. The payment of the proceeds of the disposition by a non-U.S. holder
of common stock to or through a non-U.S. office of a non-U.S. broker will not be
subject to backup withholding or information reporting unless the non-U.S.
broker has particular types of U.S. relationships. In the case of the payment of
proceeds from the disposition of our common stock effected by a foreign office
of a broker that is a U.S. person or a U.S. related person, existing regulations
require information reporting on the payment unless the broker receives a
statement from the owner, signed under penalty of perjury, certifying its
non-U.S. status or the broker has documentary evidence in its files as to the
non-U.S. holder's foreign status and the broker has no actual knowledge to the
contrary. For this purpose, a U.S. related person is defined as:

    - a "controlled foreign corporation" for U.S. federal income tax purposes;
      or

    - a foreign person 50% or more of whose gross income from all sources for
      the three-year period ending with the close of its taxable year preceding
      the payment, or for such part of the period that the broker has been in
      existence, is derived from activities that are effectively connected with
      the conduct of a U.S. trade or business.

    The U.S. Treasury regulations generally effective for payments made after
December 31, 2000 alter the foregoing rules. Among other things, such
regulations provide presumptions under which a non-U.S. holder is subject to
backup withholding at the rate of 31% and information reporting unless we
receive certification from the holder of non-U.S. status. Depending on the
circumstances, this certification will need to be provided:

    - directly by the non-U.S. holder;

    - in the case of a non-U.S. holder that is treated as a partnership or other
      fiscally transparent entity, by the partners, stockholders or other
      beneficiaries of such entity; or

    - by qualified financial institutions or other qualified entities on behalf
      of the non-U.S. holder.

    Any amounts withheld under the backup withholding rules from a payment to a
non-U.S. holder will be refunded, or credited against the holder's U.S. federal
income tax liability, if any, provided that the required information is
furnished to the Internal Revenue Service.

                                       77
<PAGE>
                                  UNDERWRITING

    Under an underwriting agreement dated November 11, 1999, we and the selling
stockholders have agreed to sell to the underwriters named below, for whom
Credit Suisse First Boston Corporation, Hambrecht & Quist LLC, First Union
Securities, Inc. and The Robinson-Humphrey Company, LLC are acting as
representatives, the following respective numbers of shares of our common stock:

<TABLE>
<CAPTION>
                                                               NUMBER
                                                              OF SHARES
UNDERWRITERS                                                  ---------
<S>                                                           <C>
Credit Suisse First Boston Corporation......................  1,435,000
Hambrecht & Quist LLC.......................................  1,265,000
First Union Securities, Inc.................................    585,000
The Robinson-Humphrey Company, LLC..........................    415,000
Allen & Company Incorporated................................    100,000
E*Offering Corp.............................................    100,000
Invemed Associates LLC......................................    100,000
Legg Mason Wood Walker, Incorporated........................    100,000
Charles Schwab & Co., Inc...................................    100,000
Volpe Brown Whelan & Company, LLC...........................    100,000
                                                              ---------
    Total...................................................  4,300,000
                                                              =========
</TABLE>

    The underwriting agreement provides that the underwriters are obligated to
purchase all of the shares of our common stock offered in this offering if any
are purchased, other than those shares covered by the over-allotment option we
describe below. The underwriting agreement also provides that if an underwriter
defaults, the purchase commitments of non-defaulting underwriters may be
increased or this offering of our common stock may be terminated.

    The selling stockholders have granted to the underwriters a 30-day option to
purchase on a pro rata basis up to 645,000 additional shares from them at the
public offering price less the underwriting discounts and commissions. This
option may be exercised only to cover over-allotments of our common stock.

    The underwriters propose to offer our common stock initially at the public
offering price on the cover page of this prospectus and to the selling group
members at that price less a selling concession of $1.50 per share. The
underwriters and the selling group members may allow a discount of $0.10 per
share on sales to other broker/dealers. After offering, the public offering
price and selling concession and discount to dealers may be changed by the
representatives. As used in this section,

    - Underwriters are securities broker/dealers that are parties to the
      underwriting agreement and will have a contractual commitment to purchase
      shares of our common stock from us, and the representatives are the four
      firms acting on behalf of the underwriters.

    - Selling group members are securities broker/dealers to whom the
      underwriters may sell shares of common stock at the public offering price
      less the selling concession above, but who do not have a contractual
      commitment to purchase shares from us.

    - Broker/dealers are firms registered under applicable securities laws to
      sell securities to the public.

    - The syndicate consists of the underwriters and the selling group members.

    The following table summarizes the compensation and estimated expenses that
we will pay. The compensation we will pay to the underwriters will consist
solely of the underwriting discount, which is equal to the public offering price
per share of common stock less the amount the underwriters pay to us per share
of common stock. The underwriters have not received and will not receive from us
any

                                       78
<PAGE>
other item of compensation or expense in connection with this offering
considered by the National Association of Securities Dealers, Inc. to be
underwriting compensation under its rules of fair practice.

<TABLE>
<CAPTION>
                                                         PER SHARE                       TOTAL
                                                ---------------------------   ---------------------------
                                                   WITHOUT       WITH OVER-      WITHOUT       WITH OVER-
                                                OVER-ALLOTMENT   ALLOTMENT    OVER-ALLOTMENT   ALLOTMENT
                                                --------------   ----------   --------------   ----------
<S>                                             <C>              <C>          <C>              <C>
Underwriting discounts and commissions paid by
  us in cash..................................      $2.50           $2.50       $3,750,000     $3,750,000
Expenses payable by us........................      $0.47           $0.47       $  700,000     $  700,000
Underwriting discounts and commissions paid by
  the selling stockholders....................      $2.50           $2.50       $7,000,000     $8,612,500
</TABLE>

    Under the terms of our registration rights agreement with the selling
stockholders, we are required to pay all expenses in connection with this
offering. The principal components of the offering expenses payable by us will
include the fees and expenses of our accountants and attorneys, the fees of our
registrar and transfer agent, the cost of printing this prospectus, The Nasdaq
Stock Market listing fees and filing fees paid to the Securities and Exchange
Commission and the National Association of Securities Dealers, Inc.

    We, our officers, our directors, and the selling stockholders have agreed
not to offer or transfer, or file with the Securities and Exchange Commission a
registration statement under the Securities Act relating to, any additional
shares of our common stock or securities convertible into or exchangeable or
exercisable for any shares of our common stock without the prior written consent
of Credit Suisse First Boston Corporation for a period of 90 days after the date
of this prospectus, except in our case for grants of employee stock options
under our stock incentive plans in effect on the date hereof and issuances of
securities as a result of the exercise of any options outstanding on the date
hereof and issuances of securities as a result of the conversion of any
convertible instruments outstanding on the date hereof.

    We have agreed to indemnify the underwriters against liabilities under the
Securities Act, or to contribute to payments which the underwriters may be
required to make in that respect.

    The shares of our common stock are traded on The Nasdaq Stock Market's
National Market under the symbol "APNT."

    The representatives may engage in over-allotment, stabilizing transactions,
syndicate covering transactions and penalty bids in accordance with
Regulation M under the Securities Exchange Act of 1934. Over-allotment involves
syndicate sales in excess of the size of this offering, which creates a
syndicate short position. Stabilizing transactions permit bids to purchase the
shares of our common stock so long as the stabilizing bids do not exceed a
specified maximum. Syndicate covering transactions involve purchases of our
common stock in the open market after the distribution has been completed in
order to cover syndicate short positions. Penalty bids permit the
representatives to reclaim a selling concession from a syndicate member when our
common stock originally sold by the syndicate member is purchased in a
stabilization or a syndicate covering transaction to cover syndicate short
positions. The representatives track such purchases through the public offering
tracking system operated by the Depository Trust Company. The representatives
may, at their discretion, reclaim a selling concession from any syndicate member
that appears to have permitted its customers to purchase shares in the public
offering and then promptly resell all or a portion of such shares to such
syndicate member. However, the underwriters do not have any agreements with any
potential purchasers of shares of common stock in this offering that would
restrict their transfer of such shares following this offering.

    Such stabilizing transactions, syndicate covering transactions and penalty
bids may cause the price of our common stock to be higher than it would
otherwise be in the absence of such transactions. These transactions may be
effected on The Nasdaq Stock Market's National Market or otherwise and, if
commenced, may be discontinued at any time.

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<PAGE>
                          NOTICE TO CANADIAN RESIDENTS

RESALE RESTRICTIONS

    The distribution of our common stock in Canada is being made only on a
private placement basis exempt from the requirement that we prepare and file a
prospectus with the securities regulatory authorities in each province where
trades of our common stock are effected. Accordingly, any resale of our common
stock in Canada must be made in accordance with applicable securities laws which
will vary depending on the relevant jurisdiction and which may require resales
to be made in accordance with available statutory exemptions or under a
discretionary exemption granted by the applicable Canadian securities regulatory
authority. Purchasers are advised to seek legal advice prior to any resale of
our common stock.

REPRESENTATIONS OF PURCHASERS

    Each purchaser of our common stock in Canada who receives a purchase
confirmation will be deemed to represent to us and the dealer from whom such
purchase confirmation is received that:

    - such purchaser is entitled under applicable provincial securities laws to
      purchase our common stock without the benefit of a prospectus qualified
      under such securities laws;

    - where required by law, that such purchaser is purchasing as principal and
      not as agent; and

    - such purchaser has reviewed the text above under "Resale restrictions."

RIGHTS OF ACTION (ONTARIO PURCHASERS)

    The securities being offered are those of a foreign issuer and Ontario
purchasers will not receive the contractual right of action prescribed by
Ontario securities law. As a result, Ontario purchasers must rely on other
remedies that may be available, including common law rights of action for
damages or rescission or rights of action under the civil liability provisions
of the U.S. federal securities law.

ENFORCEMENT OF LEGAL RIGHTS

    All of the issuer's directors and officers as well as the experts named
herein may be located outside of Canada and, as a result, it may not be possible
for Canadian purchasers to effect service of process within Canada upon the
issuer or such persons. All or a substantial portion of the assets of the issuer
and such persons may be located outside of Canada and, as a result, it may not
be possible to satisfy a judgment against the issuer or such persons in Canada
or to enforce a judgment obtained in Canadian courts against such issuer or
persons outside of Canada.

NOTICE TO BRITISH COLUMBIA RESIDENTS

    A purchaser of our common stock to whom the SECURITIES ACT (British
Columbia) applies is advised that such purchaser is required to file with the
British Columbia Securities Commission a report within ten days of the sale of
common stock acquired by such purchaser through this offering. Such report must
be in the form attached to British Columbia Securities Commission Blanket Order
BOR #95/17, a copy of which may be obtained from us. Only one such report must
be filed in respect of shares of our common stock acquired on the same date and
under the same prospectus exemption.

TAXATION AND ELIGIBILITY FOR INVESTMENT

    Canadian purchasers of our common stock should consult their own legal and
tax advisors with respect to the tax consequences of an investment in our common
stock in their circumstances and with respect to the eligibility of our common
stock for investment by the purchaser under relevant Canadian legislation.

                                       80
<PAGE>
                                 LEGAL MATTERS

    The validity of the shares of our common stock offered by this prospectus
will be passed upon for AppNet by Foley & Lardner, Washington, DC. The
underwriters have been represented by Cravath, Swaine & Moore, New York, NY.

                                    EXPERTS

    The audited financial statements and schedules included in this prospectus
and elsewhere in the registration statement have been audited by Arthur Andersen
LLP, independent public accountants, as indicated in their reports with respect
thereto, and are included herein in reliance upon the authority of said firm as
experts in giving said reports.

    The pro forma consolidated statement of operations for the year ended
December 31, 1998 included in this prospectus has been examined and the pro
forma consolidated statement of operations for the nine months ended
September 30, 1999 included in this prospectus has been reviewed by Arthur
Andersen LLP, independent public accountants as indicated in their report with
respect thereto, and are included herein in reliance upon the authority of said
firm as experts in giving said report.

                   WHERE YOU CAN FIND ADDITIONAL INFORMATION

    AppNet has filed with the Securities and Exchange Commission a registration
statement on Form S-1 under the Securities Act and the rules and regulations
promulgated under the Securities Act with respect to its common stock offered by
this prospectus. This prospectus, which constitutes a part of the registration
statement, does not contain all of the information set forth in the registration
statement and its exhibits and schedules. For further information with respect
to AppNet and its common stock, we refer you to the registration statement,
including its exhibits and the schedules filed as a part of it. You may read and
copy the registration statement at the Securities and Exchange Commission's
following locations:

<TABLE>
<S>                            <C>                            <C>
Public Reference Room Office   New York Regional Office       Chicago Regional Office
450 Fifth Street, N.W.         Seven World Trade Center       Citicorp Center
Washington, DC 20549           Suite 1300                     500 West Madison Street
                               New York, NY 10048             Chicago, IL 60661-2511
</TABLE>

    You may also obtain copies of the registration statement by mail from the
Public Reference Section of the Securities and Exchange Commission at 450 Fifth
Street, N.W., Judiciary Plaza, Washington, DC 20549 or by telephone at
1-800-SEC-0330. The registration statement is available to the public from
commercial document retrieval services and at the Securities and Exchange
Commission's World Wide Website located at http://www.sec.gov. You can also read
AppNet's filings with the Securities and Exchange Commission at the office of
Nasdaq Operations, 1734 K Street, N.W. Washington, DC 20006. Statements in this
prospectus as to the contents of any contract or other document are not
necessarily complete, and in each instance we refer you to the full text of such
contract or document filed as an exhibit to the registration statement, each
such statement being qualified in all respects by such reference.

    We intend to furnish our stockholders with annual reports containing
financial statements audited by an independent public accounting firm and make
available to our stockholders quarterly reports for the first three quarters of
each fiscal year containing interim unaudited financial information.

                                       81
<PAGE>
                         INDEX TO FINANCIAL STATEMENTS

<TABLE>
<S>                                                           <C>
APPNET, INC.

  Report of independent public accountants..................           F--4

  Consolidated balance sheets as of December 31, 1998 and
    September 30, 1999 (unaudited)..........................           F--5

  Consolidated statements of operations for the year ended
    December 31, 1998 and for the nine month periods ended
    September 30, 1998 and September 30, 1999 (unaudited)...           F--6

  Consolidated statements of stockholders' equity for the
    year ended December 31, 1998 and for the nine month
    period ended September 30, 1999 (unaudited).............           F--7

  Consolidated statements of cash flows for the year ended
    December 31, 1998 and for the nine month periods ended
    September 30, 1998 and September 30, 1999 (unaudited)...           F--8

  Notes to consolidated financial statements................           F--9

SOFTWARE SERVICES CORPORATION

  Report of independent public accountants..................          F--30

  Balance sheets as of December 31, 1996 and 1997, and
    August 24, 1998.........................................          F--31

  Statements of operations for the years ended December 31,
    1996 and 1997 and for the period from January 1, 1998 to
    August 24, 1998.........................................          F--32

  Statements of stockholders' equity for the years ended
    December 31, 1996 and 1997, and for the period from
    January 1, 1998 to August 24, 1998......................          F--33

  Statements of cash flows for the years ended December 31,
    1996 and 1997 and for the period from January 1, 1998 to
    August 24, 1998.........................................          F--34

  Notes to financial statements.............................          F--35

ARBOR INTELLIGENT SYSTEMS, INC.

  Report of independent public accountants..................          F--46

  Balance sheets as of December 31, 1997 and March 11,
    1998....................................................          F--47

  Statements of operations for the year ended December 31,
    1997 and for the period from
    January 1, 1998 to March 11, 1998.......................          F--48

  Statements of stockholders' deficit for the year ended
    December 31, 1997 and for the period from January 1,
    1998 to March 11, 1998..................................          F--49

  Statements of cash flows for the year ended December 31,
    1997 and for the period from
    January 1, 1998 to March 11, 1998.......................          F--50

  Notes to financial statements.............................          F--51
</TABLE>

                                      F-1
<PAGE>
<TABLE>
<S>                                                           <C>
NEW MEDIA PUBLISHING, INC.

  Report of independent public accountants..................          F--57

  Balance sheets as of December 31, 1996 and 1997, and
    October 1, 1998.........................................          F--58

  Statements of operations for the years ended December 31,
    1996 and 1997, and for the period from January 1, 1998
    to October 1, 1998......................................          F--59

  Statements of stockholders' equity for the year ended
    December 31, 1996 and 1997, and for the period from
    January 1, 1998 to October 1, 1998......................          F--60

  Statements of cash flows for the years ended December 31,
    1996 and 1997, and for the period from January 1, 1998
    to October 1, 1998......................................          F--61

  Notes to financial statements.............................          F--62

CENTURY COMPUTING, INCORPORATED

  Report of independent public accountants..................          F--70

  Balance sheets as of December 31, 1996 and 1997 and
    October 11, 1998........................................          F--71

  Statements of operations for the years ended December 31,
    1996 and 1997, and for the period from January 1, 1998
    to October 11, 1998.....................................          F--72

  Statements of stockholders' equity for the years ended
    December 31, 1996 and 1997, and for the period from
    January 1, 1998 to October 11, 1998.....................          F--73

  Statements of cash flows for the years ended December 31,
    1996 and 1997, and for the period from January 1, 1998
    to October 11, 1998.....................................          F--74

  Notes to financial statements.............................          F--75

RESEARCH & PLANNING, INC.

  Report of independent public accountants..................          F--83

  Balance sheets as of December 31, 1996 and 1997, and
    October 19, 1998........................................          F--84

  Statements of operations for the years ended December 31,
    1996 and 1997, and for the period from January 1, 1998
    to October 19, 1998.....................................          F--85

  Statements of stockholders' equity for the years ended
    December 31, 1996 and 1997, and for the period from
    January 1, 1998 to October 19, 1998.....................          F--86

  Statements of cash flows for the Years Ended December 31,
    1996 and 1997, and for the period from January 1, 1998
    to October 19, 1998.....................................          F--87

  Notes to financial statements.............................          F--88
</TABLE>

                                      F-2
<PAGE>
<TABLE>
<S>                                                           <C>
THE KODIAK GROUP, INC.

  Report of independent public accountants..................          F--92

  Balance sheets as of December 31, 1997 and December 13,
    1998....................................................          F--93

  Statements of operations for the year ended December 31,
    1997 and for the period from
    January 1, 1998 to December 13, 1998....................          F--94

  Statements of stockholders' equity for the year ended
    December 31, 1997 and for the period from January 1,
    1998 to December 13, 1998...............................          F--95

  Statements of cash flows for the year ended December 31,
    1997 and for the period from
    January 1, 1998 to December 13, 1998....................          F--96

  Notes to financial statements.............................          F--97

I33 COMMUNICATIONS CORP.

  Report of independent public accountants..................         F--102

  Balance sheets as of December 31, 1996, 1997 and 1998.....         F--103

  Statements of operations for the years ended December 31,
    1996, 1997 and 1998.....................................         F--104

  Statements of stockholders' equity (deficit) for the years
    ended December 31, 1996, 1997 and 1998..................         F--105

  Statements of cash flows for the years ended December 31,
    1996, 1997 and 1998.....................................         F--106

  Notes to financial statements.............................         F--107

SALZINGER & COMPANY, INC.

  Report of independent public accountants..................         F--113

  Balance sheet as of December 31, 1998.....................         F--114

  Statement of operations for the year ended December 31,
    1998....................................................         F--115

  Statement of stockholder's equity for year ended December
    31, 1998................................................         F--116

  Statement of cash flows for year ended December 31,
    1998....................................................         F--117

  Notes to financial statements.............................         F--118

INTERNET OUTFITTERS, INC.

  Report of independent public accountants..................         F--121

  Balance sheet as of December 31, 1998.....................         F--122

  Statement of operations for the year ended December 31,
    1998....................................................         F--123

  Statement of stockholders' equity for the year ended
    December 31, 1998.......................................         F--124

  Statement of cash flows for the year ended December 31,
    1998....................................................         F--125

  Notes to financial statements.............................         F--126
</TABLE>

                                      F-3
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To AppNet, Inc.:

    We have audited the accompanying consolidated balance sheet of AppNet, Inc.
(formerly AppNet Systems, Inc.) (a Delaware corporation) and subsidiaries as of
December 31, 1998 and the related consolidated statements of operations,
stockholders' equity, and cash flows for the year then ended. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

    We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

    In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of
AppNet, Inc. and subsidiaries as of December 31, 1998, and the results of their
operations and their cash flows for the year then ended, in conformity with
generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
March 29, 1999
(except with respect to the matter discussed
in Note 18, as to which the date is
June 15, 1999.)

                                      F-4
<PAGE>
                                  APPNET, INC.

                          CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   SEPTEMBER 30,
                                                                  1998           1999
                                                              ------------   -------------
                                                                              (UNAUDITED)
<S>                                                           <C>            <C>
ASSETS
Current assets:
  Cash and cash equivalents.................................  $  2,447,000   $  3,236,000
  Accounts receivable, net of allowance for doubtful
    accounts of $1,124,000 and $1,597,000, respectively.....    11,238,000     27,010,000
  Other current assets......................................     1,118,000      1,428,000
                                                              ------------   ------------
    Total current assets....................................    14,803,000     31,674,000
Property and equipment, net.................................     3,012,000      7,359,000
Intangible assets, net......................................    99,380,000    102,028,000
Other assets................................................     1,175,000      1,867,000
                                                              ------------   ------------
    Total assets............................................  $118,370,000   $142,928,000
                                                              ============   ============
LIABILITIES, REDEEMABLE STOCK AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................  $  2,737,000   $  5,665,000
  Accrued liabilities.......................................     6,911,000     28,925,000
  Current portion of convertible notes and long-term debt...     2,426,000      1,610,000
                                                              ------------   ------------
    Total current liabilities...............................    12,074,000     36,200,000
Credit facilities...........................................    37,461,000      3,660,000
Convertible notes, net of current portion...................     2,706,000      8,800,000
Other long-term debt, net of current portion................     1,199,000      3,515,000
Other long-term liabilities.................................     3,398,000      1,066,000
                                                              ------------   ------------
    Total liabilities.......................................    56,838,000     53,241,000
                                                              ------------   ------------
Commitments and contingencies (Note 16)
Class A Preferred Stock, $.01 par value, 96,621 shares
  authorized, 38,093 and zero shares issued and outstanding
  as of December 31, 1998 and September 30, 1999,
  respectively, liquidation value $1,000....................    37,646,000             --
Common stock subject to put rights, $.0005 par value; 48,771
  and zero shares issued and outstanding as of December 31,
  1998 and September 30, 1999, respectively.................       278,000             --
                                                              ------------   ------------
Stockholders' equity:
  Class B Preferred Stock, $.01 par value, 20,000 shares
    authorized, 11,576 and zero shares issued and
    outstanding as of December 31, 1998 and September 30,
    1999, respectively, liquidation value $1,000............    11,576,000             --
  Common stock, $.0005 par value; 75,000,000 shares
    authorized, 19,504,173 issued and outstanding as of
    December 31, 1998, and 31,162,465 shares issued and
    30,997,027 shares outstanding as of September 30, 1999,
    respectively............................................        10,000         16,000
  Additional paid-in capital................................    27,222,000    165,135,000
  Treasury stock............................................            --        (50,000)
  Notes receivable from management..........................      (821,000)      (617,000)
  Deferred compensation.....................................            --       (414,000)
  Accumulated deficit.......................................   (14,379,000)   (74,383,000)
                                                              ------------   ------------
    Total stockholders' equity..............................    23,608,000     89,687,000
                                                              ------------   ------------
    Total liabilities, redeemable stock and stockholders'
      equity................................................  $118,370,000   $142,928,000
                                                              ============   ============
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-5
<PAGE>
                                  APPNET, INC.

                     CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                             NINE MONTHS ENDED
                                                                               SEPTEMBER 30,
                                                       YEAR ENDED       ---------------------------
                                                   DECEMBER 31, 1998        1998           1999
                                                   ------------------   ------------   ------------
                                                                                (UNAUDITED)
<S>                                                <C>                  <C>            <C>
Revenues.........................................     $ 17,674,000      $ 3,508,000    $ 74,802,000
Cost of revenues.................................       11,699,000        3,252,000      42,205,000
                                                      ------------      ------------   ------------
    Gross profit.................................        5,975,000          256,000      32,597,000
Operating expenses:
  Selling and marketing..........................          964,000          218,000       5,832,000
  General and administrative.....................        6,507,000        2,349,000      23,347,000
  Stock-based and other acquisition-related
    compensation.................................        1,157,000               --      15,730,000
  Depreciation and amortization..................       10,151,000        1,669,000      42,857,000
                                                      ------------      ------------   ------------
    Total operating expenses.....................       18,779,000        4,236,000      87,766,000
                                                      ------------      ------------   ------------
Loss from operations.............................      (12,804,000)      (3,980,000)    (55,169,000)
Interest expense.................................        1,052,000          289,000       3,948,000
Other expense, net...............................          723,000          387,000         559,000
                                                      ------------      ------------   ------------
Loss before income taxes.........................      (14,579,000)      (4,656,000)    (59,676,000)
Income tax (benefit) provision...................         (200,000)         (70,000)        328,000
                                                      ------------      ------------   ------------
Net loss.........................................      (14,379,000)      (4,586,000)    (60,004,000)
Dividends on and accretion of preferred stock....         (873,000)        (110,000)     (2,139,000)
                                                      ------------      ------------   ------------
Net loss attributable to common stockholders.....     $(15,252,000)     $(4,696,000)   $(62,143,000)
                                                      ============      ============   ============
Basic and diluted net loss per common share......     $      (1.41)     $      (.59)   $      (2.57)
                                                      ============      ============   ============
Weighted average common shares outstanding.......       10,785,424        8,018,434      24,200,397
                                                      ============      ============   ============
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-6
<PAGE>
                                  APPNET, INC.
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
<TABLE>
<CAPTION>
                                                                               REDEEMABLE EQUITY SECURITIES
                                                          ----------------------------------------------------------------------
                                                             COMMON STOCK
                                                              SUBJECT TO                CLASS A                 SERIES A-1
                                                              PUT RIGHTS            PREFERRED STOCK          PREFERRED STOCK
                                                          -------------------   -----------------------   ----------------------
                                                           SHARES     AMOUNT     SHARES       AMOUNT       SHARES      AMOUNT
                                                          --------   --------   --------   ------------   --------   -----------
<S>                                                       <C>        <C>        <C>        <C>            <C>        <C>
Initial capitalization..................................       --    $     --        --    $         --         --   $        --
  Issuance of Series A-1 preferred stock in connection
    with acquisition....................................       --          --        --              --    266,796     1,067,000
  GTCR Investment.......................................   48,771     278,000        --              --   (266,796)   (1,067,000)
  Repurchase and cancellation of shares in exchange for
    note payable........................................       --          --        --              --         --            --
  Repurchase and cancellation of common stock shares....       --          --        --              --         --            --
  Issuance of Class A Preferred Stock...................       --          --    37,676      37,045,000         --            --
  Conversion of common stock into Class A Preferred
    Stock...............................................       --          --       417         417,000         --            --
  Dividends on and accretion of Class A Preferred
    Stock...............................................       --          --        --         184,000         --            --
  Issuance of stock in connection with the 1998 acquired
    businesses..........................................       --          --        --              --         --            --
  Repurchase and cancellation of shares sold to
    management..........................................       --          --        --              --         --            --
  Purchase of shares by management......................       --          --        --              --         --            --
  Stock options exercised...............................       --          --        --              --         --            --
  Net loss..............................................       --          --        --              --         --            --
                                                          -------    --------   -------    ------------   --------   -----------
Total, December 31, 1998................................   48,771    $278,000    38,093    $ 37,646,000         --   $        --
                                                          -------    --------   -------    ------------   --------   -----------
  Issuance of Class A Preferred Stock (unaudited).......       --          --     7,337       7,191,000         --            --
  Dividends on and accretion of Class A Preferred Stock
    (unaudited).........................................       --          --        --         593,000         --            --
  Issuance of stock in connection with the 1999 acquired
    businesses (unaudited)..............................       --          --        --              --         --            --
  Exercise and expiration of put rights (unaudited).....  (48,771)   (278,000)       --              --         --            --
  Conversion of notes payable (unaudited)...............       --          --        --              --         --            --
  Issuance of common stock in initial public offering,
    net of expenses (unaudited).........................       --          --        --              --         --            --
  Exchange of Class A and Class B Preferred Stock in the
    initial public offering (unaudited).................       --          --   (45,430)    (45,430,000)        --            --
  Charges associated with initial public offering
    (unaudited).........................................       --          --        --              --         --            --
  Repurchase and cancellation of shares sold to
    management (unaudited)..............................       --          --        --              --         --            --
  Common stock sold for cash (unaudited)................       --          --        --              --         --            --
  Repurchase of common stock (unaudited)................       --          --        --              --         --            --
  Stock options and warrants exercised (unaudited)......       --          --        --              --         --            --
  Deferred compensation pursuant to issuance of stock
    options (unaudited).................................       --          --        --              --         --            --
  Amortization of deferred compensation (unaudited).....       --          --        --              --         --            --
  Other (unaudited).....................................       --          --        --              --         --            --
  Net loss (unaudited)..................................       --          --        --              --         --            --
                                                          -------    --------   -------    ------------   --------   -----------
  Total, September 30, 1999 (unaudited).................       --    $     --        --    $         --         --   $        --
                                                          =======    ========   =======    ============   ========   ===========

<CAPTION>
                                                                               STOCKHOLDERS' EQUITY
                                                          ---------------------------------------------------------------

                                                                  CLASS B                   COMMON
                                                              PREFERRED STOCK                STOCK            ADDITIONAL
                                                          ------------------------   ---------------------     PAID-IN
                                                           SHARES       AMOUNT         SHARES      AMOUNT      CAPITAL
                                                          --------   -------------   ----------   --------   ------------
<S>                                                       <C>        <C>             <C>          <C>        <C>
Initial capitalization..................................       --    $          --    5,343,860   $ 3,000    $    132,000
  Issuance of Series A-1 preferred stock in connection
    with acquisition....................................       --               --           --        --              --
  GTCR Investment.......................................       --               --   13,342,145     7,000       4,108,000
  Repurchase and cancellation of shares in exchange for
    note payable........................................       --               --   (1,350,877)   (1,000)       (405,000)
  Repurchase and cancellation of common stock shares....       --               --     (138,455)       --        (789,000)
  Issuance of Class A Preferred Stock...................       --               --           --        --              --
  Conversion of common stock into Class A Preferred
    Stock...............................................       --               --   (1,387,097)   (1,000)       (416,000)
  Dividends on and accretion of Class A Preferred
    Stock...............................................       --               --           --        --        (873,000)
  Issuance of stock in connection with the 1998 acquired
    businesses..........................................   11,576       11,576,000    3,397,329     2,000      24,811,000
  Repurchase and cancellation of shares sold to
    management..........................................       --               --     (681,053)                 (228,000)
  Purchase of shares by management......................       --               --      552,982                   572,000
  Stock options exercised...............................       --               --      425,339                   310,000
  Net loss..............................................       --               --           --        --              --
                                                          -------    -------------   ----------   -------    ------------
Total, December 31, 1998................................   11,576    $  11,576,000   19,504,173   $10,000    $ 27,222,000
                                                          -------    -------------   ----------   -------    ------------
  Issuance of Class A Preferred Stock (unaudited).......       --               --           --        --              --
  Dividends on and accretion of Class A Preferred Stock
    (unaudited).........................................       --               --           --        --      (2,139,000)
  Issuance of stock in connection with the 1999 acquired
    businesses (unaudited)..............................       --               --      595,711                 9,399,000
  Exercise and expiration of put rights (unaudited).....       --               --       44,882        --         256,000
  Conversion of notes payable (unaudited)...............       --               --      260,558        --       2,307,000
  Issuance of common stock in initial public offering,
    net of expenses (unaudited).........................       --               --    6,000,000     3,000      64,116,000
  Exchange of Class A and Class B Preferred Stock in the
    initial public offering (unaudited).................  (11,576)     (11,576,000)   4,936,808     3,000      59,239,000
  Charges associated with initial public offering
    (unaudited).........................................       --               --           --        --       3,506,000
  Repurchase and cancellation of shares sold to
    management (unaudited)..............................       --               --     (467,074)                 (142,000)
  Common stock sold for cash (unaudited)................       --               --       29,240        --         375,000
  Repurchase of common stock (unaudited)................       --               --           --        --              --
  Stock options and warrants exercised (unaudited)......       --               --      258,167                   228,000
  Deferred compensation pursuant to issuance of stock
    options (unaudited).................................       --               --           --        --         481,000
  Amortization of deferred compensation (unaudited).....       --               --           --        --              --
  Other (unaudited).....................................       --               --           --        --         287,000
  Net loss (unaudited)..................................       --               --           --        --              --
                                                          -------    -------------   ----------   -------    ------------
  Total, September 30, 1999 (unaudited).................       --    $          --   31,162,465   $16,000    $165,135,000
                                                          =======    =============   ==========   =======    ============

<CAPTION>
                                                                                    STOCKHOLDERS' EQUITY
                                                          ------------------------------------------------------------------------

                                                                          NOTES                                          TOTAL
                                                          TREASURY   RECEIVABLE FROM     DEFERRED     ACCUMULATED    STOCKHOLDERS'
                                                           STOCK       MANAGEMENT      COMPENSATION     DEFICIT         EQUITY
                                                          --------   ---------------   ------------   ------------   -------------
<S>                                                       <C>        <C>               <C>            <C>            <C>
Initial capitalization..................................        --      $      --       $      --     $         --   $    135,000
  Issuance of Series A-1 preferred stock in connection
    with acquisition....................................        --             --              --               --             --
  GTCR Investment.......................................        --       (447,000)             --               --      3,668,000
  Repurchase and cancellation of shares in exchange for
    note payable........................................        --             --              --               --       (406,000)
  Repurchase and cancellation of common stock shares....        --             --              --               --       (789,000)
  Issuance of Class A Preferred Stock...................        --             --              --               --             --
  Conversion of common stock into Class A Preferred
    Stock...............................................        --             --              --               --       (417,000)
  Dividends on and accretion of Class A Preferred
    Stock...............................................        --             --              --               --       (873,000)
  Issuance of stock in connection with the 1998 acquired
    businesses..........................................        --             --              --               --     36,389,000
  Repurchase and cancellation of shares sold to
    management..........................................        --        197,000              --               --        (31,000)
  Purchase of shares by management......................        --       (571,000)             --               --          1,000
  Stock options exercised...............................        --             --              --               --        310,000
  Net loss..............................................        --             --              --      (14,379,000)   (14,379,000)
                                                          --------      ---------       ---------     ------------   ------------
Total, December 31, 1998................................        --      $(821,000)      $      --     $(14,379,000)  $ 23,608,000
                                                          --------      ---------       ---------     ------------   ------------
  Issuance of Class A Preferred Stock (unaudited).......        --             --              --               --             --
  Dividends on and accretion of Class A Preferred Stock
    (unaudited).........................................        --             --              --               --     (2,139,000)
  Issuance of stock in connection with the 1999 acquired
    businesses (unaudited)..............................        --             --              --               --      9,399,000
  Exercise and expiration of put rights (unaudited).....        --             --              --               --        256,000
  Conversion of notes payable (unaudited)...............        --             --              --               --      2,307,000
  Issuance of common stock in initial public offering,
    net of expenses (unaudited).........................        --             --              --               --     64,119,000
  Exchange of Class A and Class B Preferred Stock in the
    initial public offering (unaudited).................        --             --              --               --     47,666,000
  Charges associated with initial public offering
    (unaudited).........................................        --             --              --               --      3,506,000
  Repurchase and cancellation of shares sold to
    management (unaudited)..............................        --        142,000              --               --             --
  Common stock sold for cash (unaudited)................        --             --              --               --        375,000
  Repurchase of common stock (unaudited)................   (50,000)            --              --               --        (50,000)
  Stock options and warrants exercised (unaudited)......        --             --              --               --        228,000
  Deferred compensation pursuant to issuance of stock
    options (unaudited).................................        --             --        (481,000)              --             --
  Amortization of deferred compensation (unaudited).....        --             --          67,000               --         67,000
  Other (unaudited).....................................        --         62,000              --               --        349,000
  Net loss (unaudited)..................................        --             --              --      (60,004,000)   (60,004,000)
                                                          --------      ---------       ---------     ------------   ------------
  Total, September 30, 1999 (unaudited).................  $(50,000)     $(617,000)      $(414,000)    $(74,383,000)  $ 89,687,000
                                                          ========      =========       =========     ============   ============
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-7
<PAGE>
                                  APPNET, INC.

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                                FOR THE NINE
                                                 FOR THE YEAR                   MONTHS ENDED
                                                    ENDED          ---------------------------------------
                                              DECEMBER 31, 1998    SEPTEMBER 30, 1998   SEPTEMBER 30, 1999
                                              ------------------   ------------------   ------------------
                                                                                 (UNAUDITED)
<S>                                           <C>                  <C>                  <C>
Cash flows from operating activities:
  Net loss..................................     $(14,379,000)        $ (4,586,000)        $(60,004,000)
  Adjustments to reconcile net loss to net
    cash used in operating activities:
    Amortization............................        9,867,000            1,611,000           40,893,000
    Depreciation............................          284,000               57,000            1,964,000
    Stock-based and other
      acquisition-related compensation......        1,157,000                   --           15,730,000
    Write-off of deferred financing costs...          291,000                   --              559,000
    Deferred tax benefit....................          (50,000)                  --                   --
    Beneficial conversion charge............               --                   --            1,052,000
    Change in assets and liabilities:
      Accounts receivable, net..............       (1,762,000)            (520,000)         (13,143,000)
      Other current assets..................          399,000              182,000               86,000
      Accounts payable......................        1,012,000             (138,000)           1,579,000
      Accrued liabilities...................          547,000              215,000            7,327,000
                                                 ------------         ------------         ------------
        Net cash used in operating
          activities........................       (2,634,000)          (3,179,000)          (3,957,000)
                                                 ------------         ------------         ------------
Cash flows from investing activities:
  Purchase of property and equipment, net...       (1,196,000)            (378,000)          (5,109,000)
  Cash paid for acquired businesses, net of
    cash acquired...........................      (69,562,000)         (12,877,000)         (26,381,000)
  Other assets..............................         (904,000)            (454,000)            (885,000)
                                                 ------------         ------------         ------------
        Net cash used in investing
          activities........................      (71,662,000)         (13,709,000)         (32,375,000)
                                                 ------------         ------------         ------------
Cash flows from financing activities:
  Proceeds from long-term debt..............        1,104,000              351,000                   --
  Repayments of long-term debt..............         (268,000)            (268,000)            (203,000)
  Borrowings under credit facilities........       47,261,000           10,374,000           74,000,000
  Repayments of credit facilities...........       (9,800,000)          (1,081,000)        (107,801,000)
  Debt issue costs..........................         (351,000)            (194,000)            (621,000)
  Proceeds from issuance of common stock....        3,015,000            3,015,000              375,000
  Net proceeds from initial public
    offering................................               --                   --           64,119,000
  Repurchase of common stock................         (789,000)            (789,000)             (22,000)
  Proceeds from issuance of preferred
    stock...................................       36,292,000            6,122,000            7,046,000
  Repurchase of shares sold to management...          (31,000)                  --                   --
  Proceeds from exercise of stock options...          310,000                   --              228,000
                                                 ------------         ------------         ------------
        Net cash provided by financing
          activities........................       76,743,000           17,530,000           37,121,000
                                                 ------------         ------------         ------------
Net increase in cash........................        2,447,000              642,000              789,000
Cash and cash equivalents, beginning of
  period....................................               --                   --            2,447,000
                                                 ------------         ------------         ------------
Cash and cash equivalents, end of period....     $  2,447,000         $    642,000         $  3,236,000
                                                 ============         ============         ============
Supplementary information:
  Cash paid for income taxes................     $         --         $         --         $    181,000
                                                 ============         ============         ============
  Cash paid for interest....................     $    775,000         $    298,000         $  2,212,000
                                                 ============         ============         ============
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-8
<PAGE>
                                  APPNET, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

1.  BUSINESS DESCRIPTION:

    AppNet, Inc. ("AppNet" or the "Company") was incorporated under the name
Internet Applications, Inc. in November 1997 ("Inception"), under the laws of
the state of Delaware. The Company changed its name to AppNet, Inc. and AppNet
Systems, Inc., in October 1999 and March 1998, respectively. AppNet is based in
Bethesda, Maryland and is a provider of Internet and electronic commerce
professional services and solutions, including strategic consulting, interactive
media services, Internet-based application development, electronic commerce
systems integration and electronic commerce outsourcing.

    The Company's financial statements for the period from Inception through
December 31, 1997 reflect immaterial transactions and, therefore, have been
included in the 1998 financial statements to facilitate presentation. From
Inception through March 11, 1998, the Company's operating activities related
primarily to recruiting personnel, raising capital, identifying operating assets
for acquisitions and developing technical and marketing materials. In
March 1998, the Company completed its first acquisition and recognized its first
revenues.

    There are significant risks associated with the Company, including the
susceptibility of the Company's services to rapid technological change,
increased competition from existing service providers and new entrants, lack of
an operating history, existence of fixed price contracts, realizability of
intangible assets, government regulations, the year 2000 issue and dependence
upon key members of the management team.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

PRINCIPLES OF CONSOLIDATION

    The accompanying consolidated financial statements include the accounts of
AppNet and its wholly owned subsidiaries. All significant intercompany
transactions and accounts have been eliminated in consolidation.

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make assumptions that
affect the reported amounts of assets and liabilities and the disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amount of revenues and expenses during the reporting period. Actual
results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                       <C>
Computers and equipment.................................  three to five years
Furniture and fixtures..................................  five to seven years
</TABLE>

                                      F-9
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

    Leasehold improvements are amortized over the lesser of the estimated useful
life of the asset or the remaining lease term.

IMPAIRMENT OF LONG-LIVED ASSETS

    In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded goodwill, other
intangibles and long-lived assets for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable. When deemed necessary, goodwill and other intangibles are assessed
for possible impairment based upon a number of factors, including turnover of
the acquired workforce and the undiscounted value of expected future operating
cash flows in relation to the Company's net investment in each subsidiary. Since
Inception, the Company has not recorded a provision for possible impairment of
long-lived assets or intangible assets associated with its acquired businesses.

INTERNAL USE COMPUTER SOFTWARE

    In accordance with the American Institute of Certified Public Accountants
(the "AICPA") Statement of Position 98-1 "Accounting for the Costs of Computer
Software Developed or Obtained for Internal Use," the Company capitalizes costs
related to software and implementation in connection with its internal use
software systems. Such costs are amortized principally over three years.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable, credit facilities, long-term
debt, convertible notes and capital lease obligations. In management's opinion,
the carrying amounts of these financial instruments approximate their fair
values at December 31, 1998. Due to the related party nature of the Company's
Class A Preferred Stock, it is impracticable to estimate its fair value at
December 31, 1998.

STOCK-BASED COMPENSATION

    The Company accounts for stock-based employee compensation arrangements
using the intrinsic value method in accordance with provisions of Accounting
Principles Board ("APB") Opinion No. 25, "Accounting for Stock Issued to
Employees," and complies with the disclosure provisions of SFAS No. 123,
"Accounting for Stock-Based Compensation." Under APB Opinion No. 25,
compensation cost is generally recognized based on the difference, if any, on
the date of grant between the fair value of the Company's stock and the amount
an employee must pay to acquire the stock.

REVENUE RECOGNITION

    Revenues from time and materials contracts are recognized based on fixed
hourly rates for direct labor hours expended. Revenues from fixed-price
contracts are recognized on the percentage-of-completion method, with costs and
estimated profits recorded as work is performed. Revenues from
cost-plus-fixed-fee contracts are recognized on the basis of direct costs plus
indirect costs incurred plus a fixed profit percentage. Revenues exclude the
cost of media and advertising purchases reimbursed by clients.

    Cost of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.
Provisions for estimated losses on uncompleted contracts are made in the period
in which such losses are determined. Changes in contract performance and
estimated profitability, including final contract settlements, may result in
revisions to costs and

                                      F-10
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

revenues and are recognized in the period in which the revisions are determined.
Unbilled receivables on contracts are comprised of costs, plus earnings on
certain contracts in excess of contractual billings on such contracts. Cash
received in excess of costs incurred is classified as deferred revenue.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                                                        ACCOUNTS
                                                                       RECEIVABLE
                                                    REVENUES FOR         AS OF
                                                   THE YEAR ENDED     DECEMBER 31,
                                                  DECEMBER 31, 1998       1998
                                                  -----------------   ------------
<S>                                               <C>                 <C>
Customer A......................................         15%                12%
Customer B......................................         12%                13%
</TABLE>

INCOME TAXES

    Income taxes are accounted for using an asset and liability approach that
requires the recognition of taxes payable or refundable for the current year and
deferred tax liabilities and assets for the future tax consequences of events
that have been recognized in the Company's financial statements or tax returns.
The measurement of current and deferred tax liabilities and assets are based on
provisions of the enacted tax law; the effects of future changes in tax laws or
rates are not anticipated. The measurement of deferred tax assets is reduced, if
necessary, by the amount of any tax benefits that, based on available evidence,
are not expected to be realized.

EARNINGS PER SHARE

    SFAS No. 128 "Earnings Per Share," requires the presentation of basic and
diluted earnings per share. Basic net income (loss) per share is computed by
dividing income (loss) attributable to common stockholders by the weighted
average number of common shares outstanding for the period. The diluted net
income (loss) per share data is computed using the weighted average number of
common shares outstanding plus the dilutive effect of common stock equivalents,
unless the common stock equivalents are antidilutive.

RECENT ACCOUNTING PRONOUNCEMENTS

    In April 1998, the AICPA issued Statement of Position 98-5, "Reporting on
the Costs of Start-Up Activities" ("SOP 98-5"). SOP 98-5, which is effective for
fiscal years beginning after December 15, 1998, provides guidance on the
financial reporting of start-up costs and organization costs. It requires costs
for start-up activities and organization costs to be expensed as incurred. As
the Company has expensed these costs historically, the adoption of this standard
is not expected to have a significant impact on its results of operations,
financial position or cash flows.

    In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
"Accounting for Derivatives and Hedging Activities" ("SFAS No. 133"), which
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, as amended, is effective for all fiscal quarters of fiscal years
beginning after June 15, 2000 and management has not yet determined its effect
on the Company's financial statements or disclosures.

                                      F-11
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

RECLASSIFICATIONS

    Certain amounts have been reclassified to conform with the current
presentation.

INTERIM FINANCIAL INFORMATION

    The financial information as of September 30, 1999 and for the nine months
ended September 30, 1998 and 1999 is unaudited but includes all adjustments,
consisting only of normal recurring adjustments, that AppNet's management
considers necessary for a fair presentation of AppNet's operating results and
cash flows for such periods. Results for the nine month period ended
September 30, 1999 are not necessarily indicative of results to be expected for
the full fiscal year of 1999 or for any future period.

3.  ACQUISITIONS:

1998 ACQUISITIONS

    From March 1998 through December 1998, the Company acquired businesses in
the Internet and electronic commerce professional services industry.
Collectively, these entities are referred to as the "1998 Acquired Businesses."
The accounts of the Acquired Businesses are included in the accompanying
consolidated financial statements from the date of their respective
acquisitions. These acquisitions are described as follows:

    On March 12, 1998, the Company acquired the assets of Arbor Intelligent
Systems, Inc. ("Arbor"), for an aggregate purchase price of approximately
$3,100,000, including transaction costs, of which $1,100,000 was paid in the
form of the Company's Series A-1 Convertible Preferred Stock (266,796 shares
valued at $4 per share), and $2,000,000 was paid in cash. Arbor is engaged in
the business of providing object-oriented development services.

    On April 30, 1998, the Company acquired the assets of LOGEX International,
L.L.C. ("LOGEX"), in exchange for approximately $300,000 in cash and a five-year
convertible note in the principal amount of $300,000 (Note 9). The former
shareholders of LOGEX are entitled to a contingent consideration payment in the
event that certain performance criteria are achieved by LOGEX during the year
ending April 30, 1999. LOGEX provides electronic commerce systems integration
services and is located in Falls Church, Virginia.

    On August 25, 1998, the Company acquired all the outstanding stock of
Software Services Corporation, Inc. ("SSC") for an aggregate purchase price of
approximately $23,000,000, including transaction costs, of which $12,000,000 was
paid in the form of company stock, and $11,000,000 was paid in cash. In
connection with the SSC acquisition, the Company issued 11,576 shares of its
Class B Preferred Stock at a price of $1,000 per share and 1,387,095 shares of
Company Common Stock at a price of $.3007 per share to the former SSC
shareholders. Since its inception in 1980, SSC has been in the business of
providing applications development, network design services and both full time
and temporary technical personnel, primarily in Michigan.

    On October 2, 1998, the Company acquired all the outstanding stock of New
Media Publishing, Inc. ("NMP") for an aggregate purchase price of approximately
$19,470,000, including transaction costs, of which $8,820,000 was paid in cash,
$9,500,000 was paid in the form of Company Common Stock (1,111,111 shares valued
at $8.55 per share) and the remainder was paid in options to purchase 145,518
shares of Company Common Stock valued using the Black-Scholes pricing model, at
$1,150,000. These options were issued in exchange for previously outstanding
options of NMP, have

                                      F-12
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

exercise prices ranging from $.06 to $8.69 and have vesting schedules ranging
from three months to 32 months. The value associated with these options has been
classified as additional paid-in capital on the accompanying consolidated
balance sheet. If NMP meets certain revenue and profitability targets and
certain NMP executives remain employed by the Company, an additional $14,000,000
is potentially payable to the former owners of NMP in cash and Company Common
Stock (Note 16). NMP is based in Falls Church, Virginia and offers interactive
community-building services to business and nonprofit organizations.

    On October 12, 1998, the Company acquired all the outstanding stock of
Century Computing, Incorporated ("Century"). Century is located in Laurel,
Maryland, and is a provider of system integration and processing services in
electronic commerce to the Federal government, Federal government contractors
and commercial enterprises. The aggregate purchase price was approximately
$29,168,000, including transaction costs, of which $2,000,000 was provided in
the form of a convertible note (Note 9), $21,600,000 was paid in cash and the
remainder was paid in options to purchase 704,127 shares of Company Common Stock
valued, using the Black-Scholes pricing model, at $5,568,000. These options were
issued in exchange for previously outstanding options of Century, have exercise
prices ranging from $.71 to $1.00 and were fully vested at the time of issuance.
The value associated with these options has been classified as additional paid
in capital on the accompanying consolidated balance sheet.

    On October 20, 1998, the Company acquired all the outstanding stock of
Research and Planning, Inc. ("R&P") for an aggregate purchase price of
approximately $22,100,000, including transaction costs, of which $15,100,000 was
paid in cash, $6,000,000 was paid in the form of Company Common Stock (701,754
shares valued at $8.55 per share), and $1,000,000 was provided in the form of
notes to the previous R&P shareholders (Note 9). R&P was founded in 1979 in
Cambridge, Massachusetts and provides ERP integration and data warehousing
services.

    On December 14, 1998, the Company acquired all the outstanding stock of The
Kodiak Group, Inc. ("Kodiak") for an aggregate purchase price of approximately
$16,350,000, including transaction costs, of which $12,100,000 was paid in cash,
$2,250,000 was paid in the form of Company Common Stock (197,368 shares valued
at $11.40 per share) and $2,000,000 was provided in the form of notes to the
previous Kodiak shareholders. In addition, the former Kodiak shareholders are
entitled to a potential contingent payment payable in cash of up to $4.0 million
in the event that Kodiak sells or licenses certain technology during the
three-year period ending December 14, 2001. Kodiak has offices in Pittsfield,
Massachusetts, Charlottesville, Virginia and Denver, Colorado, and specializes
in electronic data interchange integration and processing services.

1999 ACQUISITIONS

    From January 8, 1999 through March 29, 1999, the Company acquired an
additional five businesses in the Internet and electronic commerce professional
services industries. Collectively, these entities are referred to as the "1999
Acquired Businesses".

    On January 8, 1999, the Company acquired all the outstanding stock of i33
communications corp. ("i33"), which is based in New York City. i33 provides
media buying and planning services, and, specializes in the design of creative
Internet solutions to its customers. The aggregate purchase price was
approximately $21,600,000, plus transaction costs, consisting of $10,300,000
paid in cash and $11,300,000 paid in the form of convertible notes to the
previous i33 shareholders.

                                      F-13
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

    On March 4, 1999, the Company acquired all of the issued and outstanding
stock of Sigma6, Inc. ("Sigma6") which is based in Michigan and specializes in
providing brand identity services to its customers. The aggregate purchase price
was approximately $2,500,000, plus transaction costs, consisting of $1,250,000
paid in cash and $1,250,000 paid in shares of Company Common Stock (97,465
shares valued at $12.83 per share). If certain performance criteria are met
during the 12-month period ending December 31, 1999, the former stockholders of
Sigma6 are entitled to a contingent payment of up to $2,800,000 consisting of
cash and Company Common Stock.

    On March 15, 1999, the Company acquired certain assets of Salzinger &
Company, Inc. ("Salzinger"). The aggregate purchase price was approximately
$8,500,000, plus transaction costs, consisting of $5,000,000 in cash and
$3,500,000 in Company Common Stock (245,614 shares valued at $14.25 per share).
If certain performance criteria are met during the period ending September 30,
2000, Salzinger is entitled to a contingent payment of up to $5,000,000 in cash
or, at the seller's option, cash and Company Common Stock. Salzinger is based in
Vienna, Virginia and provides business-level strategic consulting services.

    On March 26, 1999, the Company acquired all of the issued and outstanding
stock of Internet Outfitters, Inc. ("Internet Outfitters") which is based in
Santa Monica, California and provides localization and creative Web-development
services. The aggregate purchase price was approximately $9,500,000, plus
transaction costs, consisting of cash, $2,700,000 in Company Common Stock
(157,895 shares valued at $17.10 per share), and the issuance of 22,300 options
to purchase Company Common Stock. If certain performance criteria are met during
the year ending December 31, 1999, the former stockholders are entitled to a
contingent payment of up to $3,500,000 in cash and Company Common Stock.

    On March 29, 1999, the Company acquired certain assets of Transform
IT, Incorporated ("Transform IT") which is based in Alexandria, Virginia and
provides process-level strategic consulting services. The aggregate purchase
price was approximately $5,120,000, plus transaction costs, consisting of
$3,500,000 in cash and $1,620,000 in Company Common Stock (94,737 shares valued
at $17.10 per share). If certain performance criteria are met during the
twelve-month period ending March 31, 2000, the seller is entitled to a
contingent payment of up to $3,500,000 in cash.

ALLOCATION OF PURCHASE CONSIDERATION

    The acquisitions have been accounted for using the purchase method of
accounting and, accordingly, the recognized purchase price has been allocated,
based on preliminary estimates of fair value, to the tangible assets acquired
and liabilities assumed and, with the advice of independent valuation experts,
to the identifiable intangible assets, on the acquisition dates. The Company has
recorded identifiable intangibles on the 1998 Acquired Businesses, as follows:

<TABLE>
<CAPTION>
                                                    APPRAISED
                                                      VALUE      USEFUL LIFE
                                                    ----------   ------------
<S>                                                 <C>          <C>
Customer lists....................................  $4,160,000    7-24 months
Non-competition agreements........................   2,800,000      36 months
Assembled workforce...............................   4,803,000   12-48 months
Proprietary technology............................   4,325,000   12-24 months
</TABLE>

    As of December 31, 1998, the purchase price in excess of identified tangible
and intangible assets and liabilities assumed in the amount of $93,159,000 was
allocated to goodwill.

                                      F-14
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

    In the three month period ended March 31, 1999, the Company recorded
identifiable intangibles related to the 1999 Acquisitions of $2,875,000. This
preliminary purchase price allocation also resulted in the allocation of
$43,225,000 to goodwill. Final estimates of fair value will be made upon the
completion of independent valuations for certain 1999 acquisitions and the final
determination of certain preexisting contingencies. As a result of the early
stage of development of the Internet and electronic commerce, the dynamics of
this rapidly evolving industry and the expectation of increasing competition,
the recorded goodwill is being amortized on a straight-line basis over three
years, the estimated period of its benefit.

    The following unaudited pro forma consolidated amounts give effect to the
1998 acquisitions as if they had occurred on January 1, 1998, by consolidating
the results of operations of the 1998 Acquired Businesses with the results of
AppNet for the year ended December 31, 1998. The pro forma amounts do not
purport to be indicative of the results of operations that would have been
achieved had the transactions been in effect as of the beginning of 1998 and
should not be construed as being representative of future results of operations.

<TABLE>
<CAPTION>
                                                              DECEMBER 31, 1998
                                                                 (UNAUDITED)
                                                              -----------------
<S>                                                           <C>
Revenues....................................................    $ 54,493,000
Net loss attributable to common stockholders................     (50,217,000)
Basic and diluted net loss per share........................    $      (2.81)
</TABLE>

    The following unaudited pro forma consolidated amounts give effect to the
1999 acquisitions as if they had occurred on January 1, 1999:

<TABLE>
<CAPTION>
                                                             FOR THE NINE MONTHS
                                                                    ENDED
                                                             SEPTEMBER 30, 1999
                                                             -------------------
                                                                 (UNAUDITED)
<S>                                                          <C>
Revenues...................................................      $ 77,430,000
Net loss attributable to common stockholders...............      $(53,182,000)
Basic and diluted net loss per share.......................      $      (2.54)
</TABLE>

4.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following as of:

<TABLE>
<CAPTION>
                                                     DECEMBER 31,   SEPTEMBER 30,
                                                         1998           1999
                                                     ------------   -------------
                                                                     (UNAUDITED)
<S>                                                  <C>            <C>
Accounts receivable................................  $ 9,571,000     $21,933,000
Unbilled accounts receivable.......................    2,791,000       6,674,000
Allowance for doubtful accounts....................   (1,124,000)     (1,597,000)
                                                     -----------     -----------
    Accounts receivable, net.......................  $11,238,000     $27,010,000
                                                     ===========     ===========
</TABLE>

                                      F-15
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

5.  OTHER CURRENT ASSETS:

    Other current assets consists of the following as of:

<TABLE>
<CAPTION>
                                                              DECEMBER 31,
                                                                  1998
                                                              ------------
<S>                                                           <C>
Income tax receivable.......................................  $   808,000
Other current assets........................................      310,000
                                                              -----------
    Other current assets....................................  $ 1,118,000
                                                              ===========
</TABLE>

6.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following as of:

<TABLE>
<CAPTION>
                                                     DECEMBER 31,   SEPTEMBER 30,
                                                         1998           1999
                                                     ------------   -------------
                                                                     (UNAUDITED)
<S>                                                  <C>            <C>
Computers and equipment............................  $ 2,797,000     $ 7,164,000
Furniture and fixtures.............................      288,000       1,123,000
Leasehold improvements.............................      211,000         795,000
                                                     -----------     -----------
                                                       3,296,000       9,082,000
Accumulated depreciation...........................     (284,000)     (1,723,000)
                                                     -----------     -----------
    Property and equipment, net....................  $ 3,012,000     $ 7,359,000
                                                     ===========     ===========
</TABLE>

7.  INTANGIBLE ASSETS:

    Intangible assets consists of the following as of:

<TABLE>
<CAPTION>
                                                   DECEMBER 31,   SEPTEMBER 30,
                                                       1998           1999
                                                   ------------   -------------
                                                                   (UNAUDITED)
<S>                                                <C>            <C>
Customer lists...................................  $  4,160,000   $  4,060,000
Non-competition agreements.......................     2,800,000      2,900,000
Assembled workforce..............................     4,803,000      7,677,000
Proprietary technology...........................     4,325,000      4,325,000
Goodwill.........................................    93,159,000    133,819,000
                                                   ------------   ------------
                                                    109,247,000    152,781,000
Accumulated amortization.........................    (9,867,000)   (50,753,000)
                                                   ------------   ------------
    Intangible assets, net.......................  $ 99,380,000   $102,028,000
                                                   ============   ============
</TABLE>

                                      F-16
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

8.  ACCRUED LIABILITIES

    Accrued liabilities consist of the following:

<TABLE>
<CAPTION>
                                                     DECEMBER 31,   SEPTEMBER 30,
                                                         1998           1999
                                                     ------------   -------------
                                                                     (UNAUDITED)
<S>                                                  <C>            <C>
Accrued compensation and benefits..................   $2,590,000     $ 4,103,000
Accrued dividends on Class A Preferred Stock and
  Class B Preferred Stock..........................      689,000              --
Payments due to former shareholders of Acquired
  Businesses.......................................    1,500,000       1,600,000
Accrued stock-based and other acquisition-related
  compensation.....................................           --      14,072,000
Other accrued liabilities..........................    2,132,000       9,150,000
                                                      ----------     -----------
    Accrued liabilities............................   $6,911,000     $28,925,000
                                                      ==========     ===========
</TABLE>

9.  DEBT:

    Debt consists of the following:

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   SEPTEMBER 30,
                                                                  1998           1999
                                                              ------------   -------------
                                                                              (UNAUDITED)
<S>                                                           <C>            <C>
Credit facilities:
  Credit facility, bears interest at the lender's prime rate
    plus .5% (8.25% at December 31, 1998), interest due
    monthly.................................................  $19,730,000     $        --
  Credit facility, bears interest at the lender's prime rate
    (7.75% at
    December 31, 1998), interest due monthly................   17,731,000              --
  Credit facility, bear interest at the lender's prime rate
    plus .25%--1.5% or various LIBOR rates plus 2.25%--3.5%,
    interest due at varying monthly intervals, interest rate
    of 9.75% at September 30, 1999 (unaudited)..............           --       3,660,000
                                                              -----------     -----------
                                                               37,461,000       3,660,000
                                                              -----------     -----------
</TABLE>

                                      F-17
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   SEPTEMBER 30,
                                                                  1998           1999
                                                              ------------   -------------
                                                                              (UNAUDITED)
<S>                                                           <C>            <C>
Convertible notes:
  Note payable, principal and interest due October 13, 1999,
    bears interest at 7%, convertible at the option of the
    holder for common stock at $8.55 per share..............    2,000,000         485,000
  Note payable, principal and interest due June 29, 2003,
    bears interest at 5%, convertible at 80% of common stock
    price upon a sale of Company or an initial public
    offering................................................      406,000              --
  Notes payable, principal and interest due December 14,
    2001, bear interest at 8%, convertible at the option of
    the holder for common stock at $11.40 per share.........    2,000,000       2,000,000
  Note payable, principal and interest due April 30, 2003,
    bears interest at the prime rate (7.75% at December 31,
    1998), interest payable quarterly at July 31, October
    31, January 31 and April 30, convertible at the option
    of the holder at 80% of common stock price on a sale of
    Company or an initial public offering...................      300,000              --
  Notes payable, principal and interest due January 8, 2002,
    bear interest at rates ranging from 4.3% to 6%, two
    notes totaling $3,500,000 convertible at the option of
    the holder at 80% of the common stock price on a sale of
    Company or an initial public offering, two notes
    totalling $6,800,000 convertible at the option of the
    holder for common stock at $11.40 per share.............           --       6,800,000
                                                              -----------     -----------
                                                                4,706,000       9,285,000
                                                              -----------     -----------
Other long-term debt:
  Note payable, principal and interest due January 8, 2002,
    bearing interest at 6%..................................           --       3,500,000
  Notes payable, principal and interest due January 1, 2000,
    bear interest at 6%.....................................    1,000,000       1,000,000
  Note payable to Smart Technology, L.L.C., due the earlier
    of an initial public offering or June 29, 2000, bears
    interest at 12%.........................................      150,000              --
  Other notes payable.......................................      425,000         140,000
  Note payable to a member of Company management, due at
    earlier of an initial public offering or December 31,
    1999....................................................       50,000              --
                                                              -----------     -----------
                                                                1,625,000       4,640,000
                                                              -----------     -----------
      Total debt............................................   43,792,000      17,585,000
  Less current portion......................................   (2,426,000)     (1,610,000)
                                                              -----------     -----------
      Long-term debt, net of current portion................  $41,366,000     $15,975,000
                                                              ===========     ===========
</TABLE>

    The future minimum principal payments of debt outstanding at December 31,
1998, as refinanced by the 1999 Credit Facilities, are as follows:

<TABLE>
<S>                                                           <C>
1999........................................................  $ 2,426,000
2000........................................................    1,199,000
2001........................................................   39,461,000
2002........................................................           --
2003........................................................      706,000
                                                              -----------
    Total...................................................  $43,792,000
                                                              ===========
</TABLE>

                                      F-18
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

1999 CREDIT FACILITIES

    On January 8, 1999, the Company replaced its two existing credit agreements
("the 1998 Credit Facilities") with two credit agreements (together the "1999
Credit Facilities") entered into with a syndicate of lenders providing for
$55,000,000 in borrowings. The 1999 Credit Facilities consist of $40,000,000 in
credit loans (the "Guaranteed Loans") which have been guaranteed by a
significant stockholder and $15,000,000 of additional credit loans (the
"Unguaranteed Loans"). The 1999 Credit Facilities mature on August 24, 2001. On
March 10, 1999, the Company amended the Unguaranteed Loans increasing available
borrowings from $15,000,000 to $26,000,000. Under the terms of the Unguaranteed
Loans, the amount borrowed cannot, at any time, exceed the amount borrowed under
the Guaranteed Loans.

    The Guaranteed Loans bear interest, at the Company's option, at various
LIBOR rates plus 2.5 percent or the lenders' base rate plus .5 percent. The
Guaranteed Loans require the Company to pay a quarterly commitment fee of
 .5 percent on the unused amounts.

    The Unguaranteed Loans bear interest, at the Company's option, at various
LIBOR rates or the lenders' base rate plus an applicable margin, as determined
by the Company's operating performance.

    The 1999 Credit Facilities include certain restrictive covenants which
require the Company, among other things, to maintain minimum levels of earnings
before interest, taxes, depreciation, and amortization, ratios of cash flow to
debt service and place limits on capital expenditures.

1998 CREDIT FACILITIES

    On August 25, 1998, the Company entered into a credit facility with a
commercial lender. The facility provided for borrowings of up to $15,000,000,
bore interest at the lender's base rate plus a defined percentage or at various
LIBOR rates, and was due on demand. For the period from August 25, 1998 to
October 13, 1998, the highest and weighted average balances outstanding under
the facility were $9,800,000 and $8,478,000, respectively.

    On October 13, 1998, the Company modified its facility and entered into two
credit agreements (the "1998 Credit Facilities") with two commercial lenders.
Under the 1998 Credit Facilities, each lender provided a $20 million line of
credit which was payable upon demand, guaranteed by a significant stockholder
and bore interest at the option of the Company at the lenders' base rate plus a
defined percentage or at various LIBOR options plus 2.5 percent. For the period
from October 13, 1998, to December 31, 1998, the highest and weighted average
balances under the 1998 Credit Facilities were $37,461,000 and $36,040,000,
respectively. During this period, the average interest rate was 8.13 percent.
One of the facilities provided for a quarterly commitment fee equal to
 .05 percent. As a result of the 1999 Credit Facilities, which replaced the 1998
Credit Facilities and qualify for non-current classification, the amounts
outstanding under the 1998 Credit Facilities as of December 31, 1998 have been
classified as long-term in the accompanying balance sheet. In connection with
debt refinancings during 1998, the Company charged to other expense
approximately $291,000 of previously deferred financing fees.

CONVERTIBLE NOTES

    In conjunction with certain of the Acquired Businesses, the Company issued
convertible notes, certain of which, at the option of the holders, allow the
holders to convert the notes to the Company Common Stock upon certain defined
events at either a stated price or a discount to the then current

                                      F-19
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

market price for the Company Common Stock. Upon an initial public offering of
the Company's Common Stock, the Company may be required to record an interest
charge of approximately $875,000 related to certain beneficial conversion
rights.

10. CAPITAL STOCK:

1998 COMMON STOCK SPLIT

    In June 1998, upon adoption of the Company's Second Restated Certificate of
Incorporation, a two-for-one stock split of the Company Common Stock was
effected. All share and per-share amounts, including stock option information,
have been restated in these notes and the accompanying financial statements to
reflect this stock split and the 1999 Reverse Common Stock Split (see Note 18).

GTCR INVESTMENT

    In June 1998, the Company completed an investment transaction with GTCR
Golder Rauner, L.L.C. and certain related investment funds ("GTCR") and Smart
Technology, L.L.C. ("Smart Technology"), a party related to the Company's
President and Chief Executive Officer (the "GTCR Investment"). Prior to the GTCR
Investment, the Company had 5,343,860 shares of issued and outstanding common
stock all of which were owned by Company's initial investors (the "Initial
Investors"). Pursuant to the GTCR Investment, the Company made a net redemption
of 1,350,887 shares of Company Common Stock from certain of the Initial
Investors for $.3007 per share or $406,000 and sold an aggregate 11,559,144
shares to GTCR and Smart Technology for $.3007 per share or $3,476,000 before
deduction for expenses and fees. The Company also sold 1,251,228 shares of
Company Common Stock to the Company's President and Chief Executive Officer (the
"Reserved Stock") and 531,773 shares to other certain parties affiliated with
the GTCR Investment. These shares were sold for $.3007 per share.

    GTCR and Smart Technology committed to provide up to an additional
$96,500,000 in capital to the Company to fund acquisitions as well as other
general corporate purposes. Upon the request of the Board and the approval of
GTCR and Smart Technology, shares of Class A Preferred Stock will be issued to
GTCR and Smart Technology in the ratio of 98 percent to 2 percent, respectively,
in exchange for $1,000 per share. No shares of Class A Preferred Stock were
issued at the time of the GTCR Investment. In connection with the issuance of
Class B Preferred Stock as part of the SSC transaction, the capital commitment
from GTCR and Smart Technology was decreased to $84,900,000.

    In connection with the GTCR Investment, the Company entered into a
management services agreement with GTCR for $200,000 per year.

                                      F-20
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

COMMON STOCK SUBJECT TO PUT RIGHTS

    In conjunction with its acquisition of Arbor, the Company issued 266,796
shares of Series A-1 Convertible Preferred Stock with a liquidation value of
$1,100,000. Pursuant to their terms, these shares were converted into 187,225
shares of Company Common Stock at the time of the GTCR Investment. As part of
the GTCR Investment, the Board of Directors authorized the repurchase of 138,455
shares of the common stock issued upon the conversion for $5.70 per share which
provided the holders a return equivalent to the liquidation value of the
Series A-1 Convertible Preferred Stock. In addition, the Board of Directors
agreed to grant the holders of the remaining 48,771 shares of Company Common
Stock the right to require the Company to repurchase their shares for cash at
$5.70 per share beginning on March 11, 1999, and extending for thirty days.

CLASS A PREFERRED STOCK

    The holders of the Class A Preferred Stock ("Class A Preferred Stock") are
entitled to a 6 percent cumulative dividend which is paid when declared by the
Company's Board of Directors. The Company can redeem the shares at any time for
their liquidation value of $1,000 per share plus accrued but unpaid dividends.
The shares have no voting or conversion rights. Upon the earliest of the
liquidation of the Company, a change in the control of the Company, an initial
public offering ("IPO") or other fundamental change in the Company, as defined,
a majority of the holders of the Class A Preferred stock can require the Company
to redeem their shares for their liquidation value, plus accrued but unpaid
dividends. In the case of an IPO, the redemption is limited to the net funds
available from the IPO. GTCR holds approximately 97 percent of the outstanding
Class A Preferred Stock.

    The Company incurred certain fees associated with the issuance of the
Class A Preferred Stock. Through December 31, 1998, the Company paid a one
percent fee of $369,000 to GTCR based on the issuance of the Company's Class A
Preferred Stock to GTCR. The Company also incurred a commission of $262,000 to
one of the Company's directors in connection with purchases of Class A Preferred
Stock. These costs were deducted from the proceeds of the Class A Preferred
Stock shown in the accompanying balance sheet. The Class A Preferred Stock is
being accreted to its liquidation value over the period to its estimated
redemption date, which is expected to occur in 1999. The accretion of the costs
associated with the Class A Preferred Stock was $184,000 for the year ended
December 31, 1998 and is classified as dividends on and accretion of preferred
stock in the accompanying statements of operations and stockholders' equity.

CLASS B PREFERRED STOCK

    The holders of Class B Preferred Stock are entitled to a 6 percent
cumulative dividend which is paid when declared by the Company's Board of
Directors. The shares have no voting rights. The Company has the contractual
ability to redeem or convert all outstanding shares of Class B Preferred Stock
upon an initial public offering.

STOCK WARRANTS

    The Company has issued warrants to purchase 84,795 shares of Company Common
Stock at $.3007 per share, of which 70,175 are held by Smart Technology. The
values attributable to these warrants at the time of issuance are not
significant and, therefore, have not been separately presented in the

                                      F-21
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

consolidated financial statements. The Company has also issued warrants to
purchase 121 shares of Class A Preferred Stock at $1,000 per share.

RESERVED STOCK

    The Reserved Stock is subject to a Senior Management Agreement dated
June 29, 1998 (the "Agreement") with the Company's President and Chief Executive
Officer. At the time of the GTCR Investment, 1,251,228 shares of Reserved Stock
were purchased at a price of $.3007 per share in exchange for cash equal to the
par value of the stock and a promissory note equal to the remaining balance.
Pursuant to the Agreement, the Company may, at its discretion, repurchase any or
all of the Reserved Stock for the $.3007 per share paid by the executive in
order to issue a corresponding number of shares and options to purchase shares
to certain employees. The Company's right to repurchase the Reserved Stock
expires on the first to occur of (a) a sale of the Company, (b) the failure by
GTCR to own 50 percent of the original number of Company Common Shares it
purchased in conjunction with the GTCR Investment and (c) an IPO ("Qualifying
Events"). As of December 31, 1998, the Company's President and Chief Executive
Officer had 659,649 shares of Reserved Stock remaining. Additional shares were
repurchased subsequent to year end reducing the total shares outstanding to
210,119 as of March 29, 1999.

    Because the number of recorded shares to be held by the executive is not
fixed, the Company will record a charge to income equal to the difference
between the fair value of the Company's stock on the date of the Qualifying
Event and $.3007, multiplied by the number of remaining Reserved Shares retained
by the executive following the occurrence of the Qualifying Event.

SALES TO MANAGEMENT

    Shortly after the GTCR Investment, the Company sold 503,860 shares of
Company Common Stock to management for $.3007 per share, the fair value at that
time. In November 1998, the Company sold 49,123 shares of Common Stock to a
member of management for $8.55 per share, the fair value at that time.

11. RETIREMENT PLAN:

    During 1998, the Company maintained various 401(k) plans for its employees.
These plans had been established by the 1998 Acquired Businesses prior to
acquisition. Effective February 1, 1999, the employees of the 1998 Acquired
Businesses began making contributions to the AppNet plan. During 1998, the
Company's expense under these plans totaled $281,000.

    Effective February 1, 1999, the Company established a 401(k) retirement plan
for the benefit of all eligible employees. Participants may contribute up to
15 percent of their annual compensation to the plan. Employee contributions are
fully vested. The Company will match 50 percent of each employees' contributions
up to six percent of each employees' salary. The Company may also elect to make
a discretionary contribution as determined by its Board of Directors on an
annual basis. Employees will fully vest in the Company's matching and any
discretionary contributions ratably over three years.

12. EMPLOYEE STOCK OPTION PLANS:

    The Company had two stock option plans as of December 31, 1998, which were
the 1998 Stock Option and Incentive Plan and an incentive stock option plan
assumed in connection with the

                                      F-22
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

acquisition of Century (the "Century Plan"). Options under these plans expire no
later than ten years from the date of the grant or when employment ceases,
whichever comes first. The maximum number of shares of common stock which may be
issued pursuant to the stock option plans is 913,042 at December 31, 1998.

    Options granted under the stock option plan are accounted for under APB
Opinion No. 25, and since options have been granted at prices equal to the fair
value of the Company's Common Stock on the date of grant, no compensation
expense has been recognized for the option grants. Certain options converted
from the 1998 Acquired Businesses have exercise prices ranging from $.06 to
$8.69. The value of these options was included in the purchase price of the 1998
Acquired Businesses. Had compensation cost for the plan been determined based on
the estimated fair value of the options at the grant dates consistent with the
method of SFAS No. 123, pro forma net loss attributable to common stockholders
would have been approximately $15,408,000 or a net loss of $1.43 per share for
1998. The weighted average fair value of the options granted by the Company
during 1998 is estimated to be $3.85 per option assuming the following: no
dividend yield, risk-free interest rate of 5 percent, an expected term of the
options of four years and an expected volatility of 45 percent.

    The following summarizes option activity during 1998:

<TABLE>
<CAPTION>
                                                                      WEIGHTED
                                                      NUMBER OF       AVERAGE
                                                       SHARES      EXERCISE PRICE
                                                     -----------   --------------
<S>                                                  <C>           <C>
Granted in 1998....................................      500,351        $7.67
Options converted from 1998 Acquired Businesses....      849,641          .91
Exercised in 1998..................................     (425,339)         .74
Cancelled in 1998..................................      (11,614)        1.08
                                                     -----------        -----
Options outstanding, December 31, 1998, exercise
  prices range of $.06 to $11.40...................      913,039        $4.67
                                                     ===========        =====
Options exercisable, December 31, 1998.............      296,736        $1.37
                                                     ===========        =====
</TABLE>

    From January 1, 1999 through March 29, 1999, the Company issued options to
purchase 882,883 shares of Company Common Stock.

    In March 1999, the Company issued 337,776 stock options to a member of
management. These options have an exercise price of $12.83 and vest ratably over
4 years. As a result of this grant, the Company recorded deferred compensation
of $481,000. The amount of deferred compensation was based on the difference
between the estimated fair market value of the Company Common Stock at the date
of grant, as determined by the most recent third party stock transaction, and
the stated exercise price. The Company amortized $4,000 of the deferred
compensation for the three months ended March 31, 1999 in the unaudited
consolidated statement of operations.

13. EARNINGS PER SHARE:

    Shares of common stock which are contingently payable pursuant to the
acquisition agreements (Note 16) are not included in the calculation of weighted
average shares outstanding for the period presented, as circumstances may arise
in which the shares would not be issued. In addition, the impact

                                      F-23
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

of other potentially dilutive securities are excluded from diluted earnings per
share due to their antidilutive effect as follows:

<TABLE>
<CAPTION>
                                                              DECEMBER 31,
                                                                  1998
                                                              ------------
<S>                                                           <C>
Stock options...............................................      539,312
Warrants....................................................       84,010
Convertible notes...........................................      413,554
</TABLE>

    In addition, as of December 31, 1998, $706,000 of notes payable are
convertible, upon completion of an initial public offering of Company Common
Stock, at 80% of the IPO price.

14. INCOME TAXES:

    The Company follows the provisions of SFAS No. 109, "Accounting for Income
Taxes," for financial reporting purposes. Deferred tax assets or liabilities at
the end of each period are determined using the currently enacted tax rates to
apply to taxable income in the period in which the deferred tax asset or
liability is expected to be settled or realized.

    The sources of and differences between the financial accounting and tax
basis of AppNet's assets and liabilities which give rise to the net deferred tax
liability as of December 31, 1998 and September 30, 1999, are as follows:

<TABLE>
                                                              DECEMBER      SEPTEMBER
                                                                 31,           30,
                                                                1998          1999
                                                             -----------   -----------
                                                                           (UNAUDITED)
<S>                                                          <C>           <C>
Deferred tax liabilities:
  Intangible assets........................................  $ 2,241,000   $ 3,735,000
Deferred tax assets:
  Allowance for doubtful accounts..........................      434,000       438,000
  Net operating loss carryforward..........................    1,624,000     1,638,000
  Cumulative amortization differences on intangibles.......      994,000     6,729,000
  Other....................................................      506,000       564,000
  Valuation allowance......................................   (1,317,000)   (5,634,000)
                                                             -----------   -----------
    Net deferred tax liability.............................  $   --        $   --
                                                             ===========   ===========
</TABLE>

    The components of the benefit from income taxes during the year ended
December 31, 1998 are as follows:

<TABLE>
<CAPTION>
                                                                   SEPTEMBER 30,
                                              DECEMBER 31, 1998         1999
                                              ------------------   --------------
<S>                                           <C>                  <C>
                                                                   (UNAUDITED)
Current--
  Federal...................................      $  (400,000)      $   --
  State.....................................          250,000           328,000
                                                  -----------       -----------
    Total...................................         (150,000)
Deferred--
  Federal...................................          (50,000)          --
  State.....................................        --                  --
                                                  -----------       -----------
    Income tax benefit......................      $  (200,000)      $   328,000
                                                  ===========       ===========
</TABLE>

                                      F-24
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

    For the year ended December 31, 1998 and the nine months ended
September 30, 1999, the income tax (benefit) provision differed from the amounts
computed at the statutory rate, as follows:

<TABLE>
<CAPTION>
                                                    DECEMBER 31,   SEPTEMBER 30,
                                                        1998           1999
                                                    ------------   -------------
                                                                    (UNAUDITED)
<S>                                                 <C>            <C>
Income tax benefit computed at federal statutory
  rates...........................................  $(4,957,000)   $(20,290,000)
Nondeductible intangible amortization.............    2,402,000      10,662,000
Nondeductible portion of stock-based and other
  acquisition-related compensation, net...........      497,000       5,248,000
State income taxes, net of federal income tax
  benefit.........................................      165,000         216,000
Changes in valuation allowance....................    1,317,000       4,317,000
Other, net........................................      376,000         175,000
                                                    -----------    ------------
    Total.........................................  $  (200,000)   $    328,000
                                                    ===========    ============
</TABLE>

    As of December 31, 1998 and September 30, 1999, the Company had
approximately $4,200,000 and $8,500,000 (unaudited), respectively, of net
operating loss carryforwards which begin to expire in 2018. The Company has
recorded a valuation allowance for deferred tax assets as of December 31, 1998
and September 30, 1999, of $1,317,000 and $5,634,000 (unaudited), respectively.
In assessing the realizability of deferred tax assets, management considers
whether it is more likely than not that some portion or all of the deferred tax
assets will not be realized. The ultimate realization of deferred tax assets is
dependent upon the generation of future taxable income during the periods in
which those temporary differences become deductible. Management considers the
scheduled reversal of deferred tax liabilities, projected future taxable income,
and tax planning strategies in making this assessment.

15. RELATED PARTIES:

    At December 31, 1998, the Company was owed $821,000 from members of
management. These borrowings are due at varying dates through November, 2008.

    At December 31, 1998, the Company had outstanding borrowings of $150,000
from Smart Technology, $50,000 from a member of management, and $406,000 from
one of the Company's Initial Investors. Also, the convertible notes of
$4,306,000 as of December 31, 1998 and the notes payable for $1,000,000 are due
to former shareholders of the Acquired Businesses, the majority of whom are
current AppNet employees. Subsequent to December 31, 1998, the Company issued
convertible notes of $10,300,000 due to former shareholders of one of the 1999
Acquired Businesses, both of whom are current AppNet employees. The Company also
issued, subsequent to December 31, 1998, a convertible note of $1,000,000 to a
trust established for employees of one of the 1999 Acquired Businesses. Since
the trust is available to the Company's creditors, the trust's assets are
included in these financial statements. As such, the trust's note receivable and
the Company's convertible note payable held by the trust have been eliminated in
consolidation.

    In December 1997, the Company entered into an agreement which was
consummated in 1998 to purchase a 50 percent ownership interest in AppNet
Commerce Services, Inc. ("ACS"). ACS was established to conduct electronic
commerce transaction processing. The remaining 50 percent interest in ACS is
owned by another company. In 1998, due to the failure of the venture to maintain
its customer base and to generate sufficient revenues to cover operating
expenses, the Company determined that its investment was impaired and recorded a
charge of approximately $300,000 which is included in the accompanying statement
of operations as a component of other expense. As of December 31, 1998, the
investment in ACS has a value of zero.

                                      F-25
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

    During 1998, the Company was party to a professional services agreement with
one of its directors. The agreement provided for the payment of $17,000 per
month. The Company incurred approximately $200,000 related to this agreement in
1998. In addition, the Director received a fee of $350,000 in association with
the GTCR Investment. The professional services agreement also provides for a one
percent commission on certain issuances Class A Preferred Stock (Note 10). The
Company also paid approximately $336,000 related to certain fees and a
professional services agreement with one of its initial investors.

16. COMMITMENTS AND CONTINGENCIES:

LEASES

    As of December 31, 1998, the Company has noncancellable operating leases,
primarily for real estate, that expire over the next six years. Rental expense
during 1998 was $512,000.

    Future minimum lease payments under noncancellable operating leases are as
follows as of December 31, 1998:

<TABLE>
<S>                                                           <C>
1999........................................................  $1,424,000
2000........................................................   1,294,000
2001........................................................   1,187,000
2002........................................................   1,082,000
2003........................................................     872,000
Thereafter..................................................     792,000
                                                              ----------
    Total minimum lease payments............................  $6,651,000
                                                              ==========
</TABLE>

LITIGATION AND CLAIMS

    In connection with the acquisition of Internet Outfitters, approximately
$1,450,000 of the purchase price in the form of shares of Company Common Stock,
based upon the fair value of $17.10 per share at the date of acquisition, was
pledged to the Company and escrowed to be available to satisfy any potential
liability in connection with a license dispute. The Company also held back
$750,000 of the cash purchase price to be used to satisfy this and any other
indemnification claims.

    The Company is subject to lawsuits, investigations and claims arising out of
the ordinary course of business, including those related to commercial
transactions, contracts, government regulation and employment matters. Certain
claims, suits and complaints have been filed or are pending against the Company.
In the opinion of management, based on all known facts, all matters are without
merit, and except as related to the aforementioned Internet Outfitters claim,
are of such kind, or involve such amounts, as would not have a material effect
on the financial position or results of operations of the Company if disposed of
unfavorably.

CONTINGENT PAYMENTS

    The Company's acquisition of NMP provided for additional contingent payments
of up to $14,000,000 as of December 31, 1998 in the form of cash and Company
Common Stock to be made to the former owners of NMP if NMP reaches certain
revenue and earnings before interest, taxes, depreciation, and amortization
targets for the period from October 1, 1998 to September 30, 1999. The amount of
this contingent payment varies based on a sliding scale of revenues and earnings
before

                                      F-26
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

interest, taxes, depreciation, and amortization. If these goals are reached,
approximately 42 percent of the contingent consideration will be reflected as
additional purchase consideration if and when paid. The remaining 58 percent of
the contingent consideration will be paid only if the targets are reached and
certain NMP employees remain employed by the Company. Accordingly, pursuant to
the consensus reached in Emerging Issues Task Force Issue 95-08, "Accounting for
Contingent Consideration Paid to the Shareholders of an Acquired Company in a
Purchase Business Combination," ("EITF 95-08") an estimate of the amount
expected to be paid to these employees will be reflected as stock-based and
other acquisition-related compensation expense ratably over the period which
these employees must remain employed to receive the contingent consideration.
Revisions to this estimate will be reflected on a prospective basis each
reporting period until paid. The accompanying statement of operations reflects a
charge of $1,157,000 of stock-based and other acquisition related compensation
for this contingent payment.

    The Company's acquisitions of Sigma6, Salzinger, Internet Outfitters and
Transform IT provided for contingent payments of up to $14,800,000 (unaudited)
in the form of cash and Company Common Stock to be made to the former owners of
these companies if these entities reach certain revenue and earnings targets for
periods ranging from 9 - 18 months from the date of their acquisition. The
amount of these contingent payments varies based on a sliding scale of revenues
and earnings, as defined in the acquisition agreements.

    If these goals are reached for Salzinger and Sigma6, the amount will be paid
only if the targets are reached and certain Sigma6 and Salzinger employees
remain employed by the Company. Accordingly, pursuant to EITF 95-08, an estimate
of the amount to be paid to these employees will be reflected as stock-based and
other acquisition-related compensation expense ratably over the period which the
employees must remain employed to receive the contingent consideration.
Revisions to this estimate will be reflected on a prospective basis each
reporting period until paid.

    If these goals are reached for Internet Outfitters and Transform IT,
approximately 23 and 33 percent, respectively, of the contingent payment will be
reflected as additional purchase price consideration if and when paid. The
remaining contingent amounts will be paid only if the targets are reached and
certain Internet Outfitters and Transform IT employees remain employed by the
Company. Accordingly, pursuant to EITF 95-08, an estimate of the amount to be
paid to these employees will be reflected as stock-based and other
acquisition-related compensation expense ratably over the period which the
employees must remain employed to receive the contingent consideration.
Revisions to this estimate will be reflected on a prospective basis each
reporting period until paid.

17. SEGMENT INFORMATION:

    The Company currently operates in two operating segments: professional
services and electronic commerce processing. For the year ended December 31,
1998 and the nine months ended September 30, 1999 (unaudited), the electronic
commerce processing segment was not significant to the overall financial
statements.

18. 1999 COMMON STOCK SPLIT

    The Company is currently contemplating an initial public offering. Prior to
the effectiveness of the initial public offering, the Company intends to enter
into an agreement to exchange the Class A Preferred Stock and the Class B
Preferred Stock and the related accrued dividends, into Company Common Stock
based on the per share price in the initial public offering. On June 15, 1999,
the Company declared a 2.85-for-one reverse stock split. All share and per-share
amounts, including stock

                                      F-27
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

option information, have been restated in these notes and the accompanying
consolidated financial statements to reflect this reverse stock split.

19. SUBSEQUENT EVENTS (UNAUDITED)

    On June 23, 1999, the Company completed its initial public offering of
securities and issued 6,000,000 shares of common stock at $12.00 per share,
which generated proceeds, net of issuance costs, of approximately $64,100,000.
The proceeds of the offering were used to repay outstanding borrowings under
various credit facilities and other outstanding debt, as well as fund general
corporate purposes, including working capital expenditures.

    In connection with the initial public offering, the Company exchanged 45,430
shares of Class A Preferred Stock and 11,576 shares of Class B Preferred Stock,
including accrued dividends, for 4,936,808 shares of common stock at an exchange
rate based on the initial public offering price of $12.00 per share. Of the
4,936,808 shares of common stock, 3,813,864 shares of common stock were issued
to GTCR.

    Certain promissory notes automatically converted at the time of the initial
public offering and certain promissory notes were converted at the option of the
promissory note holders. The notes that converted had a principal balance of
approximately $700,000 plus accrued interest and converted into 75,129 shares of
the Company's common stock at a conversion price at 80% of the $12.00 initial
public offering price. The Company recognized an interest charge of
approximately $1,100,000 related to the beneficial conversion features of
certain convertible notes which allowed the holders to convert at a discount
from the initial public offering price of the common stock.

    During May 1999 and August 1999, the Company converted promissory notes of
approximately $1,500,000 plus accrued interest to former owners of an acquired
business into 185,429 shares of the Company's common stock at a conversion price
of $8.55 per share. During October 1999, an additional $500,000 of promissory
notes to former owners of an acquired business plus accrued interest were
converted based on a conversion price of $8.55 per share into 60,082 shares of
common stock. In conjunction with the modification of the credit facilities on
June 23, 1999, a charge of approximately $600,000 was recorded to write-off
financing costs related to the facilities.

    The Company recognized a compensation charge of approximately $2,500,000,
recorded as stock-based and acquisition-related compensation expense, upon
completion of the initial public offering in connection with the termination of
the Company's right to repurchase the Reserved Shares. The amount of the
compensation charge was calculated as the difference between the initial public
offering price of $12.00 per share and $0.3007, multiplied by the number of
Reserved Shares retained by the executive

    During June 1999, in connection with the initial public offering, the
Company terminated the Guaranteed Loans and amended the Unguaranteed Loans
decreasing available borrowings from $26,000,000 to $20,000,000 (the "Amended
1999 Credit Facility"). The Amended 1999 Credit Facility matures on August 24,
2001. In conjunction with the modification of the credit facilities, a charge of
$600,000 was recorded to write-off financing costs related to the facilities.

    On September 30, 1999, the stockholders of the Company approved the adoption
of the 1998 Employee Stock Purchase Plan ("ESPP"). The purpose of the Plan is to
enhance stockholder value and promote the attainment of significant business
objectives of the Company by allowing employees to purchase the Company's Common
Stock at a discount of 15%, thereby giving employees an interest in common with
that of the stockholders. The number of shares available for purchase under the
ESPP is 250,000. The purchase price of shares under the plan is the lower of 85%
of the share price on the first

                                      F-28
<PAGE>
                                  APPNET, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1998 AND SEPTEMBER 30, 1999

day of the plan quarter or the share price on the plan quarter close. All
employees are eligible to participate except (i) those employed for less than
20 hours per week; (ii) employees who, as a result of participation in the ESPP,
would own stock or hold options to purchase stock possessing five percent or
more of the total combined voting power or value of all classes of stock of the
Company; and (iii) if such right would permit the employee to purchase stock
under the Plan and any other stock purchase plans of the Company and its
subsidiaries in effect from time to time with a fair market value in excess of
$25,000 (determined as of the first day of each plan quarter) for each calendar
year. Participants can contribute from 1% to 10% of their annual salary. The
plan became effective on October 1, 1999.

    In connection with the acquisition of NMP, contingent purchase payments
based upon the achievement of certain operating targets during the twelve months
ended October 1, 1999 are payable in January 2000. Based on the preliminary
results of NMP's operating performance during the period of measurement, 100% of
the contingent consideration, or $14,000,000, is payable to the former
shareholders, of which $8,400,000 is payable in cash and $5,600,000 or 654,971
shares of common stock is payable in stock based on $8.55 per share, the agreed
to price for our common stock. The fair value of the stock portion totalled
approximately $17,200,000 as of October 1, 1999.

                                      F-29
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To Software Services Corporation:

    We have audited the accompanying balance sheets of Software Services
Corporation (a Michigan corporation) as of December 31, 1996 and 1997, and
August 24, 1998, and the related statements of operations, stockholders' equity
and cash flows for the years ended December 31, 1996 and 1997, and for the
period from January 1, 1998 to August 24, 1998. These financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audits to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Software Services
Corporation as of December 31, 1996 and 1997, and August 24, 1998, and the
results of its operations and its cash flows for the years ended December 31,
1996 and 1997, and for the period from January 1, 1998 to August 24, 1998, in
conformity with generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Ann Arbor, Michigan
February 5, 1999

                                      F-30
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                                 BALANCE SHEETS

             AS OF DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

<TABLE>
<CAPTION>
                                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                                               1996           1997          1998
                                                           ------------   ------------   ----------
<S>                                                        <C>            <C>            <C>
ASSETS
Current assets:
  Cash and cash equivalents..............................   $   70,000     $  252,000    $   44,000
  Accounts receivable, net of allowance for doubtful
    accounts of $29,000, $25,000 and $255,000,
    respectively.........................................    1,597,000      2,167,000     2,935,000
  Other current assets...................................      225,000        150,000     1,020,000
                                                            ----------     ----------    ----------
    Total current assets.................................    1,892,000      2,569,000     3,999,000
Property and equipment, net..............................      617,000        541,000       475,000
Intangible assets, net...................................      450,000        311,000       216,000
Other assets.............................................      196,000        246,000       283,000
                                                            ----------     ----------    ----------
    Total assets.........................................   $3,155,000     $3,667,000    $4,973,000
                                                            ==========     ==========    ==========
LIABILITIES AND STOCKHOLDERS' EQUITY:
Current liabilities:
  Accounts payable.......................................   $   56,000     $   57,000    $  725,000
  Accrued liabilities....................................      649,000      1,058,000       761,000
  Current portion of long-term debt......................      672,000        334,000            --
                                                            ----------     ----------    ----------
    Total current liabilities............................    1,377,000      1,449,000     1,486,000
Long-term debt, net of current portion...................      320,000        332,000            --
                                                            ----------     ----------    ----------
    Total liabilities....................................    1,697,000      1,781,000     1,486,000
                                                            ----------     ----------    ----------
Commitments and contingencies (Note 9)
Stockholders' equity:
  Common stock, no par value, 10,000,000 shares
    authorized, 5,700,000, 5,697,000 and 5,667,000 shares
    issued and outstanding, respectively.................        1,000         61,000        31,000
  Additional paid-in capital (Note 1)....................           --             --     3,344,000
  Retained earnings......................................    1,457,000      1,825,000       112,000
                                                            ----------     ----------    ----------
    Total stockholders' equity...........................    1,458,000      1,886,000     3,487,000
                                                            ----------     ----------    ----------
    Total liabilities and stockholders' equity...........   $3,155,000     $3,667,000    $4,973,000
                                                            ==========     ==========    ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-31
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                            STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                         FOR THE YEARS ENDED             FOR THE
                                                             DECEMBER 31,              PERIOD FROM
                                                     ----------------------------    JANUARY 1, 1998
                                                        1996             1997       TO AUGUST 24, 1998
                                                     -----------      -----------   ------------------
<S>                                                  <C>              <C>           <C>
Revenues...........................................  $11,789,000      $13,298,000      $10,788,000
Costs of revenues..................................    7,680,000        8,416,000        7,392,000
                                                     -----------      -----------      -----------
    Gross profit...................................    4,109,000        4,882,000        3,396,000
Operating expenses:
  Selling and marketing............................    1,082,000          997,000          567,000
  General and administrative.......................    2,615,000        3,050,000        1,856,000
  Stock-based and acquisition-related
    compensation...................................           --               --        2,654,000
  Depreciation and amortization....................      300,000          341,000          230,000
                                                     -----------      -----------      -----------
    Total operating expenses.......................    3,997,000        4,388,000        5,307,000
                                                     -----------      -----------      -----------
Income (loss) from operations......................      112,000          494,000       (1,911,000)
Gain on sale of investment in affiliate............           --          358,000               --
Interest expense, net..............................       52,000           35,000           28,000
Other expense, net.................................           --            9,000          372,000
                                                     -----------      -----------      -----------
Income (loss) before income taxes..................       60,000          808,000       (2,311,000)
Provision (benefit) for income taxes...............      113,000          377,000         (598,000)
                                                     -----------      -----------      -----------
Net (loss) income..................................  $   (53,000)     $   431,000      $(1,713,000)
                                                     ===========      ===========      ===========
Basic and diluted net (loss) income per share......  $      (.01)     $       .08      $      (.30)
                                                     ===========      ===========      ===========
Weighted average common shares outstanding.........    5,727,000        5,705,000        5,697,000
                                                     ===========      ===========      ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-32
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                       STATEMENTS OF STOCKHOLDERS' EQUITY

                FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997,
           AND FOR THE PERIOD FROM JANUARY 1, 1998 TO AUGUST 24, 1998

<TABLE>
<CAPTION>
                                          COMMON STOCK       ADDITIONAL                     TOTAL
                                      --------------------    PAID-IN      RETAINED     STOCKHOLDERS'
                                       SHARES      AMOUNT     CAPITAL      EARNINGS        EQUITY
                                      ---------   --------   ----------   -----------   -------------
<S>                                   <C>         <C>        <C>          <C>           <C>
Balance, December 31, 1995..........  6,000,000   $  1,000   $       --   $ 1,810,000    $1,811,000
  Repurchase of common stock
    shares..........................   (300,000)        --           --      (300,000)     (300,000)
  Net loss..........................         --         --           --       (53,000)      (53,000)
                                      ---------   --------   ----------   -----------    ----------
Balance, December 31, 1996..........  5,700,000      1,000           --     1,457,000     1,458,000
  Repurchase of common stock
    shares..........................    (63,000)        --           --       (63,000)      (63,000)
  Issuance of common stock as
    compensation....................     60,000     60,000           --            --        60,000
  Net income........................         --         --           --       431,000       431,000
                                      ---------   --------   ----------   -----------    ----------
Balance, December 31, 1997..........  5,697,000     61,000           --     1,825,000     1,886,000
  Repurchase of common stock
    shares..........................    (30,000)   (30,000)          --            --       (30,000)
  Capital contribution..............         --         --    3,344,000            --     3,344,000
  Net loss..........................         --         --           --    (1,713,000)   (1,713,000)
                                      ---------   --------   ----------   -----------    ----------
Balance, August 24, 1998............  5,667,000   $ 31,000   $3,344,000   $   112,000    $3,487,000
                                      =========   ========   ==========   ===========    ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-33
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                                        FOR THE
                                                                                      PERIOD FROM
                                                              FOR THE YEARS ENDED     JANUARY 1,
                                                                  DECEMBER 31,          1998 TO
                                                              --------------------    AUGUST 24,
                                                                1996        1997         1998
                                                              ---------   --------   -------------
<S>                                                           <C>         <C>        <C>
Cash flows from operating activities:
  Net (loss) income.........................................  $ (53,000)  $431,000    $(1,713,000)
  Adjustments to reconcile net (loss) income to net cash
    provided by (used in) operating activities:
      Depreciation and amortization.........................    300,000    341,000        230,000
      Deferred compensation agreements......................         --    616,000             --
      Gain on sale of investment in affiliate...............         --   (358,000)            --
      Deferred income taxes.................................    (34,000)  (216,000)      (935,000)
      Change in assets and liabilities:
        Accounts receivable.................................     97,000   (570,000)      (768,000)
        Other current assets................................    (74,000)    89,000         31,000
        Other assets........................................         --     (2,000)        (3,000)
        Accounts payable....................................   (109,000)     1,000        668,000
        Accrued liabilities.................................    (11,000)   409,000       (297,000)
                                                              ---------   --------    -----------
          Net cash provided by (used in) operating
            activities......................................    116,000    741,000     (2,787,000)
                                                              ---------   --------    -----------
Cash flows from investing activities:
  Purchase of property and equipment, net...................   (221,000)  (121,000)       (69,000)
  Additional investment in affiliate........................         --    (75,000)            --
  Proceeds from disposal of investment in affiliate.........         --    490,000             --
                                                              ---------   --------    -----------
          Net cash (used in) provided by investing
            activities......................................   (221,000)   294,000        (69,000)
                                                              ---------   --------    -----------
Cash flows from financing activities:
  Repayments of long-term debt..............................   (235,000)  (236,000)      (263,000)
  Net borrowings (repayments) under notes payable...........    400,000   (400,000)            --
  Repurchase of common stock................................   (300,000)   (63,000)       (30,000)
  Capital contribution......................................         --         --      3,344,000
  Payments under deferred compensation agreement............         --   (154,000)      (403,000)
                                                              ---------   --------    -----------
          Net cash (used in) provided by financing
            activities......................................   (135,000)  (853,000)     2,648,000
                                                              ---------   --------    -----------
Net (decrease) increase in cash and cash equivalents........   (240,000)   182,000       (208,000)
Cash and cash equivalents, beginning of period..............    310,000     70,000        252,000
                                                              ---------   --------    -----------
Cash and cash equivalents, end of period....................  $  70,000   $252,000    $    44,000
                                                              =========   ========    ===========
Supplementary information:
  Cash paid for interest....................................  $  59,000   $ 56,000    $    33,000
                                                              =========   ========    ===========
  Cash paid for income taxes................................  $ 182,000   $135,000    $   653,000
                                                              =========   ========    ===========
  Assets financed under capital lease obligations...........  $ 252,000   $     --    $        --
                                                              =========   ========    ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-34
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

1.  BUSINESS DESCRIPTION:

    Software Services Corporation (the Company) engages in application
development, computer software and networking projects, and provides both
full-time and temporary personnel to companies in the computer industry. The
Company is headquartered in Ann Arbor, Michigan.

    On August 25, 1998, all of the outstanding Common Stock of the Company was
acquired by SSC Acquisition Sub. No. 1, Inc. (a Michigan Corporation and a
wholly owned subsidiary of AppNet Systems, Inc.; "AppNet"). In contemplation of
the acquisition, AppNet advanced the Company $3,344,000 to fund the repayment of
certain debt, the repurchase of certain shares, pay the Company's obligation
under a deferred compensation agreement and to fund certain acquisition expenses
paid by the Company. This amount has been included as paid in capital in the
accompanying financial statements.

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

INVESTMENT IN AFFILIATE

    Investment in affiliate represented the Company's 10 percent interest in
Workwell Health & Safety Systems, Inc. ("Workwell"). In addition to the
investment in Workwell, the Company held an option to purchase an additional
2,353 to 2,667 shares of Workwell for $75,000. In January 1997, the Company
exercised this option and signed an agreement to sell its total investment in
Workwell for $490,000. In connection with the sale, certain employment
agreements and options were canceled and the owners of Workwell released the
Company from further payments owed under the non-competition agreements. Except
for the release of payments, all the terms and conditions of the non-competition
agreements remain in full force and effect. During 1997, the Company recognized
a $358,000 gain on this transaction; $93,000 of which represents the release of
payments by the Company under the non-competition agreements.

CASH AND CASH EQUIVALENTS

    The Company considers all investments purchased with a maturity of three
months or less to be cash equivalents.

                                      F-35
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                       <C>
Computers and equipment.................................  three to five years
Furniture and fixtures..................................  five years
</TABLE>

    Purchased software and third-party costs incurred to develop software for
internal use are capitalized and amortized principally over three years.

    In accordance with SFAS No. 121, "Accounting for the Impairment of
Long-Lived Assets and for Long-Lived Assets to Be Disposed Of," the Company
reviews its recorded long-lived assets for impairment whenever events or changes
in circumstances indicate that the carrying amount of an asset may not be
recoverable.

GOODWILL

    Goodwill represents the excess of the purchase price over the fair value of
net assets acquired and is amortized on a straight-line basis over 5 years.

NON-COMPETITION AGREEMENTS

    Non-compete agreements were entered into with former owners of various
acquisitions of the Company and are being amortized on a straight-line basis
over the lives of the related agreements, generally four to five years.

INTELLECTUAL PROPERTY

    Intellectual property represents acquired and internally developed patents.
The Company capitalizes the direct external costs of acquiring the related
patents. Intellectual property is amortized on a straight-line basis over the
lives of the related assets, generally five years.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable, short-term borrowings,
long-term debt and capital lease obligations. In management's opinion, the
carrying amounts of these financial instruments approximated their fair values
at December 31, 1996 and 1997, and August 24, 1998.

SELF INSURANCE

    The Company partially self insures its dental, vision and short-term
disability programs. There are stop-loss provisions on each of these programs.
Paid claims were $54,000 and $64,000 in 1996 and 1997, respectively, and $47,000
for the period from January 1, 1998 through August 24, 1998.

                                      F-36
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

STOCK-BASED COMPENSATION

    The Company accounts for stock-based compensation arrangements using the
intrinsic value method in accordance with provisions of Accounting Principles
Board ("APB") Opinion No. 25, "Accounting for Stock Issued to Employees," and
complies with the disclosure provisions of SFAS No. 123, "Accounting for
Stock-Based Compensation." Under APB Opinion No. 25, compensation cost is
recognized based on the difference, if any, on the date of grant between the
fair value of the Company's stock and the amount an employee must pay to acquire
the stock.

REVENUE RECOGNITION

    Revenues from time and material contracts are recognized based on fixed
hourly rates for direct labor hours expended.

    Costs of revenues include all direct, material and labor costs related to
contract performance and does not include any related depreciation expense.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                          REVENUES                               ACCOUNTS RECEIVABLE
                         ------------------------------------------   ------------------------------------------
                            FOR THE YEAR
                                ENDED
                            DECEMBER 31,       FOR THE PERIOD ENDED     AS OF DECEMBER 31,
                         -------------------        AUGUST 24,        -----------------------   AS OF AUGUST 24,
                           1996       1997             1998              1996         1997            1998
                         --------   --------   --------------------   ----------   ----------   ----------------
<S>                      <C>        <C>        <C>                    <C>          <C>          <C>
Customer A.............     62%        46%             33%               49%           37%             23%
Customer B.............    *          *                11%              *              11%             14%
</TABLE>

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

*   Represents less than 10 percent of total.

INCOME TAXES

    The Company accounts for income taxes under Statement of Financial
Accounting Standards ("SFAS") No. 109, "Accounting for Income Taxes". Under the
provisions of SFAS No. 109, deferred income taxes reflect the impact of
temporary differences between the amount of assets and liabilities recognized
for financial reporting purposes and such amounts recognized for tax reporting
purposes. Deferred tax assets may also be recognized to reflect the expected
future benefit from the utilization of net operating loss and tax credit
carryforwards. Deferred tax assets and liabilities are measured by applying
current enacted tax laws.

EARNINGS PER SHARE

    SFAS No. 128, "Earnings Per Share," requires the presentation of basic and
diluted earnings per share. Basic net income (loss) per share is computed by
dividing income (loss) available to common stockholders by the weighted average
number of common shares outstanding for the period. The diluted net income
(loss) per share data is computed using the weighted average number of common
shares outstanding plus the dilutive effect of common stock equivalents, unless
the equivalents are antidilutive.

                                      F-37
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

RECENT ACCOUNTING PRONOUNCEMENTS

    In March 1998, the American Institute of Certified Public Accountants issued
Statement of Position ("SOP") 98-1, "Accounting for the Cost of Computer
Software Developed or Obtained for Internal Use." SOP 98-1 is effective for
financial statement years beginning after December 15, 1998. SOP 98-1 provides
guidance on accounting for computer software developed or obtained for internal
use, including the requirements to capitalize specified costs and the
amortization of such costs. The Company does not expect the adoption of this
standard to have a material effect on the Company's capitalization policy.

RECLASSIFICATIONS

    Certain amounts from the prior year financial statements have been
reclassified to conform with the current presentation.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                               1996           1997          1998
                                           ------------   ------------   ----------
<S>                                        <C>            <C>            <C>
Accounts receivable......................   $1,562,000     $2,014,000    $2,630,000
Unbilled accounts receivables............       64,000        178,000       560,000
Allowance for doubtful accounts..........      (29,000)       (25,000)     (255,000)
                                            ----------     ----------    ----------
    Accounts receivable, net.............   $1,597,000     $2,167,000    $2,935,000
                                            ==========     ==========    ==========
</TABLE>

4.  OTHER CURRENT ASSETS:

    Other current assets consist of the following:

<TABLE>
<CAPTION>
                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                               1996           1997          1998
                                           ------------   ------------   ----------
<S>                                        <C>            <C>            <C>
Prepaid expenses.........................   $  174,000     $   91,000    $   60,000
Other....................................        6,000        --             --
Deferred income tax asset................       45,000         59,000       960,000
                                            ----------     ----------    ----------
    Other current assets.................   $  225,000     $  150,000    $1,020,000
                                            ==========     ==========    ==========
</TABLE>

                                      F-38
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

5.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                               1996           1997          1998
                                           ------------   ------------   ----------
<S>                                        <C>            <C>            <C>
Computer equipment and software..........   $  874,000     $  994,000    $1,054,000
Furniture and fixtures...................      178,000        179,000       187,000
Leasehold improvements...................       53,000         53,000        53,000
                                            ----------     ----------    ----------
                                             1,105,000      1,226,000     1,294,000
Accumulated depreciation and
  amortization...........................     (488,000)      (685,000)     (819,000)
                                            ----------     ----------    ----------
    Net property and equipment...........   $  617,000     $  541,000    $  475,000
                                            ==========     ==========    ==========
</TABLE>

6.  INTANGIBLE ASSETS:

    Intangible assets consist of the following:

<TABLE>
<CAPTION>
                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                               1996           1997          1998
                                           ------------   ------------   ----------
<S>                                        <C>            <C>            <C>
Goodwill.................................    $ 120,000     $  120,000    $  120,000
Non-competition agreements...............      380,000        380,000       380,000
Intellectual property, net...............      150,000        155,000       155,000
Acquired contracts.......................      158,000        --             --
                                             ---------     ----------    ----------
                                               808,000        655,000       655,000
Accumulated amortization.................     (358,000)      (344,000)     (439,000)
                                             ---------     ----------    ----------
    Intangible assets, net...............    $ 450,000     $  311,000    $  216,000
                                             =========     ==========    ==========
</TABLE>

7.  OTHER NON-CURRENT ASSETS:

    Other non-current assets consist of the following:

<TABLE>
<CAPTION>
                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                               1996           1997          1998
                                           ------------   ------------   ----------
<S>                                        <C>            <C>            <C>
Other....................................    $ 12,000      $   10,000    $   13,000
Deferred income tax benefit..............      34,000         236,000       270,000
Investment in affiliate..................     150,000         --             --
                                             --------      ----------    ----------
    Other non-current assets.............    $196,000      $  246,000    $  283,000
                                             ========      ==========    ==========
</TABLE>

                                      F-39
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

8.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                           DECEMBER 31   DECEMBER 31,   AUGUST 24,
                                              1996           1997          1998
                                           -----------   ------------   ----------
<S>                                        <C>           <C>            <C>
Accrued compensation and benefits........   $477,000      $  422,000    $  440,000
Accrued commissions......................     89,000         111,000        79,000
Income taxes payable.....................     33,000         477,000       161,000
Accrued professional fees................     17,000          27,000        22,000
Other accrued liabilities................     33,000          21,000        59,000
                                            --------      ----------    ----------
    Accrued liabilities..................   $649,000      $1,058,000    $  761,000
                                            ========      ==========    ==========
</TABLE>

9.  COMMITMENTS AND CONTINGENCIES:

    The Company currently leases its facility under an operating lease. Rent
expense for the years ended December 31, 1996 and 1997, and for the period from
January 1, 1998 to August 24, 1998, totaled approximately $180,000, $243,000 and
$165,000, respectively. Future minimum lease payments at August 24, 1998, under
these agreements are as follows:

<TABLE>
<S>                                                           <C>
Period ended December 31, 1998..............................  $   86,000
1999........................................................     275,000
2000........................................................     293,000
2001........................................................     301,000
2002........................................................     309,000
2003........................................................     155,000
                                                              ----------
    Total...................................................  $1,419,000
                                                              ==========
</TABLE>

                                      F-40
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

10. DEBT:

    Debt consists of the following:

<TABLE>
<CAPTION>
                                                            DECEMBER 31   DECEMBER 31,   AUGUST 24,
                                                               1996           1997          1998
                                                            -----------   ------------   ----------
<S>                                                         <C>           <C>            <C>
Deferred compensation (see Note 17), repaid during the
  period ended August 24, 1998 (see below)................   $     --       $403,000      $     --
Capital lease obligation, repaid during the period ended
  August 24, 1998 (see below).............................    141,000        116,000            --
Promissory notes, repaid during the period ended August
  24, 1998 (see below)....................................    285,000         98,000            --
Capital lease obligation, repaid during the period ended
  August 24, 1998 (see below).............................     73,000         49,000            --
Noncompete agreements, repaid during the year ended
  December 31, 1997.......................................     93,000             --            --
Note payable, repaid during the year ended December 31,
  1997....................................................    400,000             --            --
                                                             --------       --------      --------
                                                              992,000        666,000            --
Less--Current portion.....................................    672,000        334,000            --
                                                             --------       --------      --------
                                                             $320,000       $332,000      $     --
                                                             ========       ========      ========
</TABLE>

    As a condition of the sale of the Company to AppNet, all of the Company's
outstanding debt was repaid prior to August 24, 1998. In contemplation of the
repayment, AppNet advanced funds to the Company to repay the debt. The funds
received by AppNet have been included in additional paid-in capital in the
accompanying financial statements.

11. STOCKHOLDERS' EQUITY:

STOCK SPLIT

    During 1997, the Company declared a stock split of six-to-one for each
holder of common stock. All share information included in the accompanying
financial statements has been restated to retroactively reflect the stock split.

STOCK OPTION PLAN

    During 1995, the Company established a stock option plan (the "Plan") to
encourage ownership by selected employees of the Company and provide an
additional incentive to these employees to promote the success of the Company.
Under the Plan, options to purchase the Company's common stock may be granted at
the discretion of the Board of Directors. The maximum number of shares that may
be granted is 1,500,000. The Plan may be terminated at any time at the
discretion of the Board of Directors. According to the Plan, the options will be
granted at a price equal to 100 percent of the fair market value of the common
stock as determined by the Board of Directors. All options will expire ten years
after date of grant. During the years ended December 31, 1996 and 1997 and the
for the period from January 1, 1998 to August 24, 1998, the Company granted
108,000, 170,000 and 20,000 options, respectively, at an option price of $1.00,
all of which vest over four years. During the years ended December 31, 1996,
1997 and for the period from January 1, 1998 to August 24, 1998, 372,000, 90,000
and 54,000 options were cancelled due to termination of employment,
respectively. As of December 31,

                                      F-41
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

1996 and 1997, and as of August 24, 1998, 180,000, 260,000 and zero options were
outstanding, respectively. In contemplation of the sale of the Company to
AppNet, certain option vesting was accelerated and all then vested options,
totaling 89,500, were redeemed and the remaining options of the Company were
converted to equivalent options of AppNet for $3.43 per share. The amount paid
to the stockholders, net of the option exercise price, has been recognized as
expense and included in stock-based and acquisition-related compensation in the
accompanying statement of operations. In contemplation of the redemption of the
shares, AppNet advanced approximately $217,000 to the Company to fund the
redemption. The funds advanced to the Company have been recorded as additional
paid in capital in the accompanying financial statements.

    Utilizing the intrinsic value method of accounting for the value of stock
options issued during the years ended December 31, 1996 and 1997 and for the
period from January 1, 1998 to August 24, 1998, no compensation cost was
recorded in the accompanying statements of income. Had compensation cost been
determined based on the fair value at the date of grant for awards for the years
ended December 31, 1996 and 1997 and for the period from January 1, 1998 to
August 24, 1998, consistent with the provisions of SFAS No. 123, net income
(loss) would not have significantly differed from the reported amounts.

12. EARNINGS PER SHARE:

    The impact of stock options are excluded from diluted earnings per share due
to their antidilutive effect and are 180,000, 260,000, and zero for the years
ended December 31, 1996 and 1997 and for the period from January 1, 1998 to
August 24, 1998.

13. INCOME TAXES:

    The components of the provision (benefit) for income taxes as recorded under
SFAS No. 109 are as follows:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                              --------------------   AUGUST 24,
                                                1996       1997         1998
                                              --------   ---------   ----------
<S>                                           <C>        <C>         <C>
Federal income taxes:
  Currently payable.........................  $ 12,000   $ 446,000   $ 213,000
  Deferred income taxes.....................   (34,000)   (216,000)   (935,000)
State taxes.................................   135,000     147,000     124,000
                                              --------   ---------   ---------
    Provisions (benefit) for income taxes...  $113,000   $ 377,000   $(598,000)
                                              ========   =========   =========
</TABLE>

    The tax provision (benefit) differed from the amounts computed at the
statutory rate as follows:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                               -------------------   AUGUST 24,
                                                 1996       1997        1998
                                               --------   --------   ----------
<S>                                            <C>        <C>        <C>
Federal income taxes at the U.S. statutory
  rate.......................................  $(26,000)  $275,000   $(786,000)
State taxes, net of federal benefit..........   135,000     97,000      82,000
Acquisition expenses not deductible for tax
  purposes...................................        --         --     115,000
Other........................................     4,000      5,000      (9,000)
                                               --------   --------   ---------
    Total....................................  $113,000   $377,000   $(598,000)
                                               ========   ========   =========
</TABLE>

                                      F-42
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

    The components of the net deferred tax asset as of December 31, 1996 and
1997, and August 24, 1998, are as follows:

<TABLE>
<CAPTION>
                                           DECEMBER 31,   DECEMBER 31,   AUGUST 24,
                                               1996           1997          1998
                                           ------------   ------------   ----------
<S>                                        <C>            <C>            <C>
Current deferred income tax asset:
  Deferred compensation..................    $     --       $     --     $  829,000
  Accrued expenses.......................      36,000         50,000         32,000
  Accounts receivable....................       9,000          9,000         99,000
                                             --------       --------     ----------
                                               45,000         59,000        960,000
                                             --------       --------     ----------
Long-term deferred income tax asset:
  Deferred compensation..................          --        137,000        137,000
  Property and equipment.................     (25,000)         7,000         19,000
  Other assets...........................      59,000         92,000        114,000
                                             --------       --------     ----------
                                               34,000        236,000        270,000
                                             --------       --------     ----------
    Net deferred tax asset...............    $ 79,000       $295,000     $1,230,000
                                             ========       ========     ==========
</TABLE>

14. RELATED-PARTY TRANSACTIONS:

    The Company purchased consulting services from an affiliate for
approximately $90,000 in 1996 and 1997 and $58,000 in the period from
January 1, 1998 through August 24, 1998.

15. RETIREMENT PLAN:

    The Company maintains a profit sharing and retirement plan under the
provisions of section 401(k) of the Internal Revenue Code. The Plan provides for
contribution by employees and a discretionary contribution by the Company. The
Plan is for the benefit of all employees. Employees are eligible to participate
if they are at least 18 years of age and have met certain minimum service
requirements. Employee contributions are fully vested and subject to statutory
limits. The Company's contribution is discretionary and is determined by its
Board of Directors. Company contributions vest after three years of service.
There were no company contributions for the year ended December 31, 1996 and
1997, and for the period from January 1, 1998 to August 24, 1998.

16. TERMINATION AGREEMENT:

    During 1997, the Company entered into an agreement to terminate an
employment agreement with a key employee of the Company (the "Termination
Agreement"). Under the terms of the Termination Agreement, the Company was to
pay the former employee a total of $662,000 as satisfaction of any claims the
former employee may have had under the employment agreement. The amount was
payable in the form of 10,000 shares of the Company's common stock valued at
$60,000 and $602,000 in the form of a note. The Note was payable in quarterly
installments of $50,000 through December 1999, with a final payment of $30,000
in March 2000. The Company recorded the net present value of this note,
discounted at 5.5 percent, in the accompanying financial statements as deferred
compensation, which is included in long-term debt. This note was fully repaid
during the period from January 1, 1998 through August 24, 1998.

                                      F-43
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

17. DEFERRED COMPENSATION AGREEMENT:

    The Company has entered into a deferred compensation agreement (the
"Agreement") with the president of the Company. Under the terms of the
Agreement, the president is to receive certain compensation should the Company
be sold or merged, as defined in the Agreement. As a result of the sale of the
Company to AppNet, the Company recognized $2,437,000 in compensation expense
during the period from January 1, 1998 through August 24, 1998, which has been
included in general and administrative expense in the accompanying statement of
operations. In contemplation of this compensation being paid, AppNet advanced
funds to the Company to pay its obligation under the Agreement. The funds
advanced from AppNet have been included as paid in capital in the accompanying
financial statements.

18. SEGMENT DISCLOSURE:

    The Company has adopted SFAS No. 131, "Disclosures about Segments of an
Enterprise and Related Information." SFAS No. 131 establishes standards for
reporting information about operating segments in annual financial statements
and requires selected information about operating segments in interim financial
reports issued to stockholders. It also establishes standards for related
disclosures about products and services, geographic areas and major customers.

    The Company operated in two operating segments: technical consulting and
managed services. The technical consulting group primarily provides information
technology consulting to companies on a per diem basis. The managed services
group provides information technology solutions to its customers through the
design and implementation of information systems technology on a project or
solutions basis. Substantially all of the Company's revenues are generated and
assets are located in the Midwestern United States.

    The accounting policies of the segments are the same as those described in
the summary of significant accounting policies (Note 2) except that certain
deferred compensation, merger related costs, interest expense and income taxes
have not been allocated to the business segments. The Company evaluates the
performance of its operating segments based primarily upon revenues and
operating income. Assets are not allocated to the operating segments.

    As summary of the Company's operating segments for the years ended
December 31, 1996 and 1997 for the period from January 1, 1998 to August 24,
1998, is set forth below.

                                      F-44
<PAGE>
                         SOFTWARE SERVICES CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND AUGUST 24, 1998

    The following table presents revenues and other financial information by
operating segment:

<TABLE>
<CAPTION>
                                                          FOR THE YEARS ENDED      FOR THE PERIOD
                                                             DECEMBER 31,               ENDED
                                                       -------------------------   ---------------
                                                          1996          1997       AUGUST 24, 1998
                                                       -----------   -----------   ---------------
<S>                                                    <C>           <C>           <C>
Revenues to external customers:
    Technical consulting.............................  $ 8,520,000   $10,205,000      $ 8,489,000
    Managed services.................................    3,269,000     3,093,000        2,299,000
                                                       -----------   -----------      -----------
      Total revenue to external customers............   11,789,000    13,298,000       10,788,000
                                                       -----------   -----------      -----------
Operating profit (loss):
    Technical consulting.............................      531,000     1,055,000          827,000
    Managed services.................................     (395,000)       56,000          (84,000)
                                                       -----------   -----------      -----------
Segment operating profit.............................      136,000     1,111,000          743,000
Reconciliation to Company operating profit due to
  costs not allocated to segments:
    Deferred compensation............................      (24,000)     (617,000)              --
    Costs associated with acquisition................           --            --       (2,654,000)
                                                       -----------   -----------      -----------
    Total operating profit...........................  $   112,000   $   494,000      $(1,911,000)
                                                       ===========   ===========      ===========
</TABLE>

                                      F-45
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To Arbor Intelligent Systems, Inc.:

    We have audited the accompanying balance sheets of Arbor Intelligent
Systems, Inc. (a Michigan corporation), as of December 31, 1997, and March 11,
1998, and the related statements of operations, stockholders' deficit, and cash
flows for the year ended December 31, 1997, and for the period from January 1,
1998 to March 11, 1998. These financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Arbor Intelligent
Systems, Inc. as of December 31, 1997, and March 11, 1998, and the results of
its operations and its cash flows for the year ended December 31, 1997, and for
the period from January 1, 1998 to March 11, 1998, in conformity with generally
accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
February 19, 1999

                                      F-46
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                                 BALANCE SHEETS

                   AS OF DECEMBER 31, 1997 AND MARCH 11, 1998

<TABLE>
<CAPTION>
                                                              DECEMBER 31,    MARCH 11,
                                                                  1997          1998
                                                              ------------   -----------
<S>                                                           <C>            <C>
ASSETS
Current assets:
  Cash and cash equivalents.................................   $   12,000    $   145,000
  Accounts receivable, net of allowance for doubtful
    accounts of $15,000 and $20,000, respectively...........      464,000        449,000
  Other current assets......................................       14,000         27,000
                                                               ----------    -----------
    Total current assets....................................      490,000        621,000
Property and equipment, net.................................       92,000         84,000
Other assets, net...........................................      198,000        146,000
                                                               ----------    -----------
    Total assets............................................   $  780,000    $   851,000
                                                               ==========    ===========
LIABILITIES AND STOCKHOLDERS' DEFICIT
Current liabilities:
  Short-term borrowings.....................................   $  300,000    $   300,000
  Accounts payable..........................................      210,000        292,000
  Accrued liabilities.......................................      497,000        787,000
  Current portion of long-term debt.........................      685,000        678,000
  Current portion of capital lease obligations..............       12,000         12,000
                                                               ----------    -----------
    Total current liabilities...............................    1,704,000      2,069,000
Capital lease obligations, net of current portion...........       11,000          9,000
                                                               ----------    -----------
    Total liabilities.......................................    1,715,000      2,078,000
                                                               ----------    -----------
Commitments and contingencies (Note 7)
Stockholders' deficit:
  Common stock, no par value; 50,000 shares authorized;
    10,000 and 14,640 shares issued and outstanding,
    respectively............................................        1,000          1,000
  Additional paid-in capital................................        5,000        470,000
  Accumulated deficit.......................................     (941,000)    (1,698,000)
                                                               ----------    -----------
    Total stockholders' deficit.............................     (935,000)    (1,227,000)
                                                               ----------    -----------
    Total liabilities and stockholders' deficit.............   $  780,000    $   851,000
                                                               ==========    ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-47
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                            STATEMENTS OF OPERATIONS

                     FOR THE YEAR ENDED DECEMBER 31, 1997,
           AND FOR THE PERIOD FROM JANUARY 1, 1998 TO MARCH 11, 1998

<TABLE>
<CAPTION>
                                                                             FOR THE PERIOD
                                                              FOR THE YEAR   FROM JANUARY 1,
                                                                 ENDED           1998 TO
                                                              DECEMBER 31,      MARCH 11,
                                                                  1997            1998
                                                              ------------   ---------------
<S>                                                           <C>            <C>
Revenues....................................................   $3,106,000        $ 688,000
Cost of revenues............................................    2,149,000          471,000
                                                               ----------        ---------
    Gross profit............................................      957,000          217,000
                                                               ----------        ---------
Operating expenses:
  Selling and marketing.....................................      105,000           14,000
  General and administrative................................      843,000          226,000
  Stock-based compensation..................................           --          465,000
  Depreciation and amortization.............................      186,000           29,000
                                                               ----------        ---------
    Total operating expenses................................    1,134,000          734,000
                                                               ----------        ---------
Loss from operations........................................     (177,000)        (517,000)
Interest expense, net.......................................      187,000           29,000
Other expense, net..........................................       41,000          211,000
                                                               ----------        ---------
Net loss....................................................   $ (405,000)       $(757,000)
                                                               ==========        =========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-48
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.
                      STATEMENTS OF STOCKHOLDERS' DEFICIT
                     FOR THE YEAR ENDED DECEMBER 31, 1997,
           AND FOR THE PERIOD FROM JANUARY 1, 1998 TO MARCH 11, 1998

<TABLE>
<CAPTION>
                                               COMMON STOCK       ADDITIONAL                     TOTAL
                                            -------------------    PAID-IN      RETAINED     STOCKHOLDERS'
                                             SHARES     AMOUNT     CAPITAL       DEFICIT        DEFICIT
                                            --------   --------   ----------   -----------   -------------
<S>                                         <C>        <C>        <C>          <C>           <C>
Balance, December 31, 1996................   10,000     $1,000     $  5,000    $  (536,000)   $  (530,000)
  Net loss................................       --         --           --       (405,000)      (405,000)
                                             ------     ------     --------    -----------    -----------
Balance, December 31, 1997................   10,000      1,000        5,000       (941,000)      (935,000)
  Exercise of stock rights................    4,640         --      465,000             --        465,000
  Net loss................................       --         --           --       (757,000)      (757,000)
                                             ------     ------     --------    -----------    -----------
Balance, March 11, 1998...................   14,640     $1,000     $470,000    $(1,698,000)   $(1,227,000)
                                             ======     ======     ========    ===========    ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-49
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                            STATEMENTS OF CASH FLOWS

                     FOR THE YEAR ENDED DECEMBER 31, 1997,
           AND FOR THE PERIOD FROM JANUARY 1, 1998 TO MARCH 11, 1998

<TABLE>
<CAPTION>
                                                                             FOR THE PERIOD
                                                              FOR THE YEAR   FROM JANUARY 1,
                                                                 ENDED           1998 TO
                                                              DECEMBER 31,      MARCH 11,
                                                                  1997            1998
                                                              ------------   ---------------
<S>                                                           <C>            <C>
Cash flows from operating activities:
  Net loss..................................................    $(405,000)       $(757,000)
  Adjustments to reconcile net loss to net cash (used in)
    provided by operating activities:
    Depreciation and amortization...........................      186,000           29,000
    Loss on fixed asset disposal............................           --            3,000
    Write-off of commitment fees, net.......................           --           28,000
    Stock-based compensation................................           --          465,000
    Change in assets and liabilities:
      Accounts receivable...................................       92,000           15,000
      Other current assets..................................      (10,000)         (13,000)
      Accounts payable......................................        2,000           82,000
      Accrued liabilities...................................       12,000          290,000
                                                                ---------        ---------
        Net cash (used in) provided by operating
          activities........................................     (123,000)         142,000
                                                                ---------        ---------
Cash flows from investing activities:
  Purchase of property and equipment, net...................      (86,000)              --
                                                                ---------        ---------
Cash flows from financing activities:
  Proceeds from long-term debt..............................      172,000               --
  Repayments of long-term debt..............................      (86,000)          (7,000)
  Short-term borrowings.....................................      150,000               --
  Repayments of capital lease obligations...................           --           (2,000)
                                                                ---------        ---------
        Net cash provided by (used in) financing
          activities........................................      236,000           (9,000)
                                                                ---------        ---------
Net increase in cash and cash equivalents...................       27,000          133,000
Cash and cash equivalents, beginning of period..............      (15,000)          12,000
                                                                ---------        ---------
Cash and cash equivalents, end of period....................    $  12,000        $ 145,000
                                                                =========        =========
Supplementary information:
  Cash paid for interest....................................    $ 186,000        $  36,000
                                                                =========        =========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-50
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                         NOTES TO FINANCIAL STATEMENTS

                      DECEMBER 31, 1997 AND MARCH 11, 1998

1.  BUSINESS DESCRIPTION:

    Arbor Intelligent Systems, Inc. ("Arbor" or the "Company") was incorporated
on August 31, 1988, under the laws of the state of Michigan. The Company is an
Internet-based applications development group providing object-oriented
development services. The Company is headquartered in Ann Arbor, Michigan, and
operates primarily in the surrounding Ann Arbor area.

    On March 12, 1998, certain assets and liabilities of the Company were
acquired by AppNet Systems, Inc. ("AppNet"). The Company incurred $198,000 of
expenses in conjunction with the sale to AppNet primarily for early debt
retirement. This has been classified in other expenses in the accompanying
statements of operations.

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                        <C>
Computers, equipment and software........................  three to five years
Furniture and fixtures...................................  seven years
</TABLE>

    Purchased software and third-party costs incurred to develop software for
internal use are capitalized and amortized principally over three years.

    In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded long-lived assets
for impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

                                      F-51
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                      DECEMBER 31, 1997 AND MARCH 11, 1998

SOFTWARE DEVELOPMENT COSTS

    The Company has capitalized costs related to the development of certain
software products. In accordance with SFAS No. 86, "Accounting for the Costs of
Computer Software to Be Sold, Leased, or Otherwise Marketed," capitalization of
costs begins when technological feasibility has been established and ends when
the product is available for general release to customers. Amortization has been
computed and recognized based on the products' estimated economic lives of two
years. Capitalized costs and amortization periods are management's estimates and
are subject to change due to rapid technological changes in software
development.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable, short-term borrowings,
long-term debt and capital lease obligations. In management's opinion, the
carrying amounts of these financial instruments approximated their fair values
at December 31, 1997, and March 11, 1998.

STOCK-BASED COMPENSATION

    The Company accounts for stock-based employee compensation arrangements
using the intrinsic value method in accordance with provisions of Accounting
Principles Board ("APB") Opinion No. 25, "Accounting for Stock Issued to
Employees," and complies with the disclosure provisions of SFAS No. 123,
"Accounting for Stock-Based Compensation." Under APB Opinion No. 25,
compensation cost is recognized based on the difference, if any, on the date of
grant between the fair value of the Company's stock and the amount an employee
must pay to acquire the stock.

REVENUE RECOGNITION

    Revenues from time and material contracts are generally recognized based on
fixed hourly rates for direct labor hours expended.

    Costs of revenues include all direct material and labor costs related to
contract performance and does not include any related depreciation expense.

    Revenues from software product sales are recognized when the related product
is delivered, provided no significant vendor obligations remain. Revenues from
all maintenance agreements are recognized ratably over the term of the
agreement, generally one year.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                               REVENUES
                               -----------------------------------------           ACCOUNTS RECEIVABLE
                               FOR THE YEAR ENDED   FOR THE PERIOD ENDED   ------------------------------------
                                  DECEMBER 31,           MARCH 11,         AS OF DECEMBER 31,   AS OF MARCH 11,
                                      1997                  1998                  1997               1998
                               ------------------   --------------------   ------------------   ---------------
<S>                            <C>                  <C>                    <C>                  <C>
Customer A...................          23%                  48%                    23%                19%
Customer B...................          18%                  15%                    17%                16%
</TABLE>

                                      F-52
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                      DECEMBER 31, 1997 AND MARCH 11, 1998

INCOME TAXES

    The Company, with the consent of its shareholders, has elected to be taxed
pursuant to Subchapter S of the Internal Revenue Code (an "S corporation"). In
lieu of corporation income taxes, the shareholders of an S corporation are taxed
on their proportionate share of the Company's taxable income. Therefore, no
provision for federal income taxes has been included in the accompanying
financial statements.

RECENT ACCOUNTING PRONOUNCEMENTS

    In March 1998, the AIPCA issued Statement of Position 98-4 ("SOP 98-4"),
"Deferral of the Effective Date of a Provision of SOP 97-2." SOP 98-4 defers for
one year the application of certain provisions of Statement of Position 97-2
("SOP 97-2"), "Software Revenue Recognition." The Company does not expect the
adoption of SOP 97-2 or 98-4 to have a material effect on the Company's results
of operations, financial position or cash flows.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                        DECEMBER 31,   MARCH 11,
                                                            1997         1998
                                                        ------------   ---------
<S>                                                     <C>            <C>
Commercial clients....................................    $479,000     $469,000
Allowance for doubtful accounts.......................     (15,000)     (20,000)
                                                          --------     --------
    Accounts receivable, net..........................    $464,000     $449,000
                                                          ========     ========
</TABLE>

4.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                                       DECEMBER 31,   MARCH 11,
                                                           1997         1998
                                                       ------------   ---------
<S>                                                    <C>            <C>
Computers, equipment and software....................    $ 207,000    $ 204,000
Furniture and fixtures...............................       30,000       30,000
                                                         ---------    ---------
                                                           237,000      234,000
Accumulated depreciation and amortization............     (145,000)    (150,000)
                                                         ---------    ---------
    Property and equipment, net......................    $  92,000    $  84,000
                                                         =========    =========
</TABLE>

                                      F-53
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                      DECEMBER 31, 1997 AND MARCH 11, 1998

5.  OTHER NON-CURRENT ASSETS:

    Other non-current assets consists of the following:

<TABLE>
<CAPTION>
                                                       DECEMBER 31,   MARCH 11,
                                                           1997         1998
                                                       ------------   ---------
<S>                                                    <C>            <C>
Software development costs...........................    $ 423,000    $ 423,000
Commitment fees......................................       43,000           --
                                                         ---------    ---------
                                                           466,000      423,000
Accumulated amortization.............................     (268,000)    (277,000)
                                                         ---------    ---------
    Other non-current assets, net....................    $ 198,000    $ 146,000
                                                         =========    =========
</TABLE>

6.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                                        DECEMBER 31,   MARCH 11,
                                                            1997         1998
                                                        ------------   ---------
<S>                                                     <C>            <C>
Accrued compensation and benefits.....................    $423,000     $487,000
Accrued financing fees................................          --      198,000
Other.................................................      74,000      102,000
                                                          --------     --------
    Accrued liabilities...............................    $497,000     $787,000
                                                          ========     ========
</TABLE>

7.  COMMITMENTS AND CONTINGENCIES:

LEASES

    The Company has noncancelable operating leases, primarily for real estate,
that expire over the next three years. Rental expense for operating leases
during the year ended December 31, 1997 and for the period from January 1, 1998
to March 11, 1998, was $14,000 and $3,000, respectively.

    The Company leases certain equipment under capital leases.

                                      F-54
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                      DECEMBER 31, 1997 AND MARCH 11, 1998

    Future minimum lease payments under capital leases and noncancelable
operating leases are as follows as of March 11, 1998:

<TABLE>
<CAPTION>
                                                           CAPITAL    OPERATING
                                                            LEASES     LEASES
                                                           --------   ---------
<S>                                                        <C>        <C>
Period ended December 31, 1998...........................  $12,000     $ 8,000
1999.....................................................   12,000       6,000
2000.....................................................       --       3,000
2001.....................................................       --       1,000
                                                           -------     -------
    Total minimum lease payments.........................   24,000     $18,000
                                                                       =======
Less: Amount representing interest.......................   (3,000)
                                                           -------
Present value of capital lease obligations...............   21,000
Less: Current portion of capital lease obligations.......  (12,000)
                                                           -------
Long-term portion of capital lease obligations...........  $ 9,000
                                                           =======
</TABLE>

    Equipment under capital leases is summarized as follows:

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   MARCH 11,
                                                                  1997         1998
                                                              ------------   ---------
<S>                                                           <C>            <C>
Computer equipment..........................................     $34,000     $ 34,000
Accumulated depreciation....................................      (9,000)     (10,000)
                                                                 -------     --------
    Computer equipment, net.................................     $25,000     $ 24,000
                                                                 =======     ========
</TABLE>

8.  DEBT:

    Debt consists of the following:

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   MARCH 11,
                                                                  1997         1998
                                                              ------------   ---------
<S>                                                           <C>            <C>
Note payable, due 2001, bears interest at prime plus 4%,
  plus 1.5% of gross revenues, payable in monthly
  installments, secured by the assets of Arbor Intelligent
  Systems, Inc., guaranteed by former shareholder...........    $434,000     $425,000
Note payable, due February 14, 1998, bears interest at
  11.75%....................................................       1,000           --
Note payable, in default, due October 5, 1997, bears
  interest at 20%, payable in full, guaranteed by former
  shareholder...............................................     100,000      100,000
Note payable to related party, non-interest-bearing.........     150,000      153,000
                                                                --------     --------
    Total debt..............................................    $685,000     $678,000
                                                                ========     ========
</TABLE>

    The Company is not in compliance with debt covenants related to the note
payable, due 2001. As such, the note payable has been classified as current
since it is callable.

    The Company has a line of credit which expired on December 31, 1997, and was
collateralized by substantially all of the assets of the Company and is
guaranteed by the majority shareholder. The line of credit had a maximum
borrowing of $300,000. Interest on the outstanding balance was calculated at
10.5 percent. As of December 31, 1997, and March 11, 1998, there were borrowings
under the line of credit totaling $300,000.

                                      F-55
<PAGE>
                        ARBOR INTELLIGENT SYSTEMS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                      DECEMBER 31, 1997 AND MARCH 11, 1998

    The line of credit and notes payable contain restrictions on certain debt
and stock transactions.

9.  RETIREMENT PLAN:

    The Company maintains a profit-sharing and retirement plan under the
provisions of section 401(k) of the Internal Revenue Code. The Plan provides for
contributions by employees and a discretionary contribution by the Company. The
Plan is for the benefit of all employees. Participants may contribute up to 18%
of their compensation, subject to statutory limits. Employee contributions are
fully vested. The Company's contribution is discretionary and is determined by
its Board of Directors. Company contributions vest after five years of service.
There were no Company contributions for the year ended December 31, 1997 and for
the period from January 1, 1998 to March 11, 1998.

    Effective February 1, 1999, Arbor employees are covered by the AppNet 401(k)
Plan.

10. EMPLOYEE STOCK RIGHTS:

    The Company maintained a stock rights program for key employees. Pursuant to
the program, granted rights to acquire stock expired at the earlier of ten years
from the grant date or the termination of employment. The grants had value to
the employee only upon an equity transaction such as a public sale of common
stock or acquisition. Prior to the acquisition of the Company by AppNet, no
compensation expense had been recognized for these granted rights as such an
equity event was not deemed probable. Immediately prior to the AppNet
acquisition, rights to acquire 4,640 shares of common stock were exercised. A
charge of $465,000 which reflects the fair value of the Arbor common stock
acquired through exercise of these rights (as determined by the AppNet
acquisition) has been reflected as stock-based compensation in the accompanying
statement of operations in the period from January 1, 1998 to March 11, 1998.

    The following summarizes rights during 1997 and for the period from
January 1, 1998 to March 11, 1998:

<TABLE>
<CAPTION>
                                                              NUMBER OF
                                                               SHARES
                                                              ---------
<S>                                                           <C>
Stock rights outstanding December 31, 1996, exercise price
  of $0.....................................................    4,657
  Granted in 1997...........................................       --
  Exercised in 1997.........................................       --
  Expired in 1997...........................................     (517)
                                                               ------
Stock rights outstanding December 31, 1997, exercise price
  of $0.....................................................    4,140
  Granted in 1998...........................................      500
  Exercised in 1998.........................................   (4,640)
  Expired in 1998...........................................       --
                                                               ------
Stock rights outstanding, March 11, 1998....................       --
                                                               ======
Stock rights exercisable, December 31, 1997.................    1,673
                                                               ======
</TABLE>

11. RELATED-PARTY TRANSACTIONS:

    The Company has a non-interest bearing loan with the majority shareholder in
the amount of $150,000 and $153,000 as of December 31, 1997 and March 11, 1998,
respectively.

    The Company leases its real estate from the majority shareholder for $8,250
per month, on a month-to-month basis.

                                      F-56
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To New Media Publishing, Inc.:

    We have audited the accompanying balance sheets of New Media
Publishing, Inc. (a Virginia corporation), as of December 31, 1996 and 1997, and
October 1, 1998, and the related statements of operations, stockholders' equity,
and cash flows for the years ended December 31, 1996 and 1997, and for the
period from January 1, 1998 to October 1, 1998. These financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of New Media Publishing, Inc.
as of December 31, 1996 and 1997, and October 1, 1998, and the results of its
operations and its cash flows for the years ended December 31, 1996 and 1997,
and for the period from January 1, 1998 to October 1, 1998, in conformity with
generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
February 9, 1999

                                      F-57
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                                 BALANCE SHEETS

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

<TABLE>
<CAPTION>
                                                                DECEMBER 31,
                                                           -----------------------   OCTOBER 1,
                                                              1996         1997         1998
                                                           ----------   ----------   ----------
<S>                                                        <C>          <C>          <C>
ASSETS
Current assets:
  Cash and cash equivalents..............................  $  129,000   $  317,000   $  224,000
  Accounts receivable, net of allowance for doubtful
    accounts of $0, $0, and $208,000, respectively.......     265,000      628,000    1,184,000
  Other current assets...................................       2,000       19,000       69,000
                                                           ----------   ----------   ----------
    Total current assets.................................     396,000      964,000    1,477,000
Property and equipment, net..............................     102,000      275,000      403,000
Other assets.............................................          --       10,000       10,000
                                                           ----------   ----------   ----------
    Total assets.........................................  $  498,000   $1,249,000   $1,890,000
                                                           ==========   ==========   ==========
LIABILITIES, PREFERRED STOCK AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable.......................................  $   62,000   $  163,000   $  149,000
  Accrued liabilities....................................      50,000      552,000      321,000
  Current portion of long-term debt......................     250,000       51,000           --
  Current portion of capital lease obligations...........          --       32,000           --
                                                           ----------   ----------   ----------
    Total current liabilities............................     362,000      798,000      470,000
Long-term debt, net of current portion...................          --       50,000           --
Other long-term debt.....................................       4,000        7,000        1,000
Capital lease obligations................................          --       71,000           --
                                                           ----------   ----------   ----------
    Total liabilities....................................     366,000      926,000      471,000
Commitments and contingencies (Note 11)
Mandatorily redeemable preferred stock, no par value; 0,
  0, and 1,450,000 shares authorized; 0, 0, and 1,428,570
  shares issued and outstanding at December 31, 1996 and
  1997, and October 1, 1998, respectively; liquidation
  value $.875 per share..................................          --           --    1,230,000
Stockholders' equity:
  Common stock, no par value; 8,550,000 authorized;
    5,937,500, 5,000,000, and 5,000,000 shares issued and
    outstanding, respectively............................          --           --           --
  Less: Treasury stock, at cost, 1,250,000 shares........          --      (51,000)     (51,000)
  Additional paid-in capital.............................          --        1,000        1,000
  Retained earnings......................................     132,000      373,000      239,000
                                                           ----------   ----------   ----------
    Total stockholders' equity...........................     132,000      323,000      189,000
                                                           ----------   ----------   ----------
    Total liabilities, preferred stock and stockholders'
      equity.............................................  $  498,000   $1,249,000   $1,890,000
                                                           ==========   ==========   ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-58
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                            STATEMENTS OF OPERATIONS

                FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997,
           AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 1, 1998

<TABLE>
<CAPTION>
                                                        FOR THE YEARS ENDED     FOR THE PERIOD
                                                           DECEMBER 31,         FROM JANUARY 1,
                                                      -----------------------       1998 TO
                                                         1996         1997      OCTOBER 1, 1998
                                                      ----------   ----------   ---------------
<S>                                                   <C>          <C>          <C>
Revenues............................................  $1,291,000   $3,028,000     $3,711,000
Cost of revenues....................................     385,000    1,211,000      1,542,000
                                                      ----------   ----------     ----------
    Gross profit....................................     906,000    1,817,000      2,169,000
                                                      ----------   ----------     ----------
Operating expenses:
  Selling and marketing.............................       3,000       88,000        227,000
  General and administrative........................     498,000    1,246,000      1,868,000
  Depreciation and amortization.....................      38,000       68,000        123,000
                                                      ----------   ----------     ----------
    Total operating expenses........................     539,000    1,402,000      2,218,000
                                                      ----------   ----------     ----------
Income (loss) from operations.......................     367,000      415,000        (49,000)
Interest expense, net...............................      24,000       17,000             --
                                                      ----------   ----------     ----------
Income (loss) before income taxes...................     343,000      398,000        (49,000)
Provision for income taxes..........................      69,000      157,000         13,000
                                                      ----------   ----------     ----------
Net income (loss)...................................  $  274,000   $  241,000     $  (62,000)
                                                      ==========   ==========     ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-59
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                       STATEMENTS OF STOCKHOLDERS' EQUITY

                     FOR THE YEARS ENDED DECEMBER 31, 1996
      AND 1997, AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 1, 1998

<TABLE>
<CAPTION>
                                 REDEEMABLE EQUITY
                                     SECURITIES                                   STOCKHOLDERS' EQUITY
                               ----------------------   -------------------------------------------------------------------------
                                    MANDATORILY
                                     REDEEMABLE
                                  PREFERRED STOCK           COMMON STOCK                   ADDITIONAL                   TOTAL
                               ----------------------   ---------------------   TREASURY    PAID-IN     RETAINED    STOCKHOLDERS'
                                SHARES       AMOUNT       SHARES      AMOUNT     STOCK      CAPITAL     EARNINGS       EQUITY
                               ---------   ----------   ----------   --------   --------   ----------   ---------   -------------
<S>                            <C>         <C>          <C>          <C>        <C>        <C>          <C>         <C>
Balance, December 31, 1995...         --   $       --    5,937,500   $    --    $    --      $   --     $(142,000)    $(142,000)
  Net income.................         --           --           --        --         --          --       274,000       274,000
                               ---------   ----------   ----------   -------    --------     ------     ---------     ---------
Balance, December 31, 1996...         --           --    5,937,500        --         --          --       132,000       132,000
  Issuance of 312,500 shares
    of common stock..........         --           --      312,500        --         --       1,000            --         1,000
  Repurchase of 1,250,000
    shares of common stock...         --           --   (1,250,000)       --    (51,000)         --            --       (51,000)
  Net income.................         --           --           --        --         --          --       241,000       241,000
                               ---------   ----------   ----------   -------    --------     ------     ---------     ---------
Balance, December 31, 1997...         --           --    5,000,000        --    (51,000)      1,000       373,000       323,000
  Issuance of 1,428,570
    shares of Mandatorily
    Redeemable Preferred
    Stock....................  1,428,570    1,230,000           --        --         --          --            --            --
  Accretion of preferred
    stock dividend...........         --           --           --        --         --          --       (72,000)      (72,000)
  Net loss...................         --           --           --        --         --          --       (62,000)      (62,000)
                               ---------   ----------   ----------   -------    --------     ------     ---------     ---------
Balance, October 1, 1998.....  1,428,570   $1,230,000    5,000,000   $    --    $(51,000)    $1,000     $ 239,000     $ 189,000
                               =========   ==========   ==========   =======    ========     ======     =========     =========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-60
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                            STATEMENTS OF CASH FLOWS

                FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997,
           AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 1, 1998

<TABLE>
<CAPTION>
                                                            FOR THE YEARS ENDED   FOR THE PERIOD
                                                               DECEMBER 31,       FROM JANUARY 1,
                                                            -------------------       1998 TO
                                                              1996       1997     OCTOBER 1, 1998
                                                            --------   --------   ---------------
<S>                                                         <C>        <C>        <C>
Cash flows from operating activities:
  Net income (loss).......................................  $274,000   $241,000       $ (62,000)
  Adjustments to reconcile net income (loss) to net cash
    provided by (used in) operating activities:
      Depreciation and amortization.......................    38,000     68,000         123,000
      Deferred income taxes...............................     3,000      1,000          (4,000)
      Change in assets and liabilities:
        Accounts receivable, net..........................  (251,000)  (363,000)       (556,000)
        Other assets......................................     1,000    (25,000)        (52,000)
        Accounts payable..................................   (15,000)   101,000         (14,000)
        Accrued liabilities...............................     9,000    502,000        (303,000)
                                                            --------   --------       ---------
          Net cash provided by (used in) operating
            activities....................................    59,000    525,000        (868,000)
                                                            --------   --------       ---------
Cash flows from investing activities:
  Purchase of property and equipment, net.................   (78,000)  (138,000)       (251,000)
                                                            --------   --------       ---------
Cash flows from financing activities:
  Proceeds from long-term debt............................   125,000    250,000              --
  Repayments of long-term debt............................        --   (449,000)       (101,000)
  Repayments of capital lease obligations.................        --         --        (103,000)
  Proceeds from issuance of preferred stock...............        --         --       1,230,000
  Proceeds from issuance of common stock..................        --      1,000              --
  Payments to repurchase common stock.....................        --     (1,000)             --
                                                            --------   --------       ---------
          Net cash provided by (used in) financing
            activities....................................   125,000   (199,000)      1,026,000
                                                            --------   --------       ---------
Net increase (decrease) in cash and cash equivalents......   106,000    188,000         (93,000)
Cash and cash equivalents, beginning of period............    23,000    129,000         317,000
                                                            --------   --------       ---------
Cash and cash equivalents, end of period..................  $129,000   $317,000       $ 224,000
                                                            ========   ========       =========
Supplementary information:
  Cash paid for income taxes..............................  $ 43,000   $ 32,000       $ 218,000
                                                            ========   ========       =========
  Cash paid for interest..................................  $ 24,000   $ 23,000       $  13,000
                                                            ========   ========       =========
Non-cash financing and investing activities:
  Issuance of note payable for repurchase of common stock
    (Note 6)..............................................  $     --   $ 50,000       $      --
                                                            ========   ========       =========
  Capital lease additions (Note 11).......................  $     --   $103,000       $      --
                                                            ========   ========       =========
  Accretion of preferred stock dividend (Note 2)..........  $     --   $     --       $  72,000
                                                            ========   ========       =========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-61
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                         NOTES TO FINANCIAL STATEMENTS

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

1.  BUSINESS DESCRIPTION:

    New Media Publishing, Inc. ("NMP" or the "Company") was incorporated in
1995, under the laws of the state of Virginia. NMP is a provider of
comprehensive interactive community-building services for commercial and
not-for-profit entities. The Company is headquartered in Falls Church, Virginia.

    On October 2, 1998, all of the issued and outstanding stock of the Company
was acquired by AppNet Systems, Inc. ("AppNet").

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                           <C>
Computer equipment..........................................  three years
Furniture and fixtures......................................  seven years
</TABLE>

    Purchased software is capitalized and amortized principally over three
years. Leasehold improvements are amortized over the lesser of the estimated
useful life of the asset or the remaining lease term.

    In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded long-lived assets
for impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable, long-term debt, capital
lease obligations and Mandatorily Redeemable

                                      F-62
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

Preferred Stock. In management's opinion, the carrying amounts of these
financial instruments approximated their fair values at December 31, 1996 and
1997, and October 1, 1998.

CAPITAL STOCK

    On December 8, 1997, the Board of Directors approved a common stock split of
625-to-1. In addition, on April 23, 1998, the Board of Directors approved a
common and preferred stock split of ten-to-one. All share amounts in the
accompanying financial statements have been retroactively adjusted to reflect
these splits.

    In March 1998, the Company amended and restated its Articles of
Incorporation. The amended and restated Articles of Incorporation increased the
authorized number of shares of no par common stock to 7,500,000 shares and
authorized 1,428,570 shares of a new class of $0.0875 cumulative annual
dividend, nonparticipating, convertible, redeemable, voting, no par preferred
stock called the Series A Convertible Preferred Stock (the "Mandatorily
Redeemable Preferred Stock"). The Company issued 1,428,570 shares of the
Mandatorily Redeemable Preferred Stock for net proceeds of $1,230,000. Dividends
on the Mandatorily Redeemable Preferred Stock were to cease to accrue on the
sixth anniversary of the issue date. In the event of liquidation, holders of the
Mandatorily Redeemable Preferred Stock would have first received an amount per
share equal to the original issue price of the shares plus accrued but unpaid
dividends thereon and then participate pro rata with the holders of the
Company's common stock in the distribution of any remaining funds in excess of
$5,000,000. Each share of Mandatorily Redeemable Preferred Stock was convertible
at any time at the option of the holder into one share of common stock, subject
to adjustment as a result of the occurrence of certain events. Further,
beginning on March 5, 2004, the Company would have been required, at the request
of the holders, to redeem at the original issue price plus accrued but unpaid
dividends, at least 10 percent of the outstanding Mandatorily Redeemable
Preferred Stock on each successive calendar quarter until all shares had been
redeemed. The dividend on the Mandatorily Redeemable Preferred Stock was
originally due March 1999. The holders of the Mandatorily Redeemable Preferred
Stock forgave payment of this dividend in conjunction with NMP's purchase by
AppNet.

    The Company's common stock, including common stock which may be authorized
and issued in the future, is subject to a Shareholders' Agreement, which
includes certain co-sale rights, transfer restrictions, and buy back rights. On
April 23, 1998, the Board of Directors approved an increase in the authorized
number of shares of common and preferred stock to 8,550,000 and 1,450,000,
respectively.

STOCK-BASED COMPENSATION

    The Company accounts for stock-based employee compensation arrangements
using the intrinsic value method in accordance with provisions of Accounting
Principles Board ("APB") Opinion No. 25, "Accounting for Stock Issued to
Employees," and complies with the disclosure provisions of SFAS No. 123,
"Accounting for Stock-Based Compensation." Under APB Opinion No. 25,
compensation cost is recognized based on the difference, if any, on the date of
grant between the fair value of the Company's stock and the amount an employee
must pay to acquire the stock.

REVENUE RECOGNITION

    Revenues from time and materials contracts are recognized based on fixed
hourly rates for direct labor hours expended. Revenues from fixed-price
contracts are recognized on the percentage-of-

                                      F-63
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

completion method, with costs and estimated profits recorded as work is
performed. Revenues exclude the costs of media and advertising purchases
reimbursed by clients.

    Cost of revenues include all direct material and labor costs related to
contract performance, and does not include any related depreciation expense.
Provisions for estimated losses on uncompleted contracts are made in the period
in which such losses are determined. Changes in job performance and estimated
profitability, including final contract settlements, may result in revisions to
costs and income and are recognized in the period in which the revisions are
determined. Unbilled receivables on contracts are comprised of costs, plus
earnings on certain contracts in excess of contractual billings on such
contracts. Cash received in excess of costs incurred is classified as deferred
revenue.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                                   REVENUES                            ACCOUNTS RECEIVABLE
                                ----------------------------------------------   --------------------------------
                                 FOR THE YEAR ENDED                                     AS OF
                                    DECEMBER 31,          FOR THE PERIOD ENDED      DECEMBER 31,         AS OF
                                ---------------------          OCTOBER 1,        -------------------   OCTOBER 1,
                                  1996         1997               1998             1996       1997        1998
                                --------     --------     --------------------   --------   --------   ----------
<S>                             <C>          <C>          <C>                    <C>        <C>        <C>
Customer A....................    *           16.3%            *                   *         21.7%        *
</TABLE>

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

*   Represents less than 10% of total.

INCOME TAXES

    Income taxes are accounted for using an asset and liability approach that
requires the recognition of taxes payable or refundable for the current year and
deferred tax liabilities and assets for the future tax consequences of events
that have been recognized in the Company's financial statements or tax returns.
The measurement of current and deferred tax liabilities and assets are based on
provisions of the enacted tax law; the effects of future changes in tax laws or
rates are not anticipated. The measurement of deferred tax assets is reduced, if
necessary, by the amount of any tax benefits that, based on available evidence,
are not expected to be realized.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                 DECEMBER 31,
                                              -------------------   OCTOBER 1,
                                                1996       1997        1998
                                              --------   --------   ----------
<S>                                           <C>        <C>        <C>
Accounts receivable.........................  $169,000   $486,000   $  943,000
Unbilled accounts receivable................    96,000    142,000      449,000
Allowance for doubtful accounts.............        --         --     (208,000)
                                              --------   --------   ----------
    Accounts receivable, net................  $265,000   $628,000   $1,184,000
                                              ========   ========   ==========
</TABLE>

                                      F-64
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

4.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                              --------------------   OCTOBER 1,
                                                1996       1997         1998
                                              --------   ---------   ----------
<S>                                           <C>        <C>         <C>
Computer equipment..........................  $145,000   $ 386,000   $ 627,000
Furniture and fixtures......................     7,000       7,000       7,000
Leasehold improvements......................        --          --      10,000
                                              --------   ---------   ---------
                                               152,000     393,000     644,000
Accumulated depreciation and amortization...   (50,000)   (118,000)   (241,000)
                                              --------   ---------   ---------
    Property and equipment, net.............  $102,000   $ 275,000   $ 403,000
                                              ========   =========   =========
</TABLE>

5.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                                    DECEMBER 31,
                                                 -------------------   OCTOBER 1,
                                                   1996       1997        1998
                                                 --------   --------   ----------
<S>                                              <C>        <C>        <C>
Accrued compensation and benefits..............  $29,000    $198,000    $102,000
Accrued bonuses................................       --     200,000          --
Accrued Mandatorily Redeemable Preferred Stock
  dividends....................................       --          --      72,000
Deferred revenues..............................   21,000     154,000     147,000
                                                 -------    --------    --------
    Accrued liabilities........................  $50,000    $552,000    $321,000
                                                 =======    ========    ========
</TABLE>

6.  DEBT:

    Debt consists of the following:

<TABLE>
<CAPTION>
                                                   DECEMBER 31,
                                                -------------------   OCTOBER 1,
                                                  1996       1997        1998
                                                --------   --------   ----------
<S>                                             <C>        <C>        <C>
Note payable to former shareholder, due
  December 31, 1999, bore interest at 8%,
  interest payable quarterly..................  $     --   $ 50,000    $     --
Bank note payable, due May 15, 2000, payable
  in monthly installments of $6,944 plus
  interest at bank's prime rate plus 1%
  secured by the Company's assets.............        --     51,000          --
Note payable, principal due April 27, 1997,
  bears interest at 10%, payable
  semi-annually...............................   250,000         --          --
                                                --------   --------    --------
    Total debt................................   250,000    101,000          --
                                                --------   --------    --------
Less: Current portion.........................   250,000     51,000          --
                                                --------   --------    --------
    Long term-debt, net of current portion....  $     --   $ 50,000    $     --
                                                ========   ========    ========
</TABLE>

                                      F-65
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

    In 1997, the Company had a line of credit which was collateralized by
substantially all of the assets of the Company. Under the terms of the line of
credit, borrowings were limited to 80 percent of qualified accounts receivable,
up to a maximum borrowing of $250,000. Interest on the outstanding balance was
calculated as the bank's prime rate of interest plus one and one-half percent.
As of December 31, 1997, there was no amount outstanding under the line of
credit. The agreement expired in May 1998.

    The note payable issued to the former shareholder related to the
reacquisition of 1,250,000 shares of common stock. The note was paid in full in
February 1998.

    The bank note payable contained certain restrictions on capital
expenditures, the incurrence of additional indebtedness, payment of cash
dividends and treasury stock transactions. This bank borrowing was paid in full
during February 1998.

7.  RETIREMENT PLAN:

    The Company maintains a retirement plan under the provisions of
section 401(k) of the Internal Revenue Code. The plan was adopted January 1,
1997. The Plan provides for contributions by employees and by the Company.
Participants may contribute up to 15 percent of their compensation, subject to
statutory limits. The Company's contribution is discretionary and is determined
by its Board of Directors. Company contributions vest immediately. Company
contributions totaled $32,000, and $40,000 for the year ended December 31, 1997,
and for the period from January 1, 1998 to October 1, 1998, respectively.
Effective February 1,1999, NMP employees are covered by the AppNet 401(k) plan.

8.  EMPLOYEE STOCK OPTION PLAN:

    On December 31, 1997, the Company adopted a stock option plan for employees,
directors, and consultants of the Company. Options expire no later than ten
years from the date of the grant or when employment ceases, whichever comes
first. The maximum number of shares of common stock which may be issued pursuant
to the stock option plan was 714,290.

    The stock option plan is accounted for under APB Opinion No. 25 and no
compensation has been recognized for the plan. Had compensation cost for the
plan been determined based on the estimated fair value of the options at the
grant dates consistent with the method of SFAS No. 123, the effect to pro forma
net income would have been approximately $7,000 and $91,000, for the year ended
December 31, 1997, and for the period from January 1, 1998 to October 1, 1998,
respectively. The weighted average fair value of the options granted during
1997, and during the period from January 1, 1998 to October 1, 1998, is
estimated to be $.03, and $.22, respectively, per option assuming the following:
dividend yield of 0 percent, risk-free interest rate ranging from 5.40 to
6.00 percent, volatility of 0 percent, and an expected term of the options of
5 years.

                                      F-66
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

    The following summarizes option activity during 1997 and for the period from
January 1, 1998 to October 1, 1998:

<TABLE>
<CAPTION>
                                                               STOCK OPTIONS
                                                                OUTSTANDING
                                                            -------------------
                                                              1997       1998
                                                            --------   --------
<S>                                                         <C>        <C>
Beginning of period.......................................       --    286,000
  Granted.................................................  286,000    168,000
  Exercised...............................................       --         --
  Cancelled...............................................       --    (33,000)
                                                            -------    -------
End of period.............................................  286,000    421,000
                                                            =======    =======
Exercisable at end of period..............................       --     14,000
                                                            =======    =======
</TABLE>

<TABLE>
<CAPTION>
                                                             WEIGHTED AVERAGE
                                                              EXERCISE PRICE
                                                            -------------------
                                                              1997       1998
                                                            --------   --------
<S>                                                         <C>        <C>
Beginning of period.......................................  $    --    $   .03
  Granted.................................................      .03       1.16
  Exercised...............................................       --         --
  Cancelled...............................................       --        .05
End of period.............................................  $   .03    $   .48
                                                            =======    =======
Exercisable at end of period..............................  $    --    $   .04
                                                            =======    =======
</TABLE>

    When AppNet acquired NMP (Note 1), the options outstanding under the stock
option plan were assumed as part of the purchase combination and converted to
AppNet options.

9.  INCOME TAXES:

    The Company follows the provisions of SFAS No. 109, "Accounting for Income
Taxes," for financial reporting purposes. Deferred tax assets or liabilities at
the end of each period are determined using the currently enacted tax rates to
apply to taxable income in the period in which the deferred tax asset or
liability is expected to be settled or realized.

                                      F-67
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

    The sources of and differences between the financial accounting and tax
basis of NMP's assets and liabilities that give rise to the net deferred tax
liability (asset) are as follows:

<TABLE>
<CAPTION>
                                                       DECEMBER 31,
                                                    -------------------   OCTOBER 1,
                                                      1996       1997        1998
                                                    --------   --------   ----------
<S>                                                 <C>        <C>        <C>
Deferred tax liability
  Depreciation....................................   $4,000     $8,000     $  2,000
Deferred tax asset
  Reserves........................................    1,000      4,000       71,000
                                                     ------     ------     --------
Net deferred tax liability (asset)................   $3,000     $4,000      (69,000)
                                                     ======     ======
Less: Valuation allowance.........................                           69,000
                                                                           --------
Net deferred tax liability (asset)................                         $     --
                                                                           ========
</TABLE>

    The components of the provision for income taxes for the years ended
December 31, 1996 and 1997, and for the period from January 1, 1998 to
October 1, 1998, are as follows:

<TABLE>
<CAPTION>
                                                    DECEMBER 31,
                                                 -------------------   OCTOBER 1,
                                                   1996       1997        1998
                                                 --------   --------   ----------
<S>                                              <C>        <C>        <C>
Federal income taxes:
  Current......................................  $55,000    $132,000     $13,000
  Deferred provision (benefit).................    3,000       1,000      (4,000)
State taxes....................................   11,000      24,000       4,000
                                                 -------    --------     -------
Provision for income taxes.....................  $69,000    $157,000     $13,000
                                                 =======    ========     =======
</TABLE>

    For the years ended December 31, 1996 and 1997, and for the period from
January 1, 1998 to October 1, 1998, the provision for income taxes differed from
the amounts computed at the statutory rate, as follows:

<TABLE>
<CAPTION>
                                                   DECEMBER 31,
                                                -------------------   OCTOBER 1,
                                                  1996       1997        1998
                                                --------   --------   ----------
<S>                                             <C>        <C>        <C>
Income tax computed at statutory rates........  $116,000   $135,000    $(17,000)
State income taxes, net of federal income tax
  benefit.....................................     7,000     15,000       3,000
Change in valuation allowance.................   (53,000)        --      35,000
Other, net....................................    (1,000)     7,000      (8,000)
                                                --------   --------    --------
                                                $ 69,000   $157,000    $ 13,000
                                                ========   ========    ========
</TABLE>

    The valuation allowance for deferred tax assets as of January 1, 1996 was
$53,000. In assessing the realizability of deferred tax assets, management
considers whether it is more likely than not that some portion or all of the
deferred tax assets will not be realized. Management considers the scheduled
reversal of deferred tax liabilities, projected future taxable income, and tax
planning strategies in making this assessment. For the year ended December 31,
1996, management determined that the deferred tax asset would be realized and
decreased the valuation allowance by $53,000. For the period

                                      F-68
<PAGE>
                           NEW MEDIA PUBLISHING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 1, 1998

from January 1, 1998 to October 1, 1998, management determined that a valuation
allowance of $35,000 was required.

10. RELATED PARTIES:

    Certain directors and other parties related to the Company through common
shareholder interests provided administrative and management consulting services
to the Company totaling $115,000, $191,000 and $34,000 for the years ended
December 31, 1996 and 1997, and for the period from January 1, 1998 to
October 1, 1998, respectively. Rent expense to companies related through common
shareholder interest totaled $34,000, $74,000, and $74,000 for the years ended
December 31, 1996 and 1997, and for the period from January 1, 1998 to
October 1, 1998, respectively. Accounts payable included $40,000, $76,000 and $0
related to these transactions at December 31, 1996 and 1997, and October 1,
1998, respectively.

11. COMMITMENTS AND CONTINGENCIES:

COMMITMENTS

    In connection with the repurchase by the Company of 1,250,000 shares of the
Company's common stock, the Company entered into a consulting and
non-competition agreement with a former shareholder on April 1, 1997, which
provided for monthly payments by the Company totaling $57,600 for the period
from January 1, 1998 to December 31, 1999. The Company accelerated the payment
schedule and paid the remaining balance as of October 1, 1998.

LEASES

    The Company has noncancelable operating leases, primarily for real estate,
that expire over the next two years. Rental expense for operating leases during
the years ended December 31, 1996 and 1997, and for the period from January 1,
1998 to October 1, 1998, was $34,000, $79,000 and $154,000, respectively.

    During 1997, the Company entered into a capital lease for certain equipment.
This capital lease was paid-off on October 1, 1998.

    Future minimum lease payments under the noncancelable operating leases are
as follows as of October 1, 1998:

<TABLE>
<CAPTION>
                                                              OPERATING
                                                               LEASES
                                                              ---------
<S>                                                           <C>
Period ended December 31, 1998..............................  $ 30,000
1999........................................................   122,000
                                                              --------
    Total minimum lease payments............................  $152,000
                                                              ========
</TABLE>

                                      F-69
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To Century Computing, Inc.:

    We have audited the accompanying balance sheets of Century Computing, Inc.
(a Delaware corporation), as of December 31, 1996 and 1997, and October 11,
1998, and the related statements of operations, stockholders' equity, and cash
flows for the years ended December 31, 1996 and 1997, and for the period from
January 1, 1998 to October 11, 1998. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Century Computing, Inc. as
of December 31, 1996 and 1997, and October 11, 1998, and the results of its
operations and its cash flows for the years ended December 31, 1996 and 1997,
and for the period from January 1, 1998 to October 11, 1998, in conformity with
generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
February 22, 1999

                                      F-70
<PAGE>
                            CENTURY COMPUTING, INC.

                                 BALANCE SHEETS

             AS OF DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

<TABLE>
<CAPTION>
                                                               DECEMBER 31,
                                                         -------------------------   OCTOBER 11,
                                                            1996          1997          1998
                                                         -----------   -----------   -----------
<S>                                                      <C>           <C>           <C>
ASSETS
Current assets:
  Cash and cash equivalents............................  $   549,000   $ 1,225,000   $     8,000
  Accounts receivable, net of allowance for doubtful
    accounts of $0, $0 and $129,000, respectively......    1,260,000     2,023,000     2,178,000
  Other current assets.................................       62,000        62,000       684,000
                                                         -----------   -----------   -----------
      Total current assets.............................    1,871,000     3,310,000     2,870,000
Property and equipment, net............................      416,000       573,000       653,000
Deferred income taxes..................................       30,000            --            --
Other assets...........................................       11,000        11,000        11,000
                                                         -----------   -----------   -----------
      Total assets.....................................  $ 2,328,000   $ 3,894,000   $ 3,534,000
                                                         ===========   ===========   ===========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable.....................................  $   255,000   $   280,000   $   703,000
  Accrued liabilities..................................      338,000     1,194,000     1,294,000
                                                         -----------   -----------   -----------
      Total current liabilities........................      593,000     1,474,000     1,997,000
  Deferred income taxes................................           --            --        67,000
                                                         -----------   -----------   -----------
      Total liabilities................................      593,000     1,474,000     2,064,000
                                                         -----------   -----------   -----------

Commitments and contingencies (Note 7)
Stockholders' equity
  Class A common stock, voting, $.01 par value;
    2,500,000 shares authorized; 603,055, 603,055, and
    606,929 shares issued and outstanding,
    respectively.......................................        6,000         6,000         6,000
  Class B common stock, nonvoting, $.01 par value;
    2,500,000 shares authorized; 11,630, 14,380, and
    17,461 shares issued and outstanding,
    respectively.......................................           --            --            --
  Less: Treasury stock, at cost--257,987, 258,056, and
    258,306, respectively..............................   (1,175,000)   (1,176,000)   (1,178,000)
  Additional paid-in capital...........................      255,000       271,000       315,000
  Retained earnings....................................    2,649,000     3,319,000     2,327,000
                                                         -----------   -----------   -----------
      Total stockholders' equity.......................    1,735,000     2,420,000     1,470,000
                                                         -----------   -----------   -----------
      Total liabilities and stockholders' equity.......  $ 2,328,000   $ 3,894,000   $ 3,534,000
                                                         ===========   ===========   ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-71
<PAGE>
                            CENTURY COMPUTING, INC.

                            STATEMENTS OF OPERATIONS

                FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 11, 1998

<TABLE>
<CAPTION>
                                                                                   FOR THE
                                                      FOR THE YEARS ENDED        PERIOD FROM
                                                          DECEMBER 31,         JANUARY 1, 1998
                                                    ------------------------    TO OCTOBER 11,
                                                       1996         1997             1998
                                                    ----------   -----------   ----------------
<S>                                                 <C>          <C>           <C>
Revenues..........................................  $7,198,000   $10,850,000     $10,040,000
Cost of revenues..................................   3,356,000     5,309,000       6,192,000
                                                    ----------   -----------     -----------
    Gross profit..................................   3,842,000     5,541,000       3,848,000
Operating expenses:
  Selling, general and administrative.............   2,992,000     3,890,000       2,751,000
  Acquisition-related compensation................          --            --         953,000
  Depreciation and amortization...................     153,000       179,000         156,000
                                                    ----------   -----------     -----------
    Total operating expenses......................   3,145,000     4,069,000       3,860,000
Income (loss) from operations.....................     697,000     1,472,000         (12,000)
Interest income, net..............................       8,000        29,000          41,000
Other income (expense)............................      20,000            --        (423,000)
                                                    ----------   -----------     -----------
Income (loss) before income taxes.................     725,000     1,501,000        (394,000)
Provision (benefit) for income taxes..............     279,000       580,000        (135,000)
                                                    ----------   -----------     -----------
Net income (loss).................................  $  446,000   $   921,000     $  (259,000)
                                                    ==========   ===========     ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-72
<PAGE>
                            CENTURY COMPUTING, INC.
                       STATEMENTS OF STOCKHOLDERS' EQUITY
                FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 11, 1998

<TABLE>
<CAPTION>
                                   COMMON STOCK          COMMON STOCK
                                      CLASS A               CLASS B                       ADDITIONAL                    TOTAL
                                -------------------   -------------------    TREASURY      PAID-IN      RETAINED    STOCKHOLDERS'
                                 SHARES     AMOUNT     SHARES     AMOUNT       STOCK       CAPITAL      EARNINGS       EQUITY
                                --------   --------   --------   --------   -----------   ----------   ----------   -------------
<S>                             <C>        <C>        <C>        <C>        <C>           <C>          <C>          <C>
Balance, December 31, 1995....  613,485     $6,000         --     $   --    $(1,036,000)   $258,000    $2,374,000    $1,602,000
  Repurchase of 21,755 shares
    of common stock...........       --         --         --         --       (139,000)         --            --      (139,000)
  Stock conversion............  (10,430)        --     11,630         --             --      (3,000)           --        (3,000)
  Dividends to stockholders...       --         --         --         --             --          --      (171,000)     (171,000)
  Net income..................       --         --         --         --             --          --       446,000       446,000
                                -------     ------     ------     ------    -----------    --------    ----------    ----------
Balance, December 31, 1996....  603,055      6,000     11,630         --     (1,175,000)    255,000     2,649,000     1,735,000
  Repurchase of 189 shares of
    common stock..............       --         --         --         --         (1,000)         --            --        (1,000)
  Exercise of stock options...       --         --      2,750         --             --      16,000            --        16,000
  Dividends to stockholders...       --         --         --         --             --          --      (251,000)     (251,000)
  Net income..................       --         --         --         --             --          --       921,000       921,000
                                -------     ------     ------     ------    -----------    --------    ----------    ----------
Balance, December 31, 1997....  603,055      6,000     14,380         --     (1,176,000)    271,000     3,319,000     2,420,000
  Repurchase of 250 shares of
    common stock..............       --         --         --         --         (2,000)         --            --        (2,000)
  Exercise of stock options...    3,874         --      3,081         --             --      44,000            --        44,000
  Dividends to stockholders...       --         --         --         --             --          --      (733,000)     (733,000)
  Net loss....................       --         --         --         --             --          --      (259,000)     (259,000)
                                -------     ------     ------     ------    -----------    --------    ----------    ----------
Balance, October 11, 1998.....  606,929     $6,000     17,461     $   --    $(1,178,000)   $315,000    $2,327,000    $1,470,000
                                =======     ======     ======     ======    ===========    ========    ==========    ==========
</TABLE>

                                      F-73
<PAGE>
                            CENTURY COMPUTING, INC.

                            STATEMENTS OF CASH FLOWS

                FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 11, 1998

<TABLE>
<CAPTION>
                                                                                   FOR THE PERIOD
                                                              FOR THE YEARS        FROM JANUARY 1,
                                                            ENDED DECEMBER 31,         1998 TO
                                                          ----------------------     OCTOBER 11,
                                                            1996         1997           1998
                                                          ---------   ----------   ---------------
<S>                                                       <C>         <C>          <C>
Cash flows from operating activities:
  Net income (loss).....................................  $ 446,000   $  921,000      $  (259,000)
  Adjustments to reconcile net income (loss) to net cash
    provided by (used in) operating activities:
      Deferred income taxes.............................    (25,000)      78,000         (156,000)
      Depreciation and amortization.....................    153,000      179,000          156,000
      Change in assets and liabilities:
        Accounts receivable.............................     53,000     (763,000)        (155,000)
        Other current assets............................    (39,000)      28,000         (475,000)
        Accounts payable................................     83,000       25,000          423,000
        Accrued liabilities.............................      6,000      780,000          176,000
                                                          ---------   ----------      -----------
          Net cash provided by (used in) operating
            activities..................................    677,000    1,248,000         (290,000)
                                                          ---------   ----------      -----------
Cash flows from investing activities:
  Purchase of property and equipment, net...............   (243,000)    (336,000)        (236,000)
                                                          ---------   ----------      -----------
Cash flows from financing activities:
  Repayments of long-term debt..........................   (127,000)          --               --
  Payments to repurchase common stock...................   (139,000)      (1,000)          (2,000)
  Dividends to stockholders.............................   (171,000)    (251,000)        (733,000)
  Proceeds from exercise of stock options...............         --       16,000           44,000
  Stock conversion......................................     (3,000)          --               --
                                                          ---------   ----------      -----------
          Net cash used in financing activities.........   (440,000)    (236,000)        (691,000)
                                                          ---------   ----------      -----------
Net (decrease) increase in cash and cash equivalents....     (6,000)     676,000       (1,217,000)
Cash and cash equivalents, beginning of period..........    555,000      549,000        1,225,000
                                                          ---------   ----------      -----------
Cash and cash equivalents, end of period................  $ 549,000   $1,225,000      $     8,000
                                                          =========   ==========      ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-74
<PAGE>
                            CENTURY COMPUTING, INC.

                         NOTES TO FINANCIAL STATEMENTS

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

1.  BUSINESS DESCRIPTION:

    Century Computing, Inc. ("Century" or the "Company") was incorporated in
1979, under the laws of the state of Delaware. Century is a government
contractor that provides systems integration and processing services to improve
clients' business processes, including networking and data communications,
computer and Internet security, image processing, graphical user interfacing and
object-oriented design and development. Century is headquartered in Laurel,
Maryland, and operates primarily in the United States.

    On October 11, 1998, all of the issued and outstanding stock of the Company
was acquired by AppNet Systems, Inc. ("AppNet").

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological changes,
government regulations and the Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed over the estimated
useful lives of the related assets, as follows:

<TABLE>
<S>                                                        <C>
Computers, equipment and software........................  three to five years
Furniture and fixtures...................................  seven years
</TABLE>

    Purchased software and third-party costs incurred to develop software for
internal use are capitalized and amortized principally over five years.
Leasehold improvements are amortized over the lesser of the estimated useful
life of the asset or the remaining lease term.

    In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded long-lived assets
for impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

                                      F-75
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

SOFTWARE DEVELOPMENT COSTS

    The Company has capitalized costs related to the development of certain
software products. In accordance with SFAS No. 86, "Accounting for the Costs of
Computer Software to Be Sold, Leased, or Otherwise Marketed," capitalization of
costs begins when technological feasibility has been established and ends when
the product is available for general release to customers. Amortization has been
computed and recognized based on the products' estimated economic lives of two
years. Capitalized costs and amortization periods are management's estimates and
may have to be modified due to inherent technological changes in software
development.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash, marketable
securities, accounts receivable, short-term borrowings and accounts payable. In
management's opinion, the carrying amounts of these financial instruments
approximated their fair values at December 31, 1996 and 1997, and October 11,
1998.

STOCK-BASED COMPENSATION

    The Company accounts for its stock-based employee compensation arrangements
using the intrinsic value method in accordance with provisions of Accounting
Principles Board ("APB") Opinion No. 25, "Accounting for Stock Issued to
Employees," and complies with the disclosure provisions of SFAS No. 123,
"Accounting for Stock-Based Compensation." Under APB Opinion No. 25,
compensation cost is recognized based on the difference, if any, on the date of
grant between the fair value of the Company's stock and the amount an employee
must pay to acquire the stock.

REVENUE RECOGNITION

    Revenues from time and material contracts are recognized based on fixed
hourly rates for direct labor hours expended. Revenues from fixed-price
contracts are recognized on the percentage-of-completion method, with costs and
estimated profits recorded as work is performed. Revenues from
cost-plus-fixed-fee contracts are recognized on the basis of direct costs, plus
indirect costs incurred, plus a fixed profit percentage.

    Cost of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.
Provisions for estimated losses on uncompleted contracts are made in the period
in which such losses are determined. Changes in contract performance and
estimated profitability, including final contract settlements, may result in
revisions to costs and income and are recognized in the period in which the
revisions are determined. Unbilled receivables on contracts are comprised of
costs, plus earnings on certain contracts in excess of contractual billings on
such contracts.

    Revenues from software sales are recognized when the related product is
sold, provided no significant vendor obligations remain.

BUSINESS CONCENTRATION AND CREDIT RISK

    Revenues for the years ended December 31, 1996 and 1997 and for the period
from January 1, 1998 through October 11, 1998, were concentrated with 45, 74 and
62 percent of agencies of the United States Government, respectively.

                                      F-76
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

    Billed accounts receivable and unbilled accounts receivable as of
December 31, 1996 and 1997, and October 11, 1998, were concentrated with 56, 78
and 55 percent and 51, 78 and 50 percent of agencies of the United States
Government, respectively.

INCOME TAXES

    Income taxes are accounted for using an asset and liability approach that
requires the recognition of taxes payable or refundable for the current year and
deferred tax liabilities and assets for the future tax consequences of events
that have been recognized in the Company's financial statements or tax returns.
The measurement of current and deferred tax liabilities and assets are based on
provisions of the enacted tax law; the effects of future changes in tax laws or
rates are not anticipated. The measurement of deferred tax assets is reduced, if
necessary, by the amount of any tax benefits that, based on available evidence,
are not expected to be realized.

RECENT ACCOUNTING PRONOUNCEMENTS

    In March 1998, AIPCA issued Statement of Position 98-4 ("SOP 98-4"),
"Deferral of the Effective Date of a Provision of SOP 97-2." SOP 98-4 defers for
one year the application of certain provisions of Statement of Position 97-2
("SOP 97-2"), "Software Revenue Recognition." The Company does not expect the
adoption of these standards to have a material effect on the Company's results
of operations, financial position, or cash flows.

RECLASSIFICATIONS

    Certain amounts from the prior year financial statements have been
reclassified to conform with the current presentation.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                DECEMBER 31,
                                           -----------------------   OCTOBER 11,
                                              1996         1997         1998
                                           ----------   ----------   -----------
<S>                                        <C>          <C>          <C>
Commercial clients.......................   $258,000    $  264,000   $  663,000
Government agencies and contractors......    330,000       938,000      823,000
                                            --------    ----------   ----------
                                             588,000     1,202,000    1,486,000
Allowance for doubtful accounts..........         --            --     (129,000)
                                            --------    ----------   ----------
    Accounts receivable, net.............   $588,000    $1,202,000   $1,357,000
                                            ========    ==========   ==========
</TABLE>

    Unbilled accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                DECEMBER 31,
                                           -----------------------   OCTOBER 11,
                                              1996         1997         1998
                                           ----------   ----------   -----------
<S>                                        <C>          <C>          <C>
Commercial clients.......................   $329,000    $  179,000   $  409,000
Government agencies and contractors......    343,000       642,000      412,000
                                            --------    ----------   ----------
    Unbilled accounts receivable.........   $672,000    $  821,000   $  821,000
                                            ========    ==========   ==========
</TABLE>

                                      F-77
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

4.  OTHER CURRENT ASSETS:

    Other current assets consists of the following:

<TABLE>
<CAPTION>
                                               DECEMBER 31,
                                         -------------------------   OCTOBER 11,
                                            1996          1997          1998
                                         -----------   -----------   -----------
<S>                                      <C>           <C>           <C>
Deferred income taxes..................  $    20,000   $    48,000   $   195,000
Income tax receivable..................       26,000            --       460,000
Other current assets...................       16,000        14,000        29,000
                                         -----------   -----------   -----------
    Total..............................  $    62,000   $    62,000   $   684,000
                                         ===========   ===========   ===========
</TABLE>

5.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                               DECEMBER 31,
                                         -------------------------   OCTOBER 11,
                                            1996          1997          1998
                                         -----------   -----------   -----------
<S>                                      <C>           <C>           <C>
Computers, equipment and software......  $ 1,709,000   $ 2,049,000   $ 2,218,000
Furniture and fixtures.................       40,000        50,000        51,000
Leasehold improvements.................      154,000       154,000       252,000
                                         -----------   -----------   -----------
                                           1,903,000     2,253,000     2,521,000
Accumulated depreciation and
  amortization.........................   (1,487,000)   (1,680,000)   (1,868,000)
                                         -----------   -----------   -----------
    Property and equipment, net........  $   416,000   $   573,000   $   653,000
                                         ===========   ===========   ===========
</TABLE>

6.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                               DECEMBER 31,
                                         -------------------------   OCTOBER 11,
                                            1996          1997          1998
                                         -----------   -----------   -----------
<S>                                      <C>           <C>           <C>
Accrued compensation and benefits......  $   293,000   $   914,000   $ 1,204,000
Income tax payable.....................           --       204,000            --
Deferred income taxes..................           --        76,000            --
Other accrued liabilities..............       45,000            --        90,000
                                         -----------   -----------   -----------
    Total..............................  $   338,000   $ 1,194,000   $ 1,294,000
                                         ===========   ===========   ===========
</TABLE>

7.  LEASES:

    The Company has entered into a noncancelable operating lease for real estate
that expires in 2005. Rental expense for the operating lease during the years
ended December 31, 1996 and 1997, and for the period from January 1, 1998 to
October 11, 1998, was $123,000, $127,000, and $109,000, respectively.

                                      F-78
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

    Future minimum lease payments under noncancelable operating leases are as
follows as of October 11, 1998:

<TABLE>
<S>                                                           <C>
Period ended December 31, 1998..............................  $   40,000
1999........................................................     195,000
2000........................................................     195,000
2001........................................................     195,000
2002........................................................     195,000
2003........................................................     195,000
Thereafter..................................................     263,000
                                                              ----------
    Total minimum lease payments............................  $1,278,000
                                                              ==========
</TABLE>

8.  SHORT-TERM BORROWING:

    The Company had a revolving line of credit that expired April 30, 1998,
which was secured by the accounts receivable of the Company. Under the terms of
the line of credit, borrowings were available up to a maximum borrowing of
$1,500,000. Interest on the outstanding balance was calculated at the bank's
prime rate plus one-half of one percent per annum, payable monthly. As of
December 31, 1996 and 1997, and October 11, 1998, there were no outstanding
amounts.

9.  NOTE PAYABLE:

    During 1995, the Company purchased a portion of a stockholder's shares for
$379,000, payable in three annual installments in January 1996, 1997 and 1998.
The Company placed $252,000 into an interest bearing escrow account during 1995
to satisfy the first two annual payments. The remaining balance was placed into
the escrow account during 1996. As of December 31, 1996 and 1997, and for the
period ended October 11, 1998, there was no outstanding balance on the note
payable.

10. RETIREMENT PLAN:

    The Company maintains a profit-sharing and retirement plan under the
provisions of section 401(k) of the Internal Revenue Code. The Plan provides for
contributions by employees and a discretionary contribution by the Company. The
plan is for the benefit of all employees who have attained the age of 21.
Participants may contribute up to 15 percent of their compensation, subject to
statutory limits. Employee contributions are fully vested. The Company's
contribution is discretionary and is determined by its Board of Directors.
Company contributions vest twenty percent per year over the five years, after
the first year. Company contributions totaled $125,000, $182,000 and $170,000
for the years ended December 31, 1996 and 1997, and for the period from
January 1, 1998 to October 11, 1998, respectively.

    Effective February 1, 1999, Century's employees are covered by AppNet's
401(k) plan.

11. STOCKHOLDER AGREEMENTS:

    During the year ended December 31, 1996, the Company established Class B
common stock. This Class B common stock has no voting rights. The Company gave
the holders of the Class A common stock the option of retaining their Class A
voting stock, converting their Class A voting stock to

                                      F-79
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

Class B stock or selling their Class A voting stock back to the Company. The
activity related to this program is presented in the statement of stockholders'
equity as stock conversion.

12. EMPLOYEE STOCK OPTION PLAN:

    The Company maintained a stock option plan for key employees. The issued
options expire no later than ten years from the date of the grant or when
employment ceases, whichever comes first.

    Options granted under the plan are accounted for pursuant to APB Opinion
No. 25, "Accounting for Stock Issued to Employees," and no compensation has been
recognized for the plan. Had compensation cost for the plan been determined
based on the estimated fair value of the options at the grant dates consistent
with the method of SFAS No. 123, pro forma net income (loss) would have been
approximately $354,000, $844,000 and $380,000 for the years ended December 31,
1996 and 1997, and for the period from January 1, 1998 to October 11, 1998. The
weighted-average fair value of the options granted during 1996, 1997, and during
the period from January 1, 1998 to October 11, 1998, is estimated to be $5.58,
$5.50 and $5.84, respectively, per option. All stock options were granted at
fair market value at the date of grant.

    The following summarizes option activity during 1996, 1997 and for the
period from January 1, 1998 to October 11, 1998:

<TABLE>
<CAPTION>
                                                    OPTIONS OUTSTANDING
                              ---------------------------------------------------------------
                                     1996                  1997            OCTOBER 11, 1998
                              -------------------   -------------------   -------------------
                              CLASS A    CLASS B    CLASS A    CLASS B    CLASS A    CLASS B
                              --------   --------   --------   --------   --------   --------
<S>                           <C>        <C>        <C>        <C>        <C>        <C>
Beginning of period.........       --     87,399     10,730     81,603     10,730     77,153
  Granted...................   10,730     21,604         --        540      5,000     10,490
  Exercised.................       --         --         --     (2,750)    (3,874)    (3,081)
  Expired...................       --    (27,400)        --     (2,240)        --       (260)
                               ------    -------     ------     ------     ------     ------
End of period...............   10,730     81,603     10,730     77,153     11,856     84,302
                               ======    =======     ======     ======     ======     ======
Exercisable at end of
  period....................       --     75,334     10,730     77,153     11,856     84,302
                               ======    =======     ======     ======     ======     ======
</TABLE>

<TABLE>
<CAPTION>
                                                       WEIGHTED AVERAGE EXERCISE PRICE
                                                   ---------------------------------------
                                                                               OCTOBER 11,
                                                     1996          1997           1998
                                                   --------      --------      -----------
<S>                                                <C>           <C>           <C>
Beginning of period..............................   $5.23         $5.52           $5.50
  Granted........................................    6.03          7.41            7.97
  Exercised......................................      --          6.03            6.26
  Expired........................................    5.19          6.03            7.41
                                                    -----         -----           -----
End of period....................................   $5.52         $5.50           $5.84
                                                    =====         =====           =====
Exercisable at end of period.....................   $5.58         $5.50           $5.84
                                                    =====         =====           =====
</TABLE>

13. INCOME TAXES:

    The Company follows the provisions of SFAS No. 109, "Accounting for Income
Taxes," for financial reporting purposes. Deferred tax assets or liabilities at
the end of each period are determined

                                      F-80
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

using the currently enacted tax rates to apply to taxable income in the period
in which the deferred tax asset or liability is expected to be settled or
realized.

    The components of the net deferred tax asset (liability) are as follows:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                               -------------------   OCTOBER 11,
                                                 1996       1997        1998
                                               --------   --------   -----------
<S>                                            <C>        <C>        <C>
Total deferred tax liabilities...............  $     --   $(76,000)   $ (67,000)
Total deferred tax assets....................    50,000     48,000      195,000
                                               --------   --------    ---------
Net deferred tax asset (liability)...........  $ 50,000   $(28,000)   $ 128,000
                                               ========   ========    =========
</TABLE>

    The sources of and differences between the financial accounting and tax
basis of Century Computing, Inc.'s assets and liabilities that give rise to the
net deferred tax asset (liability) are as follows:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                               -------------------   OCTOBER 11,
                                                 1996       1997        1998
                                               --------   --------   -----------
<S>                                            <C>        <C>        <C>
Deferred tax liabilities
  Software development costs.................  $     --   $     --    $ (21,000)
  Other......................................        --    (76,000)     (46,000)
                                               --------   --------    ---------
                                                     --    (76,000)     (67,000)
                                               ========   ========    =========
Deferred tax assets
  Depreciation and amortization..............    30,000     21,000       12,000
  Other......................................    20,000     27,000      183,000
                                               --------   --------    ---------
                                               $ 50,000   $ 48,000    $ 195,000
                                               ========   ========    =========
</TABLE>

    The components of the provision (benefit) for income taxes as of
December 31, 1996 and 1997, and October 11, 1998, are as follows:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                               -------------------   OCTOBER 11,
                                                 1996       1997        1998
                                               --------   --------   -----------
<S>                                            <C>        <C>        <C>
Federal income taxes:
  Current....................................  $250,000   $409,000    $   7,000
  Deferred...................................   (23,000)    64,000     (119,000)
State taxes..................................    52,000    107,000      (23,000)
                                               --------   --------    ---------
Provision (benefit) for income taxes.........  $279,000   $580,000    $(135,000)
                                               ========   ========    =========
</TABLE>

                                      F-81
<PAGE>
                            CENTURY COMPUTING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 11, 1998

    The tax provision (benefit) differed from the amounts computed at the
statutory rate, as follows:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                               -------------------   OCTOBER 11,
                                                 1996       1997        1998
                                               --------   --------   -----------
<S>                                            <C>        <C>        <C>
Federal income taxes at the U.S. statutory
  rate.......................................  $246,000   $510,000    $(134,000)
State taxes, net of federal benefit..........    34,000     70,000      (15,000)
Other........................................    (1,000)     --          14,000
                                               --------   --------    ---------
    Total....................................  $279,000   $580,000    $(135,000)
                                               ========   ========    =========
</TABLE>

14. ACQUISITION-RELATED COMPENSATION:

    In conjunction with AppNet Systems, Inc.'s purchase of Century, Century paid
an unconditional cash bonus of approximately $953,000 to certain employees for
past services.

                                      F-82
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To Research & Planning, Inc.:

    We have audited the accompanying balance sheets of Research &
Planning, Inc. (a Massachusetts corporation), as of December 31, 1996 and 1997,
and October 19, 1998, and the related statements of operations, stockholders'
equity, and cash flows for the years ended December 31, 1996 and 1997, and for
the period from January 1, 1998 to October 19, 1998. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of the Company as of
December 31, 1996 and 1997, and October 19, 1998, and the results of its
operations and its cash flows for the years ended December 31, 1996 and 1997,
and for the period from January 1, 1998 to October 19, 1998 in conformity with
generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
February 19, 1999

                                      F-83
<PAGE>
                           RESEARCH & PLANNING, INC.

                                 BALANCE SHEETS

            AS OF DECEMBER 31, 1996, AND 1997, AND OCTOBER 19, 1998

<TABLE>
<CAPTION>
                                                                DECEMBER 31,
                                                           -----------------------   OCTOBER 19,
                                                              1996         1997         1998
                                                           ----------   ----------   -----------
<S>                                                        <C>          <C>          <C>
ASSETS
Current assets:
  Cash and cash equivalents..............................  $   74,000   $   93,000   $  310,000
  Accounts receivable, net of allowance for doubtful
    accounts of $1,000, $15,000 and $40,000,
    respectively.........................................     865,000    1,374,000    1,407,000
  Other current assets...................................      73,000      137,000       30,000
                                                           ----------   ----------   ----------
    Total current assets.................................   1,012,000    1,604,000    1,747,000
Property and equipment, net..............................      97,000      262,000      457,000
                                                           ----------   ----------   ----------
    Total assets.........................................  $1,109,000   $1,866,000   $2,204,000
                                                           ==========   ==========   ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities:
  Short-term borrowing...................................  $       --   $  200,000   $       --
  Accounts payable.......................................      10,000       25,000      198,000
  Accrued liabilities....................................     116,000      301,000      457,000
                                                           ----------   ----------   ----------
    Total liabilities....................................     126,000      526,000      655,000
                                                           ----------   ----------   ----------
Commitments and contingencies (Note 6)
Stockholders' equity:
  Common stock, $0.10 par value; 100,000 authorized;
    11,111 shares issued; and 10,000 outstanding.........       1,000        1,000        1,000
  Less: Treasury stock, at cost--1,111 shares............     (11,000)     (11,000)     (11,000)
  Additional paid-in capital.............................      12,000       12,000       12,000
  Retained earnings......................................     981,000    1,338,000    1,547,000
                                                           ----------   ----------   ----------
    Total stockholders' equity...........................     983,000    1,340,000    1,549,000
                                                           ----------   ----------   ----------
    Total liabilities and stockholders' equity...........  $1,109,000   $1,866,000   $2,204,000
                                                           ==========   ==========   ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-84
<PAGE>
                           RESEARCH & PLANNING, INC.

                            STATEMENTS OF OPERATIONS

                FOR THE YEARS ENDED DECEMBER 31, 1996, AND 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 19, 1998

<TABLE>
<CAPTION>
                                                          FOR THE YEARS ENDED      FOR THE PERIOD
                                                             DECEMBER 31,         FROM JANUARY 1,
                                                        -----------------------       1998 TO
                                                           1996         1997      OCTOBER 19, 1998
                                                        ----------   ----------   ----------------
<S>                                                     <C>          <C>          <C>
Revenues..............................................  $3,329,000   $4,781,000      $5,303,000
Cost of revenues......................................   1,753,000    2,434,000       2,667,000
                                                        ----------   ----------      ----------
    Gross profit......................................   1,576,000    2,347,000       2,636,000
                                                        ----------   ----------      ----------
Operating expenses:
  Selling and marketing...............................      93,000       86,000         260,000
  General and administrative..........................     418,000      657,000         644,000
  Depreciation and amortization.......................      30,000       53,000          80,000
                                                        ----------   ----------      ----------
    Total operating expenses..........................     541,000      796,000         984,000
                                                        ----------   ----------      ----------
Income from operations................................   1,035,000    1,551,000       1,652,000
Interest income, net..................................       7,000       13,000          11,000
Other expense.........................................          --           --          99,000
                                                        ----------   ----------      ----------
Income before income taxes............................   1,042,000    1,564,000       1,564,000
Provision for income taxes............................       3,000       23,000          29,000
                                                        ----------   ----------      ----------
Net income............................................  $1,039,000   $1,541,000      $1,535,000
                                                        ==========   ==========      ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-85
<PAGE>
                           RESEARCH & PLANNING, INC.

                       STATEMENTS OF STOCKHOLDERS' EQUITY

               FOR THE YEARS ENDED DECEMBER 31, 1996, AND, 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 19, 1998

<TABLE>
<CAPTION>
                                                           COMMON STOCK                  ADDITIONAL                     TOTAL
                                                        -------------------   TREASURY    PAID- IN     RETAINED     STOCKHOLDERS'
                                                         SHARES     AMOUNT     STOCK      CAPITAL      EARNINGS        EQUITY
                                                        --------   --------   --------   ----------   -----------   -------------
<S>                                                     <C>        <C>        <C>        <C>          <C>           <C>
Balance, December 31, 1995............................   10,000     $1,000    $(11,000)   $12,000     $   604,000    $   606,000
  Distributions to stockholders.......................       --         --         --          --        (662,000)      (662,000)
  Net income..........................................       --         --         --          --       1,039,000      1,039,000
                                                         ------     ------    --------    -------     -----------    -----------
Balance, December 31, 1996............................   10,000      1,000    (11,000)     12,000         981,000        983,000
  Distributions to stockholders.......................       --         --         --          --      (1,184,000)    (1,184,000)
  Net income..........................................       --         --         --          --       1,541,000      1,541,000
                                                         ------     ------    --------    -------     -----------    -----------
Balance, December 31, 1997............................   10,000      1,000    (11,000)     12,000       1,338,000      1,340,000
  Distributions to stockholders.......................       --         --         --          --      (1,326,000)    (1,326,000)
  Net income..........................................       --         --         --          --       1,535,000      1,535,000
                                                         ------     ------    --------    -------     -----------    -----------
Balance, October 19, 1998.............................   10,000     $1,000    $(11,000)   $12,000     $ 1,547,000    $ 1,549,000
                                                         ======     ======    ========    =======     ===========    ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-86
<PAGE>
                           RESEARCH & PLANNING, INC.

                            STATEMENTS OF CASH FLOWS

                FOR THE YEARS ENDED DECEMBER 31, 1996 AND, 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO OCTOBER 19, 1998

<TABLE>
<CAPTION>
                                                           FOR THE YEARS ENDED      FOR THE PERIOD
                                                              DECEMBER 31,         FROM JANUARY 1,
                                                         -----------------------       1998 TO
                                                            1996         1997      OCTOBER 19, 1998
                                                         ----------   ----------   ----------------
<S>                                                      <C>          <C>          <C>
Cash flows from operating activities:
  Net income...........................................  $1,039,000   $1,541,000      $1,535,000
  Adjustments to reconcile net income to net cash
    provided by operating activities:
      Depreciation and amortization....................      30,000       53,000          80,000
      Change in assets and liabilities:
        Accounts receivable, net.......................    (308,000)    (509,000)        (33,000)
        Other current assets...........................     (45,000)     (64,000)        107,000
        Accounts payable...............................      (1,000)      15,000         173,000
        Accrued liabilities............................      70,000      185,000         156,000
                                                         ----------   ----------      ----------
          Net cash provided by operating activities....     785,000    1,221,000       2,018,000
                                                         ----------   ----------      ----------
Cash flows from investing activities:
  Purchase of property and equipment, net..............     (64,000)    (218,000)       (275,000)
                                                         ----------   ----------      ----------
Cash flows from financing activities:
  Net proceeds (repayments) under short-term
    borrowings.........................................          --      200,000        (200,000)
  Distributions to stockholders........................    (662,000)  (1,184,000)     (1,326,000)
                                                         ----------   ----------      ----------
          Net cash used in financing activities........    (662,000)    (984,000)     (1,526,000)
                                                         ----------   ----------      ----------
Net increase in cash and cash equivalents..............      59,000       19,000         217,000
Cash and cash equivalents, beginning of period.........      15,000       74,000          93,000
                                                         ----------   ----------      ----------
Cash and cash equivalents, end of period...............  $   74,000   $   93,000      $  310,000
                                                         ==========   ==========      ==========
Supplementary information:
  Cash paid for interest...............................  $       --   $       --      $    2,000
                                                         ==========   ==========      ==========
  Cash paid for income taxes...........................  $    3,000   $   23,000      $       --
                                                         ==========   ==========      ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-87
<PAGE>
                           RESEARCH & PLANNING, INC.

                         NOTES TO FINANCIAL STATEMENTS

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 19, 1998

1.  BUSINESS DESCRIPTION:

    Research & Planning, Inc. ("R&P" or the "Company") was incorporated in 1968,
under the laws of the state of Massachusetts. R&P is an information technology
services company providing Enterprise Resource Planning integration and support,
data warehousing, decision support applications and business-to-business
electronic commerce solutions. R&P is headquartered in Cambridge, Massachusetts
and operates primarily in the United States.

    On October 20, 1998, all of the issued and outstanding stock of the Company
was acquired by AppNet Systems, Inc. ("AppNet"). The Company incurred $99,000 of
expenses in conjunction with the sale to AppNet for accounting and consulting
fees. This has been classified in other expenses in the accompanying statements
of operations.

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                           <C>
Computers, equipment and software...........................  five years
Furniture and fixtures......................................  five years
</TABLE>

    Purchased software is capitalized and amortized principally over five years.
Leasehold improvements are amortized over the lesser of the estimated useful
life of the asset or the remaining lease term.

    In accordance with Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
Be Disposed Of," the Company reviews its recorded long-lived assets for
impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

                                      F-88
<PAGE>
                           RESEARCH & PLANNING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 19, 1998

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable and short-term borrowings. In
management's opinion, the carrying amounts of these financial instruments
approximated their fair values at December 31, 1996 and 1997, and October 19,
1998.

REVENUE RECOGNITION

    Revenues pursuant to fixed-fee contracts are recognized on the
percentage-of-completion method with costs and estimated profits recorded as
work is performed. Revenues from time and material contracts are recognized
based on fixed hourly rates for direct labor expended.

    Cost of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.

    Provisions for estimated losses on uncompleted contracts are made on a
contract by contract basis and are recognized in the period in which such losses
are determined. Changes in contract performance and estimated profitability,
including final contract settlements, may result in revisions to costs and
income and are recognized in the period in which revisions are determined.
Unbilled receivables on contracts are comprised of costs, plus earnings on
certain contracts in excess of contractual billings on such contracts.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                          REVENUES                       ACCOUNTS RECEIVABLE
                             ----------------------------------   ---------------------------------
                                   FOR THE
                                 YEAR ENDED          FOR THE             AS OF
                                DECEMBER 31,       PERIOD ENDED      DECEMBER 31,          AS OF
                             -------------------   OCTOBER 19,    -------------------   OCTOBER 19,
                               1996       1997         1998         1996       1997        1998
                             --------   --------   ------------   --------   --------   -----------
<S>                          <C>        <C>        <C>            <C>        <C>        <C>
Customer A.................    19%        28%           41%         18%        24%          44%
Customer B.................    *          16%           10%         *          17%         *
Customer C.................    15%        *           *             11%        *           *
Customer D.................    *          10%           13%         *          22%         *
Customer E.................    13%        *           *             *          *           *
Customer F.................    *          12%         *             *          *           *
</TABLE>

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

*   Represents less than 10% of total.

INCOME TAXES

    The Company, with the consent of its shareholders, has elected to be taxed
pursuant to Subchapter S of the Internal Revenue Code (an "S Corporation"). In
lieu of corporate income taxes, the shareholders of an S corporation are taxed
on their proportionate share of the Company's taxable income. Therefore, no
provision for federal income taxes has been included in the accompanying
financial statements.

                                      F-89
<PAGE>
                           RESEARCH & PLANNING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 19, 1998

RECENT ACCOUNTING PRONOUNCEMENTS

    In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position 98-1 ("SOP 98-1"), "Accounting for the
Cost of Computer Software Developed or Obtained for Internal Use". SOP 98-1 is
effective for financial statements for years beginning after December 15, 1998.
SOP 98-1 provides guidance on accounting for computer software developed or
obtained for internal use, including the requirement to capitalize specified
costs and the amortization of such costs. The Company does not expect the
adoption of this standard to have a material effect on the Company's
capitalization policy.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                 DECEMBER 31,
                                             ---------------------   OCTOBER 19,
                                               1996        1997         1998
                                             --------   ----------   -----------
<S>                                          <C>        <C>          <C>
Accounts receivable........................  $586,000   $  951,000   $1,084,000
Unbilled accounts receivable...............   280,000      438,000      363,000
Allowance for doubtful accounts............    (1,000)     (15,000)     (40,000)
                                             --------   ----------   ----------
    Accounts receivable, net...............  $865,000   $1,374,000   $1,407,000
                                             ========   ==========   ==========
</TABLE>

4.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                                 DECEMBER 31,
                                             ---------------------   OCTOBER 19,
                                               1996        1997         1998
                                             --------   ----------   -----------
<S>                                          <C>        <C>          <C>
Computers, equipment and software..........  $275,000   $  385,000   $  507,000
Furniture and fixtures.....................   114,000      222,000      375,000
                                             --------   ----------   ----------
                                              389,000      607,000      882,000
Accumulated depreciation and
  amortization.............................  (292,000)    (345,000)    (425,000)
                                             --------   ----------   ----------
    Property and equipment, net............  $ 97,000   $  262,000   $  457,000
                                             ========   ==========   ==========
</TABLE>

5.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                                  DECEMBER 31,
                                               -------------------   OCTOBER 19,
                                                 1996       1997        1998
                                               --------   --------   -----------
<S>                                            <C>        <C>        <C>
Accrued compensation and benefits............  $ 54,000   $113,000     $289,000
Accrued dividends............................    39,000     86,000           --
Deposits.....................................        --     54,000       73,000
Other........................................    23,000     48,000       95,000
                                               --------   --------     --------
    Total....................................  $116,000   $301,000     $457,000
                                               ========   ========     ========
</TABLE>

                                      F-90
<PAGE>
                           RESEARCH & PLANNING, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                DECEMBER 31, 1996 AND 1997, AND OCTOBER 19, 1998

6.  LEASES:

    The Company has noncancelable operating leases, primarily for real estate,
that expire over the next five years. Rental expense for operating leases during
the years ended December 31, 1996 and 1997, and for the period from January 1,
1998 to October 19, 1998, was $77,000, $185,000 and $300,000, respectively.

    Future minimum lease payments under noncancelable operating leases are as
follows as of October 19, 1998:

<TABLE>
<S>                                                           <C>
Period ended December 31, 1998..............................  $  102,000
1999........................................................     410,000
2000........................................................     410,000
2001........................................................     391,000
2002........................................................     332,000
2003........................................................     332,000
Thereafter..................................................     332,000
                                                              ----------
    Total future minimum lease payments.....................  $2,309,000
                                                              ==========
</TABLE>

7.  SUBLEASE INCOME:

    The Company subleases certain portions of their leased buildings. These
subleases extend over varying dates through September 2000. For the years ended
December 31, 1996 and 1997, and for the period from January 1, 1998 to
October 19, 1998, the Company earned $17,000, $46,000 and $153,000,
respectively, in sublease income, which is included in general and
administrative expenses as an offset to lease expense in the accompanying
statements of operations.

8.  SHORT-TERM BORROWING:

    The Company has a line of credit which expired on October 19, 1998, and was
collateralized by substantially all of the assets of the Company and was
guaranteed by the stockholders of the Company. Under the terms of the line of
credit, borrowings are limited to $200,000. Interest on the outstanding balance
was calculated as the Bank's prime rate plus 1.50 percent. As of December 31,
1996 and 1997, and October 19, 1998, there were borrowings under the line of
credit totaling $0, $200,000, and $0, respectively.

9.  RETIREMENT PLAN:

    The Company maintained a profit-sharing and retirement plan under the
provisions of section 401(k) of the Internal Revenue Code. The Plan provided for
contributions by employees and a discretionary contribution by the Company as
determined by the Board of Directors. The plan was for the benefit of all
employees who had completed one year of service or 1,000 hours and had full-time
status. Participants could contribute up to 15 percent of their compensation,
subject to statutory limits. Employee contributions fully vest immediately upon
contribution. Company contributions vested fully after five years. Company
contributions totaled $66,000, $82,000, and $85,000 for the years ended
December 31, 1996 and 1997, and for the period from January 1, 1998 to
October 19, 1998, respectively. Effective February 1, 1999, Research and
Planning, Inc. employees are covered by the AppNet 401(k) plan.

                                      F-91
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To The Kodiak Group, Inc.:

    We have audited the accompanying balance sheets of The Kodiak Group, Inc. (a
Massachusetts corporation), as of December 31, 1997, and December 13, 1998, and
the related statements of operations, stockholders' equity, and cash flows for
the year ended December 31, 1997, and for the period from January 1, 1998 to
December 13, 1998. These financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of The Kodiak Group, Inc. as of
December 31, 1997, and December 13, 1998, and the results of its operations and
its cash flows for the year ended December 31, 1997, and for the period from
January 1, 1998 to December 13, 1998 in conformity with generally accepted
accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
February 19, 1999

                                      F-92
<PAGE>
                             THE KODIAK GROUP, INC.

                                 BALANCE SHEETS

                 AS OF DECEMBER 31, 1997 AND DECEMBER 13, 1998

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   DECEMBER 13,
                                                                  1997           1998
                                                              ------------   ------------
<S>                                                           <C>            <C>
ASSETS
Current assets:
  Cash and cash equivalents.................................   $  300,000     $       --
  Accounts receivable, net of allowance for doubtful
    accounts of $39,000 and $97,000, respectively...........      768,000      1,247,000
  Other current assets......................................       18,000         48,000
                                                               ----------     ----------
    Total current assets....................................    1,086,000      1,295,000
Property and equipment, net.................................      278,000        319,000
Other assets................................................       12,000         72,000
                                                               ----------     ----------
    Total assets............................................   $1,376,000     $1,686,000
                                                               ==========     ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................   $   50,000     $   61,000
  Accrued liabilities.......................................      113,000        845,000
  Current portion of long-term debt.........................       49,000             --
  Current portion of capital lease obligation...............       18,000         23,000
                                                               ----------     ----------
    Total current liabilities...............................      230,000        929,000
Long-term debt, net of current portion......................       32,000             --
Capital lease obligation, net of current portion............       39,000         16,000
                                                               ----------     ----------
    Total liabilities.......................................      301,000        945,000
                                                               ----------     ----------
Commitments and contingencies (Note 6)
Stockholders' equity:
  Common stock, $.01 par value; 1,000 shares authorized; 400
    shares issued and outstanding...........................           --             --
  Additional paid-in capital................................        4,000          4,000
  Retained earnings.........................................    1,071,000        737,000
                                                               ----------     ----------
    Total stockholders' equity..............................    1,075,000        741,000
                                                               ----------     ----------
    Total liabilities and stockholders' equity..............   $1,376,000     $1,686,000
                                                               ==========     ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-93
<PAGE>
                             THE KODIAK GROUP, INC.

                            STATEMENTS OF OPERATIONS

                     FOR THE YEAR ENDED DECEMBER 31, 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO DECEMBER 13, 1998

<TABLE>
<CAPTION>
                                                                             FOR THE PERIOD
                                                              FOR THE YEAR   FROM JANUARY 1,
                                                                 ENDED           1998 TO
                                                              DECEMBER 31,    DECEMBER 13,
                                                                  1997            1998
                                                              ------------   ---------------
<S>                                                           <C>            <C>
Revenues....................................................   $3,687,000      $6,289,000
Cost of revenues............................................    2,065,000       3,221,000
                                                               ----------      ----------
    Gross profit............................................    1,622,000       3,068,000
                                                               ----------      ----------
Operating expenses:
  Selling and marketing.....................................       48,000          66,000
  General and administrative................................    1,061,000       1,691,000
  Acquisition related compensation..........................           --         250,000
  Depreciation and amortization.............................      136,000         136,000
                                                               ----------      ----------
    Total operating expenses................................    1,245,000       2,143,000
                                                               ----------      ----------
Income from operations......................................      377,000         925,000
Interest expense, net.......................................        5,000           2,000
Other expense, net..........................................           --           8,000
                                                               ----------      ----------
Income before income taxes..................................      372,000         915,000
Provision for income taxes..................................        1,000           5,000
                                                               ----------      ----------
Net income..................................................   $  371,000      $  910,000
                                                               ==========      ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-94
<PAGE>
                             THE KODIAK GROUP, INC.

                       STATEMENTS OF STOCKHOLDERS' EQUITY

                     FOR THE YEAR ENDED DECEMBER 31, 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO DECEMBER 13, 1998

<TABLE>
<CAPTION>
                                                COMMON STOCK       ADDITIONAL                     TOTAL
                                             -------------------    PAID-IN      RETAINED     STOCKHOLDERS'
                                              SHARES     AMOUNT     CAPITAL      EARNINGS        EQUITY
                                             --------   --------   ----------   -----------   -------------
<S>                                          <C>        <C>        <C>          <C>           <C>
Balance, December 31, 1996.................    400        $ --       $4,000     $   740,000    $   744,000
  Distributions to stockholders............     --          --           --         (40,000)       (40,000)
  Net income...............................     --          --           --         371,000        371,000
                                               ---        ----       ------     -----------    -----------
Balance, December 31, 1997.................    400          --        4,000       1,071,000      1,075,000
  Distributions to stockholders............     --          --           --      (1,244,000)    (1,244,000)
  Net income...............................     --          --           --         910,000        910,000
                                               ---        ----       ------     -----------    -----------
Balance, December 13, 1998.................    400        $ --       $4,000     $   737,000    $   741,000
                                               ===        ====       ======     ===========    ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-95
<PAGE>
                             THE KODIAK GROUP, INC.

                            STATEMENTS OF CASH FLOWS

                     FOR THE YEAR ENDED DECEMBER 31, 1997,
          AND FOR THE PERIOD FROM JANUARY 1, 1998 TO DECEMBER 13, 1998

<TABLE>
<CAPTION>
                                                                             FOR THE PERIOD
                                                              FOR THE YEAR   FROM JANUARY 1,
                                                                 ENDED           1998 TO
                                                              DECEMBER 31,    DECEMBER 13,
                                                                  1997            1998
                                                              ------------   ---------------
<S>                                                           <C>            <C>
Cash flows from operating activities:
  Net income................................................   $ 371,000        $   910,000
  Adjustments to reconcile net income to net cash provided
    by operating activities--
      Depreciation and amortization.........................     136,000            136,000
      Loss on fixed asset disposals.........................          --              7,000
      Change in assets and liabilities:
        Accounts receivable, net............................     (50,000)          (479,000)
        Other assets........................................      (4,000)           (90,000)
        Accounts payable....................................     (12,000)            11,000
        Accrued liabilities.................................      16,000            732,000
                                                               ---------        -----------
          Net cash provided by operating activities.........     457,000          1,227,000
                                                               ---------        -----------
Cash flows from investing activities:
  Purchase of property and equipment, net...................    (177,000)          (184,000)
                                                               ---------        -----------
Cash flows from financing activities:
  Proceeds from long-term debt..............................     118,000                 --
  Repayments of long-term debt..............................     (96,000)           (81,000)
  Repayments on capital lease obligations...................     (55,000)           (18,000)
  Distributions to stockholders.............................     (40,000)        (1,244,000)
                                                               ---------        -----------
          Net cash used in financing activities.............     (73,000)        (1,343,000)
                                                               ---------        -----------
Net increase (decrease) in cash and cash equivalents........     207,000           (300,000)
Cash and cash equivalents, beginning of period..............      93,000            300,000
                                                               ---------        -----------
Cash and cash equivalents, end of period....................   $ 300,000        $        --
                                                               =========        ===========
Supplementary information:
  Cash paid for interest....................................   $  16,000        $    11,000
                                                               =========        ===========
  Cash paid for income taxes................................   $   1,000        $        --
                                                               =========        ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      F-96
<PAGE>
                             THE KODIAK GROUP, INC.

                         NOTES TO FINANCIAL STATEMENTS

                    DECEMBER 31, 1997 AND DECEMBER 13, 1998

1.  BUSINESS DESCRIPTION:

    The Kodiak Group, Inc. ("Kodiak" or the "Company") was incorporated in 1994,
under the laws of the state of Massachusetts. Kodiak is an electronic commerce
services company which provides electronic data interchange ("EDI") integration
and processing services to clients who are looking to create, maintain or expand
their EDI systems. Kodiak is headquartered in Pittsfield, Massachusetts and
operates primarily in the Northeast.

    On December 13, 1998, all of the issued and outstanding stock of the Company
was acquired by AppNet Systems, Inc. ("AppNet").

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change, government
regulations and the Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                        <C>
Computers, equipment and software........................  three to five years
Furniture and fixtures...................................  five years
</TABLE>

    Purchased software and third-party costs incurred to develop software for
internal use are capitalized and amortized principally over three years.
Leasehold improvements are amortized over the lesser of the estimated useful
life of the asset or the remaining lease term.

    In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded long-lived assets
for impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

                                      F-97
<PAGE>
                             THE KODIAK GROUP, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1997 AND DECEMBER 13, 1998

SOFTWARE DEVELOPMENT COSTS

    The Company has capitalized costs related to the development of certain
software products. In accordance with SFAS No. 86, "Accounting for the Costs of
Computer Software to Be Sold, Leased, or Otherwise Marketed," capitalization of
costs begins when technological feasibility has been established and ends when
the product is available for general release to customers. Amortization will be
computed and recognized based on the products' estimated economic lives of three
years. Capitalized costs and amortization periods are management's estimates and
may have to be modified due to inherent technological changes in software
development.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable, and capital lease
obligations. In management's opinion, the carrying amounts of these financial
instruments approximated their fair values at December 31, 1997, and
December 13, 1998.

REVENUE RECOGNITION

    Revenues from time and material contracts are recognized based on fixed
hourly rates for direct labor hours expended. Revenues from fixed-price
contracts are recognized on the percentage-of-
completion method, with costs and estimated profits recorded as work is
performed.

    Cost of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.
Provisions for estimated losses on uncompleted contracts are made in the period
in which such losses are determined. Changes in contract performance and
estimated profitability, including final contract settlements, may result in
revisions to costs and income and are recognized in the period in which the
revisions are determined. Unbilled receivables on contracts are comprised of
costs, plus earnings on certain contracts in excess of contractual billings on
such contracts. Cash received in excess of costs incurred is classified as
deferred revenue.

    Revenues from software sales are recognized when the related product is
sold, provided no significant vendor obligations remain.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                                     REVENUES                        ACCOUNTS RECEIVABLE
                                     -----------------------------------------   ---------------------------
                                     FOR THE YEAR ENDED   FOR THE PERIOD ENDED      AS OF          AS OF
                                        DECEMBER 31,          DECEMBER 13,       DECEMBER 31,   DECEMBER 13,
                                            1997                  1998               1997           1998
                                     ------------------   --------------------   ------------   ------------
<S>                                  <C>                  <C>                    <C>            <C>
Customer A.........................          52%                  32%                 62%            13%
Customer B.........................       *                       28%               *                43%
Customer C.........................       *                       14%               *                23%
</TABLE>

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

*   Represents less than 10% of total

                                      F-98
<PAGE>
                             THE KODIAK GROUP, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1997 AND DECEMBER 13, 1998

INCOME TAXES

    The Company, with the consent of its shareholders, has elected to be taxed
pursuant to subchapter S of the Internal Revenue Code (an "S corporation"). In
lieu of corporation income taxes, the shareholders of an S corporation are taxed
on their proportionate share of the Company's taxable income. Therefore, no
provision for federal income taxes has been included in the accompanying
financial statements.

RECENT ACCOUNTING PRONOUNCEMENTS

    In March 1998, AIPCA issued Statement of Position 98-4 ("SOP 98-4"),
"Deferral of the Effective Date of a Provision of SOP 97-2." SOP 98-4 defers for
one year the application of certain provisions of Statement of Position 97-2
("SOP 97-2"), "Software Revenue Recognition." Different informal and
unauthoritative interpretations of certain provisions of SOP 97-2 have arisen
and, as a result, the AICPA is deliberating amendments to SOP 97-2, so it can
issue interpretations regarding the applicability and the method of application
of those provisions. The Company does not expect the adoption of this standard
to have a material effect on the Company's results of operations, financial
position, or cash flows.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                      DECEMBER 31,   DECEMBER 13,
                                                          1997           1998
                                                      ------------   ------------
<S>                                                   <C>            <C>
Accounts receivable.................................    $613,000      $1,077,000
Unbilled accounts receivable........................     194,000         267,000
Allowance for doubtful accounts.....................     (39,000)        (97,000)
                                                        --------      ----------
    Accounts receivable, net........................    $768,000      $1,247,000
                                                        ========      ==========
</TABLE>

4.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                                      DECEMBER 31,   DECEMBER 13,
                                                          1997           1998
                                                      ------------   ------------
<S>                                                   <C>            <C>
Computers, equipment and software...................    $ 398,000      $ 508,000
Furniture and fixtures..............................      138,000        199,000
Leasehold improvements..............................       25,000         28,000
                                                        ---------      ---------
                                                          561,000        735,000
Accumulated depreciation and amortization...........     (283,000)      (416,000)
                                                        ---------      ---------
    Property and equipment, net.....................    $ 278,000      $ 319,000
                                                        =========      =========
</TABLE>

                                      F-99
<PAGE>
                             THE KODIAK GROUP, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1997 AND DECEMBER 13, 1998

5.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                                      DECEMBER 31,   DECEMBER 13,
                                                          1997           1998
                                                      ------------   ------------
<S>                                                   <C>            <C>
Accrued compensation and benefits...................    $ 39,000       $406,000
Accrued professional fees...........................      29,000        131,000
Deferred revenue....................................      42,000        107,000
Other accrued liabilities...........................       3,000        201,000
                                                        --------       --------
                                                        $113,000       $845,000
                                                        ========       ========
</TABLE>

6.  LEASES:

    The Company has noncancelable operating leases, primarily for real estate,
that expire over the next three years. Rental expense for operating leases
during the year ended December 31, 1997, and for the period from January 1, 1998
to December 13, 1998, was $77,000, and $105,000, respectively.

    The Company leases certain equipment under a capital lease.

    Future minimum lease payments under the capital lease and noncancelable
operating leases are as follows as of December 13, 1998:

<TABLE>
<CAPTION>
                                                           CAPITAL    OPERATING
                                                            LEASES     LEASES
                                                           --------   ---------
<S>                                                        <C>        <C>
Period ended December 31, 1998...........................  $ 2,000    $  7,000
1999.....................................................   26,000     160,000
2000.....................................................   14,000     153,000
2001.....................................................       --      59,000
                                                           -------    --------
    Total future minimum lease payments..................   42,000    $379,000
                                                           -------    ========
Less: Amount representing interest.......................   (3,000)
                                                           -------
Present value of capital lease obligation................   39,000
Less: Current portion of capital lease obligation........  (23,000)
                                                           -------
Long-term portion of capital lease obligation............  $16,000
                                                           =======
</TABLE>

    Equipment under the capital lease is summarized as follows:

<TABLE>
<CAPTION>
                                                      DECEMBER 31,   DECEMBER 13,
                                                          1997           1998
                                                      ------------   ------------
<S>                                                   <C>            <C>
Computer equipment..................................    $ 84,000       $ 84,000
Less: Accumulated amortization......................     (47,000)       (75,000)
                                                        --------       --------
    Total...........................................    $ 37,000       $  9,000
                                                        ========       ========
</TABLE>

                                     F-100
<PAGE>
                             THE KODIAK GROUP, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                    DECEMBER 31, 1997 AND DECEMBER 13, 1998

7.  SHORT-TERM BORROWINGS:

    The Company had a line of credit, which expired in October 1998. The line of
credit was collateralized by substantially all of the assets of the Company.
Under the terms of the line of credit, borrowings were limited to $80,000.
Interest on the outstanding balance was calculated at the Bank's prime rate plus
1.75 percent. There were no borrowings under the line of credit during the year
ended December 31, 1997, or the period from January 1, 1998 through
October 1998.

8.  DEBT:

    Debt consists of the following:

<TABLE>
<CAPTION>
                                                      DECEMBER 31,   DECEMBER 13,
                                                          1997           1998
                                                      ------------   ------------
<S>                                                   <C>            <C>
Note payable, due October 30, 1999 bears interest at
  9.25 percent, payable in 24 installments of
  $4,083, secured by capital assets.................    $ 81,000        $    --
Less: Current maturities............................     (49,000)            --
                                                        --------        -------
    Long-term debt, net of current portion..........    $ 32,000        $    --
                                                        ========        =======
</TABLE>

    This loan was paid in full in November 1998. Kodiak has not entered into any
additional loan agreements with outside parties.

9.  RETIREMENT PLAN:

    The Company maintains a profit-sharing and retirement plan under the
provisions of section 401(k) of the Internal Revenue Code. The Plan provides for
contributions by employees and a discretionary contribution by the Company. The
plan is for the benefit of all employees who have reached one year of service.
Participants may contribute up to 12 percent of their compensation, subject to
statutory limits. Employee contributions are fully vested. The Company's
contribution is discretionary and is determined by its Board of Directors. In
1997 and 1998, the discretionary rate was 3 percent of gross salary. Company
contributions vest at a rate of 25 percent a year, beginning in the employee's
first eligible year. Company contributions totaled $39,000, and $51,000 for the
year ended December 31, 1997, and for the period from January 1, 1998 to
December 13, 1998, respectively.

    Effective February 1, 1999, Kodiak employees are covered by the AppNet
401(k) Plan.

                                     F-101
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To i33 Communications Corporation:

    We have audited the accompanying balance sheets of i33 Communications
Corporation (a Delaware corporation), as of December 31, 1996, 1997, and 1998,
and the related statements of operations, stockholders' equity (deficit), and
cash flows for the years then ended. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of i33 Communications
Corporation as of December 31, 1996, 1997, and 1998, and the results of its
operations and its cash flows for the years then ended in conformity with
generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
February 23, 1999

                                     F-102
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                                 BALANCE SHEETS

                    AS OF DECEMBER 31, 1996, 1997, AND 1998

<TABLE>
<CAPTION>
                                                                1996       1997        1998
                                                              --------   --------   ----------
<S>                                                           <C>        <C>        <C>
ASSETS
Current assets:
  Cash and cash equivalents.................................  $  1,000   $ 23,000   $    1,000
  Accounts receivable, net of allowance for doubtful
    accounts of $0, $86,000 and $417,000, respectively......   444,000    541,000    1,741,000
  Other current assets......................................     1,000      1,000       12,000
                                                              --------   --------   ----------
    Total current assets....................................   446,000    565,000    1,754,000
Property and equipment, net.................................   124,000    262,000      568,000
Other assets................................................        --      7,000       12,000
                                                              --------   --------   ----------
    Total assets............................................  $570,000   $834,000   $2,334,000
                                                              ========   ========   ==========
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
  Short-term borrowings.....................................  $     --   $     --   $  500,000
  Accounts payable..........................................    39,000    250,000    1,076,000
  Accrued liabilities.......................................   292,000    356,000    1,082,000
  Current portion of long-term debt.........................   104,000         --           --
  Current portion of capital lease obligations..............     3,000     24,000       41,000
                                                              --------   --------   ----------
    Total current liabilities...............................   438,000    630,000    2,699,000
Capital lease obligations, net of current portion...........     7,000     21,000       15,000
                                                              --------   --------   ----------
    Total liabilities.......................................   445,000    651,000    2,714,000
                                                              --------   --------   ----------
Commitments and contingencies (Note 6)
Stockholders' equity (deficit):
  Common stock, no par value; 100 shares authorized; issued
    and outstanding.........................................     1,000      1,000        1,000
  Retained earnings (accumulated deficit)...................   124,000    182,000     (381,000)
                                                              --------   --------   ----------
    Total stockholders' equity (deficit)....................   125,000    183,000     (380,000)
                                                              --------   --------   ----------
    Total liabilities and stockholders' equity (deficit)....  $570,000   $834,000   $2,334,000
                                                              ========   ========   ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                     F-103
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                            STATEMENTS OF OPERATIONS

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1997, AND 1998

<TABLE>
<CAPTION>
                                                               1996        1997         1998
                                                             --------   ----------   ----------
<S>                                                          <C>        <C>          <C>
Revenues...................................................  $980,000   $2,266,000   $4,360,000
Cost of revenues...........................................   524,000      982,000    2,251,000
                                                             --------   ----------   ----------
    Gross profit...........................................   456,000    1,284,000    2,109,000
                                                             --------   ----------   ----------
Operating expenses:
  Selling and marketing....................................    41,000      471,000      985,000
  General and administrative...............................   173,000      550,000    1,343,000
  Depreciation.............................................    12,000       45,000      114,000
                                                             --------   ----------   ----------
    Total operating expenses...............................   226,000    1,066,000    2,442,000
                                                             --------   ----------   ----------
Income (loss) from operations..............................   230,000      218,000     (333,000)
Other expense..............................................        --           --       35,000
Interest expense, net......................................        --       (1,000)      11,000
                                                             --------   ----------   ----------
Income (loss) before income taxes..........................   230,000      217,000     (379,000)
Provision (benefit) for income taxes.......................   106,000      159,000      (34,000)
                                                             --------   ----------   ----------
Net income (loss)..........................................  $124,000   $   58,000   $ (345,000)
                                                             ========   ==========   ==========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                     F-104
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                  STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1997, AND 1998

<TABLE>
<CAPTION>
                                                                            RETAINED          TOTAL
                                                      COMMON STOCK          EARNINGS      STOCKHOLDERS'
                                                   -------------------    (ACCUMULATED       EQUITY
                                                    SHARES     AMOUNT       DEFICIT)        (DEFICIT)
                                                   --------   --------   --------------   -------------
<S>                                                <C>        <C>        <C>              <C>
Balance, January 1, 1996.........................     --       $   --      $      --        $      --
  Issuance of 100 shares of common stock.........    100        1,000             --            1,000
  Net income.....................................     --           --        124,000          124,000
                                                     ---       ------      ---------        ---------
Balance, December 31, 1996.......................    100        1,000        124,000          125,000
  Net income.....................................     --           --         58,000           58,000
                                                     ---       ------      ---------        ---------
Balance, December 31, 1997.......................    100        1,000        182,000          183,000
  Distributions to stockholders..................     --           --       (218,000)        (218,000)
  Net loss.......................................     --           --       (345,000)        (345,000)
                                                     ---       ------      ---------        ---------
Balance, December 31, 1998.......................    100       $1,000      $(381,000)       $(380,000)
                                                     ===       ======      =========        =========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                     F-105
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                            STATEMENTS OF CASH FLOWS

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1997, AND 1998

<TABLE>
<CAPTION>
                                                               1996       1997         1998
                                                             --------   ---------   -----------
<S>                                                          <C>        <C>         <C>
Cash flows from operating activities:
  Net income (loss)........................................  $124,000   $  58,000   $  (345,000)
  Adjustments to reconcile net income (loss) to net cash
    provided by operating activities--
      Depreciation.........................................    12,000      45,000       114,000
      Deferred income taxes................................   106,000     133,000       (45,000)
      Change in assets and liabilities:
        Accounts receivable, net...........................  (444,000)    (97,000)   (1,200,000)
        Other assets.......................................        --      (7,000)      (16,000)
        Accounts payable...................................    39,000     211,000       826,000
        Accrued liabilities................................   186,000     (69,000)      771,000
                                                             --------   ---------   -----------
          Net cash provided by operating activities........    23,000     274,000       105,000
                                                             --------   ---------   -----------
Cash flows used in investing activities:
  Purchase of property and equipment, net..................  (125,000)   (140,000)     (362,000)
                                                             --------   ---------   -----------
Cash flows from financing activities:
  Proceeds from short-term borrowings......................        --          --       500,000
  Proceeds from long-term debt.............................   104,000          --            --
  Payments on capital lease obligations....................    (1,000)   (112,000)      (47,000)
  Distributions to stockholders............................        --          --      (218,000)
                                                             --------   ---------   -----------
          Net cash provided by (used in) financing
            activities.....................................   103,000    (112,000)      235,000
                                                             --------   ---------   -----------
Net increase (decrease) in cash and cash equivalents.......     1,000      22,000       (22,000)
Cash and cash equivalents, beginning of year...............        --       1,000        23,000
                                                             --------   ---------   -----------
Cash and cash equivalents, end of year.....................  $  1,000   $  23,000   $     1,000
                                                             ========   =========   ===========
Supplementary information:
  Cash paid for interest...................................  $     --   $  13,000   $    11,000
                                                             ========   =========   ===========
  Cash paid for income taxes...............................  $     --   $   1,000   $     5,000
                                                             ========   =========   ===========
Non-cash financing and investing activities:
  Property capital lease additions.........................  $ 11,000   $  42,000   $    59,000
                                                             ========   =========   ===========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                     F-106
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

                       DECEMBER 31, 1996, 1997, AND 1998

1.  BUSINESS DESCRIPTION:

    i33 Communications Corporation ("i33" or the "Company") was incorporated in
January 1996, under the laws of the state of Delaware. The Company is an
interactive agency specializing in strategy, design, technology and online
advertising management for mid-sized to large companies. Revenues are generated
from web site design and development, online media buying and planning, online
advertising management, site audits, web publishing and project management
tools, custom application and database development and hosting services. i33 is
headquartered and operates primarily in New York.

    On January 8, 1999, all of the issued and outstanding stock of the Company
was acquired by AppNet Systems, Inc. The Company incurred $35,000 in consulting
fees in conjunction with the sale to AppNet. This has been classified as other
expense in the accompanying statements of operations.

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    The Company considers all highly liquid investments with original maturities
of three months or less to be cash equivalents.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                           <C>
Computer equipment..........................................  five years
Furniture and fixtures......................................  seven years
</TABLE>

    Purchased software for internal use is capitalized and amortized principally
over three years. Leasehold improvements are amortized over the lesser of the
estimated useful life of the asset or the remaining lease term.

    In accordance with Statement of Financial Accounting Standards No. 121
("SFAS"), "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded long-lived assets
for impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

                                     F-107
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                       DECEMBER 31, 1996, 1997, AND 1998

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash and cash
equivalents, accounts receivable, accounts payable, short-term borrowings, and
capital lease obligations. In management's opinion, the carrying amounts of
these financial instruments approximated their fair values at December 31, 1996,
1997, and 1998.

REVENUE RECOGNITION

    Revenues from time and material contracts are recognized based on fixed
hourly rates for direct labor hours expended. Revenues from fixed-price
contracts are recognized on the percentage-of-
']completion method, with costs and estimated profits recorded as work is
performed. Revenues from fixed-price advertising contracts in which the Company
delivers advertising impressions for its customers on third-party websites are
recognized ratably over the period the advertising impressions are delivered. In
accordance with industry practice, the cost of third-party advertising placed by
the Company on behalf of its clients is offset against the related customer
reimbursement in the accompanying statements of operations.

    Cost of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.
Provisions for estimated losses on uncompleted contracts are made in the period
in which such losses are determined. Changes in contract performance and
estimated profitability, including final contract settlements, may result in
revisions to costs and income and are recognized in the period in which the
revisions are determined. Unbilled receivables on contracts are comprised of
costs, plus earnings on certain contracts in excess of contractual billings on
such contracts. Cash received in excess of costs incurred is classified as
deferred revenue.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and receivables from clients in
excess of 10% of total revenues and receivables:

<TABLE>
<CAPTION>
                                                   REVENUES
                                                   FOR THE                          ACCOUNTS
                                                 YEARS ENDED                       RECEIVABLE
                                                 DECEMBER 31,                  AS OF DECEMBER 31,
                                        ------------------------------   ------------------------------
                                          1996       1997       1998       1996       1997       1998
                                        --------   --------   --------   --------   --------   --------
<S>                                     <C>        <C>        <C>        <C>        <C>        <C>
Customer A............................    *          *          *          *          *          20%
Customer B............................    *          *          *          *          *          12%
Customer C............................    *          *          10%        *          *          16%
Customer D............................    *          14%        *          *          16%        *
Customer E............................    *          13%        *          *          *          *
Customer F............................    *          11%        *          *          *          *
Customer G............................    25%        *          *          50%        14%        *
Customer H............................    11%        *          *          12%        *          *
</TABLE>

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

*   Represents less than 10% of total.

                                     F-108
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                       DECEMBER 31, 1996, 1997, AND 1998

INCOME TAXES

    In 1996, the Company was taxed as a C corporation. As such, income taxes are
accounted for using an asset and liability approach that requires the
recognition of taxes payable or refundable for the current year and deferred tax
liabilities and assets for the future tax consequences of events that have been
recognized in the Company's financial statements or tax returns. The measurement
of current and deferred tax liabilities and assets are based on provisions of
the enacted tax law; the effects of future changes in tax laws or rates are not
anticipated. The measurement of deferred tax assets is reduced, if necessary, by
the amount of any tax benefits that, based on available evidence, are not
expected to be realized.

    In 1997 and 1998, the Company, with the consent of its shareholders, has
elected to be taxed pursuant to subchapter S of the Internal Revenue Code ("an S
corporation"). In lieu of corporation income taxes, the shareholders of an S
corporation are taxed on their proportionate share of the Company's taxable
income. Therefore, no provision for federal income taxes has been included in
the accompanying financial statements. The Company is subject to state and city
income taxes based on the Company's taxable income and alternative minimum tax.
The recorded tax provision for 1997 and 1998 relates to these state and city
taxes. The significant components of differences between income reported for
financial statement purposes and income reported for tax purposes relates to tax
basis adjustments for accounts receivable, payroll and corporate tax
liabilities.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<CAPTION>
                                                        DECEMBER 31,
                                              --------------------------------
                                                1996       1997        1998
                                              --------   --------   ----------
<S>                                           <C>        <C>        <C>
Accounts receivable.........................  $444,000   $599,000   $2,009,000
Unbilled accounts receivable................        --     28,000      149,000
Allowance for doubtful accounts.............        --    (86,000)    (417,000)
                                              --------   --------   ----------
    Accounts receivable, net................  $444,000   $541,000   $1,741,000
                                              ========   ========   ==========
</TABLE>

4.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<CAPTION>
                                                        DECEMBER 31,
                                              --------------------------------
                                                1996       1997        1998
                                              --------   --------   ----------
<S>                                           <C>        <C>        <C>
Computer equipment..........................  $ 79,000   $169,000   $  474,000
Furniture and fixtures......................    44,000    112,000      131,000
Leasehold improvements......................    13,000     38,000      134,000
                                              --------   --------   ----------
                                               136,000    319,000      739,000
Accumulated depreciation and amortization...   (12,000)   (57,000)    (171,000)
                                              --------   --------   ----------
    Property and equipment, net.............  $124,000   $262,000   $  568,000
                                              ========   ========   ==========
</TABLE>

                                     F-109
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                       DECEMBER 31, 1996, 1997, AND 1998

5.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<CAPTION>
                                                        DECEMBER 31,
                                              --------------------------------
                                                1996       1997        1998
                                              --------   --------   ----------
<S>                                           <C>        <C>        <C>
Deferred revenue............................  $ 24,000   $     --   $       --
Deferred tax liability......................   106,000    239,000      194,000
Accrued media expense.......................        --         --      798,000
Accrued compensation........................   147,000         --           --
Other accrued liabilities...................    15,000    117,000       90,000
                                              --------   --------   ----------
    Total accrued liabilities...............  $292,000   $356,000   $1,082,000
                                              ========   ========   ==========
</TABLE>

6.  LEASES:

    The Company has noncancelable operating leases, primarily for real estate,
that expire over the next 3 years. Rental expense for operating leases during
the years ended December 31, 1996, 1997, and 1998, was $21,000, $73,000 and
$102,000, respectively.

    The Company leases certain equipment under capital leases.

    Future minimum lease payments under capital leases and noncancelable
operating leases are as follows as of December 31, 1998:

<TABLE>
<CAPTION>
                                                              CAPITAL    OPERATING
                                                               LEASES     LEASES
                                                              --------   ---------
<S>                                                           <C>        <C>
    Year ended December 31, 1999............................  $39,000    $ 93,000
    2000....................................................   21,000      63,000
    2001....................................................    5,000      42,000
                                                              -------    --------
        Total minimum lease payments........................   65,000    $198,000
                                                                         ========
    Less: Amount representing interest......................   (9,000)
                                                              -------
    Present value of capital lease obligations..............   56,000
    Less: Current portion of capital lease obligations......   41,000
                                                              -------
    Long-term portion of capital lease obligation...........  $15,000
                                                              =======
</TABLE>

    Equipment under capital leases is summarized as follows:

<TABLE>
<CAPTION>
                                                            DECEMBER 31,
                                                   ------------------------------
                                                     1996       1997       1998
                                                   --------   --------   --------
<S>                                                <C>        <C>        <C>
Computer equipment...............................  $11,000    $54,000    $93,000
Accumulated depreciation.........................   (1,000)    (7,000)   (14,000)
                                                   -------    -------    -------
    Total........................................  $10,000    $47,000    $79,000
                                                   =======    =======    =======
</TABLE>

                                     F-110
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                       DECEMBER 31, 1996, 1997, AND 1998

7.  INCOME TAXES:

    The Company follows the provisions of SFAS No. 109, "Accounting for Income
Taxes," for financial reporting purposes. Deferred tax assets or liabilities at
the end of each period are determined using the currently enacted tax rates to
apply to taxable income in the period in which the deferred tax asset or
liability is expected to be settled or realized.

    The components of the net deferred tax liability as of December 31, 1996,
1997, and 1998 are as follows:

<TABLE>
<CAPTION>
                                                         DECEMBER 31,
                                                ------------------------------
                                                  1996       1997       1998
                                                --------   --------   --------
<S>                                             <C>        <C>        <C>
Total deferred tax liabilities................  $106,000   $242,000   $199,000
Total deferred tax assets.....................        --     (3,000)    (5,000)
                                                --------   --------   --------
Net deferred tax liability....................  $106,000   $239,000   $194,000
                                                ========   ========   ========
</TABLE>

    The sources of and differences between the financial accounting and tax
basis of i33's assets and liabilities that give rise to the net deferred tax
liability are as follows:

<TABLE>
<CAPTION>
                                                         DECEMBER 31,
                                                ------------------------------
                                                  1996       1997       1998
                                                --------   --------   --------
<S>                                             <C>        <C>        <C>
Deferred tax liabilities:
  Differences from accrual to cash basis......  $106,000   $242,000   $199,000
Deferred tax assets:
  Other.......................................        --     (3,000)    (5,000)
                                                --------   --------   --------
                                                $106,000   $239,000   $194,000
                                                ========   ========   ========
</TABLE>

    The components of the provision (benefit) for income taxes as of
December 31, 1996, 1997, and 1998, are as follows:

<TABLE>
<CAPTION>
                                                         DECEMBER 31,
                                                ------------------------------
                                                  1996       1997       1998
                                                --------   --------   --------
<S>                                             <C>        <C>        <C>
Federal income taxes:
  Current.....................................  $     --   $     --   $     --
  Deferred....................................    66,000    136,000         --
State taxes:
  Current.....................................        --     26,000     11,000
  Deferred....................................    40,000     (3,000)   (45,000)
                                                --------   --------   --------
Provisions (benefit) for income taxes.........  $106,000   $159,000   $(34,000)
                                                ========   ========   ========
</TABLE>

                                     F-111
<PAGE>
                         I33 COMMUNICATIONS CORPORATION

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                       DECEMBER 31, 1996, 1997, AND 1998

    For the years ended December 31, 1996, 1997, and 1998, the provision
(benefit) for income taxes differed from the amounts computed at the statutory
rate, as follows:

<TABLE>
<CAPTION>
                                                         DECEMBER 31,
                                                ------------------------------
                                                  1996       1997       1998
                                                --------   --------   --------
<S>                                             <C>        <C>        <C>
Income tax computed at statutory rate.........  $ 78,000   $     --   $     --
State income taxes, net of federal income tax
  benefit.....................................    27,000     23,000    (34,000)
C Corporation Federal tax.....................        --    136,000         --
Other, net....................................     1,000         --         --
                                                --------   --------   --------
                                                $106,000   $159,000   $(34,000)
                                                ========   ========   ========
</TABLE>

8.  RELATED PARTIES:

    The Company conducts certain transactions with a related party. These
transactions include the borrowing of funds for which the balances outstanding
at December 31, 1996, 1997, and 1998 were $104,000, $0 and $0, respectively. In
addition, the Company shares office space and has purchased equipment from a
related party during the years ended December 31, 1996, 1997, and 1998.

    The Company has a note with a relative of one of the shareholders, which is
collateralized by substantially all of the assets of the Company and is
personally guaranteed by the Company's President and Chief Technical Officer.
Under the terms of the agreement, the loan was interest free and payment was due
upon the sale of the Company. As of December 31, 1998, the balance due on the
note was $500,000. The note was repaid on January 8, 1999.

    During the years ended December 31, 1997 and 1998, the Company wrote off
amounts due from a related party of $5,000 and $18,000, respectively.

                                     F-112
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To Salzinger & Company:

    We have audited the accompanying balance sheet of Salzinger & Company (a
Virginia corporation), as of December 31, 1998, and the related statements of
operations, stockholder's equity, and cash flows for the year then ended. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

    We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Salzinger & Company as of
December 31, 1998, and the results of its operations and its cash flows for the
year then ended in conformity with generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
March 15, 1999

                                     F-113
<PAGE>
                              SALZINGER & COMPANY

                                 BALANCE SHEET

                            AS OF DECEMBER 31, 1998

<TABLE>
<S>                                                           <C>
ASSETS
Current assets:
  Cash......................................................  $  193,000
  Accounts receivable.......................................   1,707,000
                                                              ----------
    Total current assets....................................   1,900,000
Property and equipment, net.................................      43,000
Other assets................................................      14,000
                                                              ----------
    Total assets............................................  $1,957,000
                                                              ==========
LIABILITIES AND STOCKHOLDER'S EQUITY
Liabilities:
  Short-term borrowing......................................  $  130,000
  Accounts payable..........................................      34,000
  Accrued liabilities.......................................     177,000
                                                              ----------
    Total current liabilities...............................     341,000
                                                              ----------

Commitments and contingencies (Note 6)
Stockholder's equity:
  Common stock, $1.00 par value; 5,000 shares authorized;
    1,000 shares issued and outstanding.....................       1,000
  Retained earnings.........................................   1,615,000
                                                              ----------
    Total stockholder's equity..............................   1,616,000
                                                              ----------
    Total liabilities and stockholder's equity..............  $1,957,000
                                                              ==========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-114
<PAGE>
                              SALZINGER & COMPANY

                            STATEMENT OF OPERATIONS

                      FOR THE YEAR ENDED DECEMBER 31, 1998

<TABLE>
<S>                                                           <C>
Revenues....................................................  $3,110,000
Cost of revenues............................................   1,738,000
                                                              ----------
    Gross profit............................................   1,372,000
                                                              ----------
Operating expenses:
  Selling and marketing.....................................       2,000
  General and administrative................................     425,000
  Depreciation and amortization.............................      13,000
                                                              ----------
    Total operating expenses................................     440,000
                                                              ----------
Income from operations......................................     932,000
Interest income.............................................      20,000
                                                              ----------
Net income..................................................  $  952,000
                                                              ==========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-115
<PAGE>
                              SALZINGER & COMPANY

                       STATEMENT OF STOCKHOLDER'S EQUITY

                      FOR THE YEAR ENDED DECEMBER 31, 1998

<TABLE>
<CAPTION>
                                                          COMMON STOCK                        TOTAL
                                                       -------------------    RETAINED    STOCKHOLDER'S
                                                        SHARES     AMOUNT     EARNINGS       EQUITY
                                                       --------   --------   ----------   -------------
<S>                                                    <C>        <C>        <C>          <C>
Balance, December 31, 1997...........................   1,000      $1,000    $  663,000    $  664,000
  Net income.........................................      --          --       952,000       952,000
                                                        -----      ------    ----------    ----------
Balance, December 31, 1998...........................   1,000      $1,000    $1,615,000    $1,616,000
                                                        =====      ======    ==========    ==========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-116
<PAGE>
                              SALZINGER & COMPANY

                            STATEMENT OF CASH FLOWS

                      FOR THE YEAR ENDED DECEMBER 31, 1998

<TABLE>
<S>                                                           <C>
Cash flows from operating activities:
  Net income................................................  $   952,000
  Adjustments to reconcile net income to net cash used in
    operating activities:
    Depreciation and amortization...........................       13,000
    Change in assets and liabilities:
      Accounts receivable...................................   (1,152,000)
      Other assets..........................................       (5,000)
      Accounts payable......................................       19,000
      Accrued liabilities...................................       11,000
                                                              -----------
        Net cash used in operating activities...............     (162,000)
                                                              -----------
Cash flows from financing activities:
  Short-term borrowing......................................      130,000
                                                              -----------
Net decrease in cash........................................      (32,000)
Cash, beginning of year.....................................      225,000
                                                              -----------
Cash, end of year...........................................  $   193,000
                                                              ===========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-117
<PAGE>
                              SALZINGER & COMPANY

                         NOTES TO FINANCIAL STATEMENTS

                               DECEMBER 31, 1998

1.  BUSINESS DESCRIPTION:

    Salzinger & Company ("Salzinger" or the "Company") was incorporated in 1995,
under the laws of the state of Virginia. Salzinger is a consulting company
providing business-level strategic consulting in website marketing strategy
development, planning and implementation. It is headquartered in Virginia and
operates primarily in the Northeast, with some international clients.

    On March 15, 1999, certain assets of the Company were acquired by AppNet
Systems, Inc.

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                           <C>
Computer equipment and software.............................  three years
Furniture and fixtures......................................  five years
Automobile..................................................  five years
</TABLE>

    Purchased software is capitalized and amortized principally over three
years.

    In accordance with Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
Be Disposed Of," the Company reviews its recorded long-lived assets for
impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash, accounts
receivable, accounts payable and short-term borrowing. In management's opinion,
the carrying amounts of these financial instruments approximated their fair
values at December 31, 1998.

REVENUE RECOGNITION

    Revenues from time and material contracts are recognized based on fixed
hourly rates for direct labor hours expended. The Company also enters into
arrangements in which a portion of its fee is based on the successful completion
of a transaction. Revenue under these contracts is recognized when

                                     F-118
<PAGE>
                              SALZINGER & COMPANY

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

the transaction has closed and the Company is due its success fee. Included
within revenues in the accompanying statement of operations are success fees of
approximately $730,000.

    Cost of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.
Unbilled receivables on contracts are comprised of costs, plus earnings on
certain contracts in excess of contractual billings on such contracts. Cash
received in excess of costs incurred is classified as deferred revenue.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and accounts receivable from
clients in excess of 10% of total revenues and accounts receivable:

<TABLE>
<CAPTION>
                                                   REVENUES        ACCOUNTS RECEIVABLE
                                              FOR THE YEAR ENDED          AS OF
                                              DECEMBER 31, 1998     DECEMBER 31, 1998
                                              ------------------   -------------------
<S>                                           <C>                  <C>
Company A...................................          31%                  50%
Company B...................................          21%                  27%
Company C...................................          15%                    *
Company D...................................          15%                  13%
</TABLE>

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

*   Represents less than 10% of total.

INCOME TAXES

    The Company, with the consent of its shareholders, has elected to be taxed
pursuant to Subchapter S of the Internal Revenue Code (an "S Corporation"). In
lieu of corporation income taxes, the shareholders of an S corporation are taxed
on their proportionate share of the Company's taxable income. Therefore, no
provision for federal or state income taxes has been included in the
accompanying financial statements.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following:

<TABLE>
<S>                                                           <C>
Accounts receivable.........................................  $1,522,000
Unbilled accounts receivable................................     185,000
                                                              ----------
    Total...................................................  $1,707,000
                                                              ==========
</TABLE>

    There was no allowance for doubtful accounts recorded as management believes
that all amounts will be collected.

                                     F-119
<PAGE>
                              SALZINGER & COMPANY

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

4.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following:

<TABLE>
<S>                                                           <C>
Computer equipment and software.............................  $ 21,000
Furniture and fixtures......................................     9,000
Automobile..................................................    35,000
                                                              --------
                                                                65,000
Accumulated depreciation and amortization...................   (22,000)
                                                              --------
    Property and equipment, net.............................  $ 43,000
                                                              ========
</TABLE>

5.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following:

<TABLE>
<S>                                                           <C>
Accrued compensation and benefits...........................  $151,000
Deferred revenue............................................    25,000
Other.......................................................     1,000
                                                              --------
    Accrued liabilities.....................................  $177,000
                                                              ========
</TABLE>

6.  LEASES:

    The Company is party to a sublease agreement under which it rents its
corporate office. The sublease is renewable on a month-to-month basis. The
Company is also party to a second lease which is renewed annually. Rental
expense for operating leases during the year ended December 31, 1998 was
$130,000.

    The Company leases certain equipment under noncancelable operating leases.

    Future minimum lease payments under noncancelable operating leases for
office space and equipment are as follows as of December 31, 1998:

<TABLE>
<S>                                                           <C>
1999........................................................  $81,000
2000........................................................   13,000
                                                              -------
    Total minimum lease payments............................  $94,000
                                                              =======
</TABLE>

7.  RELATED PARTIES:

    The Company's sole stockholder loaned $130,000 to the Company in
December 1998. The Company repaid the loan in January 1999.

8.  RETIREMENT PLAN:

    The Company maintains a profit-sharing and retirement plan under the
provisions of section 408(p) of the Internal Revenue Code. The Plan provides for
contributions by employees and a discretionary contribution by the Company. The
plan is for the benefit of all employees. Participants may contribute up to
$6,000 annually. Employee contributions are fully vested. The Company
contributes 2 percent of employees total salary. The Company's contribution
vests immediately. Company contributions totaled $23,000 for the year ended
December 31, 1998.

                                     F-120
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To Internet Outfitters, Inc.:

    We have audited the accompanying balance sheet of Internet Outfitters, Inc.
(a California corporation), as of December 31, 1998, and the related statements
of operations, stockholders' equity, and cash flows for the year then ended.
These financial statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial statements based
on our audit.

    We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of the Company as of
December 31, 1998, and the results of its operations and its cash flows for the
year then ended, in conformity with generally accepted accounting principles.

                                          ARTHUR ANDERSEN LLP

Washington, D.C.
March 26, 1999

                                     F-121
<PAGE>
                           INTERNET OUTFITTERS, INC.

                                 BALANCE SHEET

                            AS OF DECEMBER 31, 1998

<TABLE>
<S>                                                           <C>
ASSETS
Current assets:
  Cash......................................................  $ 70,000
  Accounts receivable, net..................................   555,000
  Other current assets......................................    71,000
                                                              --------
      Total current assets..................................   696,000
Property and equipment, net.................................   239,000
Other assets................................................     6,000
                                                              --------
      Total assets..........................................  $941,000
                                                              ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................  $227,000
  Accrued liabilities.......................................   184,000
  Current portion of long-term debt.........................   316,000
  Current portion of capital lease obligations..............    17,000
                                                              --------
      Total current liabilities.............................   744,000
Long-term debt, net of current portion......................    53,000
Capital lease obligations, net of current portion...........     3,000
Deferred tax liability......................................    29,000
                                                              --------
      Total liabilities.....................................   829,000
                                                              --------
Commitments and contingencies (Note 11)
Stockholders' equity:
  Common stock, no par value; 20,000,000 shares authorized;
    7,695,641 shares issued and outstanding.................     8,000
  Additional paid-in capital................................   221,000
  Deferred compensation.....................................  (164,000)
  Retained earnings.........................................    47,000
                                                              --------
      Total stockholders' equity............................   112,000
                                                              --------
      Total liabilities and stockholders' equity............  $941,000
                                                              ========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-122
<PAGE>
                           INTERNET OUTFITTERS, INC.

                            STATEMENT OF OPERATIONS

                      FOR THE YEAR ENDED DECEMBER 31, 1998

<TABLE>
<S>                                                           <C>
Revenues....................................................  $2,343,000
Cost of revenues............................................   1,287,000
                                                              ----------
            Gross profit....................................   1,056,000
                                                              ----------
Operating expenses:
  Selling and marketing.....................................      47,000
  General and administrative................................     859,000
  Stock-based compensation..................................      57,000
  Depreciation and amortization.............................      57,000
                                                              ----------
            Total operating expenses........................   1,020,000
                                                              ----------
Income from operations......................................      36,000
Interest expense, net.......................................      47,000
                                                              ----------
Loss before income taxes....................................     (11,000)
Provision for income taxes..................................      52,000
                                                              ----------
Net loss....................................................  $  (63,000)
                                                              ==========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-123
<PAGE>
                           INTERNET OUTFITTERS, INC.

                       STATEMENT OF STOCKHOLDERS' EQUITY

                      FOR THE YEAR ENDED DECEMBER 31, 1998

<TABLE>
<CAPTION>
                                  COMMON STOCK        ADDITIONAL                                  TOTAL
                              ---------------------    PAID-IN       DEFERRED     RETAINED    STOCKHOLDERS'
                                SHARES      AMOUNT     CAPITAL     COMPENSATION   EARNINGS       EQUITY
                              ----------   --------   ----------   ------------   ---------   -------------
<S>                           <C>          <C>        <C>          <C>            <C>         <C>
Balance, December 31,
  1997......................   7,695,641    $8,000     $     --      $      --    $ 110,000     $ 118,000
  Stock-based
    compensation............          --        --      221,000       (164,000)          --        57,000
  Net loss..................          --        --           --             --      (63,000)      (63,000)
                              ----------    ------     --------      ---------    ---------     ---------
Balance, December 31,
  1998......................   7,695,641    $8,000     $221,000      $(164,000)   $  47,000     $ 112,000
                              ==========    ======     ========      =========    =========     =========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-124
<PAGE>
                           INTERNET OUTFITTERS, INC.

                            STATEMENT OF CASH FLOWS

                      FOR THE YEAR ENDED DECEMBER 31, 1998

<TABLE>
<S>                                                           <C>
Cash flows from operating activities:
  Net loss..................................................  $ (63,000)
  Adjustments to reconcile net loss to net cash used in
    operating activities:
    Deferred income taxes...................................    (29,000)
    Stock-based compensation................................     57,000
    Depreciation and amortization...........................     57,000
    Change in assets and liabilities:
      Accounts receivable, net..............................   (217,000)
      Other assets..........................................     (8,000)
      Accounts payable......................................      5,000
      Accrued liabilities...................................    138,000
                                                              ---------
        Net cash used in operating activities...............    (60,000)
                                                              ---------
Cash flows from investing activities:
  Purchase of property and equipment, net...................   (124,000)
                                                              ---------
Cash flows from financing activities:
  Proceeds from long-term debt..............................    292,000
  Repayments of long-term debt..............................    (28,000)
  Repayments of capital lease obligations...................    (13,000)
                                                              ---------
        Net cash provided by financing activities...........    251,000
                                                              ---------
Net increase in cash........................................     67,000
Cash, beginning of year.....................................      3,000
                                                              ---------
Cash, ending of year........................................  $  70,000
                                                              =========
Supplementary information:
  Cash paid for interest....................................  $  45,000
                                                              =========
  Cash paid for income taxes................................  $  63,000
                                                              =========
</TABLE>

         The accompanying notes are an integral part of this statement.

                                     F-125
<PAGE>
                           INTERNET OUTFITTERS, INC.

                         NOTES TO FINANCIAL STATEMENTS

                               DECEMBER 31, 1998

1.  BUSINESS DESCRIPTION:

    Internet Outfitters, Inc. ("IO" or the "Company") was incorporated in 1994
under the laws of the state of California. IO is an information technology
services company providing internet and web-based solutions designed to improve
clients' business processes, including strategy consulting, applications
development, electronic commerce, systems design, technology development,
integration, and operation. The Company is headquartered in Santa Monica,
California and operates primarily in the western region of the United States.

    On March 22, 1999, the Company entered into a Stock Purchase Agreement with
AppNet Systems, Inc. ("AppNet"). The transaction was completed on March 26,
1999.

    There are significant risks associated with the Company, including the
subjectivity of the Company's services to rapid technological change and the
Year 2000 issue.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES:

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost, net of accumulated depreciation
and amortization. Depreciation and amortization are computed using the
straight-line method over the estimated useful lives of the related assets, as
follows:

<TABLE>
<S>                                                        <C>
Computer equipment and software..........................  three to five years
Furniture and fixtures...................................  seven years
</TABLE>

    Purchased software and third-party costs incurred to develop software for
internal use are capitalized and amortized principally over three years.

    In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to Be Disposed Of," the Company reviews its recorded long-lived assets
for impairment whenever events or changes in circumstances indicate that the
carrying amount of an asset may not be recoverable.

FAIR VALUE OF FINANCIAL INSTRUMENTS

    The Company's financial instruments consist primarily of cash, accounts
receivable, accounts payable, long-term debt and capital lease obligations. In
management's opinion, the carrying amounts of these financial instruments
approximated their fair values at December 31, 1998.

                                     F-126
<PAGE>
                           INTERNET OUTFITTERS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

STOCK-BASED COMPENSATION

    The Company accounts for stock-based employee compensation arrangements
using the intrinsic value method in accordance with provisions of Accounting
Principles Board ("APB") Opinion No. 25, "Accounting for Stock Issued to
Employees," and complies with the disclosure provisions of SFAS No. 123,
"Accounting for Stock-Based Compensation." Under APB Opinion No. 25,
compensation cost is recognized based on the difference, if any, on the date of
grant between the fair value of the Company's stock and the amount an employee
must pay to acquire the stock.

REVENUE RECOGNITION

    Revenues from time and material contracts are recognized based on fixed
hourly rates for direct labor hours expended. Revenues from fixed-price
contracts are recognized on the percentage-of-
']completion method, with costs and estimated profits recorded as work is
performed. Revenues from fixed-price advertising contracts in which the Company
delivers advertising impressions for its customers on third-party websites are
recognized ratably over the period the advertising impressions are delivered. In
accordance with industry practice, the cost of third party advertising placed by
the Company on behalf of its clients is offset against the related customer
reimbursement in the accompanying statement of operations. Revenues from
cost-plus-fixed-fee contracts are recognized on the basis of direct costs plus
indirect costs incurred plus a fixed profit percentage.

    Costs of revenues includes all direct material and labor costs related to
contract performance and does not include any related depreciation expense.
Provisions for estimated losses on uncompleted contracts are made in the period
in which such losses are determined. Changes in contract performance and
estimated profitability, including final contract settlements, may result in
revisions to costs and income and are recognized in the period in which the
revisions are determined. Unbilled revenues on contracts are comprised of costs,
plus earnings on certain contracts in excess of contractual billings on such
contracts. Cash received in excess of costs incurred is classified as deferred
revenue.

BUSINESS CONCENTRATION AND CREDIT RISK

    The following table summarizes the revenues and receivables from clients in
excess of 10% of total revenues and receivables:

<TABLE>
<CAPTION>
                                                                       ACCOUNTS
                                                   REVENUES           RECEIVABLE
                                              FOR THE YEAR ENDED         AS OF
                                              DECEMBER 31, 1998    DECEMBER 31, 1998
                                              ------------------   -----------------
<S>                                           <C>                  <C>
Customer A..................................         42.2%               27.0%
Customer B..................................         18.1%               33.9%
Customer C..................................         12.5%              *
</TABLE>

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

*   Represents less than 10 percent of total.

INCOME TAXES

    Income taxes are accounted for using an asset and liability approach that
requires the recognition of taxes payable or refundable for the current year and
deferred tax liabilities and assets for the future tax consequences of events
that have been recognized in the Company's financial statements or tax

                                     F-127
<PAGE>
                           INTERNET OUTFITTERS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

returns. The measurement of current and deferred tax assets and liabilities are
based on provisions of the enacted tax law; the effects of future changes in tax
laws or rates are not anticipated. The measurement of deferred tax assets is
reduced, if necessary, by the amount of any tax benefits that, based on
available evidence, are not expected to be realized.

3.  ACCOUNTS RECEIVABLE:

    Accounts receivable consists of the following as of December 31, 1998:

<TABLE>
<S>                                                           <C>
Commercial clients..........................................  $560,000
Unbilled accounts receivable................................    41,000
Less: Allowance for doubtful accounts.......................   (46,000)
                                                              --------
    Accounts receivable, net................................  $555,000
                                                              --------
</TABLE>

    In February 1998, the Company entered into a factoring agreement to sell,
with recourse, on an ongoing basis, certain accounts receivable to a third
party. Collections received on these accounts may be replaced by new receivables
in order to maintain the aggregate outstanding balance. Proceeds from the sale
of receivables are collateralized by substantially all of the assets of the
Company. At no time may the total accounts receivable factored exceed $350,000.
Fees associated with these transactions are included in interest expense in the
accompanying statement of operations. The factoring agreement has an initial
term of one year and is renewed from year to year thereafter unless terminated
by either party.

    As of December 31, 1998, accounts receivable totaling $224,000 had been
pledged as collateral against this asset-based borrowing.

    In accordance with SFAS No. 125, "Accounting for Transfers and Servicing of
Financial Assets and Extinguishments of Liabilities," the Company's accounts
receivable program will be accounted for as a secured borrowing. The receivables
and the corresponding debt are included as an asset and liability, respectively,
on the accompanying balance sheet.

4.  OTHER CURRENT ASSETS:

    Other current assets consists of the following as of December 31, 1998:

<TABLE>
<S>                                                           <C>
Deferred tax asset..........................................  $ 58,000
Other assets................................................    13,000
                                                              --------
    Total...................................................  $ 71,000
                                                              ========
</TABLE>

                                     F-128
<PAGE>
                           INTERNET OUTFITTERS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

5.  PROPERTY AND EQUIPMENT:

    Property and equipment consists of the following as of December 31, 1998:

<TABLE>
<S>                                                           <C>
Computer equipment and software.............................  $332,000
Furniture and fixtures......................................     8,000
                                                              --------
                                                               340,000
Accumulated depreciation and amortization...................   101,000
                                                              --------
    Property and equipment, net.............................  $239,000
                                                              ========
</TABLE>

6.  ACCRUED LIABILITIES:

    Accrued liabilities consists of the following as of December 31, 1998:

<TABLE>
<S>                                                           <C>
Accrued compensation and benefits...........................  $ 96,000
Taxes payable...............................................    33,000
Deferred revenue............................................    30,000
Other accrued liabilities...................................    25,000
                                                              --------
    Total...................................................  $184,000
                                                              --------
</TABLE>

7.  DEBT:

    In July 1996, the Company issued a $41,000 note payable to an officer of the
Company with a maturity of December 31, 1999. Interest on this note was payable
monthly at a rate of 8 percent. In April 1998, the Company issued a second note
in the amount of $51,000 payable to this officer, which contained a maturity of
June 30, 1999. Interest on this note was payable monthly at a rate of
12 percent.

    In December 1998, the Company refinanced the outstanding balances of the
above notes and issued a single $92,000 note payable to this officer. This note
bears interest monthly at a rate of 10 percent and matures on December 31, 2000.

    The Company issued a $50,000 note payable to a related party in March 1996,
which bears interest monthly at a rate of 8 percent. Principal payments were due
on a quarterly basis with a scheduled maturity of March 1, 1999. In
December 1998, the Company rescheduled the payments of the remaining outstanding
balance of $45,000. The amended note has a scheduled maturity of December 31,
1999. All other terms remained unchanged from the original note.

    In 1998, the Company entered into a factoring agreement, the proceeds from
which are treated as a secured borrowing (see Note 3). The outstanding balance
at December 31, 1998 will be repaid through the subsequent sale of additional
accounts receivable from the Company. Finance charges of 2.25 percent are
payable monthly on the average outstanding balance for the respective period. In
addition, the Company is required to pay a monthly administrative fee of
0.75 percent of the face amount of each purchased receivable during the
respective period. The outstanding balance is secured by substantially all of
the assets of the Company. As of December 31, 1998, $224,000 was outstanding
related to this agreement.

                                     F-129
<PAGE>
                           INTERNET OUTFITTERS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

    In March 1998, IO issued a note payable to an employee of the Company in the
amount of $17,000. This note bears interest annually at a rate of 12 percent. At
December 31, 1998, $8,000 was outstanding related to this note. The remaining
principal is secured by a $26,000 billed receivable of the Company and will be
repaid upon receipt of payment from those receivables.

    As of December 31, 1998, the maturities of long-term debt were as follows:

<TABLE>
<S>                                                           <C>
1999........................................................  $316,000
2000........................................................    53,000
                                                              --------
    Total...................................................  $369,000
                                                              --------
</TABLE>

8.  EMPLOYEE STOCK OPTION PLAN:

    The Company has a stock option plan for key employees. Options expire no
later than ten years from the date of the grant or when employment ceases,
whichever comes first. One-third of the granted options vest on the grant date.
The remaining options vest ratably on the first and second anniversaries of the
date of grant. The maximum number of shares of common stock that may be issued
pursuant to the stock option plan is 5,000,000 shares at December 31, 1998.

    The stock option plan is accounted for under APB Opinion No. 25, "Accounting
for Stock Issued to Employees." Had compensation cost for the plan been
determined based on the estimated fair value of the options at the grant dates
consistent with the method of SFAS No. 123, pro forma net loss would have been
approximately $289,000 for the year ended December 31, 1998. The weighted
average fair value of the options granted during 1998 is estimated to be $0.84
per option assuming the following: dividend yield of 0 percent, risk-free
interest rate of 5 percent and an expected term of the options of 3.4 years.

    The following summarizes option activity during 1998:

<TABLE>
<CAPTION>
                                                                     WEIGHTED-
                                                       NUMBER OF      AVERAGE
                                                        SHARES     EXERCISE PRICE
                                                       ---------   --------------
<S>                                                    <C>         <C>
Options outstanding December 31, 1997, exercise price
  range of $0.10 to $0.16............................  2,431,000        $0.13
    Granted in 1998..................................    345,000         0.20
                                                       ---------
Options outstanding, December 31, 1998, exercise
  price range of $0.10 to $0.20......................  2,776,000         0.14
                                                       =========        =====
Options exercisable, December 31, 1998...............  1,716,000        $0.13
                                                       =========        =====
</TABLE>

9.  INCOME TAXES:

    The Company follows the provisions of SFAS No. 109, "Accounting for Income
Taxes," for financial reporting purposes. Deferred tax assets or liabilities at
the end of each period are determined using the currently enacted tax rates to
apply to taxable income in the period in which the deferred tax asset or
liability is expected to be settled or realized.

                                     F-130
<PAGE>
                           INTERNET OUTFITTERS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

    The components of the net deferred tax asset are as follows as of
December 31, 1998:

<TABLE>
<S>                                                           <C>
Total deferred tax liabilities..............................  $(29,000)
Total deferred tax assets...................................    58,000
                                                              --------
    Net deferred tax asset..................................  $ 29,000
                                                              ========
</TABLE>

    The sources of and differences between the financial accounting and tax
basis of Internet Outfitters, Inc.'s assets and liabilities that give rise to
the net deferred tax asset are as follows as of December 31, 1998:

<TABLE>
<S>                                                           <C>
Deferred tax liabilities
  Depreciation..............................................  $(29,000)
Deferred tax assets
  Reserves..................................................    35,000
  Stock-based compensation..................................    23,000
                                                              --------
    Net deferred tax asset..................................  $ 29,000
                                                              ========
</TABLE>

    The components of the provision for income taxes as of December 31, 1998,
are as follows:

<TABLE>
<S>                                                           <C>
Federal income taxes:
  Current...................................................  $ 68,000
  Deferred..................................................   (29,000)
State taxes.................................................    13,000
                                                              --------
Provision for income taxes..................................  $ 52,000
                                                              ========
</TABLE>

    For the year ended December 31, 1998, the provision for income taxes
differed from the amounts computed at the statutory rate, as follows:

<TABLE>
<S>                                                           <C>
Income tax computed at statutory rates......................  $ (4,000)
State income taxes, net of federal income tax benefit.......     9,000
Permanent differences.......................................    48,000
Other, net..................................................    (1,000)
                                                              --------
                                                              $ 52,000
                                                              ========
</TABLE>

10. RELATED PARTIES:

    See Note 7 for a description of certain long-term debt obligations with
related parties.

    In 1998, IO has entered into a service agreement with a relative of an
officer of the Company. Under this agreement, this individual will act as
financial advisor for any sale, merger or financing transaction entered into by
the Company and, in exchange, will receive a fee equal to three percent of the
transaction consideration. No fees were paid in 1998 in connection with this
agreement.

                                     F-131
<PAGE>
                           INTERNET OUTFITTERS, INC.

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

                               DECEMBER 31, 1998

11. COMMITMENTS AND CONTINGENCIES:

LEASES

    The Company has noncancelable operating leases, primarily for real estate,
that expire over the next 2 years. One of the operating leases maintains an
escalation provision that requires annual incremental increases of at least
3 percent. Rental expense for operating leases during the year ended
December 31, 1998 was $63,000.

    The Company leases certain equipment under capital leases.

    Future minimum lease payments under capital leases and noncancelable
operating leases are as follows as of December 31, 1998:

<TABLE>
<CAPTION>
                                                           CAPITAL    OPERATING
                                                            LEASES     LEASES
                                                           --------   ---------
<S>                                                        <C>        <C>
1999.....................................................  $ 17,000    $68,000
2000.....................................................     5,000     11,000
                                                           --------    -------
    Total minimum lease payments.........................    22,000    $79,000
                                                                       =======
Less: Amount representing interest.......................    (2,000)
                                                           --------
Present value of capital lease obligations...............    20,000
Less: Current portion of capital lease obligations.......   (17,000)
                                                           --------
Long-term portion of capital lease obligations...........  $  3,000
                                                           ========
</TABLE>

    Equipment under capital leases is summarized as follows as of December 31,
1998:

<TABLE>
<S>                                                           <C>
Computer equipment..........................................  $ 49,000
Accumulated depreciation....................................   (15,000)
                                                              --------
    Total...................................................  $ 34,000
                                                              ========
</TABLE>

LITIGATION AND CLAIMS

    In 1998, one of the Company's suppliers informed IO that it believed the
Company had caused a third-party client of the Company to enter into an
incorrect license for a supplier's software. The supplier asserted that the
correct license required additional payments of approximately $2,200,000 in
license fees and technical support fees. The Company denies any liability for
additional licensing fees. While the Company intends to vigorously contest any
claim by the supplier that additional fees are owed in connection with the third
party, the ultimate resolution of this matter cannot be determined at this time.

                                     F-132
<PAGE>
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