Document:

EXHIBIT 4.3
                                                                     -----------

THIS SUBSCRIPTION AGREEMENT is made the ___ day of December, 2000, BETWEEN:

(1)      the CDKnet.com, Inc., a company incorporated in the state of Delaware,
         the United States of America, with an office at 250 West 57th Street,
         New York, New York 10019 U.S.A. ("CDK"); and

(2)      Mr. Masaki Hashimoto, an individual with an address at 2-3-35 Nishizaka
         Tsashima Okayamacity Okayana Japan, ("Subscriber")

FOR VALUE RECEIVED, EACH PARTY HERETO HEREBY AGREES as follows:

1.       Subscriber hereby agrees and undertakes to subscribe for, and agrees to
purchase, 14,736,842 shares of common stock of CDK (the "Subscription Shares")
at the price of Nineteen Cents (US$0.19) per share (the "Subscription Share
Price"), subject to the terms and conditions contained in this Agreement.

2.       The aggregate Subscription Share Price for the Subscription Shares is
US$2,800,000.00 and shall be paid as follows:

         (i)   On or before December 20, 2000 the sum of US$500,000.00;

         (ii)  On or before January 10, 2001 the sum of US$500,000.00;

         (iii) On or before January 30, 2001 the sum of US$300,000.00;

         (iv)  On or before February 15, 2001 the sum of US$150,000.00;

         (v)   On or before February 28, 2001 the sum of US$150,000.00;

         (vi)  On or before March 15, 2001 the sum of US$150,000.00;

         (vii) On or before March 30, 2001 the sum of US$150,000.00;

         (viii)On or before April 15, 2001 the sum of US$150,000.00;

         (ix)  On or before April 30, 2001 the sum of US$150,000.00;

         (x)   On or before May 15, 2001 the sum of US$150,000.00;

         (xi)  On or before May 30, 2001 the sum of US$150,000.00;

         (xii) On or before June 15, 2001 the sum of US$150,000.00; and

         (xiii)On or before June 30, 2001 the sum of US$150,000.00.
<PAGE>

The receipt by CDK (via facsimile) of a bank confirmation of a wire transfer of
funds to a CDK account (as instructed by CDK to Subscriber) by the date set
above will satisfy the payment requirement, but only if CDK collects such funds
within two business days of the date of such wire instructions (or, in the case
of a provable bank error, then as long as it takes to correct the bank error
provided Subscriber uses his best efforts to correct such error).

         3. Stock certificates for an amount of Subscription Shares representing
the pro rata portion of the Subscription Shares in respect of each payment shall
be delivered to Subscriber promptly after collection by CDK of the payment of
such shares.

         4. All of the subscription funds received by CDK pursuant to this
Agreement will be used by CDK to purchase stock of ValueFlash.Com, Incorporated.

         5. In the event that the financial circumstances of CDK improves to the
point that CDK no longer believes that it requires additional financing pursuant
to this Agreement, then CDK will notify Subscriber of such change in condition,
and Subscriber will then have the option, exercisable in his discretion within
thirty (30) days of receipt of such notice, to terminate this Agreement but
retain the registration rights in connection with the Subscription Shares
already purchase.

         6. In the event that Subscriber fails to timely make any payment due
hereunder, CDK has the right, exercisable within thirty (30) days of such
failure, to terminate this Agreement, and the further right, exercisable in part
or in whole and from time to time, at any time through September 30, 2001, to
repurchase the Subscription Shares delivered to Subscriber for the repurchase
price of the lower of (x) US$0.19 or (y) market price at the time of repurchase.

         7. In the event that Subscriber timely makes all payments due
hereunder, then CDK agrees that it will make a filing with the Securities
Exchange Commission by no later than September 30, 2001 to register all of the
Subscription Shares.

         8. The shares to be issued hereunder, which shall be imprinted with a
legend restricting their transfer unless the same is registered with the
Securities and Exchange Commission under the Securities Act of 133, as amended,
or in the opinion of parent's counsel, registration is not necessary, are being
received by Subscriber for investment purposes and not with a view to, or in
connection with, any distribution thereof in violation of any securities laws.
Subscriber agrees and acknowledges that no representations or promises have made
in connection with CDK or the Subscriber Shares, and that he has been
investigated and performed due diligence on CDK to his complete satisfaction.

         9. Subscriber may assign his rights and obligations under this
Agreement to any entity in which he is a principal provided that CDK received no
less than three (3) business say notice of such assignment.
<PAGE>

         10. The parties agree that they will negotiate in good faith to
complete a more formal agreement on the subject matter hereof by thirty (30)
days from the date hereof. If, however, no such more formal agreement is
entered, then this Agreement will continue in full force and effect.

         11. GENERAL

         (a)   Nothing in this Agreement shall create, or be deemed to create,
               any partnership or the relationship of principal and agent or
               employer and employee between the parties.

         (b)   This Agreement sets out the entire agreement and understanding
               between the parties in relation to the transactions hereby
               contemplated, and supersedes all previous agreements,
               arrangements and understandings between them with regard to such
               transactions and neither party is entering into this Agreement or
               any of the arrangements contemplated hereby in reliance upon any
               representation or warranty not expressly set out in this
               Agreement.

         (c)   No provision of this Agreement may be amended, modified, waived,
               discharged or terminated otherwise than by the express written
               agreement of the parties hereto nor may any breach of any
               provision of this Agreement be waived or discharged except with
               the express written consent of the party not in breach.

         (d)   No failure or delay by either party in exercising any rights,
               power or privilege under this Agreement shall operate as a waiver
               thereof, nor shall any single or partial exercise by either party
               of any right, power or privilege preclude any further exercise
               thereof or the exercise of any other right, power or privilege.

         (e)   The rights and remedies of the parties herein provided are
               cumulative and not exclusive of any rights and remedies provided
               by law.

         (f)   Each party shall be responsible for its own costs incurred in
               connection with the negotiation, preparation, execution and
               carrying into effect of this Agreement.

         (g)   Time shall be of the essence of this Agreement, both as regards
               the dates and periods specifically mentioned and as to any dates
               and periods which may be substituted by agreement in writing
               between or on behalf of the parties.

         (h)   In the event that any provision of this Agreement is held to be
               unenforceable, illegal or invalid by any court of competent
               jurisdiction, the validity, legality or enforceability of the
               remaining provisions shall not be affected nor shall any
               subsequent application of such provisions be
<PAGE>

               affected. In lieu of any such invalid, illegal or unenforceable
               provision, the parties hereto intend that there shall be added as
               part of this Agreement a provision as similar in terms to such
               invalid, illegal or unenforceable provision as may be possible
               and be valid, legal and enforceable.

         (i)   This Agreement may be executed in any number of counterparts or
               duplicates each of which shall be an original but such
               counterparts or duplicates shall together constitute one and the
               same agreement.

         (j)   Each of the parties hereto shall do, execute and perform all such
               further deeds, documents, acts and things as the other party may
               reasonably require to put into effect the transactions
               contemplated by this Agreement.

         (k)   All provisions of this Agreement shall so far as they are capable
               of being performed and observed continue in full force and effect
               notwithstanding completion except in respect of those matters
               then already performed.

         (l)   Any notice required to be given under this Agreement shall be
               sufficiently given if delivered personally or forwarded by
               internationally recognized overnight couriers or sent by
               facsimile transmission to the relevant party at its address or
               fax number set out above (or such other address as the addressee
               has by five days prior written notice specified to the other
               parties). Any notice delivered personally shall be deemed to have
               been served at the item of delivery. Any notice sent by
               internationally recognized overnight couriers shall be deemed to
               have been served 3 business days after the time at which it was
               delivered to the courier, the tracking receipt shall be
               sufficient to prove such service and notices sent by facsimile
               transmission shall be deemed to have been served one business day
               after transmission.

         (m)   This Agreement shall be governed by and construed in all respects
               in accordance with the laws of the state of New York in the
               United States of America ("New York") and the parties hereby
               irrevocably submit to the non-exclusive jurisdiction of the
               Courts of New York.

         AS WITNESS the parties hereto have caused this Agreement to be executed
the day and year first above written.

CDKNET.COM, INC.

By:      /s/ Steven A. Horowitz                      /s/ Masaki Hashimoto
         ----------------------                      --------------------
Name:    Steven A. Horowitz                          Masaki Hashimoto
         Title: CEO and PresidentEXHIBIT 10.43
                                                                   -------------

                      COLLATERAL ASSIGNMENT OF PATENTS AND
                        TRADEMARKS AND SECURITY AGREEMENT
                        ---------------------------------

         COLLATERAL ASSIGNMENT OF PATENTS AND TRADEMARKS AND SECURITY AGREEMENT,
dated effective November 14, 2000, made by CDKNET.COM, INC., a Delaware
corporation and its wholly owned subsidiary, CDKnet, LLC, a New York limited
liability company, both having principal offices at 250 West 57th Street, New
York, New York 10019, (hereinafter sometimes referred to as "CDK" and at other
times as the "Borrower") to STEVEN A. HOROWITZ, residing at 3 Equestrian Court,
West Hills, New York 11743 (the "Lender").

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

         WHEREAS, Borrower owns the patents, patent registrations, patent
applications, trademarks, trademark registrations and trademark applications
listed on, respectively, Schedule 1 and Schedule 2 annexed hereto (for purposes
of this Patent and Trademark Security Agreement, all references to "trademark",
"trademark registrations", "trademark applications" and "trademark licenses"
shall be deemed to include service marks, service mark registrations, service
mark applications and service mark licenses);

         WHEREAS, Borrower has granted to Lender a security interest in certain
of the assets of Borrower to secure the payment of all amounts owing under the
provisions of a Security Agreement dated effective the date hereof between
Borrower and Lender (the "Agreement");

         WHEREAS, to further secure the payment of all amounts owing under the
terms of the Agreement, Borrower has agreed to grant to Lender a collateral
assignment of and security interest in, inter alia, all rights, title and
interest of Borrower in, to and under all Borrower's patents, patent
registrations, patent applications, trademarks, trademark registrations,
together with any renewals thereof, trademark applications and any registrations
resulting therefrom, whether presently existing or hereafter arising or
acquired, together with the goodwill of the business symbolized by the patents,
trademarks and the applications therefore and the registrations thereof, and all
products and proceeds of its rights, title and interest in and to such patents,
patent registrations, patent applications, trademarks, trademark registrations
and trademark applications, including, without limitation, any and all causes of
action which may exist by reason of past, present or future infringement,
misappropriation, misuse or dilution thereof or injury to the associated
goodwill;

         NOW, THEREFORE, subject to the terms and conditions set forth herein,
for good and valuable consideration, the receipt and sufficiency of which is
hereby acknowledged, in order to more fully perfect and confirm unto Lender the
collateral assignment of and security interest in the Patent and Trademark
Collateral referred to below, Borrower does hereby sell, assign, convey,
transfer, deliver and set over to Lender and grant to Lender a security interest
in all Borrower's rights, title and interest in, to and under the following (all
of the following items or types of property being herein collectively referred
to as the "Patent and Trademark Collateral"),
<PAGE>

whether presently existing or hereafter arising or acquired:

               (i) each patent, patent license and patent application owned by
Borrower, including, without limitation, each patent and patent application of
Borrower referred to in Schedule 1 hereto, and any patent granted thereon,
together with any divisional, provisional, continuation, reissue or other
related application, and any renewals thereof in the United States and the
territories in which the related applications were filed and the related patents
were granted, and all of the goodwill of the business connected with the use of,
and symbolized by each such patent;

               (ii) each trademark, trademark registration and trademark
application owned by Borrower, including, without limitation, each trademark
referred to in Schedule 2 hereto, and renewals thereof, in the territories in
which the related registrations were granted and the related applications were
filed, and any and all common law or other rights in trademarks owned by and
used in the businesses of Borrower as of the date of this instrument for which
neither an application for registration has been filed nor a registration
granted, along with the goodwill of said businesses conducted under said
trademarks and service marks in said territories and jurisdictions, and all
together with the rights to sue for past infringement thereof; and

               (iii) all products and proceeds of the foregoing, including,
without limitation, any claim by or accruing to Borrower against third parties
for past, present or future infringement, dilution, misuse or misappropriation
of any patent, patent registration, trademark or trademark registration owned by
Borrower, including, without limitation, any patent, patent registration,
trademark or trademark registration referred to in Schedule 1 or Schedule 2
hereto, as the case may be or for injury to the goodwill associated with any
patent, patent registration or patent application, or with any trademark,
trademark registration, or trademark applications.

         Borrower shall, without charge, render such assistance to Lender as
might be reasonably necessary in order for Lender to establish and maintain
clear record ownership and control of the assets set forth in the Schedules
attached hereto, said assistance including the execution of such further
assignments, instruments and other documents requested by Lender as necessary,
desirable or appropriate for the aforesaid purposes.

         Borrower does hereby acknowledge and affirm that the rights and
remedies of Borrower with respect to the security interest in the patents,
patent registrations, patent applications, trademarks, trademark registrations,
and trademark applications made and granted hereby are as provided in the
Agreement, all such rights and remedies being incorporated herein by reference.

         During the term of this Collateral Assignment of Patents and Trademarks
and Security Agreement, Borrower shall continue the normal maintenance of the
subject patents and trademarks by filing all appropriate new applications,
affidavits of use and /or renewal applications as needed and by prosecuting any
applications thereof. If Borrower fails to do any of the same, Lender shall have
the right (but not the obligation) to cause the same to be performed, all at the
sole cost and expense of the Borrower.

         The parties hereto hereby acknowledge and agree that this Collateral
Assignment of
<PAGE>

Patents and Trademarks and Security Agreement is for collateral security only,
and that Lender shall take title to and control of the intellectual property
assets set forth herein only if and when Lender becomes entitled to exercise its
rights and remedies under the security interests granted to Lender pursuant to
the terms and conditions of the Agreement between Borrower and Lender and any
other security agreement securing the same, and that prior to the time that
Lender becomes entitled to exercise such rights and remedies the control and
ownership of the intellectual property assets set forth herein shall at all
times remain with Borrower.

         This Collateral Assignment of Patents and Trademarks and Security
Agreement shall terminate at such time as all of the obligations governed by the
Agreement have been fully and finally paid and performed and, upon such final
termination and upon request from the Borrower, Lender shall promptly execute
and deliver, at Borrower's sole cost and expense, to Borrower such documents and
instruments as are reasonably necessary to evidence such termination and usable
to record the termination and release of the security interests granted herein.

         Borrower hereby waives any and all legal requirements that Lender
institute any action or proceeding in law or in equity against any other party,
or exhaust its remedies under the Agreement or any of the documents executed in
connection therewith as a condition precedent to exercising its rights and
remedies hereunder.

         This Assignment shall be binding upon Borrower, and its successors and
assigns and shall inure to the benefit of Lender, and its successors and
assigns.

         This Assignment may only be modified, altered, amended or terminated by
an agreement in writing executed by the parties hereto.

         If any term, covenant or condition or, if separable, any part thereof
of this Assignment shall be held to be invalid, illegal or unenforceable in any
respect, this Assignment shall be construed without such provision or part
thereof.

         This Assignment shall be governed by and construed under the laws of
the State of New York, without regard to its principles of conflicts or choice
of law.

         IN WITNESS WHEREOF, Borrower has caused this Collateral Assignment of
Patents and Trademarks and Security Agreement to be duly executed effective the
date first above written.

                                 CDKNET.COM, INC.

                                 By: /s/ Steven A. Horowitz
                                     -------------------------------------------
                                     Steven A. Horowitz, Chief Executive Officer

AGREED TO AND ACCEPTED:

/s/ Steven A. Horowitz
----------------------
Steven A. Horowitz
<PAGE>

STATE OF NEW YORK          )
COUNTY OF ________         )      SS.:

         On the ____ day of _________, in the year 2000 before me, the
undersigned, personally appeared Steven A. Horowitz, personally known to me or
proved to me on the basis of satisfactory evidence to be the individual whose
name is subscribed to the within instrument and acknowledged to me that he
executed the same in his capacities, and that by his signature on the
instrument, the individual, or the person upon behalf of which the individual
acted, executed the instrument.

                                           ----------------------------------
                                           Signature and Office of individual
                                           taking acknowledgment

<PAGE>

                                  SCHEDULE "1"
                                  ------------

PATENT NUMBER     ISSUE DATE         TITLE
-------------     ----------         -----

6,047,292         April 4, 2000      Multi-session, digitally encoded recording
                                     medium navigable by an Internet browser.

Continuation Application filed by counsel to the Debtor regarding previously
rejected claims.

PATENT APPLICATION NUMBER     FILING DATE    APPLICANTS     TITLE
-------------------------     -----------    ----------     -----

<PAGE>

                                  SCHEDULE "2"
                                  ------------

TRADEMARK SERIAL NUMBER                                 MARK
-----------------------                                 ----

75/426,937                                               CDK

75/7

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