Document:

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                                                                   EXHIBIT 10.11

                                    SUBLEASE

        This Sublease is made and entered into as of this 22nd day of September,
2002, by and between RPMC, Inc. ("Sublessor"), located at 24011 Ventura
Boulevard, Calabasas, CA 91302 and Netsol Technologies, Inc., a corporation (the
"Sublessee"), located at 24025 Park Sorrento, Suite 220, Calabasas, CA 91302.

        WHEREAS, Sublessor is a party to and lessee under a lease dated as of
August 1, 2000 (the "Master Lease") with Jeff Cooper and Synergy Group, Inc.
(collectively, the "Lessor") with respect to approximately 1575 square feet of
space (referred to as Suite 101) situated on the ground floor of 24011 Ventura
Blvd., Calabasas, California (the "Subleased Premises"); and

        WHEREAS, Sublessee wishes to lease such Subleased Premises in accordance
with the provisions of this Sublease;

        NOW, THEREFORE, the parties hereto agree that Sublessee shall lease the
Subleased Premises from Sublessor pursuant to the following terms and
conditions:

1.      All of the terms, conditions, covenants, provisions and conditions of
        the Master Lease including Section 12 (a copy of which is attached
        hereto as Attachment "A") are hereby incorporated herein by this
        reference and shall be binding upon and assumed by both parties hereto.
        Except as otherwise noted herein, all rights and obligations of the
        Lessor in such Master Lease shall be assumed and held by Sublessor with
        respect to Sublessee, and all rights and obligations of the Lessee in
        such Master Lease shall be assumed and held by Sublessee with respect to
        Sublessor. Notwithstanding the foregoing, no options granted to
        Sublessor in the Master Lease shall be exercisable by Sublessee and
        nothing herein shall alter the rights and obligations in place in the
        Master Lease between Lessor and Sublessor.

2.      The Term of this Subleasee shall commence on September 23, 2002 (the
        "Commencement Date") and shall continue thereafter on a month-to-month
        basis (from the first day of each calendar month until the last day of
        each calendar month) until terminated in writing by either party in
        accordance with the provisions of this Sublease. At any time after
        February 20, 2003, either party may terminate this Sublease upon at
        least thirty (30) days written notice to the other party.

3.      Rent for the period from September 23, 2002 to September 30, 2002 shall
        be $630.00 and thereafter shall initially be $2362.50 per month.
        Sublessor and Sublessee acknowledge that the monthly rent indicated
        includes all utilities (except telephone and telecommunications
        services), common area expenses and janitorial services for use of the
        Subleased Premises. No alarm system or alarm system monitoring is
        included or will be provided. Provided that Sublessor desires to
        continue the month-to-month tenancy of Sublessee and does not otherwise
        terminate this Sublease in accordance with the provisions of this
        Sublease, then at any time after February 20, 2003, Sublessor may change
        the rate of rent in a sum not to exceed three and one half percent (3
        1/2%) of the then existing rent upon at least thirty (30) days written
        notice to the Sublessee.

4.      Upon execution of this Sublease, Sublessee shall pay Sublessor the sum
        of $17,167.50 which constitutes a pro-rata rent payment for September in
        the amount of $600.00, the sum of $14,175.00 for six month's rent in
        advance and a security deposit of $2362.50. Provided that both parties
        desire to continue the month-to-month tenancy of Sublessee beyond March
        31, 2003, then Sublessee shall pay Sublessor all rent due for each month
        thereafter in advance and by no later than the first day of each such
        month. Failure to make payment

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        in full in advance and by the first day of each month shall constitute a
        breach of this Sublease.

5.      Sublessee shall have the exclusive use of 4 onsite parking spaces, as
        determined by Sublessor to be chosen by Sublessor from the parking
        spaces assigned to it in the Master Lease.

6.      The Subleased Premises are to be used and occupied by the Sublessee for
        general office use only and at no time will be occupied by more than
        eight occupants at any given time. Sublessor will at all times allow
        Sublessor to use the Subleased Premises as an emergency exit for
        Sublessor's upstairs offices and will in no instance block or impede
        access to such emergency escape route.

7.      Sublessee shall at all times keep in force such insurance policies as
        are required in Paragraph 8 of the Master Lease and shall name Lessor
        and Sublessor as additional insureds with respect to such policies.

8.      In the event any legal action is required to enforce the provisions of
        this Sublease, in addition to recovering any other damages with respect
        to the breach of this Sublease, the prevailing party shall be entitled
        to the recovery of reasonable attorney's fees and costs.

9.      Any notices which may need to be given hereunder shall be given in
        writing in accordance with the provisions of the Master Lease and shall
        be directed to the addresses set forth above.

10.     This Sublease shall only be valid and enforceable once the Lessor has
        signed below to indicate it's acceptance of the terms of this Sublease.

11.     Except as provided by the Master Lease, this Sublease constitutes the
        final, complete and exclusive statement of all the terms of agreement
        between Sublessor and Sublessee with respect to the Subleased Premises
        and no prior oral or written agreement (other than the Master Lease)
        shall be a part of or a modification of this Sublease. No change,
        modification or waiver of any of the provisions herein shall be binding
        upon Sublessor or Sublessee unless agreed to by an authorized
        representative of each such party hereafter, in writing.

12.     The individual signing below on behalf of the Sublessee is duly
        authorized by the Sublessee to execute and enter into this Sublease.

        IN WITNESS WHEREOF, the parties have executed this Sublease effective as
of the day and year first above written.

SUBLESSOR:                                   SUBLESSEE:

RPMC, INC.                                   NETSOL TECHNOLOGIES, INC.

By:      /s/Stacy Collins                    By:      /s/ Najeeb Ghauri
        -------------------------                   -------------------------
Name:    Stacy Collins                       Najeeb Ghauri
        -------------------------
        (Please print)                       Title:   CFO
                                                    -------------------------
Title:   Sr. VP Financial Operations
        -----------------------------

Lessor consents to the Sublease set forth above in accordance with the
provisions of the Master Lease. By Lessor's consent to this Sublease, Lessor
does not make any representations as to the adequacy of this Sublease or the
terms between the parties, and the relationship between such parties and Lessor
is expressly, solely and specifically governed by the terms of the Master Lease.

LESSOR:

JEFF COOPER

By: /s/ Jeff Cooper
   -------------------------
   Jeff Cooper

SYNERGY GROUP, INC.

By: /s/ Jeff Cooper
   -------------------------
Name: Jeff Cooper
Title:
      ----------------------<PAGE>
                                                                   Exhibit 4.11

                                WAIVER AGREEMENT

           WAIVER AGREEMENT, dated as of June 26, 2002, among Mercury Air Group,
Inc., a Delaware corporation (the "Company"), J. H. Whitney Mezzanine Fund,
L.P., a Delaware limited partnership ("WMF"), and each of the corporations which
are signatories hereto listed as Guarantors (each a "Guarantor"). All
capitalized terms used herein and not otherwise defined herein shall have the
respective meanings provided such terms in the Purchase Agreement referred to
below.

                              W I T N E S S E T H :
                              - - - - - - - - - - -

           WHEREAS, the Company and WMF are parties to a Securities Purchase
Agreement, dated as of September 10, 1999 (as amended, modified or supplemented
through the date hereof, the "Purchase Agreement"); and

           WHEREAS, the Company has requested that WMF provide the waiver
provided for herein, and WMF has agreed to provide such waiver on the terms and
conditions set forth herein;

           WHEREAS, the Guarantors are parties to the Guaranty.

           NOW, THEREFORE, it is agreed:

           1. Pursuant to Section 9.6 of the Purchase Agreement, the Company has
agreed that it will not dispose any of its property, subject to the exceptions
set forth in such section. The Company has advised WMF that it desires to enter
into a proposed Asset Purchase Agreement between Signature Flight Support
Corporation as Purchaser and the Company as Seller (the "Agreement"), a copy of
which has been provided to WMF, pursuant to which the Company proposes to sell
its fixed base flight operation at Hanscom Field located in Bedford,
Massachusetts (the "Transaction"). Accordingly, the Transaction would be
prohibited under Sections 9.6 of the Purchase Agreement and the Company has
requested that WMF waive the covenants set forth therein to permit the Company
to consummate the Transaction. WMF hereby waives compliance with Sections 9.6 of
the Purchase Agreement and consents to the Company consummating the Transaction,
subject to the satisfaction of each of the conditions set forth below:

           (a) the Transaction is consummated in accordance with the Agreement
in the form delivered to WMF, without amendment, modification or waiver of any
provision without the prior consent of WMF;

           (b) the net proceeds received from the Transaction (i.e., the
purchase price less related expenses) shall be used to pay down the Term Loan
under the Senior Credit Agreement;

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           (c) on or prior to the consummation of the Transaction, the Company
shall have paid and WMF shall have received the full amount of Interest (as
defined in the WMF Note) due on the WMF Note through June 30, 2002;

           (d) No Default or Event of Default under the Senior Credit Agreement
shall exist as of the closing, and no Default or Event of Default thereunder
shall occur by reason of the payment of interest as required under clause (c)
prior to June 30, 2002; and

           (e) the delivery to WMF of original counterpart signature pages of
this Waiver Agreement, duly executed and delivered by WMF, the Company, and each
of the Guarantors.

        2. For purposes of the Guaranty, by their respective signatures below,
each Guarantor hereby consents and agrees to the entering into of this Waiver
Agreement and acknowledges and affirms that the Guaranty (as amended, modified
or supplemented prior to the date hereof) remains in full force and effect in
accordance with its terms on the date hereof and after giving effect to this
Waiver Agreement.

        3. This Waiver Agreement is limited as specified and shall not
constitute a modification, acceptance or waiver of any other provision of the
Purchase Agreement or any of the other Transaction Documents.

        4. In order to induce WMF to enter into this Waiver Agreement, the
Company hereby represents and warrants that no default under any of the
Transaction Documents or Event of Default exists or will exist as of the date
hereof.

        5. This Waiver Agreement may be executed in any number of counterparts
and by the different parties hereto on separate counterparts, each of which
counterparts when executed and delivered shall be an original, but all of which
shall together constitute one and the same instrument. A complete set of
counterparts shall be delivered to WMF.

        6. THIS WAIVER AGREEMENT AND THE RIGHTS AND OBLIGATIONS HEREUNDER SHALL
BE GOVERNED BY, CONSTRUED IN ACCORDANCE WITH, AND ENFORCED UNDER, THE LAW OF THE
STATE OF NEW YORK APPLICABLE TO AGREEMENTS OR INSTRUMENTS ENTERED INTO AND
PERFORMED ENTIRELY WITHIN SUCH STATE.

        7. This Waiver Agreement shall become effective when each of the
Company, the Guarantors and WMF shall have signed a counterpart hereof (whether
the same or different counterparts) and shall have delivered (including by way
of telecopier) the same to WMF at its address listed in the Purchase Agreement.

        8. The Company will pay all expenses of WMF (including fees, charges and
disbursements of counsel) in connection with this Waiver Agreement.

<PAGE>

        9. From and after the effective date of this Waiver Agreement, all
references in the Purchase Agreement and each of the other Transaction Documents
to the Purchase Agreement shall be deemed to be references to the Purchase
Agreement after giving effect to this Waiver Agreement.

                           [INTENTIONALLY LEFT BLANK]

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        IN WITNESS WHEREOF, each of the parties hereto has caused a counterpart
of this Waiver Agreement to be duly executed and delivered as of the date first
above written.

                                            MERCURY AIR GROUP, INC.
                                            (A DELAWARE CORPORATION)

                                            By:
                                               --------------------------------
                                            Name: Joseph A. Czyzyk
                                            Title:  Chief Executive Officer

                                            J. H. WHITNEY MEZZANINE FUND, L.P.

                                            By: Whitney GP, L.L.C.
                                                Its General Partner

                                            By:
                                               --------------------------------
                                               Name:
                                               A Managing Director

GUARANTORS:

MERCFUEL, INC.

By:
   --------------------------------
Name: Joseph A. Czyzyk
Title: Chief Executive Officer

MAYTAG AIRCRAFT CORPORATION

By:
   --------------------------------
Name: Joseph A. Czyzyk
Title:  Chief Executive Officer

MERCURY AIR CARGO, INC.

By:
   --------------------------------

Name: Joseph A. Czyzyk
Title:   Chief Executive Officer

AEG FINANCE CORPORATION

By:
   --------------------------------
Name:  Joseph A. Czyzyk
Title:    Chief Executive Officer

<PAGE>

MERCURY AIR CENTERS, INC.
(F/K/A WOFFORD FLYING SERVICES, INC.)

By:
   --------------------------------
Name:  Joseph A. Czyzyk
Title:   Chief Executive Officer

HERMES AVIATION, INC.

By:
   --------------------------------
Name:  Joseph A. Czyzyk
Title:   Chief Executive Officer

VULCAN AVIATION, INC.

By:
   --------------------------------
Name: Joseph A. Czyzyk
Title:  Chief Executive Officer

JUPITER AIRLINE AUTOMATION SERVICES, INC.
(F/K/A  RPA AIRLINE AUTOMATION SERVICES, INC. )

By:
   --------------------------------
Name Joseph A. Czyzyk
Title:   Chief Executive Officer

MERCURY ACCEPTANCE CORPORATION

By:
   --------------------------------
Name:   Joseph A. Czyzyk
Title:   Chief Executive Officer

EXCEL CARGO, INC.

By:
   --------------------------------
Name:  Joseph A. Czyzyk
Title:   Chief Executive Officer

                      [SIGNATURE PAGE TO WAIVER AGREEMENT]

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