Document:

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                                                                   EXHIBIT 10.15

          CONFIDENTIAL MATERIALS OMITTED AND FILED SEPARATELY WITH THE
         SECURITIES AND EXCHANGE COMMISSION. ASTERISKS DENOTE OMISSIONS.

[EMULEX LOGO]

                     MANUFACTURING RIGHTS LICENSE AGREEMENT

                                     BETWEEN

                               EMULEX CORPORATION

                                       AND

                                  EGENERA, INC.

This Agreement is entered into by and between Egenera, Inc. ("Egenera"), a
Delaware corporation with offices at 165 Forest Street, Marlborough, MA 01752,
and Emulex Corporation ("Emulex"), a California corporation with offices at 3535
Harbor Boulevard, Costa Mesa, CA 92626, and shall be effective as of the later
of the dates on which the parties execute the Agreement ("Effective Date").

Now, therefore, the parties agree as follows:

1.    DEFINITIONS

      1.1   "Egenera Product" means the Egenera BladeFrame.

      1.2   "Emulex Product" means the Emulex cLAN Falcon ASIC (GNNA100-01),
            cLAN5300 Board Stack Assembly (891000002), and cLAN1000 Host Bus
            Adapter (cLAN1000). The term "Emulex Product" shall include the
            Software, as defined below, unless context indicates otherwise.

      1.3   "Software" means any software, firmware, or other code necessary for
            the operation of the Emulex Product. The Software includes the cLAN
            Linux 1.3 code base.

      1.4   "Source Documentation" means documentation necessary for Egenera to
            have the Emulex Product manufactured. Source Documentation includes
            the Emulex Product approved vendor list; schematics; costed bill of
            materials, quality and reliability data; DVT, DFM, and DFT;
            packaging data; engineering change orders; and process flows.

      1.5   "Additional Documentation" means the Falcon ASIC source code, which
            will be included for documentation purposes only.

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      1.6   "Product Documentation" means a copy of the Emulex Product user
            manual and diagnostic software documentation, if any.

      1.7   "Derivative Work" means a product or other work that is based upon
            one or more pre-existing products or other works, such as a
            revision, modification, translation (including compilation or
            recapitulation), abridgment, condensation, expansion, or any other
            form in which a pre-existing product or work may be recast, adapted,
            transformed, or otherwise altered, and that, if prepared without
            authorization by the owner of the pre-existing work, would
            constitute an infringement of the owner's intellectual property
            rights.

2.    SCOPE OF AGREEMENT

      Subject to payment of the royalties as described in Section 5, Emulex
      hereby licenses Egenera to manufacture, use, and sell or otherwise
      distribute the Emulex Product in accordance with the terms and conditions
      of this Agreement. This Agreement is non-exclusive and the parties may
      enter into similar agreements with other parties.

3.    TERM AND TERMINATION

      3.1   This Agreement shall commence on the Effective Date and, unless
            terminated as provided elsewhere herein, shall remain in full force
            and effect for a period of two years. Egenera may request renewal of
            this Agreement for an additional term of one year by providing a
            written renewal request to Emulex no later than ninety days prior to
            the end of the initial term.

      3.2   Egenera may terminate this Agreement at any time, without cause, by
            giving Emulex at least ten days' prior written notice. Either party
            may immediately terminate this Agreement if the other party fails to
            perform any of the material obligations imposed upon it under the
            terms of this Agreement so as to be in default hereunder and fails
            to cure such default within thirty days after receiving written
            notice thereof.

      3.3   The licenses granted hereunder shall end upon termination or
            expiration of this Agreement, except as may be required for Egenera
            to continue to support its end users' use and operation of the
            Emulex Product. Termination or expiration of this Agreement will not
            relieve the parties of any obligations incurred prior to the date of
            termination.

4.    GRANT OF LICENSE

      4.1   During the term of this Agreement, Emulex hereby grants to Egenera
            all appropriate rights and licenses under Emulex's applicable
            patents, copyrights, and other intellectual property rights,
            including the Source Documentation ("Emulex IP") necessary to enable
            Egenera to have the Emulex Product manufactured by Manufacturers'
            Services Limited ("MSL"), and to use, market, promote, lease, sell
            and otherwise distribute the Emulex Product, when such Emulex
            Product is incorporated into the Egenera Product or for add-ons and
            field replacements, and to have the Emulex Product repaired by MSL.
            Emulex also

                                                                    Page 2 of 14

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            grants Egenera the right to reproduce or have reproduced the
            Software for distribution in binary code form for use with the
            Emulex Product. Egenera shall not have the right to (a) make any
            Derivative Work of the Emulex Product, except as may be necessary to
            allow Egenera to develop, market, sell or otherwise distribute the
            Egenera Product; (b) make any Derivative Work of the Emulex Product,
            Software, or Source Documentation, where such Derivative Work would,
            in practices customary to the computer industry, be considered a new
            or succeeding generation of the Emulex Product; or (c) use the
            Emulex IP to create products that compete, directly or indirectly,
            with the Emulex Product or other products manufactured and sold or
            otherwise distributed by Emulex. Egenera shall use the Additional
            Documentation for documentation purposes only, and shall not make
            any Derivative Work of the Additional Documentation without Emulex's
            express written permission.

      4.2   Emulex agrees that Egenera shall have the right to have the Emulex
            Product manufactured and repaired by a contract manufacturer other
            than MSL if MSL (a) is unable to manufacture the Emulex Product in
            sufficient quantities to fulfill Egenera's orders; (b) experiences a
            decrease in Emulex Product quality such that Egenera is unable to
            meet its customers' requirements; or (c) otherwise defaults in its
            obligations to manufacture the Emulex Product; and (d) any or all of
            the foregoing are not remedied within a reasonable time after
            Egenera provides notice and an opportunity to cure such default. If
            Egenera elects, under this Section, to have the Emulex Product
            manufactured by a contract manufacturer other than MSL, Egenera
            shall provide Emulex with timely written notice of such change,
            including name and address of the new contract manufacturer and the
            reason for the change.

      4.3   Emulex hereby grants Egenera a worldwide, nonexclusive, royalty
            free, fully paid-up right and license to use, adapt, make, or have
            made Derivative Works of all or any portion of the Product
            Documentation, solely for use and distribution with the Emulex
            Product.

      4.4   Egenera shall make all Product purchases directly from MSL. Emulex
            shall authorize MSL to accept Product orders from Egenera and/or
            Egenera's contract manufacturers; however, Egenera shall be solely
            responsible for managing the relationships between MSL and each of
            the contract manufacturers. As of the Effective Date hereof,
            Egenera's contract manufacturers are: (a) SMTC - Boston, with
            offices at Franklin Industrial Park, 109 Constitution Blvd., Unit
            160, Franklin, MA 02038; (b) SMTC - Canada, with offices at 635 Hood
            Road, Markham, Ontario L3R 4N6, Canada; and (c) DTI, with offices at
            476 Highland Colony Parkway, P.O. Box 748, Ridgeland, MS 39158-0748.
            Egenera may add or delete contract manufacturers by prior written
            request to Emulex and Emulex will authorize MSL to accept orders
            from new contract manufacturers.

      4.5   Except as specified herein, Emulex shall retain all right, title,
            and interest in and to the Emulex Product, Software, Product
            Documentation, and the Emulex IP licensed hereunder.

      4.6   Egenera shall not publicize or use the name or trademark of Emulex
            in any manner related to this Agreement without Emulex's written
            consent. Egenera

                                                                    Page 3 of 14

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            shall not issue any press release or other publicity regarding this
            Agreement without Emulex's prior written consent.

5.    ROYALTIES AND AUDIT RIGHTS

      5.1   As of the Effective Date hereof and in consideration for the Emulex
            IP license granted hereunder, Egenera shall pay to Emulex royalties
            of [**]% of Egenera's cost of goods for the following Emulex
            Products:

                        Falcon ASIC (GNNA100-01)
                        CLAN5300 Board Stack Assembly (891000002)
                        CLAN1000 HBA (cLAN1000)

            Upon the Effective Date, Emulex shall fully disclose to Egenera
            Emulex's cost of goods for the Emulex Products, including MSL's
            warranty terms, for the first calendar quarter that this Agreement
            is in effect. Such information shall be in the form of a price sheet
            and costed bill of materials, and shall be transmitted to Egenera
            electronically. Thereafter, Egenera will negotiate such costs and
            warranty terms with MSL and will notify Emulex within thirty days of
            the end of each calendar quarter of the total amount due from
            Egenera to MSL during that quarter, in order that Emulex may
            calculate royalties due from Egenera hereunder.

            Emulex hereby represents that the Emulex Product costs are
            negotiated with MSL quarterly; and that since Egenera's royalty
            payments are based on those costs, the total royalty payments due
            from Egenera to Emulex will change in accordance with any change in
            Emulex Product costs.

      5.2   Egenera shall pay such royalties no later than thirty days after the
            end of each calendar quarter. The royalties described or
            contemplated under this Agreement shall be paid in U.S. dollars.
            Such royalties do not include federal, state, or local excise,
            sales, or use taxes. If such taxes are applicable, Egenera shall be
            responsible for calculating the appropriate tax and adding it to the
            royalty payments. Emulex shall not be required to issue invoices or
            calculate any taxes that may be due hereunder.

      5.3   Egenera shall make royalty payments by wire transfer to the
            following account:

                        Silicon Valley Bank
                        38 Technology Drive, Suite 150
                        Irvine, CA  92618
                        Account #06005926-70
                        ABA #1211-4039-9

      5.4   Egenera shall keep written records documenting its manufacture of
            the Emulex Products in sufficient detail to allow Emulex to
            determine whether Egenera's royalty payments are accurate. At the
            end of each calendar quarter, Egenera shall furnish a report to
            Emulex summarizing its Emulex Product manufacturing activities,
            including at a minimum, the number of Emulex Products manufactured
            and related royalty calculations.

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      5.5   Emulex shall have the right, no more frequently than once per year,
            upon reasonable prior notice and subject to appropriate
            confidentiality provisions, to audit Egenera's records to determine
            the accuracy of Egenera's royalty payments; however, if Emulex
            reasonably determines that Egenera's royalties are underpaid in any
            one calendar quarter by five percent or more, Emulex may increase
            the frequency of its audits to quarterly until Egenera demonstrates
            to Emulex's reasonable satisfaction that its royalty payments are
            accurate. In the event any underpayment is discovered, Egenera shall
            immediately make payment to correct the underpayment.

6.    SUPPORT SERVICES

      6.1   Emulex shall provide Egenera with manufacturing transition support
            services as follows: 20 hours from the date that Emulex makes the
            Emulex IP available to Egenera through June 30, 2002; and ten hours
            per calendar quarter thereafter through the term of this Agreement.
            Such manufacturing transition support shall include services such as
            training, time with key suppliers, and the like.

      6.2   Emulex shall provide Egenera with general engineering support in the
            form of technical consultation as follows: 10 hours per calendar
            quarter through the term of this Agreement. Requests for such
            support shall be made by Egenera to a support coordinator to be
            named by Emulex, who will track and report the time used by Egenera.

      6.3   All support described in this Section 6 shall be on a resources
            available basis only. The quarterly hourly limits shall not be
            cumulative; if Egenera uses less time than allotted per quarter, the
            remaining time shall not carry forward into subsequent quarters. If
            Egenera's requests for support exceed the time limits set forth
            herein, Egenera may request additional support, Emulex will evaluate
            Egenera's request in light of resource availability and other
            relevant factors, and if Emulex accepts Egenera's request, the
            parties will mutually agree to time limits and the type of support
            required. Egenera shall pay $[**] per hour of support in excess of
            the hourly limits set forth above.

      6.4   If Emulex personnel incur travel or other expenses while providing
            support to Egenera, Egenera shall reimburse Emulex for actual,
            documented costs of travel, lodging, meals, and other necessary
            related expenses.

7.    REPRESENTATIONS AND WARRANTIES

      7.1   Emulex makes no warranties whatsoever, express or implied, with
            respect to the Emulex IP. Egenera agrees that the Emulex IP is
            accepted and utilized "AS IS" without warranty of any kind. Emulex
            does not warrant to correct any defects or errors that may exist in
            the Emulex Product, Software, Source Documentation, or Product
            Documentation.

      7.2   Emulex represents and warrants that it has the right to enter into
            this Agreement and to grant the licenses granted herein.

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      7.3   THE EXPRESS WARRANTIES SET FORTH IN THIS SECTION ARE IN LIEU OF ALL
            OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES OF
            MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, AND
            NON-INFRINGEMENT.

8.    CONFIDENTIAL INFORMATION

      8.1   Both parties may, in connection with this Agreement, disclose to the
            other party information considered confidential and proprietary
            information of the disclosing party ("Confidential Information").
            Information shall be considered Confidential Information if
            identified as confidential in nature by the disclosing party at the
            time of disclosure, or which by its nature is normally and
            reasonably considered confidential, such as information related to
            past, present or future research, development, or business affairs,
            any proprietary products, materials or methodologies, or any other
            information which provides the disclosing party with a competitive
            advantage. The Source Documentation shall be considered Confidential
            Information. Neither party shall disclose such Confidential
            Information to any third party without the prior written consent of
            the disclosing party. The receiving party shall protect the
            disclosing party's Confidential Information with the same degree of
            care that it regularly uses to protect its own Confidential
            Information from unauthorized use or disclosure. No rights or
            licenses under patents, trademarks, trade secrets, or copyrights are
            granted or implied by any disclosure of Confidential Information.

      8.2   The obligations of confidentiality imposed by this Agreement shall
            not apply to any Confidential Information that: (a) is rightfully
            received from a third party without accompanying markings or
            disclosure restrictions; (b) is independently developed by employees
            of the receiving party who have not had access to such Confidential
            Information; (c) is or becomes publicly available through no
            wrongful act of the receiving party; (d) is already known by the
            receiving party as evidenced by documentation bearing a date prior
            to the date of disclosure; or, (e) is approved for release in
            writing by an authorized representative of the disclosing party. In
            addition, each party shall be entitled to disclose the other party's
            Confidential Information to the extent such disclosure is requested
            by the order of a court of competent jurisdiction, administrative
            agency, or other governmental body, provided that the party required
            to make the disclosure shall provide prompt, advance notice thereof
            to enable the other party to seek a protective order or otherwise
            prevent such disclosure.

      8.3   The terms and conditions of this Agreement, but not its existence,
            are considered Confidential Information.

9.    INDEMNIFICATION

      9.1   Emulex shall indemnify and hold Egenera harmless from and against
            any claim or suit brought against Egenera to the extent that such
            action is based upon a claim that any Emulex Product manufactured
            hereunder infringes a patent, copyright, trade secret, or any
            intellectual property right of any third party, and to indemnify
            Egenera for its related costs, expenses, and damages, including
            reasonable attorneys' fees, and to pay those costs, expenses and
            damages

                                                                    Page 6 of 14

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            incurred by Egenera, provided that Egenera gives Emulex prompt
            written notice of any infringement claim, available information, and
            sole authority and control to settle or defend the claim, at
            Emulex's expense. Emulex reserves the right to choose the attorneys
            who may pursue any action that arises under this section.

      9.2   Emulex shall have no liability to Egenera to the extent that a claim
            of infringement is based upon: (i) compliance with designs, plans,
            or specifications of Egenera; (ii) the combination of the Emulex
            Product with other product or devices not purchased hereunder where
            the Emulex Product itself would not be infringing; or (iii)
            modifications of the Emulex Product made by Egenera where unmodified
            Emulex Product would not be infringing.

10.   LIABILITY FOR INJURY

      Emulex shall indemnify and defend Egenera against all claims, suits,
      losses, expenses, and liabilities for bodily injury, death, and property
      damage caused by use of the Emulex Product, or through the negligence of
      Emulex or any person for whose actions Emulex is legally liable. Emulex
      shall carry and maintain Worker's Compensation, errors and omissions, and
      general liability insurance coverage to adequately cover Emulex's
      obligations under this Section.

11.   LIMITATION OF LIABILITY

      NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY DIRECT, INDIRECT,
      SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
      ARISING OUT OF THIS AGREEMENT OR ANY PERFORMANCE HEREUNDER, EVEN IF SUCH
      PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

12.   MISCELLANEOUS PROVISIONS

      12.1  Governing Law

            This Agreement shall be governed by and construed in accordance with
            the laws of the state of California, without regard for its rules
            concerning the conflicts of law.

      12.2  Relationship of the Parties

            The parties are and shall remain at all times, independent
            contractors in the performance of this Agreement and nothing herein
            shall be deemed to create a joint venture, partnership or agency
            relationship between the parties. Neither party shall have the right
            or authority to assume or to create any obligation or
            responsibility, express or implied, on behalf of the other except as
            may be expressly provided otherwise in this Agreement. Each party
            shall be solely responsible for the performance of its employees
            hereunder and for all costs and expenses of its employees, to
            include but not be limited to employee benefits.

                                                                    Page 7 of 14

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      12.3  Successors and Assigns

            Egenera may not assign any of its rights or obligations hereunder
            without the prior written consent of Emulex, which consent Emulex
            may grant in its sole discretion. Any attempt to assign any rights,
            duties or obligations hereunder without Emulex's written consent
            will be void, and shall be considered a material breach of this
            Agreement.

      12.4  Waiver

            The failure of either party to insist upon or enforce strict
            conformance by the other party of any provision of this Agreement or
            to exercise any right under this Agreement shall not be construed as
            a waiver or relinquishment of such party's right unless made in
            writing and shall not constitute any subsequent waiver or
            relinquishment.

      12.5  Amendment and Modification

            To be valid, amendments or modifications to the Agreement must be in
            writing and signed by authorized representatives of both parties.
            Any verbal agreements, discussions, and understandings, expressed or
            implied, shall not constitute an amendment to this Agreement.

      12.6  Invalid Provisions

            If any provision of this Agreement is finally held by a court of
            competent jurisdiction to be illegal or unenforceable, the legality,
            validity, and enforceability of the remaining provisions of this
            Agreement shall not be affected or impaired.

      12.7  Survivorship

            The provisions of this Agreement which by their nature survive
            termination or expiration of the Agreement, including but not
            limited to the provisions of Sections 3.3 (Term and Termination), 7
            (Representations and Warranties), 8 (Confidential Information), 9
            (Indemnification), 10 (Liability for Injury), 11 (Limitation of
            Liability), and 12 (Miscellaneous Provisions) of this Agreement
            shall survive the termination or expiration of this Agreement.

      12.8  Force Majeure

            Neither party shall be responsible for any delay in performing this
            Agreement to the extent that such delay is caused by fire, flood,
            hurricane, earthquake, explosion, war, strike, embargo, government
            law or regulation, action of civil or military authority, or act of
            God.

                                                                    Page 8 of 14

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      12.9  Attorneys' Fees

            If either party commences litigation to enforce any provision of
            this Agreement, the prevailing party shall be entitled to recover
            reasonable attorneys' fees and expenses of litigation, including
            fees and expenses of any appeal.

      12.10 Notices

            Unless otherwise expressly provided for, all notices, requests,
            demands, consents or other communications required or pertaining to
            this Agreement shall be sent by next business day courier, fax
            followed by confirmation by mail, e-mail, or some other method that
            provides proof of delivery, to the address set forth below:

                   Emulex:           Emulex Corporation
                                     3535 Harbor Blvd.
                                     Costa Mesa, CA  92626
                                     Attn: Contracts Administration

                   Egenera:         Egenera, Inc.
                                    165 Forest Street
                                    Marlborough, MA  01752
                                    Attn:  John Ralen

            In case of mailing, the effective date of delivery of any notice,
            demand, or consent shall be considered to be five days after proper
            mailing.

      12.11 Other Communications

            Each party will designate one or more persons to act as primary
            contacts. These contacts will facilitate communication between the
            parties in relation to this Agreement, including without limitation,
            the activities set forth in Sections 5 and 6. The names, telephone
            and facsimile numbers of the contacts will be provided by the
            parties to each other, and may be changed by written notice.

      12.12 Headings

            The section and paragraph headings of this Agreement are intended as
            a convenience only, and shall not affect the interpretation of its
            provisions.

      12.13 Conflicting Terms

            The parties agree that the terms and conditions of this Agreement
            shall prevail, notwithstanding any contrary or additional terms in
            any purchase order, sales acknowledgment, confirmation or any other
            document issued by either party in relation to this Agreement.

                                                                    Page 9 of 14

<PAGE>

      12.14 Export Authorization

            Regardless of any disclosure made by Egenera to Emulex of any
            ultimate destination of the Emulex Products, Egenera will not
            export, re-export or re-sell any Emulex Product without first
            obtaining prior written authorization from the U.S. Department of
            Commerce or any other Agency or Department of the United States
            Government, as and if required.

13.   ENTIRE AGREEMENT

      This Agreement constitutes the entire Agreement between the parties and
      supersedes all prior or contemporaneous agreements, discussions, and
      understandings between the parties, either express or implied. The
      following Attachments are part of this Agreement and are incorporated
      herein by this reference.

IN WITNESS WHEREOF, the parties have caused this Agreement to be executed by
their duly authorized representatives.

EMULEX CORPORATION                                     EGENERA, INC.

By:  /s/Paul F. Folino                       By:   /s/Thomas F. Sheehan
    --------------------------------         -----------------------------------
(Signature)                                  (Signature)

Name:   Paul F. Folino                       Name:    Thomas F. Sheehan
    --------------------------------         -----------------------------------
(Please Print or Type)                       (Please Print or Type)

Title:  President & CEO                      Title:
                                                    ----------------------------

Date:    March 22, 2002                      Date:
                                                    ----------------------------

                                                                   Page 10 of 14

<PAGE>

                                 AMENDMENT NO. 1

                                       TO

                     MANUFACTURING RIGHTS LICENSE AGREEMENT

                                     BETWEEN

                                  EGENERA, INC.

                                       AND

                               EMULEX CORPORATION

The parties agree that the above referenced Agreement is amended as follows.
This Amendment shall be effective as of the later of the dates on which this
Amendment is executed by the parties ("Effective Date").

1.    The first sentence of Section 1.2 is hereby amended to including the
      following: cLAN Raven ASIC (GNAX-500-1) and cLAN5000 switch.

2.    Section 1.4 is hereby amended to read as follows: "Source Documentation"
      means documentation necessary for Egenera to have the Emulex Product
      manufactured. Source Documentation includes the Emulex Product approved
      vendor list; schematics; costed bill of materials, quality and reliability
      data; DVT, DFM, and DFT; packaging data; engineering change orders;
      process flows; the Falcon ASIC and Raven ASIC source code; and the
      existing Alegro fab design files for the cLAN5300 switch.

3.    Section 1.5 is hereby deleted in its entirety and the remaining paragraphs
      of Section 1 renumbered accordingly.

4.    Section 1.6 is hereby amended to read as follows: "Product Documentation"
      means a copy of the Emulex Product user manual, diagnostic software
      documentation, and diagnostic source code for the Falcon ASIC and Raven
      ASIC.

5.    Section 2 is hereby amended as follows: the clause "Subject to payment of
      the royalties as described in Section 5,..." is deleted.

6.    The first sentence of Section 4.1 is hereby amended as follows: "During
      the term of this Agreement, Emulex hereby grants to Egenera a worldwide,
      nonexclusive, royalty free, fully paid-up right and license under Emulex's
      applicable patents, copyrights, and other intellectual property rights..."
      The last sentence of Section 4.1 is hereby deleted.

7.    Section 5 (Royalties and Audit Rights) is hereby deleted in its entirety.

8.    Section 6.2 is hereby amended to include the following: "Notwithstanding
      the foregoing, Emulex shall have no obligation to provide any support to
      Egenera in connection with the Raven ASIC or cLAN5000 switch."

                                                                    Page 1 of 14

<PAGE>

9.    Except as amended above, all terms and conditions of the Agreement remain
      in full force and effect.

IN WITNESS WHEREOF, the parties have caused this Amendment to be executed by
their duly authorized representatives.

EMULEX CORPORATION                         EGENERA, INC.

By: /s/ Michael J. Rockenbach              By: /s/ James H. Kelly
  --------------------------------             --------------------------------
(Signature)                                (Signature)

Name: Michael J. Rockenbach                Name: James H. Kelly
----------------------------------         -------------------------------------
(Printed or Typed)                         (Printed or Typed)

Title: Exec. V.P., & CFO                   Title: VP Manufacturing

Date: 9/23/02                              Date: 20 September 2002

                                                                    Page 2 of 14

<PAGE>

                                 AMENDMENT NO. 2

                                       TO

                     MANUFACTURING RIGHTS LICENSE AGREEMENT

                                     BETWEEN

                                  EGENERA, INC.

                                       AND

                               EMULEX CORPORATION

The parties agree that the above referenced Agreement is amended as follows.
This Amendment shall be effective as of the later of the dates on which this
Amendment is executed by the parties ("Effective Date").

1.    The parties hereby agree to extend the term of the Agreement for an
      additional three (3) years, to expire on April 9, 2007, unless terminated
      earlier as provided in Section 3 of the Agreement.

2.    Except as amended above, all terms and conditions of the Agreement remain
      in full force and effect.

IN WITNESS WHEREOF, the parties have caused this Amendment to be executed by
their duly authorized representatives.

EMULEX CORPORATION                                   EGENERA, INC.

By:  /s/ Paul Folino                        By:  /s/ Thomas Sheehan
    -----------------------------                ------------------------------
(Signature)                                 (Signature)

Name:  Paul Folino                          Name:  Thomas Sheehan
---------------------------------           -----------------------------------
(Printed or Typed)                          (Printed or Typed)

Title:  Chairman and CEO                    Title:  Chief Financial Officer

Date:  2/6/04                               Date:  27 January 2004

                                                                    Page 2 of 14<PAGE>

                                                                   EXHIBIT 10.16

                         MICROSOFT MULTIPATH I/O DRIVER
                                PROGRAM AGREEMENT

      This MICROSOFT MULTIPATH I/O DRIVER PROGRAM AGREEMENT ("AGREEMENT") is
made and entered as of August 26, 2002 ("EFFECTIVE DATE"), by and between
MICROSOFT CORPORATION, a Washington corporation, with offices at One Microsoft
Way, Redmond, WA 98052-6399 ("MICROSOFT"), and EGENERA, INC., having its
principal place of business at MARLBORO, MASSACHUSETTS ("COMPANY").

                                   BACKGROUND

Company develops and markets block mode (disk) storage devices and/or storage
management software products. To improve the performance of Company's products
on Windows Operating Systems (as defined below), Company desires to use
Microsoft's Multipath I/O Driver Kit software. Microsoft is willing to license
the same to Company at no charge, so long as Company complies with the
requirements of Microsoft's Multipath I/O Driver Program as set forth in this
Agreement and its Exhibits.

                              TERMS AND CONDITIONS

1.    DEFINITIONS

      1.1   "MPIO DDK" means the software and related materials described in
            Exhibit A.

      1.2   "MULTIPATH SOLUTION" means a multipath solution developed by Company
            that enables I/O failover and possibly load-balancing when used with
            the Company's block mode (disk) storage devices and/or storage
            management software with Windows Operating Systems. The Multipath
            Solution includes (i) drivers and installation (INF) files developed
            using the MPIO DDK; (ii) a device specific module(s) for one or more
            block mode (disk) storage devices; (iii) an installer application
            based on the sample code; and (iv) a user interface and (v)
            documentation.

      1.3   "WINDOWS OPERATING SYSTEMS" means the following Microsoft Windows
            operating system products: Microsoft Windows 2000 Server, Windows
            2000 Advanced Server, or Windows 2000 Datacenter Server (with
            Service Pack 2 or later installed), or any version of the Windows.
            NET Server Family (Beta 3 or Limited Edition or later).

2.    DEVELOPMENT OF MULTIPATH SOLUTION

      2.1   Delivery of MPIO DDK.

            (a)   Microsoft shall deliver, or otherwise make available, the MPIO
                  DDK to Company no later than April 15, 2002 or 14 days after
                  execution of this agreement, whichever occurs later. The MPIO
                  DDK is deemed accepted upon receipt.

            (b)   Microsoft may, but is not obligated to, provide updates of the
                  MPIO DDK to Company hereunder, in which case such updates
                  shall also be deemed to be included in the defined term MPIO
                  DDK and therefore governed by this Agreement, unless other
                  terms of use are provided to Company by Microsoft with such
                  updates. Company shall use commercially reasonable efforts to
                  use

                       Microsoft Corporation Confidential

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                  the most recent updates of the MPIO DDK delivered or made
                  available to it by Microsoft with all subsequent releases of
                  the Multipath Solutions developed with the MPIO DDK.

      2.2   Use of MPIO DDK. Company shall use the MPIO DDK to develop one or
            more Multipath Solutions. Company's use of the MPIO DDK is subject
            to the terms and conditions of the end user license agreement
            ("EULA") attached as Exhibit B.

      2.3   Development Requirements. In developing the Multipath Solutions,
            Company shall comply with the following:

            (a)   Company shall not alter or remove any copyright, trademark or
                  other protective notices contained in the MPIO DDK (or any
                  redistributables);

            (b)   The storage devices managed by Company's Multipath Solution
                  must be exposed as block mode devices and not file server
                  oriented devices. In the case where a storage device supports
                  both block mode devices and file server oriented devices, the
                  Multipath Solution may be applied to the block mode interfaces
                  only;

            (c)   Multipath Solutions must implement host interfaces to Windows
                  Operating Systems using only the driver interfaces documented
                  in the applicable driver development kit (DDK) for the Windows
                  Operating System. Multipath Solutions may not use any
                  undocumented host interfaces;

            (d)   In the device specific module for a Multipath Solution,
                  Company must implement all Windows Management Instrumentation
                  (WMI) interfaces that are documented in the applicable driver
                  development kit for the Windows Operating System;

            (e)   If Company extends any WMI interfaces in a Multipath Solution,
                  Company must restrict access to the new classes of the WMI
                  interfaces via access controls lists (ACLs);

            (f)   The installation routine for the Multipath Solution must use
                  INF files and call the setup APIs in the applicable Windows
                  Operating System, per the sample installation code included in
                  the MPIO DDK.

            (g)   Company shall use the MPIO DDK to create complete Multipath
                  Solutions only (i.e., Multipath Solutions containing: (i)
                  drivers and installation (INF) files developed using the MPIO
                  DDK; (ii) a device specific module for Company's block mode
                  (disk) storage devices and/or storage management software;
                  (iii) an installer application; and (iv) a user interface);

            (h)   Company shall not use the MPIO DDK to create Multipath
                  Solutions that restrict access or otherwise forcibly tie the
                  storage device to a particular host bus adapter's driver, but
                  may use additional capabilities provided by an adapter or
                  driver, so long as the MPIO software functions when used with
                  standard miniport drivers; and

            (i)   Company's Multipath Solution must be developed so that its
                  installation and use on a computer or server does not delete
                  or disrupt the installation or use of any

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                other Microsoft MPIO-based Multipath solution that may be
                installed either after or before the installation of Company's
                Multipath Solution.

 3.    DISTRIBUTION AND SUPPORT OF MULTIPATH SOLUTIONS

      3.1   Designed for Windows Operating Systems Program(s). Prior to
            distributing any Multipath Solution, Company must submit the
            Multipath Solution for evaluation and testing under Microsoft's
            Windows Logo Program for Hardware ("LOGO PROGRAM") described, as of
            the Effective Date, at http://www.microsoft.com/hwtest. Company
            shall not distribute any Multipath Solution developed using the MPIO
            DDK unless and until the Multipath Solution has satisfied all of the
            then-current requirements under the Logo Program for use of the
            applicable program logo(s).

      3.2   End User Agreements and Support. Multipath Solution developed using
            the MPIO DDK shall be distributed with an end user license agreement
            that contains terms that are at least as protective of Microsoft as
            the EULA set forth in Exhibit B. Company shall inform its end-users
            that any technical support regarding use of the Multipath Solution
            must be directed to Company. Company is responsible for any and all
            maintenance, end user support, technical support, and updates with
            respect to its Multipath Solution, including any components from the
            MPIO DDK incorporated therein. Microsoft may, but is not obligated
            to, provide end users with updates to the redistributables supplied
            with the MPIO DDK through updates or new versions of Windows
            Operating Systems.

      3.3   Support Agreement with Microsoft. Prior to distributing any
            Multipath Solution developed using the MPIO DDK, Company and
            Microsoft shall enter into a separate written agreement that further
            describes the parties' respective obligations to provide end user
            technical support. Such agreement will be consistent with the terms
            and conditions of this Agreement. If Microsoft determines, in it's
            sole discretion, that an existing agreement with Company satisfies
            the foregoing requirements than such agreement will be attached as
            Exhibit C.

      3.4   Relationship with Microsoft. Company shall not make any untrue or
            misleading statement regarding the nature of its relationship with
            Microsoft, or regarding any Multipath Solutions built using the MPIO
            DDK. In describing Company's activities related to this Agreement,
            Company will limit its description to the following: "Company is a
            licensee of the MPIO Driver Development Kit and is using it in
            Company's <<Insert model number or other description of Company
            product(s)>>."

            (a)   In the event Company has any doubt regarding whether
                  particular statements comply with this Section 3.4, Company
                  will seek Microsoft's written approval before making the
                  statement.

            (b)   At Microsoft's request, Company will promptly retract to the
                  extent possible any statements made by Company that Microsoft
                  reasonably deems not in compliance with this Section 3.4. This
                  remedy shall be in addition to, and not in lieu of, any
                  remedies at law or in equity to which Microsoft may be
                  entitled.

4.    INPUT

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Company may agree to provide to Microsoft comments, suggestions or other
feedback regarding the MPIO DDK and/or Windows Operating Systems (collectively,
"Feedback"). Company further agrees that: (i) Microsoft may freely use,
disclose, reproduce, license, distribute and otherwise commercialize the
Feedback in any Microsoft product, technology, service, specification or other
documentation (collectively, "MICROSOFT OFFERINGS"); (ii) Company also grants
third parties, without charge, only those patent rights necessary to enable
their products, technologies or services to use or interface with any specific
parts of a Microsoft product, technology or service that incorporates the
Feedback; and (iii) Company will not give Microsoft Feedback that is subject to
license terms that seek to require any Microsoft Offering incorporating or
derived from such Feedback, or other Microsoft intellectual property, to be
licensed to or otherwise shared with any third party.

5.    CONFIDENTIALITY

      5.1   Confidentiality Obligations. Company expressly undertakes to retain
            in confidence any source code supplied with the MPIO DDK, the terms
            and conditions of this Agreement, and any other non-public
            information provided by Microsoft under this Agreement
            ("CONFIDENTIAL INFORMATION"), and will make no use of Confidential
            Information except as permitted under the terms of this Agreement.
            Company shall use its best efforts to protect Confidential
            Information, which efforts shall be at least as great as the
            precautions it takes to protect its own confidential information and
            in no event less than a reasonable degree of care. Company may
            disclose Confidential Information only to Company's employees and
            consultants on a need-to-know basis. Company will have executed or
            shall execute appropriate written agreements with employees and
            consultants sufficient to enable Company to enforce all the
            provisions of this Agreement. Company may disclose Confidential
            Information in accordance with judicial or other governmental order,
            provided Company gives Microsoft reasonable notice prior to such
            disclosure to allow Microsoft a reasonable opportunity to seek a
            protective order or equivalent.

      5.2   Exclusions. Confidential Information does not include that
            information defined as Confidential Information above which: (i)
            became generally publicly available without the receiving party's
            breach of any obligation owed to the disclosing party under this
            Agreement; (ii) became known to the receiving party prior to the
            disclosure of such information; (iii) became known to the receiving
            party from a third party other than by the breach of an obligation
            of confidentiality owed under this Agreement, provided that such
            third party had the legal right to disclose such information; or
            (iv) was independently developed by the receiving party.

6.    INDEPENDENT DEVELOPMENT

Nothing in this Agreement restricts either party's ability to acquire, license,
develop, manufacture or distribute for itself, or have others acquire, license,
develop, manufacture or distribute for either party, similar technology
performing the same or similar functions as the technology contemplated by this
Agreement, or to market and distribute such similar technology in addition to,
or in lieu of, the technology contemplated by this Agreement.

7.    LIMITATION OF LIABILITY

IN NO EVENT SHALL MICROSOFT BE LIABLE FOR ANY CONSEQUENTIAL, INDIRECT,
INCIDENTAL, PUNITIVE, SPECIAL OR OTHER DAMAGES WHATSOEVER, INCLUDING WITHOUT
LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF
BUSINESS INFORMATION, AND THE LIKE, ARISING OUT OF THIS

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AGREEMENT OR THE USE OF OR INABILITY TO USE THE MPIO DDK, EVEN IF MICROSOFT HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

8.    TERM & TERMINATION

      8.1   Term. This Agreement commences on the Effective Date and, unless
            earlier terminated under Section 8.2, expires on the earlier date
            of: (a) the first commercial release of the successor version of the
            Microsoft Windows operating system after Net Server; and (b) the
            third anniversary of the Effective Date.

      8.2   Termination. Except for breaches of Section 5 (Confidentiality),
            either party may terminate this Agreement immediately upon written
            notice at any time if the other party is in material breach of any
            provision of this Agreement and has failed to cure that breach
            within thirty (30) days after written notice thereof. Either party
            may terminate this Agreement immediately upon written notice at any
            time if the other party is in breach of Section 5 (Confidentiality).

      8.3   Effect of Termination

            (a)   Upon the expiration or termination of this Agreement, Company
                  shall return the MPIO DDK to Microsoft. Unless Microsoft
                  terminates this Agreement for a breach by Company, after the
                  expiration or termination of this Agreement Company may
                  continue to distribute versions of Company's Multipath
                  Solutions that have been developed prior to expiration or
                  termination subject to the terms and conditions of this
                  Agreement and the MPIO DDK end user license agreement attached
                  as Exhibit B. If this Agreement is terminated due to a breach
                  by Company, however, all of Company's rights to use the MPIO
                  DDK (and any redistributables contained there) immediately
                  terminate as well.

            (b)   Sections 1, 3.4 and 4 through 11 survive any termination or
                  expiration of this Agreement.

9.    REPRESENTATIONS AND WARRANTIES

      9.1   Mutual Warranties. Each party hereby represents and warrants that
            (i) this Agreement has been duly and validly executed and delivered
            by such party and constitutes a legal and binding obligation of such
            party, enforceable against such party in accordance with its terms;
            (ii) such party has all necessary power and authority to execute and
            perform in accordance with this Agreement; and (iii) such party's
            execution, delivery and performance of this Agreement will not
            conflict with or violate any provision of law, rule or regulation to
            which such party is subject, or any agreement or other obligation
            directly or indirectly applicable to such party or binding upon its
            assets.

      9.2   NO OTHER WARRANTIES. EXCEPT AS SET FORTH IN SECTION 9.1 OR THE END
            USER LICENSE AGREEMENT FOR THE MPIO DDK ATTACHED AS EXHIBIT B, THERE
            IS NO WARRANTY OF TITLE, QUIET ENJOYMENT, QUIET POSSESSION,
            CORRESPONDENCE TO DESCRIPTION, AUTHORITY, OR NONINFRINGEMENT IN ANY
            MATERIALS OR INTELLECTUAL PROPERTY PROVIDED HEREUNDER, INCLUDING
            WITHOUT LIMITATION THE MPIO DDK. EXCEPT AS SET FORTH IN SECTION 9.1
            OR THE END USER LICENSE AGREEMENT FOR THE MPIO DDK ATTACHED AS
            EXHIBIT B, EACH PARTY,

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            ON BEHALF OF ITSELF AND ITS SUPPLIERS AND WITH RESPECT TO THE OTHER
            PARTY AND ALL OTHER PERSONS OF EVERY NATURE WHATSOEVER, DISCLAIMS
            ANY REPRESENTATIONS OR WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY,
            AS TO ANY MATTER WHATSOEVER, INCLUDING BUT NOT LIMITED TO ANY (IF
            ANY) IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, OF FITNESS
            FOR A PARTICULAR PURPOSE, OF REASONABLE CARE OR WORKMANLIKE EFFORT,
            OF LACK OF NEGLIGENCE, OF A LACK OF VIRUSES, OF ACCURACY OR
            COMPLETENESS OF RESPONSES, OR OF NON-INFRINGEMENT, AND IMPLIED
            WARRANTIES ARISING FROM COURSE OF DEALING OR COURSE OF PERFORMANCE,
            ALL WITH REGARD TO ALL MATERIALS AND INTELLECTUAL PROPERTY LICENSED
            OR OTHERWISE PROVIDED IN CONNECTION WITH THIS AGREEMENT, INCLUDING
            WITHOUT LIMITATION THE MPIO DDK.

10.   NOTICES

All notices and requests in connection with this Agreement shall be deemed given
as of the day they are received either by messenger, delivery service, or in the
United States of America mails, postage prepaid, certified or registered, return
receipt requested, and addressed as follows:

              To Company:                      To Microsoft

              Thomas F. Sheehan                Microsoft Corporation
              EGENERA                          One Microsoft Way
              165 FOREST STREET                Redmond, WA 98052-6399
              MARLBORO, MA 01752               Attention:_______________________
                                               Phone:___________________________
                                               Fax: (425) 706-7329

                                               Copy to: Law & Corporate Affairs
                                               Fax:     (425) 706-7329

11.   GENERAL

      11.1  Governing Law/Jurisdiction/Attorneys' Fees. This Agreement shall be
            construed and controlled by the laws of the State of Washington.,
            Company consents to jurisdiction and venue in the federal courts
            sitting in King County, Washington, unless no federal subject matter
            jurisdiction exists, in which case Company consents to jurisdiction
            and venue in the Superior Court of King County, Washington, Process
            may be served on either party by U.S. Mail, postage prepaid,
            certified or registered, return receipt requested, or by such other
            method as is authorized by the Washington Long Arm Statute. If
            either party employs attorneys to enforce any rights arising out of
            or relating to this Agreement, the prevailing party shall be
            entitled to recover its reasonable attorneys' fees, costs and other
            expenses.

      11.2  No Partnership. Neither this Agreement, nor any terms and conditions
            contained herein, shall be construed as creating a partnership,
            joint venture, agency relationship or as granting a franchise.

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      11.3  Severability. If any provision of this Agreement other than Section
            11.4 is held by a court of competent jurisdiction to be illegal,
            invalid or unenforceable, the remaining provisions shall remain in
            full force and effect. The parties agree that if the provisions of
            Section 11.4 is held by a court of competent jurisdiction to be
            illegal, invalid or unenforceable, this entire Agreement shall be
            rendered null and void.

      11.4  Prohibition on Assignment by Company. Company may not assign this
            Agreement, or any rights or obligations hereunder, whether by
            operation of contract, law or otherwise, except with the express
            written consent of Microsoft, and any attempted assignment by
            Company in violation of this Section shall be void. For purposes of
            this Agreement, an "assignment" by Company under this Section shall
            be deemed to include, without limitation, each of the following: (a)
            a change in beneficial ownership of Company of greater than twenty
            percent (20%) (whether in a single transaction or series of
            transactions) if Company is a partnership, trust, limited liability
            company or other like entity; (b) a merger of Company with another
            party, whether or not Company is the surviving entity; (c) the
            acquisition of more than twenty percent (20%) of any class of
            Company's voting stock (or any class of non-voting security
            convertible into voting stock) by another party (whether in a single
            transaction or series of transactions); and (d) the sale or other
            transfer of more than fifty percent (50%) of Company's assets
            (whether in a single transaction or series of transactions). In the
            event of such assignment or attempted assignment by Company,
            Microsoft shall have the right to immediately terminate this
            Agreement.

      11.5  Taxes. Company shall pay, be responsible for and indemnify Microsoft
            and hold Microsoft harmless from and against any and all sales
            taxes, use taxes and any other taxes imposed by any jurisdiction as
            a result of (a) the entry into this Agreement; (b) the performance
            of any of the provisions of this Agreement; or (c) the transfer of
            any property, rights or any other grant hereunder.

      11.6  Entire Agreement. This Agreement constitutes the entire agreement
            between the parties with respect to the subject matter hereof and
            supersedes all prior and contemporaneous agreements or
            communications. It shall not be modified except by a written
            agreement dated subsequent to the date of this Agreement and signed
            on behalf of Company and Microsoft by their respective duly
            authorized representatives. No waiver of any breach of any provision
            of this Agreement shall constitute a waiver of any prior, concurrent
            or subsequent breach of the same or any other provisions hereof, and
            no waiver shall be effective unless made in writing and signed by an
            authorized representative of the waiving party.

IN WITNESS WHEREOF, Microsoft and Company have caused this Agreement to be
executed by their duly authorized representatives as of the date first written
above.

MICROSOFT CORPORATION                   COMPANY

/s/ Robert Short                        /s/ Thomas F. Sheehan
----------------------------------      ----------------------------------------
BY: Robert Short                        BY: Thomas F. Sheehan
   -------------------------------         -------------------------------------
Name (Print)                            Name (Print)

VP                                      CFO
----------------------------------      ----------------------------------------
Title                                   Title

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August 30, 2002                         August 26, 2002
-------------------------------         ---------------------------------------
Date                                    Date

                                    EXHIBIT A
                                    MPIO DDK

MPIO DDK means software and related documents designated by Microsoft as the
MPIO Driver Development Kit. These include the following components and any
updates, bug fixes, modifications or successor versions thereto provided by
Microsoft to Company under this Agreement:

MPIO DDK Kit Components:

Microsoft MPIO DDK
Microsoft MPIO specification
Microsoft MPIO binaries
Sample DSM (device specific module) source

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<PAGE>
                                   EXHIBIT B
                    End user License Agreement for MPIO DDK

IMPORTANT-READ CAREFULLY: This Microsoft End-User License Agreement ("EULA") is
a legal agreement between you (either an individual or a single entity) and
Microsoft Corporation for the Microsoft software product identified above, which
includes computer software and may include associated media, printed materials,
additional computer software applications, and "online" or electronic
documentation ("SOFTWARE PRODUCT"). BY DOWNLOADING, INSTALLING, COPYING, OR
OTHERWISE USING THE SOFTWARE PRODUCT, YOU AGREE TO BE BOUND BY THE TERMS OF THIS
EULA. IF YOU DO NOT AGREE TO THE TERMS OF THIS EULA, DO NOT INSTALL, COPY OR
OTHERWISE USE THE SOFTWARE PRODUCT. IF YOU RECEIVED THE SOFTWARE PRODUCT ON
DISKS OR OTHER MEDIA, PROMPTLY RETURN THE DISKS AND ACCOMPANYING ITEMS
(INCLUDING WRITTEN MATERIALS AND BINDERS OR OTHER CONTAINERS) TO MICROSOFT.

SOFTWARE PRODUCT LICENSE

The SOFTWARE PRODUCT is protected by copyright laws and international copyright
treaties, as well as other intellectual property laws and treaties. The SOFTWARE
PRODUCT is licensed, not sold.

1. GRANT OF LICENSE. This EULA grants you the following rights, provided that
you comply with the terms and conditions of this EULA:

a. SOFTWARE PRODUCT. Microsoft grants you a personal, limited, non-exclusive,
nontransferable, non-assignable license to install and use an unlimited number
of copies of the SOFTWARE PRODUCT on computers, including workstations,
terminals or other digital electronic devices ("COMPUTERS") to design, develop
and test device specific modules ("DSMs") that work in conjunction with
Microsoft Windows 2000 Server, Windows 2000 Advanced Server, or Windows 2000
Datacenter Server (with Service Pack 2 or later installed), or Windows .NET
Server, Windows .NET Enterprise Server, Windows .NET Datacenter Server (beta3 or
later), or any successor version thereof (each a "Microsoft Operating System
Product").

b. Sample Code. You may modify the sample source code located in the SOFTWARE
PRODUCT's SRC directory ("Sample Code") to design, develop and test your DSMs
that work in conjunction with Microsoft Operating System Products. You may also
reproduce and distribute in object code form the Sample Code along with any
modifications you make to the Sample Code, provided that you comply with the
Distribution Requirements described below in Section 1.c. For purposes of this
Section, "modifications" shall mean enhancements to the functionality of the
Sample Code and changes required to support any specific storage devices.

c. Redistribution Requirements. You may reproduce and distribute the modified
versions of the Sample Code to support any specific storage devices in object
code form ("Redistributables") as described above, provided that: (i) you
distribute the Redistributables only in conjunction with and as a part of your
DSMs; (ii) the Redistributables only operate in conjunction with Microsoft
Operating System Products; (iii) you do not permit further redistribution of the
Redistributables

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<PAGE>
by your end-user customers; (iv) you do not use Microsoft's name, logo, or
trademarks to advertise, market or promote your DSMs without the express written
permission of Microsoft; (v) you include a valid copyright notice on your DSMs;
(vi) you include all copyright and trademark notices contained in the Sample
Code; (vii) you agree to indemnify, hold harmless, and defend Microsoft from and
against any claims or lawsuits, including attorney's fees, that arise or result
from the use or distribution of your DSMs; (vii) you must have renamed the
Sample Code and the name of the drivers produced by it as part of your DSMs. You
are not authorized to distribute the original Sample Code.

d. PRE-RELEASE CODE. The SOFTWARE PRODUCT may contain pre-release code that is
not at the level of performance and compatibility of the final, generally
available, product offering. These portions of the SOFTWARE PRODUCT may not
operate correctly and may be substantially modified prior to first commercial
shipment. Microsoft is not obligated to make this or any later version of the
SOFTWARE PRODUCT commercially available. Microsoft grants you the right to
distribute test versions of your DSMs created using the pre-release code
provided you comply with the Distribution Requirements described in Section 1
and the following additional provisions: (a) you must mark the test version of
your drivers "BETA" and (b) you are solely responsible for updating your
customers with versions of your DSMs that operate satisfactorily with the final
commercial release of such pre-release code.

e. Reserved Rights. All rights not expressly granted are reserved to Microsoft.

2. DESCRIPTION OF OTHER RIGHTS AND LIMITATIONS.

a. Limitations on Reverse Engineering, Decompilation, and Disassembly. You may
not reverse engineer, decompile, or disassemble the SOFTWARE PRODUCT, except
and only to the extent that such activity is expressly permitted by applicable
law notwithstanding this limitation.

b. Identified Software. Your license rights to the SOFTWARE PRODUCT are
conditioned upon you (a) not incorporating Identified Software into, or
combining Identified Software with, the SOFTWARE PRODUCT or a derivative work
thereof; (b) not distributing Identified Software in conjunction with the
SOFTWARE PRODUCT, including without limitation the Sample Code, or a derivative
work thereof; and (c) not using Identified Software in the development of a
derivative work of the SOFTWARE PRODUCT. "Identified Software" means software
which is licensed pursuant to terms that directly or indirectly (i) create, or
purport to create, obligations for Microsoft with respect to the SOFTWARE
PRODUCT or derivative work thereof or (ii) grant, or purport to grant, to any
third party any rights or immunities under Microsoft's intellectual property or
proprietary rights in the SOFTWARE PRODUCT or derivative work thereof.
Identified Software includes, without limitation, any software that requires as
a condition of use, modification and/or distribution of such software that other
software incorporated into, derived from or distributed with such software be
(x) disclosed or distributed in source code form; (y) be licensed for the
purpose of making derivative works; or (z) be redistributable at no charge.

c. Rental. You may not rent, lease, or lend the SOFTWARE PRODUCT.
d. Consent to Use of Data. You agree that Microsoft and its affiliates may
collect and use technical information gathered in any manner as part of the
product support services provided to

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                       Microsoft Corporation Confidential
<PAGE>
you, if any, related to the SOFTWARE PRODUCT. Microsoft may use this
information solely to improve our products or to provide customized services or
technologies to you. Microsoft may disclose this information to others, but not
in a form that personally identifies you.

e. Upgrades.  To use a SOFTWARE PRODUCT labeled as an upgrade, you must first
be licensed for the product identified by Microsoft as eligible for the
upgrade. After upgrading, you may no longer use the product that formed the
basis for your upgrade eligibility.

f. ADDITIONAL SOFTWARE/SERVICES. Microsoft is not obligated to provide
maintenance, technical or other support, or updates to you for the SOFTWARE
PRODUCT licensed under this EULA. In the event that Microsoft does provide
maintenance, technical or other support, or updates, this EULA applies to such
additional software and updates of the SOFTWARE PRODUCT, including without
limitation supplements, services packages, hot fixes, or add-on components
(collectively "Supplements") that Microsoft may provide to you or make
available to you after the date you obtain your initial copy of the SOFTWARE
PRODUCT, unless we provide other terms along with such Supplements.

g. Software Transfer. Transfer - Internal. You may move the SOFTWARE PRODUCT to
a different computer on your premises. Transfer to Third Party. The initial
user of the SOFTWARE PRODUCT may not transfer the SOFTWARE PRODUCT to another
end user. This prohibition includes any indirect transfer, such as a
consignment.

h. Termination. Without prejudice to any other rights, Microsoft may terminate
this EULA if you fail to comply with the terms and conditions of this EULA. In
such event, you must destroy all copies of the SOFTWARE PRODUCT and all of its
component parts.

3. LINKS TO THIRD PARTY SITES. You may link to third party sites through the
use of the SOFTWARE PRODUCT. The third party sites are not under the control of
Microsoft, and Microsoft is not responsible for the contents of any third party
sites, any links contained in third party sites, or any changes or updates to
third party sites. Microsoft is not responsible for webcasting or any other
form of transmission received from any third party sites. Microsoft is
providing these links to third party sites to you only as a convenience, and the
inclusion of any link does not imply an endorsement by Microsoft of the third
party site.

4. U.S. GOVERNMENT LICENSE RIGHTS. SOFTWARE PRODUCT provided to the U.S.
Government pursuant to solicitations issued on or after December 1, 1995 is
provided with the commercial license rights and restriction described elsewhere
herein. SOFTWARE PRODUCT provided to the U.S. Government pursuant to
solicitations issued prior to December 1, 1995 is provided with "Restricted
Rights" as provided for in FAR, 48 CFR 52.227-14 (JUNE 1987) or DFAR, 48 CFR
252.227-7013 (OCT 1988), as applicable.

5. EXPORT RESTRICTIONS. You acknowledge that the SOFTWARE PRODUCT is subject to
U.S. export jurisdiction. You agree to comply with all applicable international
and national laws that apply to the SOFTWARE PRODUCT, including the U.S. Export
Administration Regulations, as well as end-user, end-use and country
destination restrictions issued by U.S. and other governments. For additional
information on exporting Microsoft products, see
http://www.microsoft.com/exporting//.

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                       Microsoft Corporation Confidential
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6.  DISCLAIMER OF WARRANTIES.  To the maximum extent permitted by applicable
law, Microsoft and its suppliers provide the SOFTWARE PRODUCT and support
services (if any) AS IS AND WITH ALL FAULTS, and hereby disclaim all other
warranties and conditions, whether express, implied, or statutory, including,
but not limited to, any (if any) implied warranties, duties or conditions of
merchantability, of fitness for a particular purpose, of reliability or
availability, of accuracy or completeness of responses, of results, of
workmanlike effort, of lack of viruses, and of lack of negligence, all with
regard to the SOFTWARE PRODUCT, and the provision of or failure to provide
support or other services, information, software, and related content through
the SOFTWARE PRODUCT or otherwise arising out of the use of the SOFTWARE
PRODUCT. ALSO, THERE IS NO WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT,
QUIET POSSESSION, CORRESPONDENCE TO DESCRIPTION, OR NON-INFRINGEMENT WITH REGARD
TO THE SOFTWARE PRODUCT.

7.  EXCLUSION OF INCIDENTAL, CONSEQUENTIAL AND CERTAIN OTHER DAMAGES. TO THE
MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL MICROSOFT OR ITS
SUPPLIERS BE LIABLE FOR ANY SPECIAL, INCIDENTAL, PUNITIVE, INDIRECT, OR
CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR
LOSS OF PROFITS OR CONFIDENTIAL OR OTHER INFORMATION, FOR BUSINESS INTERRUPTION,
FOR PERSONAL INJURY, FOR LOSS OF PRIVACY, FOR FAILURE TO MEET ANY DUTY INCLUDING
OF GOOD FAITH OR OF REASONABLE CARE, FOR NEGLIGENCE, AND FOR ANY OTHER PECUNIARY
OR OTHER LOSS WHATSOEVER) ARISING OUT OF OR IN ANY WAY RELATED TO THE USE OF OR
INABILITY TO USE THE SOFTWARE PRODUCT, THE PROVISION OF OR FAILURE TO PROVIDE
SUPPORT OR OTHER SERVICES, INFORMATION, SOFTWARE, AND RELATED CONTENT THROUGH
THE SOFTWARE PRODUCT OR OTHERWISE ARISING OUT OF THE USE OF THE SOFTWARE
PRODUCT, OR OTHERWISE UNDER OR IN CONNECTION WITH ANY PROVISION OF THIS EULA,
EVEN IN THE EVENT OF THE FAULT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY,
BREACH OF CONTRACT, OR BREACH OF WARRANTY OF MICROSOFT OR ANY SUPPLIER, AND EVEN
IF MICROSOFT OR ANY SUPPLIER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.

8.  LIMITATION OF LIABILITY AND REMEDIES. NOTWITHSTANDING ANY DAMAGES THAT YOU
MIGHT INCUR FOR ANY REASON WHATSOEVER (INCLUDING) WITHOUT LIMITATION, ALL
DAMAGES REFERENCED ABOVE AND ALL DIRECT OR GENERAL DAMAGES), THE ENTIRE
LIABILITY OF MICROSOFT AND ANY OF ITS SUPPLIERS UNDER ANY PROVISION OF THIS EULA
AND YOUR EXCLUSIVE REMEDY FOR ALL OF THE FOREGOING SHALL BE LIMITED TO THE
GREATER OF THE AMOUNT ACTUALLY PAID BY YOU FOR THE SOFTWARE PRODUCT OF
U.S.$5.00. THE FOREGOING LIMITATIONS, EXCLUSIONS AND DISCLAIMERS SHALL APPLY TO
THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, EVEN IF ANY REMEDY FAILS ITS
ESSENTIAL PURPOSE.

                                       12

                                                              [MICROSOFT SYMBOL]

                       Microsoft Corporation Confidential
<PAGE>
9.   APPLICABLE LAW. If you acquired this SOFTWARE PRODUCT in the United
States, this EULA is governed by the laws of the State of Washington. If you
acquired this SOFTWARE PRODUCT in Canada, unless expressly prohibited by local
law, this EULA is governed by the laws in force in the Province of Ontario,
Canada; and, in respect of any dispute which may arise hereunder, you consent
to the jurisdiction of the federal and provincial courts sitting in Toronto,
Ontario. If this SOFTWARE PRODUCT was acquired outside the United States, then
local law may apply.

10.  ENTIRE AGREEMENT. This EULA (including any addendum or amendment to this
EULA which is included with the SOFTWARE PRODUCT) is the entire agreement
between you and Microsoft relating to the SOFTWARE PRODUCT and the Support
Services (if any) and it supersedes all prior or contemporaneous oral or
written communications, proposals and representations with respect to the
SOFTWARE PRODUCT or any other subject matter covered by this EULA. To the
extent the terms of any Microsoft policies or programs for Support Services
conflict with the terms of this EULA, the terms of this EULA shall control.

11.  QUESTIONS? Should you have any questions concerning this EULA, or if you
desire to contact Microsoft for any reason, please contact the Microsoft
subsidiary serving your country, or write: Microsoft Sales Information
Center/One Microsoft Way/Redmond, WA 98052-6399.

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                       Microsoft Corporation Confidential

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