Document:

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,
OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE SOLD, TRANSFERRED, OR
OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
UNDER SUCH ACT AND APPLICABLE STATE SECURITIES LAWS OR PURSUANT TO AN APPLICABLE
EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF SUCH ACT AND SUCH LAWS.

                                 PROMISSORY NOTE

Danbury, Connecticut                                   Original Principal Amount
June 29, 2005                                                         $20,000.00

FOR VALUE RECEIVED, Indian River Labs, LLC of 6815 Woodmere, Sebastian, Florida
32958 ("Borrower") promises to pay to the order of TASKER CAPITAL CORP., a
Nevada corporation ("Tasker"), the principal amount of twenty thousand dollars
(US $20,000.00) (such amount, the "Principal"), and any and all other sums which
may be owing to Tasker by Borrower under this Promissory Note (this "Note"), in
the manner set forth in Section 3, subject to acceleration and/or extension as
herein provided. The following terms and conditions shall apply to this Note:

      1. Interest Rate. Interest shall accrue on the unpaid principal balance of
this Note at a rate equal to zero (the "Interest Rate") percent per annum
[compounded semi-annually in arrears on the first business day of each fiscal
half-year] until September 29, 2005 after which the interest rate shall become
seven percent (7 %). Interest shall be calculated on the basis of a three
hundred sixty day year and the actual number of days elapsed. Subject to
applicable law, any past due payment of interest of principal hereunder shall
bear interest, from the date such amount was due until properly paid, payable on
demand in immediately available funds, at a rate equal to the sum of (a) the
Interest Rate plus (b) four percent (4%) per annum. In the event that any
interest rate provided for herein shall be determined to be unlawful, such
interest rate shall be computed at the highest rate permitted by applicable law.
Any payment by Borrower of any interest amount in excess of that permitted by
law shall be considered a mistake, with the excess being applied to the
Principal without prepayment premium or penalty.

      2. Term. The term of this Note shall be for a period extending from the
date of this Note to October 29, 2005 (the last mentioned date, the "Maturity
Date"), subject to acceleration and/or extension as herein set forth.

      3. Repayment. Borrower shall repay the Principal of this Note in one
installment of twenty thousand dollars (US $20,000.00) together with the
interest that has accrued thereon, on the Maturity Date, at which time all sums
due on this Note shall be paid in full, to the extent such sums are still due
and owing.

      4. Application of Payments. All payments made pursuant to this Note shall
be applied first to accrued interest and then to the Principal.

      5. Prepayment. Borrower may prepay this Note in whole or in part at any
time or from time to time without penalty.

      6. Manner and Method of Payment. All payments called for in this Note
shall be made in lawful tender of the United States of America.

      7. Acceleration Events. The occurrence of one or more of the following
events shall constitute an acceleration event (an "Acceleration Event"):

<PAGE>

      (a)   The entry of a decree or order for relief by a court having
            jurisdiction against or with respect to Borrower in an involuntary
            case under the federal bankruptcy laws or any state insolvency or
            similar laws, ordering the liquidation, reorganization or the
            appointment of a receiver, trustee or custodian;

      (b)   The commencement by Borrower of a voluntary case under the federal
            bankruptcy laws or any state insolvency laws or similar laws, the
            consent by Borrower of the appointment of a receiver or the making
            by Borrower of an assignment for the benefit of creditors;

      (c)   The acceleration by any senior lender of Borrower from time to time
            (the "Senior Lender") of any indebtedness due from Borrower to the
            Senior Lender; or

      (d)   A change of control of Borrower or a sale of all or substantially
            all of the business or assets of Borrower.

      8. Acceleration. Upon the occurrence of an Acceleration Event, Tasker may
declare the Principal immediately due and payable.

      9. Extensions of Maturity. Borrower hereby agrees that the maturity of
this Note, or any payment due hereunder, may be extended at any time or from
time to time by Tasker without releasing, discharging or affecting the liability
of Borrower hereunder.

      10. Choice of Law. This Note shall be governed, construed and enforced in
accordance with the laws of the State of Connecticut, exclusive of its conflict
of laws provisions.

      11. Binding Nature. This Note shall be binding and enforceable against
Borrower and Borrower's permitted successors and assigns. This Note may not be
assigned by Borrower without the prior written consent of Tasker.

      12. Severability. If any one or more of the provisions contained herein,
or the application thereof in any circumstance, is held invalid, illegal or
unenforceable in any respect for any reason, the validity, legality and
enforceability of any such provision in every other respect and of the remaining
provisions hereof shall not be in any way impaired, unless the provisions held
invalid, illegal or unenforceable shall substantially impair the benefits of the
remaining provisions hereof.

      IN WITNESS WHEREOF, Borrower has executed this Note on the date and year
first above written.

                                                Indian River Labs, LLC

                                                --------------------------------
                                                By:  David Dickinson
                                                Its: Member & Assistant ManagerSTOCK PURCHASE AGREEMENT

      THIS STOCK PURCHASE AGREEMENT (this "Agreement") dated as of April 22,
2005, is entered into by and between Electric Aquagenics Unlimited, Inc., a
Delaware corporation ("Seller"), Tasker Capital Corp., a Nevada corporation
("Buyer).

      Seller and certain other stockholders (the "Other Stockholders") own the
entire issued and outstanding capital stock of Biofilm Strategies Corporation, a
Delaware (the "Company"), consisting of 1,329,630 shares of common stock, par
value $1.00 per share (the "Shares"). Seller owns 359,000 of the Shares (the
"Sale Shares"), which shares are owned of record and beneficially by Seller and
constitute Seller's entire equity interest in the Company. In consideration of
the promises and the mutual agreements, representations and warranties,
covenants and provisions hereinafter set forth, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged,
Buyer and Seller, intending to be legally bound, hereby agree as follows:

                          ARTICLE 1: PURCHASE AND SALE

      1.1. Sale of Shares. Upon the terms and subject to the conditions set
forth in this Agreement, Buyer agrees to purchase from Seller and Seller agrees
to sell, assign, transfer and deliver to Buyer the Sale Shares, on the terms and
for the consideration specified in this Agreement. Buyer shall acquire the Sale
Shares free and clear of all liens, security interests, claims, pledges,
mortgages, liabilities, conditional sale agreements, restrictions, charges,
rights of first refusal, encumbrances, guarantees or third party rights of any
kind ("Encumbrances").

      1.2 Purchase Price. The aggregate purchase price for the Sale Shares shall
be Seven Hundred Eighteen Thousand and 00/100 Dollars ($718,000) (the "Purchase
Price"), which shall be payable by Buyer to Seller in immediately available
funds by wire transfer to a bank account identified by Seller by 4 PM on the day
Buyer receives this executed Agreement, provided Buyer receives such Agreement
by 3:30 PM of the same day.

      1.3 Closing. The closing of the purchase and sale of the Sale Shares (the
"Closing") shall take place when the Seller receives the requirements of section
1.4 of this agreement (the "Closing Date") but no later than April 27, 2005.

      1.4 Deliveries at the Closing by Seller. On the Closing Date, Seller will
deliver to Buyer the following certificates, instruments and documents which
shall be duly executed by Seller and in form and substance reasonably
satisfactory to Buyer:

      (a) the share certificate(s) in respect of all of the Sale Shares, signed
and completed in the name of Buyer together with evidence satisfactory to Buyer
that Buyer has been duly entered onto the books of the Company as the holder of
the Sale Shares;

      (b) a certificate certifying that (1) attached thereto is a true and
complete copy of resolutions duly adopted by the Board of Directors of Seller
authorizing the execution, delivery and performance of this Agreement and all
documents and instruments to be executed by Seller, hereunder, (2) such
resolutions have not been modified, rescinded or amended and are in full force
and effect, and (3) the names of each officer and director of Seller and such
persons' respective offices, are as set forth in the certificate; and

                                       1
<PAGE>

      (c) all such other instruments of sale, assignment, transfer or conveyance
that Buyer may reasonably deem necessary or appropriate in order to perfect,
confirm or evidence title to the Sale Shares in accordance with this Agreement
and all such additional certificates, receipts, documents and instruments as
Buyer shall reasonably request to evidence satisfaction of the obligations of
Seller under this Agreement.

      (d) a complete and accurate list of all material intellectual property of
the Company, including all patents, patent applications, trademarks, trade
names, service marks, and copyrights owned, used or held for use by the Company.

      1.5 Deliveries at the Closing by Buyer. On the Closing Date, Buyer will
deliver to Seller the following, certificates, instruments and documents which
shall be duly executed by Buyer and be in form and substance reasonably
satisfactory to Seller:

      (a) A certificate of the Secretary of Buyer certifying: (1) the good
standing of Buyer in its state of incorporation, (2) resolutions of the Board of
Directors of Buyer authorizing the execution and delivery of this Agreement by
it and the performance of its obligations hereunder, and (3) the incumbency and
signatures of the officers of Buyer executing this Agreement; and

      (b) All such additional certificates, receipts, documents and instruments
as Seller shall reasonably request in order to evidence satisfaction of the
obligations of Buyer under this Agreement.

               ARTICLE 2: REPRESENTATIONS AND WARRANTIES OF SELLER

      Seller hereby represents and warrants to Buyer that the statements
contained in this Article 2 are true, correct and complete as of the date hereof
and the Closing Date:

      2.1 Organization; Corporate Authority. The Company is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Delaware and Seller is a corporation duly organized, validly existing and in
good standing under the laws of the State of Delaware. The Company is qualified
to do business as a foreign corporation in each jurisdiction where it is
required to be so qualified and is in good standing in each such jurisdiction,
except where the failure to be so qualified would not have a material adverse
effect on the Company. Seller has delivered to Buyer true, correct and complete
copies of the Company's Articles of Incorporation and By-Laws, or similar
documents, as currently in effect (the "Organizational Documents"). The Company
has all requisite power and authority to own, lease and operate its properties
and conduct its business as and where it is now being conducted.

      2.2 Authority of Seller and the Guarantors. The Seller has unrestricted
rights to transfer the Sale Shares to Buyer and has the requisite authority to
enter into, deliver and perform its obligations under this Agreement and each of
the other agreements, instruments, documents and certificates to be executed and
delivered by Seller pursuant to this Agreement (collectively with this
Agreement, the "Transaction Documents"). Assuming the due execution by Buyer,
this Agreement and the other Transaction Documents executed by Seller that are
to be delivered on the Closing Date shall, when executed, constitute valid and
binding obligations of Seller enforceable in accordance with their respective
terms.

                                       2
<PAGE>

      2.3 Capitalization. The authorized capital stock of the Company consists
of 1,000,000 shares of Common Stock, of which 1,000,000 shares are issued and
outstanding. There are no shares held in treasury. The Company has no other
issued and outstanding securities or classes of capital stock. All of the
Shares, including the Sale Shares, are duly authorized, validly issued, fully
paid and nonassessable and owned of record free and clear of any Encumbrances by
the persons and in such numbers as set forth on Schedule 2.3. Except as set
forth on Schedule 2.3, there are no (a) outstanding securities convertible or
exchangeable into shares of capital stock of the Company, (b) options, warrants,
calls, subscriptions, preemptive rights or other rights, agreements or
commitments obligating the Company to issue, transfer or sell any shares of its
capital stock or (c) voting trusts or other agreements or understandings to
which the Company is a party or by which the Company is bound with respect to
the voting, transfer or other disposition of its shares of capital stock. Seller
is the sole record and beneficial owner of the Sale Shares. The delivery to
Buyer of the certificates representing the Sale Shares in accordance with this
Agreement and the payment by Buyer to Seller of the Purchase Price in accordance
with Section 1.2 shall transfer to Buyer record and beneficial ownership of the
Sale Shares free and clear of any Encumbrances.

      2.4 No Subsidiaries. The Company does not own or control, directly or
indirectly, any interest in any other corporation, partnership, limited
liability company, association or other business entity.

      2.5 Directors and Officers. A complete list of the directors and officers
of the Company is set forth on Schedule 2.5 hereto.

      2.6 No Violation; Consents.

            (a) Except as set forth on Schedule 2.6, the execution and delivery
of this Agreement and the other Transaction Documents by Seller and Guarantors,
as applicable, does not and will not, and the performance by Seller and each
Guarantor of its obligations under this Agreement and the other Transaction
Documents, as applicable, does not and will not, violate or result in any
violation of, conflict with or constitute or result in a default under, or give
rise to a right of modification, termination or acceleration of any obligation,
the creation of any Encumbrance upon any of the assets of the Company, Seller or
either Guarantor or result in a loss of benefit (with or without due notice,
lapse of time or both) under: (i) the Organizational Documents of the Company,
(ii) any term, condition or provision of any contract, loan or credit agreement,
mortgage, indenture or other agreement or instrument to which any of Seller or
the Guarantors is a party or by which any of their respective assets or
properties are bound, (iii) any permit, license, judgment, order or decree by
which the Company, Seller or either Guarantor is bound or (iv) any statute,
ordinance, rule or regulation by which Seller or either Guarantor is bound.

            (b) Except for any item set forth on Schedule 2.6, no authorization,
consent or approval of, filing or registration with, or notice to, any
government or governmental agency or instrumentality, whether federal, state or
local, domestic or foreign or person is necessary for the execution and delivery
of, or the performance by, Seller of its obligations under this Agreement or the
other Transaction Documents.

      2.7 Legal Proceedings. There is no claim, suit, action, proceeding, order
or investigation pending or, to the knowledge of Seller, threatened against the
Company, any of its assets or properties or any of its officers, directors,
stockholders or key employees. The Company is not subject to any outstanding
injunction, judgment, order, decree, ruling or charge.

      2.8 Compliance with Laws. The Company is in compliance in all material
respects with all applicable permits, judgments and legal requirements required
for the conduct of the Company's business or ownership of its assets.

                                       3
<PAGE>

      2.9 Intellectual Property. Schedule 2.9 sets forth a complete and accurate
list of all material intellectual property of the Company, including all
patents, patent applications, trademarks, trade names, service marks, and
copyrights owned, used or held for use by the Company (the "Intellectual
Property"). Except as set forth on Schedule 2.9: (a) the Company exclusively
owns or possesses adequate and enforceable rights to use all of the Intellectual
Property free and clear of all Encumbrances; (b) all patents, marks and
copyrights owned by the Company which are issued by, or registered or the
subject of an application filed with, as applicable, the U.S. Patent and
Trademark Office, the U.S. Copyright Office or any similar office or agency
anywhere in the world have been duly maintained (including the payment of
maintenance fees) and are not expired, cancelled or abandoned; (c) the Company
has taken all reasonable precautions in accordance with normal industry practice
to protect the secrecy, confidentiality, and value of its trade secrets and the
proprietary nature and value of its Intellectual Property; (d) there are no
pending or threatened claims against the Company alleging a conflict with,
infringement on or violation of the rights of others in or to any Intellectual
Property ("Third Party Rights") or that any of the Intellectual Property is
invalid or unenforceable; (e) the Intellectual Property does not infringe on or
violate any Third Party Rights or infringe on or violate the rights of any
person or entity under any patent; (f) the Company has not granted any license
in respect of any intellectual property that provides any third party with any
outstanding rights; (g) no current or former employee or consultant of the
Company owns any rights in or to any of the Company's Intellectual Property; and
(h) there is no infringement by any person or entity of any of the Company's
Intellectual Property.

               ARTICLE 3: REPRESENTATIONS AND WARRANTIES OF BUYER

      Buyer hereby represents and warrants to Seller that the statements
contained in this Article 3 are true, correct and complete as of the date hereof
and as of the Closing Date:

      3.1 Organization; Corporate Authority. Buyer is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Nevada and is qualified to do business as a foreign corporation in each
jurisdiction where it is required to be so qualified and is in good standing in
each such jurisdiction, except where the failure to be so qualified would not
have a material adverse effect on Buyer.

      3.2 Authority of Buyer. The Buyer has the requisite authority to enter
into, deliver and perform its obligations under this Agreement and each of the
other Transaction Documents. Assuming the due execution by Seller, this
Agreement and the other Transaction Documents executed by Buyer that are to be
delivered on the Closing Date shall, when executed, constitute valid and binding
obligations of Buyer enforceable in accordance with their respective terms.

                         ARTICLE 4: RESTRICTIVE COVENANT

      4.1 Restrictive Covenant. During the five (5) year period following the
Closing Date, neither Seller nor either Guarantor shall, directly or indirectly
own, manage, operate or control any business engaged in the marketing, sale or
development of technology, products or services in the United States of America
in competition with the Company or any successor to its business (a "Competitive
Business"); provided that the foregoing covenant shall not prohibit, or be
interpreted as prohibiting, Seller or either Guarantor from making equity
investments of less than two percent (2%) in publicly owned companies which
conduct a Competitive Business.

                      ARTICLE 5: INDEMNIFICATION; REMEDIES

      5.1 Survival. All of the representations, warranties and covenants set
forth in this Agreement shall survive the Closing.

                                       4
<PAGE>

      5.2 Indemnification by Seller. Seller shall defend and hold harmless Buyer
from and against any and all actions, suits, proceedings, charges, complaints,
claims, demands, injunctions, judgments, orders, decrees, rulings, damages,
dues, penalties, fines, deficiencies, costs, amounts paid in settlement,
liabilities, obligations, liens, losses, expenses and fees, including court
costs and reasonable attorneys' fees and expenses (collectively, "Damages"), and
shall indemnify and hold Buyer harmless for, and will pay to Buyer the amount
of, any Damages incurred or suffered, directly or indirectly, by Buyer as a
result of (a) any breach or inaccuracy or misrepresentation in any
representation or warranty made by Seller in this Agreement or in any
certificate of Seller delivered pursuant hereto or (b) any failure to perform or
the breach of any covenant or agreement made by Seller in this Agreement.

      5.3 Indemnification by Buyer. Buyer shall defend and hold harmless Seller
from and against any and all Damages and shall indemnify and hold Seller
harmless for, and will pay to Seller the amount of any Damages incurred or
suffered, directly or indirectly, by Seller as a result of (a) any breach of, or
inaccuracy or misrepresentation in any representation or warranty made by Buyer
in this Agreement or any certificate of Buyer delivered pursuant hereto or (b)
any failure to perform or the breach of any covenant or agreement made by Buyer
in this Agreement.

                       ARTICLE 6: MISCELLANEOUS PROVISIONS

      6.1 Notices. All notices, demands and other communications which may or
are required to be given or made by either party to the other in connection with
this Agreement shall be in writing (including telex, fax or other similar
writing) and shall be deemed to have been duly given or made: (a) if sent by
registered or certified mail, five (5) business days after the posting thereof
with first class postage attached; (b) if sent by hand or overnight delivery,
upon the delivery thereof; and (c) if sent by fax, upon confirmation of receipt
of such fax, in each case addressed to the respective parties as follows:

            Seller:

                        Electric Aquagenics Unlimited
                        Attention:  _______________
                        Fax No.: _________________

            Buyer:

                        Tasker Capital Corp.
                        100 Mill Plain Road
                        Danbury, Connecticut 06811
                        Attention: Robert D. Jenkins, Chief Financial Officer
                        Fax No.: 203.546.3427

or to such other address and to the attention of such other persons as either
party hereto may specify from time to time by written notice to the other party.

      6.2 Entire Agreement. This Agreement and the schedules attached hereto
(all of which are incorporated herein by this reference) is the entire agreement
and understanding of the parties hereto with respect to the subject matter
hereof and the transactions contemplated hereby, and supersede all prior and
contemporaneous agreements and understandings, oral or written, relative to said
subject matter.

                                       5
<PAGE>

      6.3 Waiver; Consent. This Agreement may not be changed, amended,
terminated, augmented, rescinded or discharged (other than by performance), in
whole or in part except by a writing executed by the parties hereto, and no
waiver of any of the provisions or conditions of this Agreement or any of the
rights of a party hereto shall be effective or binding unless such waiver shall
be in writing and signed by the party claimed to have given or consented
thereto. Except to the extent that a party hereto may have otherwise agreed in
writing, no waiver by that party of any condition of this Agreement or breach by
the other party of any of its obligations or representations hereunder shall be
deemed to be a waiver of any other condition or subsequent or prior breach of
the same or any other obligation or representation by the other party, nor shall
any forbearance by the first party to seek a remedy for any noncompliance or
breach by the other party be deemed to be a waiver by the first party of its
rights and remedies with respect to such noncompliance or breach.

      6.4 No Third Party Beneficiaries. Nothing herein, expressed or implied, is
intended or shall be construed to confer upon or give to any person other than
the parties hereto any legal or equitable right, remedy, claim or other benefit
under or by reason of this Agreement.

      6.5 Governing Law. This Agreement shall be construed in accordance with
and governed by the laws of the State of New York, in all respects, exclusive of
laws relating to conflicts of law.

      6.6 Interpretation. No presumptions shall arise favoring either party by
virtue of the authorship of any provision of this Agreement. Each party to this
Agreement has been represented by counsel of its choice in negotiating and
drafting.

      6.7 Invalidity; Unenforceability. Any term or provision of this Agreement
that is invalid or unenforceable in any situation in any jurisdiction shall not
affect the validity or enforceability of the offending term or provision in any
other situation or in any other jurisdiction. If the final judgment of a court
of competent jurisdiction declares that any term or provision hereof is invalid
or unenforceable, the remaining provisions of this Agreement shall not be
affected and the court making the determination of invalidity or
unenforceability shall have the power to delete specific words or phrases, or to
replace any invalid or unenforceable term or provision with a term or provision
that is valid and enforceable and that comes closest to expressing the intention
of the invalid or unenforceable term or provision, and this Agreement shall be
enforceable as so modified after the expiration of the time within which the
judgment may be appealed.

      6.8 Assignment. This Agreement shall be binding upon and inure to the
benefit of the parties hereto and their respective successors and permitted
assigns. This Agreement may not be assigned by either party without the prior
written consent of the other party.

      6.9 Acknowledgement and Waiver. Seller and each Guarantor acknowledge and
agree that (a) Buyer is purchasing the Sale Shares, which represent a minority
of the equity of the Company, and that Buyer may in the future agree to purchase
Shares from the Other Company Stockholders on terms that may differ from the
terms set forth in this Agreement and (b) in the event that Buyer enters into
such a transaction, Seller will not seek to challenge or enjoin such sale or
assert any claim or liability against Buyer.

      6.10 Further Assurances. Each of the parties shall and shall cause its
respective directors, officers, employees, shareholders, investors, partners,
managers, representatives, agents or affiliates to, at any time and from time to
time after the Closing, upon the reasonable request of the other party, to
execute, acknowledge and deliver or cause to be executed, acknowledged and
delivered all such further deeds, assignments, transfers, conveyances, powers of
attorney or other instruments or documents and take such other action as may be
reasonably required by the other party (at the cost and expense of the
requesting party) for the effective assigning, transferring, granting,
conveying, assuring and confirming to Buyer of the Sale Shares and otherwise to
carry out the purpose and intent of this Agreement.

                                       6
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the day and year first above written.

SELLER:                                      BUYER:

ELECTRIC AQUAGENICS UNLIMITED, INC.          TASKER CAPITAL CORP.

By: __________________________________       By: _______________________________

Name: ________________________________       Name: _____________________________
Title: _______________________________       Title: ____________________________

Witness:                                     Witness:

By:___________________________________       By: _______________________________
Name: ________________________________       Name: _____________________________

                                       7

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