Document:

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                                                                    EXHIBIT 10.2
                                                                    ------------

                              RETENTION AGREEMENT
                              -------------------

    THIS RETENTION AGREEMENT ("Agreement") by and between NaviSite, a Delaware
corporation with principal executive offices located at 400 Minuteman Rd.,
Andover, MA  01810 (the "Company"), and _________________ (the "Executive"), is
made as of October 17, 2001 ("Effective Date").

    WHEREAS, the Board of Directors of the Company (the "Board") has determined
that the Executive will play a critical role in the operations of the Company;
and

    WHEREAS, the Board has determined that appropriate steps should be taken to
reinforce and encourage the continued employment and dedication of the
Executive;

    NOW, THEREFORE, as an inducement for and in consideration of the Executive
remaining in its employ, the Company agrees that the Executive shall receive the
benefits set forth in this Agreement in the circumstances described below.

1.  Not A Guarantee of Employment.  The Executive acknowledges that this
    -----------------------------
Agreement does not constitute a guarantee of employment or impose on the Company
any obligation to retain the Executive as an employee and that this Agreement
does not prevent the Executive from terminating his employment.  The Executive
understands and acknowledges that he is an employee at will and that either he
or the Company may terminate the employment relationship between them at any
time and for any lawful reason.

2.  Severance Pay under Certain Circumstances.  In the event the employment of
    -----------------------------------------
the Executive is terminated (i) by the Company for a reason other than for Cause
(as defined below) or (ii) by the Executive for Good Reason (as defined below),
then the Executive shall be eligible for severance pay in accordance with the
terms set forth herein. Such severance pay shall amount to the equivalent of
______ (__) months' base wages, less applicable taxes and withholding, and shall
be paid in a lump sum on the date of such termination described in (i) or (ii)
above.

3.  Sole Remedy.  The payment to the Executive of the amounts payable under
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Section 2 along with payment of any accrued but unused vacation pay shall
constitute the sole remedy of the Executive in the event of a termination of the
Executive's employment with the Company following a Change of Control.

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4.  Definitions.  For purposes of this Agreement, the following terms shall
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have the following meanings:

(a)  "Cause" shall mean a good faith finding by the Company of: (i) gross
     negligence or willful misconduct by the Executive in connection with the
     Executive's employment duties, (ii)  failure by the Executive to
     substantially perform his duties or responsibilities required pursuant to
     the Executive's employment after written notice and a 30-day opportunity to
     cure, (iii)  misappropriation by the Executive for the Executive's personal
     use of the assets or business opportunities of the Company, or its
     affiliates, (iv) embezzlement or other financial fraud committed by the
     Executive, (v) the Executive knowingly allowing any third party to commit
     any of the acts described in any of the preceding clauses (iii) or (iv), or
     (vi) the Executive's indictment for, conviction of, or entry of a plea of
     no contest with respect to, any felony.

(b)  "Change in Control" shall mean the consummation of any of the following
     events:  (i) a sale, lease or disposition of all or substantially all of
     the assets of the Company, or (ii) a merger or consolidation (in a single
     transaction or a series of related transactions) of the Company with or
     into any other corporation or corporations or other entity, or any other
     corporate reorganization, where the stockholders of the Company immediately
     prior to such event do not retain (in substantially the same percentages)
     beneficial ownership, directly or indirectly, of more than fifty percent
     (50%) of the voting power of and interest in the successor entity or the
     entity that controls the successor entity; provided, however, that a
     "Change in Control" shall not include a sale, lease, transfer or other
     disposition of all or substantially all of the capital stock, assets,
     properties or business of the Company (by way of merger, consolidation,
     reorganization, recapitalization, sale of assets, stock purchase,
     contribution or other similar transaction) that involves the Company, on
     the one hand, and CMGI, Inc. or any CMGI Subsidiary (as defined herein), on
     the other hand.

(c)  "CMGI Subsidiary" shall mean any corporation or other entity that is
     controlled, directly or indirectly, by CMGI, Inc.

(d)  "Good Reason" shall mean the occurrence of any of the following conditions
     without the Executive's consent, which condition continues after notice by
     the Executive to the Company and a reasonable opportunity to cure such
     condition: (i) a decrease in the Executive's base salary, (ii) relocation
     of the Executive's work place to a location more than 60 miles from the
     Executive's business location at the time of the Change of Control, or
     (iii) the Executive's assignment to a position where the duties of the
     position are outside his area of professional competence or, following the
     event of a Change of Control, (iv) a substantial and material diminution of
     Employee's position or duties as they existed as of the Effective Date of
     this Agreement.

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5.   Miscellaneous.
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(a)  Notices.  Any notice delivered under this Agreement shall be deemed duly
     delivered four business days after it is sent by registered or certified
     mail, return receipt requested, postage prepaid, or one business day after
     it is sent for next-business day delivery via a reputable nationwide
     overnight courier service, in each case to the address of the recipient set
     forth in the introductory paragraph hereto.  Either party may change the
     address to which notices are to be delivered by giving notice of such
     change to the other party.

(b)  Pronouns.  Whenever the context may require, any pronouns used in this
     Agreement shall include the corresponding masculine, feminine or neuter
     forms, and the singular forms of nouns and pronouns shall include the
     plural, and vice versa.

(c)  Entire Agreement.  This Agreement constitutes the entire agreement between
     the parties and supersedes all prior agreements and understandings, whether
     written or oral, relating to the subject matter of this Agreement.

(d)  Amendment.  This Agreement may be amended or modified only by a written
     instrument executed by both the Company and the Executive.

(e)  Governing Law.  This Agreement shall be governed by and construed in
     accordance with the laws of the Commonwealth of Massachusetts.

(f)  Successors and Assigns.  This Agreement shall be binding upon and inure to
     the benefit of both parties and their respective successors and assigns,
     including any corporation with which or into which the Company may be
     merged or which may succeed to its assets or business, provided, however,
     that the obligations of the Executive are personal and shall not be
     assigned by him.

(g)  Waivers.  No delay or omission by the Company in exercising any right under
     this Agreement shall operate as a waiver of that or any other right.  A
     waiver or consent given by the Company on any one occasion shall be
     effective only in that instance and shall not be construed as a bar or
     waiver of any right on any other occasion.

(h)  Captions.  The captions of the sections of this Agreement are for
     convenience of reference only and in no way define, limit or affect the
     scope or substance of any section of this Agreement.

(i)  Severability.  In case any provision of this Agreement shall be invalid,
     illegal or otherwise unenforceable, the validity, legality and
     enforceability of the remaining provisions shall in no way be affected or
     impaired thereby.

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 THE EXECUTIVE ACKNOWLEDGES THAT HE HAS CAREFULLY READ THIS AGREEMENT AND
UNDERSTANDS AND AGREES TO ALL OF THE PROVISIONS IN THIS AGREEMENT.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year set forth above.

                                        NAVISITE, INC.

                                        By:_______________________________

                                        Title:____________________________

                                        EXECUTIVE

                                        __________________________________

                                       4<PAGE>
                                                                    EXHIBIT 10.3
                                                                    ------------

                                                    November 8, 2001

Compaq Computer Corporation
20555 State Highway 249
Houston, TX 77070

Compaq Financial Services Corporation
Compaq Financial Services Canada Corporation
Compaq Financial Services Company
c/o Compaq Financial Services Corporation
20555 State Highway 249
Houston, TX 77070

NaviSite, Inc.
400 Minuteman Road
Andover, MA 01810

AltaVista Company
1070 Arastradero Road
Palo Alto, CA 94304

         Re:   Amendment to Transaction Agreement

Ladies and Gentlemen:

          Reference is made to the Transaction Agreement dated as of October 29,
2001 (the "Transaction Agreement") among the parties hereto. The parties hereby
amend the Transaction Agreement as follows:

          1.   The definition of "AV Convertible Demand Note" in Section 1.01 of
the Transaction Agreement is hereby deleted in its entirety and replaced with
the following definition:

          "AV Convertible Demand Note" means the Convertible Demand Note of AV
dated July 11, 2000 in the principal amount of $2,589,752."

          2.   Section 3.01(iii) of the Transaction Agreement is hereby deleted
in its entirety and replaced with the following:

          "(iii) CMGI shall convert the NaviSite Convertible Subordinated Notes
(in accordance with their terms) and all intercompany indebtedness owed to it by
NaviSite on the Closing Date, in each case together with any and all accrued but
unpaid interest thereon (such principal and interest totaling in the aggregate
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$97,708,570 as of October 29, 2001), into an aggregate of 24,629,900 shares of
NaviSite Common Stock."

          3.   Section 4.01(iv) of the Transaction Agreement is hereby deleted
in its entirety and replaced with the following:

          "(iv) Compaq shall convert the AV Convertible Demand Note, together
with any and all accrued but unpaid interest thereon into 215,250 shares of AV
Common Stock (the "AV Shares"), and AV shall issue and deliver a certificate for
the AV Shares to Compaq."

          4.   This side letter shall be governed by and construed in accordance
with the law of the State of New York, without regard to the conflicts of law
rules of such state. This side letter may be signed in any number of
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument. This side letter
shall become effective when all parties hereto shall have received a counterpart
hereof signed by all other parties hereto.

          5.   Except as expressly amended hereby, the Transaction Agreement
shall remain in full force and effect.

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          Please confirm that the foregoing correctly sets forth our agreement
by signing and returning to us the duplicate copy of this side letter enclosed
herewith.

                                               Very truly yours,

                                               CMGI, INC.

                                               By: /s/ George A. McMillan
                                                  ------------------------------
                                                  Name: George A. McMillan
                                                  Title: Chief Financial Officer
                                                         and Treasurer
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Acknowledged and agreed to as of the date first set forth above:

COMPAQ COMPUTER CORPORATION

By: /s/ Ben K. Wells
   ---------------------------------------
   Name:
   Title:

COMPAQ FINANCIAL SERVICES CORPORATION

By: /s/ Edward W. Andrews, Jr.
   ---------------------------------------
   Name: Edward W. Andrews, Jr.
   Title: Vice President & Managing Director

COMPAQ FINANCIAL SERVICES CANADA CORPORATION

By: /s/ Edward W. Andrews, Jr.
   ---------------------------------------
   Name: Edward W. Andrews, Jr.
   Title: Vice President & Managing Director

COMPAQ FINANCIAL SERVICES COMPANY

By: /s/ Edward W. Andrews, Jr.
   ---------------------------------------
   Name: Edward W. Andrews, Jr.
   Title: Vice President & Managing Director

NAVISITE INC.

By: /s/ Patricia Gilligan
   ---------------------------------------
   Name: Patricia Gilligan
   Title: Chief Executive Officer

ALTAVISTA COMPANY

By: /s/ David H. Bills
   ---------------------------------------
   Name: David H. Bills
   Title: V.P., Operations

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