ABOVENET COMMUNICATIONS INC
SC 13D, 1999-07-01
COMPUTER INTEGRATED SYSTEMS DESIGN
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<PAGE>


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             -----------------------

                                  SCHEDULE 13D


                    Under the Securities Exchange Act of 1934
                             -----------------------

                          ABOVENET COMMUNICATIONS INC.
                                (Name of Issuer)

                          COMMON STOCK, $.001 PAR VALUE
                         (Title of Class of Securities)


                                   003743101
                                 (CUSIP Number)

                                Arnold L. Wadler
             Executive Vice President, General Counsel and Secretary
                         Metromedia Fiber Network, Inc.
                        One Meadowlands Plaza, 6th Floor
                            East Rutherford, NJ 07073
                                 (201) 531-8000

                                 with a copy to:
                              Douglas A. Cifu, Esq.
                    Paul, Weiss, Rifkind, Wharton & Garrison
                           1285 Avenue of the Americas
                               New York, NY 10019
                                 (212) 373-3000

                     (Name, Address and Telephone Number of
                      Person Authorized to Receive Notices
                               and Communications)
                             -----------------------

                                  JUNE 22, 1999
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following
box /  /.


                                  PAGE 1 of 11


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 2 OF 11

- --------------------------------------------------------------------------------
1    NAME OF REPORTING PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Metromedia Fiber Network, Inc.
- --------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP               (a) / /
                                                                    (b) /X/

- --------------------------------------------------------------------------------
3    SEC USE ONLY
- --------------------------------------------------------------------------------
4    SOURCE OF FUNDS

        OO(1)
- --------------------------------------------------------------------------------

5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
     ITEMS 2(d) or 2(e)
                                                                        /  /
- --------------------------------------------------------------------------------
6    CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
- --------------------------------------------------------------------------------
     NUMBER OF          7  SOLE VOTING POWER
       SHARES               -0-
    BENEFICIALLY        --------------------------------------------------------
      OWNED BY          8  SHARED VOTING POWER
        EACH                13,235,374 (1)
     REPORTING          --------------------------------------------------------
    PERSON WITH         9  SOLE DISPOSITIVE POWER
                            -0-
                        --------------------------------------------------------
                        10 SHARED DISPOSITIVE POWER
                            13,235,374 (1)
- --------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         13,235,374 (1)
- --------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES /  /

- --------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         31.2% (based on 34,550,550 shares of Common Stock outstanding)
- --------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON
         CO
- --------------------------------------------------------------------------------

(1) No shares of AboveNet Communications Inc. have been purchased, directly or
indirectly, by the reporting entity. Rather, the reporting entity may be deemed
to have beneficial ownership of the shares reported herein pursuant to a voting
agreement and an option agreement (each, as described in the Introduction and in
Items 3 and 4 of this Schedule 13D), entered into in connection with a proposed
merger with AboveNet Communications Inc. Any such beneficial ownership is
expressly denied by the reporting entity.


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 3 OF 11


INTRODUCTION.

         No shares of AboveNet Communications Inc., a Delaware corporation (the
"Issuer"), have been purchased directly or indirectly by Metromedia Fiber
Network, Inc. ("Metromedia"). Metromedia is making this filing solely because it
may be deemed to have beneficial ownership of the shares reported herein
pursuant to the Voting Agreement and the Option Agreement (each, as described
below).

         On June 22, 1999, Metromedia and the Issuer executed an agreement and
plan of merger (the "Merger Agreement") pursuant to which the Issuer agreed to
merge (the "Merger") with a wholly owned subsidiary of Metromedia. In the
Merger, each share of the common stock, par value $.001 per share, of AboveNet
Communications Inc. (the "Common Stock") will be exchanged for 1.175 shares of
Class A Common Stock, par value $.01 per share, of Metromedia. The specific
terms of the exchange are included in the Merger Agreement, Article 2, Section
2.1, Paragraph (a), a copy of which is attached hereto as exhibit 99.1.
Capitalized terms used in this Schedule 13D without definition have the meanings
given to them in the Merger Agreement.

         The completion of the Merger is subject to a number of conditions,
including the approval of the Merger Agreement by the holders of Common Stock of
the Issuer. In connection therewith, certain shareholders of the Issuer (each a
"Shareholder" and, collectively, the "Shareholders"), who collectively own
6,359,814 shares of Common Stock of the Issuer representing approximately 17.9%
on a fully diluted basis with respect to the options held by such Shareholders,
of the Issuer's outstanding Common Stock (collectively, the "Stockholders'
Shares"), have entered into a Voting Agreement, dated as of June 22, 1999, in
the form attached hereto as Exhibit 99.2, with Metromedia (the "Voting
Agreement"). Under the Voting Agreement, each Shareholder has agreed that at any
meeting of the holders of Common Stock, or in connection with any written
consent of the holders of the Common Stock, such Shareholder shall vote or cause
to be voted the Stockholders' Shares of Common Stock held of record or
beneficially owned by such Shareholder (i) in favor of the Merger, the Merger
Agreement (as amended from time to time) and the transactions contemplated by
the Merger Agreement and (ii) against any proposal for any extraordinary
corporate transaction, such as a recapitalization, dissolution, liquidation, or
sale of assets of the Issuer or any merger, consolidation or other business
combination (other than the Merger) between the Issuer and any Person (other
than Metromedia or a subsidiary of Metromedia) or any other action or agreement
that is intended or which reasonably could be expected to (a) result in a breach
of any covenant, representation or warranty or any other obligation or agreement
of the Issuer under the Merger Agreement, (b) result in any of the conditions to
the Issuer's obligations under the Merger Agreement not being fulfilled or (c)
materially impede, interfere with, delay, postpone or materially adversely
affect the Merger and the transactions contemplated by the Merger Agreement.

         Each Shareholder further agreed (i) that, except as contemplated by the
Voting Agreement and the Merger Agreement, such Shareholder has not and shall
not, and shall use its reasonable best efforts to not permit any Person under
such Shareholder's control (including any record holder) to, enter into any
voting agreement or grant a proxy or power of attorney with respect to the
Stockholders' Shares of the Issuer's Common Stock held of


<PAGE>

CUSIP NO.  6934OT10                                              PAGE 4 OF 11


record or beneficially owned by such Shareholder which, in either case, is
inconsistent with the Voting Agreement; (ii) that such Shareholder will not,
prior to the termination of the Voting Agreement, either directly or indirectly,
offer or otherwise agree to sell, assign, pledge, hypothecate, transfer,
exchange, or dispose of any of its Stockholders' Shares or options, warrants or
other convertible securities to acquire or purchase shares of the Issuer's
Common Stock (collectively, the "Derivative Securities") or any other securities
or rights convertible into or exchangeable for shares of the Issuer's Common
Stock, owned either directly or indirectly by such Shareholder or with respect
to which such Shareholder has the power of disposition, whether now or hereafter
acquired, without the prior written consent of Metromedia (provided nothing
contained therein will be deemed to restrict the exercise or conversion of
Derivative Securities outstanding on the date thereof), unless the Person to
whom Stockholders' Shares or Derivative Securities have been sold, assigned,
pledged, hypothecated, transferred, exchanged or disposed agrees to be bound by
the Voting Agreement as if a party hereto; (iii) and consented to the entry of
stop transfer instructions by the Issuer against the transfer of any
Stockholders' Shares of the Issuer's Common Stock inconsistent with paragraph
(ii) above.

         The Voting Agreement will terminate upon the earlier to occur of (i)
the closing of the transactions contemplated by the Merger Agreement, (ii) the
termination of the Merger Agreement in accordance with its terms and (iii)
unless the Voting Agreement is extended by agreement of each of the parties
thereto, December 31, 1999.

         If subsequent to the date of the Voting Agreement, the Shareholders, as
a group or individually, acquire additional shares of Common Stock of the
Issuer, under the terms of the Voting Agreement, these additional shares, will
be subject to the terms of the Voting Agreement.

         In addition, in connection with the Merger Agreement, Metromedia and
the Issuer have entered into an Option Agreement, dated as of June 22, 1999, in
the form attached hereto as Exhibit 99.3 (the "Option Agreement"), pursuant to
which the Issuer has granted Metromedia an option (the "Option") to acquire
6,875,560 newly-issued shares of the Issuer's Common Stock representing
approximately 16.6% of the Issuer's outstanding Common Stock after giving effect
to such issuance (collectively, the "Option Shares" and, together with the
Stockholders' Shares, the "Shares") at a purchase price equal to $49.9375 per
share, subject to certain adjustments.

         The Option becomes exercisable upon the occurrence of any event as a
result of which the Merger Agreement is terminated and Metromedia becomes
entitled to receive the Termination Amount pursuant to Section 7.5(b) of the
Merger Agreement.

         The Issuer will be obligated to repurchase the Option from Metromedia
at the request of Metromedia made at any time after the first time when the
Option has become exercisable and ending on the first anniversary thereof at a
repurchase price in cash equal to the excess, if any, of (i) the Applicable
Price (as defined in Section 7(c) of the Option Agreement) for each Option Share
that remains subject to the Option over (ii) $49.9375, multiplied by the number
of Option Shares as to which the Option has not been exercised, except that in
no event will the Issuer be required to pay to Metromedia an amount exceeding
the product of (x) $1.00 and the number of Option Shares that remain subject to
the Option.


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 5 OF 11


         In the event that Metromedia notifies the Issuer of its intention to
exercise the Option, the Issuer will be entitled to require Metromedia to sell
to the Issuer the Option Shares acquired by Metromedia pursuant to such exercise
at a purchase price per share equal to $49.9375 plus $1.00.

         In no event will Metromedia be entitled to receive an aggregate amount
under the Voting Agreement and Section 7.5(b) of the Merger Agreement in excess
of the sum of (i) the aggregate exercise price paid by Metromedia upon exercise
of the Option plus (ii) $50,000,000.

         The Option will expire upon the earlier of (i) the consummation of the
transactions contemplated by the Merger Agreement, (ii) the termination of the
Merger Agreement other than under circumstances that would trigger the exercise
of the Option or (iii) the date that is twelve months after termination of the
Merger Agreement under circumstances which constitute, or which, if the
conditions to the payment of the Termination Amount were satisfied, would
constitute an exercise event under the Option Agreement.

         The description of the transactions summarized above are qualified in
their entirety by reference to the Exhibits attached hereto.

ITEM 1. SECURITY AND ISSUER.

         The class of securities to which this Schedule 13D relates is the
Common Stock, $.001 par value (defined above as the "Common Stock"), of AboveNet
Communications Inc., a Delaware corporation (defined above as the "Issuer"),
whose principal executive offices are located at 50 W. San Fernando Street,
Suite #1010, San Jose, California 95113.

ITEM 2. IDENTITY AND BACKGROUND.

         Metromedia Fiber Network, Inc. ("Metromedia") is a Delaware corporation
whose principal place of business is 1 North Lexington Avenue, White Plains, NY
10601. Metromedia is a facilities-based provider of technologically advanced,
high-bandwidth, fiber optic communications infrastructure to carrier and
corporate/government customers in the United States and Europe.

         The response to Items 2(d) and (e) of this Schedule is negative with
respect to Metromedia.

         The directors and executive officers of Metromedia are as follows:

         Stephen A. Garofalo is the Chairman of the Board of Directors and Chief
Executive Officer of Metromedia and a citizen of the United States. Mr.
Garofalo's business address is c/o Metromedia Fiber Network, Inc., 1 North
Lexington Avenue, White Plains, NY 10601.

         Howard M. Finkelstein is the President, Chief Operating Officer and a
Director of Metromedia and a citizen of the United States. Mr. Finkelstein's
principal business address is c/o Metromedia Fiber Network, Inc., 1 North
Lexington Avenue, White Plains, NY 10601.


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 6 OF 11


         Vincent A. Galluccio is the Senior Vice President and a Director of
Metromedia and a citizen of the United States. Mr. Galluccio's principal
business address is c/o Metromedia Fiber Network, Inc., 1 North Lexington
Avenue, White Plains, NY 10601.

         Gerard Benedetto is the Vice President--Chief Financial Officer of
Metromedia and a citizen of the United States. Mr. Benedetto's principal
business address is c/o Metromedia Fiber Network, Inc., 1 North Lexington
Avenue, White Plains, NY 10601.

         Charlotte G. Denenberg is the Vice President--Chief Technology Officer
of Metromedia and a citizen of the United States. Ms. Denenberg's principal
business address is c/o Metromedia Fiber Network, Inc., 1 North Lexington
Avenue, White Plains, NY 10601.

         Nicholas M. Tanzi is the Vice President--Sales of Metromedia and a
citizen of the United States. Mr. Tanzi's principal business address is c/o
Metromedia Fiber Network, Inc., 1 North Lexington Avenue, White Plains, NY
10601.

         Silvia Kessel is Executive Vice President and Director of Metromedia.
Ms. Kessel is also Executive Vice President, Chief Financial Officer, Director
and Treasurer of Metromedia International Group, Inc., a global communications
company, Executive Vice President and a Director of Big City Radio, Inc., the
President of Kluge & Company, Senior Vice President of Metromedia Company and a
citizen of the United States. Ms. Kessel's principal business address is c/o
Metromedia Company, One Meadowlands Plaza, East Rutherford, NJ 07073-2137, and
her principal occupation is serving as Senior Vice President of Metromedia
Company.

         John W. Kluge is a Director of Metromedia. Mr. Kluge is also the
Chairman of the Board of Directors of Metromedia International Group, Inc., a
global communications company, the Chairman, President and Chief Executive
Officer of Metromedia Company, and a citizen of the United States. Mr. Kluge's
principal business address is c/o Metromedia Company, One Meadowlands Plaza,
East Rutherford, NJ 07073-2137 and his principal occupation is serving as the
Chairman and President of Metromedia Company.

         David Rockefeller is a Director of Metromedia. Mr. Rockefeller is also
the Chairman of the Board of Directors of The Chase Manhattan Bank's
International Advisory Committee, Chairman of the Board of Directors of
Rockefeller Center Properties, Inc. and a Director of Rockefeller & Co., Inc., a
privately-owned investment management firm and its parent corporation,
Rockefeller Financial Services, Inc. Mr. Rockefeller is a citizen of the United
States. Mr. Rockefeller's principal business address is c/o Rockefeller & Co.,
Inc., 30 Rockefeller Plaza, New York, NY 10112.

         Stuart Subotnick is a Director of Metromedia. Mr. Subotnick is also the
President and Chief Executive Officer and Vice Chairman of the Board of
Directors of Metromedia International Group, Inc., a global communications
company, the Executive Vice President of Metromedia Company, the Chairman of the
Board of Directors of Big City Radio, Inc. and a citizen of the United States.
Mr. Subotnick's principal business address is c/o Metromedia Company, One
Meadowlands Plaza, East Rutherford, NJ 07073-2137 and his principal occupation
is serving as the Executive Vice President of Metromedia Company.


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 7 OF 11


         Arnold L. Wadler is Executive Vice President, General Counsel and
Secretary of Metromedia. Mr. Wadler is also Executive Vice President, General
Counsel, Director, and Secretary of Metromedia International Group, Inc. and Big
City Radio, Inc., Senior Vice President, Secretary, and General Counsel of
Metromedia Company, and a citizen of the United States. Mr. Wadler's principal
business address is c/o Metromedia Company, One Meadowlands Plaza, East
Rutherford, NJ 07073-2137, and his principal occupation is serving as an
executive of Metromedia Company.

         Leonard White is a Director of Metromedia. Mr. White is also a Director
of Metromedia International Group, Inc. and Big City Radio, Inc. and a citizen
of the United States. Mr. White's principal business address is 29131 Cliffside
Drive, Malibu, CA 90265 and his principal occupation is as principal of Rigel
Enterprises, a management and private investment firm.

         The response to Items 2(d) and (e) of this Schedule is negative with
respect to each of Messrs. Garofalo, Finkelstein, Galluccio, Benedetto, Tanzi,
Kluge, Rockefeller, Subotnick, Wadler and White and Ms. Denenberg and Kessel.

ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         No shares of the Issuer's Common Stock have been purchased directly or
indirectly by any of the entities reporting herein. Rather, as an inducement for
and a condition to Metromedia's entering into the Merger Agreement, Metromedia
and the Shareholders have entered into the Voting Agreement pursuant to which
the Shareholders have agreed to vote their respective Stockholders' Shares of
Common Stock of the Issuer in favor of the Merger and against any action which
would be inconsistent with the Merger and Metromedia and the Issuer have entered
into the Option Agreement pursuant to which the Issuer has granted Metromedia an
option to purchase the Option Shares representing up to 19.9% of the outstanding
Common Stock of the Issuer (as more fully described in the Introduction to this
Schedule 13D, which is incorporated by reference herein).

ITEM 4. PURPOSE OF TRANSACTION.

         No shares of the Issuer's Common Stock have been purchased directly or
indirectly by Metromedia. Metromedia and the Shareholders have entered into the
Voting Agreement and Metromedia and the Issuer have entered into the Option
Agreement as a condition and an inducement for the execution by Metromedia of
the Merger Agreement.

         Following the Merger, the Issuer will become a wholly owned subsidiary
of Metromedia. The shares of Common Stock will be delisted from the securities
exchanges and will cease to be authorized to be quoted on the NASDAQ and other
over-the-counter markets where they it is currently listed or traded and will
cease to be registered under the Securities Exchange Act of 1934, as amended.

ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 8 OF 11


         (a) Metromedia could be deemed to have "acquired" beneficial ownership
of the shares of Common Stock to which this Schedule 13D relates only in the
sense that it and the Shareholders have entered into the Voting Agreement and it
and the Issuer have entered into the Option Agreement (as described in the
Introduction and in Item 3 of this Schedule 13D, which are incorporated by
reference herein) in order to facilitate the Merger pursuant to the Merger
Agreement. Reference is made to Items 11 and 13 on the cover page to this
Schedule 13D and to Item 2 of this Schedule 13D, which are incorporated by
reference herein, for the aggregate number and percentage (based on information
received from the Issuer) of the Common Stock which may be deemed to be
beneficially owned by Metromedia. Metromedia herein disclaims beneficial
ownership over any shares of the Common Stock, including the power to vote, to
dispose, or to direct the disposition of, any shares of Common Stock of the
Issuer. To the knowledge of Metromedia, none of the persons named in Item 2,
other than Metromedia, beneficially own any securities of the Issuer. Metromedia
disclaims membership in any group with respect to the Common Stock, by virtue of
the Voting Agreement, the Option Agreement or otherwise.

         (b) Reference is made to Items 7 through 10 on the cover page to this
Schedule 13D on page 2 and Item 2 of this Schedule 13D, which are incorporated
herein, for a description of the beneficial ownership of the Shares by
Metromedia.

         The Shareholders share the power to vote the Stockholders' Shares
beneficially owned by Metromedia. The following paragraphs provide the
applicable information required by Item 2 with respect to each of the
Shareholders, which information is based solely on information disclosed by the
Issuer in its public filings with the Securities and Exchange Commission:

         Kline Hawkes California SBIC L.P., a Delaware limited partnership,
is a venture capital fund. Its principal business address is and its
principal offices are located at 11726 San Vincente Blvd., Suite 300, Los
Angeles, California 90049.

         Frank R. Kline is a Director of the Issuer and a private equity
manager of Kline Hawkes California SBIC L.P. and a citizen of the United States.
Mr. Klines' principal business address is c/o Kline Hawkes California SBIC L.P.,
11726 San Vincente Blvd., Suite 300, Los Angeles, California 90049.

         Techgains Corp, a British Virgin Islands corporation, is a venture
fund. Its principal business address is and its principal offices are located
at 2378 W. 239th Street, Torrance, California 90501.

         Technology Associates Management Co., Ltd., a British Virgin Islands
corporation, is a venture fund manager. Its principal business address is and
its principal offices are located at 2378 W. 239th Street, Torrance,
California 90501.

         Tom Shao is a Director of the Issuer and the Managing Director of
Technology Associates Management Co., Ltd. and a citizen of the United
States. Mr. Shao's principal business address is c/o Technology Associates
Management Co., Ltd., 2378 W. 239th Street, Torrance, California 90501.

<PAGE>


CUSIP NO.  6934OT10                                              PAGE 9 OF 11


         Hui-Tzu Hu is a citizen of the Republic of China. Ms. Hu's principal
address is c/o D-Link Corporation, 2F No. 233-2 Pro-Chino Road, Tsin-Tren,
Taipei, Taiwan R.O.C.

         Sherman Tuan is the Chairman of the Board of Directors and Chief
Executive Officer of the Issuer. Mr. Tuan is a citizen of the Republic of
China. Mr. Tuan's principal business address is c/o AboveNet Communications
Inc., 50 W. San Fernando Street, Suite #1010, San Jose, California 95113.

         David Rand is the Chief Technology Officer of the Issuer and a citizen
of the United States. Mr. Rand's principal business address is c/o AboveNet
Communications Inc., 50 W. San Fernando Street, Suite #1010, San Jose,
California 95113.

         Peter C. Chen is the Vice Chairman of the Board of Directors of the
Issuer and the Chairman of the Board of Directors of Crosslink Technology
Partners, an investment firm specializing in funding and developing early
stage semi-conductor, healthcare and Internet related technology ventures.
Mr. Chen is a citizen of the United States. Mr. Chen's principal business
address is c/o Crosslink Technology Partners 2314 Walsh Avenue, Santa Clara,
CA 95150.

         To the knowledge of Metromedia, none of the persons or entities
listed in response to this Item 5(b) nor any executive officer, director or
controlling person of any of them, has, during the last five years, been
convicted in any criminal proceeding, excluding traffic violations or similar
misdemeanors.

         To the knowledge of Metromedia, none of the persons or entities listed
in response to Item 5(b) nor any executive officer, director, or controlling
person of any of them, has, during the last five years, been a party to a civil
proceeding or a judicial or administrative body of competent jurisdiction as a
result of which it was or is subject to a judgment, decree, or final order
enjoining violations of, or prohibiting or mandating activities subject to,
federal or state securities laws, or finding any violation with respect to such
laws.

         (c) None of Metromedia nor, to Metromedia's knowledge, any of the
persons or entities named in response to Item 5(a) has effected any transactions
in the Issuer's Common Stock during the past 60 days, except as otherwise set
forth in this Schedule 13-D.

         (d) To the knowledge of Metromedia, only the Shareholders have the
right to receive and the power to direct the receipt of dividends from, or the
proceeds from the sale of, the Shares of Common Stock of the Issuer.

         (e) Paragraph (e) of Item 5 is inapplicable.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
        SECURITIES OF THE ISSUER.

         Reference is made to the Introduction to this Schedule 13D, which is
incorporated by reference herein, for the description of the contracts,
arrangements, understandings, or relationships (legal or otherwise) among the
persons listed in Item 2 and between such persons and any person with respect to
any securities of the Issuer, including but not limited


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 10 OF 11


to the transfer or voting of any of the securities, finder fees, joint ventures,
loan or option agreements, puts or calls, guarantees of profits, ventures, loan
or option agreements, puts or calls, guarantees of profits, division of profits
or loss, or the giving the giving or withholding of proxies.

         In the Merger Agreement, Metromedia has agreed to cause the designation
of Messrs. Sherman Tuan and David Rand to its Board of Directors.


ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

         The following shall be filed as exhibits:

<TABLE>
<CAPTION>

Documents                                                 Exhibit No.
- ---------                                                 -----------
<S>                                                      <C>
Agreement and Plan of Merger, dated as                       99.1
of June 22, 1999, by and among the
Issuer, Metromedia and Magellan
Acquisition, Inc.

Voting Agreement, dated as of June 22,                       99.2
1999, by and among Metromedia and
the Shareholders.

Option Agreement, dated as of June 22,                       99.3
1999 by and between the Issuer and
Metromedia.
</TABLE>


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 11 OF 11


                                   SIGNATURES

         After reasonable inquiry and to the best of my knowledge and belief,
the undersigned certifies that the information set forth in this statement is
true, complete and correct.

Dated: July 1, 1999


                                  METROMEDIA FIBER NETWORK, INC.


                                  By: /s/ Arnold L. Wadler
                                     -----------------------------
                                     Name:  Arnold L. Wadler
                                     Title: Executive Vice President,
                                            General Counsel and Secretary


<PAGE>


CUSIP NO.  6934OT10                                              PAGE 12 OF 11

                                  Exhibit Index


<TABLE>
<CAPTION>

Document                                                 Exhibit No.
- --------                                                 -----------
<S>                                                      <C>
Agreement and Plan of Merger, dated as                       99.1
of June 22, 1999, by and among the
Issuer, Metromedia and Magellan
Acquisition, Inc.

Voting Agreement, dated as of June 22,                       99.2
1999, by and among Metromedia and
the Shareholders.

Option Agreement, dated as of June 22,                       99.3
1999 by and between the Issuer and
Metromedia.

</TABLE>



<PAGE>
                                                                    Exhibit 99.1

                                                                  EXECUTION COPY

================================================================================

                          AGREEMENT AND PLAN OF MERGER



                                      among



                          ABOVENET COMMUNICATIONS INC.,


                         METROMEDIA FIBER NETWORK, INC.


                                       and


                           MAGELLAN ACQUISITION, INC.






                            Dated as of June 22, 1999



================================================================================

<PAGE>


                                TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                                     Page
                                                                                     ----

<S>      <C>                                                                           <C>
RECITALS................................................................................1

ARTICLE 1  THE MERGER...................................................................2
         Section 1.1       The Merger...................................................2
         Section 1.2       Closing......................................................2
         Section 1.3       Effective Time...............................................2
         Section 1.4       The Certificate of Incorporation.............................3
         Section 1.5       The By-Laws..................................................3
         Section 1.6       Directors of Surviving Corporation...........................3
         Section 1.7       Officers of Surviving Corporation............................3

ARTICLE 2  EFFECT OF THE MERGER ON CAPITAL STOCK;
           EXCHANGE OF CERTIFICATES.....................................................3
         Section 2.1       Effect on Capital Stock......................................3
         Section 2.2       Exchange of Certificates for Shares..........................4
         Section 2.3       Treatment of Company Stock Options and Company
                           Warrants.....................................................8
         Section 2.4       No Appraisal Rights..........................................9
         Section 2.5       Adjustments to Prevent Dilution..............................9
         Section 2.6       Withholding Rights...........................................9


ARTICLE 3  REPRESENTATIONS AND WARRANTIES OF THE COMPANY...............................10
         Section 3.1       Organization and Qualification; Subsidiaries................10
         Section 3.2       Certificate of Incorporation and By-Laws....................11
         Section 3.3       Capitalization..............................................11
         Section 3.4       Authority...................................................12
         Section 3.5       No Conflict.................................................13
         Section 3.6       Governmental Required Filings and Consents..................14
         Section 3.7       Permits; Compliance with Law................................14
         Section 3.8       Securities Exchange Commission ("SEC") Filings;
                           Financial Statements........................................15
         Section 3.9       Absence of Certain Changes or Events........................16
         Section 3.10      Employee Benefit Plans......................................17
         Section 3.11      Tax Matters.................................................19
         Section 3.12      No Defaults.................................................19
         Section 3.13      Litigation..................................................19
         Section 3.14      Environmental Matters.......................................20
         Section 3.15      Intellectual Property.......................................22
         Section 3.16      Taxes.......................................................24
         Section 3.17      Non-Competition Agreements..................................25
         Section 3.18      Certain Agreements..........................................25
         Section 3.19      Real Property...............................................25

</TABLE>

                                       i

<PAGE>


<TABLE>
<CAPTION>

                                                                                    Page
                                                                                    ----
<S>      <C>                                                                           <C>
         Section 3.20      Labor Matters...............................................26
         Section 3.21      Investment Company Act......................................26
         Section 3.22      Opinion of Financial Advisor................................27
         Section 3.23      Brokers.....................................................27
         Section 3.24      Certain Statutes............................................27
         Section 3.25      Information.................................................27
         Section 3.26      Vote Required...............................................28

ARTICLE 4  REPRESENTATIONS AND WARRANTIES
           OF THE PARENT AND MERGER SUB................................................28
         Section 4.1       Organization and Qualification; Subsidiaries................28
         Section 4.2       Certificate of Incorporation and By-Laws....................29
         Section 4.3       Capitalization..............................................29
         Section 4.4       Authority...................................................30
         Section 4.5       No Conflict.................................................31
         Section 4.6       Governmental Required Filings and Consents..................32
         Section 4.7       Permits; Compliance with Law................................32
         Section 4.8       SEC Filings; Financial Statements...........................33
         Section 4.9       Absence of Certain Changes or Events........................33
         Section 4.10      Employee Benefit Plans......................................35
         Section 4.11      Tax Matters.................................................36
         Section 4.12      No Defaults.................................................36
         Section 4.13      Litigation..................................................37
         Section 4.14      Environmental Matters.......................................37
         Section 4.15      Intellectual Property.......................................38
         Section 4.16      Taxes.......................................................39
         Section 4.17      Real Property...............................................40
         Section 4.18      Labor Matters...............................................40
         Section 4.19      Investment Company Act......................................40
         Section 4.20      Opinion of Financial Advisor................................40
         Section 4.21      Brokers.....................................................41
         Section 4.22      Information.................................................41
         Section 4.23      Vote Required...............................................41
         Section 4.24      Interim Operations of Merger Sub............................41

ARTICLE 5  COVENANTS...................................................................42
         Section 5.1       Conduct of Business of the Company..........................42
         Section 5.2       Conduct of Business of the Parent Pending the Merger........45
         Section 5.3       Other Actions...............................................46
         Section 5.4       Notification of Certain Matters.............................46
         Section 5.5       Proxy Statement, Registration Statement.....................46
         Section 5.6       Stockholders Meeting........................................48
         Section 5.7       Access to Information; Confidentiality......................49
         Section 5.8       No Solicitation.............................................49
         Section 5.9       Affiliates..................................................51

</TABLE>

                                       ii

<PAGE>

<TABLE>
<CAPTION>

                                                                                    Page
                                                                                    ----
<S>      <C>                                                                           <C>
         Section 5.10      Directors' and Officers' Indemnification and Insurance......52
         Section 5.11      Letters of Accountants......................................53
         Section 5.12      Reasonable Best Efforts.....................................53
         Section 5.13      Consents; Filings; Further Action...........................54
         Section 5.14      Plan of Reorganization......................................55
         Section 5.15      Public Announcements........................................55
         Section 5.16      Obligations of Merger Sub...................................55
         Section 5.17      Listings and De-Listings....................................56
         Section 5.18      Expenses....................................................56
         Section 5.19      Takeover Statutes...........................................56
         Section 5.20      Employee Benefits...........................................56
         Section 5.21      Form S-8....................................................57
         Section 5.22      Board of Directors of the Parent............................57
         Section 5.23      Employee Stock Purchase Plan................................57

ARTICLE 6  CONDITIONS..................................................................58
         Section 6.1       Conditions to Each Party's Obligation to Effect the Merger..58
         Section 6.2       Conditions to Obligations of the Parent and Merger Sub......59
         Section 6.3       Conditions to Obligation of the Company.....................59

ARTICLE 7  TERMINATION.................................................................60
         Section 7.1       Termination.................................................60
         Section 7.2       Effect of Termination.......................................62
         Section 7.3       Amendment...................................................62
         Section 7.4       Waiver......................................................62
         Section 7.5       Expenses following Termination..............................62

ARTICLE 8  MISCELLANEOUS...............................................................64
         Section 8.1       Certain Definitions.........................................64
         Section 8.2       Non-Survival of Representations, Warranties and
                           Agreements..................................................65
         Section 8.3       Counterparts................................................65
         Section 8.4       GOVERNING LAW AND VENUE; WAIVER OF
                           JURY TRIAL..................................................65
         Section 8.5       Notices.....................................................66
         Section 8.6       Entire Agreement............................................67
         Section 8.7       No Third Party Beneficiaries................................67
         Section 8.8       Obligations of the Parent and of the Company................67
         Section 8.9       Severability................................................68
         Section 8.10      Interpretation..............................................68
         Section 8.11      Assignment..................................................68
         Section 8.12      Specific Performance........................................68

</TABLE>

                                     iii

<PAGE>

<TABLE>
<CAPTION>

EXHIBITS

<S>               <C>
Exhibit A         Form of Voting Agreement
Exhibit B         Form of Option Agreement
Exhibit C         Form of Parent Voting Agreement
Exhibit D         Form of Affiliate Letter
Exhibit E-1       Form of Parent Officer Certificate
Exhibit E-2       Form of Company Officer Certificate

</TABLE>

                                iv

<PAGE>


                             INDEX OF DEFINED TERMS

<TABLE>
<CAPTION>


Term                                                                Section
- ----                                                                -------
<S>                                                                 <C>
Acquisition Proposal............................................... 5.8(f)
Affected Employees................................................. 5.20(b)
affiliate.......................................................... 8.1(a)
Agreement.......................................................... Title
Benefit Plans...................................................... 3.10(a)
Blue Sky Laws...................................................... 3.6
business day....................................................... 8.1(b)
Certificate........................................................ 2.1(a)
Certificate of Merger.............................................. 1.3
Claims............................................................. 3.13
Closing............................................................ 1.2
Closing Date....................................................... 1.2
COBRA.............................................................. 3.10(f)
Code............................................................... Recitals
Company............................................................ Title
Company Charter Documents.......................................... 3.2
Company Common Stock............................................... 2.1(a)
Company Disclosure Letter.......................................... 3.1(b)
Company Financial Advisor.......................................... 3.22
Company Governmental Consents...................................... 3.6
Company Permits.................................................... 3.7
Company Option Plans............................................... 3.3(a)
Company Preferred Stock............................................ 3.3(a)
Company Required Consents.......................................... 3.5(b)
Company Real Property Leases....................................... 3.19
Company SEC Reports................................................ 3.8(a)
Company Share...................................................... 2.1(a)
Company Shares..................................................... 2.1(a)
Company Stock Options.............................................. 3.3(a)
Company Stockholders Meeting....................................... 5.5(a)
Company Subsidiaries............................................... 3.1(a)
Company Warrants................................................... 3.3(a)
Company Option Plans............................................... 3.3(b)
Confidentiality Agreement.......................................... 5.7(b)
Contracts.......................................................... 3.5(a)(iii)
control............................................................ 8.1(a)
controlled by...................................................... 8.1(a)
controlling........................................................ 8.1(a)
Effective Time..................................................... 1.3
Environment........................................................ 3.14
Environmental Claims............................................... 3.14
ERISA.............................................................. 3.10(a)

</TABLE>

                                  v

<PAGE>

<TABLE>
<CAPTION>

Term                                                                Section
- ----                                                                -------
<S>                                                                 <C>
ERISA Affiliate.................................................... 3.10(a)
Excess Parent Shares............................................... 2.2(d)(i)
Exchange Act....................................................... 3.6
Exchange Agent..................................................... 2.2(a)
Exchange Ratio .................................................... 2.1(a)
Exchange Trust..................................................... 2.2(d)(i)
Excluded Company Shares............................................ 2.1(a)
Expenses........................................................... 7.5(a)
GAAP............................................................... 3.8(b)
GCL................................................................ Recitals
Governmental Entity................................................ 3.6
group.............................................................. 8.1(d)
Hazardous Substance................................................ 3.14
HSR Act............................................................ 3.6
including.......................................................... 8.1(c)
Indemnified Parties................................................ 5.10(a)
Intellectual Property.............................................. 3.15(a)(ii)
Investment Company Act............................................. 3.21
IP Licenses........................................................ 3.15(a)(ii)
IRS................................................................ 3.10
Law................................................................ 3.5(a)(ii)
Liens.............................................................. 3.3(c)
Material Adverse Effect on the Company............................. 3.1(a)
Material Adverse Effect on the Parent.............................. 4.1(a)
Maximum Amount..................................................... 5.10
Merger............................................................. Recitals
Merger Consideration............................................... 2.1(a)
Merger Sub......................................................... Title
NASDAQ/NMS......................................................... 2.2(d)(ii)
Option Agreement................................................... Recitals
Parent............................................................. Title
Parent Charter Documents........................................... 4.2
Parent Class B Common Stock........................................ 4.3(a)
Parent Common Stock................................................ 2.1(a)
Parent Disclosure Letter........................................... 4.1(b)
Parent Expenses.................................................... 7.5(b)
Parent Financial Advisor........................................... 4.20
Parent Governmental Consents....................................... 4.6
Parent Permits..................................................... 4.7
Parent Preferred Stock............................................. 4.3(a)
Parent Real Property Leases........................................ 4.17
Parent SEC Reports................................................. 4.8(a)
Parent Stock Options and Warrants.................................. 4.3(a)
Parent Subsidiaries................................................ 4.1(a)

</TABLE>

                                vi

<PAGE>

<TABLE>
<CAPTION>


Term                                                                Section
- ----                                                                -------
<S>                                                                 <C>
Parent Voting Agreement............................................ 5.6(b)
Permits............................................................ 3.14
person............................................................. 8.1(d)
Plan Options....................................................... 3.3(a)
Proposed Intellectual Property Agreements.......................... 3.15(a)(iii)
Proxy Materials.................................................... 5.5(a)
Proxy Statement.................................................... 5.5(a)
Qualifying Section 7.1(f) Termination.............................. 7.5(b)
Registration Statement............................................. 5.5(a)
Registration Statement Effective Date.............................. 5.5(a)
Release............................................................ 3.14
Representatives.................................................... 5.7(a)
Requisite Company Vote............................................. 3.4(a)
Requisite Parent Vote.............................................. 4.4
Safety and Environmental Laws...................................... 3.14
SEC................................................................ 3.8
Securities Act..................................................... 3.6
Stockholders....................................................... Recitals
Software........................................................... 3.15(a)(ii)
Sub Common Stock................................................... 4.3(d)
subsidiary......................................................... 8.1(e)
subsidiaries....................................................... 8.1(e)
Superior Proposal.................................................. 5.8(a)
Surviving By-Laws.................................................. 1.5
Surviving Charter.................................................. 1.4
Surviving Corporation.............................................. 1.1
Systems............................................................ 3.15(g)
Takeover Statute................................................... 3.24
Taxes.............................................................. 3.16
Technology......................................................... 3.15(a)(ii)
Terminating Company Breach......................................... 7.1(f)
Terminating Parent Breach.......................................... 7.1(g)
Termination Amount................................................. 7.5(b)
Third Party Options................................................ 3.3(a)
under common control with.......................................... 8.1(a)
Voting Agreement................................................... Recitals
Year 2000 Compliant................................................ 3.15(g)

</TABLE>

                                  vii

<PAGE>


                          AGREEMENT AND PLAN OF MERGER


                  AGREEMENT AND PLAN OF MERGER (this "AGREEMENT"), dated as of
June 22, 1999 among AboveNet Communications Inc., a Delaware corporation (the
"COMPANY"), Metromedia Fiber Network, Inc., a Delaware corporation (the
"PARENT"), and Magellan Acquisition, Inc., a Delaware corporation and a wholly
owned subsidiary of the Parent ("MERGER SUB").


                                    RECITALS

                  WHEREAS, the respective boards of directors of each of the
Parent, Merger Sub and the Company have determined that it is advisable and in
the best interests of their respective stockholders to combine the respective
businesses of the Parent and the Company, and consequently have approved the
merger of Merger Sub with and into the Company (the "MERGER") and approved and
adopted the Merger, in accordance with the General Corporation Law of the State
of Delaware (the "GCL") and upon the terms and subject to the conditions set
forth in this Agreement;

                  WHEREAS, it is intended that, for U.S. federal income tax
purposes, the Merger shall qualify as a reorganization under the provisions of
section 368(a) of the Internal Revenue Code of 1986, as amended (the "CODE"),
and the rules and regulations promulgated under the Code and that this Agreement
be, and is hereby, adopted as a plan of reorganization for purposes of section
368 of the Code;

                  WHEREAS, concurrently with the execution of this Agreement, as
a condition to the willingness of the Parent to enter into this Agreement,
certain holders (the "STOCKHOLDERS") of Company Shares (as defined in Section
2.1(a)) are entering into the Voting Agreement with the Parent, a copy of which
is attached to this Agreement as Exhibit A (the "VOTING AGREEMENT"), providing
for, among other things, the agreement of the Shareholders to vote their
respective Company Shares in favor of approval and adoption of this Agreement
and the Merger at the Company Stockholders Meeting (as defined below);

                  WHEREAS, concurrently with the execution of this Agreement, as
a condition to the willingness of the Parent to enter into this Agreement, the
Company and the Parent are entering into an Option Agreement, a copy of which is
attached to this Agreement as Exhibit B (the "OPTION AGREEMENT"), providing for,
among other things, the grant of an option by the Company to the Parent to
acquire up to 19.9% of the Company Common Stock (as defined in Section 2.1(a))
on the terms and conditions specified in the Option Agreement;

                  WHEREAS, certain terms used in this Agreement which are not
capitalized have the meanings specified in Section 8.1; and

<PAGE>


                  WHEREAS, the Company, the Parent and Merger Sub desire to make
certain representations, warranties, covenants and agreements in connection with
this Agreement.

                  NOW, THEREFORE, in consideration of the premises, and of the
representations, warranties, covenants and agreements contained in this
Agreement, the parties agree as follows:

                                    ARTICLE 1

                                   THE MERGER

                  SECTION 1.1 THE MERGER. Upon the terms and subject to the
conditions set forth in this Agreement, at the Effective Time (as defined
below), Merger Sub shall be merged with and into the Company and the separate
corporate existence of Merger Sub shall cease. The Company shall be the
surviving corporation in the Merger (sometimes referred to as the "SURVIVING
CORPORATION") and shall continue to be governed by the laws of the State of
Delaware, and the separate corporate existence of the Company with all its
rights, privileges, immunities, powers and franchises shall continue unaffected
by the Merger. The Merger shall have the effects set forth in Section 259 of the
GCL. Without limiting the generality of the foregoing, and subject thereto, at
the Effective Time, all the properties, rights, privileges, powers and
franchises of the Company and Merger Sub shall vest in the Surviving
Corporation, and all debts, liabilities and duties of the Company and Merger Sub
shall become the debts, liabilities and duties of the Surviving Corporation.

                  SECTION 1.2 CLOSING. The closing of the Merger (the "CLOSING")
shall take place (a) at the offices of Paul, Weiss, Rifkind, Wharton & Garrison,
1285 Avenue of the Americas, New York, New York at 10:00 a.m. on the business
day on which the last to be fulfilled or waived of the conditions set forth in
Article 6 (other than those conditions that by their nature are to be satisfied
at the Closing, but subject to the fulfillment or waiver of those conditions)
shall be satisfied or waived in accordance with this Agreement or (b) at such
other place and time and/or on such other date as the Company and the Parent may
agree in writing (the "CLOSING DATE").

                  SECTION 1.3 EFFECTIVE TIME. As soon as practicable following
the Closing, the parties will cause a Certificate of Merger (the "CERTIFICATE OF
MERGER") to be signed, acknowledged and delivered for filing with the Secretary
of the State of Delaware as provided in Section 251 of the GCL. The Merger shall
become effective at the time when a Certificate of Merger has been duly filed
with the Secretary of State of the State of Delaware or such other time as shall
be agreed upon by the parties and set forth in the Certificate of Merger and in
accordance with the GCL (the "EFFECTIVE TIME").

                                      2
<PAGE>


                  SECTION 1.4 THE CERTIFICATE OF INCORPORATION. The certificate
of incorporation of Merger Sub in effect immediately prior to the Effective Time
shall, from and after the Effective Time, be the certificate of incorporation of
the Surviving Corporation (the "SURVIVING CHARTER"), until duly amended as
provided in the Surviving Charter or by applicable law.

                  SECTION 1.5 THE BY-LAWS. The by-laws of Merger Sub in effect
at the Effective Time shall, from and after the Effective Time, be the by-laws
of the Surviving Corporation (the "SURVIVING BY-LAWS"), until duly amended as
provided in the Surviving By-Laws or by applicable law.

                  SECTION 1.6 DIRECTORS OF SURVIVING CORPORATION. The directors
of Merger Sub at the Effective Time shall, from and after the Effective Time, be
the directors of the Surviving Corporation until their successors have been duly
elected or appointed and qualified or until their earlier death, resignation or
removal in accordance with the Surviving Charter and the Surviving By-Laws.

                  SECTION 1.7 OFFICERS OF SURVIVING CORPORATION. The officers of
the Company shall, from and after the Effective Time, be the officers of the
Surviving Corporation until their successors have been duly elected or appointed
and qualified or until their earlier death, resignation or removal in accordance
with the Surviving Charter and the Surviving By-Laws.


                                    ARTICLE 2

                     EFFECT OF THE MERGER ON CAPITAL STOCK;
                            EXCHANGE OF CERTIFICATES

                  SECTION 2.1 EFFECT ON CAPITAL STOCK.  At the Effective Time,
as a result of the Merger and without any action on the part of the holder of
any capital stock of the Company:

                           (a)  MERGER CONSIDERATION.  Each share (each a
"COMPANY SHARE" and together the "COMPANY SHARES") of the common stock, par
value $.001 per share, of the Company (the "COMPANY COMMON STOCK") issued and
outstanding immediately prior to the Effective Time (other than Company Shares
that are owned by the Parent, Merger Sub or any other Parent Subsidiary or
Company Shares that are owned by the Company or any Company Subsidiary and in
each case not held on behalf of third parties (collectively, "EXCLUDED COMPANY
SHARES")) shall be converted by virtue of the Merger and without any action on
the part of the holder thereof into the right to receive and become exchangeable
for 1.175 (the "EXCHANGE RATIO") shares of Class A common stock, par value $.01
per share, of the Parent (THE "PARENT COMMON STOCK").

                                      3
<PAGE>


                  The Exchange Ratio shall be subject to adjustment as provided
in Section 2.5. The shares of Parent Common Stock issuable pursuant to this
Section 2.1(a), together with cash in lieu of fractional shares of Parent Common
Stock, if any, payable pursuant to Section 2.2(d) shall collectively be referred
to as the "MERGER CONSIDERATION." At the Effective Time, all Company Shares
shall no longer be outstanding, shall be canceled and retired and shall cease to
exist, and each certificate (a "CERTIFICATE") formerly representing any Company
Shares (other than Excluded Company Shares) shall thereafter represent only the
right to receive the Merger Consideration and any distribution or dividend under
Section 2.2(b).

                           (b)  CANCELLATION OF SHARES.  Each Excluded Company
Share issued and outstanding immediately prior to the Effective Time shall, by
virtue of the Merger and without any action on the part of the holder of such
Excluded Company Share, no longer be outstanding, shall be canceled and retired
without payment of any consideration therefor and shall cease to exist.

                           (c)  MERGER SUB.  At the Effective Time, each share
of common stock, par value $.01 per share, of Merger Sub issued and outstanding
immediately prior to the Effective Time shall be converted into one validly
issued, fully paid and nonassessable share of common stock, par value $.01 per
share, of the Surviving Corporation, and the Surviving Corporation shall be a
wholly owned subsidiary of the Parent.

                  SECTION 2.2 EXCHANGE OF CERTIFICATES FOR SHARES.

                           (a)  EXCHANGE PROCEDURES.

                                (i)  Promptly after the Effective Time, the

Surviving Corporation shall cause an exchange agent selected by the Parent and
reasonably satisfactory to the Company (the "EXCHANGE AGENT") to mail to each
holder of record of a Certificate (other than Certificates in respect of
Excluded Company Shares) (A) a letter of transmittal specifying that delivery
shall be effected, and that risk of loss and title to the Certificates shall
pass, only upon delivery of the Certificates (or affidavits of loss in lieu of
Certificates) to the Exchange Agent, in a form and with other provisions
reasonably acceptable to both the Parent and the Company, and (B) instructions
for exchanging the Certificates for (1) certificates representing shares of
Parent Common Stock, and (2) cash in lieu of fractional shares.

                                (ii)  Subject to Section 2.2(f), upon surrender
of a Certificate for cancellation to the Exchange Agent together with such
letter of transmittal, duly executed, the holder of that Certificate shall be
entitled to receive in exchange (A) a certificate representing that number of
whole shares of Parent Common Stock that the holder is entitled to receive under
this Article 2, (B) a check in the amount (after giving effect to any required
tax withholding) of any cash in lieu of fractional shares that such holder has
the right to receive under the provisions of

                                      4
<PAGE>


this Article 2, and (C) a check in the amount (after giving effect to any
required tax withholding) of any distributions or dividends that such holder has
the right to receive under the provisions of Section 2.2(b), and the Certificate
so surrendered shall immediately be canceled. No interest will be paid or
accrued on any amount payable upon due surrender of the Certificates.

                                (iii)  In the event of a transfer of ownership
of Company Shares that is not registered in the transfer records of the Company,
a certificate representing the proper number of shares of Parent Common Stock,
together with a check for any cash to be paid upon the surrender of the
Certificate and any other dividends or distributions in respect of those shares,
may be issued or paid to such a transferee if the Certificate formerly
representing such Company Shares is presented to the Exchange Agent, accompanied
by all documents required to evidence and effect the transfer and to evidence
that any applicable stock transfer taxes have been paid. If any certificate for
shares of Parent Common Stock is to be issued in a name other than that in which
the surrendered Certificate is registered, it shall be a condition of such
exchange that the person requesting such exchange shall pay any transfer or
other taxes required by reason of the issuance of certificates for shares of
Parent Common Stock in a name other than that of the registered holder of the
surrendered Certificate, or shall establish to the reasonable satisfaction of
the Parent or the Exchange Agent that such tax has been paid or is not
applicable.

                                 (iv)  Until surrendered as contemplated by this
Section 2.2(a), each Certificate shall be deemed for all purposes other than the
payment of dividends or distributions at any time after the Effective Time to
represent only the right to receive the certificate representing shares of
Parent Common Stock and cash in lieu of any fractional shares of Parent Common
Stock, as contemplated by this Section 2.2(a). All shares of Parent Common
Stock, together with any cash paid under Section 2.2(b) or Section 2.2(d) issued
upon the surrender for or exchange of Certificates in accordance with the terms
of this Agreement, shall be deemed to have been issued in full satisfaction of
all rights pertaining to the Company Shares formerly represented by such
Certificates, subject, however, to the Surviving Corporation's obligation to pay
any dividends or make any other distributions with a record date prior to the
Effective Time which may have been declared or made by the Company on such
Company Shares which remain unpaid at the Effective Time.

                           (b) DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES.
Whenever a dividend or other distribution is declared by the Parent in respect
of Parent Common Stock and the record date for that dividend or other
distribution is at or after the Effective Time, that declaration shall include
dividends or other distributions in respect of all shares of Parent Common Stock
issuable under this Agreement. No dividends or other distributions in respect of
the Parent Common Stock shall be paid to any holder of any unsurrendered
Certificate until that Certificate is surrendered for exchange in accordance
with this Article 2. Subject to the effect of applicable laws, following
surrender of any such Certificate, there shall

                                      5
<PAGE>


be issued or paid to the holder of the certificates representing whole shares of
Parent Common Stock issued in exchange therefor, without interest, (i) at the
time of such surrender, the dividends or other distributions with a record date
at or after the Effective Time and a payment date on or prior to the date of
issuance of such whole shares of Parent Common Stock and not previously paid,
and (ii) at the appropriate payment date, the dividends or other distributions
payable with respect to such whole shares of Parent Common Stock with a record
date at or after the Effective Time but with a payment date subsequent to
surrender. For purposes of dividends or other distributions in respect of shares
of Parent Common Stock, all shares of Parent Common Stock to be issued pursuant
to the Merger shall be deemed issued and outstanding as of the Effective Time.

                           (c) NO FURTHER TRANSFERS. After the Effective Time,
the stock transfer books of the Company shall be closed and there shall be no
further registration of transfers on the records of the Company of the Company
Shares that were outstanding immediately prior to the Effective Time.

                           (d) FRACTIONAL SHARES.

                                 (i)  No certificates or scrip representing
fractional shares of Parent Common Stock shall be issued upon the surrender for
exchange of Certificates, and any such fractional share interests will not
entitle its owner to vote, to receive dividends or to any other rights of a
stockholder of the Parent. Notwithstanding any other provision of this
Agreement, each holder of Company Shares exchanged pursuant to the Merger who
would otherwise have been entitled to receive a fraction of a share of Parent
Common Stock (after taking into account all Company Shares then held by such
holder) shall receive from the Exchange Agent, in accordance with the provisions
of this Article 2, a cash payment in lieu of such fractional shares of Parent
Common Stock, as applicable, representing such holder's proportionate interest,
if any, in the net proceeds from the sale by the Exchange Agent in one or more
transactions (which sale transactions shall be made at such times, in such
manner and on such terms as the Exchange Agent shall determine in its reasonable
discretion) on behalf of all such holders of the aggregate of the fractional
shares of Parent Common Stock, as applicable, which would otherwise have been
issued (the "EXCESS PARENT SHARES"). Until the net proceeds of such sale or
sales have been distributed to the holders of Certificates, the Exchange Agent
will hold such proceeds in trust (the "EXCHANGE TRUST") for the holders of
Certificates. All commissions, transfer taxes and other out-of-pocket
transaction costs, including the expenses and compensation of the Exchange
Agent, incurred in connection with this sale of the Excess Parent Shares shall
be paid by the Surviving Corporation. As soon as practicable after the
determination of the amount of cash, if any, to be paid to holders of
Certificates in lieu of any fractional shares of Parent Common Stock, the
Exchange Agent shall make available such amounts to such holders of Certificates
without interest. The Exchange Agent shall determine the portion of such net
proceeds to which each holder of Company Shares shall be entitled, if any, by

                                      6
<PAGE>


multiplying the amount of the aggregate net proceeds by a fraction the numerator
of which is the amount of the fractional share interest to which such holder of
Company Shares is entitled (after taking into account all Company Shares then
held by such holder) and the denominator of which is the aggregate amount of
fractional share interests to which all holders of Certificates representing
Company Shares are entitled.

                                 (ii)  Notwithstanding the provisions of
subsection (i) of this Section 2.2(d), the Parent may elect, at its option
exercised prior to the Effective Time and in lieu of the issuance and sale of
Excess Parent Shares and the making of the payments contemplated in such
subsection, to pay to the Exchange Agent an amount in cash sufficient for the
Exchange Agent to pay each holder of Company Shares an amount in cash equal to
the product obtained by multiplying (A) the fractional share interest to which
such holder would otherwise be entitled (after taking into account all Company
Shares held at the Effective Time by such holder) by (B) the closing sales price
for a share of Parent Common Stock as quoted by The Nasdaq Stock Market's
National Market ("NASDAQ/NMS") as reported in THE WALL STREET JOURNAL (national
edition) (or if not reported thereby, any other authoritative source) on the
first business day immediately following the Effective Time and, in such case,
the Exchange Fund, all references in this Agreement to the cash proceeds of the
sale of the Excess Shares and similar references shall be deemed to mean and
refer to the payments calculated as set forth in this Section 2.2(d)(ii).

                           (e) TERMINATION OF EXCHANGE PERIOD; UNCLAIMED STOCK.
Any shares of Parent Common Stock and any portion of the Exchange Fund or of
dividends or other distributions with respect to the Parent Common Stock
deposited by the Parent with the Exchange Agent (including the proceeds of any
investments of those funds) that remains unclaimed by the stockholders of the
Company twelve months after the Effective Time shall be paid to the Parent. Any
former stockholders of the Company who have not theretofore complied with this
Article 2 shall thereafter look only to the Parent for payment of their Merger
Consideration and any dividends and other distributions issuable or payable
pursuant to Section 2.1, Section 2.2(b) and 2.2(d) upon due surrender of their
Certificates (or affidavits of loss in lieu of Certificates), in each case,
without any interest. Notwithstanding the foregoing, none of the Parent, the
Surviving Corporation, the Exchange Agent or any other person shall be liable to
any former holder of Company Shares for any amount properly delivered to a
public official under applicable abandoned property, escheat or similar laws. If
any Certificates shall not have been surrendered prior to five years after the
Effective Time (or immediately prior to such earlier date on which any Merger
Consideration in respect of such Certificate would otherwise escheat to or
become the property of any Governmental Entity), any amounts payable in respect
of such Certificate shall, to the extent permitted by applicable law, become the
property of the Surviving Corporation, free and clear of all claims or interests
of any person previously entitled to those amounts.

                                      7
<PAGE>


                           (f) LOST, STOLEN OR DESTROYED CERTIFICATES. In the
event any Certificate shall have been lost, stolen or destroyed, upon the making
of an affidavit of that fact by the person claiming such Certificate to be lost,
stolen or destroyed and the posting by such person of a bond in a reasonable
amount in the form customarily required by the Parent as indemnity against any
claim that may be made against it with respect to such Certificate, the Exchange
Agent will issue in exchange for such lost, stolen or destroyed Certificate the
shares of Parent Common Stock, any unpaid dividends or other distributions and
any cash payment in lieu of a fractional share in respect of that Certificate
issuable or payable under this Article 2 upon due surrender of and deliverable
in respect of the Company Shares represented by such Certificate under this
Agreement, in each case, without interest.

                  SECTION 2.3 TREATMENT OF COMPANY STOCK OPTIONS AND COMPANY
WARRANTS.

                           (a) The Parent and the Company shall take such
actions as are necessary to provide that at the Effective Time each outstanding
Company Stock Option (as defined in Section 3.3(a)) and Company Warrant (as
defined in Section 3.3(a)) shall be assumed by the Parent and adjusted in
accordance with the terms thereof and this Agreement to be exercisable to
purchase shares of Parent Common Stock, as provided below. Following the
Effective Time, each Company Stock Option and Company Warrant shall continue to
have, and shall be subject to, the same terms and conditions set forth in the
Company Option Plans (as defined in Section 3.3(a)) or any other agreement
pursuant to which such Company Stock Option or Company Warrant was subject
immediately prior to the Effective Time, as the case may be, except that (i)
each such Company Stock Option and Company Warrant, as the case may be, shall be
exercisable for that number of shares of Parent Common Stock equal to the
product of (x) the aggregate number of shares of Company Common Stock for which
such Company Stock Option or Company Warrant, as the case may be, was
exercisable and (y) the Exchange Ratio, rounded, in the case of any Company
Stock Options, other than an "incentive stock option" (within the meaning of
section 422 of the Code), or Company Warrant, up, and, in the case of any
Company Stock Option that is an incentive stock option, down, to the nearest
whole share, if necessary, and (ii) the exercise price per share of such Company
Stock Option or Company Warrant shall be equal to the aggregate exercise prices
of such Company Stock Option or Company Warrant immediately prior to the
Effective Time divided by the number of shares of Parent Common Stock for which
such Company Stock Option or Company Warrant shall be exercisable as determined
in accordance with the preceding clause (i), rounded to the nearest cent, if
necessary.

                           (b) As soon as practicable following the Effective
Time, the Parent shall deliver to the holders of Company Stock Options and
holders of Company Warrants appropriate notices setting forth such holders'
rights after giving effect to the Merger and the provisions set forth above. At
or prior to the Effective Time, the Company shall make such amendments and take
such other actions, if any,

                                      8
<PAGE>


to the Company Option Plans or such other agreement pursuant to which the
Company Stock Options or Company Warrants were issued as shall be necessary to
permit the assumption and adjustment referred to in this Section 2.3.

                           (c) It is the intention of the parties that, to the
extent that any Company Stock Option constituted an incentive stock option
immediately prior to the Effective Time, such option continue to qualify as an
incentive stock option to the maximum extent permitted by section 422 of the
Code, and that the assumption of the Company Stock Options provided by this
Section 2.3 satisfy the conditions of section 424(a) of the Code. The Parent
shall comply with the terms of the Company Option Plans and ensure, to the
extent required by, and subject to the provisions of, such Company Option Plans,
that the Company Stock Options that qualified as incentive stock options prior
to the Effective Time continue to qualify as incentive stock options after the
Effective Time.

                           (d) The Parent shall take all corporate action
necessary to reserve for issuance a sufficient number of shares of Parent Common
Stock for delivery upon exercise of Company Stock Options and Company Warrants
at and after the Effective Time.

                  SECTION 2.4 NO APPRAISAL RIGHTS.  In accordance with Section
262(b)(1) of the GCL, no appraisal rights shall be available to holders of
Company Shares in connection with the Merger.

                  SECTION 2.5 ADJUSTMENTS TO PREVENT DILUTION. In the event that
prior to the Effective Time there is a change in the number of Company Shares or
shares of Parent Common Stock or securities or other instruments convertible or
exchangeable into or exercisable for Company Shares or shares of Parent Common
Stock issued and outstanding including as a result of a distribution,
redemption, repurchase, reclassification, combination or exchange of shares,
stock split (including a reverse stock split), stock dividend or distribution or
other similar transaction, the Exchange Ratio shall be equitably adjusted to
eliminate the effects of that event.

                  SECTION 2.6 WITHHOLDING RIGHTS. Each of the Surviving
Corporation and Parent shall be entitled to deduct and withhold from any amounts
otherwise payable pursuant to this Agreement to any holder of a Certificate such
amounts as it is required to deduct and withhold with respect to the making of
such payment under the Code, or any provisions of Law (as defined in Section
3.5) related to applicable Taxes (as defined in Section 3.16). To the extent
that amounts are so withheld by the Surviving Corporation or Parent, as the case
may be, such withheld amounts shall be treated for purposes of this agreement as
having been paid to the holder of a Certificate in respect to which such
deduction and withholding was made by the Surviving Corporation or Parent, as
the case may be.

                                      9
<PAGE>


                                    ARTICLE 3

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                  The Company represents and warrants to the Parent and Merger
Sub that, except for inaccuracies in the representations and warranties
resulting from compliance with the provisions of this Agreement and performance
of the transactions contemplated hereby or inaccuracies resulting from actions
or omissions permitted by the terms of Section 5.1 hereof:

                  SECTION 3.1 ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.

                           (a) Each of the Company and each subsidiary of the
Company (collectively, the "COMPANY SUBSIDIARIES") has been duly organized and
is validly existing and in good standing under the laws of the jurisdiction of
its incorporation or organization, as the case may be, and has the requisite
power and authority to own, lease and operate its properties and to carry on its
business as it is now being conducted. Each of the Company and each Company
Subsidiary is duly qualified or licensed to do business, and is in good
standing, in each jurisdiction where the character of the properties owned,
leased or operated by it or the nature of its business makes such qualification
or licensing necessary, except for such failures to be so qualified or licensed
and in good standing that, individually or in the aggregate, have not resulted
and could not reasonably be expected to result in a Material Adverse Effect on
the Company. For purposes of this Agreement, "MATERIAL ADVERSE EFFECT ON THE
COMPANY" means any change in or effect on the business, assets, properties,
results of operations, or condition (financial or otherwise) of the Company or
any Company Subsidiaries that is or could reasonably be expected to be
materially adverse to the Company and the Company Subsidiaries, taken as a
whole, or that could reasonably be expected to materially impair the ability of
the Company to perform its obligations under this Agreement or the Option
Agreement or consummate the Merger and the other transactions contemplated
hereby or thereby, except for any change or effect (i) relating to the economy
in general or (ii) relating to the industries in which the Company and the
Company Subsidiaries operate.

                           (b) Section 3.1(b) of the Disclosure Letter delivered
to the Parent and Merger Sub by the Company at or prior to the execution of this
Agreement (the "COMPANY DISCLOSURE LETTER") sets forth a complete and correct
list of all of the Company Subsidiaries, including the jurisdiction of
incorporation and the ownership or other interest therein of the Company or any
Company Subsidiary. Except as set forth in Section 3.1(b) of the Company
Disclosure Letter, neither the Company nor any Company Subsidiary holds any
material interest in any person other than the Company Subsidiaries so listed.

                                      10
<PAGE>


                  SECTION 3.2 CERTIFICATE OF INCORPORATION AND BY-LAWS. The
copies of the Company's certificate of incorporation and by-laws, each as
amended through the date of this Agreement (collectively, the "COMPANY CHARTER
DOCUMENTS") that are incorporated by reference in, as exhibits to, the Company's
quarterly report on Form 10-Q for the quarter ended March 31, 1999 are complete
and correct copies of those documents. The Company has made available to Parent
complete and correct copies of all organizational documents of each Company
Subsidiary. The Company Charter Documents and all comparable organizational
documents of the Company Subsidiaries are in full force and effect. Except as
set forth in Section 3.2 of the Company Disclosure Letter, neither the Company
nor any Company Subsidiary is in violation of any of the provisions of its
organizational documents.

                  SECTION 3.3 CAPITALIZATION.

                           (a) The authorized capital stock of the Company
consists of (i) 60,000,000 shares of Company Common Stock and (ii) 5,000,000
shares of Preferred Stock, par value $.001 per share (the "COMPANY PREFERRED
STOCK"). As of June 15, 1999, (i) 34,550,550 shares of Company Common Stock were
issued and outstanding, all of which were validly issued and are fully paid,
nonassessable and not subject to preemptive rights, (ii) no shares of Company
Preferred Stock were issued or outstanding and (iii) (A) 5,095,351 shares of
Company Common Stock were reserved for issuance upon the exercise of outstanding
stock options (the "PLAN OPTIONS") granted pursuant to the Company's 1998 Stock
Incentive Plan, 1997 Stock Plan and 1996 Stock Option Plan (the "COMPANY OPTION
PLANS"), (B) 1,127,596 shares of Company Common Stock were reserved for issuance
pursuant to options available for grant under the Company Option Plans, (C)
300,000 shares of Company Common Stock were reserved for issuance upon exercise
of outstanding options listed in Section 3.3 of the Company Disclosure Letter
(the "THIRD PARTY OPTIONS" and, together with the Plan Options, the "COMPANY
STOCK OPTIONS"), (D) 333,004 shares of Company Common Stock were reserved for
issuance upon the exercise of outstanding warrants (the "COMPANY WARRANTS") and
(E) 131,591 shares of Company Common Stock reserved for issuance under the
Company's 1998 Employee Stock Purchase Plan (the "ESPP"). Section 3.3(a) of the
Company Disclosure Letter sets forth a complete and correct list as of June 15,
1999 of the holders of all Company Stock Options and Company Warrants, the
number of shares subject to each such option or warrant and the exercise price
thereof. Except as set forth above, as of June 15, 1999, no shares of capital
stock or other voting securities of the Company were issued, reserved for
issuance or outstanding and since such date, no shares of capital stock or other
voting securities or options in respect thereof have been issued except upon the
exercise of the Company Stock Options or Company Warrants outstanding on June
15, 1999 and except pursuant to the ESPP as in effect on the date hereof.

                           (b) Except as set forth in Section 3.3(b) of the
Company Disclosure Letter and except for (i) outstanding Company Stock Options,
(ii) outstanding Third Party Options, (iii) outstanding Company Warrants, and

                                      11
<PAGE>


(iv) pursuant to the ESPP, there are no options, warrants, conversion rights,
stock appreciation rights, redemption rights, repurchase rights or other rights,
agreements, arrangements or commitments of any character to which the Company is
a party or by which the Company is bound relating to the issued or unissued
capital stock of the Company or any Company Subsidiary or obligating the Company
or any Company Subsidiary to issue or sell any shares of capital stock of, or
other equity interests in, the Company or any Company Subsidiary.

                           (c) All shares of Company Common Stock subject to
issuance, upon issuance prior to the Effective Time on the terms and conditions
specified in the instruments under which they are issuable, will be duly
authorized, validly issued, fully paid, nonassessable and will not be subject to
preemptive rights. Except as set forth in Section 3.3(c) of the Company
Disclosure Letter, there are no outstanding contractual obligations of the
Company or any Company Subsidiary to repurchase, redeem or otherwise acquire any
shares of Company Common Stock or any capital stock of any Company Subsidiary or
to effect the registration of any shares of Company Common Stock or other
Company securities under the Securities Act (as defined in Section 3.6). Each
outstanding share of capital stock of each Company Subsidiary is duly
authorized, validly issued, fully paid, nonassessable and not subject to
preemptive rights and each such share owned by the Company or a Company
Subsidiary is free and clear of all security interests, liens, claims, pledges,
options, rights of first refusal, limitations on the Company's or such other
Company Subsidiary's voting rights, charges and other encumbrances of any nature
whatsoever (collectively, "LIENS"), except for Liens under applicable Law.
Except as set forth in Section 3.3 of the Company Disclosure Letter there are no
outstanding material contractual obligations of the Company or any Company
Subsidiary to provide funds to, or make any investment (in the form of a loan,
capital contribution or otherwise) in, any Company Subsidiary that is not wholly
owned by the Company or in any other person.

                  SECTION 3.4 AUTHORITY.

                           (a) The Company has all necessary corporate power and
authority to execute and deliver this Agreement and the Option Agreement, to
perform its obligations hereunder and thereunder and to consummate the Merger
and the other transactions contemplated hereby and thereby to be consummated by
the Company. The execution and delivery of this Agreement and the Option
Agreement by the Company and the consummation by the Company of such
transactions have been duly and validly authorized by all necessary corporate
action and no other corporate proceedings on the part of the Company are
necessary to authorize this Agreement and the Option Agreement or to consummate
such transactions, other than, with respect to the Merger, the adoption of this
Agreement by stockholders of the Company representing a majority of the Company
Common Stock entitled to vote thereon (the "REQUISITE COMPANY VOTE"). This
Agreement and the Option Agreement have been duly authorized and validly
executed and delivered by the

                                      12
<PAGE>


Company and, assuming the due authorization, execution and delivery by the other
parties hereto, constitute legal, valid and binding obligations of the Company,
enforceable against the Company in accordance with their respective terms,
subject to bankruptcy, insolvency, reorganization, moratorium or other laws now
or hereafter in effect relating to creditors' rights generally or to general
principles of equity.

                           (b) The Board of Directors of the Company (i) has
unanimously adopted the plan of merger set forth in this Agreement and approved
this Agreement and the other transactions contemplated by this Agreement and
(ii) has declared that the Merger and this Agreement and the other transactions
contemplated by this Agreement are advisable and recommended that the
stockholders of the Company adopt this Agreement.

                  SECTION 3.5 NO CONFLICT.

                           (a) The execution and delivery of this Agreement and
the Option Agreement by the Company do not, and the performance of this
Agreement and the Option Agreement by the Company will not:

                                (i)  conflict with or violate any provision of
      any Company Charter Document or any equivalent organizational documents of
      any Company Subsidiary;

                                (ii)  assuming effectuation of all filings and
      registrations with, termination or expiration of all applicable waiting
      periods imposed by, and receipt of all consents, approvals, authorizations
      and permits of all Governmental Entities indicated as required in Section
      3.6 below, receipt of all Company Required Consents, and receipt of the
      approval of this Agreement by the stockholders of the Company as required
      by the GCL, conflict with or violate any foreign or domestic law, statute,
      ordinance, rule, regulation, order, judgment or decree ("LAW") applicable
      to the Company or any Company Subsidiary or by which any property or asset
      of the Company or any Company Subsidiary is or may be bound or affected,
      except for such conflicts or violations which, individually or in the
      aggregate, have not resulted and could not reasonably be expected to
      result in a Material Adverse Effect on the Company; or

                                (iii)  except as set forth in Section 3.5(a)
      (iii) of the Company Disclosure Letter, result in any breach of or
      constitute a default (or an event which with or without notice or lapse of
      time or both would become a default) under, or modification in a manner
      materially adverse to the Company and the Company Subsidiaries of any
      right or benefit under or give to others any right of termination,
      amendment, acceleration, repayment or repurchase, increased payments or
      cancellation of or result in the creation of a Lien on any property or
      asset of the Company or any Company Subsidiary

                                      13
<PAGE>


         under any note, bond, mortgage, indenture, contract, agreement,
         commitment, lease, license, permit, franchise or other instrument or
         obligation (collectively, "CONTRACTS") to which the Company or any
         Company Subsidiary is a party or by which any of them or their assets
         or properties is or may be bound or affected, except for such breaches,
         defaults or other occurrences which, individually or in the aggregate,
         have not resulted and could not reasonably be expected to result in a
         Material Adverse Effect on the Company.

                           (b) Section 3.5(b) of the Company Disclosure Letter
sets forth a correct and complete list of all material Contracts to which the
Company or any Company Subsidiaries are a party or by which they or their assets
or properties is or may be bound or affected under which consents or waivers are
required prior to consummation of the transactions contemplated by this
Agreement and the Option Agreement (collectively, the "COMPANY REQUIRED
CONSENTS").

                  SECTION 3.6 GOVERNMENTAL REQUIRED FILINGS AND CONSENTS. The
execution and delivery of this Agreement and the Option Agreement by the Company
do not, and the performance of this Agreement and the Option Agreement by the
Company will not, require any material consent, approval, authorization or
permit of, or filing with or notification to, any domestic or foreign national,
federal, state, provincial or local governmental, regulatory or administrative
authority, agency, commission, court, tribunal or arbitral body or
self-regulated entity (each, a "GOVERNMENTAL ENTITY"), except (i) for those
consents or approvals set forth in Section 3.6 of the Company Disclosure Letter
(the "COMPANY GOVERNMENTAL CONSENTS"), (ii) for applicable requirements of the
Securities Exchange Act of 1934, as amended (together with the rules and
regulations promulgated thereunder, the "EXCHANGE ACT"), and the Securities Act
of 1933, as amended (together with the rules and regulations promulgated
thereunder, the "SECURITIES ACT"), (iii) for applicable requirements of state
securities or "blue sky" laws ("BLUE SKY LAWS"), (iv) for the pre-merger
notification requirements of the Hart-Scott-Rodino Antitrust Improvements Act of
1976, as amended, and the rules and regulations promulgated thereunder (the "HSR
ACT"), (v) for approval of the listing of the additional shares of Company
Common Stock by NASDAQ/NMS that may be issued pursuant to the Option Agreement
and (vi) for the filing of the Certificate of Merger as required by the GCL.

                  SECTION 3.7 PERMITS; COMPLIANCE WITH LAW. Each of the Company
and the Company Subsidiaries is in possession of all franchises, grants,
authorizations, licenses, permits, easements, variances, exceptions, consents,
certificates, approvals and orders of any Governmental Entity necessary for the
Company or any Company Subsidiary to own, lease and operate its properties or to
carry on its business as it is now being conducted (collectively, the "COMPANY
PERMITS"), except where the failure to have, or the suspension or cancellation
of, any of the Company Permits, individually or in the aggregate, has not
resulted and could not reasonably be expected to result in a Material Adverse
Effect on the Company, and, as of the date of this Agreement, no suspension or
cancellation of any of the

                                      14
<PAGE>


Company Permits is pending or, to the knowledge of the Company, threatened,
except where the failure to have, or the suspension or cancellation of, any of
the Company Permits, individually or in the aggregate, has not resulted and
could not reasonably be expected to result in a Material Adverse Effect on the
Company. Neither the Company nor any Company Subsidiary is in conflict with, or
in default or violation of, (i) any Law applicable to the Company or any Company
Subsidiary or by which any property or asset of the Company or any Company
Subsidiary is or may be bound or affected or (ii) any Company Permits, except in
the case of clauses (i) and (ii) any such conflicts, defaults or violations
which, individually or in the aggregate, have not resulted and could not
reasonably be expected to result in a Material Adverse Effect on the Company.

                  SECTION 3.8 SECURITIES EXCHANGE COMMISSION ("SEC") FILINGS;
FINANCIAL STATEMENTS.

                           (a) The Company has filed all forms, reports,
registration statements and other documents (including all exhibits, annexes,
supplements and amendments to such documents) required to be filed by it under
the Exchange Act and the Securities Act since September 10, 1998 (collectively,
including any such documents filed subsequent to the date of this Agreement, the
"COMPANY SEC REPORTS") and the Company has made available to the Parent each
Company SEC Report filed with the SEC. The Company SEC Reports, including any
financial statements or schedules included or incorporated by reference, (i)
comply in all material respects with the requirements of the Exchange Act or the
Securities Act or both, as the case may be, applicable to those Company SEC
Reports and (ii) did not at the time they were filed contain any untrue
statement of a material fact or omit to state a material fact required to be
stated or necessary in order to make the statements made in those Company SEC
Reports, in the light of the circumstances under which they were made, not
misleading. No Company Subsidiary is subject to the periodic reporting
requirements of the Exchange Act or is otherwise required to file any documents
with the SEC or any national securities exchange or quotation service or
comparable Governmental Entity.

                           (b) Each of the consolidated financial statements
included in or incorporated by reference into the Company SEC Reports (including
the related notes and schedules) comply as to form in all material respects with
the published rules and regulations of the SEC with respect thereto, have been
prepared in accordance with generally accepted accounting principles ("GAAP")
applied on a consistent basis throughout the periods involved (except as may be
indicated in the notes thereto or, in the case of the unaudited interim
financial statements, as permitted by Form 10-Q of the SEC) and fairly present
in all material respects (subject, in the case of the unaudited interim
financial statements, to normal, year-end audit adjustments) the consolidated
financial position of the Company and its Subsidiaries as at the dates thereof
and the consolidated results of their operations and cash flows for the periods
then ended.

                                      15
<PAGE>


                           (c) Except as and to the extent set forth on the
consolidated balance sheet of the Company and the consolidated Company
Subsidiaries as of March 31, 1999 including the related notes and except as set
forth in Section 3.8(c) of the Company Disclosure Letter or in any Company SEC
Report filed prior to the date hereof, neither the Company nor any Company
Subsidiary has any liabilities or obligations of any nature (whether accrued,
absolute, contingent or otherwise) that would be required to be reflected on a
balance sheet or in the related notes prepared in accordance with GAAP, except
for liabilities or obligations incurred since March 31, 1999 that, individually
or in the aggregate, have not resulted and could not reasonably be expected to
result in a Material Adverse Effect on the Company and except for liabilities or
obligations under this Agreement and the transactions contemplated hereby.

                  SECTION 3.9 ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as
described in Section 3.9 of the Company Disclosure Letter and except as set
forth in any Company SEC Report filed prior to the date hereof, since March 31,
1999, the Company and the Company Subsidiaries have conducted their businesses
in the ordinary course and in a manner consistent with past practice and, since
such date, except as permitted by Section 5.1 of this Agreement with respect to
clauses (c-i) below there has not been:

                           (a) any Material Adverse Effect on the Company;

                           (b) any damage, destruction or other casualty loss
with respect to any asset or property owned, leased or otherwise used by the
Company or any Company Subsidiaries, whether or not covered by insurance, which
damage, destruction or loss, individually or in the aggregate, has resulted or
could reasonably be expected to result in a Material Adverse Effect on the
Company;

                           (c) any material change by the Company in its or any
Company Subsidiary's accounting methods, principles or practices, except as
required by GAAP or by applicable Law;

                           (d) any declaration, setting aside or payment of any
dividend or distribution in respect of Company Shares or any redemption,
purchase or other acquisition of any of the Company's securities;

                           (e) any increase in the compensation or benefits or
establishment of any bonus, insurance, severance, deferred compensation,
pension, retirement, profit sharing, stock option (including, the granting of
stock options, stock appreciation rights, performance awards or restricted stock
awards), stock purchase or other employee benefit plan, or any other increase in
the compensation payable or to become payable to any executive officers of the
Company or any Company Subsidiary, in each case except in the ordinary course of
business consistent with past practice or except as required by applicable Law;

                                      16
<PAGE>


                           (f) (i) any incurrence or assumption by the Company
or any Company Subsidiary of any indebtedness for borrowed money or (ii) any
guarantee, endorsement or other incurrence or assumption material liability
(whether directly, contingently or otherwise) by the Company or any Company
Subsidiary for the obligations of any other person (other than any wholly owned
Company Subsidiary), in each case other than in the ordinary course of business
consistent with past practice;

                           (g) any creation or assumption by the Company or any
Company Subsidiary of any Lien on any material asset of the Company or any
Company Subsidiary, other than in the ordinary course of business, consistent
with past practice;

                           (h) any making of any loan, advance or capital
contribution to or investment in any person by the Company or any Company
Subsidiary, other than in the ordinary course of business, consistent with past
practice; or

                           (i) (i) any Contract entered into by the Company or
any Company Subsidiary relating to any material acquisition or disposition of
any assets or business, or (ii) any modification, amendment, assignment or
termination of or relinquishment by the Company or any Company Subsidiary of any
rights under any other Contract (including any insurance policy naming it as a
beneficiary or a loss payable payee) that does or could reasonably be expected
to have, individually or in the aggregate, a Material Adverse Effect on the
Company, other than transactions, commitments, contracts or agreements in the
ordinary course of business consistent with past practice or those contemplated
by this Agreement.

                  SECTION 3.10 EMPLOYEE BENEFIT PLANS.

                           (a) Except as set forth in Section 3.10(a) of the
Company Disclosure Letter and except as could not, individually or in the
aggregate, has not and could not reasonably be expected to have a Material
Adverse Effect on the Company: (A) each pension, retirement, savings,
disability, medical, dental, health, life, death benefit, group insurance,
profit sharing, deferred compensation, stock option, bonus, incentive, severance
pay, or other employee benefit plan, trust, arrangement, contract, commitment,
agreement or policy (collectively, "BENEFIT PLANS") of the Company or any
Company Subsidiary has been administered and is in compliance with the terms of
such plan and all applicable laws, rules and regulations, (B) no "reportable
event" (as such term is used in section 4043 of the Employee Retirement Income
Security Act of 1974, as amended ("ERISA") (other than those events for which
the 30 day notice has been waived pursuant to the regulations), "prohibited
transaction" (as such term is used in section 406 of ERISA or section 4975 of
the Code) or "accumulated funding deficiency" (as such term is used in section
412 or 4971 of the Code) has heretofore occurred with respect to any Company
Benefit Plan or any Benefit Plan of its affiliates and any trade or business
which is or within the past five years has been under common control or which is
or

                                      17
<PAGE>


within the past five years has been treated as a single employer with any of
them under section 414(b), (c), (m) or (o) of the Code ("ERISA AFFILIATE") and
(C) the Company Benefit Plans intended to qualify under section 401 of the Code
are so qualified and the trusts maintained pursuant thereto are exempt from
federal income taxation under section 501 of the Code, and nothing has occurred
with respect to the operation of the Company Benefit Plans which could cause the
loss of such qualification or exemption or the imposition of any liability,
penalty or tax under ERISA or the Code and each Company Benefit Plan intended to
qualify under section 401(a) of the Code has received a favorable determination
from the Internal Revenue Service (the "IRS") regarding its qualified status and
no notice has been received from the IRS with respect to the revocation of such
qualification.

                           (b) There is no litigation or administrative or other
proceeding involving any Company Benefit Plan nor has the Company or any Company
Subsidiary received notice that any such proceeding is threatened, in each case
where an adverse determination, individually or in the aggregate, has had or
could reasonably be expected to have a Material Adverse Effect on the Company.
Neither the Company nor any Company Subsidiary has incurred, nor, to the
Company's knowledge, is reasonably likely to incur any withdrawal liability with
respect to any "multiemployer plan" (within the meaning of section 3(37) of
ERISA) that, individually or in the aggregate, has had or could reasonably be
expected to have a Material Adverse Effect on the Company. The termination of,
or withdrawal from, any Company Benefit Plan or multiemployer plan to which the
Company or any Company Subsidiaries contributes, on or prior to the Closing
Date, will not subject the Company or any Company Subsidiary to any liability
under Title IV of ERISA that, individually or in the aggregate, has had or could
reasonably be expected to have a Material Adverse Effect on the Company.

                           (c) True, correct and complete copies of the
following documents, with respect to each of the Company Benefit Plans (other
than a multiemployer plan), have been made available or delivered to Parent by
the Company, to the extent applicable: (i) any plans, all amendments thereto and
related trust documents, and amendments thereto; (ii) the most recent Forms 5500
and all schedules thereto and the most recent actuarial report, if any; (iii)
the most recent IRS determination letter; (iv) summary plan descriptions; (v)
written communications to employees relating to the Company Benefit Plans; and
(vi) written descriptions of all non-written agreements relating to the Company
Benefit Plans.

                           (d) Except as set forth in Section 3.10(d) of the
Company Disclosure Letter, none of the Company Benefit Plans provide for
post-employment life or health insurance, benefits or coverage for any
participant or any beneficiary of a participant, except as may be required under
the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended ("COBRA")
and at the expense of the participant or the participant's beneficiary. Except
as set forth in Section 3.10(d) of the Company Disclosure Letter and except as
individually or in the aggregate do not have or could not reasonably be expected
to have a Material Adverse Effect on the

                                      18
<PAGE>


Company, each of the Company and any ERISA Affiliate which maintains a "group
health plan" within the meaning section 5000(b)(1) of the Code has complied with
the notice and continuation requirements of section 4980B of the Code, COBRA,
Part 6 of Subtitle B of Title I of ERISA and the regulations thereunder.

                           (e) Except as sect forth in Section 3.10(e) of the
Company Disclosure Letter, neither the execution and delivery of this Agreement
nor the consummation of the transactions contemplated hereby will (i) result in
any payment becoming due to any employee (current, former or retired) of the
Company, (ii) increase any benefits otherwise payable under any Company Benefit
Plan or (iii) result in the acceleration of the time of payment or vesting of
any such benefits under any such plan.

                           (f) Except as set forth in Section 3.10(f) of the
Company Disclosure Letter or as disclosed in any Company SEC Report filed prior
to the date hereof, there is no contract, plan or arrangement (written or
otherwise) covering any employee or former employee of the Company or any
Subsidiary that, individually or collectively, could give rise to the payment of
any amount that would not be deductible pursuant to the terms of section 280G of
the Code and neither the Company nor any Company Subsidiary has made any payment
that would not be deductible pursuant to the terms of section 162(m) of the
Code.

                  SECTION 3.11 TAX MATTERS. Neither the Company nor, to the
knowledge of the Company, any of its affiliates has taken or agreed to take any
action, nor is the Company aware of any agreement, plan or other circumstance
that would prevent the Merger from constituting a transaction qualifying as a
reorganization under section 368(a) of the Code.

                  SECTION 3.12 NO DEFAULTS. Except as listed or described in
Section 3.12 of the Company Disclosure Letter and except as filed as an exhibit
to any Company SEC Report filed prior to the date hereof, there is no Contract
that is material to the business, financial condition or results of operations
of the Company and the Company Subsidiaries taken as a whole. Neither the
Company nor any Company Subsidiary is in violation of or in default under (nor
does there exist any condition which with the passage of time or the giving of
notice would cause such a violation of or default under) any Contract to which
it is a party or by which it or any of its properties or assets is or may be
bound or affected, except for violations or defaults that, individually or in
the aggregate, have not resulted and could not reasonably be expected to result
in a Material Adverse Effect on the Company.

                  SECTION 3.13 LITIGATION. Except as described in Section 3.13
of the Company Disclosure Letter or in any Company SEC Reports filed prior to
the date hereof, there is no suit, claim, action, or proceeding (collectively,
"CLAIMS") pending or, to the knowledge of the Company, threatened against the
Company or any Company Subsidiary before any Governmental Entity nor to the
Company's knowledge are there any investigations or reviews by any Governmental
Entity

                                      19
<PAGE>


pending or threatened against, relating to or affecting the Company or any of
the Company Subsidiaries, that, if adversely determined, individually or in the
aggregate, has resulted or could reasonably be expected to result in a Material
Adverse Effect on the Company. Neither the Company nor any Company Subsidiary is
subject to any outstanding order, writ, injunction or decree of any court or
Governmental Entity which, individually or in the aggregate, has resulted or
could reasonably be expected to result in a Material Adverse Effect on the
Company.

                  SECTION 3.14 ENVIRONMENTAL MATTERS.  Except as disclosed on
Section 3.14 of the Company Disclosure Letter and except as could not reasonably
be expected to have a Material Adverse Effect on the Company:

                           (a) Neither the Company nor any Company Subsidiary is
or has been in violation of any applicable Safety and Environmental Law (as
hereafter defined);

                           (b) To the Company's knowledge, the Company and each
Company Subsidiary have all Company Permits required pursuant to Safety and
Environmental Laws that are material to the conduct of the business of the
Company or any Company Subsidiary, all such Permits are in full force and
effect, no action or proceeding to revoke, limit or modify any of such Permits
is pending, and the Company and each Company Subsidiary is in compliance in all
material respects with all terms and conditions thereof;

                           (c) Neither the Company nor any Company Subsidiary
has received any Environmental Claim (as hereafter defined);

                           (d) To the Company's knowledge, there is not now and
has not been at any time in the past a Release or threatened Release (as
hereafter defined) of Hazardous Substances into the Environment for which the
Company or any Company Subsidiary is directly or indirectly responsible; and

                           (e) To the Company's knowledge, there is not now and
has not been at any time in the past at, on or in any of the real properties
owned, leased or operated by the Company or any Company Subsidiary, and, to the
Company's knowledge, was not at, on or in any real property previously owned,
leased or operated by the Company or any Company Subsidiary or any predecessor:
(i) any generation, use, handling, Release, treatment, recycling, storage or
disposal of any Hazardous Substances, (ii) any underground storage tank, surface
impoundment, lagoon or other containment facility (past or present) for the
temporary or permanent storage, treatment or disposal of Hazardous Substances,
(iii) any asbestos-containing material in a condition requiring abatement, (iv)
any Release or threatened Release, or any visible signs of Releases or
threatened Releases, of a Hazardous Substance to the Environment in form or
quantity requiring remedial action under Safety and Environmental Laws, or (v)
any Hazardous Substances present at such property, excepting such quantities as
are handled in all material respects in accordance with all

                                      20
<PAGE>


applicable manufacturer's instructions and Safety and Environmental Laws and in
proper storage containers, and as are necessary for the operations of the
Company and the Company Subsidiaries.

                  For purposes of this Agreement, the following terms have the
following meanings:

                           (a) "ENVIRONMENT" means navigable waters, waters of
the contiguous zone, ocean waters, natural resources, surface waters, ground
water, drinking water supply, land surface, subsurface strata, ambient air, both
inside and outside of buildings and structures, man-made buildings and
structures, and plant and animal life on earth.

                           (b) "ENVIRONMENTAL CLAIMS" means any written
notification, whether direct or indirect, pursuant to Safety and Environmental
Laws or principles of common law relating to pollution, protection of the
Environment or health and safety, that any of the current or past operations of
any of the Parent, any Parent Subsidiary, or the Company, or any Company
Subsidiary, as the case may be, have or may have violated any such Safety and
Environmental Law or principles of common law.

                           (c) "HAZARDOUS SUBSTANCE" means any toxic waste,
pollutant, hazardous substance, toxic substance, hazardous waste, special waste,
industrial substance or waste, petroleum or petroleum-derived substance or
waste, radioactive substance or waste, or any constituent of any such substance
or waste, or any other substance regulated under or defined by any Safety and
Environmental Law.

                           (d) "RELEASE" means any release, spill, emission,
leaking, pumping, injection, deposit, disposal, discharge, dispersal, leaching
or migration into or through the indoor or outdoor Environment or into, through
or out of any property, including the movement of Hazardous Substances through
or in the air, soil, surface water, ground water or property.

                           (e) "SAFETY AND ENVIRONMENTAL LAWS" means all
federal, state and local laws and orders relating to pollution, protection of
the Environment, public or worker health and safety, or the emission, discharge,
release or threatened release of pollutants, contaminants or industrial, toxic
or hazardous substances or wastes into the Environment or otherwise relating to
the manufacture, processing, distribution, use, treatment, storage, disposal,
transport or handling of pollutants, contaminants or industrial, toxic or
hazardous substances or wastes, including, without limitation, the Comprehensive
Environmental Response, Compensation and Liability Act, 42 U.S.C. Section 9601
ET SEQ., the Resource Conservation and Recovery Act, 42 U.S.C. Section 6901 ET
SEQ., the Toxic Substances Control Act, 15 U.S.C. Section 2601 ET SEQ., the
Federal Water Pollution Control Act, 33 U.S.C. Section 1251 ET SEQ., the Clean
Air Act, 42 U.S.C. Section 7401 ET SEQ., the Federal Insecticide, Fungicide and
Rodenticide Act, 7 U.S.C. Section 121 ET SEQ., the Occupational Safety and
Health Act,

                                      21
<PAGE>


29 U.S.C. Section 651 ET SEQ., the Asbestos Hazard Emergency Response Act, 15
U.S.C. Section 2601 ET SEQ., the Safe Drinking Water Act, 42 U.S.C. Section 300F
et SEQ., the Oil Pollution Act of 1990 and analogous state acts.

                  SECTION 3.15      INTELLECTUAL PROPERTY.

                           (a) (i) Section 3.15(a)(i) of the Company Disclosure
         Letter sets forth all material United States and foreign patents and
         patent applications, trademark and service mark registrations and
         applications, Internet domain name registrations and applications, and
         copyright registrations and applications owned by the Company,
         specifying as to each item, as applicable: (A) the jurisdictions in
         which the item is issued or registered or in which an application for
         issuance or registration has been filed; and (B) the issuance,
         registration or application numbers and dates.

                               (ii) Section 3.15(a)(ii) of the Company
         Disclosure Letter sets forth all material licenses, sublicenses, and
         other agreements or permissions ("IP LICENSES") pursuant to which the
         Company is a licensor or licensee of or otherwise is authorized to use
         or practice under any third parties rights in any Intellectual Property
         on an exclusive basis and any non-exclusive IP License that is not
         available to parties other than the Company or any Company Subsidiary
         on comparable commercial terms to which it is licensed to the Company.
         To the knowledge of the Company, all such IP Licenses are valid,
         enforceable and in full force and effect in accordance with their
         respective terms, subject to bankruptcy, insolvency, reorganization,
         moratorium or other laws now or hereafter in effect relating to
         creditors' rights generally or to general principles of equity. For
         purposes of this Agreement, "INTELLECTUAL PROPERTY" means all of the
         following as they exist in all jurisdictions throughout the world, in
         each case, to the extent owned by, licensed to, or otherwise used by
         the Company or the Parent: (A) patents, patent applications, and other
         patent rights (including any divisions, continuations,
         continuations-in-part, substitutions, or reissues thereof, whether or
         not patents are issued on any such applications and whether or not any
         such applications are modified, withdrawn, or resubmitted); (B)
         trademarks, service marks, trade dress, trade names, brand names,
         Internet domain names, designs, logos, or corporate names, whether
         registered or unregistered, and all registrations and applications for
         registration thereof; (C) copyrights, including all renewals and
         extensions, copyright registrations and applications for registration,
         and non-registered copyrights; (D) trade secrets, concepts, ideas,
         designs, research, processes, procedures, techniques, methods,
         know-how, data, mask works, discoveries, inventions, modifications,
         extensions, improvements, and other proprietary rights (whether or not
         patentable or subject to copyright, mask work, or trade secret
         protection) (collectively, "TECHNOLOGY"); and (E) computer software
         programs, including all source code, object code, and documentation
         related thereto (the "SOFTWARE").

                                      22
<PAGE>


                           (b) The Company owns, free and clear of all material
Liens, or has valid rights to use all Intellectual Property material to its or
any Company Subsidiary's business and operations.

                           (c) The Company has not been, during the three years
preceding the date of this Agreement, a party to any Claim, nor, to the
knowledge of the Company, is any Claim threatened, that challenges the validity,
enforceability, ownership, or right to use, sell, or license any Intellectual
Property material to its or any Company Subsidiary's business and operations. To
the knowledge of the Company, no third party is infringing in any material
respect upon any Intellectual Property material to its or any Company
Subsidiary's business and operations.

                           (d) The Company has taken commercially reasonable
actions to maintain and protect each item of Intellectual Property that is owned
or exclusively licensed by the Company and is material to its or any Company
Subsidiary's business and operations.

                           (e) The Company has taken commercially reasonable
precautions to protect the secrecy, confidentiality, and value of its trade
secrets and the proprietary nature and value of the Technology material to its
or any Company Subsidiary's business and operations.

                           (f) All Software that is material to the Company or
any Company Subsidiary's business and operations performs in all material
respects the functions for which such Software is used by the Company or such
Company Subsidiary.

                           (g) All Software, hardware, databases, and embedded
control systems (collectively, the "SYSTEMS") used by the Company are Year 2000
Compliant and to the Company's knowledge the Systems used by the Company's
material suppliers and facilities providers are Year 2000 Compliant, except in
each case for failures to be Year 2000 Compliant that, individually or in the
aggregate, have not resulted and could not reasonably be expected to result in a
Material Adverse Effect on the Company. For purposes of this Agreement, "YEAR
2000 COMPLIANT" means that the Systems (i) accurately process date and time data
(including calculating, comparing, and sequencing) from, into, and between the
twentieth and twenty-first centuries, the years 1999 and 2000, and leap year
calculations and (ii) operate accurately with otherwise compatible software and
hardware that use standard date format (4 digits) for representation of the
year.

                           (h) The Company is not, nor, as a result of the
execution and delivery of this Agreement or the performance of its obligations
under this Agreement, will be, in material violation of any agreement relating
to any Intellectual Property material to its or any Company Subsidiary's
business and operations. After the completion of the transactions contemplated
by this Agreement, the Company will continue to own all right, title, and
interest in and to or have a license to use all

                                      23
<PAGE>


Intellectual Property (including all Software) material to its or any Company
Subsidiary's business and operations on terms and conditions identical in all
material respects, to those enjoyed by the Company immediately prior to such
transactions.

                  SECTION 3.16 TAXES. (a) Except as set forth on Section 3.16(a)
of the Company Disclosure Letter or except as to any items that would not or
could not reasonably be expected to have, individually or in the aggregate, a
Material Adverse Effect on the Company, (i) the Company and each Company
Subsidiary has timely filed (after giving effect to any extensions of the time
to file which were obtained) prior to the date of this Agreement, and will file
prior to the Effective Time, all tax returns required to be filed prior to the
date of this Agreement and/or required to be filed prior to the Effective Time
by any of them, and has paid (or the Company has paid on its behalf), or has or
will set up an adequate reserve for the payment of, all federal, state, local,
foreign and other taxes, together with interest and penalties thereon ("TAXES"),
required to be paid prior to the date of the Agreement or the Effective Time, as
the case may be, and the most recent financial statements contained in the
Company SEC Reports reflect an adequate reserve for all Taxes payable by the
Company and the Company Subsidiaries accrued through the date of such financial
statements and (ii) no deficiencies for any Taxes have been proposed, asserted
or assessed against the Company or any Company Subsidiary other than those which
are being contested in good faith and by proper proceedings by the Company.

                           (b) The federal income tax returns of the Company and
each Company Subsidiary and any affiliated, consolidated, combined or unitary
group that includes the Company or any Company Subsidiary have not to date been
examined by the IRS.

                           (c) Except as set forth on Section 3.16(c) of the
Company Disclosure Letter or except as has not or could not reasonably be
expected to have a Material Adverse Effect on the Company, none of the Company,
any Company Subsidiary, or to the Company's knowledge, any affiliated,
consolidated, combined or unitary group of which the Company or any Company
Subsidiary is now or ever was a member, has filed or entered into any election,
consent or extension agreement that extends any applicable statute of
limitations or the time within which a tax return must be filed which such
statute of limitations has not expired or tax return has not been timely filed.

                           (d) Except as set forth on Section 3.16(d) of the
Company Disclosure Letter or except as has not or could not reasonably be
expected to have a Material Adverse Effect on the Company, (i) none of the
Company, any Company Subsidiary or, to the Company's knowledge, any group of
which the Company or any Company Subsidiary is now or ever was a member, is a
party to any action or proceeding pending or, to the Company's knowledge,
threatened by any governmental authority for assessment or collection of Taxes,
(ii) no unresolved claim for assessment or collection of Taxes has, to the
Company's knowledge, been asserted

                                      24
<PAGE>


and (iii) no audit or investigation of the Company or any Company Subsidiary by
any governmental authority is pending or, to the Company's knowledge,
threatened.

                  SECTION 3.17 NON-COMPETITION AGREEMENTS. Except as set forth
in Section 3.17 of the Company Disclosure Letter, neither the Company nor any
Company Subsidiary is a party to any agreement which purports to restrict or
prohibit in any material respect the Company and the Company Subsidiaries
collectively from, directly or indirectly, engaging in any business that,
assuming consummation of the Merger, could reasonably be expected to have a
Material Adverse Effect on the Company. None of the Company's officers,
directors or key employees is a party to any agreement which, by virtue of such
person's relationship with the Company, restricts in any material respect the
Company or any Company Subsidiary or affiliate of either of them from, directly
or indirectly, engaging in any of the businesses described above.

                  SECTION 3.18 CERTAIN AGREEMENTS. Except as set forth in
Section 3.18 of the Company Disclosure Letter or as contemplated by Section
6.2(c), neither the Company nor any of the Company Subsidiaries is a party to
any oral or written (i) agreement with any executive officer or other key
employee of the Company or Company Subsidiary the benefits of which are
contingent, or the terms of which are materially altered, upon the occurrence of
a transaction involving the Company of the nature contemplated by this Agreement
or the Option Agreement, or (ii) plan, including any stock option plan, stock
appreciation right plan, restricted stock plan or stock purchase plan, any of
the benefits of which will be increased, or the vesting of the benefits of which
will be accelerated, by the occurrence of any of the transactions contemplated
by this Agreement or the value of any of the benefits of which will be
calculated on the basis of any of the transactions contemplated by this
Agreement.

                  SECTION 3.19 REAL PROPERTY. Except as set forth in Section
3.19 of the Company Disclosure Letter, neither the Company nor any Company
Subsidiary owns any fee interest in real estate. Except as described or set
forth in any Company SEC Report filed prior to the date hereof or as set forth
in Section 3.19 of the Company Disclosure Letter, the Company or any Company
Subsidiary is not a party to any material leases, subleases and other agreement
(the "COMPANY REAL PROPERTY LEASES") under which the Company or any Company
Subsidiary uses or occupies or has the right to use or occupy, now or in the
future, any real property. The Company has heretofore made available to the
Parent true, correct and complete copies of all Company Real Property Leases
(and all modifications, amendments and supplements thereto and all side letters
to which the Company or any Company Subsidiary is a party affecting the
obligations of any party thereunder). Assuming the due authorization, execution
and delivery by the other parties thereto, each Company Real Property Lease
constitutes the valid and legally binding obligation of the Company or Company
Subsidiary, enforceable in accordance with its terms, subject to bankruptcy,
insolvency, reorganization, moratorium or other laws now or hereafter in effect
relating to creditors' rights generally or to general principles of equity, and
is

                                      25
<PAGE>


in full force and effect. All material amounts payable by the Company and
Company Subsidiary as tenants under each Company Real Property Lease are
current, no termination event or condition or uncured default of a material
nature on the part of the Company or any such Company Subsidiary exists under
any Company Real Property Lease. Each of the Company and Company Subsidiary has
a valid leasehold interest in each parcel of real property leased by it free and
clear of all Liens, except (i) Taxes and general and special assessments not in
default and payable without penalty and interest, (ii) Liens under applicable
Law and (iii) other Liens which do not materially interfere with the Company's
or any Company subsidiary's use and enjoyment of such real property or
materially detract from or diminish the value thereof.

                  SECTION 3.20 LABOR MATTERS. (a) Except as contemplated by
Section 6.2(c), Section 3.20 of the Company Disclosure Letter sets forth a list
of all employment agreements currently in effect providing for annual base
salary in excess of $200,000 or which extend for more than one year after the
Effective Time and any labor or collective bargaining agreements to which the
Company or any Company Subsidiary is a party. The Company has heretofore made
available to Parent true and complete copies of the employment agreements listed
on Section 3.20 of the Company Disclosure Letter, together with all amendments,
modifications, supplements and side letters affecting the duties, rights and
obligations of any party thereunder.

                           (b) Neither the Company nor any Company Subsidiaries
are the subject of any suit, action or proceeding which is pending or, to the
knowledge of the Company, threatened, asserting that the Company or any Company
Subsidiaries have committed an unfair labor practice (within the meaning of the
National Labor Relations Act or applicable state statues) or seeking to compel
the Company or any Company Subsidiaries to bargain with any labor organization
as to wages and conditions of employment, in any such case, that is reasonably
expected to result in a material liability of the Company and the Company
Subsidiaries. No strike or other labor dispute involving the Company or any
Company Subsidiaries is pending or, to the knowledge of the Company, threatened,
and, to the knowledge of the Company, there is no activity involving any
employees of the Company or any Company Subsidiaries seeking to certify a
collective bargaining unit or engaging in any other organizational activity,
except for such dispute or activity which has not had or could not reasonably be
expected to have a Material Adverse Effect on the Company.

                  SECTION 3.21 INVESTMENT COMPANY ACT. Each of the Company and
the Company Subsidiaries either (i) is not an "investment company," or a company
"controlled" by, or an "affiliated company" with respect to, an "investment
company," within the meaning of the Investment Company Act of 1940, as amended
(the "INVESTMENT COMPANY ACT") or (ii) satisfies all conditions for an exemption
from the Investment Company Act, and, accordingly, neither the Company nor any
of the Company is required to be registered under the Investment Company Act.

                                      26
<PAGE>


                  SECTION 3.22 OPINION OF FINANCIAL ADVISOR. CIBC World Markets
Corp. and Volpe Brown Whelan & Company, LLC (together the "COMPANY FINANCIAL
ADVISOR") have each delivered to the Board of Directors of the Company its
written opinion to the effect that, as of the date of this Agreement, the
Exchange Ratio is fair to the Company's stockholders from a financial point of
view, accompanied by an authorization to include a copy of that opinion in the
Proxy Materials (as defined in Section 5.5(a)). The Company has delivered or
will, promptly after receipt of such written opinions, deliver a signed copy of
that written opinion to the Parent.

                  SECTION 3.23 BROKERS. Except as set forth in Section 3.23 of
the Company Disclosure Letter, no broker, finder or investment banker other than
the Company Financial Advisor is entitled to any brokerage, finder's or other
fee or commission in connection with the Merger or the other transactions
contemplated by this Agreement or the Option Agreement based upon arrangements
made by or on behalf of the Company. Prior to the date of this Agreement, the
Company has made available to the Parent a complete and correct copy of all
agreements between the Company and the Company Financial Advisor under which the
Company Financial Advisor would be entitled to any payment relating to the
Merger or any other transactions hereunder.

                  SECTION 3.24 CERTAIN STATUTES. The Board of Directors of the
Company has taken or will take all appropriate and necessary actions to ensure
that the restrictions on business combinations in Section 203 of the GCL will
not have any effect on the Merger or the other transactions contemplated by this
Agreement, the Voting Agreement or the Option Agreement. No "fair price,"
"moratorium," "control share acquisition" or other similar state or federal
anti-takeover statute or regulation (each a "TAKEOVER STATUTE") is, as of the
date of this Agreement, applicable to the Merger or any other transactions
contemplated by this Agreement.

                  SECTION 3.25 INFORMATION. None of the information to be
supplied by the Company for inclusion or incorporation by reference in the Proxy
Statement (as defined in Section 5.5(a)) or the Registration Statement (as
defined in Section 5.5(a)) (except to the extent revised or superseded by
amendment or supplement) will, in the case of the Registration Statement, at the
time it becomes effective and at the Effective Time, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated in the Registration Statement or necessary to make the statements in that
Registration Statement not misleading, or, in the case of the Proxy Statement or
any amendments or supplements of the Proxy Statement, at the time of the mailing
of the Proxy Statement and any amendments or supplements of the Proxy Statement
and at the time of the Company Stockholders Meeting, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated in that Proxy Statement or necessary in order to make the statements in
that Proxy Statement, in light of the circumstances under which they are made,
not misleading. The Proxy Statement (except for those portions of the Proxy
Statement that relate to Parent or subsidiaries or affiliates of the Parent)
will comply as to form

                                      27
<PAGE>


in all material respects with the provisions of the Exchange Act.
Notwithstanding anything else herein to the contrary, no representation or
warranty is made hereunder by the Company with respect to statements made or
incorporated by reference in the Proxy Statement or Registration Statement based
on information supplied by the Parent for inclusion or incorporation by
reference therein.

                  SECTION 3.26 VOTE REQUIRED. The Requisite Company Vote is the
only vote of the holders of any class or series of the Company's capital stock
necessary (under the Company Charter Documents, the GCL, other applicable Law or
otherwise) to approve this Agreement, the Option Agreement, the Merger or the
other transactions contemplated by this Agreement or the Option Agreement.


                                    ARTICLE 4

                         REPRESENTATIONS AND WARRANTIES
                          OF THE PARENT AND MERGER SUB

                  Each of the Parent and Merger Sub represents and warrants to
the Company that, except for inaccuracies in the representations and warranties
resulting from compliance with the provisions of this Agreement and performance
of the transactions contemplated hereby or inaccuracies resulting from actions
or omissions permitted by Section 5.2:

                  SECTION 4.1 ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.

                           (a) Each of the Parent, Merger Sub, and each other
subsidiary of the Parent (collectively, the "PARENT SUBSIDIARIES") has been duly
organized and is validly existing and in good standing under the laws of its
jurisdiction of its incorporation or organization, as the case may be, and has
the requisite power and authority to own, lease and operate its properties and
to carry on its business as it is now being conducted. Each of the Parent,
Merger Sub and each other Parent Subsidiary is duly qualified or licensed to do
business, and is in good standing, in each jurisdiction where the character of
the properties owned, leased or operated by it or the nature of its business
makes such qualification or licensing necessary, except for such failures to be
so qualified or licensed and in good standing that, individually or in the
aggregate, have not resulted and could not reasonably be expected to result in a
Material Adverse Effect on the Parent. For purposes of this Agreement, "MATERIAL
ADVERSE EFFECT ON THE PARENT" means any change in or effect on the business,
assets, properties, results of operations or condition (financial or otherwise)
of the Parent or any Parent Subsidiaries that is or could reasonably be expected
to be materially adverse to the Parent and the Parent Subsidiaries, taken as a
whole, or that could reasonably be expected to materially impair the ability of
the Parent or Merger Sub to perform its obligations under this Agreement or the
Option Agreement or to consummate transactions contemplated hereby or thereby,
except for

                                      28
<PAGE>


any change or effect (i) relating to the economy in general or (ii) relating to
the industries in which the Parent and the Parent Subsidiaries operate.

                           (b) Section 4.1(b) of the Disclosure Letter delivered
to the Company by the Parent and Merger Sub at or prior to the execution of this
agreement (the "PARENT DISCLOSURE LETTER") sets forth a complete and correct
list of all of the Parent Subsidiaries, including the jurisdiction of
incorporation and the ownership or other interest therein of the Parent or any
Parent Subsidiary. Except as set forth in Section 4.1(b) of the Parent
Disclosure Letter, neither the Parent nor any Parent Subsidiary holds any
material interest in any other person other than the Parent Subsidiaries so
listed.

                  SECTION 4.2 CERTIFICATE OF INCORPORATION AND BY-LAWS. The
copies of the Parent's certificate of incorporation and by-laws, each as amended
through the date of this Agreement (collectively, the "PARENT CHARTER
DOCUMENTS") that are incorporated by reference in, as exhibits to, the Parent's
annual report on Form 10-K for the year ended December 31, 1998 are complete and
correct copies of those documents. The Parent has made available to the Company
complete and correct copies of all organizational documents of each Parent
Subsidiary. The Parent Charter Documents and all comparable organizational
documents of the Parent Subsidiaries are in full force and effect. Neither the
Parent nor any Parent Subsidiary is in violation of any of the provisions of its
organizational documents.

                  SECTION 4.3 CAPITALIZATION.

                           (a) The authorized capital stock of the Parent
consists of (i) 2,404,031,240 shares of Parent Common Stock, (ii) 522,254,782
shares of Class B Common Stock, par value $.01 per share (the "PARENT CLASS B
COMMON STOCK"), and (iii) 20,000,000 shares of Preferred Stock, par value $.01
per share ("PARENT PREFERRED STOCK"). As of May 31, 1999, (A) 155,652,276 shares
of Parent Common Stock were issued and outstanding, all of which were validly
issued and are fully paid, nonassessable and not subject to preemptive rights,
(B) 33,769,272 shares of Parent Class B Common Stock were issued and
outstanding, all of which were validly issued and are fully paid, nonassessable
and not subject to preemptive rights, (C) no shares of Parent Preferred Stock
were outstanding, (D) 43,176,158 shares of Parent Common Stock were reserved for
issuance upon exercise of outstanding stock options and warrants to acquire
shares of Parent Common Stock ("PARENT STOCK OPTIONS AND WARRANTS") and (E)
33,769,272 shares of Parent Common Stock were reserved for issuance upon
conversion of outstanding shares of Parent Class B Common Stock. Except as set
forth above, as of May 31, 1999, no shares of capital stock or other voting
securities of the parent were issued, reserved for issuance or outstanding and
since such date, no shares of capital stock or other voting securities or
options in respect thereof have been issued except upon the exercise of the
Parent Stock Options and Warrants outstanding on May 31, 1999 or in the ordinary
course of business.

                                      29
<PAGE>


                           (b) Except for (i) outstanding Parent Stock Options
and Warrants, and (ii) outstanding shares of Parent Class B Common Stock, there
are no options, warrants, conversion rights, stock appreciation rights,
redemption rights, repurchase rights or other rights, agreements, arrangements
or commitments of any character to which the Parent is a party or by which the
Parent is bound relating to the issued or unissued capital stock of the Parent
or any Parent Subsidiary or obligating the Parent or any Parent Subsidiary to
issue or sell any shares of capital stock of, or other equity interests in, the
Parent or any Parent Subsidiary.

                           (c) There are no outstanding contractual obligations
of the Parent or any Parent Subsidiary to repurchase, redeem or otherwise
acquire any shares of Parent Common Stock or any capital stock of any Parent
Subsidiary. Each outstanding share of capital stock of each Parent Subsidiary is
duly authorized, validly issued, fully paid, nonassessable and not subject to
preemptive rights and each such share owned by the Parent or a Parent Subsidiary
is free and clear of all Liens except for Liens under applicable Law. Except as
set forth in Section 4.3(c) of the Parent Disclosure Letter, there are no
material outstanding contractual obligations of the Parent or any Parent
Subsidiary to provide funds to, or make any investment (in the form of a loan,
capital contribution or otherwise) in, any Parent Subsidiary that is not wholly
owned by the Parent or in any other person.

                           (d) The authorized capital stock of Merger Sub
consists of 1,000 shares of common stock, par value $.01 per share ("SUB COMMON
STOCK"). All of the issued and outstanding shares of Sub Common Stock are (A)
owned by the Parent or another Parent Subsidiary wholly owned by the Parent and
(B) duly authorized, validly issued, fully paid and nonassessable.

                  SECTION 4.4 AUTHORITY. (a) Each of the Parent and Merger Sub
has all necessary corporate power and authority to execute and deliver this
Agreement and the Option Agreement, to perform its obligations hereunder and
thereunder and to consummate the transactions contemplated hereby or thereby to
be consummated by it. The execution and delivery of this Agreement and the
Option Agreement by each of the Parent and Merger Sub and the consummation by
each of the Parent and Merger Sub of such transactions have been duly and
validly authorized by all necessary corporate action and no other corporate
proceedings on the part of the Parent or Merger Sub are necessary to authorize
this Agreement or to consummate such transactions, other than with respect to
the Merger, the approval of the issuance of the shares of Parent Common Stock in
the Merger by a majority of holders of Parent Common Stock and Parent Class B
Common Stock, voting as a single class, that are present in person or by proxy
at a duly called meeting of Parent stockholders (the "REQUISITE PARENT VOTE").
This Agreement and the Option Agreement have been duly authorized and validly
executed and delivered by each of the Parent and Merger Sub and, assuming the
due authorization, execution and delivery by the other parties hereto,
constitute the legal, valid and binding obligation of each of the Parent and
Merger Sub, enforceable against each of the Parent and Merger Sub in accordance
with their respective terms, subject to bankruptcy, insolvency,

                                      30
<PAGE>


reorganization, moratorium or other laws now or hereafter in effect relating to
creditors' rights generally or to general principles of equity.

                           (b) Each of the Board of Directors of the Parent and
Merger Sub (i) has unanimously adopted the plan of merger set forth in this
Agreement and approved this Agreement and the other transactions contemplated by
this Agreement (including the issuance of the shares of Parent Common Stock in
connection with the Merger) and (ii) has declared that the Merger and this
Agreement and the other transactions contemplated by this Agreement are
advisable and recommended that the stockholders of the Parent approve the
issuance of the shares of Parent Common Stock in the Merger.

                  SECTION 4.5 NO CONFLICT. (a) The execution and delivery of
this Agreement and the Option Agreement by the Parent and Merger Sub do not, and
the performance of this Agreement and the Option Agreement by each of the Parent
and Merger Sub will not:

                               (i) conflict with or violate any provision of any
         Parent Charter Document or any equivalent organizational documents of
         any Parent Subsidiary;

                               (ii) assuming effectuation of all filings and
         registrations with termination or expiration of all applicable waiting
         periods imposed by, and receipt of all consents, approvals,
         authorizations and permits of all Governmental Entities indicated as
         required in Section 4.6 below, receipt of all consents required under
         any Contracts, and receipt of the approval of the issuance of the
         shares of Parent Common Stock in the Merger by the stockholders of the
         Parent as required by NASDAQ/NMS, conflict with or violate any material
         foreign or domestic Law applicable to the Parent, Merger Sub or any
         other Parent Subsidiary or by which any property or asset of the Parent
         or any Parent Subsidiary is or may be bound or affected, except for
         such conflicts or violations which, individually or in the aggregate,
         have not resulted and could not reasonably be expected to result in a
         Material Adverse Effect on the Parent; or

                               (iii) except as set forth in Section 4.5(b) of
         the Parent Disclosure Letter, result in any breach of or constitute a
         default (or an event which with or without notice or lapse of time or
         both would become a default) under, or modification in a manner
         materially adverse to the Parent and the Parent Subsidiaries of any
         material right or benefit under or give to others any right of
         termination, amendment, acceleration, repayment or repurchase,
         increased payments or cancellation of, or result in the creation of a
         lien or other encumbrance on any property or asset of the Parent,
         Merger Sub, or any other Parent Subsidiary under, any Contract to which
         the Parent, Merger Sub or any other Parent Subsidiary is a party or by
         which any of them or their assets or Properties is or may be bound or
         affected, except for any such

                                      31
<PAGE>


         breaches, defaults or other occurrences which, individually or in the
         aggregate, have not resulted and could not reasonably be expected to
         result in a Material Adverse Effect on the Parent;

                           (b) Section 4.5(b) of the Parent Disclosure Letter
sets forth a correct and complete list of all material Contracts to which Parent
or any Parent Subsidiaries are a party or by which they or their assets or
properties is or may be bound or affected under which consents or waivers are
required prior to consummation of the transactions contemplated by this
Agreement and the Option Agreement.

                  SECTION 4.6 GOVERNMENTAL REQUIRED FILINGS AND CONSENTS. The
execution and delivery of this Agreement and the Option Agreement by the Parent
and Merger Sub do not, and the performance of this Agreement and the Option
Agreement by the Parent and Merger Sub will not, require any material consent,
approval, authorization or permit of, or filing with or notification to, any
Government Entity except for (i) those consents or approvals set forth in
Section 4.6 of the Parent Disclosure Letter (the "PARENT GOVERNMENTAL
CONSENTS"), (ii) applicable requirements of the Exchange Act and the Securities
Act, (iii) applicable requirements of Blue Sky Laws, (iv) the rules and
regulations of the NASDAQ/NMS, (v) the pre-merger notification requirements of
the HSR Act, and (vi) the filing of the Certificate of Merger as required by the
GCL.

                  SECTION 4.7 PERMITS; COMPLIANCE WITH LAW. Each of the Parent
and the Parent Subsidiaries is in possession of all franchises, grants,
authorizations, licenses, permits, easements, variances, exceptions, consents,
certificates, approvals and orders of any Governmental Entity necessary for the
Parent or any Parent Subsidiary to own, lease and operate its properties or to
carry on its business as it is now being conducted (collectively, the "PARENT
PERMITS"), except where the failure to have, or the suspension or cancellation
of, any of the Parent Permits, individually or in the aggregate, has not
resulted and could not reasonably be expected to result in a Material Adverse
Effect on the Parent, and, as of the date of this Agreement, no suspension or
cancellation of any of the Parent Permits is pending or, to the knowledge of the
Parent, threatened, except where the failure to have, or the suspension or
cancellation of, any of the Parent Permits, individually or in the aggregate,
has not resulted and could not reasonably be expected to result in a Material
Adverse Effect on the Parent. Neither the Parent nor any Parent Subsidiary is in
conflict with or in default or violation of (i) any Law applicable to the Parent
or any Parent Subsidiary or by which any property or asset of the Parent or any
Parent Subsidiary is or may be bound or affected or (ii) any Parent Permits,
except in the case of clauses (i) and (ii) any such conflicts, defaults or
violations which, individually or in the aggregate, have not resulted and could
not reasonably be expected to result in a Material Adverse Effect on the Parent.

                                      32
<PAGE>


                  SECTION 4.8 SEC FILINGS; FINANCIAL STATEMENTS.

                           (a) The Parent has filed all forms, reports,
registration statements and other documents (including all exhibits, annexes,
supplements and amendments to such documents) required to be filed by it under
the Exchange Act and the Securities Act since September 1, 1997 through the date
of this Agreement (collectively, including any such documents filed subsequent
to the date of this Agreement, the "PARENT SEC REPORTS") and the Parent has made
available to the Company each Parent SEC Report. The Parent SEC Reports,
including any financial statements or schedules included or incorporated by
reference, (i) comply in all material respects with the requirements of the
Exchange Act or the Securities Act or both, as the case may be, applicable to
those Parent SEC Reports and (ii) did not at the time they were filed contain
any untrue statement of a material fact or omit to state a material fact
required to be stated or necessary in order to make the statements made in those
Parent SEC reports, in the light of the circumstances under which they were
made, not misleading. No Parent Subsidiary is subject to the periodic reporting
requirements of the Exchange Act or is otherwise required to file any documents
with the SEC or any national securities exchange or quotation service or
comparable Governmental Entity.

                           (b) Each of the consolidated financial statements
included in or incorporated by reference into the Parent SEC Reports (including
the related notes and schedules) comply as to form in all material respects with
the published rules and regulations of the SEC with respect thereto, have been
prepared in accordance with GAAP applied on a consistent basis throughout the
periods involved (except as may be indicated in the notes thereto or, in the
case of the unaudited interim financial statements, as permitted by Form 10-Q of
the SEC) and fairly present in all material respects (subject, in the case of
the unaudited interim financial statements, to normal, year-end audit
adjustments) the consolidated financial position of the Company and its
Subsidiaries as at the dates thereof and the consolidated results of their
operations and cash flows for the periods then ended.

                           (c) Except as and to the extent set forth on the
consolidated balance sheet of the Parent and the consolidated Parent
Subsidiaries as of March 31, 1999, including the related notes and except as set
forth in the Parent SEC Reports filed prior to the date hereof, neither the
Parent nor any Parent Subsidiary has any liabilities or obligations of any
nature (whether accrued, absolute, contingent or otherwise) that would be
required to be reflected on a balance sheet or in the related notes prepared in
accordance with GAAP, except for liabilities or obligations incurred since March
31, 1999 that, individually or in the aggregate, have not resulted and could not
reasonably be expected to result in a Material Adverse Effect on the Parent and
except for liabilities or obligations under this Agreement and the transactions
contemplated hereby.

                  SECTION 4.9 ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as
set forth in any Parent SEC Report filed prior to the date hereof, since March
31, 1999

                                      33
<PAGE>


and, in the case of clauses (c)-(i) only through and including the date hereof,
the Parent and the Parent Subsidiaries have conducted their businesses in the
ordinary course and in a manner consistent with past practice and, since such
date, there has not been:

                           (a) any Material Adverse Effect on the Parent;

                           (b) any damage, destruction or other casualty loss
with respect to any asset or property owned, leased or otherwise used by the
Parent or any Parent Subsidiaries, whether or not covered by insurance, which
damage, destruction or loss, individually or in the aggregate, has resulted or
could reasonably be expected to result in a Material Adverse Effect on the
Parent;

                           (c) any material change by the Parent in its or any
Parent Subsidiary's accounting methods, principles or practices except as
required by GAAP or by applicable Law;

                           (d) any declaration, setting aside or payment of any
dividend or distribution in respect of Parent Common Stock or any redemption,
purchase or other acquisition of any of the Parent's securities; or

                           (e) any increase in the compensation or benefits or
establishment of any bonus, insurance, severance, deferred compensation,
pension, retirement, profit sharing, stock option (including, the granting of
stock options, stock appreciation rights, performance awards or restricted stock
awards), stock purchase or other employee benefit plan, or any other increase in
the compensation payable or to become payable to any executive officers of the
Parent or any Parent Subsidiary, in each case, except in the ordinary course of
business consistent with past practice or except as required by applicable Law;

                           (f) (i) any incurrence or assumption by the Parent or
any Parent Subsidiary of any indebtedness for borrowed money or (ii) any
guarantee, endorsement or other incurrence or assumption material
liability(whether directly, contingently or otherwise) by the Parent or any
Parent Subsidiary for the obligations of any other person (other than any wholly
owned Parent Subsidiary) in each case, other than in the ordinary course of
business consistent with past practice;

                           (g) any creation or assumption by the Parent or any
Parent Subsidiary of any Lien on any material asset of the Parent or any Parent
Subsidiary, other than in the ordinary course of business, consistent with past
practice;

                           (h) any making of any loan, advance or capital
contribution to or investment in any person by the Parent or any Parent
Subsidiary, other than in the ordinary course of business, consistent with past
practice; or

                                      34
<PAGE>


                           (i) (i) any Contract entered into by the Parent or
any Parent Subsidiary relating to any material acquisition or disposition of any
assets or business, or (ii) any modification, amendment, assignment or
termination of or relinquishment by the Parent or any Parent Subsidiary of any
rights under any other Contract (including any insurance policy naming it as a
beneficiary or a loss payable payee) that does or could reasonably be expected
to have, individually or in the aggregate, a Parent Material Adverse Effect on
the Parent, other than transactions, commitments, contracts or agreements in the
ordinary course of business consistent with past practice or those contemplated
by this Agreement.

                  SECTION 4.10 EMPLOYEE BENEFIT PLANS.

                           (a) Except as set forth in Section 4.10(a) of the
Parent Disclosure Letter and except as, individually or in the aggregate, has
not and could not reasonably be expected to have a Material Adverse Effect on
the Parent: (A) each Benefit Plan of the Parent or any Parent Subsidiary has
been administered and is in compliance with the terms of such plan and all
applicable laws, rules and regulations, (B) no "reportable event" (as such term
is used in section 4043 of ERISA) (other than those events for which the 30 day
notice has been waived pursuant to the regulations), "prohibited transaction"
(as such term is used in section 406 of ERISA or section 4975 of the Code) or
"accumulated funding deficiency" (as such term is used in section 412 or 4971 of
the Code) has heretofore occurred with respect to any Parent Benefit Plan or any
Benefit Plan of any of its ERISA Affiliates and (C) the Parent Benefit Plans
intended to qualify under section 401 of the Code are so qualified and the
trusts maintained pursuant thereto are exempt from federal income taxation under
section 501 of the Code, and nothing has occurred with respect to the operation
of the Parent Benefit Plans which could cause the loss of such qualification or
exemption or the imposition of any liability, penalty or tax under ERISA or the
Code and each Parent Benefit Plan intended to qualify under Section 401(a) of
the Code has received a favorable determination from the IRS regarding its
qualified status and no notice has been received from the IRS with respect to
the revocation of such qualification.

                           (b) There is no litigation or administrative or other
proceeding involving any Parent Benefit Plan nor has the Parent or any Parent
Subsidiary received notice that any such proceeding is threatened, in each case
where an adverse determination, individually or in the aggregate, has had or
could reasonably be expected to have a Material Adverse Effect on the Parent.
Neither the Parent nor any Parent Subsidiary has incurred, nor, to the Parent's
knowledge, is reasonably likely to incur any withdrawal liability with respect
to any "multiemployer plan" (within the meaning of section 3(37) of ERISA) that,
individually or in the aggregate, has had or could reasonably be expected to
have a Material Adverse Effect on the Parent. The termination of, or withdrawal
from, any Parent Benefit Plan or multiemployer plan to which the Parent or any
Parent Subsidiaries contributes, on or prior to the Closing Date, will not
subject the Parent or any Parent Subsidiary to any

                                      35
<PAGE>


liability under Title IV of ERISA that, individually or in the aggregate, has
had or could reasonably be expected to have a Material Adverse Effect on the
Parent.

                           (c) True, correct and complete copies of the
following documents, with respect to each of the Parent Benefit Plans (other
than a multiemployer plan), have been made available or delivered to the Company
by Parent, to the extent applicable: (i) any plans, all amendments thereto and
related trust documents, and amendments thereto; (ii) the most recent Forms 5500
and all schedules thereto and the most recent actuarial report, if any; (iii)
the most recent IRS determination letter; (iv) summary plans descriptions; (v)
written communications to employees relating to the Parent Benefit Plans; and
(vi) written descriptions of all non-written agreements relating to the Parent
Benefit Plans.

                           (d) None of the Parent Benefit Plans provide for
post- employment life or health insurance, benefits or coverage for any
participant or any beneficiary of a participant, except as may be required under
COBRA and at the expense of the participant or the participant's beneficiary.
Except as individually or in the aggregate would not have or would not
reasonably be expected to have a Material Adverse Affect on the Parent, each of
the Parent and any ERISA Affiliate which maintains a "group health plan" within
the meaning section 5000(b)(1) of the Code has complied with the notice and
continuation requirements of section 4980B of the Code, COBRA, Part 6 of
Subtitle B of Title I of ERISA and the regulations thereunder.

                           (e) Except as disclosed in Parent SEC Reports filed
prior to the date hereof, there is no contract, plan or arrangement (written or
otherwise) covering any employee or former employee of the Parent or any Parent
Subsidiary that, individually or collectively, could give rise to the payment of
any amount that would not be deductible pursuant to the terms of section 280G of
the Code and neither the Parent nor any Parent Subsidiary has made any payment
that would not be deductible pursuant to the terms of section 162(m) of the
Code.

                  SECTION 4.11 TAX MATTERS. Neither the Parent nor Merger Sub,
nor to the knowledge of the Parent, any of Parent's affiliates has taken or
agreed to take any action, nor is the Parent aware of any agreement, plan or
other circumstance, that would prevent the Merger from constituting a
transaction qualifying as a reorganization under section 368(a) of the Code.

                  SECTION 4.12 NO DEFAULTS. Neither the Parent nor any Parent
Subsidiary is in violation of or in default under (nor does there exist any
condition which with the passage of time or the giving of notice would cause
such a violation of or default under) any Contract to which it is a party or by
which it or any of its properties or assets is or may be bound or affected,
except for violations or defaults that, individually or in the aggregate, have
not resulted and could not reasonably be expected to result in a Material
Adverse Effect on the Parent.

                                      36
<PAGE>


                  SECTION 4.13 LITIGATION. Except as described in any Parent SEC
Report filed prior to the date hereof, there is no Claim pending or, to the
knowledge of the Parent, threatened against the Parent or any Parent Subsidiary
before any Governmental Entity nor to the Parent's knowledge are there any
investigations or reviews by any Governmental Entity pending or, threatened
against, relating to or affecting the Parent or any of the Parent Subsidiaries,
that, individually or in the aggregate, has resulted or could reasonably be
expected to result in a Material Adverse Effect on the Parent. Neither the
Parent nor any Parent Subsidiary is subject to any outstanding order, writ,
injunction or decree of any court of Governmental Entity which, individually or
in the aggregate, has resulted or could reasonably be expected to result in a
Material Adverse Effect on the Parent.

                  SECTION 4.14 ENVIRONMENTAL MATTERS.  Except as could not
reasonably be expected to have a Material Adverse Effect on the Parent:

                           (a) Neither the Parent nor any Parent Subsidiary is
or has been in violation of any applicable Safety and Environmental Law;

                           (b) To the Parent's knowledge, the Parent and each
Parent Subsidiary have all Permits required pursuant to Safety and Environmental
Laws that are material to the conduct of the business of the Parent or any
Parent Subsidiary, all such Permits are in full force and effect, no action or
proceeding to revoke, limit or modify any of such Permits is pending, and the
Parent and each Parent Subsidiary is in compliance in all material respects with
all terms and conditions thereof;

                           (c) Neither the Parent nor any Parent Subsidiary has
received, any Environmental Claim;

                           (d) To the Parent's knowledge, there is not now and
has not been at any time in the past a Release or threatened Release of
Hazardous Substances into the Environment for which the Parent or any Parent
Subsidiary is directly or indirectly responsible; and

                           (e) To the Parent's knowledge, there is not now and
has not been at any time in the past at, on or in any of the real properties
owned, leased or operated by the Parent or any Parent Subsidiary, and, to the
Parent's knowledge, was not at, on or in any real property previously owned,
leased or operated by the Parent or any Parent Subsidiary or any predecessor:
(i) any generation, use, handling, Release, treatment, recycling, storage or
disposal of any Hazardous Substances, (ii) any underground storage tank, surface
impoundment, lagoon or other containment facility (past or present) for the
temporary or permanent storage, treatment or disposal of Hazardous Substances,
(iii) any asbestos-containing material in a condition requiring abatement, (iv)
any Release or threatened Release, or any visible signs of Releases or
threatened Releases, of a Hazardous Substance to the Environment in form or
quantity requiring remedial action under Safety and Environmental Laws, or (v)
any Hazardous Substances present at such property, excepting such quantities as

                                      37
<PAGE>


are handled in all material respects in accordance with all applicable
manufacturer's instructions and Safety and Environmental Laws and in proper
storage containers, and as are necessary for the operations of the Parent and
the Parent Subsidiaries.

                  SECTION 4.15 INTELLECTUAL PROPERTY.

                           (a) The Parent owns, free and clear of all material
Liens, or has valid rights to use all Intellectual Property material to its or
any Parent Subsidiary's business and operations. To the knowledge of the Parent,
all material licenses, sublicenses and other agreements or permissions pursuant
to which the Parent is a licensor or licensee of or otherwise is authorized to
use or practice under any third party's rights in any Intellectual Property on
an exclusive basis and any such non-exclusive license, sublicense, agreement or
permission that is not available to parties other than the Parent or any Parent
Subsidiary on comparable commercial terms to which it is licensed to the Parent,
are valid, enforceable and in full force and effect in accordance with their
respective terms, subject to bankruptcy, insolvency, reorganization, moratorium
or other laws now or hereafter in effect relating to creditors' rights generally
or to general principles of equity.

                           (b) The Parent has not been, during the three years
preceding the date of this Agreement, a party to any Claim, nor, to the
knowledge of the Company, is any Claim threatened, that challenges the validity,
enforceability, ownership, or right to use, sell, or license any Intellectual
Property material to its or any Parent Subsidiary's business and operations. To
the knowledge of the Parent, no third party is infringing in any material
respect upon any Intellectual Property material to its or any Parent
Subsidiary's business and operations.

                           (c) The Parent has taken all commercially reasonable
actions to maintain and protect each item of Intellectual Property that is owned
or exclusively licensed by the Parent and is material to its or any Parent
Subsidiary's business and operations .

                           (d) The Parent has taken commercially reasonable
precautions to protect the secrecy, confidentiality, and value of its trade
secrets and the proprietary nature and value of the Technology material to its
and any Parent Subsidiary's business and operations.

                           (e) All Software that is material to the Parent or
any Parent Subsidiary's business and operations, performs in all material
respects the functions for which such Software is used by the Parent or such
Parent Subsidiary.

                           (f) All Systems used by the Parent are Year 2000
Compliant and to the Parent's knowledge the systems used by the Parent's
material suppliers and facilities providers are Year 2000 Compliant, except in
each case for failures to be Year 2000 Compliant that, individually or in the
aggregate, have not resulted and could not reasonably be expected to result in a
Material Adverse Effect on the Parent.

                                      38
<PAGE>


                           (g) The Parent is not in violation of any agreement
relating to any Intellectual Property, except for violations that, individually
or in the aggregate, have not resulted and could not reasonably be expected to
result in a Material Adverse Effect on the Parent.

                  SECTION 4.16 TAXES. (a) Except as to any items that would not
or could not reasonably be expected to have, individually or in the aggregate, a
Material Adverse Effect on the Parent, (i) the Parent and each Parent Subsidiary
has timely filed (after giving effect to any extensions of the time to file
which were obtained) prior to the date of this Agreement, and will file prior to
the Effective Time, all tax returns required to be filed prior to the date of
this Agreement and/or required to be filed prior to the Effective Time by any of
them, and has paid (or the Parent has paid on its behalf), or has or will set up
an adequate reserve for the payment of, all Taxes required to be paid prior to
the date of the Agreement or the Effective Time, as the case may be, and the
most recent financial statements contained in the Parent SEC Reports reflect an
adequate reserve for all Taxes payable by the Parent and the Parent Subsidiaries
accrued through the date of such financial statements and (ii) no deficiencies
for any Taxes have been proposed, asserted or assessed against the Parent or any
Parent Subsidiary other than those which are being contested in good faith and
by proper proceedings by the Parent.

                           (b) The federal income tax returns of the Parent and
each Parent Subsidiary and any affiliated, consolidated, combined or unitary
group that includes the Parent or any Parent Subsidiary have either been
examined by and settled with the IRS, or the statute of limitations with respect
to such years has expired, for all taxable years through 1994.

                           (c) Except as has not or could not reasonably be
expected to have a Material Adverse Effect on the Parent, none of the Parent,
any Parent Subsidiary, or to the Parent's knowledge, any affiliated,
consolidated, combined or unitary group of which the Parent or any Parent
Subsidiary is now or ever was a member, has filed or entered into any election,
consent or extension agreement that extends any applicable statute of
limitations or the time within which a tax return must be filed which such
statute of limitations has not expired or tax return has not been timely filed.

                           (d) Except as has not or could not reasonably be
expected to have a Material Adverse Effect on the Parent, (i) none of the
Parent, any Parent Subsidiary or, to the Parent's knowledge, any group of which
the Parent or any Parent Subsidiary is now or ever was a member, is a party to
any action or proceeding pending or, to the Parent's knowledge, threatened by
any governmental authority for assessment or collection of Taxes, (ii) no
unresolved claim for assessment or collection of Taxes has, to the Parent's
knowledge, been asserted, and (iii) no audit or investigation of the Parent or
any Parent Subsidiary by any governmental authority is pending or, to the
Parent's knowledge, threatened.

                                      39
<PAGE>


                  SECTION 4.17 REAL PROPERTY. Neither the Parent nor any Parent
Subsidiary owns any fee interest in real estate. Assuming the due authorization,
execution and delivery by the other parties thereto, each material lease,
sublease or other agreement (the "PARENT REAL PROPERTY LEASES") under which the
Parent or any Parent Subsidiary occupies or has the right to use or occupy now
or in the future any real property constitutes the valid and legally binding
obligation of the Parent or Parent Subsidiary, enforceable in accordance with
its terms, subject to bankruptcy, insolvency, reorganization, moratorium or
other laws now or hereafter in effect relating to creditors' rights generally or
to general principles of equity, and is in full force and effect. All material
amounts payable by the Parent and Parent Subsidiary as tenants under each Parent
Real Property Lease are current, no termination event or condition or uncured
default of a material nature on the part of the Parent or any such Parent
Subsidiary exists under any Parent Real Property Lease. Each of the Parent and
Parent Subsidiary has a valid leasehold interest in each parcel of real property
leased by it free and clear of all Liens, except (i) Taxes and general and
special assessments not in default and payable without penalty and interest, and
(ii) Liens under applicable Law, and (iii) other Liens which do not materially
interfere with the Parent's or any Parent subsidiary's use and enjoyment of such
real property or materially detract from or diminish the value thereof.

                  SECTION 4.18 LABOR MATTERS. Neither the Parent nor any Parent
Subsidiaries are the subject of any suit, action or proceeding which is pending
or, to the knowledge of the Parent, threatened, asserting that the Parent or any
Parent Subsidiaries have committed an unfair labor practice (within the meaning
of the National Labor Relations Act or applicable state statues) or seeking to
compel the Parent or any Parent Subsidiaries to bargain with any labor
organization as to wages and conditions of employment, in any such case, that is
reasonably expected to result in a material liability of the Parent and the
Parent Subsidiaries. No strike or other labor dispute involving the Parent or
any Parent Subsidiaries is pending or, to the knowledge of the Parent,
threatened, and, to the knowledge of the Parent, there is no activity involving
any employees of the Parent or any Parent Subsidiaries seeking to certify a
collective bargaining unit or engaging in any other organizational activity,
except for such dispute or activity which has not had or could not reasonably be
expected to have a Material Adverse Effect on the Parent.

                  SECTION 4.19 INVESTMENT COMPANY ACT. Each of Parent and each
Parent Subsidiary either (i) is not an "investment company," or a company
"controlled" by, or an "affiliated company" with respect to, an "investment
company," within the meaning of the Investment Company Act or (ii) satisfies all
conditions for an exemption from the Investment Company Act, and, accordingly,
neither the Parent nor any Parent Subsidiary is required to be registered under
the Investment Company Act.

                  SECTION 4.20 OPINION OF FINANCIAL ADVISOR.  Salomon Smith
Barney Inc. (the "PARENT FINANCIAL ADVISOR") has delivered to the Board of
Directors of the Parent its oral opinion to the effect that, as of the date of
this Agreement, the

                                      40
<PAGE>


Exchange Ratio is fair to the Parent from a financial point of view, which
opinion was or will promptly after the date of this Agreement be confirmed in
writing and accompanied by an authorization to include a copy of such opinion in
the Proxy Materials. The Parent has delivered or will, promptly after receipt of
that written opinion, deliver a signed copy of that written opinion to the
Company.

                  SECTION 4.21 BROKERS. No broker, finder or investment banker
other than the Parent Financial Advisor is entitled to any brokerage, finder's
or other fee or commission in connection with the Merger or the other
transactions contemplated hereby based upon arrangements made by or on behalf of
the Parent or Merger Sub. The Parent has heretofore made available to the
Company a complete and correct copy of all agreements between the Parent and the
Parent Financial Advisor pursuant to which the Parent Financial Advisor would be
entitled to any payment relating to the Merger or such other transactions
hereunder.

                  SECTION 4.22 INFORMATION. None of the information to be
supplied by the Parent or Merger Sub for inclusion or incorporation by reference
in the Registration Statement or the Proxy Statement will, in the case of the
Registration Statement (except to the extent revised or superseded by amendment
or supplement), at the time it becomes effective and at the Effective Time,
contain any untrue statement of a material fact or omit to state any material
fact required to be stated in that Registration Statement, or necessary to make
the statements in the Registration Statement not misleading, or, in the case of
the Proxy Statement or any amendments thereof or supplements thereto, at the
time of the mailing of the Proxy Statement and any amendments or supplements
thereto and at the time of the Parent Stockholders Meeting, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated in that Proxy Statement or necessary in order to make the statements in
that Proxy Statement, in light of the circumstances under which they are made,
not misleading. The Proxy Statement (except for such portions thereof that
relate to the Company or the Company Subsidiaries or affiliates of the Company)
and the Registration Statement will comply as to form in all material respects
with the provisions of the Exchange Act and the Securities Act, respectively.
Notwithstanding anything else herein to the contrary, no representation or
warranty is made hereunder by the Parent with respect to statements made or
incorporated by reference in the Proxy Statement or the Registration Statement
based on information supplied by the Company for inclusion or incorporation by
reference therein.

                  SECTION 4.23 VOTE REQUIRED. The Requisite Parent Vote is the
only vote of the holders of any class or series of the Parent's capital stock
necessary (under the Parent Charter Documents, the GCL, other applicable Law or
otherwise) to approve this Agreement, the Option Agreement, the Merger or the
other transactions contemplated by this Agreement or the Option Agreement.

                  SECTION 4.24 INTERIM OPERATIONS OF MERGER SUB.  Merger Sub was
formed solely for the purpose of engaging in the transactions contemplated by
this Agreement and has not engaged in and will not engage in any business
activities or

                                      41
<PAGE>


conducted any operations other than in connection with the transactions
contemplated by this Agreement.


                                    ARTICLE 5

                                    COVENANTS

                  SECTION 5.1 CONDUCT OF BUSINESS OF THE COMPANY. Except as
contemplated by this Agreement or disclosed in Section 5.1 of the Company
Disclosure Letter or with the prior written consent of the Parent, during the
period from the date of this Agreement to the Effective Time, the Company will,
and will cause each of the Company Subsidiaries to, conduct its operations and
business in the ordinary course of business consistent with past practice and,
to the extent consistent therewith, use all reasonable best efforts to preserve
intact its business organization's goodwill, keep available the services of its
officers and key employees, and preserve the goodwill and business relationships
with material suppliers, facilities providers, customers and others having
business relationships with it, with the intent that such goodwill and ongoing
business relationships shall be unimpaired in all material respects at the
Effective Time. Without limiting the generality of the foregoing, and except as
otherwise contemplated by this Agreement or disclosed in Section 5.1 of the
Company Disclosure Letter, prior to the Effective Time, the Company will not,
and will not permit any Company Subsidiary to, without the prior written consent
of the Parent (which consent will not be unreasonably withheld, conditioned or
delayed):

                           (a) except to the extent required by law, adopt any
amendment to the Company Charter Documents or the comparable organizational
documents of any Company Subsidiary;

                           (b) except for issuances of capital stock of Company
Subsidiaries to the Company or a wholly owned Company Subsidiary, issue, reissue
or sell, or authorize the issuance, reissuance or sale of (i) additional shares
of capital stock of any class, or securities convertible or exchangeable into
capital stock of any class, or any rights, warrants or options to acquire any
convertible or exchangeable securities or capital stock, other than the issue of
Company Shares, in accordance with the terms of the instruments governing such
issuance on the date hereof, pursuant to the exercise of Company Stock Options
or Company Warrants outstanding on the date hereof or pursuant to the ESPP, or
(ii) any other securities in respect of, in lieu of, or in substitution for,
Company Shares outstanding on the date hereof;

                           (c) declare, set aside or pay any dividend or other
distribution (whether in cash, securities or property or any combination
thereof) in respect of any class or series of its capital stock other than
between the Company and any wholly owned Company Subsidiary;

                                      42
<PAGE>


                           (d) split, combine, subdivide, reclassify or redeem,
purchase or otherwise acquire, or propose to redeem or purchase or otherwise
acquire, any shares of its capital stock, or any of its other securities, except
for repurchase of shares in connection with the termination of the employment
relationship with any employee pursuant to agreements in effect on the date
hereof and listed in Section 3.18 of the Company Disclosure Schedule;

                           (e) except for (i) increases in salary, wages and
benefits of officers or employees of the Company or the Company Subsidiaries in
the ordinary course of business and in accordance with past practice, (ii)
increases in salary, wages and benefits granted to officers and employees of the
Company or the Company Subsidiaries in conjunction with new hires, promotions or
other changes in job status in the ordinary course of business and consistent
with past practices, or (iii) payment of bonuses to officers and employees in
the ordinary course of business (including with respect to the Company's fiscal
year ended June 30, 1999) not to exceed the amounts specified in Section 5.1 of
the Company Disclosure Letter, increase the compensation or fringe benefits
payable or to become payable to its directors, officers or employees (whether
from the Company or any Company Subsidiaries), or pay any benefit not required
by any existing plan or arrangement (including the granting of stock options,
stock appreciation rights, shares of restricted stock or performance units) or
grant any severance or termination pay to (except pursuant to existing
agreements, plans or policies), or enter into any employment or severance
agreement with, any director, officer or other employee of the Company or any
Company Subsidiaries or establish, adopt, enter into, or amend any collective
bargaining, bonus, profit sharing, thrift, compensation, stock option,
restricted stock, pension, retirement, savings, welfare, deferred compensation,
employment, termination, severance or other employee benefit plan, agreement,
trust, fund, policy or arrangement for the benefit or welfare of any directors,
officers or current or former employees, except in each case to the extent
required by applicable Law;

                           (f) acquire, sell, lease, license, transfer,
mortgage, pledge, encumber, grant or dispose of (whether by merger,
consolidation, purchase, sale or otherwise) any material property or assets,
including capital stock of Company Subsidiaries (other than the acquisition and
sale of inventory or the disposition of used or excess equipment or the purchase
of raw materials, supplies and equipment, in each case in the ordinary course of
business consistent with past practice), or enter into any material commitment
or transaction outside the ordinary course of business, other than transactions
between a wholly owned Company Subsidiary and the Company or another wholly
owned Company Subsidiary;

                           (g) (i) incur, assume or prepay any indebtedness or
incur or assume any short-term indebtedness, in each case, in an amount in
excess of the amounts specified in Section 5.1 of the Company Disclosure Letter
(including, in either case, by issuance of debt securities), except that the
Company and the Company Subsidiaries may incur, assume or prepay indebtedness in
the ordinary course of business consistent with past practice under existing
lines of credit or

                                      43
<PAGE>


existing or additional equipment financing arrangements in the amounts specified
in Section 5.1 of the Company Disclosure Letter, (ii) assume, guarantee, endorse
or otherwise become liable or responsible (whether directly, contingently or
otherwise) for the obligations of any other person except in the ordinary course
of business, or (iii) make any loans, advances or capital contributions to, or
investments in, any other person except in the ordinary course of business and
except for loans, advances, capital contributions or investments between any
wholly owned Company Subsidiary and the Company or another wholly owned Company
Subsidiary or between the Company and any other entity in which the Company has
an equity interest pursuant to the terms of the governing instruments or other
agreements relating to such entities as in effect on the date hereof;

                           (h) terminate, cancel or request any material change
in, or agree to any material change in any Contract which is material to the
Company and the Company Subsidiaries taken as a whole, or enter into any
Contract which would be material to the Company and the Company Subsidiaries
taken as a whole, in either case other than in the ordinary course of business
consistent with past practice or enter into any joint venture agreement,
partnership agreement or similar arrangement; or make or authorize any capital
expenditure, other than capital expenditures that are not, in the aggregate, for
any fiscal year, in excess of the capital expenditures provided for in the
Company's budget for the Company and the Company Subsidiaries taken as a whole
for such fiscal year (a copy of which budget has been provided to the Parent)
and are in the amounts set forth in Section 5.1 of the Company Disclosure
Letter;

                           (i) adopt a plan of complete or partial liquidation,
dissolution, merger, consolidation, restructuring, recapitalization or other
reorganization of the Company or any Company Subsidiaries (other than the
Merger);

                           (j) alter through merger, liquidation,
reorganization, restructuring or in any other fashion the corporate structure or
ownership of any Company Subsidiary;

                           (k) enter into any agreement or arrangement that
materially limits or otherwise materially restricts the Company or any Company
Subsidiary or any successor thereto, or that would, after the Effective Time,
limit or restrict the Surviving Corporation and its affiliates (including
Parent) or any successor thereto, from engaging or competing in any line of
business or in any geographic area, other than in the ordinary course of
business consistent with past practices;

                           (l) take any action with respect to accounting
policies or procedures, other than actions in the ordinary course of business
and consistent with past practice or as required pursuant to applicable Law or
GAAP;

                           (m) waive, release, assign, settle or compromise any
material rights, claims or litigation;

                                      44
<PAGE>


                           (n) make any material Tax election (unless required
by applicable Law or made in the ordinary course of business consistent with
past practice) or settle or compromise any material federal, state, local or
foreign income Tax liability; or

                           (o) authorize or enter into any formal or informal
written or other agreement or otherwise make any commitment to do any of the
foregoing.

                  SECTION 5.2 CONDUCT OF BUSINESS OF THE PARENT PENDING THE
MERGER. Prior to the Effective Time, without the prior written consent of the
Company (which will not be unreasonably withheld, conditioned or delayed), the
Parent will not, and will cause each Parent Subsidiary not to:

                           (a) except to the extent required by Law, amend its
certificate of incorporation or by-laws in any manner that would be adverse to
the holders of Parent Common Stock;

                           (b) purchase, redeem or otherwise acquire or retire,
or offer to purchase, redeem or otherwise acquire or retire, any shares of its
capital stock (other than any shares of capital stock of any Parent Subsidiary),
except for other transactions between the Parent and its wholly owned
Subsidiaries;

                           (c) declare, set aside, make or pay any dividend or
other distribution, payable in cash, stock, property or otherwise, with respect
to any of its capital stock, other than dividends or distributions by Parent
Subsidiaries;

                           (d) make any sale, transfer, disposition or
acquisition of assets or businesses that would cause a material delay in the
completion of the transactions contemplated by this Agreement or could
reasonably be expected to have a Material Adverse Effect on the Parent;

                           (e) adopt a plan of complete or partial liquidation,
dissolution, restructuring, recapitalization or other reorganization of the
Parent;

                           (f) except for issuances of capital stock of Parent
Subsidiaries to the Parent or a wholly owned Parent Subsidiary, issue, reissue
or sell, or authorize the issuance, reissuance or sale of (x) additional shares
of capital stock of any class, or securities convertible or exchangeable into
capital stock of any class, or any rights, warrants or options to acquire any
convertible or exchangeable securities or capital stock, other than the issue of
shares of Parent Common Stock, in accordance with the terms of the instruments
governing such issuance on the date hereof, pursuant to the exercise of Parent
Options and Warrants outstanding on the date hereof or granted after the date
hereof in accordance with the terms of this Agreement, and other than issuances
of options to acquire shares of Parent Common Stock in the ordinary course of
business and consistent with past practice, or (y) any

                                      45
<PAGE>


other securities in respect of, in lieu of, or in substitution for, shares of
Parent Common Stock outstanding on the date hereof; or

                           (g) authorize or enter into any formal or informal
written or other agreement or otherwise make any commitment to do any of the
foregoing.

                  SECTION 5.3 OTHER ACTIONS. During the period from the date
hereof to the Effective Time, the Company and the Parent shall not, and shall
not permit any of their respective subsidiaries to, voluntarily take any action
that would, or that could reasonably be expected to, result in any of the
conditions to the Merger set forth in Article 6 hereof not being satisfied.

                  SECTION 5.4 NOTIFICATION OF CERTAIN MATTERS. The Parent and
the Company shall promptly notify each other of (a) the occurrence or
non-occurrence of any fact or event which could reasonably be expected (i) to
cause any representation or warranty contained in this Agreement to be untrue or
inaccurate in any material respect at any time from the date hereof to the
Effective Time, (ii) to cause any material covenant, condition or agreement
hereunder not to be complied with or satisfied in all material respects or (iii)
to result in, in the case of Parent, a Material Adverse Effect on the Parent;
and, in the case of the Company, a Material Adverse Effect on the Company, (b)
any failure of the Company or the Parent, as the case may be, to comply with or
satisfy any covenant, condition or agreement to be complied with or satisfied by
it hereunder in any material respect; PROVIDED, HOWEVER, that no such
notification shall affect the representations or warranties of any party or the
conditions to the obligations of any party hereunder, (c) any notice or other
material communications from any Governmental Entity in connection with the
transactions contemplated by this Agreement and (d) the commencement of any
suit, action or proceeding that seeks to prevent or seek damages in respect of,
or otherwise relates to, the consummation of the transactions contemplated by
this Agreement.

                  SECTION 5.5 PROXY STATEMENT, REGISTRATION STATEMENT.

                           (a) As promptly as practicable after the execution of
this Agreement, the Parent and the Company shall jointly prepare and file with
the SEC a single document that will constitute (i) the proxy statement of the
Company relating to the special meeting of the Company's stockholders (the
"COMPANY STOCKHOLDERS MEETING") to be held to consider approval and adoption of
this Agreement and the Merger and the special meeting of the Parent's
stockholders (the "PARENT STOCKHOLDERS MEETING") to be held to consider approval
of the issuance of the shares of Parent Common Stock in the Merger and (ii) the
registration statement on Form S- 4 of the Parent (together with all amendments
thereto, the "REGISTRATION STATEMENT"), in connection with the registration
under the Securities Act of the Parent Common Stock to be issued to the
stockholders of the Company in connection with the Merger and the prospectus
included in the Registration Statement (such single document, together with any
amendments thereof or supplements thereto, the "PROXY STATEMENT"). The Parent
and the Company each shall use its reasonable best efforts

                                      46
<PAGE>


to cause the Registration Statement to become effective as promptly as
practicable, and, prior to the effective date of the Registration Statement (the
"REGISTRATION STATEMENT EFFECTIVE DATE"), the Parent shall take all or any
action required under any applicable Law in connection with the issuance of
Parent Common Stock pursuant to the Merger. The Parent or the Company, as the
case may be, shall furnish all information concerning the Parent or the Company
as the other party may reasonably request in connection with such actions and
the preparation of the Proxy Statement and the Registration Statement. As
promptly as practicable after the Registration Statement Effective Date, the
proxy statements and prospectus included in the Proxy Statement (collectively,
the "PROXY MATERIALS") will be mailed to the stockholders of the Company and of
the Parent. The Parent and the Company shall cause the Proxy Statement to comply
as to form and substance in all material respects with the applicable
requirements of (i) the Exchange Act, including Sections 14(a) and 14(d) thereof
and the respective regulations promulgated thereunder, (ii) the Securities Act,
(iii) the rules and regulations of the NASDAQ/NMS and (iv) the GCL.

                           (b) Subject to Section 5.8 with respect to the
Company's Board of Directors, the Proxy Statement shall include the unanimous
and unconditional recommendation of the Board of Directors of the Company to the
stockholders of the Company that they vote in favor of the adoption of this
Agreement and the Merger and the unanimous and unconditional recommendation of
the Board of Directors of the Parent to the stockholders of the Parent that they
vote, as required by NASDAQ/NMS, in favor of the issuance of the shares of
Parent Common Stock in the Merger. In addition, the Proxy Statement and the
Proxy Materials will include a copy of the written opinions of the Company
Financial Advisor referred to in Section 3.22 and the Parent Financial Advisor
referred to in Section 4.20.

                           (c) No amendment or supplement to the Proxy Statement
will be made without the approval of each of the Parent and the Company, which
approval shall not be unreasonably withheld, delayed or conditioned.

                           (d) If at any time prior to the Effective Time any
event or circumstance relating to the Company or any Company Subsidiary, or
their respective officers or directors, should be discovered by the Company that
should be set forth in an amendment or a supplement to the Proxy Statement or
the Registration Statement so that any of such documents would not include any
misstatement of a material fact or omit to state any material fact necessary to
make the statements therein in light of the circumstances under which they were
made, not misleading, the Company shall promptly inform the Parent. All
documents that the Company is responsible for filing with the SEC in connection
with the transactions contemplated hereby will comply as to form and substance
in all material respects with the applicable requirements of the GCL, the
Securities Act and the Exchange Act.

                           (e) If, at any time prior to the Effective Time, any
event or circumstance relating to the Parent or any Parent Subsidiary, or their
respective officers or directors, should be discovered by the Parent that should
be set forth in an

                                      47
<PAGE>


amendment or a supplement to the Proxy Statement or the Registration Statement
so that any of such documents would not include any misstatement of a material
fact or omit to state any material fact necessary to make the statements therein
in light of the circumstances under which they were made, not misleading, the
Parent shall promptly inform the Company. All documents that the Parent is
responsible for filing in connection with the transactions contemplated by this
Agreement will comply as to form and substance in all material aspects with the
applicable requirements of the GCL, the Securities Act and the Exchange Act.

                  SECTION 5.6 STOCKHOLDERS MEETING. (a) The Company shall call
and hold the Company Stockholders Meeting as promptly as practicable after the
Registration Statement Effective Date for the purpose of voting upon the
adoption of this Agreement and the Parent and the Company will cooperate with
each other to cause the Company Stockholders Meeting to be held as soon as
practicable following the mailing of the Proxy Materials to the stockholders of
the Company. The Company shall use its reasonable best efforts (through its
agents or otherwise) to solicit from its stockholders proxies in favor of the
adoption of this Agreement, and shall take all other action necessary or
advisable to secure the Requisite Company Vote, except to the extent that the
Board of Directors of the Company determines in good faith that doing so would
cause the Board of Directors of the Company to breach its fiduciary duties to
the Company's stockholders under applicable Law after consultation with its
outside legal counsel (who may be the Company's regularly engaged independent
legal counsel).

                           (b) The Parent shall call and hold the Parent
Stockholders Meeting as promptly as practicable after the Registration Statement
Effective Date for the purpose of voting upon the issuance of the shares of
Parent Common Stock in the Merger and the Parent and the Company will cooperate
with each other to cause the Parent Stockholders Meeting to be held as soon as
practicable following the mailing of the Proxy Materials to the stockholders of
the Parent. The Parent shall use its reasonable best efforts (through its agents
or otherwise) to solicit from its stockholders proxies in favor of the issuance
of the shares of Parent Common Stock in the Merger, and shall take all other
action necessary to secure the Requisite Parent Vote. Attached hereto as Exhibit
C is a copy of the Voting Agreement dated the date hereof between certain
holders of Parent Class B Common Stock and the Company (the "PARENT VOTING
AGREEMENT"), providing for, among other things, the agreement of such holders of
Parent Class B Common Stock to vote their shares in favor of issuance of the
shares of Parent Common Stock in the Merger at the Parent Stockholders Meeting.
Parent represents and warrants to the Company that as of the date hereof, the
affirmative vote in person or proxy by the holders of Parent Class B Common
Stock that are a party to the Parent Voting Agreement is sufficient to satisfy
the Requisite Parent Vote.

                                      48
<PAGE>


                  SECTION 5.7 ACCESS TO INFORMATION; CONFIDENTIALITY.

                           (a) Except as required under any confidentiality
agreement or similar agreement or arrangement to which the Parent or the Company
or any of their respective subsidiaries is a party or under applicable Law or
the regulations or requirements of any securities exchange or quotation service
or other self regulatory organization with whose rules the parties are required
to comply, from the date of this Agreement to the Effective Time, the Parent and
the Company shall (and shall cause their respective subsidiaries to): (i)
provide to the other (and its officers, directors, employees, accountants,
consultants, legal counsel, financial advisors, investment bankers, agents and
other representatives (collectively, "REPRESENTATIVES")) access at reasonable
times upon prior notice to the officers, employees, agents, properties, offices
and other facilities of the other and its subsidiaries and to the books and
records thereof; and (ii) furnish promptly such information concerning the
business, properties, Contracts, assets, liabilities, personnel and other
aspects of the other party and its subsidiaries as the other party or its
Representatives may reasonably request. No investigation conducted under this
Section 5.7 shall affect or be deemed to modify any representation or warranty
made in this Agreement.

                           (b) The parties shall comply with, and shall cause
their respective Representatives to comply with, all of their respective
obligations under the Confidentiality Agreement dated as of May 6, 1999 (the
"CONFIDENTIALITY AGREEMENT"), between the Parent and the Company with respect to
the information disclosed under this Section 5.7.

                  SECTION 5.8 NO SOLICITATION.

                           (a) From the date hereof until the termination hereof
and except as expressly permitted by the following provisions of this Section
5.8, the Company will not, nor will it permit any Company Subsidiary to, nor
will it authorize or permit any officer, director or employee of the Company or
any Company Subsidiary and each investment banker, attorney, accountant or other
advisor or representative of, the Company or any Company Subsidiary to, directly
or indirectly, (i) solicit, initiate or encourage the submission of any
Acquisition Proposal (as hereinafter defined) or (ii) participate in any
discussions or negotiations regarding, or furnish to any person any information
with respect to, or take any other action to facilitate, an Acquisition Proposal
or any inquiries or the making of any proposal that constitutes, or may
reasonably be expected to lead to, an Acquisition Proposal; PROVIDED, HOWEVER,
that subject to compliance by the Company with the provisions of Section 5.8(b),
the Company's Board of Directors may furnish information to, or enter into
discussions or negotiations with, any person that makes an unsolicited bona fide
written Acquisition Proposal if, and only to the extent that (A) the Company's
Board of Directors, after consultation with its outside legal counsel,
determines in good faith that such action is legally advisable for the Company's
Board of Directors to comply with its fiduciary duties to the Company's
stockholders under applicable Law, (B) such Acquisition Proposal is not subject
to any financing contingencies or

                                      49
<PAGE>


is, in the good faith judgment of the Company's Board of Directors after
consultation with a nationally recognized financial advisor, reasonably capable
of being financed, (C) the Company's Board of Directors determines in good faith
that such Acquisition Proposal, based upon such matters as it deems relevant
including after consultation with a nationally recognized financial advisor,
would, if consummated, result in a transaction more favorable to the Company's
stockholders from a financial point of view than the Merger (any such more
favorable Acquisition Proposal being referred to herein as a "SUPERIOR
PROPOSAL"), and (D) prior to taking such action, the Company (x) provides
reasonable notice to Parent to the effect that it is taking such action and (y)
receives from such person an executed confidentiality agreement in reasonably
customary form.

                           (b) Prior to providing any information to or entering
into discussions with any person in connection with an Acquisition Proposal by a
person as set forth in Section 5.8(a), the Company shall notify Parent orally
and in writing of any Acquisition Proposal (including, without limitation, the
material terms and conditions thereof and the identity of the person making it)
or any inquiries indicating that any person is considering making or wishes to
make an Acquisition Proposal, as promptly as practicable (but in no case later
than 24 hours) after its receipt thereof, and shall provide Parent with a copy
of any written Acquisition Proposal or amendments or supplements thereto, and
shall thereafter inform Parent on a prompt basis of (x) the status of any
discussions or negotiations with any such third party, and any material changes
to the terms and conditions of such Acquisition Proposal, and shall promptly
give Parent a copy of any information delivered to such person which has not
previously been reviewed by Parent and (y) any request by any person for
nonpublic information relating to its or any Company Subsidiaries' properties,
books or records.

                           (c) Immediately after the execution and delivery of
this Agreement, the Company will, and will cause its subsidiaries and
affiliates, and their respective officers, directors, employees, investment
bankers, attorneys, accountants and other agents to, cease and terminate any
existing activities, discussions or negotiations with any parties conducted
heretofore with respect to any possible Acquisition Proposal. The Company agrees
that it will take the necessary steps to promptly inform the individuals or
entities referred to in the first sentence of Section 5.8(a) of the obligations
undertaken in this Section 5.8.

                           (d) The Company's Board of Directors will not
withdraw or modify, or propose to withdraw or modify, in a manner adverse to
Parent, its approval or recommendation of this Agreement or the Merger except in
connection with a Superior Proposal; PROVIDED, THAT, neither the Company nor the
Board of Directors of the Company may in such instance terminate this Agreement
but instead the Company, at the option of and as directed by the Parent (in
addition to the rights of Parent as set forth in Section 7.1(d)), shall,
notwithstanding such withdrawal or modification of the recommendation or
approval of this Agreement or the Merger by the Company's Board of Directors
and/or the recommendation by the Company's Board of Directors that the Company's
stockholders reject this Agreement or the

                                      50
<PAGE>


Merger at the Company Stockholder Meeting, submit approval of this Agreement and
the Merger as promptly as practicable to a vote of the holders of Company Shares
at the Company Stockholders Meeting as contemplated by this Agreement, it being
understood and agreed that, Parent, Company and Merger Sub elect that this
Agreement to be governed by the second sentence of Section 251(c) of the GCL. If
the Parent exercises its option under this Section 5.8(d) to require the Company
to submit this Agreement to its stockholders for approval, the Parent shall no
longer be entitled to terminate this Agreement under Section 7.1(d) hereof;
PROVIDED, that the foregoing shall not limit the Parent's right to (i) terminate
this Agreement under Section 7.1(e)(i) if notwithstanding the exercise of the
option by the Parent to require the Company to submit this Agreement to the
Company's stockholders for approval, this Agreement and the Merger fails to
obtain the Requisite Company Vote at the Company's Stockholders Meeting and (ii)
receive the amounts that are otherwise payable upon a termination of this
Agreement pursuant to Section 7.1(e)(i) as provided in Section 7.5(b).

                           (e) Nothing contained in this Section 5.8 shall
prohibit the Company from taking and disclosing to its stockholders a position
contemplated by Rule 14e-2(a) promulgated under the Exchange Act or from making
any disclosure to the Company's stockholders if, in the good faith reasonable
judgment of the Company's Board of Directors, after consultation with outside
legal counsel, that failure to so disclose would be inconsistent with its
obligations under applicable law.

                           (f) For purposes of this Agreement, "ACQUISITION
PROPOSAL" means an inquiry, offer or proposal regarding any of the following
(other than the Transactions contemplated by this Agreement) involving the
Company or any Company Subsidiary: (i) any merger, consolidation, share
exchange, recapitalization, business combination or other similar transaction;
(ii) any sale, lease, exchange, mortgage, pledge, transfer or other disposition
of all or substantially all the assets of the Company and the Company
Subsidiaries, taken as a whole, in a single transaction or series of related
transactions; (iii) any tender offer or exchange offer for fifteen percent (15%)
or more of the outstanding shares of Company Common Stock or the filing of a
registration statement under the Securities Act in connection therewith; or (iv)
any public announcement of a proposal or plan to do any of the foregoing or any
agreement to engage in any of the foregoing.

                  SECTION 5.9 AFFILIATES. Concurrently with the execution of
this Agreement, the Company is delivering to Parent a letter identifying all
persons who, to the knowledge of the Company, is an "affiliate" of the Company
under Rule 145 under the Securities Act. The Company shall use its reasonable
best efforts to deliver to Parent prior to the Effective Time, copies of letter
agreements, each in the form of Exhibit D hereto, executed by each such Person
so identified as an "affiliate" of the Company.

                                      51
<PAGE>


                  SECTION 5.10 DIRECTORS' AND OFFICERS' INDEMNIFICATION AND
INSURANCE.

                           (a) The Parent agrees that all rights to
indemnification now existing in favor of any current or former employee, agent,
director or officer of the Company and the Company Subsidiaries (the
"INDEMNIFIED PARTIES") as provided in their respective charters or by-laws, in
an agreement between an Indemnified Party and the Company or one of the Company
Subsidiaries, or otherwise in effect on the date hereof shall survive the Merger
and shall continue in full force and effect for a period of not less than six
years from the Effective Time; PROVIDED that in the event any claim or claims
are asserted or made within such six-year period, all rights to indemnification
in respect of any such claim or claims shall continue until final disposition of
any and all such claims. The Parent also agrees to indemnify all Indemnified
Parties to the fullest extent permitted by applicable law with respect to all
acts and omissions arising out of such individuals' services as officers,
directors, employees or agents of the Company or any of the Company Subsidiaries
or as trustees or fiduciaries of any plan for the benefit of employees, or
otherwise on behalf of, the Company or any of the Company Subsidiaries,
occurring prior to the Effective Time including the transactions contemplated by
this Agreement. Without limiting of the foregoing, in the event any such
Indemnified Party is or becomes involved in any capacity in any action,
proceeding or investigation in connection with any matter, including the
transactions contemplated by this Agreement, occurring prior to, and including,
the Effective Time, the Parent will pay as incurred such Indemnified Party's
legal and other expenses (including the cost of any investigation and
preparation) incurred in connection therewith.

                           (b) The Parent agrees to cause to be maintained in
effect by the Surviving Corporation for not less than six years from the
Effective Time the current policies of the directors' and officers' liability
insurance maintained by the Company; PROVIDED that the Surviving Corporation may
substitute therefor policies of at least the same coverage containing terms and
conditions which are no less advantageous and provided that such substitution
shall not result in any gaps or lapses in coverage with respect to matters
occurring prior to the Effective Time; and PROVIDED, FURTHER, that the Surviving
Corporation shall not be required to pay an annual premium in excess of 200% of
the aggregate annualized premiums paid by the Company in 1999 (which the Company
represents is approximately $400,000 for 1999) (the "MAXIMUM AMOUNT") if the
Surviving Corporation is unable to obtain the insurance required by this Section
5.10(b) it shall obtain as much comparable insurance as possible for an annual
premium equal to such Maximum Amount; provided, further, that the Company may,
prior to the Effective Time, purchase director's and officer's liability
insurance tail coverage in an amount not in excess of the principal amount of
such insurance on the date hereof which would satisfy Parent's obligations as
set forth in this Section 5.10(b), so long as the total premium for such tail
coverage would not exceed $1,000,000.

                                      52
<PAGE>


                           (c) In the event that the Surviving Corporation or
any of its successors or assigns (i) consolidates with merges into any other
person and is not the continuing or surviving corporation or entity of such
consolidation or merger or (ii) transfers or conveys all or substantially all of
its properties and assets to any person, then, and in each such case, the Parent
shall cause proper provision to be made so that the successors and assigns of
the Surviving Corporation assume the obligations set forth in this Section 5.10.

                  SECTION 5.11 LETTERS OF ACCOUNTANTS.

                           (a) The Company shall use its reasonable best efforts
to cause to be delivered to the Parent "comfort" letters of Deloitte & Touche
LLP, the Company's independent public accountants, dated and delivered on the
Registration Statement Effective Date and as of the Effective Time, and
addressed to the Parent in form and substance reasonably satisfactory to the
Parent and reasonably customary in scope and substance for letters delivered by
independent public accountants in connection with transactions contemplated
hereby.

                           (b) The Parent shall use its reasonable best efforts
to cause to be delivered to the Company "comfort" letters of Ernst & Young LLP,
the Parent's independent public accountants, dated and delivered the
Registration Statement Effective Date and as of the Effective Time, and
addressed to the Company, in form and substance reasonably satisfactory to the
Company and reasonably customary in scope and substance for letters delivered by
independent public accountants in connection with transactions contemplated
hereby.

                  SECTION 5.12 REASONABLE BEST EFFORTS. Subject to the terms and
conditions provided in this Agreement and to applicable legal requirements, each
of the parties hereto agrees to use its reasonable best efforts, in the case of
the Company consistent with the fiduciary duties of the Company's Board of
Directors, to take, or cause to be taken, all action, and to do, or cause to be
done, and to assist and cooperate with the other parties hereto in doing, as
promptly as practicable, all things necessary, proper or advisable under
applicable laws and regulations to ensure that the conditions set forth in
Article 6 are satisfied and to consummate and make effective the transactions
contemplated by this Agreement. If at any time after the Effective Time any
further action is necessary or desirable to carry out the purposes of this
Agreement, including the execution of additional instruments, the proper
officers and directors of each party to this Agreement shall take all such
necessary action in the case of the Company, consistent with the fiduciary
duties of the Company's Board of Directors.

                                      53
<PAGE>

                  SECTION 5.13 CONSENTS; FILINGS; FURTHER ACTION.

                           (a) Upon the terms and subject to the conditions
hereof, each of the parties hereto shall use its reasonable best efforts to (i)
take, or cause to be taken, all appropriate action, and do, or cause to be done,
all things necessary, proper or advisable under applicable Law or otherwise to
consummate and make effective the Merger and the other transactions contemplated
hereby, (ii) obtain from Governmental Entities any Company Governmental Consents
and Parent Governmental Consents and any other consents, licenses, permits,
waivers, approvals, authorizations or orders required to be obtained or made by
the Parent or the Company or any of their subsidiaries in connection with the
authorization, execution and delivery of this Agreement and the consummation of
the Merger and the other transactions contemplated hereby, (iii) make all
necessary filings, and thereafter make any other submissions either required or
reasonably deemed appropriate by each of the parties, with respect to this
Agreement and the Merger and the other transactions contemplated hereby required
under (A) the Securities Act, the Exchange Act and any other applicable federal
or Blue Sky Laws, (B) the HSR Act and any applicable other foreign antitrust,
anti-monopoly or similar Laws, (C) the GCL, (D) any other applicable Law and (E)
the rules and regulations of NASDAQ/NMS. The parties hereto shall cooperate and
consult with each other in connection with the making of all such filings,
including by providing copies of all such documents to the nonfiling party and
its advisors prior to filing. No party to this Agreement shall consent to any
voluntary extension of any statutory deadline or waiting period or to any
voluntary delay of the consummation of the Merger and the other transactions
contemplated hereby at the behest of any Governmental Entity without the consent
and agreement of the other parties to this Agreement, which consent shall not be
unreasonably withheld or delayed.

                           (b) Without limiting the generality of Section
5.13(a), each party hereto shall promptly inform the others of any material
communication from the Federal Trade Commission, the Department of Justice or
any other domestic or foreign government or governmental or multinational
authority regarding any of the transactions contemplated by this Agreement. If
any party or any affiliate thereof receives a request for additional information
or documentary material from any such government or authority with respect to
the transactions contemplated by this Agreement, then such party will endeavor
in good faith to make, or cause to be made, as soon as reasonably practicable
and after consultation with the other party, an appropriate response in
compliance with such request. The Parent will advise the Company promptly in
respect of any understandings, undertakings or agreements (oral or written)
which the Parent proposes to make or enter into with the Federal Trade
Commission, the Department of Justice or any other domestic or foreign
government or governmental or multinational authority in connection with the
transactions contemplated by this Agreement. In furtherance and not in
limitation of the foregoing, the Parent shall use its reasonable best efforts to
resolve such objections, if any, as may be asserted with respect to the
transactions contemplated by this Agreement under any antitrust, competition or
trade regulatory laws, rules or

                                      54
<PAGE>


regulations of any domestic or foreign government or governmental authority or
any multinational authority. Notwithstanding the foregoing, nothing in this
Section 5.13 shall require, or be construed to require, the Parent or the
Company, in connection with the receipt of any regulatory approval, to proffer
to, or agree to (A) sell or hold separate and agree to sell, divest or to
discontinue to or limit, before or after the Effective Time, any assets,
businesses, or interest in any assets or businesses of the Parent, the Company
or any of their respective affiliates (or to the consent to any sale, or
agreement to sell, or discontinuance or limitation by the Parent or the Company,
as the case may be, of any of its assets or businesses) or (B) agree to any
conditions relating to, or changes or restriction in, the operations of any such
asset or businesses which, in either case of (A) or (B), could reasonably be
expected to result in a Material Adverse Effect on the Parent or a Material
Adverse Effect on the Company or to materially and adversely impact the economic
or business benefits to such party of the transactions contemplated by this
Agreement.

                  SECTION 5.14 PLAN OF REORGANIZATION. This Agreement is
intended to constitute a "plan of reorganization" within the meaning of Section
1.368-2(g) of the income tax regulations promulgated under the Code. From and
after the date of this Agreement and until the Effective Time, each party hereto
shall use its reasonable best efforts (i) to cause the Merger to qualify, and
will not, without the prior written consent of the parties hereto, knowingly
take any actions or cause any actions to be taken, or knowingly fail to take any
action or fail to cause any action to be taken, which could prevent the Merger
from qualifying, as a reorganization under the provisions of section 368(a) of
the Code, and (ii) to obtain (in the case of the Company) or to cause to obtain
(in the case of the Parent and Merger Sub) the opinion of counsel referred to in
Section 6.3(c) below, including the execution of the letters of representations
referred to therein. Following the Effective Time, and consistent with any such
consent, none of the Surviving Corporation, the Parent or any of their
affiliates shall knowingly take any action or cause any action to be taken, or
knowingly fail to take any action or fail to cause any action to be taken, which
would cause the Merger to fail to so qualify as a reorganization under section
368(a) of the Code.

                  SECTION 5.15 PUBLIC ANNOUNCEMENTS. The initial press release
concerning the Merger shall be a joint press release and, thereafter, the Parent
and Merger Sub and the Company shall consult with each other before issuing, and
provide each other the opportunity to review, comment upon and concur with, any
press release or other public statements with respect to this Agreement or any
of the transactions contemplated hereby and shall not issue any such press
release or make any such public statement prior to such consultation, except to
the extent required by applicable Law or the requirements of NASDAQ/NMS, in
which case the issuing party shall use its reasonable best efforts to consult
with the other parties before issuing any such release or making any such public
statement.

                  SECTION 5.16 OBLIGATIONS OF MERGER SUB.  The Parent shall take
all actions necessary to cause Merger Sub to perform its obligations under this

                                      55
<PAGE>


Agreement and to consummate the Merger on the terms and subject to the
conditions set forth in this Agreement.

                  SECTION 5.17 LISTINGS AND DE-LISTINGS. The Parent shall use
its reasonable best efforts to cause the shares of Parent Common Stock to be
issued in the Merger to be approved for quotation on NASDAQ/NMS, subject to
official notice of issuance, prior to the Effective Time. The parties shall use
their reasonable best efforts to cause the Surviving Corporation to cause the
Company Common Stock to be de-listed from NASDAQ/NMS and de-registered under the
Exchange Act as soon as practicable following the Effective Time.

                  SECTION 5.18 EXPENSES. Except as otherwise provided in Section
7.5(b), whether or not the Merger is consummated, all Expenses incurred in
connection with this Agreement and the Merger and the other transactions
contemplated hereby shall be paid by the party incurring such Expense, except
that Expenses incurred in connection with the filing fee for the Proxy Statement
and Registration Statement and printing and mailing the Proxy Materials shall be
shared equally by the Parent and the Company and the expenses of the "comfort"
letters referred to in Section 5.11 shall be paid or reimbursed by the Parent.

                  SECTION 5.19 TAKEOVER STATUTES. If any Takeover Statute is or
may become applicable to the Merger or the other transactions contemplated
hereby, each of the Parent and the Company and its board of directors shall
grant such approvals and take such actions as are necessary so that such
transactions may be consummated as promptly as practicable on the terms
contemplated by this Agreement and otherwise act to eliminate or minimize the
effects of such statute or regulation on such transactions.

                  SECTION 5.20 EMPLOYEE BENEFITS.

                           (a) From and after the Effective Time, the Parent
shall, except as may otherwise be required by applicable Law, cause the
Surviving Corporation to honor in accordance with their terms all benefits and
obligations under the Company Benefit Plans, each as in effect on the date of
this Agreement (or as amended as contemplated hereby or with the prior written
consent of the Parent).

                           (b) For a period of one year following the Effective
Time, the Parent shall provide to individuals who are employed by the Company
and its Subsidiaries as of the Effective Time ("AFFECTED EMPLOYEES"), employee
benefits which, in the aggregate, are substantially equivalent to the benefits
provided pursuant to the Company's or any Company Subsidiaries' employee benefit
plans, programs and policies immediately prior to the Effective Time.

                           (c) Except to the extent necessary to prevent the
duplication of benefits, the Parent will, or will cause the Surviving
Corporation to, give Affected Employees full credit for purposes of eligibility,
vesting, benefit accrual and

                                      56
<PAGE>


determination of the level of benefits under any employee benefit plans or
arrangements maintained by the Parent or any Parent Subsidiary for such Affected
Employees' service with the Company or any Company Subsidiary to the same extent
recognized by the Company immediately prior to the Effective Time.

                           (d) The Parent will, or will cause the Surviving
Corporation to, use its reasonable best efforts to (i) waive all limitations as
to preexisting conditions, exclusions and waiting periods with respect to
participation and coverage requirements applicable to the Affected Employees
under any welfare benefit plans that such employees may be eligible to
participate in after the Effective Time, other than limitations or waiting
periods that are already in effect with respect to such employees and that have
not been satisfied as of the Effective Time under any welfare plan maintained
for the Affected Employees immediately prior to the Effective Time, and (ii)
provide each Affected Employee with credit for any co-payments and deductibles
paid prior to the Effective Time in satisfying any applicable deductible or
out-of-pocket requirements under any welfare plans that such employees are
eligible to participate in after the Effective Time.

                  SECTION 5.21 FORM S-8. No later than the Effective Time, the
Parent shall file with the Commission a registration statement on an appropriate
form or a post-effective amendment to a previously filed registration statement
under the Securities Act, with respect to the Parent Common Stock issuable in
respect of Company Stock Options and Company Warrants, and shall use its
reasonable best efforts to maintain the current status of the prospectus
contained therein, as well as comply with any applicable state securities or
"blue sky" laws, for as long as such options or other stock based awards remain
outstanding.

                  SECTION 5.22 BOARD OF DIRECTORS OF THE PARENT. The Parent
agrees that concurrently with the Effective Time, the Parent shall take such
action as may be necessary to enable Mr. Sherman Tuan and Mr. David Rand to be
appointed to the Board of Directors of the Parent.

                  SECTION 5.23 EMPLOYEE STOCK PURCHASE PLAN. As of the Effective
Time, the ESPP shall be terminated. The rights of participants in the ESPP with
respect to any Offering Period or Accumulation Period (as defined in the ESPP)
then underway under the ESPP shall be determined by treating the last business
day prior to the Effective Time as the last day of such Offering Period and
Accumulation Period and by making such other PRO RATA adjustments as may be
necessary to reflect the reduced Offering Period and Accumulation Period but
otherwise treating such Offering Period and Accumulation Period as a fully
effective and completed Offering Period and Accumulation Period for all purposes
of the ESPP. Prior to the Effective Time, the Company shall take all actions
(including, if appropriate, amending the terms of the ESPP) that are necessary
to give effect to the transactions contemplated by this Sections 5.23.


                                      57
<PAGE>


                                    ARTICLE 6

                                   CONDITIONS

                  SECTION 6.1 CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT
THE MERGER. The respective obligation of each party to effect the Merger is
subject to the satisfaction or waiver at or prior to the Closing Date of each of
the following conditions:

                           (a) STOCKHOLDER APPROVAL. This Agreement shall have
been duly approved by the Requisite Company Vote and the issuance of shares of
Parent Common Stock in the Merger shall have been duly approved by the Requisite
Parent Vote.

                           (b) LISTING. The shares of Parent Common Stock
issuable to the Company's stockholders pursuant to this Agreement shall have
been authorized for quotation on NASDAQ/NMS upon official notice of issuance.

                           (c) GOVERNMENTAL CONSENTS. The waiting period
applicable to the consummation of the Merger under the HSR Act shall have
expired or been terminated and other than the filing provided for in Section
1.3, all material notices, reports and other filings required to be made prior
to the Effective Time by the Company or the Parent or any of their respective
subsidiaries with, and all material consents, registrations, approvals, permits
and authorizations required to be obtained prior to the Effective Time by, the
Company or the Parent or any of their respective subsidiaries from, any
Governmental Entity in connection with the execution and delivery of this
Agreement and the consummation of the Merger and the other transactions
contemplated hereby (including, without limitation, all Company Governmental
Consents and Parent Governmental Consents) shall have been made or obtained (as
the case may be) upon terms and conditions that could not reasonably be expected
to result in Material Adverse Effect on the Parent or a Material Adverse Effect
on the Company; PROVIDED, that each of the parties shall have used its
reasonable best efforts to so make or obtain.

                           (d) ORDERS, INJUNCTIONS. No Law, order, injunction or
decree that prohibits, restrains, enjoins or otherwise prohibits (whether
temporarily, preliminarily or permanently) consummation of the Merger shall have
been enacted, issued, promulgated, enforced or entered by any court or
Governmental Entity of competent jurisdiction and there shall not be pending any
suit, action or proceeding by any Governmental Entity which seeks to restrain,
enjoin or otherwise prohibit (whether temporarily, preliminarily or permanently)
consummation of the Merger; PROVIDED, that each of the parties shall have used
its reasonable best efforts to prevent any such enactment, issuance,
promulgation, enforcement or entry and to appeal as promptly as practicable any
such Law, order injunction or decree.

                                      58
<PAGE>


                           (e) REGISTRATION STATEMENT. The Registration
Statement shall have become effective under the Securities Act. No stop order
suspending the effectiveness of such registration statements shall have been
issued, and no proceedings for that purpose shall have been initiated or be
threatened by the SEC.

                  SECTION 6.2 CONDITIONS TO OBLIGATIONS OF THE PARENT AND MERGER
SUB. The obligations of each of the Parent and Merger Sub to effect the Merger
and consummate the other transactions contemplated hereby to be consummated on
the Closing Date are also subject to the satisfaction or waiver by the Parent at
or prior to the Effective Time of the following conditions:

                           (a) REPRESENTATIONS AND WARRANTIES. The
representations and warranties of the Company set forth in this Agreement that
are qualified as to materiality shall be true and correct, and the
representations and warranties of the Company set forth in this Agreement that
are not so qualified shall be true and correct in all material respects, in each
case as of the date of this Agreement and as of the Closing Date, as though made
on and as of the Closing Date, except to the extent the representation or
warranty is expressly limited by its terms to another date, and the Parent shall
have received a certificate (which certificate may be qualified by knowledge to
the same extent as the representations and warranties of the Company contained
in this Agreement are so qualified) signed on behalf of the Company by an
executive officer of the Company to such effect.

                           (b) PERFORMANCE OF OBLIGATIONS OF THE COMPANY. The
Company shall have performed or complied with in all material respects all
obligations required to be performed by it under this Agreement at or prior to
the Closing Date, and the Parent shall have received a certificate signed on
behalf of the Company by an executive officer of the Company to such effect.

                           (c) EMPLOYMENT AGREEMENTS. The employment agreements
entered into between the Company and each of Mr. Sherman Tuan and Mr. David
Rand, as amended and restated on the date hereof, shall be in full force and
effect on the Closing Date and neither Mr. Tuan nor Mr. Rand shall have died,
become permanently incapacitated or otherwise have refused to perform services
under such employment agreements in violation of such agreements or be in
material breach of such employment agreements.

                  SECTION 6.3 CONDITIONS TO OBLIGATION OF THE COMPANY. The
obligation of the Company to effect the Merger and consummate the other
transactions contemplated hereby to be consummated on the Closing Date is also
subject to the satisfaction or waiver by the Company at or prior to the
Effective Time of the following conditions:

                           (a) REPRESENTATIONS AND WARRANTIES. The
representations and warranties of each of the Parent and Merger Sub set forth in
this Agreement that are qualified as to materiality shall be true and correct,
and the representations and

                                      59
<PAGE>


warranties of the Parent and Merger Sub set forth in this Agreement that are not
so qualified shall be true and correct in all material respects, in each case as
of the date of this Agreement and as of the Closing Date, as though made on and
as of the Closing Date, except to the extent the representation or warranty is
expressly limited by its terms to another date, and the Company shall have
received a certificate (which certificate may be qualified by knowledge to the
same extent as the representations and warranties of each of the Parent and
Merger Sub contained in this Agreement are so qualified) signed on behalf of
each of the Parent and Merger Sub by an executive officer of the Parent to such
effect.

                           (b) PERFORMANCE OF OBLIGATIONS OF THE PARENT AND
MERGER SUB. Each of the Parent and Merger Sub shall have performed or complied
with in all material respects all obligations required to be performed by it
under this Agreement at or prior to the Closing Date, and the Company shall have
received a certificate signed on behalf of the Parent and Merger Sub by an
executive officer of the Parent to such effect.

                           (c) TAX OPINION. The Company shall have received the
opinion of Skadden, Arps, Slate, Meagher & Flom LLP, counsel to the Company,
dated the Closing Date, to the effect that the Merger will be treated for
federal income tax purposes as a reorganization within the meaning of section
368(a) of the Code and that each party hereto will be treated as a "party to the
reorganization" within the meaning of section 368(b) of the Code. The issuance
of such opinion shall be conditioned upon the receipt by such counsel of
customary representation letters from each of the Parent, Merger Sub and the
Company substantially in the forms of those contained in the Parent officer's
certificate and the Company's officer's certificate attached hereto as Exhibit
E-1 and Exhibit E-2, respectively.


                                    ARTICLE 7

                                   TERMINATION

                  SECTION 7.1 TERMINATION. This Agreement may be terminated and
the Merger may be abandoned at any time prior to the Effective Time,
notwithstanding any requisite approval and adoption of this Agreement, as
follows:

                           (a) by mutual written consent of the Parent and the
Company duly authorized by their respective boards of directors;

                           (b) by either the Parent or the Company, if the
Effective Time shall not have occurred on or before December 31, 1999; PROVIDED,
HOWEVER, that the right to terminate this Agreement under this Section 7.1(b)
shall not be available to the party whose failure to fulfill any obligation
under this Agreement shall have been the cause of, or resulted in, the failure
of the Effective Time to occur on or before such date;

                                      60
<PAGE>


                           (c) by either the Parent or the Company, if any order
injunction or decree preventing the consummation of the Merger shall have been
entered by any court of competent jurisdiction or Governmental Entity and shall
have become final and nonappealable;

                           (d) by the Parent, if (i) the Board of Directors of
the Company withdraws, modifies or changes its approval or recommendation of
this Agreement in a manner adverse to the Parent or shall have resolved to do
so, (ii) the Board of Directors of the Company shall have recommended to the
stockholders of the Company an Acquisition Proposal or shall have resolved to do
so or the Company shall have entered into an agreement with respect to a
Superior Proposal, or (iii) a tender offer or exchange offer for more than 35%
of the outstanding shares of capital stock of the Company is commenced and the
Board of Directors of the Company fails to recommend against acceptance of such
tender offer or exchange offer by its stockholders (including by taking no
position with respect to the acceptance of such tender offer or exchange offer
by its stockholders);

                           (e) by the Parent or the Company, (i) if this
Agreement and the Merger shall fail to receive the requisite vote for adoption
at the Company Stockholders Meeting or any adjournment or postponement thereof,
or (ii) if the issuance of shares of Parent Common Stock in the Merger shall
fail to receive the requisite vote for adoption at the Parent Stockholders
Meeting or an adjournment or postponement thereof;

                           (f) by the Parent, upon a breach of any material
representation, warranty, covenant or agreement on the part of the Company set
forth in this Agreement, or if any representation or warranty of the Company
shall have become untrue, in either case such that the conditions set forth in
either of Section 6.2(a) or 6.2(b) would not be satisfied (a "TERMINATING
COMPANY BREACH"); PROVIDED, HOWEVER, that, if such Terminating Company Breach is
curable by the Company through the exercise of its reasonable best efforts prior
to December 31, 1999 and for so long as the Company continues to exercise such
reasonable best efforts, the Parent may not terminate this Agreement under this
Section 7.1(f) if such Terminating Company Breach has been cured prior to
December 31, 1999;

                           (g) by the Company, upon breach of any material
representation, warranty, covenant or agreement on the part of the Parent set
forth in this Agreement, or if any representation or warranty of the Parent
shall have become untrue, in either case such that the conditions set forth in
either of Section 6.3(a) or 6.3(b) would not be satisfied (a "TERMINATING PARENT
BREACH"); PROVIDED, HOWEVER, that, if such Terminating Parent Breach is curable
by the Parent through its reasonable best efforts prior to December 31, 1999 and
for so long as the Parent continues to exercise such reasonable best efforts,
the Company may not terminate this Agreement under this Section 7.1(g) if such
Terminating Parent Breach has been cured prior to December 31, 1999.

                                      61
<PAGE>


                  SECTION 7.2 EFFECT OF TERMINATION. Except as provided in
Section 8.2, in the event of termination of this Agreement pursuant to Section
7.1, this Agreement shall forthwith become void, there shall be no liability
under this Agreement on the part of the Parent, Merger Sub or the Company or any
of their respective Representatives, and all rights and obligations of each
party hereto shall cease, subject to the remedies of the parties set forth in
Sections 7.5(b) and (c); PROVIDED, HOWEVER, that nothing in this Agreement shall
relieve any party from liability for the wilful and material breach of any of
its representations and warranties or any of its covenants or agreements set
forth in this Agreement.

                  SECTION 7.3 AMENDMENT. This Agreement may be amended by the
agreement of each of the parties hereto by action taken by or on behalf of their
respective Boards of Directors at any time prior to the Effective Time; PROVIDED
that, after the approval of this Agreement by the stockholders of the Company,
no amendment may be made that would reduce the amount or change the type of
consideration into which each Company Share shall be converted upon consummation
of the Merger and no amendment may be made that is not permitted under
applicable Law, in each case, without further approval by the stockholders of
the Company. This Agreement may not be amended except by an instrument in
writing signed by each of the parties hereto.

                  SECTION 7.4 WAIVER. At any time prior to the Effective Time,
any party hereto may (a) extend the time for the performance of any obligation
or other act of any other party hereto, (b) waive any inaccuracy in the
representations and warranties contained in this Agreement or in any document
delivered pursuant hereto, and (c) subject to the proviso of Section 7.3, waive
compliance by the other party with any agreement or condition contained in this
Agreement. Any waiver of a condition set forth in Section 6.1, or any
determination that such a condition has been satisfied, will be effective only
if made in writing by each of the Company and the Parent and, unless otherwise
specified in such writing, shall thereafter operate as a waiver (or
satisfaction) of such conditions for any and all purposes of this Agreement. Any
such extension or waiver shall be valid if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

                  SECTION 7.5 EXPENSES FOLLOWING TERMINATION.

                           (a) Except as set forth in this Section 7.5, all
Expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid in accordance with the provisions of Section
5.18. For purposes of this Agreement, "EXPENSES" consist of all out-of-pocket
expenses (including, all fees and expenses of counsel, accountants, investment
bankers, experts and consultants to a party hereto and its affiliates) incurred
by a party or on its behalf in connection with or related to the authorization,
preparation, negotiation, execution and performance of this Agreement, the
preparation, printing, filing and mailing of the Proxy Statement and/or the
Proxy Materials (as the case may be), the solicitation of stockholder

                                      62
<PAGE>


approvals and all other matters related to the closing of the transactions
contemplate hereby.

                           (b) If this Agreement is terminated pursuant to
Section 7.1(d), Section 7.1(e)(i) or Section 7.1(f) solely as a result of any
wilful and material breach by the Company or any Company Subsidiary of any
material representation, warranty, covenant or agreement set forth in this
Agreement (a "QUALIFYING SECTION 7.1(f) TERMINATION"), then the Company shall
(x) on the date specified in the proviso to this Section 7.5(b) in the case of a
termination of this Agreement pursuant to Section 7.1(e)(i) or as a result of a
Qualifying Section 7.1(f) Termination, or (y) simultaneously with a termination
of this Agreement by the Parent pursuant to Section 7.1(d), pay to the Parent
(by wire transfer of immediately available funds to an account designated by the
Parent) a termination fee of $50,000,000 (the "TERMINATION AMOUNT") plus the
reimbursement of all of the Parent's actual and documented out-of-pocket
expenses (including all investment banking, legal, accounting and other similar
expenses) up to a maximum reimbursable amount of $5,000,000 (the "PARENT
EXPENSES"); PROVIDED, HOWEVER, that the Company shall not be obligated to pay
such fee to the Parent if this Agreement is terminated pursuant to Section
7.1(e) or as a result of a Qualifying Section 7.1(f) Termination unless and
until (i) at the time of the Company Stockholder Meeting in the case of
termination pursuant to Section 7.1(e) or on the date the Parent terminates this
Agreement pursuant to Section 7.1(f) as a result of a Qualifying Section 7.1(f)
Termination, the Company has received a bona fide alternative Acquisition
Proposal or a third party has made or publicly announced its intention to make a
bona fide Acquisition Proposal, and (ii) within twelve months after the
termination of this Agreement, the Company enters into a definitive agreement
providing for an alternative Acquisition Proposal with any third party or an
alternative Acquisition Proposal is consummated with any third party (for the
purposes of this proviso the term "Acquisition Proposal" shall have the meaning
assigned to such term in Section 5.8 except that the references to "15%" in the
definition of "Acquisition Proposal" in Section 5.8(f) shall be deemed to be
references to "50%" and "Acquisition Proposal" shall only be deemed to refer to
a transaction involving the Company, or with respect to assets (including the
shares of any Subsidiary), the Company and the Company Subsidiaries, taken as a
whole, and not any Company Subsidiaries alone), in which event the Termination
Amount plus the Parent Expenses shall be paid promptly (and in any event within
two (2) days of receipt by Company of a written notice from Parent) following
the earlier of the execution of such definitive agreement providing for an such
alternative Acquisition Proposal or the consummation of such an alternative
Acquisition Proposal, as the case may be.

                           (c) The Company acknowledges that the agreements
contained in this Section 7.5 are an integral part of the transactions
contemplated by this Agreement, and that, without these agreements, the Parent
would not enter into this Agreement; accordingly, if the Company fails to pay
promptly the Termination Amount and/or the Parent Expenses, and, in order to
obtain such payment, the Parent commences a suit which results in a judgment
against the Company for the

                                      63
<PAGE>


Termination Amount and/or the Parent Expenses, the Company shall pay to Parent
its reasonable costs and expenses in connection with such suit, together with
interest on the amount of the Termination Amount at the prime rate of Chase Bank
in effect on the date such payment was required to be made.


                                    ARTICLE 8

                                  MISCELLANEOUS

                  SECTION 8.1 CERTAIN DEFINITIONS.  For purposes of this
Agreement:

                           (a) The term "AFFILIATE," as applied to any person,
means any other person directly or indirectly controlling, controlled by, or
under common control with, that person. For the purposes of this definition,
"CONTROL" (including, with correlative meanings, the terms "CONTROLLING,"
"CONTROLLED BY" and "UNDER COMMON CONTROL WITH"), as applied to any person,
means the possession, directly or indirectly, of the power to direct or cause
the direction of the management and policies of that person, whether through the
ownership of voting securities, by contract or otherwise.

                           (b) The term "BUSINESS DAY" means any day, other than
Saturday, Sunday or a federal holiday, and shall consist of the time period from
12:01 a.m. through 12:00 midnight Eastern time. In computing any time period
under this Agreement, the date of the event which begins the running of such
time period shall be included EXCEPT that if such event occurs on other than a
business day such period shall begin to run on and shall include the first
business day thereafter.

                           (c) The term "INCLUDING" means, unless the context
clearly requires otherwise, including but not limited to the things or matters
named or listed after that term.

                           (d) The term "PERSON" shall include individuals,
corporations, limited and general partnerships, trusts, limited liability
companies, associations, joint ventures, Governmental Entities and other
entities and groups (which term shall include a "GROUP" as such term is defined
in Section 13(d)(3) of the Exchange Act).

                           (e) The term "SUBSIDIARY" or "SUBSIDIARIES" means,
with respect to the Parent, the Company or any other person, any entity of which
the Parent, the Company or such other person, as the case may be (either alone
or through or together with any other subsidiary), owns, directly or indirectly,
stock or other equity interests the holders of which are generally entitled to
more than 50% of the vote for the election of the board of directors or other
governing body of such corporation or other legal entity.

                                      64
<PAGE>


                  SECTION 8.2 NON-SURVIVAL OF REPRESENTATIONS, WARRANTIES AND
AGREEMENTS. The representations, warranties and agreements in this Agreement and
in any instrument delivered under this Agreement shall terminate at the
Effective Time or upon the termination of this Agreement under Section 7.1, as
the case may be, except that the agreements set forth in Articles 1 and 2 and
Sections 5.10, 5.12 (last sentence), 5.14, 5.17, 5.18, 5.20 and 5.21 and this
Article 8 shall survive the Effective Time, and those set forth in Sections
5.7(b), 5.16, 5.18, 7.2 and 7.5 and this Article 8 shall survive termination of
this Agreement. Each party agrees that, except for the representations and
warranties contained in this Agreement, the Company Disclosure Letter and the
Parent Disclosure Letter, no party to this Agreement has made any other
representations and warranties, and each party disclaims any other
representations and warranties, made by itself or any of its officers,
directors, employees, agents, financial and legal advisors or other
Representatives with respect to the execution and delivery of this Agreement or
the transactions contemplated by this Agreement, or with respect to its business
or otherwise, notwithstanding the delivery or disclosure to any other party or
any party's representatives of any documentation or other information with
respect to any one or more of the foregoing.

                  SECTION 8.3 COUNTERPARTS. This Agreement may be executed in
any number of counterparts, each such counterpart being deemed to be an original
instrument, and all such counterparts shall together constitute the same
agreement.

                  SECTION 8.4 GOVERNING LAW AND VENUE; WAIVER OF JURY TRIAL.

                           (a) THIS AGREEMENT SHALL BE DEEMED TO BE MADE IN AND
IN ALL RESPECTS SHALL BE INTERPRETED, CONSTRUED AND GOVERNED BY AND IN
ACCORDANCE WITH THE LAW OF THE STATE OF DELAWARE WITHOUT REGARD TO THE CONFLICT
OF LAW PRINCIPLES. The parties irrevocably submit to the jurisdiction of the
courts of the State of Delaware solely in respect of the interpretation and
enforcement of the provisions of this Agreement and of the documents referred to
in this Agreement, and in respect of the transactions contemplated by this
Agreement and by those documents, and hereby waive, and agree not to assert, as
a defense in any action, suit or proceeding for the interpretation or
enforcement of this Agreement or of any such document, that it is not subject to
this Agreement or that such action, suit or proceeding may not be brought or is
not maintainable in said courts or that the venue thereof may not be appropriate
or that this Agreement or any such document may not be enforced in or by such
courts, and the parties hereto irrevocably agree that all claims with respect to
such action or proceeding shall be heard and determined in such a court. The
parties hereby consent to and grant any such court jurisdiction over the person
of such parties and over the subject matter of such dispute and agree that
mailing of process or other papers in connection with any such action or
proceeding in the manner provided in Section 8.5 or in such other manner as may
be permitted by law, shall be valid and sufficient service thereof.

                                      65
<PAGE>


                           (b) EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY
CONTROVERSY WHICH MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO INVOLVE
COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY
IRREVOCABLY AND UNCONDI TIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL
BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARIS ING OUT OF OR
RELATING TO THIS AGREEMENT, OR THE TRANSAC TIONS CONTEMPLATED BY THIS AGREEMENT.
EACH PARTY CERTIFIES AND ACKNOWLEDGES THAT (i) NO REPRESENTATIVE, AGENT OR
ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH
OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING
WAIVER, (ii) EACH SUCH PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF
THIS WAIVER, (iii) EACH SUCH PARTY MAKES THIS WAIVER VOLUNTARILY, AND (iv) EACH
SUCH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS,
THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 8.4.

                  SECTION 8.5 NOTICES. Any notice, request, instruction or other
document to be given hereunder by any party to the others shall be in writing
and delivered personally, sent by reputable overnight courier, sent by
registered or certified mail, postage prepaid, or by facsimile:

                           IF TO THE PARENT OR MERGER SUB:

                           Metromedia Fiber Network, Inc.
                           One North Lexington Avenue
                           White Plains, NY  10601
                           Attention:  Howard Finkelstein
                           Fax:  (914) 421-6777

                           WITH COPIES TO:

                           Metromedia Fiber Network, Inc.
                           c/o Metromedia Company
                           One Meadowlands Plaza
                           East Rutherford, NJ  07073
                           Attention:  Arnold L. Wadler, Esq.
                           Fax:  (201) 531-2803

                           AND

                                      66
<PAGE>


                           Paul, Weiss, Rifkind, Wharton & Garrison
                           1285 Avenue of the Americas
                           New York, New York 10019-6064
                           Attention:  Douglas A. Cifu, Esq.
                           Fax: (212) 757-3990

                           IF TO THE COMPANY:

                           AboveNet Communications Inc.
                           50 W. San Fernando Street, #1010
                           San Jose, CA  95113
                           Attention:  Sherman Tuan
                           Fax:  (408) 367-6688

                           WITH COPIES TO:

                           Skadden, Arps, Slate, Meagher & Flom LLP
                           300 South Grand Avenue
                           Los Angeles, California  90071
                           Attention:  Nicholas P. Saggese, Esq.
                           Fax:  (213) 687-7804

or to such other persons or addresses as may be designated in writing by the
party to receive such notice as provided above.

                  SECTION 8.6 ENTIRE AGREEMENT. This Agreement (including any
exhibits and annexes to this Agreement other than Exhibit D hereto), the Company
Disclosure Letter and the Parent Disclosure Letter constitute the entire
agreement and supersede all other prior agreements, understandings,
representations and warranties, both written and oral, among the parties, with
respect to the subject matter of this Agreement; PROVIDED, THAT, the
Confidentiality Agreement shall remain in full force and effect until the
earlier of the Effective Time, at which time it will terminate, or its
termination in accordance with its terms.

                  SECTION 8.7 NO THIRD PARTY BENEFICIARIES. Except for the
provisions of Section 5.10, this Agreement is not intended to confer upon any
person other than the parties to this Agreement any rights or remedies under
this Agreement.

                  SECTION 8.8 OBLIGATIONS OF THE PARENT AND OF THE COMPANY.
Whenever this Agreement requires a Parent Subsidiary to take any action, that
requirement shall be deemed to include an undertaking on the part of the Parent
to cause that Parent Subsidiary to take that action. Whenever this Agreement
requires a Company Subsidiary to take any action, that requirement shall be
deemed to include an undertaking on the part of the Company to cause that
Company Subsidiary to take that action and, after the Effective Time, on the
part of the Surviving Corporation to cause that Company Subsidiary to take that
action.

                                      67
<PAGE>


                  SECTION 8.9 SEVERABILITY. The provisions of this Agreement
shall be deemed severable and the invalidity or unenforceability of any
provision shall not affect the validity or enforceability or the other
provisions of this Agreement. If any provision of this Agreement, or the
application of that provision to any person or any circumstance, is invalid or
unenforceable, (a) a suitable and equitable provision shall be substituted for
that provision in order to carry out, so far as may be valid and enforceable,
the intent and purpose of the invalid or unenforceable provision and (b) the
remainder of this Agreement and the application of the provision to other
persons or circumstances shall not be affected by such invalidity or
unenforceability, nor shall such invalidity or unenforceability affect the
validity or enforceability of the provision, or the application of that
provision, in any other jurisdiction.

                  SECTION 8.10 INTERPRETATION. The table of contents and
headings in this Agreement are for convenience of reference only, do not
constitute part of this Agreement and shall not be deemed to limit or otherwise
affect any of the provisions of this Agreement. Where a reference in this
Agreement is made to a section, exhibit or annex, that reference shall be to a
section of or exhibit or annex to this Agreement unless otherwise indicated.

                  SECTION 8.11 ASSIGNMENT. This Agreement shall not be
assignable by operation of law or otherwise, except that the Parent may
designate, by written notice to the Company, another Parent Subsidiary that is
wholly owned directly or indirectly by the Parent to be merged with and into the
Company in lieu of Merger Sub, in which event all references in this Agreement
to Merger Sub shall be deemed references to such other Parent Subsidiary, and in
that case, all representations and warranties made in this Agreement with
respect to Merger Sub as of the date of this Agreement shall be deemed
representations and warranties made with respect to such other Parent Subsidiary
as of the date of such designation.

                  SECTION 8.12 SPECIFIC PERFORMANCE. The parties to this
Agreement agree that irreparable damage would occur in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise reached. It is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and provisions of this
Agreement in any court of the United States or any state having jurisdiction,
this being in addition to any other remedy to which they are entitled at law or
in equity.

                                      68
<PAGE>


                  IN WITNESS WHEREOF, this Agreement has been duly executed and
delivered by the duly authorized officers of the parties to this Agreement as of
the date first written above.

                                 ABOVENET COMMUNICATIONS INC.


                                 By:   /s/ Sherman Tuan
                                    ------------------------------------
                                    Name: Sherman Tuan
                                    Title: Chief Executive Officer and Chairman


                                 METROMEDIA FIBER NETWORK, INC.


                                 By:   /s/ Howard Finkelstein
                                    ------------------------------------
                                    Name: Howard Finkelstein
                                    Title: President


                                 MAGELLAN ACQUISITION, INC.


                                 By:   /s/ Howard Finkelstein
                                    ------------------------------------
                                    Name: Howard Finkelstein
                                    Title: President

                                      69



<PAGE>

                                                                    Exhibit 99.2
                                                                  EXECUTION COPY


                                VOTING AGREEMENT


                  VOTING AGREEMENT, dated as of June 22, 1999 (this
"AGREEMENT"), by and among Metromedia Fiber Network, Inc., a Delaware
corporation ("PARENT") and the stockholders of AboveNet Communications Inc., a
Delaware corporation (the "COMPANY") listed on the signature pages hereto (each,
a "SHAREHOLDER" and, collectively, the "SHAREHOLDERS").

                  WHEREAS, the Company and Parent propose to enter into an
Agreement and Plan of Merger, dated as of the date hereof (the "MERGER
AGREEMENT"), which provides for, among other things, the merger of a
wholly-owned subsidiary of Parent with and into the Company (the "MERGER");

                  WHEREAS, as of the date hereof, the Shareholders are holders
of record or Beneficially Own (as defined herein) shares of common stock, par
value $.001 per share, of the Company ("COMPANY COMMON STOCK"); and

                  WHEREAS, as a condition to the willingness of Parent to enter
into the Merger Agreement, Parent has required that each Shareholder agrees, and
in order to induce Parent to enter into the Merger Agreement, each Shareholder
has agreed, severally and not jointly, to enter into this Agreement with respect
to all of the shares of Company Common Stock now held of record or Beneficially
Owned and which may hereafter be acquired by such Shareholder (collectively, the
"SHARES").

                  NOW, THEREFORE, in consideration of the foregoing and the
mutual covenants and agreements contained herein, and intending to be legally
bound hereby, the parties hereto hereby agree as follows:


                                    ARTICLE I

                               CERTAIN DEFINITIONS

                  Section 1.1 GENERAL. Capitalized terms used and not defined
herein have the respective meanings ascribed to them in the Merger Agreement.

                  Section 1.2 BENEFICIAL OWNERSHIP. For purposes of this
Agreement, "BENEFICIALLY OWN" or "BENEFICIAL OWNERSHIP" with respect to any
securities shall mean "beneficial ownership" of such securities (as determined
pursuant to Rule 13d-3 under the Securities Exchange Act of 1934, as amended
(the "EXCHANGE ACT")), including pursuant to any agreement, arrangement or
understanding, whether or not in writing.

                                      2
<PAGE>


                                                ARTICLE II

                  Section 2.1 VOTING AGREEMENT. Each of the Shareholders hereby
agrees as follows:

                           (a) to appear, or cause the holder of record on any
         applicable record date with respect to any Shares Beneficially Owned by
         such Shareholder (the "RECORD HOLDER") to appear, in person or by
         proxy, for the purpose of obtaining a quorum at any annual or special
         meeting of stockholders of the Company and at any adjournment thereof
         at which matters relating to the Merger, Merger Agreement or any
         transaction contemplated thereby are considered; and

                           (b) at any meeting of the stockholders of the
         Company, however called, and in any action by consent of the
         stockholders of the Company, to vote, or cause to be voted by the
         Record Holder, in person or by proxy, the Shares held of record or
         Beneficially Owned by such Shareholder: (i) in favor of the Merger, the
         Merger Agreement (as amended from time to time) and the transactions
         contemplated by the Merger Agreement and (ii) against any proposal for
         any extraordinary corporate transaction, such as a recapitalization,
         dissolution, liquidation, or sale of assets of the Company or any
         merger, consolidation or other business combination (other than the
         Merger) between the Company and any Person (other than Parent or a
         subsidiary of Parent) or any other action or agreement in each case
         that is intended or which reasonably could be expected to (x) result in
         a breach of any covenant, representation or warranty or any other
         obligation or agreement of the Company under the Merger Agreement, (y)
         result in any of the conditions to the Company's obligations under the
         Merger Agreement not being fulfilled or (z) materially impede,
         interfere with, delay, postpone or materially adversely affect the
         Merger and the transactions contemplated by the Merger Agreement.

                  Section 2.2 NO OWNERSHIP INTEREST. Except as set forth in
Section 2.1, nothing contained in this Voting Agreement shall be deemed to vest
in Parent any direct or indirect ownership or incidence of ownership of or with
respect to any Shares. All rights, ownership and economic benefits of and
relating to the Shares shall remain and belong to the Shareholders, and Parent
shall have no authority to manage, direct, restrict, regulate, govern, or
administer any of the policies or operations of the Company or exercise any
power or authority to direct the Shareholders in the voting of any of the Shares
except as otherwise provided herein, or the performance of the Shareholders'
duties or responsibilities as stockholders of the Company.

                                      3
<PAGE>


                  Section 2.3 EVALUATION OF INVESTMENT. Each Shareholder, by
reason of its knowledge and experience in financial and business matters,
believes itself capable of evaluating the merits and risks of the investment in
shares of common stock, par value $.01 per share, of Parent, contemplated by the
Merger Agreement. Each of the Shareholders acknowledges receipt and review of a
copy of the Merger Agreement and Parent's Annual Report on Form 10-K for the
fiscal year ended December 31, 1998, Parent's Proxy Statement dated April 14,
1999, and each report and registration statement filed with the Securities and
Exchange Commission by Parent on Forms 10- Q and 8-K since December 31, 1998.


                                   ARTICLE III

                REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER

                  Each of the Shareholders hereby represents and warrants,
severally and not jointly, to Parent as follows:

                  Section 3.1 AUTHORITY RELATIVE TO THIS AGREEMENT. Such
Shareholder has all necessary power and authority to execute and deliver this
Agreement, to perform its obligations hereunder and to consummate the
transactions contemplated hereby. Where such Shareholder is a corporation,
partnership or other entity, the execution and delivery of this Agreement by
such Shareholder and the consummation by such Shareholder of the transactions
contemplated hereby have been duly and validly authorized by the board of
directors or other governing body of such Shareholder, and no other proceedings
on the part of such Shareholder are necessary to authorize this Agreement or to
consummate such transactions and where such Shareholder is an individual, such
individual has the capacity to enter into this Agreement. This Agreement has
been duly and validly executed and delivered by such Shareholder and, assuming
the due authorization, execution and delivery by the other parties hereto,
constitutes a legal, valid and binding obligation of such Shareholder,
enforceable against such Shareholder in accordance with its terms, except to the
extent enforceability may be limited by bankruptcy, insolvency, moratorium or
other similar laws affecting creditors' rights generally or by general
principles governing the availability of equitable remedies.

                  Section 3.2 NO CONFLICT. (a) The execution and delivery of
this Agreement by such Shareholder does not, and the performance of this
Agreement by such Shareholder shall not, (i) where such Shareholder is a
corporation, partnership or other entity, conflict with or violate the
organizational documents of such Shareholder, (ii) conflict with or violate any
agreement, arrangement, law, rule, regulation, order, judgment or decree to
which such Shareholder is a party or by which such Shareholder (or the Shares
held of record or Beneficially Owned by such Shareholder) is bound or affected
or (iii) result in any breach of or constitute a default (or an event that with
notice or lapse or time or both would become a default) under,

                                      4
<PAGE>


or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in the creation of a lien or encumbrance on any of
the Shares held of record or Beneficially Owned by such Shareholder pursuant to
any note, bond, mortgage, indenture, contract, agreement, lease, license,
permit, franchise or other instrument or obligation to which such Shareholder is
a party or by which such Shareholder (or the Shares held of record or
Beneficially Owned by such Shareholder) is bound or affected, except, in the
case of clauses (ii) and (iii) of this Section 3.2, for any such conflicts,
violations, breaches, defaults or other occurrences which would not prevent the
performance by such Shareholder of its material obligations under this
Agreement.

                           (b) The execution and delivery of this Agreement by
such Shareholder does not, and the performance of this Agreement by such
Shareholder shall not, require any consent, approval, authorization or permit
of, or filing with or notification to, any governmental entity except for
applicable requirements, if any, of federal or state securities and antitrust
laws and except where the failure to obtain such consents, approvals,
authorizations or permits, or to make such filings or notifications, would not
prevent the performance by such Shareholder of its material obligations under
this Agreement.

                  Section 3.3 TITLE TO THE SHARES. As of the date hereof, such
Shareholder is the record or Beneficial Owner of the Shares listed opposite the
name of such Shareholder on such Shareholder's signature page hereto. The Shares
listed opposite the name of such Shareholder on such Shareholder's signature
page hereto are all the securities of the Company either held of record or
Beneficially Owned by such Shareholder. Such Shareholder has not appointed or
granted any proxy, which appointment or grant is still effective, with respect
to the Shares held of record or Beneficially Owned by such Shareholder. The
Shares listed opposite the name of such Shareholder on such Shareholder's
signature page hereto are owned free and clear of all security interests, liens,
claims, pledges, options, rights of first refusal, limitations on such
Shareholder's voting rights, charges and other encumbrances of any nature
whatsoever other than Liens under applicable Law.


                                   ARTICLE IV

                          COVENANTS OF THE SHAREHOLDER

                  Section 4.1 NO INCONSISTENT AGREEMENTS. Each Shareholder
hereby represents, warrants, covenants and agrees that, except as contemplated
by this Agreement and the Merger Agreement, such Shareholder has not and shall
not, and will use its reasonable best efforts to not permit any Person under
such Shareholder's control (including any Record Holder) to, enter into any
voting agreement or grant a proxy or power of attorney with respect to the
Shares held of record or Beneficially

                                      5
<PAGE>


Owned by such Shareholder which, in either case, is inconsistent with this
Agreement.

                  Section 4.2 TRANSFER OF TITLE. Each Shareholder hereby
covenants and agrees that such Shareholder will not, prior to the termination of
this Agreement, either directly or indirectly, offer or otherwise agree to sell,
assign, pledge, hypothecate, transfer, exchange, or dispose of any Shares or
options, warrants or other convertible securities to acquire or purchase Company
Common Stock (collectively "DERIVATIVE SECURITIES") or any other securities or
rights convertible into or exchangeable for shares of Company Common Stock,
owned either directly or indirectly by such Stockholder or with respect to which
such Stockholder has the power of disposition, whether now or hereafter
acquired, without the prior written consent of Parent (provided nothing
contained herein will be deemed to restrict the exercise or conversion of
Derivative Securities outstanding on the date hereof), unless the Person to whom
Shares or Derivative Securities have been sold, assigned, pledged, hypothecated,
transferred, exchanged or disposed agrees to be bound by this Agreement as if a
party hereto. Each Shareholder hereby agrees and consents to the entry of stop
transfer instructions by the Company against the transfer of any Shares
inconsistent with the terms of this Section 4.2.


                                    ARTICLE V

                                  MISCELLANEOUS

                  Section 5.1 NO SOLICITATION. From the date hereof until the
Effective Time or, if earlier, the termination of the Merger Agreement in
accordance with its terms, the Shareholders (a) shall not have, or shall
immediately terminate any discussions with, any third party concerning an
Acquisition Proposal and (b) shall not, and shall not permit any officer,
director, employee, controlled Affiliate, investment banker or other agent (in
such agency capacity), of the Shareholder to, directly or indirectly, (i)
solicit, engage in discussions or negotiate with any Person (whether such
discussions or negotiations are initiated by the Shareholder or otherwise) or
take any other action intended or designed to facilitate the efforts of any
Person, other than Parent, relating to an Acquisition Proposal, (ii) provide
information with respect to the Company or any of its subsidiaries to any
Person, other than Parent, relating to a possible Acquisition Proposal by any
person other than Parent, (iii) enter into an agreement with any person, other
than Parent, providing for a possible Acquisition Proposal, or (iv) make or
authorize any statement, recommendation or solicitation in support of any
possible Acquisition Proposal by any Person, other than by Parent.

                  Section 5.2 TERMINATION. This Agreement shall terminate upon
the earlier to occur of (i) the Effective Time, (ii) the termination of the
Merger Agreement in accordance with its terms or (iii) unless this Agreement is
extended by agreement of each of the parties hereto, December 31, 1999. Upon
such termination,

                                      6
<PAGE>


no party shall have any further obligations or liabilities hereunder; PROVIDED,
HOWEVER, that nothing in this Agreement shall relieve any party from liability
for the breach of any of its representations, warranties, covenants and
agreements set forth in this Agreement prior to such termination.

                  Section 5.3 ADDITIONAL SHARES. If, after the date hereof, a
Shareholder acquires the right to vote any additional shares of Company Common
Stock (any such shares shall be referred to herein as "ADDITIONAL SHARES"),
including, without limitation, upon exercise or conversion of any Derivative
Security or through any stock dividend or stock split, the provisions of this
Agreement applicable to the Shares shall be applicable to such Additional Shares
as if such Additional Shares had been outstanding Shares as of the date hereof.
The provisions of the immediately preceding sentence shall be effective with
respect to Additional Shares without action by any Person immediately upon the
acquisition by a Shareholder of record or Beneficial Ownership of such
Additional Shares.

                  Section 5.4 SPECIFIC PERFORMANCE. The parties hereto agree
that irreparable damage would occur in the event any provision of this Agreement
was not performed in accordance with the terms hereof and that the parties shall
be entitled to specific performance of the terms hereof, in addition to any
other remedy at law or in equity.

                  Section 5.5 ENTIRE AGREEMENT. This Agreement together with the
Affiliate Letters, in the form attached as Exhibit D to the Merger Agreement, if
and to the extent entered into by each Shareholder and Parent, constitutes the
entire agreement between Parent and the Shareholders with respect to the subject
matter hereof and supersedes all prior agreements and understandings, both
written and oral, between Parent and the Shareholders with respect to the
subject matter hereof.

                  Section 5.6 AMENDMENT. This Agreement may not be amended
except by an instrument in writing signed by the parties hereto.

                  Section 5.7 SEVERABILITY. If any term or other provision of
this Agreement is invalid, illegal or incapable of being enforced by any rule or
law, or public policy, all other conditions and provisions of this Agreement
shall nevertheless remain in full force and effect so long as the economic or
legal substance of this Agreement is not affected in any manner materially
adverse to any party. Upon such determination that any term or other provision
is invalid, illegal or incapable of being enforced, the parties hereby shall
negotiate in good faith to modify this Agreement so as to effect the original
intent of the parties as closely as possible to the fullest extent permitted by
applicable law in a mutually acceptable manner in order that the terms of this
Agreement remain as originally contemplated.

                  Section 5.8 NOTICES. All notices and other communications
given or made pursuant hereto shall be in writing and shall be deemed to have
been duly given

                                      7
<PAGE>


or made and shall be effective upon receipt, if delivered personally, upon
receipt of a transmission confirmation if sent by facsimile (with a confirming
copy sent by overnight courier) and on the next business day if sent by Federal
Express, United Parcel Service, Express Mail or other reputable overnight
courier to the parties at the following addresses (or at such other address for
a party as shall be specified by notice):

                  If to a Shareholder to the address set forth on such
Shareholder's signature page hereto.

                  If to Parent, to:

                  c/o Metromedia Fiber Network Services, Inc.
                  1 North Lexington Avenue
                  White Plains, NY  10601
                  Attention:  General Counsel
                  Fax: (914) 421-6777

                  with a copy to:

                  Douglas A. Cifu, Esq.
                  Paul, Weiss, Rifkind, Wharton & Garrison
                  1285 Avenue of the Americas
                  New York, NY 10019
                  Fax:  (212) 757-3990

                  Section 5.9 GOVERNING LAW. This Agreement shall be governed by
and construed in accordance with the laws of the State of Delaware applicable to
agreements made and to be performed entirely within such state without giving
effect to the provisions thereof relating to conflicts of law.

                  Section 5.10 OBLIGATIONS OF SHAREHOLDERS. The obligations of
the Stockholders hereunder shall be "several" and not "joint" or "joint and
several." Without limiting the generality of the foregoing, under no
circumstances will any Stockholder have any liability or obligation with respect
to any misrepresentation or breach of covenant of any other Shareholder.

                  Section 5.11 COUNTERPARTS. This Agreement may be executed in
one or more counterparts, each of which shall be an original and all of which,
when taken together, shall constitute one and the same instrument.

                  Section 5.12 OFFICERS AND DIRECTORS. No person who is or
becomes (during the term of this Agreement) a director or officer of the Company
makes any agreement or understanding herein in his or her capacity as such
director or officer, and nothing herein will limit or affect, or give rise to
any liability to any Shareholder

                                      8
<PAGE>


by virtue of, any actions taken by any Shareholder in his or her capacity as an
officer or director of the Company in exercising its rights under the Merger
Agreement and the transactions contemplated thereby, and no such actions shall
be deemed a breach or default under this Agreement.


















                                      9
<PAGE>


                  IN WITNESS WHEREOF, each of the Shareholders and Parent have
caused this Agreement to be duly executed on the date hereof.


                              METROMEDIA FIBER NETWORK, INC.


                              By:   /s/ Howard Finkelstein
                                 ------------------------------------------
                                 Name: Howard Finkelstein
                                 Title: President











                                      10
<PAGE>


                              KLINE HAWKES CALIFORNIA SBIC, L.P.

                               By: Kline Hawkes California SBIC GP, a limited
                                     partnership, its general partner

                               By: Kline Hawkes Management SBIC, Inc., its
                                     general partner

                              By:   /s/ Frank R. Kline, Jr.
                                 ------------------------------------------
                                 Name: Frank R. Kline, Jr.
                                 Title: Chairman

                              NUMBER OF SHARES:      1,818,460

                             ADDRESS:         11726 San Vincente Blvd., #300
                                              Los Angeles, CA 90049



                               /s/ Frank R. Kline
                            ----------------------------------------------
                            Frank R. Kline


                            NUMBER OF SHARES: 1,818,460

                            ADDRESS:         11726 San Vincente Blvd., #300
                                             Los Angeles, CA 90049

                                      11
<PAGE>


                           TECHGAINS CORP.


                              By:   /s/ Tom Shao
                                 ------------------------------------------
                                 Name: Tom Shao
                                 Title: Managing Director

                           NUMBER OF SHARES:  1,191,690

                           ADDRESS:         2378 W. 239th St.
                                                  Torrance, CA 90501




                           TECHNOLOGY ASSOCIATES MANAGEMENT CO., LTD


                              By:   /s/ Tom Shao
                                 ------------------------------------------
                                 Name: Tom Shao
                                 Title: Managing Director

                           NUMBER OF SHARES:   1,191,690

                           ADDRESS:         2378 W. 239th St.
                                            Torrance, CA 90501



                             /s/ Tom Shao
                           ----------------------------------------------
                           Tom Shao


                           NUMBER OF SHARES: 1,191,690

                           ADDRESS:         2378 W. 239th St.
                                            Torrance, CA 90501

                                      12
<PAGE>


                              /s/ Hui-Tzu Hu
                           ----------------------------------------------
                           Hui-Tzu Hu

                           NUMBER OF SHARES: 1,443,390

                           ADDRESS:         c/o D-Link Corporation
                                            SF No. 233-2 Pro-Chino Rd.
                                            Tsin-Tren
                                            Taipei, Taiwan R.O.C.











                                      13
<PAGE>

                              /s/ Sherman Tuan
                           ----------------------------------------------
                           Sherman Tuan

                           NUMBER OF SHARES:   686,540

                           ADDRESS:      c/o AboveNet Communications Inc.
                                         50 W. San Fernando Street
                                         San Jose, CA  95113











                                      14
<PAGE>

                             /s/ David Rand
                           ----------------------------------------------
                           David Rand

                           NUMBER OF SHARES: 481,934

                           ADDRESS:     c/o AboveNet Communications Inc.
                                        50 W. San Fernando Street
                                        San Jose, CA  95113











                                      15
<PAGE>

                             /s/ Peter C. Chen
                           ----------------------------------------------
                           Peter C. Chen


                            NUMBER OF SHARES: 737,800

                            ADDRESS:     c/o AboveNet Communications Inc.
                                         50 W. San Fernando Street
                                         San Jose, CA  95113











                                      16

<PAGE>


                           ----------------------------------------------
                           Peter C. Chen


                            NUMBER OF SHARES: 737,800

                            ADDRESS:     c/o AboveNet Communications Inc.
                                         50 W. San Fernando Street
                                         San Jose, CA  95113











                                      17

<PAGE>
                                                                    Exhibit 99.3
                                                                  EXECUTION COPY


                                OPTION AGREEMENT


                  THIS OPTION AGREEMENT (the "OPTION AGREEMENT") is entered into
as of June 22, 1999, by and between AboveNet Communications Inc., a Delaware
corporation (the "COMPANY"), and Metromedia Fiber Network, Inc., a Delaware
corporation (the "GRANTEE").

                                    RECITALS

                  WHEREAS, the Grantee, Magellan Acquisition, Inc., a Delaware
corporation and a wholly owned subsidiary of the Grantee ("MERGER SUB"), and the
Company are entering into an Agreement and Plan of Merger dated as of the date
hereof (as amended from time to time, the "MERGER AGREEMENT"), which provides
(subject to the conditions set forth therein) for the merger of Merger Sub with
and into the Company with the Company as the surviving corporation (the
"MERGER"); and

                  WHEREAS, as a condition to the willingness of the Grantee to
enter into the Merger Agreement, the Grantee has required that the Company enter
into, and in order to induce the Grantee to enter into the Merger Agreement, the
Company desires to enter into, this Option Agreement;

                  NOW, THEREFORE, in consideration of the premises and of the
representations, warranties, covenants and agreements contained in this Option
Agreement, the parties to this Option Agreement, intending to be legally bound,
agree as follows:

                        1. CERTAIN DEFINITIONS. Capitalized terms used but not
defined in this Option Agreement shall have the meanings ascribed to such terms
in the Merger Agreement.

                        2. GRANT OF OPTION. Subject to the terms of this Option
Agreement, the Company hereby grants to the Grantee an irrevocable option (the
"OPTION") to purchase, out of the authorized but unissued shares of Company
Common Stock 6,875,560, shares of Company Common Stock (as adjusted as set forth
herein, the "OPTION SHARES") as of the first date, if any, upon which an
Exercise Event (as defined in Section 4(b) of this Option Agreement) occurs, at
a price per Option Share equal to $49.9375 per share (as adjusted as set forth
herein, the "EXERCISE PRICE"). The number of shares of Company Common Stock that
may be received upon exercise of the Option and the Exercise Price are subject
to adjustment as set forth herein.

<PAGE>


                        3. TERM. The Option shall terminate on the earliest of:

                           (a) the Effective Time of the Merger as contemplated
by the Merger Agreement;

                           (b) the termination of the Merger Agreement other
than under circumstances which constitute (or upon satisfaction of the
conditions to payment of the Termination Amount set forth in the proviso of
Section 7.5(b) of the Merger Agreement would constitute) an Exercise Event under
this Agreement; or

                           (c) the occurrence of the date which is twelve (12)
months after termination of the Merger Agreement under circumstances which
constitute, or which, if the conditions to payment of the Termination Amount set
forth in the proviso of Section 7.5(b) of the Merger Agreement were satisfied,
would constitute an Exercise Event under this Agreement (the expiration date of
the Option is referred to herein as the "TERMINATION DATE"); PROVIDED, HOWEVER,
that with respect to clause (c) of this sentence, if the Option cannot be
exercised on such first anniversary by reason of any applicable law, regulation,
order, judgment, decree or other legal impediment, then the Termination Date
shall be extended until the date 10 days after the date on which such impediment
is removed. The rights and obligations set forth in Sections 9 and 10 of this
Option Agreement shall not terminate on the Termination Date, but shall extend
to such time as is provided in those Sections.

                        4. EXERCISE OF OPTION.

                           (a) The Grantee may exercise the Option, in whole or
in part, at any time and from time to time on or before the Termination Date
following the occurrence of an Exercise Event. Notwithstanding the occurrence of
the Termination Date, the Grantee shall be entitled to purchase those Option
Shares with respect to which it has exercised the Option in accordance with the
terms hereof prior to the Termination Date.

                           (b) As used herein, an "EXERCISE EVENT" shall mean
the occurrence of any event as a result of which the Merger Agreement has
terminated and Grantee is entitled to receive the Termination Amount pursuant to
Section 7.5(b) of the Merger Agreement.

                           (c) In the event the Grantee wishes to exercise the
Option with respect to any Option Shares, the Grantee shall send to the Company
a written notice (the date of which being herein referred to as the "NOTICE
DATE") specifying: (i) the number of Option Shares that the Grantee will
purchase; (ii) the place in New York, New York at which such Option Shares are
to be purchased; and (iii) the date on which such Option Shares are to be
purchased, which shall not be earlier than three business days nor later than 20
business days after the Notice Date. The closing of the purchase of such Option

<PAGE>


Shares (the "CLOSING") shall take place at the place specified in such written
notice and on the date specified in such written notice (the "CLOSING DATE");
PROVIDED, HOWEVER, that: (i) if such purchase cannot be consummated by reason of
any applicable law, regulation, order, judgment, decree or other legal
impediment, the Closing Date may be extended by the Grantee to a date not more
than 10 days after the date on which such impediment is removed; and (ii) if
prior notification to or approval of any governmental authority is required (or
if any waiting period must expire or be terminated) in connection with such
purchase, the Grantee shall promptly cause to be filed the required notice or
application for approval and shall expeditiously process the same (and the
Company shall cooperate with the Grantee in the filing of any such notice or
application required to be filed by the Grantee and the obtaining of any such
approval required to be obtained by the Grantee), and the Closing Date may be
extended by the Grantee to a date not more than 10 days after the date on which
any required notification has been made, approval has been obtained or waiting
period has expired or been terminated.

                           (d) Notwithstanding Section 4(c) of this Option
Agreement, so long as the Company shall have complied in all material respects
with all of its obligations under this Option Agreement, no Closing Date shall
be more than 6 months after the related Notice Date, and, if the Closing Date
shall not have occurred within 6 months after the related Notice Date, the
exercise of the Option effected on the Notice Date shall be deemed to have
expired.

                           (e) Notwithstanding anything else herein to the
contrary, any exercise of the Option and any purchase of Option Shares shall be
subject to (x) compliance with applicable laws and regulations, which may, among
other things, prohibit the purchase of all or a portion of the Option Shares
without first obtaining or making certain consents, approvals, orders,
notifications or authorizations, and (y) the absence of any preliminary or
permanent injunction or other order by any court of competent jurisdiction
prohibiting or otherwise restraining such exercise or purchase.

                        5. PAYMENT AND DELIVERY OF CERTIFICATES.

                           (a) On each Closing Date, the Grantee shall pay to
the Company by wire transfer in immediately available funds to a bank account
designated by the Company an amount equal to the Exercise Price multiplied by
the number of Option Shares to be purchased on such Closing Date.

                           (b) At each Closing, simultaneously with the delivery
of immediately available funds as provided in Section 5(a) of this Option
Agreement, the Company shall deliver to the Grantee or its designee a
certificate or certificates representing the Option Shares to be purchased at
such Closing, which Option Shares shall be duly authorized, validly issued,
fully paid and nonassessable and free and clear of all liens, security
interests, charges or other encumbrances (collectively, the "ENCUMBRANCES")
other than Encumbrances under applicable law.

<PAGE>


                           (c) Certificates for the Option Shares delivered at
each Closing shall be endorsed with a restrictive legend (in addition to any
legend required under applicable state securities laws) that shall read
substantially as follows:

         THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
         UNDER EITHER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR ANY
         APPLICABLE STATE LAW GOVERNING THE OFFER OR SALE OF SECURITIES. NO
         TRANSFER OR OTHER DISPOSITION OF THESE SHARES MAY BE MADE EXCEPT
         PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT AND SUCH
         OTHER STATE LAWS OR PURSUANT TO EXEMPTIONS FROM REGISTRATION UNDER THE
         ACT, SUCH OTHER STATE LAWS AND THE RULES AND REGULATIONS PROMULGATED
         THEREUNDER.

         IN ADDITION, THE TRANSFER OF THE SHARES REPRESENTED BY THIS CERTIFICATE
         IS SUBJECT TO RESTRICTIONS ARISING UNDER THE TERMS OF AN OPTION
         AGREEMENT DATED AS OF JUNE 22, 1999. A COPY OF SUCH AGREEMENT WILL BE
         PROVIDED TO THE HOLDER HEREOF WITHOUT CHARGE UPON RECEIPT BY THE
         COMPANY OF A WRITTEN REQUEST THEREFOR.

A new certificate or certificates evidencing the same number of shares of
Company Common Stock will be issued to the Grantee in lieu of the certificate
bearing the above legend, and such new certificate shall not bear the first
paragraph of such legend, insofar as it applies to the Securities Act, if the
Grantee shall have delivered to the Company a copy of a letter from the Staff of
the SEC, or an opinion of counsel in form and substance reasonably satisfactory
to the Company and its counsel, to the effect that such legend is not required
for purposes of the Securities Act.

                        6. ADJUSTMENT UPON CHANGES IN CAPITALIZATION, ETC.

                           (a) In the event of any change in the Company Common
Stock issued and outstanding by reason of a distribution, reclassification stock
dividend, split-up (including a reverse stock split), combination,
recapitalization, exchange of shares or similar transaction, the type and number
of shares or securities subject to the Option, and the Exercise Price therefor,
shall be adjusted appropriately, and proper provision shall be made in the
agreements governing such transaction so that the Grantee shall receive upon
exercise of the Option the same class and number of outstanding shares or other
securities or property that Grantee would have received upon exercise of the
Option if the Option had been exercised immediately prior to such event or the
record date therefor, as applicable. Without limiting the parties' relative
rights and obligations under the Merger Agreement, if any additional shares of
Company Common Stock are issued after the date of this Option Agreement (other
than pursuant to an event described in the first sentence

<PAGE>


of this Section 6(a)), the number of shares of Company Common Stock then
remaining subject to the Option shall be adjusted so that, after such issuance
of additional shares, such number of shares then remaining subject to the
Option, together with any shares theretofore issued pursuant to the Option,
equals 19.9% of the number of shares of Company Common Stock then issued and
outstanding.

                           (b) Without limiting the parties' relative rights and
obligations under the Merger Agreement, if the Company shall enter into an
agreement (i) to consolidate, exchange, shares or merge with any person (as
defined in the Merger Agreement), other than the Grantee or one of the Grantee's
subsidiaries, and, in the case of a merger, shall not be the continuing or
surviving corporation, (ii) to permit any person, other than the Grantee or one
of the Grantee's subsidiaries, to merge into the Company and the Company shall
be the continuing or surviving corporation, but, in connection with such merger,
the then outstanding shares of Company Common Stock shall be changed into or
exchanged for stock or other securities of the Company or any other person or
cash or any other property, or the shares of Company Common Stock outstanding
immediately before such merger shall after such merger represent less than 50%
of the common shares and common share equivalents of the Company outstanding
immediately after the merger, or (iii) to sell, lease or otherwise transfer all
or substantially all of its assets to any Person, other than the Grantee or one
of the Grantee's subsidiaries, then, and in each such case, proper provision
shall be made in the agreement governing such transactions so that the Option
shall, upon the consummation of any such transaction and upon the terms and
conditions set forth herein, become exercisable for the stock, securities, cash
or other property that would have been received by the Grantee upon exercise of
the Option if the Grantee had exercised this Option immediately prior to such
transaction or the record date for determining the stockholders entitled to
participate therein, as appropriate.

                           (c) The provisions of Sections 7, 9 and 10 of this
Option Agreement shall apply with appropriate adjustments to any securities for
which the Option becomes exercisable pursuant to this Section 6.

                        7. REPURCHASE OPTIONS.

                           (a) At any time on or prior to the Termination Date,
at the request of the Grantee made at any time after the first Exercise Event
and ending on the first anniversary thereof (the "PUT PERIOD"), the Company (or
any successor thereto) shall repurchase from the Grantee that portion of the
Option that then remains unexercised. The date on which the Grantee exercises
its rights under this Section 7 is referred to as the "GRANTEE REQUEST DATE."
Such repurchase shall be at an aggregate price (the "REPURCHASE CONSIDERATION")
equal to the excess, if any, of (x) the Applicable Price for each share of
Company Common Stock that remains subject to the Option over (y) the Exercise
Price (subject to adjustment pursuant to Section 6 of this Option Agreement),
multiplied by the number of Option Shares as to which the Option

<PAGE>


has not been exercised, except that in no event shall the Company be required to
pay to the Grantee pursuant to this Section 7(a) an amount exceeding the product
of (x) $1.00 and (y) such number of shares of Company Common Stock that remain
subject to the Option.

                           (b) If the Grantee exercises its rights under this
Section 7, the Company shall, within five business days after the Grantee
Request Date, pay the Repurchase Consideration to the Grantee by wire transfer
in immediately available funds, and the Grantee shall surrender to the Company
the Option.

                           (c) For purposes of this Option Agreement, the
"APPLICABLE PRICE" means the average closing sales price per share of Company
Common Stock as quoted on NASDAQ/NMS (or if Company Common Stock is not quoted
on NASDAQ/NMS, the average closing sales price per share as quoted on any other
market comprising a part of NASDAQ/NMS or, if the shares of Company Common Stock
are not quoted thereon, on the principal trading market (as defined in
Regulation M under the Exchange Act) on which such shares are traded as reported
by The Wall Street Journal (Northeast edition) or, if not reported thereby, any
other authoritative source) during the 20 trading days preceding the Grantee
Request Date.

                           (d) Notwithstanding anything else herein to the
contrary, any exercise by the Grantee of its rights under this Section 7 and any
compliance by the Company with its repurchase obligations hereunder shall be
subject to (x) compliance with applicable laws and regulations, which may, among
other things, prohibit such exercise or such repurchase of all or a portion of
the Option without first obtaining or making certain consents, approvals,
orders, notifications or authorizations, and (y) the absence of any preliminary
or permanent injunction or other order by any court of competent jurisdiction
prohibiting or otherwise restraining such exercise or repurchase.

                           (e) In the event that the Grantee notifies the
Company of its intention to exercise the Option pursuant to Section 4 hereof,
the Company may require the Grantee, upon the delivery to Grantee of written
notice during the period beginning on the Notice Date and ending one day prior
to the applicable Closing Date, to sell to the Company the Option Shares
acquired by the Grantee pursuant to such exercise of the Option at a purchase
price per share for such sale equal to the Exercise Price plus $1.00. The
closing of any repurchase of Option Shares pursuant to this Section 7(e) shall
take place immediately following the consummation of the sale of the Option
Shares to the Grantee on the applicable Closing Date at the time and location
agreed upon for such Closing Date.

                        8. REPRESENTATIONS AND WARRANTIES.

                           (a) The Company hereby represents and warrants to the
Grantee that the Company has taken all necessary action to authorize and reserve
for

<PAGE>


issuance and subject to applicable law to permit it to issue, and at all times
from the date of this Option Agreement through the Termination Date will have
reserved for issuance upon exercise of the Option, a sufficient number of
authorized shares of Company Common Stock for issuance upon exercise of the
Option, each of which, upon issuance pursuant to this Option Agreement and when
paid for as provided herein, will be validly issued, fully paid and
nonassessable, and shall be delivered free and clear of all Encumbrances other
than Encumbrances under applicable law.

                           (b) The Grantee hereby represents and warrants to the
Company that the Grantee is acquiring the Option and it will acquire the Option
Shares issuable upon the exercise thereof for its own account and not with a
view to the distribution or resale thereof in any manner not in accordance with
applicable law. Neither the Option nor any of the Option Shares will be offered
sold, pledged, or otherwise transferred except in compliance with, or pursuant
to an exemption from, the registration requirements of the Securities Act, and
in compliance with the terms of this Option Agreement.

                        9. REGISTRATION RIGHTS.

                           (a) The Company shall, if requested by the Grantee at
any time and from time to time within two years of the first exercise of the
Option (the "REGISTRATION PERIOD"), as expeditiously as reasonably practicable,
prepare, file and cause to be made effective up to two registration statements
under the Securities Act in order to permit the offering, sale and delivery or
other disposition of any or all shares of Company Common Stock or other
securities, as appropriate, that have been acquired by or are issuable to the
Grantee upon exercise of the Option pursuant to a bona fide firm commitment
underwritten public offering in which the Grantee and the underwriters shall
effect as wide a distribution of such shares as is reasonably practicable and
the Company shall use all reasonable commercial efforts to qualify such shares
or other securities under any applicable state securities or "blue sky" laws
(except that the Company shall not be required to qualify to do business in, or
consent to general service of process in, any jurisdiction by reason of this
provision); PROVIDED, HOWEVER, that any such registration request must relate to
a number of shares of Company Common Stock equal to at least 25% of the total
Option Shares and that any rights to require registration hereunder shall
terminate with respect to any Shares that may be sold pursuant to rule 144(k)
under the Securities Act. Without the Grantee's prior written consent, no other
securities may be included in any such registration. The Company shall use all
reasonable commercial efforts to cause each such registration statement to
become effective, to obtain all consents or waivers of other parties that are
required therefor and to keep such registration effective for such period not in
excess of 120 days from the day such registration statement first becomes
effective as may be as reasonably necessary to effect such sale or other
disposition. The obligations of the Company hereunder to file a registration
statement and to maintain its effectiveness may be suspended for one or more
periods of time not exceeding 90 days in the aggregate if the Board of Directors
of the

<PAGE>


Company shall have determined in good faith that the filing of such registration
or the maintenance of its effectiveness would require disclosure of nonpublic
information that would be materially detrimental to the Company, or the Company
is required under the Securities Act to include audited financial statements for
any period in such registration statement and such financial statements are not
yet available for inclusion in such registration statement, or the Company
determines, in its reasonable judgment, that such registration would interfere
in any material respect with any financing, acquisition or other material
transaction involving the Company. For purposes of determining whether two
requests have been made under this Section 9, only requests relating to a
registration statement that has become effective under the Securities Act and
pursuant to which the Grantee has disposed of at least 50% of the shares covered
thereby in the manner contemplated therein shall be counted.

                           (b) All fees and expenses associated with the
preparation and filing of any such registration statement pursuant to this
Section 9 and any sale covered thereby (including any fees related to blue sky
qualifications and filing fees in respect of the National Association of
Securities Dealers, Inc.) ("REGISTRATION EXPENSES"), shall be for the account of
the Company except for underwriting discounts or commissions or brokers' fees in
respect to shares to be sold by the Grantee and the fees and expenses of
Grantee's counsel; PROVIDED, HOWEVER, that the Company shall not be required to
pay for any Registration Expenses with respect to such registration if the
registration request is subsequently withdrawn at the request of the Grantee
unless the Grantee agrees to forfeit its right to request one registration; AND
PROVIDED FURTHER that, if at the time of such withdrawal the Grantee has learned
of a material adverse change in the results of operations, condition (financial
or other), business or prospects of the Company from that known to the Grantee
at the time of its request and has withdrawn the request with reasonable
promptness following disclosure by the Company of such material adverse change,
then the Grantee shall not be required to pay any of such expenses and shall
retain all remaining rights to request registration.

                           (c) All of the Grantee's rights under this Section 9
are subject to the condition that the Grantee shall provide all information
reasonably requested by the Company for inclusion in any registration statement
to be filed hereunder. If during the Registration Period the Company shall
propose to register under the Securities Act the offering, sale and delivery or
other disposition of Company Common Stock for cash for its own account or for
the account of any other stockholder of the Company pursuant to a firm
underwriting, it shall, in addition to the Company's other obligations under
this Section 9, allow the Grantee the right to participate in such registration
provided that the Grantee participates in the underwriting; PROVIDED, HOWEVER,
that, if the managing underwriter of such offering advises the Company in
writing that in its opinion the number of shares of Company Common Stock or
other securities, as appropriate, requested to be included in such registration
exceeds the number that can be sold in such offering, the Company shall include
in such registration, to the extent of the number of shares which the Company is
so advised can be sold in (or during the time of) such

<PAGE>


offering, FIRST, all securities proposed to be sold by the Company for its own
account, or, in the case of a secondary offering made pursuant to demand
registration rights granted to any person other than the Company, all shares
intended to be included therein by such person; SECOND all securities, if any,
proposed by the Company to be sold for the account of certain holders of shares
of Company Common Stock pursuant to the exercise of their piggyback registration
rights under agreements or other arrangements in effect on the date hereof;
THIRD, all shares or securities requested to be included in such registration by
Grantee under this Agreement; and FOURTH, all securities of the Company to be
sold for the account of any other person. In connection with any offering, sale
and delivery or other disposition of Company Common Stock pursuant to a
registration statement effected pursuant to this Section 9, the Company and the
Grantee shall provide each other and each underwriter of the offering with
customary representations, warranties and covenants, including covenants of
indemnification and contribution.

                        10. PROFIT LIMITATION. Notwithstanding any provision to
the contrary contained in this Option Agreement or the Merger Agreement, the
Grantee may not exercise its rights pursuant to this Option Agreement or Section
7.5(b) of the Merger Agreement in a manner that would result in a cash payment
to the Grantee of an aggregate amount under this Option Agreement (the "Option
Buyout Amount") and under Section 7.5(b) of the Merger Agreement of more than
the sum of (a) the aggregate Exercise Price paid by the Grantee for any Option
Shares as to which the Option has theretofore been exercised, plus (b)
$50,000,000. To the extent that any amount is paid by the Company to the Grantee
pursuant to this Option Agreement or Section 7.5(b) of the Merger Agreement, the
Termination Amount payable pursuant to Section 7.5(b) of the Merger Agreement or
the Option Buyout Amount shall be reduced appropriately so that the aggregate
amount payable by the Company under this Option Agreement and Section 7.5(b) of
the Merger Agreement (exclusive of Parent Expenses) shall not exceed such sum.

                        11. LISTING. If at the time of the occurrence of an
Exercise Event the Company Common Stock is (or any other securities subject to
the Option are) then listed on NASDAQ/NMS or on any other market or exchange,
the Company, upon the occurrence of an Exercise Event, shall promptly file an
application to list on NASDAQ/NMS and if not then listed on NASDAQ/NMS on such
other market or exchange the shares of the Company Common Stock or other
securities then subject to the Option, and shall use all reasonable efforts to
cause such listing application to be approved as promptly as practicable.

                        12. REPLACEMENT OF AGREEMENT. Upon receipt by the
Company of evidence reasonably satisfactory to it of the loss, theft,
destruction or mutilation of this Option Agreement, and (in the case of loss,
theft or destruction) of reasonably satisfactory indemnification, and upon
surrender and cancellation of this Option Agreement, if mutilated, the Company
will execute and deliver a new Option Agreement of like tenor and date.

<PAGE>


                        13. TRANSFERS.

                            The Option Shares may not be sold, assigned,
transferred or otherwise disposed of except pursuant to (i) Section 7(e) hereof,
(ii) in an underwritten offering pursuant to Section 8 hereof, or (iii) to any
purchaser or transferee who would not, to the knowledge of the Grantee, after
due inquiry, immediately following such sale, assignment, transfer or disposal
beneficially own more than 4.9% of the then-outstanding voting power of the
Company, except that the Grantee shall be permitted to sell any Option Shares if
such sale is made pursuant to a tender or exchange offer that has been approved
or recommended by a majority of the members of the Company's board of directors
(which majority shall include a majority of directors who were directors on the
date hereof).

                        14. MISCELLANEOUS.

                           (a) EXTENSION; WAIVER. At any time prior to the
Termination Date, the parties hereto may (i) extend the time for the performance
of any of the obligations or other acts of the other parties hereto, or (ii)
waive compliance with any of the agreements or conditions contained herein. Any
agreement on the part of any party to any such extension or waiver shall be
valid only if set forth in an instrument in writing signed on behalf of such
party. Except as provided in this Option Agreement, no action taken pursuant to
this Option Agreement shall be deemed to constitute a waiver by the party taking
such action of compliance with any covenants or agreements contained in this
Option Agreement. The waiver by any party hereto of a breach of any provision
hereunder shall not operate or be construed as a waiver of any prior or
subsequent breach of the same or any other provision hereunder.

                           (b) AMENDMENT AND MODIFICATION. Subject to applicable
law, this Option Agreement may be amended, modified and supplemented, or
provisions hereof waived, in writing by the parties hereto in any and all
respects before the Termination Date, by action taken by the respective Boards
of Directors of the Company or the Grantee or by the respective officers
authorized by such Boards of Directors. This Option Agreement may not be amended
except by an instrument in writing signed on behalf of each of the parties
hereto.

                           (c) FURTHER ACTIONS. Each of the parties hereto
agrees that, subject to its legal obligations, it will use its reasonable
efforts to do all things reasonably necessary to consummate the transactions
contemplated hereby.

                           (d) NON-EXCLUSIVITY. The rights and remedies of the
Grantee under this Option Agreement are not exclusive of or limited by any other
rights or remedies which it may have, whether at law, in equity, by contract or
otherwise, all of which shall be cumulative (and not alternative). Without
limiting the generality of the foregoing, the rights, remedies, obligations and
liabilities of each of the Grantee and the

<PAGE>


Company under this Option Agreement, are in addition to their respective rights,
remedies, obligations and liabilities under common law requirements and under
all applicable statutes, rules and regulations. The covenants and obligations of
the Company set forth in this Option Agreement shall be construed as independent
of any other agreement or arrangement between the Company, on the one hand, and
the Grantee, on the other. The existence of any claim or cause of action by the
Company against the Grantee shall not constitute a defense to the enforcement of
any of such covenants or obligations against the Company.

                           (e) COUNTERPARTS. This Option Agreement may be
executed in any number of counterparts, each such counterpart being deemed to be
an original instrument, and all such counterparts shall together constitute the
same agreement.

                           (f) GOVERNING LAW AND VENUE; WAIVER OF JURY TRIAL.

                               (i) THIS OPTION AGREEMENT SHALL BE DEEMED TO BE
MADE IN AND IN ALL RESPECTS SHALL BE INTERPRETED, CONSTRUED AND GOVERNED BY AND
IN ACCORDANCE WITH THE LAW OF THE STATE OF DELAWARE WITHOUT REGARD TO THE
CONFLICT OF LAW PRINCIPLES. The parties irrevocably submit to the jurisdiction
of the courts of the State of Delaware solely in respect of the interpretation
and enforcement of the provisions of this Option Agreement and of the documents
referred to in this Option Agreement, and in respect of the transactions
contemplated by this Option Agreement and by those documents, and hereby waive,
and agree not to assert, as a defense in any action, suit or proceeding for the
interpretation or enforcement of this Option Agreement or of any such document,
that it is not subject to this Option Agreement or that such action, suit or
proceeding may not be brought or is not maintainable in said courts or that the
venue thereof may not be appropriate or that this Option Agreement or any such
document may not be enforced in or by such courts, and the parties hereto
irrevocably agree that all claims with respect to such action or proceeding
shall be heard and determined in such a court. The parties hereby consent to and
grant any such court jurisdiction over the person of such parties and over the
subject matter of such dispute and agree that mailing of process or other papers
in connection with any such action or proceeding in the manner provided in
Section 14(g) or in such other manner as may be permitted by law, shall be valid
and sufficient service thereof.

                               (ii) EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY
CONTROVERSY WHICH MAY ARISE UNDER THIS OPTION AGREEMENT IS LIKELY TO INVOLVE
COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY
IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL
BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF OR
RELATING TO THIS OPTION

<PAGE>


AGREEMENT, OR THE TRANSACTIONS CONTEMPLATED BY THIS OPTION AGREEMENT. EACH PARTY
CERTIFIES AND ACKNOWLEDGES THAT (i) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY
OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD
NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER, (ii) EACH
SUCH PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER, (iii)
EACH SUCH PARTY HAS BEEN INDUCED TO ENTER INTO THIS OPTION AGREEMENT BY, AMONG
OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 14(f).

                           (g) NOTICES. Any notice, request, instruction or
other document to be given hereunder by any party to the others shall be in
writing and delivered personally, sent by reputable overnight courier, sent by
registered or certified mail, postage prepaid, or by facsimile.

                  IF TO THE GRANTEE:

                  Metromedia Fiber Network, Inc.
                  1 North Lexington Avenue
                  White Plains, NY  10601
                  Attention:  Howard Finkelstein
                  Fax:  (914) 421-6777

                  WITH COPIES TO:

                  Metromedia Company
                  One Meadowlands Plaza
                  East Rutherford, NJ  07073-2137
                  Attention:  Arnold L. Wadler, Esq.
                  Fax:  (201) 531-2803

                  Paul, Weiss, Rifkind, Wharton & Garrison
                  1285 Avenue of the Americas
                  New York, New York  10019-6064
                  Attention:  Douglas A. Cifu, Esq.
                  Fax:  (212) 757-3990

<PAGE>


                  IF TO THE COMPANY:

                  AboveNet Communications Inc.
                  50 W. San Fernando Street, Suite #1010
                  San Jose, CA  95113
                  Attention: Sherman Tuan
                  Fax: (408) 367-6800


                  WITH COPIES TO:

                  Skadden, Arps, Slate, Meagher & Flom LLP
                  300 South Grand Avenue
                  Los Angeles, California  90071
                  Attention:  Nicholas P. Saggese, Esq.
                  Fax:  213-687-7804

or to such other persons or addresses as may be designated in writing by the
party to receive such notice as provided above.

                           (h) ENTIRE AGREEMENT. This Option Agreement, the
Merger Agreement (including the documents and instruments attached thereto as
exhibits or schedules or delivered in connection therewith other than Exhibit
D), the Confidentiality Agreement and the other documents referred to herein or
delivered pursuant hereto collectively constitute the entire agreement and
supersede all other prior agreements, understandings, representations and
warranties, both written and oral, among the parties, with respect to the
subject matter of this Option Agreement.

                           (i) NO THIRD PARTY BENEFICIARIES. This Option
Agreement is not intended to confer upon any person other than the parties to
this Option Agreement any rights or remedies under this Option Agreement.

                           (j) SEVERABILITY. The provisions of this Option
Agreement shall be deemed severable and the invalidity or unenforceability of
any provision shall not affect the validity or enforceability or the other
provisions of this Option Agreement. If any provision of this Option Agreement,
or the application of that provision to any person or any circumstance, is
invalid or unenforceable, (i) a suitable and equitable provision shall be
substituted for that provision in order to carry out, so far as may be valid and
enforceable, the intent and purpose of the invalid or unenforceable provision
and (ii) the remainder of this Option Agreement and the application of the
provision to other persons or circumstances shall not be affect by such
invalidity or unenforceability, nor shall such invalidity or unenforceability
affect the validity or enforceability of the provision, or the application of
that provision, in any other jurisdiction.

<PAGE>


                           (k) INTERPRETATION. The headings in this Option
Agreement are for convenience of reference only, do not constitute part of this
Option Agreement and shall not be deemed to limit or otherwise affect any of the
provisions of this Option Agreement. Where a reference in this Option Agreement
is made to a Section, that reference shall be to a section of this Option
Agreement unless otherwise indicated. Wherever the words "include," "includes"
or "including" are used in this Option Agreement, they shall be deemed to be
followed by the words "without limitation."

                           (l) ASSIGNMENT. This Option Agreement and the Option
shall not be assignable or delegated in whole or in part by operation of law or
otherwise. Any assignment, transfer or delegation shall be null and void.

                           (m) SPECIFIC PERFORMANCE. The parties to this Option
Agreement agree that irreparable damage would occur in the event that any of the
provisions of this Option Agreement were nor performed in accordance with their
specific terms or were otherwise reached. It is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches of
this Option Agreement and to enforce specifically the terms and provisions of
this Option Agreement in any court of the United States or any state court in
each case in the State of Delaware, this being in addition to any other remedy
to which they are entitled at law or in equity.

<PAGE>


                  IN WITNESS WHEREOF, the Company and the Grantee have caused
this Option Agreement to be signed by their respective officers thereupon duly
authorized, all as of the day and year first written above.


                                 ABOVENET COMMUNICATIONS INC.


                                 By:   /s/ Sherman Tuan
                                    ------------------------------------
                                    Name: Sherman Tuan
                                    Title: Chief Executive Officer and Chairman


                                 METROMEDIA FIBER NETWORK, INC.


                                 By:    /s/ Howard Finkelstein
                                    ------------------------------------
                                    Name: Howard Finkelstein
                                    Title: President



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