Document:

EXHIBIT 10.15
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                           SOFTWARE PURCHASE AGREEMENT

          AGREEMENT (the "Agreement") is entered into as of this day 5th day of
May, 2005 by and between 62NDS Solutions Ltd., a corporation organized under the
laws of New Zealand, with a principal address of 121 Great South Road, Manurewa,
Auckland (the "Seller"), TouchStone Software Corporation, a Delaware corporation
having its principal place of business at 1538 Turnpike Street, North Andover,
Massachusetts 01845 (the `Buyer"), and the undersigned shareholders of Seller
(collectively, the "Shareholders").

          WHEREAS, Seller desires to sell certain driver update subscription
software products and the intellectual property content embodied therein (the
"Software"), in accordance with the terms and conditions of this Agreement; and

          WHEREAS, Buyer desires to purchase title to the Software, in
accordance with the terms and conditions hereof.

          NOW, THEREFORE, in consideration of the premises and of the mutual
promises herein contained, the parties agree as follows:

                                    ARTICLE I
                           SALE AND PURCHASE OF ASSETS

          1.1 Transfer of Assets. Subject to the terms and provisions hereof,
Buyer shall purchase and acquire from Seller, and Seller shall sell, transfer
and convey to Buyer, all title and rights and obligations of Seller in the
Software, including, without limitation, the following (collectively, the
"Software"):

          (a) all documentation (including internal documentation, documentation
made available to customers and training materials), sales activity reports (to
be delivered to Buyer after the Closing Date) flow-charts, source code notes,
software in source and object code, and descriptive, operating, test or other
types of documentation and memorialized know-how, trade secrets and inventions,
specific to the Software, and all revisions, release levels and versions of the
foregoing, used on or with the Software (hereinafter collectively referred to as
the "Software Documentation");

          (b) all patents and patent applications of Seller only to the extent
that it covers the Software and revisions, and are not applicable to any other
products of the Seller; all trademarks covering the Software or any portion
thereof, including patents, patent applications and trademarks, the foregoing
being more specifically described in the Schedule of Proprietary Rights attached
hereto as Exhibit A and made a part hereof (collectively, the "Proprietary
Rights");

          (c) For those patents and patent applications of Seller covering
related products of Seller, Seller shall grant to Buyer a fully paid, royalty
free, worldwide, irrevocable, perpetual nonexclusive license under any Necessary
Claims (as hereinafter defined) of any issued patent belonging to Seller, or
patent application pending as of the Closing Date belonging to Seller, that is
required for Buyer to fully exercise its rights and enjoyment of the Software,
in the form it

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exists, both operationally and functionally as of the Closing Date. "Necessary
Claims" shall mean those claims of all issued patents and patent applications,
other than design patents and design registrations, throughout the world, in
existence prior to the Closing Date, which are required by Buyer in exercising
its rights and enjoyment of the assignment of title to the Software as delivered
after Closing; and

          (d) All revenues and royalties related to the Software, from whatever
source, generated after the Closing Date (the "Revenues").

          1.2 Encumbrances. The sale and transfer of the Software, shall, at the
time of Closing (as hereinafter defined), be free and clear of all obligations,
security interests, liens, and encumbrances whatsoever.

          1.3 Purchase Price. The purchase price shall be as follows:

          (a) Upon the terms and subject to the conditions of this Agreement,
Seller agrees to sell, convey, assign and transfer, and Buyer agrees to
purchase, the Software, for the aggregate of (i) Three Hundred Fifteen Thousand
(US$315,000.00) Dollars (the "Cash Consideration") and Five Hundred Thousand
(500,000) shares of the Buyer's unregistered common stock (the "Shares", and
with the Cash Consideration, the "Purchase Price").

          (b) The Cash Consideration shall be paid by the Buyer as follows: (i)
Commencing on the date of the Closing, and continuing thereafter for a period of
one (1) year following the Buyer's receipt of the Software (the "Delivery
Date"), the Buyer shall pay to the Seller Ninety Thousand ($90,000.00) Dollars,
to be paid as follows: (a) at the Closing, the Buyer shall pay to the Seller
Twenty Two Thousand Five Hundred ($22,500.00) Dollars, (b) on the Delivery Date,
the Buyer shall pay to the Seller Twenty Two Thousand Five Hundred ($72,500.00)
Dollars, (c) on the sixth (6'h) month anniversary of the Delivery Date, Buyer
shall pay to the Seller Forty Five Thousand ($45,000) Dollars, and (d) on the
one (1) year anniversary of the Delivery Date, the Buyer shall pay to the Seller
Thirty Seven Thousand Five Hundred ($37,500) Dollars, and (ii) thereafter, the
Buyer shall pay to the Seller, in five (5) equal installments of Thirty Seven
Thousand Five Hundred ($37,500.00) Dollars every six (6) months, commencing six
(6) months after the first anniversary of the Delivery Date. For purposes of
this Agreement, each date in which payment is made by the Buyer shall be
referred to as a "Payment Date". (See Schedule A)

          (c) At the Closing, Buyer shall issue to Seller, Five Hundred Thousand
(500,000.00) Shares of Buyer's unregistered common stock, such Shares to be held
and maintained in escrow with a mutually acceptable escrow agent. Subject to the
terms and condition of this Agreement and a Registration Rights Agreement, the
Shares shall be released from escrow on each Payment Date, in equal installments
of Fifty Thousand (50,000.00) Shares (each an "Escrow Fund Release Date") with
the final release six (6) months after final payment date. In connection with
the issuance of receipt of the Shares, Seller shall be required to execute and
deliver to Buyer, Buyer's standard form Lockup Agreement (the "Lockup
Agreement"), well shall provide, among things, that Seller may not sell or
transfer any of the Shares so received by Seller for a period of six (6) months
after receipt of thereof, and then thereafter subject to certain transfer
restrictions imposed on the Seller and the Shares by applicable securities law
and the Securities Exchange Commission.

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          1.4 Closing. The completion of the contemplated transactions (the
"Closing") shall take place on______________________________, 2005, or such
later date as may be mutually agreed upon by the parties (the "Closing Date") at
a time and location to be mutually agreed upon by the parties.

          1.5 No Assumed Liabilities. Notwithstanding any other provision in
this Agreement, Buyer shall not assume, or be deemed to have assumed or
guaranteed, or otherwise be responsible for any liability, obligation or claims
of any nature relating to or arising out of Seller's ownership, use or
exploitation of the Software, whether matured or unmatured, liquidated or
unliquidated, fixed or contingent, known or unknown, or whether arising out of
acts or occurrences of Seller or any other third party prior to, at or
subsequent to the Closing (the "Excluded Liabilities").

          1.6 Access and Information. Seller shall give to Buyer and Buyer's
agents, upon reasonable notice, during normal business hours, from the Closing
Date to a period six (6) months from the Closing Date, access to those books and
records directly relating to the Software and shall use all reasonable efforts
to furnish Buyer, during such period, with information concerning the Software
as Buyer may reasonably request, for no additional consideration.

          1.7 Conduct of Business. Seller warrants and represents to Buyer that,
pending completion of the Closing, unless otherwise agreed in writing by Buyer:
(a) Seller shall not sell, license, contract, commit or otherwise encumber the
Software. (b) Seller shall use all reasonable efforts to preserve the Software
and the intellectual property rights embodied therein, in good order.

                                    ARTICLE H
            REPRESENTATIONS AND WARRANTIES OF SELLER AND SHAREHOLDERS

          Seller and Shareholders represent and warrant to Buyer as follows:

          2.1 Corporate Existence and Authority. Seller is a corporation duly
incorporated, validly existing and in good standing under the laws of the
jurisdiction of its incorporation and has full corporate power and authority to
execute and deliver this Agreement and the agreements contemplated hereby, to
perform its obligations hereunder and thereunder, and to consummate the
transactions contemplated hereby and thereby.

          2.2 Authorization: Binding Effect. The execution and delivery by
Seller of this Agreement and the agreements contemplated thereby, and the
performance by Seller of its obligations hereunder and thereunder, have been
duly and validly authorized by all necessary corporate action on the part of
Seller. This Agreement and the agreements known to Seller contemplated hereby
have been (or prior to the Closing wi11 be) duly and validly executed and
delivered by Seller and, upon the execution and delivery thereof by the Buyer,
wi11 constitute the legal, valid and binding obligations of Seller enforceable
against it in accordance with its terms.

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          2.3 Absence of Conflicts. Seller has all requisite corporate power and
authority to enter into this Agreement and to consummate the transactions
contemplated hereby. The execution and delivery of this Agreement by Seller do
not, and the performance of this Agreement by Seller will not, (i) conflict with
or violate the Certificate of Incorporation or By-laws or other similar
documents, of Seller, (ii) conflict with or violate any law, rule, regulation,
order, judgment or decree applicable to the Seller or by which Seller or any of
its properties is bound or affected; or (iii) breach any agreement relating to
the Software to which Seller is a party.

          2.4 Non-Infringement. The Software does not infringe any patents,
copyrights, trade secrets, trademarks or other proprietary rights of any third
parties and, no intellectual property rights or licenses are required from third
parties to exercise any rights with respect to the Software.

          2.5 Proprietary Rights. The Proprietary Rights are in full force and
effect and there are no liens, claims, proceedings or causes of action which in
any way effect the validity or enforceability of such Proprietary Rights. No
rights or licenses, express or implied, have been granted to any third parties
under the Proprietary Rights.

          2.6 Litigation. As of the Closing Date there is no suit or action, or
legal, administrative, arbitration or other proceeding or governmental
investigation affecting the Software pending, or to the best of the knowledge
and belief of Seller, threatened against Seller which could adversely effect the
Software, or against the Seller that would affect or threaten the validity of
this transaction, or the Seller's right and ability to consummate this
transaction.

          2.7 Good Title. Seller has and shall transfer to Buyer at Closing,
good and marketable title to the Software. Seller represents that the Software
is free and clear of any and all security interests, encumbrances or liens.

          2.8 Representations and Warranties. No representation or warranty by
Seller in this Agreement or any documents provided hereunder contains or wi11
contain any untrue statement or omission or will omit to state any material fact
necessary to make the statements contained herein or therein not misleading. All
representations and warranties made by Seller in this Agreement and any
documents provided hereunder shall be tale and correct, as qualified in such
statements, as of the date of Closing with the same force and effect as if they
had been made on such date.

          2.9 Software Documentation, The Software Documentation represents a
complete set of user guides and reference material necessary to maintain and
support the Software. There are no known errors, malfunctions and/or defects in
the Software; and there is no known unauthorized use of the Software or any
portion thereof by any third party.

          2.10 Rights of Seller in Software. The Software was created solely by
employees, or agents of Seller who are/were under an obligation to assign all
right, title and interest therein to Seller.

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          2.11 Liabilities. Seller represents that, as of the Closing Date, it
is not aware of any liabilities of any nature relating to the Software.

          2.12 Software. The Seller has not received any written notice or claim
challenging the Seller's ownership or use of any of the Software or asserting
that any other Person has any material claim of ownership with respect thereto;
the Seller has not assigned, licensed, transferred or encumbered to or for the
benefit of any person or entity any of its rights in or to the Software or any
component thereof; the Seller has treated the source code of the Software, and
the data associated therewith, as confidential and proprietary business
information, and has taken all reasonable steps to protect the same as trade
secrets of the Seller.

                                   ARTICLE III
                     REPRESENTATIONS AND WARRANTIES OF BUYER

           Buyer represents and warrants to Seller as follows:

           3.1 Corporate Existence and Authority. Buyer is a corporation duly
incorporated, validly existing and in good standing under the laws of the
jurisdiction of its incorporation and has full corporate power and authority to
execute and deliver this Agreement and the agreements contemplated hereby, to
perform its obligations hereunder and thereunder, and to consummate the
transactions contemplated hereby and thereby.

          3.2 Authorization; Binding Effect. The execution and delivery by Buyer
of this Agreement and the agreements contemplated thereby, and the performance
by Buyer of its obligations hereunder and thereunder, have been duly and validly
authorized by all necessary corporate action on the part of Buyer. This
Agreement and the agreements contemplated hereby have been (or prior to the
Closing will be) duly and validly executed and delivered by Buyer and, upon the
execution and delivery thereof by Seller, will constitute the legal, valid and
binding obligations of Buyer enforceable against it in accordance with its
terms.

          3.3 Absence of Conflicts. Buyer has all requisite corporate power and
authority to enter into this Agreement and to consummate the transactions
contemplated hereby. The execution and delivery of this Agreement by Buyer does
not, and the performance of this Agreement by Buyer will not, (i) conflict with
or violate the Certificate of Incorporation or By-laws of Buyer, (ii) conflict
with or violate any law, rule, regulation, order, judgment or decree applicable
to the Buyer or by which Buyer or any of its properties is bound or affected.

          3.4 Representations and Warranties. No representation or warranty by
Buyer in this Agreement or any documents provided hereunder contains or will
contain any untrue statement or omission or will omit to state any material fact
necessary to make the statements contained herein or therein not misleading. All
representations and warranties made by Buyer in this Agreement and any documents
provided hereunder shall be true and correct as of the date of Closing with the
same force and effect as if they had been made as of such date.

          3.5 Litigation. There are no pending, or to the best knowledge and
belief of Buyer, threatened actions or proceedings before any court or
administrative agency or other authority

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which might or will materially or adversely affect Buyer's ability or right to
perform all of Buyer's obligations hereunder.

                                   ARTICLE IV
                              CONDITIONS PRECEDENT

          4.1 Conditions Precedent to Seller's Obligations. The obligations of
Seller to complete the Closing hereunder are, at Seller's option, subject to the
following conditions:

          (a) all representations and warranties by Buyer contained in this
Agreement shall be true in all material respects as of and at the Closing.

          (b} Buyer shall have performed and complied with all agreements, terms
and conditions required by this Agreement to be performed and complied with by
Buyer on or before the Closing, including the payment of that portion of the
Purchase Price due at the Closing.

          4.2 Conditions Precedent to Buyer's Obligations. The obligations of
Buyer to complete the Closing under this Agreement are, at Buyer's option to
waive any of the forgoing, subject to fulfillment by Seller, or otherwise, of
each of the following conditions:

          (a) all representations and warranties of Seller and Shareholders, as
specified and qualified in this Agreement shall be true in all respects as of
and at the Closing with the same effect as if said representations and
warranties had been made on and as of the Closing.

          (b) Seller and Shareholders shall have performed and complied with the
terms and conditions required by this Agreement and to be performed and complied
with by Seller or Shareholders on or before the Closing.

          (c) Seller shall have delivered to Buyer such other instruments and
documents as Buyer shall reasonably request that are necessary for the purpose
of further perfecting the title of Buyer in the Software.

          (d) All such written waivers and consents as may be required or
reasonably requested by Buyer in connection with the sale and assignment of the
Software to Buyer in accordance with the terms of this Agreement.

                                    ARTICLE V
                               CLOSING OBLIGATIONS

          5.1 Seller's Obligations at Closing. At the Closing, Seller shall
execute and deliver to Buyer:

          (a) a bill of sale, assignment, and such other instruments and
documents of conveyance and transfer to Buyer in all of the Software.

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          (b) use all reasonable efforts to secure all appropriate original
instruments of consent or waiver executed by third parties with respect to all
Contract Rights being transferred to Buyer hereunder in order to more fully
effect the transfer of the Contract Rights. (c) possession of the originals of
all Software Documentation and all copies thereof. (d) The Lockup Agreement.

          5.2 Seller's Further Assurances. From time-to-time, at Buyer's
request, whether at or after the Closing and without further consideration,
Seller shall execute and deliver to Buyer such instruments as may reasonably be
required to carry out the intent and purpose of this Agreement, and deliver to
Buyer such other data, papers and information as may be requested by Buyer to
assist Buyer in the use of the Software.

          5.3 Buyer's Obligations at Closing. At Closing, or any mutually agreed
upon time after Closing, Buyer shall (i) execute and deliver to Seller that
portion of the Purchase Price due at Closing, and (ii) deliver the Shares to the
Escrow Agent.

                                   ARTICLE VI
                                 INDEMNIFICATION

          6.1 Agreement To Indemnify. Hold Harmless and Defend

          1.   General Indemnity Obligations.

          (a) Seller shall indemnify and hold Buyer, its affiliates, and their
respective officers, agents, servants, employees, subsidiaries, successors and
permitted assigns, or any of them, harmless from any and all loss, damage,
liability or expense, resulting from:

          (i)  any breach of any written representation, warranty or covenant by
               Seller under this Agreement;

          (ii) damage to all property and injuries, including death, to all
               persons (natural or juridical), arising from any occurrence
               caused by an act or omission of Seller;

          (iii) any taxes, arising out of the fees to be paid to Seller; and

          (iv) any claims arising from Seller's failure to comply with
               applicable laws in New Zealand.

          (b) Seller shall at its sole expense defend any claims, actions, suits
and proceedings, whether in law or equity, brought against Buyer and its
affiliates, and each of their respective officers, agents, servants, employees,
consultants, directors, subsidiaries, successors and assigns, or any of them, in
connection with Seller's obligations under this contract, and shall pay all
expenses, including attorneys fees, and satisfy all judgments that may be
incurred by or rendered against them, or any of them, in connection therewith,
provided Seller is given prompt notice of any such claim, action, suit or
proceeding, except that a failure to notify Seller shall not relieve

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Seller of its obligations under this Contract except to the extent it can
demonstrate damages attributable to such failure. Buyer shall provide, at
Seller's written request and sole expense, such assistance and information as
may be reasonably provided by Buyer. Buyer may, in its discretion, participate
IN the defense of any claims or actions brought under this clause.

          2. Intellectual Property Indemnification.

          (a) Seller shall, at Seller's sole expense, defend Buyer, its
affiliates, and each of their respective officers, agents, servants, employees,
consultants, directors, subsidiaries, successors and assigns, or any of them,
from and against all claims, actions, suits and proceedings, whether in law or
equity, alleging that the use, lease, sale or other disposition of any software
infringes any intellectual property right of any third party, worldwide and
shall indemnify and hold harmless Buyer, its affiliates, and each of their
respective officers, agents, servants, employees, consultants, directors,
subsidiaries, successors and permitted assigns, or any of them, and shall pay
all costs and damages, including attorney's fees and royalties, associated with
the defense and all settlements or awards, provided Seller is given full
authority to resist and defend same, and, at Seller's written request and sole
expense, such assistance and information as may be reasonably provided by Buyer.

          (b} If an injunction or other order is obtained against the
manufacture, preparation, use, lease, sale or other disposition of the Software,
Seller agrees, in addition to indemnifying Buyer and to the other rights Buyer
may have under the Agreement, at Seller's sole expense, to use its best efforts
promptly either to procure rights so that such Software and the use, lease, sale
or other disposition thereof is no longer infringing or to modify or replace
such Software, subject to Buyer's technical approval, so that it is no longer
subject to such order. In the event that neither of the foregoing alternatives
is suitably accomplished, Seller shall be liable to Buyer, its affiliates and
their successors and permitted assigns, or any of them, for all additional costs
and damages resulting from such order.

                                   ARTICLE VII
                                  MISCELLANEOUS

          7.1 Brokerage. Each party hereto represents and warrants to the other
that no broker or finder is entitled to any commission, or similar fee, in
connection with the making or carrying out of this Agreement.

          7.2 Effectiveness. This Agreement supersedes any and all agreements
related to the Software, if any, previously made between the parties relating to
the subject matter hereof and there are no understandings or agreements other
than those included or referenced herein.

          7.3 Notices and Communications. Any notice, payment, request,
instruction, or other document to be delivered hereunder shall be deemed
sufficiently given if in writing and delivered personally or mailed by certified
mail, postage prepaid, if to Buyer addressed to Buyer at the address set forth
above, with one copy to Michael E. Kushnir, Esq., Devine, Millimet & Branch,
P.A., 300 Brickstone Square, 9' Floor, Andover, MA 01810, unless in each such
case Buyer or Seller shall have notified the other in writing of a different
address.

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          7.4 Non-Waiver. No delay or failure on the part of either party in
exercising any right hereunder, and no partial or single exercise thereof, will
constitute a waiver of such right or of any other right hereunder.

          7.5 Headings. Headings in this Agreement are for convenience only and
are not to be used for interpreting or construing any provisions hereof.

          7.6 Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one in the same instrument.

          7.7 Binding Nature. The provisions of this Agreement shall be binding
upon and inure to the benefit of each of the parties hereto and their respective
successors and assigns.

          7.8 Survival of Representations and Warranties. Except as otherwise
expressly provided in this Agreement, the representations and warranties of
Buyer and Seller shall survive the Closing indefinitely.

          7.9 Amendment: Successors and Assigns. This Agreement may be amended
only by an instrument signed by the authorized representatives of the parties
hereto. Neither party may assign any of its rights, obligations, or liabilities
arising hereunder without the prior written consent of the other, except as
otherwise provided herein, and any such assignment or attempted assignment shall
be null and void.

          7.10 Non-competition. Seller and Shareholders agree, for a four (4)
year period after the Closing Date, to not independently develop, directly or
indirectly, or sell or offer to sell, or assist others in the development or
sale of any new products which are similar in functionality and operation as the
Software.

          7.11 Non-Payment. The Buyer acknowledges that in the event of
non-payment of either cash or shares on any prescribed payment date that clause
7.10 is revoked.

              The remainder of this page left intentionally blank.

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     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as an instrument under seal by their authorized representatives as
of the date first above written.

                                  62NDS SOLUTIONS LTD.

                                  By:  /s/ Gavin Longstaffe
                                      ------------------------------------
                                  Name: Gavin Longstaffe
                                        ----------------------------------
                                  Title: Director
                                         ---------------------------------

                                  By: /s/ Phil Young
                                      ------------------------------------
                                  Name: Phil Young
                                        ----------------------------------
                                  Title: Director
                                         ---------------------------------

                                  TOUCHSTONE SOFTWARE CORPORATION

                                  By: /s/ Pierre A. Narath
                                      ------------------------------------
                                      Pierre A. Narath, Chairman of the Board

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                                   SCHEDULE A
                                   ----------

                                PAYMENT SCHEDULE

On Closing                                                     $22,500
On Delivery Date                                               $22,500
On Delivery Date plus 6 months                                 $45,000
On Delivery Date plus 12 months                                $37,500
Each 6 months thereafter (5)                                   $37,500

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                            INVESTMENT REPRESENTATION
                              AND LOCKUP AGREEMENT

Touchstone Software Corp.
1538 Turnpike Street
North Andover, MA 01845

          Re:  Proposed issuance of shares (the "Shares") of Touchstone Software
               Corp. ("TSSW") Common Stock, [$0.01] p value per share (the
               "Common Stock"), to 62NDS Solutions Ltd. ("62NDS") in connection
               with the purchase of certain software by TSSW from 62NDS (the
               "Transaction") pursuant to a Software Purchase Agreement, dated
               as of even date herewith (the "Purchase Agreement")

Gentlemen:

     62NDS (the "Investor"), in connection with the transactions contemplated by
the Purchase Agreement, is being issued, and may in the future be issued, shares
of Common Stock. In connection with such issuance, and as required by the
Purchase Agreement, Investor hereby represents and warrants to you and agrees
with you as follows:

1.   The Investor has received and has had the opportunity to review certain
     information relating to TSSW, including, without limitation, copies of the
     following agreements and exhibits related to the Agreement and the
     following statements and reports filed by TSSW with the Securities and
     Exchange Commission (the "Commission"):

     (a)  Form of Purchase Agreement, including the exhibits and schedules
          attached thereto;

     (b)  TSSW's Annual Report on Form 10-K for the fiscal year ended filed with
          the Commission on______________________________, 200_; and

     (c)  TSSW's Quarterly Report on Form 10-Q for the quarter
          ended_______________ 200_, filed with the Commission on____________,
          200_.

2.   Accredited Investor or Not a "U.S. Person").

     [NOTE: IF INVESTOR IS AN "ACCREDITED INVESTOR", COMPLETE SUBSECTION (A)
BELOW. IF INVESTOR IS NOT A U.S. PERSON, COMPLETE SUBSECTION (B) BELOW).1

     (a) Investor is an "accredited investor" as such term is defined in
Regulation D under the Securities Act of 1933, as amended (the "Securities
Act"), as at the time of the sale of the Securities Investor falls within the
following category (PLEASE INITIAL ONE OR MORE):'

_______________________
1    As used in this Accredited Investor Certification, the term "net worth"
means the excess of total assets over total liabilities. In computing net worth
for the purpose of (5) above, the principal residence of the purchaser must be
valued at cost, including cost of improvements, or at

<PAGE>

          (1) a bank as defined in Section 3(a)(2) of the Act, or a savings and
          loan association or other institution as defined in Section 3(a)(5)(A)
          of the Act, whether acting in its individual or fiduciary capacity; a
          broker or dealer registered pursuant to Section 15 of the 1934 Act; an
          insurance company as defined in Section 2(13) of the Act; an
          investment company registered under the Investment Company Act of 1940
          or a business development company as defined in Section 2(a)(48) of
          that Act; a Small Business Investment Company licensed by the United
          States Small Business Administration under Section 30I(c) or (d) of
          the Small Business Investment Act of 1958; a plan established and
          maintained by a state, its political subdivision, or any agency or
          instrumentality of a state or its political subdivisions, for the
          benefit of its employees, if such plan has total assets in excess of
          $5,000,000; an employee benefit plan within the meaning of the
          Employee Retirement Income Security Act of 1974, if the investment
          decision is made by a plan fiduciary, as defined in Section 3(21) of
          that Act, which is either a bank, savings and loan association,
          insurance company, or registered investment adviser, or if the
          employee benefit plan has total assets in excess of $5,000,000 or, if
          a self-directed plan, with the investment decisions made solely by
          persons that are accredited investors;

          (2) a private business development company as defined in Section
          202(a)(22) of the Investment Adviser Act of 1940;

          (3) an organization described in Section 501(c)(3) of the Internal
          Revenue Code of 1986, as amended, corporation, Massachusetts or
          similar business trust, or partnership, not formed for the specific
          purpose of acquiring the Warrants, with total assets in excess of
          $5,000,000;

          (4) a director or executive officer of TSSW;

          (5) a natural person whose individual net worth, or joint net worth
          with that person's spouse, at the time of such person's purchase of
          the Securities exceeds $1,000,000;

          (6) a natural person who had an individual income in excess of
          $200,000 in each of the two most recent years or joint income with
          that person's spouse in excess of $300,000 in each of those years and
          has a reasonable expectation of reaching the same income level in the
          current year;

_______________________
recently appraised value by an institutional lender making a secured loan, net
of encumbrances. In determining income, a purchaser should add to purchaser's
adjusted gross income any amounts attributable to tax exempt income received,
losses claimed as a limited partner in any limited partnership, deductions
claimed for depletion, contributions to an IRA or KEOGH retirement plan, alimony
payments, and any amount by which income from long-term capital gains has been
reduced in arriving at adjusted gross income.

<PAGE>

          (7) a trust with total assets in excess of $5,000,000, not formed for
          the specific purpose of acquiring the securities offered, whose
          purchase is directed by a sophisticated personas described in Rule
          50(b)(2)(ii) of Regulation D; and

          (8) an entity in which all of the equity owners are accredited
          investors (as defined above).

     (b) By initialing this subsection (b), Investor hereby represents and
warrants to TSSW that Investor is not a U.S. person and as follows:

     1.   The undersigned is not a U.S. person ("U.S. person") as that term is
          defined in Rule 902 (k) of Regulation S of the United States
          Securities Act of 1933, as amended (the "Securities Act") (a copy of
          which definition is attached hereto as Exhibit A) and the Securities
          have not been offered to the undersigned in the United States and at
          the time of the offer the undersigned was physically outside of the
          United States.

     2.   The undersigned is purchasing the Securities for its own account for
          investment purposes only and not with a view to the distribution
          thereof nor on behalf of or for the benefit of any U.S. person and the
          sale and resale of the Securities have not been prearranged with any
          U.S. person. Notwithstanding the foregoing, the undersigned may resell
          the Securities in accordance with Paragraphs 5 and 6 below.

     3.   The undersigned understands that the Securities have not been and wi11
          not be registered under the Securities Act or any United States state
          securities laws and the Securities are being offered and sold pursuant
          to Regulation S under the Securities Act based in part on the truth
          and accuracy of the representations of the undersigned set forth
          herein.

     4.   The undersigned has (a) been furnished with all information which it
          deems necessary to evaluate the merits and risks of the purchase of
          the Securities; (2) had the opportunity to ask questions concerning
          the Securities and TSSW and all questions posed have been answered to
          its satisfaction; (3) been given the opportunity to obtain any
          additional information it deems necessary to verify the accuracy of
          any information obtained concerning the Securities and TSSW; and (4)
          such knowledge and experience in financial and business matters that
          it is able to evaluate the merits and risks of purchasing the
          Securities and to make an informed investment decision relating
          thereto.

     5.   The undersigned agrees that prior to the expiration of a period
          commencing on the date of the issuance of the Securities and ending on
          one (1) year from the issuance of the Securities (the "Distribution
          Period"), the undersigned shall not offer, sell, assign, transfer,
          pledge, encumber or otherwise dispose of the Securities to U.S.
          persons or for the account or benefit of U.S. persons and it will not
          resell the Securities except (1) outside the United States in an
          offshore transaction in compliance with Regulation S under the
          Securities Act; (2) pursuant to an exemption from registration under
          the Securities Act; or (3) pursuant to an effective and current
          registration statement under the Securities Act.

     6.   The undersigned agrees that during the Distribution Period, if the
          undersigned resells any

<PAGE>

          of the Securities the undersigned will send a confirmation or other
          notice to the purchaser of the Securities stating that the purchaser
          is subject to the requirements set forth in Paragraph 5 above.

          (c) In order to meet the conditions for exemption from the
registration requirements under the securities laws of certain jurisdictions,
purchasers who are residents of such jurisdictions may be required to meet
additional suitability requirements.

3.   Engagement of Purchaser Representative. If the Investor has engaged a
     purchaser representative, the Investor has checked the following box and
     indicated the name of such purchaser representative.

     [ ]  ________________________________________________

     The Investor has also attached all disclosure materials provided by such
     purchaser representative to the Investor describing any material
     relationship between the purchaser representative or its affiliates and
     TSSW or its affiliates that then exists, that is mutually understood to be
     contemplated, or that has existed at any time during the previous two
     years, and any compensation received or to be received as a result of such
     relationship.

4.   Opportunity to Investigate. The Investor has had an opportunity for a
     reasonable period of time to ask questions of and receive answers from TSSW
     concerning TSSW, the Shares and the terms and conditions of the
     transactions contemplated by the Purchase Agreement, and the Investor has
     had an opportunity to obtain any additional information the Investor
     considered necessary to verify the accuracy of the information furnished in
     the documents listed in Section I above.

5.   Investment Purpose. All Shares issued in connection with the Transaction
     that are distributed to the Investor will be so acquired by Investor for
     his own account and not on behalf of any other person. The Investor will be
     so acquiring the Shares for investment and not for distribution or with the
     intent to divide his participation with others or of selling, assigning,
     transferring or otherwise disposing of the Shares. It is understood that
     the Investor may make bona fide gifts or distributions (including, if the
     Investor is (i) a partnership, to its partners or (ii) a limited liability
     company, to its members) without consideration, or transfers by operation
     of law, so long as any donee or transferee agrees not to sell, transfer or
     otherwise dispose of the Shares except as provided herein and executes and
     delivers to TSSW a copy of this Agreement.

6.   The Investor understands that:

     (a)  No Registration. The Shares have not been registered by TSSW under the
          Securities Act or any applicable state securities laws (the "State
          Acts"), and, therefore, the Shares cannot be sold or otherwise
          transferred unless either they are registered under the Securities Act
          and any applicable State Acts or an exemption from such registration
          is available. TSSW has not made any representations to me that it will
          register the Shares under the Securities Act or the State Acts.

<PAGE>

     (b)  Required Legends. The certificates evidencing the shares will include
          the legend set forth below, which the investor has read and
          understands:

          "THE SECURITIES REPRESENTED BY THI5 CERTIFICATE HAVE BEEN ACQUIRED FOR
          INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
          1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES OR "BLUE-SKY"
          LAWS. THESE SECURITIES MAY NOT BE SOLD, TRANSFERRED, ASSIGNED,
          PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH
          REGISTRATION OR AN EXEMPTION THEREFROM.

          THESE SECURITIES ARE ALSO SUBJECT TO AN INVESTMENT REPRESENTATION
          AND LOCKUP AGREEMENT WITH TSSW WHICH RESTRICTS THE TRANSFER THEREOF, A
          COPY OF WHICH CAN BE OBTAINED FROM TSSW AT ITS EXECUTIVE OFFICES."

     (c)  Transfer Restrictions. Subject to the provisions of Section 9 herein,
          by accepting the certificates bearing the aforesaid legend, the
          Investor agrees, prior to any transfer of the Shares represented by
          the Certificates, to give written notice to TSSW expressing his wish
          to effect such transfer and describing briefly the proposed transfer.
          Upon receiving such notice, TSSW shall present copies thereof to its
          counsel and the following provisions shall apply:

               (i) if, in the opinion of TSSW's counsel, the proposed transfer
          of such Shares may be effected without registration of such Shares
          under the Securities Act and the State Acts, TSSW shall promptly
          thereafter (but in any event within 5 business days of its receipt of
          the Investor's request) notify the Investor, whereupon the Investor
          shall entitled to transfer such Shares, all in accordance with the
          terms of the notice delivered by the Investor to TSSW and upon such
          further terms and conditions as reasonably shall be required by TSSW
          to ensure compliance with the Securities Act and the State Acts, and
          TSSW will deliver, upon surrender of the certificate evidencing such
          Shares, in exchange therefor, a new certificate not bearing a legend
          of the character set forth above if such counsel reasonably believes
          that such legend is no longer required under the Securities Act and
          the State Acts; and

               (ii) if, in the opinion of TSSW's counsel, the proposed transfer
          of such Shares may not be effected without registration of such Shares
          under the Securities Act or the State Acts, a copy of such opinion
          shall be promptly (but in any event within 5 business days of its
          receipt of the Investor's request) delivered to the Investor, and such
          proposed transfer shall not be made unless such registration is then
          in effect or otherwise subsequently is permitted under the Securities
          Act and the State Acts.

<PAGE>

     (d)  Stop Transfer Orders. TSSW may, from time to time, make stop transfer
          notations in its records and deliver stop transfer instructions to its
          transfer agent to the extent TSSW reasonably determines that the
          Investor is in violation or attempting to violate the Securities Act
          and the State Acts.

7.   Experience and Suitability. The Investor has knowledge and experience in
     financial and business matters, knows of the high degree of risk associated
     with investments generally, is capable of evaluating the merits and risks
     of an investment in the Shares and is able to bear the economic risk of an
     investment in the Shares in the amount contemplated. The Investor has
     adequate means of providing for his current financial needs and
     contingencies and will have no current or anticipated future needs for
     liquidity which would be jeopardized by the investment in the Shares. THE
     INVESTOR CAN AFFORD A COMPLETE LOSS OF HIS INVESTMENT IN THE SHARES.

8.   Substantial Degree of Risk. The Investor understands that an investment in
     the Shares involves a substantial degree or risk. No representation has
     been made regarding the future performance of TSSW or the future market
     value of the Shares.

9.   Lock-Up Agreement. In order to induce TSSW to enter into the Purchase
     Agreement, the Investor hereby agrees that he wi11 not, except with the
     prior written approval of TSSW, (A) engage in a Disposition (as defined
     below) of any of the Shares (as such term is defined in the Purchase
     Agreement) in connection with the Transaction or engage in any other
     transaction which reduces the risks of ownership of any such Shares, for a
     period commencing on the date hereof and continuing thereafter for a period
     of one (1) year (the "Lockup Period"). A "DISPOSITION" shall mean to
     directly or indirectly offer to sell, contract to sell or otherwise sell or
     dispose of any of the Shares or enter into any other transaction which is
     designed to, or might reasonably be expected to, result in the disposition
     (whether by actual disposition or effective economic disposition due to
     cash settlement or otherwise) of any right, title or interest in any of the
     Shares including, without limitation, by filing (or participating in the
     filing of) a registration statement with the Commission in respect of, or
     establishing or increasing a put equivalent position within the meaning of
     Section 16 of the Securities Exchange Act of 1934, as amended, and the
     rules and regulations of the Commission promulgated thereunder. The
     Investor agrees and consents to the entry of stop transfer instructions
     with TSSW's transfer agent against the transfer of the Shares held by the
     Investor except in compliance with the foregoing restrictions.
     Notwithstanding anything contained herein to the contrary, the provisions
     of this paragraph shall not be effective from and as of the acquisition of
     all or substantially all of the outstanding capital stock or assets of TSSW
     by any other person, whether by merger, operation of law, stock purchase,
     asset purchase or any other business combination with respect to TSSW.
     Notwithstanding anything contained herein to the contrary, the provisions
     of this paragraph shall not be affected in any manner by the effectiveness
     of any registration statement under the Securities Act covering all or any
     part of the Shares as to which this paragraph is then applicable.

10.  Indemnification. The Investor recognizes that the issuance of Shares wi11
     be based to a material extent upon his representations, warranties and
     agreements set forth in this Agreement, and the Investor agrees on demand
     to indemnify and hold harmless TSSW

<PAGE>

     from and against any and all loss, damage, liability or expense, including
     costs and reasonable attorneys' fees, to which TSSW may be put or which
     TSSW may incur by reason of, or in connection with, any misrepresentation
     of any material fact the Investor has made in this Agreement, any breach by
     the Investor of any agreement contained in this Agreement, or arising out
     of the Investor's sale or distribution of any Shares in violation of the
     Securities Act, the State Acts or this Agreement. All representations,
     warranties and covenants and the indemnification contained in this
     Agreement shall survive this Agreement and the Investor's admission as a
     stockholder of TSSW.

11. Miscellaneous.

     (a)  Notices. All notices, requests, consents and other communications
          hereunder shall be in writing, shall be addressed to the receiving
          party's address set forth below or to such other address as a party
          may designate by notice hereunder, and shall be either (i) delivered
          by hand, (ii) made by telecopy or facsimile transmission, (iii) sent
          by overnight courier, or (iv) sent by registered mail, return receipt
          requested, postage prepaid.

               if to the undersigned, to the address set forth on the signature
               page hereto.

               If to TSSW, to the address set forth at the top of this
               Agreement.

          All notices, requests, consents and other communications hereunder
          shall be deemed to have been given either (i) if by hand, at the time
          of the delivery thereof to the receiving party at the address of such
          party set forth above, (ii) if made by telecopy or facsimile
          transmission, at the time that receipt thereof has been acknowledged
          by electronic confirmation or otherwise, (iii) if sent by overnight
          courier, on the next business day following the day such notice is
          delivered to the courier service, or (iv) if sent by registered mail,
          on the 5th business day following the any such mailing is made.

     (b)  Entire Agreement. This Agreement, together with the Purchase Agreement
          and all of the agreements incorporated by reference therein, embodies
          the entire agreement and understanding between the parties hereto with
          respect to the subject matter hereof and supersedes all prior oral or
          written agreements and understandings relating to the subject matter
          hereof. No statement, representation, warranty, covenant or agreement
          of any kind not expressly set forth in this Agreement shall affect, or
          be used to interpret, change or restrict, the express terms and
          provisions of this Agreement.

     (c)  Further Assurances. Within ten (10) days after receipt of a written
          request from TSSW, Investor agrees to provide such information and to
          execute and deliver such documents as reasonably may be necessary to
          comply with any and all laws and ordinances to which TSSW is subject.

     (d)  Modifications and Amendments. The terms and provisions of this
          Agreement may be modified or amended only by written agreement
          executed by the parties hereto.

<PAGE>

     (e)  Waivers and Consents. The terms and provisions of this Agreement may
          be waived, or consent for the departure therefrom granted, only by
          written document executed by the party entitled to the benefits of
          such terms or provisions. No such waiver or consent shall be deemed to
          be or shall constitute a waiver or consent with respect to any other
          terms or provisions of this Agreement, whether or not similar. Each
          such waiver or consent shall be effective only in the specific
          instance and for the purpose for which it was given, and shall not
          constitute a continuing waiver or consent.

     (f)  Assignment. This Agreement may not be transferred or assigned without
          the prior written consent of TSSW and any such transfer or assignment
          shall be made only in accordance with applicable laws and any such
          consent.

     (g)  Benefit. All statements, representations, warranties, covenants and
          agreements in this Agreement shall be binding on the pages hereto and
          shall inure to the benefit of the respective successors and permitted
          assigns of each party hereto. Nothing in this Agreement shall be
          construed to create any rights or obligations except among the parties
          hereto, and no person or entity shall be regarded as a third-party
          beneficiary of this Agreement.

     (h)  Governing Law. This Agreement and the rights and obligations of the
          parties hereunder shall be construed in accordance with and governed
          by the law of the Commonwealth of Massachusetts, without giving effect
          to the conflict of law principles thereof.

     (i)  Severability. In the event that any court of competent jurisdiction
          shall determine that any provision, or any portion thereof, contained
          in this Agreement shall be unenforceable in any respect, then such
          provision shall be deemed limited to the extent that such court deems
          it enforceable, and as so limited shall remain in flail force and
          effect. In the event that such court shall deem any such provision, or
          portion thereof, wholly unenforceable, the remaining provisions of
          this Agreement shall nevertheless remain in full force and effect.

     (j)  Interpretation. The parties hereto acknowledge and agree that: (i)
          each party and its counsel have reviewed the terms and provisions of
          this Agreement; (ii) the rule of construction to the effect that any
          ambiguities are resolved against the drafting party shall not be
          employed in the interpretation of this Agreement; and (iii) the terms
          and provisions of this Agreement shall be construed fairly as to the
          parties hereto and not in favor of or against any party, regardless of
          which party was generally responsible for the preparation of this
          Agreement. Whenever used herein, the singular number shall include the
          plural, the plural shall include the singular, the use of any gender
          shall include all persons.

     (k)  Headings and Captions. The headings and captions of the various
          subdivisions of this Agreement are for convenience of reference only
          and shall in no way modify, or affect the meaning or construction of
          any of the terms or provisions hereof.

<PAGE>

     (1)  Enforcement. Each of the parties hereto acknowledges and agrees that
          the rights acquired by each party hereunder are unique and that
          irreparable damage would occur in the event that any of the provisions
          of this Agreement to be performed by the other party were not
          performed in accordance with their specific terms or were otherwise
          breached. Accordingly, in addition to any other remedy to which the
          parties hereto are entitled at law or in equity, each party hereto
          shall be entitled to an injunction or injunctions to prevent breaches
          of this Agreement by the other party and to enforce specifically the
          terms and provisions hereof in any federal or state court to which the
          parties have agreed hereunder to submit to jurisdiction.

     (m)  No Waiver of Rights. Powers and Remedies. No failure or delay by a
          party hereto in exercising any right, power or remedy under this
          Agreement, and no course of dealing between the parties hereto, shall
          operate as a waiver of any such right, power or remedy of the party.
          No single or partial exercise of any right, power or remedy under this
          Agreement by a party hereto, nor any abandonment or discontinuance of
          steps to enforce any such right, power or remedy, shall preclude such
          party from any other or further exercise thereof or the exercise of
          any other right, power or remedy hereunder. The election of any remedy
          by a party hereto shall not constitute a waiver of the right of such
          party to pursue other available remedies. No notice to or demand on a
          party not expressly required under this Agreement shall entitle the
          party receiving such notice or demand to any other or further notice
          or demand in similar or other circumstances or constitute a waiver of
          the rights of the party giving such notice or demand to any other or
          further action in any circumstances without such notice or demand.

     (n)  Counterparts. This Agreement may be executed in one or more
          counterparts, and by different parties hereto on separate
          counterparts, each of which shall be deemed an original, but al1 of
          which together shall constitute one and the same instrument.

12. UNDER PENALTIES OF PERJURY, THE UNDERSIGNED CERTIFIES THAT:

     (a)  IT HAS CONSIDERED AND FULLY UNDERSTANDS ALL OF THE RISKS INVOLVED IN
          MAKING AN INVESTMENT 1N THE SECURITIES OF TSSW.

     (b)  THE REPRESENTATIONS AND RESPONSES PROVIDED HEREIN BY INVESTOR ARE TRUE
          AND CORRECT, AND INVESTOR ACKNOWLEDGES THAT TSSW CAN RELY ON SUCH
          REPRESENTATIONS AND RESPONSES IN CONNECTION WITH THE ISSUANCE OF THE
          SHARES TO THE UNDERSIGNED IN CONNECTION WITH THE TRANSACTION.

     IN WITNESS WHEREOF, the undersigned have executed this Agreement on this _
day of April, 2005.

<PAGE>

                                  62NDS Solutions, LTD.

/s/ Phil Young                    By: /s/ Gavin Longstaffe
                                      ----------------------------------
Phil Young                        Name: Gavin Longstaffe
                                        --------------------------------
Director                          Title: Director
                                         -------------------------------

5/MAY/2005                        DATE: 5/MAY/2005
                                        --------------------------------

The foregoing is hereby accepted.

                                  TOUCHSTONE SOFTWARE CORP.

                                  By: /s/ Pierre A. Narath
                                      ----------------------------------
                                  Name: Pierre A. Narath
                                        --------------------------------
                                  Title: Chairman
                                         -------------------------------

                                  DATE: 6/29/2005
                                        --------------------------------

<PAGE>

                                    EXHIBIT A

     For your information, U.S. Person is defined under Regulation S of the 1933
Act as follows:

     1.   Any natural person resident in the United States;

     2.   Any partnership or corporation organized or incorporated under the
          laws of the United States;

     3.   Any estate of which any executor or administrator is a U.S. person;

     4.   Any trust of which any trustee is a U.S. person;

     5.   Any agency or branch of a foreign entity located in the United States;

     6.   Any non-discretionary account or similar account (other than an estate
          or trust) held by a dealer or other fiduciary for the benefit or
          account of a U.S. person;

     7.   Any discretionary account or similar account (other than an estate or
          trust) held by a dealer or other fiduciary organized, incorporated, or
          (if an individual) resident in the United States; or

     8.   Any partnership or corporation if:

          (a)  organized or incorporated under the laws of any foreign
               jurisdiction; and

          (b}  formed by a U.S. person principally for the purpose of investing
               in securities not registered under the 1933 Act, unless it is
               organized or incorporated, and owned, by accredited investors (as
               defined in Rule 501(a)) who are not natural persons, estates or
               trusts.

     The following are not deemed to be "U.S. persons" under Regulation S of the
1933 Act:

     1.   Any discretionary account or similar account (other than an estate or
          trust) held for the benefit or account of a non-U.S. person by a
          dealer or other professional fiduciary organized, incorporated, or (if
          an individual) resident in the United States;

     2.   Any estate of which any professional fiduciary acting as executor or
          administrator is a U.S. person if:

          a)   an executor or administrator of the estate who is not a U.S.
               person has sole or shared investment discretion with respect to
               the assets of the estate; and

          b)   the estate is governed by foreign law;

     3.   Any trust of which any professional fiduciary acting as trustee is a
          U.S. person, if a trustee who is not a U.S. person has sole or shared
          investment discretion with respect to the trust assets, and no
          beneficiary of the trust (and no settlor if the trust is revocable) is
          a U.S. person;

     4.   An employee benefit plan established and administered in accordance
          with the law of a country other than the United States and customary
          practices and documentation of such country;

     5.   Any agency or branch of a U.S. person located outside the United
          States if: (a) the agency or branch operates for valid business
          reasons; and

<PAGE>

          {b)  the agency or branch is engaged in the business of insurance or
               banking and is subject to substantive insurance or banking
               regulation, respectively, in the jurisdiction where located; and

     6.   The International Monetary Fund, the International Bank for
          Reconstruction and Development, the Inter-American Development Bank,
          the Asian Development Bank, the African Development Bank, the United
          Nations, and their agencies, affiliates and pension plans, and any
          other similar international organizations, their agencies, affiliates
          and pension plans.

<PAGE>

                           BILL OF SALE AND ASSIGNMENT
                           ---------------------------

          This BILL OF SALE AND ASSIGNMENT dated May 05, 2005, from 62NDS
SOLUTIONS LTD., a corporation organized under the laws of New Zealand having a
principal address of 121 Great South Road, Manurewa, Auckland (the "Seller"),
to TOUCHSTONE SOFTWARE CORPORATION, a Delaware corporation having a principal
address of 1538 Turnpike Street, North Andover, Massachusetts (the "Buyer").

                                   WITNESSETH:
                                   ----------

          WHEREAS, pursuant to a Software Purchase Agreement (the "Software
Purchase Agreement"), dated as of the 5 day of May 2005, by and among the Buyer,
the Seller and the shareholders of Seller (the "Shareholders"), Seller has
agreed to sell, transfer, convey and assign to Buyer, and Buyer has agreed to
purchase and acquire the Software of Seller, as defined in the Software Purchase
Agreement;

          NOW, THEREFORE, for the consideration set forth in the Software
Purchase Agreement, the receipt and sufficiency of which is hereby acknowledged:

          1. Seller hereby grants, sells, conveys, assigns, transfers, sets over
and delivers to Buyer all of its rights, title and interest in and to the
Software as defined in the Software Purchase Agreement, free and clear of all
claims, liens, mortgages, pledges encumbrances, charges and security interests
of every kind.

          TO HAVE AND TO HOLD all and singular the said Software hereby
conveyed, transferred or assigned or intended so to be, unto Buyer, its
successors and assigns, to and for its own use forever.

          2. Seller does hereby constitute and appoint Buyer, its successors and
assigns, the true and lawful attorney or attorneys of Seller, with full power of
substitution, for it and in its name, place and stead or otherwise, but on
behalf of and for the benefit of Buyer, its successors and assigns with respect
to the Software, to demand and receive from time to time any and all property
and assets, real, personal and mixed, tangible and intangible, hereby sold,
conveyed and transferred and delivered or intended so to be, and to give
receipts and releases for and in respect of the same and any part thereof; and
from time to time to institute and prosecute in the name of Seller or otherwise,
for the benefit of Buyer, its successors and assigns, any and all proceedings at
law, in equity or otherwise, which Buyer, its successors or assigns, may deem
proper in order to collect, assert or enforce any claims, rights or title of any
kind in and to the rights, assets and properties hereby sold, assigned,
transferred and delivered, or intended so to be, and to defend and compromise
any and all actions, suits or proceedings in respect of any of said rights,
assets and properties, and to do any and all such acts and things in relation
thereto as Buyer, its successors or assigns, shall deem advisable; Seller hereby
declaring that the appointment hereby made and the powers hereby granted are
coupled with an interest and are and shall be irrevocable and perpetual and
shall not be terminated by any act of Seller or by operation of law, or by the
occurrence of any other event or in any other manner or for any other reason.

<PAGE>

          3. With respect to the Software, Seller warrants that it has good
title free and clear of all encumbrances, liens, charges or restrictions of any
kind or character, and has full power and legal right and authority to assign
and transfer such title and does hereby covenant and agree to warrant and defend
its legal title on the date hereof to the Software from and against all claims
and demands whatsoever, at law or equity, of all persons.

          4. Seller covenants and agrees that it will execute, deliver and
acknowledge (or cause to be executed, acknowledged and delivered) from time to
time at the request of Buyer and without further consideration, all such
instruments of conveyance, transfer, assignment and further assurance and
perform or cause to be performed all such other acts as may reasonably be
required in order to transfer to or further perfect in Buyer the title of Seller
to the Software.

          5. Notwithstanding the foregoing, it is hereby expressly acknowledged
and agreed that Seller is not selling, assigning, transferring or conveying to
Buyer and that Buyer is not acquiring, any asset other than the Software, as
defined in the Software Purchase Agreement.

          6. Any individual, partnership, corporation or other entity may rely
without further inquiry upon the powers and rights herein granted to Buyer and
upon any notarization, certification, verification, affidavit or jurat by any
notary public of any state relating to the authorization, execution and delivery
of this Bill of Sale and Assignment or to the authenticity of any copy,
conformed or otherwise, hereof.

          7. This Bill of Sale and Assignment is executed by, and shall be
binding upon, Seller and its successors and assigns, and shall inure to the
benefit of Buyer and its successors and assigns.

          8. Terms used herein shall have the same meanings that such terms have
when used in the Software Purchase Agreement unless the context clearly requires
otherwise. In the event of any inconsistency between the provisions hereof and
the provisions of the Software Purchase Agreement, the provisions of the
Software Purchase Agreement shall be controlling.

          9. This Bill of Sale and Assignment shall be effective for all
purposes as of the date hereof.

          10. This Bill of Sale and Assignment shall be governed by and
construed and enforced in accordance with the laws of the Commonwealth of
Massachusetts.

          IN WITNESS WHEREOF, Seller has caused this Bill of Sale and Assignment
to be duly executed as an instrument under seal on the day and year first above
set forth.

/s/ Phil Young                         /s/ Gavin Longstaffe
                                       5/5/05

                                       -2-EXHIBIT 10.1
                                                                    ------------

                               SUTRON CORPORATION
                   AMENDED AND RESTATED 1996 STOCK OPTION PLAN

         1.     Purpose. The Plan is intended to promote the interests of the
Company by providing a method whereby officers and key employees who have
provided and are expected in the future to provide valuable services to the
Company may be given the opportunity to acquire an ownership interest in the
Company and benefit from increases in the value of the Stock.

         The purpose of the Plan is to set forth terms and conditions applicable
to the Options granted hereunder and to the shares of Stock issuable upon
exercise of such Options.

         Options granted pursuant to the Plan shall be Non-Qualified Stock
Options. The proceeds received by the Company from the sale of Stock pursuant to
exercise of the Options shall be used for general corporate purposes.

         2.     Definitions. In addition to terms defined elsewhere in the Plan,
the following terms are defined as set forth below:

                2.1     "Board" means the Board of Directors of the Company.

                2.2     "Change of Control" means a transaction or event in
which, after the effective date of the Plan, (a) the Company shall merge or
consolidate with any other corporation and shall not be the surviving
corporation; (b) the Company shall transfer all or substantially all of its
assets to another person; or (c) any person shall have become the beneficial
owner of more than fifty percent (50%) of the voting power of the Company's
outstanding voting securities.

                2.3     "Code" means the Internal Revenue Code of 1986, as
amended from time to time. References to any provision of the Code include
regulations promulgated thereunder and successor provisions and regulations
thereto.

                2.4     "Company" means Sutron Corporation, a Virginia
corporation.

                2.5     "Date of Grant" means, with respect to any Option, the
date on which an Option was granted as specified in the corresponding Option
Agreement.

                2.6     "Disability" shall mean the inability of an individual
to fulfill his or her responsibilities to the Company by reason of any medically
determinable physical or mental impairment and shall be determined by the Board
on the basis of such medical evidence as the Board deems warranted under the
circumstances.

                2.7     "Exchange Act" means the Securities Exchange Act of
1934, as amended.

<PAGE>

References to any provision of the Exchange Act include rules promulgated
thereunder and successor provisions and rules thereto.

                2.8     "Exercise Price" means, for each share of Stock subject
to an Option, the Fair Market Value, determined as of the date of grant of such
Option.

                2.9     "Fair Market Value" of the Stock means, as of any given
date, the closing sales price of a share of Stock reported on the NASDAQ
over-the-counter market for such date or, if no such closing price was reported
for such date, for the most recent trading day prior to such date for which such
closing price was reported.

                2.10    "Non-Qualified Stock Option" means a stock option that
is not intended to meet the requirements of Section 422 of the Code.

                2.11    "Option" means the right granted under this Plan to
purchase a specified number of shares of Stock, at the specified exercise price
and for a specified period of time under the Plan. All Options will be
Non-qualified Stock Options.

                2.12    "Option Agreement" means a written agreement between the
Company and an Optionee evidencing the terms and conditions of the grant of an
Option. Each Option Agreement shall be subject to the terms and conditions of
the Plan.

                2.13    "Optionee" means the officer or key employee of the
Company who is granted an Option under the Plan.

                2.14    "Plan" means this Sutron Corporation 1996 Stock Option
Plan.

                2.15    "Rule 16b-3" means Rule 16b-3 promulgated under the
Exchange Act or any successor to such rule.

                2.16    "Stock" means the Common Stock, $0.01 par value per
share, of the Company.

         3.     Shares Available under the Plan.

                3.1     Maximum Shares Available. The Stock issuable pursuant to
the exercise of Options granted under the Plan shall consist of shares of the
Company's authorized but unissued or reacquired Stock. The maximum number of
Shares which may be issued over the term of the Plan shall be two hundred sixty
thousand (260,000), subject to adjustment from time to time in accordance with
the provisions of Section 3.2 hereof. Shares subject to outstanding Options
shall be available for subsequent issuance under the Plan to the extent that
such Options expire or terminate for any reason prior to their exercise in full.

                3.2     Adjustments Upon Certain Events. In the event that any
change is made to

                                       2
<PAGE>

the Stock issuable under the Plan by reason of stock split, stock dividend,
recapitalization, combination of shares, exchange of shares, repurchase, merger,
consolidation, spin-off or other change affecting the outstanding Stock as a
class, the Board shall make appropriate adjustments to the maximum number of
shares and/or class of shares, and the number of shares and/or class of shares
and the exercise price per share in effect under each outstanding Option, in
order to prevent the dilution or enlargement of benefits thereunder. Any
adjustments made by the Board pursuant to this Section 3.2 shall be final,
binding and conclusive. Neither the existence nor the terms of this Plan, nor
the grant of any Options hereunder, shall affect the right or power of the
Company to make any adjustments, reorganizations, reclassifications or other
changes to its capital structure or to merge, consolidate, dissolve, liquidate,
sell or transfer any or all of its assets or otherwise change its business
structure.

                Except as expressly provided above, the issuance by the Company
of shares of stock of any class, for cash or property, or for labor or services,
either upon direct sale or upon the exercise of rights, warrants or options to
subscribe therefor, or upon conversions of shares or obligations of the Company
convertible into such shares or other securities, shall not affect the number,
class or exercise price of shares of Stock then subject to an Option, and no
adjustment shall be made by reason thereof.

         4.     Administration of the Plan. The Plan shall be administered by
the Board. All actions taken by the Board shall be taken by a majority of its
members. The Board shall have the full power and authority, subject to the
specific provisions of the Plan, to establish such rules and regulations as it
may deem appropriate for proper administration of the Plan, and to make such
determinations under, and issue such interpretations of, the Plan as it may deem
necessary or advisable. Decisions of the Board shall be final and binding on all
parties who have an interest in the Plan or any outstanding Option. Any action
may be taken by a written instrument signed by a majority of the members of the
Board.

                The Board may designate any officer of the Company to assist it
in the administration of the Plan and may grant authority to any such officer to
execute agreements or other documents and otherwise take action on behalf of the
Board. The Board may employ legal counsel and other professional advisors as it
may deem desirable for the administration of the Plan and may rely on any
opinion received from such counsel or advisors.

         5.     Eligibility. Officers, directors and key employee of the
Company, as selected by the Board, are eligible to participate in the Plan.

         6.     Options.

                6.1     Grants of Options. The Board, in its sole discretion,
will designate each individual to whom an Option is to be granted and will
specify the number of shares covered by such Option. In making such awards, the
Board may consider, among other factors, the recommendations of the Company's
President and Chief Executive Officer.

                                       3
<PAGE>

                6.2     Option Exercise Price. The exercise price per share for
Stock that may be purchased upon the exercise of an Option shall be determined
by the Board on the date of grant of such Option and shall be equal to Fair
Market Value on the date of grant of the Option.

                6.3     Option Exercise Period. The period in which an Option
may be exercised shall be determined by the Board on the date of grant of the
Option, except that no Option shall be exercisable after the expiration of ten
(10) years from the date of grant of the Option. In the event of (a) the
termination of the Optionee's employment with the Company for reasons other than
a Disability; (b) the termination of the Optionee's employment with the Company
due to a Disability; or (c) the death of the Optionee, the provisions of Section
7 hereof will govern the Option Exercise Period.

                6.4     Vesting of Option. The Board, in its sole discretion,
will designate the vesting schedule of each individual Option that is to be
granted; provided, however, that an Option will become immediately exercisable
in full at the time of a Change of Control of the Company.

                6.5     Restrictions on Transfer of Option. Any Option granted
under the Plan shall be exercisable during the Optionee's lifetime only by the
Optionee and shall not be assignable or transferable other than by will or by
the laws of descent and distribution following the Optionee's death.

                6.6     Manner of Exercise. Subject to the provisions of the
Plan and the applicable Option Agreement, an Option may be exercised in whole at
any time and in part from time to time at such times and upon such other terms
and conditions as the Board shall determine. A partial exercise of an Option
shall not affect the right to exercise the Option from time to time in
accordance with the Plan and the applicable Option Agreement with respect to the
remaining shares of Stock subject to the Option. In order to exercise an Option,
an Optionee must give notice of exercise to the Secretary of the Company,
specifying the Option to be exercised, the number of shares of Stock to be
purchased pursuant to such exercise, and must be accompanied by payment in full
for such shares. Payment shall be made in cash or check payable to the Company
for the full amount of the purchase price, unless otherwise provided in the
Option Agreement.

         7.     Effect of Termination of Employment, Disability or Death. Except
to the extent otherwise provided pursuant to Section 7.4 below, the following
provisions shall govern the exercise of any Options held by an Optionee at the
time the Optionee ceases to be an employee of the Company, suffers a Disability,
or dies.

                7.1     Termination of Employment. In the event that the
Optionee ceases to be an employee of the Company for any reason other than
Disability or death, then the period during which each outstanding Option held
by such Optionee is to remain exercisable shall be limited to

                                       4
<PAGE>

the ninety (90) day period following the date of termination of employment.
Under no circumstances, however, shall any such Option be exercisable after the
specified expiration date of the Option term. Any outstanding Option may not be
exercised in the aggregate for more than the number of vested shares for which
the Option is exercisable on the date of the termination of employment, and such
Option shall terminate and cease to be outstanding with respect to any Option
shares for which the Option is not at that time exercisable or in which the
Optionee is not otherwise at that time vested.

                7.2     Disability. In the event that the Optionee ceases to be
an employee of the Company by reason of a Disability, then the period during
which each outstanding Option held by such Optionee is to remain exercisable
shall be limited to a period of one (1) year following the date of termination
of employment due to Disability. Under no circumstances, however, shall any such
Option be exercisable after the specified expiration date of the Option term as
set forth in the Option Agreement. Any outstanding Option may not be exercised
in the aggregate for more than the number of vested shares for which the Option
is exercisable on the date of the termination of employment due to Disability,
and such Option shall terminate and cease to be outstanding with respect to any
Option shares for which the Option is not at that time exercisable or in which
the Optionee is not otherwise at that time vested.

                7.3     Death. In the event that the Optionee dies while holding
one or more outstanding Options, then the period during which each outstanding
Option held by such Optionee is to remain exercisable shall be limited to a
period of one (1) year following the date of the Optionee's death. During such
limited period, the Option may be exercised by the personal representative of
the Optionee's estate or by the person or persons to whom the option is
transferred pursuant to the Optionee's will or in accordance with the laws of
descent and distribution. Under no circumstances, however, shall any such Option
be exercisable after the specified expiration date of the Option term. Any
outstanding Option may not be exercised in the aggregate for more than the
number of vested shares for which the Option is exercisable on the date of the
death of the Optionee, and such Option shall terminate and cease to be
outstanding with respect to any Option shares for which the Option is not at
that time exercisable or in which the Optionee is not otherwise at that time
vested.

                7.4     Extensions. The Board shall have full power and
authority to extend the period of time for which the Option is to remain
exercisable under the circumstances set forth in Sections 7.1, 7.2 and 7.3 above
to such greater period of time as the Board shall deem appropriate; provided,
however, that in no event shall such Option be exercisable after the specified
expiration date of the Option as set forth in the Option Agreement.

         8.     Changes and Amendments to the Plan. The Board shall have
complete and exclusive power and authority to amend or modify the Plan in any
respect, provided, however, that no such amendment or modification shall
adversely affect the rights and obligations of an Optionee with respect to any
Options at the time outstanding under the Plan without the consent of such
Optionee. Any such amendment or modification will be subject to the approval of
the

                                       5
<PAGE>

Company's shareholders at or before the next annual meeting of shareholders for
which the record date is after the date of such Board action if such shareholder
approval is required by any federal or state law or regulation or the rules of
any stock exchange or automated quotation system. The Board, in its sole
discretion, may also seek shareholder approval of amendments or modifications to
the Plan that are not required to be submitted for shareholder approval under
any federal or state law or regulation or the rules of any stock exchange or
automated quotation system, if it deems such shareholder approval to be
desirable.

         9.     General Provisions.

                9.1     Agreements. The grant of any Option shall be effected by
the execution of an Option Agreement by and between the Company and each
Optionee. Each Option Agreement shall be a binding contract between the Company
and the Optionee, shall incorporate the terms of the Plan, and shall specify the
particular terms and condition of the Option, including the number of shares of
Stock subject to the Option.

                9.2     Compliance with Laws and Obligations. The implementation
of the Plan, the granting of Options under the Plan, and the issuance of Stock
upon the exercise of any Option shall be subject to the Company's procurement of
all required regulatory approvals relating to the Plan, the Options and shares
of Stock issuable pursuant to exercise of such Options. Certificates
representing shares of Stock issued pursuant to the exercise of Options granted
under the Plan will be subject to such stop-transfer orders and other
restrictions as may be applicable under federal and state laws, regulations and
rules, or the requirements of any securities exchange or automated quotation
system, including the requirement that a legend or legends be placed on such
certificates.

         The Company shall not be required to sell or issue shares of its Stock
under any Option if the sale or issuance would constitute a violation by the
Optionee or the Company of any provisions of any state or federal law, rule or
regulation. In addition, in connection with the Securities Act of 1933, as
amended, upon exercise of any Option, the Company shall not be required to issue
such shares of Stock unless the Company has received evidence satisfactory to it
to the effect that the Optionee will not transfer such shares except pursuant to
a registration statement in effect under the Securities Act of 1933, or unless
an opinion of counsel to the Company has been received to the effect that such
registration is not required.

         The Corporation may, but shall in no event be obligated to, register
any securities covered hereby pursuant to the Securities Act of 1933; and in the
event any shares are so registered, the Company may, in its discretion, remove
any legend on certificates representing such shares of Stock. The Company shall
not be obligated to take any other affirmative action in order to cause the
exercise of the Option or the issuance of shares of Stock pursuant thereto to
comply with any state or federal law or regulation.

                9.3     Compliance with Section 16 of the Exchange Act. The
Board shall

                                       6
<PAGE>

implement transactions under the Plan and administer the Plan in a manner that
will ensure that each transaction involving an Optionee (other than a sale of
shares acquired through the exercise of an Option) is exempt from liability
under Rule 16b-3, except that an Optionee may be permitted to engage in a
non-exempt transaction under the Plan if written notice is given to the Optionee
regarding the non-exempt nature of such transaction.

                9.4     No Shareholder Rights Conferred. An Optionee shall have
no rights as a shareholder with respect to the shares of Stock subject to an
Option until the date of issuance of stock certificates for such Stock to the
Optionee.

                9.5     Nonexclusivity of the Plan. The adoption of the Plan by
the Board shall not be construed as creating any limitations on the power of the
Board to adopt such other compensation and incentive plans as it may deem
desirable.

                9.6     Governing Law. The validity, construction and effect of
the Plan and any agreement hereunder shall be determined in accordance with the
laws of the Commonwealth of Virginia, without giving effect to principles of
conflicts of laws, and applicable federal law.

                9.7     Withholding. The Company's obligation to deliver shares
of Stock upon the exercise of any Options granted hereunder the Plan shall be
subject to the satisfaction of all applicable federal, state and local tax
withholding requirements.

                9.8     No Employment. Nothing in this Plan, including the
granting of any Option shall impose upon the Company any obligation to employ
the Optionee. The right of the Company to terminate the employment of the
Optionee shall not be diminished or affected by reason of the fact that an
Option has been granted hereunder to the Optionee.

                9.9     Investment Purpose. The Optionee agrees that any shares
of Stock subject to the Option granted under the Plan will be acquired for
investment and not with any present intention to resell the same, and the
Optionee further agrees to confirm such intention by an appropriate written
assurances and certificates at the time of exercising an Option or any portion
thereof.

         10.    Effective Date of Plan; Termination.

                10.1    Effective Date.  The Plan shall become effective upon
its adoption by the Board.

                10.2    Termination. Unless earlier terminated by the action of
the Board, the Plan shall remain in effect until such time as no shares of Stock
remain available for issuance under the Plan and the Company and Optionees have
no further rights or obligations under the Plan.

                                       7

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