Document:

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                                                                  Exhibit 10.12

                                                        BUSINESS LOAN AGREEMENT

This Business Loan Agreement (this "Agreement") is entered into as of the
date set forth below between Union Bank of California, N.A. ("Bank") and the
undersigned ("Borrower") with respect to each and every extension of credit
(whether one or more, collectively referred to as the "Loan") from Bank to
Borrower. In consideration of the Loan, Bank and Borrower agree to the
following terms and conditions:

1. THE LOAN.

   1.1   THE NOTE. The Loan is evidenced by one or more promissory notes or
         other evidences of indebtedness, including each amendment,
         extension, renewal or replacement thereof, which are incorporated
         herein by this reference (whether one or more, collectively referred
         to as the "Note").

   1.2   REVOLVING LOAN CLEAN-UP PERIOD. For any portion of the Loan which is
         a revolving loan, at least N/A consecutive days during each 12 month
         period the principal amount outstanding under such revolving loan
         must be zero.

   1.3   FEE. Borrower shall pay to Bank a fee of $5,000.00.

   1.4.  COLLATERAL. The payment and performance of all obligations of
         Borrower under the Loan Documents are and shall be during the term
         of the Loan secured by a perfected security interest in such real or
         personal property collateral as is required by Bank and each
         security interest shall rank in first priority unless otherwise
         specified in writing by Bank.

2. CONDITIONS TO AVAILABILITY OF THE LOAN. Before Bank is obligated to
   disburse all or any portion of the Loan. Bank must have received (a) the
   Note and every other document required by Bank in connection with the
   Loan, each of which must be in form and substance satisfactory to Bank
   (together with this Agreement, referred to as the "Loan Documents"), (b)
   confirmation of the perfection of its security interest in any collateral
   for the Loan, and (c) payment of any fee required in connection with the
   Loan.

3. REPRESENTATIONS AND WARRANTIES. Borrower represents and warrants (and each
   request for a disbursement of the proceeds of the Loan shall be deemed a
   representation and warranty made on the date of such request) that:

   3.1  Borrower is an individual or Borrower is duly organized and existing
        under the laws of the state of its organization and is duly qualified
        to conduct business in each jurisdiction in which its business is
        conducted;

*When "N/A" appears in a blank in this Agreement, it means the Subsection in
which it appears is deemed deleted from this Agreement. If only a portion of
a Subsection is to be deleted, it is crossed out.

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   3.2  The execution, delivery and performance of the Loan Documents
        executed by Borrower are within Borrower's power, have been duly
        authorized, are legal, valid and binding obligations of Borrower, and
        are not in conflict with the terms of any charter, bylaw, or other
        organization papers of Borrower or with any law, indenture, agreement
        or undertaking to which Borrower is a party or by which Borrower is
        bound or affected;

   3.3  All financial statements and other financial information submitted by
        Borrower to Bank are true and correct in all material respects, and
        there has been no material adverse change in Borrower's financial
        condition since the date of the latest of such financial statements;

   3.4  Borrower is properly licensed and in good standing in each state in
        which Borrower is doing business, and Borrower has complied with all
        laws and regulations affecting Borrower, including without
        limitation, each applicable fictitious business name statute;

   3.5  There is no event which is, or with notice or lapse of time or both
        would be, an Event of Default (as defined in Article 5);

   3.6  Borrower is not engaged in the business of extending credit for the
        purpose of, and no part of the Loan will be used, directly or
        indirectly, for purchasing or carrying margin stock within the
        meaning of Federal Reserve Board Reg. U; and

   3.7  Borrower is not aware of any fact, occurrence or circumstance which
        Borrower has not disclosed to Bank in writing which has, or could
        reasonably be expected to have, a material adverse effect on
        Borrower's ability to repay the Loan or perform its obligations under
        the Loan Documents.

4. COVENANTS. Borrower agrees, so long as the Loan or any commitment to make
   any advance under the Loan is outstanding and until full and final payment
   of all sums outstanding under any Loan Document, that Borrower will:

    4.1  Maintain:

       (a)  Working Capital of at least $1,000,000.00. to be measured
            quarterly  (As used herein, "Working Capital" means the excess of
            current assets over current liabilities);

       (b)  A ratio of current assets to current liabilities of at least
            N/A:1.00;

       (c)  Tangible Net Worth of at least $1,000,000.00, and subsequent to
            Borrower's IPO, $10,000,000.00, to increase by 50% of Borrowers
            net profits, measured quarterly. As used herein, "Tangible Net
            Worth" means net worth increased by indebtedness of Borrower
            subordinated to Bank and decreased by patents, licenses,
            trademarks, trade names, goodwill and other similar intangible
            assets, organizational expenses, and monies due from affiliates
            (including officers, shareholders and directors));

       (d)  Subsequent to Borrower's IPO, a ratio of total liabilities to
            Tangible Net Worth of not greater than 1:00:1.00. Subject to
            Borrower's IPO (As used herein "Tangible Net Worth" means net
            worth increased by indebtedness of Borrower subordinated to Bank
            and decreased by patents, licenses, trademarks, trade names,
            goodwill and other similar intangible assets, organizational
            expenses, and monies due from affiliates (including officers,
            shareholders and directors));

All accounting terms used in this Agreement shall have the definitions given
them by generally accepted accounting principles, unless otherwise defined
herein.

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    4.8.  Maintain adequate books, accounts and records and prepare all
          financial statements required hereunder in accordance with
          generally accepted accounting principles, and in compliance with
          the regulations of any governmental regulatory body having
          jurisdiction over Borrower or Borrower's business and permit
          employees or agents of Bank at any reasonable time to inspect
          Borrower's assets and properties, and to examine or audit
          Borrower's books, accounts and records and make copies and
          memoranda thereof.

    4.9.  At all times comply with, or cause to be complied with, all laws,
          statutes, rules, regulations, orders and directions of any
          governmental authority having jurisdiction over Borrower or
          Borrower's business, and all material agreements to which Borrower
          is a party.

    4.10. Except as provided in this Agreement, or in the ordinary course of
          its business as currently conducted, not make any loans or
          advances, become a guarantor or surety, pledge its credit or
          properties in any manner, or extend credit.

    4.11. Not purchase the debt or equity of another person or entity except
          for savings accounts and certificates of deposit of Bank, direct
          U.S. Government obligations and commercial paper issued by
          corporations with top ratings of Moody's or Standard & Poor's,
          provided that all such permitted investments shall mature within
          one year of purchase.

    4.12. Not create, assume or suffer to exist any mortgage, encumbrance,
          security interest, pledge or lien ("Lien") on Borrower's real or
          personal property, whether now owned or hereafter acquired, or upon
          the income or profits thereof except the following: (a) Liens in
          favor of Bank, (b) Liens for taxes or other items not delinquent or
          contested in good faith and (c) other Liens which do not exceed in
          the aggregate $500,000 at any one time.

    4.13. Not sell or discount any account receivable or evidence of
          indebtedness, except to Bank; not borrow any money or become
          contingently liable for money borrowed, except pursuant to
          agreements made with Bank.

    4.14. Neither liquidate, nor dissolve, nor convey, sell or lease all or the
          greater part of its assets or business.

    4.15. Not engage in any business activities or operations substantially
          different from or unrelated to Borrower's present business
          activities and operations.

    4.16. Not, in any single fiscal year of Borrower, expend or incur
          obligations of more than $1,000,000 for the acquisition of fixed or
          capital assets.

    4.17. Not, in any single fiscal year of Borrower, enter into any lease of
          real or personal property which would cause Borrower's aggregate
          annual obligations under all such real and personal property leases
          to exceed $1,000,000.

    4.18. Borrower will promptly, upon demand by Bank, take such further
          action and execute all such additional documents and instruments in
          connection with this Agreement as Bank in its reasonable discretion
          deems necessary, and promptly supply Bank with such other
          information concerning its affairs as Bank may request from time to
          time.

5. EVENTS OF DEFAULT. The occurrence of any of the following events ("Events
   of Default") shall terminate any obligation on the part of Bank to make or
   continue the Loan and automatically, unless otherwise provided under the
   Loan Documents, shall make all sums of interest and principal and any
   other amounts owing under the Loan immediately due and payable, without
   notice of default, presentment or demand for payment, protest or notice of
   nonpayment or dishonor, or any other notices or demands:

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     5.1  Borrower shall default in the due and punctual payment of the
          principal of or the interest on the Note or any of the other Loan
          Documents:

     5.2  Any default shall occur under the note or any of the other Loan
          Documents;

     5.3  Borrower shall default in the due performance or observance of any
          covenant or condition of the Loan Documents;

     5.4  Any guaranty or subordination agreement required hereunder shall be
          breached or become ineffective, or any guarantor or subordinating
          creditor shall die or disavow or attempt to revoke or terminate such
          guaranty or subordination agreement; or

     5.5  There shall be a change in ownership or control of 10% or more of
          the issued and outstanding stock of Borrower or any guarantor, or (if
          the Borrower is a partnership) there shall be a change in ownership
          or control of any general partner's interest.

6.   MISCELLANEOUS PROVISIONS.

     6.1  The rights, powers and remedies given to Bank hereunder shall be
          cumulative and not alternative and shall be in addition to all
          rights, powers and remedies given to Bank by law against Borrower
          or any other person, including but not limited to Bank's rights of
          setoff and banker's lien.

     6.2  Any forbearance or failure or delay by Bank in exercising any
          right, power or remedy hereunder shall not be deemed a waiver
          thereof and any single or partial exercise of any right, power or
          remedy shall not preclude the further exercise thereof. No waiver
          shall be effective unless it is in writing and signed by an
          officer of Bank.

     6.3  The benefits of this Agreement shall inure to the successors and
          assigns of Bank and the permitted successors and assigns of
          Borrower, and any assignment by Borrower without Bank's consent
          shall be null and void.

     6.4  This Agreement and all other agreements and instruments required by
          Bank in connection herewith shall be governed by and construed
          according to the laws of the State of California.

     6.5  Should any one or more provisions of this Agreement be determined
          to be illegal or unenforceable, all other provisions nevertheless
          shall be effective.

     6.6  Except for documents and instruments specifically referenced
          herein, this Agreement constitutes the entire agreement between
          Bank and Borrower regarding the Loan and all prior communications,
          verbal or written, between Borrower and Bank shall be of no further
          effect or evidentiary value.

     6.7  The section and subsection headings herein are for convenience of
          reference only and shall not limit or otherwise affect the meaning
          hereof.

     6.8  This Agreement may be amended only in writing signed by all parties
          hereto.

     6.9  Borrower and Bank may execute one or more counterparts to this
          Agreement, each of which shall be deemed an original, but taken
          together shall be one and the same instrument.

     6.10 Any notices or other communications provided for or allowed
          hereunder shall be effective only when given by one of the
          following methods and addressed to the respective party at its
          address given with the signatures at the end of this Agreement and
          shall be considered to have been validly given: (a) upon delivery,
          if delivered personally; (b) upon receipt, if mailed, first class
          postage prepaid, with the United States Postal

<PAGE>

          Service; (c) on the next business day if sent by overnight courier
          service of recognized standing; and (d) upon telephoned
          confirmation of receipt, if telecopied.

7.   ADDITIONAL PROVISIONS
     The following additional provisions, if any, are hereby made a part of
     this Agreement:

     7.1  Liquidity as measured by Borrower's total cash and marketable
          securities of $2,000,000.00.

     7.2  Provide the ongoing and Continuing Guarantees of any and all
          subsidiaries of Borrower to Bank, in form and substance
          satisfactory to  Bank.

THIS AGREEMENT is executed on behalf of the parties as of 3/27, 2000.

UNION BANK OF CALIFORNIA, N.A.             EMBARCADERO TECHNOLOGIES, INC.
           ("Bank")                                  ("Borrower")

By: /s/ Landis Dibble V.P.                 By: /s/ Stephen Wong
   ----------------------------               ---------------------------
Title: Vice President                      Title: CEO
Printed Name: Landis Dibble                Printed Name: Stephen Wong

Address where notices to Bank are to       Address where notices to Bank are to
be sent:                                   be sent:

Union Bank of California, N.A.             Embarcadero Technologies, Inc.
350 California Street. 10th floor          425 Market Street. Suite 425
San Francisco, CA 94104                    San Francisco, CA 94105
Attn: Landis Dibble                        Attn: Stephen Wong
Phone: (415)705-7148                       Phone: (415)834-3131
Fax: (415)705-7111                         Fax: (415)393-0161

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UNION
   BANK OF
CALIFORNIA
                            COMMERCIAL PROMISSORY NOTE

                                                                WONG/IR/12344
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Borrower Name   EMBARACEDERO TECHNOLOGIES, INC.
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Borrower Address                 Office     Loan Number
                                 70064      2595990594   0001-00-0-001
425 MARKET STREET, SUITE 425     ----------------------------------------------
San Francisco, CA 94105          Maturity Date            Amount
                                 MAY 31, 2001             $2,000,000.00
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Date  MARCH 27, 2000                                      $2,000,000.00

FOR VALUE RECEIVED, on MAY 31, 2001 the undersigned ("Debtor") promises to
pay to the order of UNION BANK OF CALIFORNIA, N.A. ("Bank"), as indicated
below, the principal sum of TWO MILLION AND NO/100 Dollars ($2,000,000.00),
or so much thereof as is disbursed, together with interest on the balance of
such principal sum from time to time outstanding, at a per annum rate equal
to the Reference Rate, such per annum rate to change as and when the
Reference Rate shall change.

As used herein, the term "Reference Rate" shall mean the rate announced by
Bank from time to time as its corporate headquarters as its "Reference Rate."
The Reference Rate is an index rate determined by Bank from time to time as
a means of pricing certain extensions of credit and is neither directly tied
to any external rate of interest or index nor necessarily the lowest rate of
interest charged by Bank at any given time. All computations of interest
under this note shall be made on the basis of a year of 365 days, for actual
days elapsed.

1.   INTEREST PAYMENTS. Debtor shall pay interest on the LAST day of each
MONTH commencing APRIL 30, 2000. Should interest not be so paid, it shall
become a part of the principal and thereafter bear interest as herein
provided.

At any time prior to the maturity of this note, the maker(s) may borrow,
repay and reborrow hereon so long as the total outstanding at any one time
does not exceed the principal amount of this note.

Debtor shall pay all amounts due under this note in lawful money of the
United States at Bank's SAN FRANCISCO COMMERCIAL BANKING Office, or such
other office as may be designated by Bank, from time to time.

2.   LATE PAYMENTS. If any installment payment required by the terms of this
note shall remain unpaid ten days after due, at the option of Bank, Debtor
shall pay a fee of $100 to Bank.

3.   INTEREST RATE FOLLOWING DEFAULT. In the event of default, at the option
of Bank, and, to the extent permitted by law, interest shall be payable on
the outstanding principal under this note at a per annum rate equal to five
percent (5%) in excess of the interest rate specified in the initial
paragraph of this note, calculated from the date of default until all amounts
payable under this note are paid in full.

4.   DEFAULT AND ACCELERATION OF TIME FOR PAYMENT. Default shall include, but
not be limited to, any of the following: (a) the failure of Debtor to make
any payment required under this note when due; (b) any breach,
misrepresentation or other default by Debtor, any guarantor, co-maker,
endorser, or any person or entity other than Debtor providing security for
this note (hereinafter individually and collectively referred to as the
"Obligor") under any security agreement, guaranty or other agreement between
Bank and any Obligor; (c) the insolvency of any Obligor or the failure of
any Obligor generally to pay such Obligor's debts as such debts become due;
(d) the commencement as to any Obligor of any voluntary or involuntary
proceeding under any laws relating to bankruptcy, insolvency, reorganization,
arrangement, debt adjustment or debtor relief; (e) the assignment by any
Obligor for the benefit of such Obligor's creditors; (f) the appointment, or
commencement of any proceedings for the appointment, of a receiver, trustee,
custodian or similar official for all or substantially all of any Obligor's
property; (g) the commencement of any proceeding for the dissolution or
liquidation of any Obligor; (h) the termination of existence or death of any
Obligor; (i) the revocation of any guaranty or subordination agreement given
in connection with this note; (j) the failure of any Obligor to comply with
any order, judgment, injunction, decree, writ or demand of any court or other
public authority; (k) the filing or recording against any Obligor, or the
property of any Obligor, of any notice of levy, notice to withhold, or other
legal process for taxes other than property taxes; (l) the default by any
Obligor personally liable for amounts owed hereunder on any obligation
concerning the borrowing of money; (m) the issuance against any Obligor, or
the property of any Obligor, of any writ of attachment, execution, or other
judicial lien; or (n) the deterioration of the financial condition of any
Obligor which results in Bank deeming itself, in good faith, insecure.

Upon the occurrence of any such default, Bank, in its discretion, may cease to
advance funds hereunder and may declare all obligations under this note
immediately due and payable; however, upon the occurrence of an event of
default under d, e, f, or g, all principal and interest shall automatically
become immediately due and payable.

5.   ADDITIONAL AGREEMENTS OF DEBTOR. If any amounts owing under this note
are not paid when due, Debtor promises to pay all costs and expenses,
including reasonable attorneys' fees, incurred by Bank in the collection or
enforcement of this note. Debtor and any endorsers of this note, for the
maximum period of time and the full extent permitted by law, (a) waive
diligence, presentment, demand, notice of nonpayment, protest, notice of
protest, and notice of every kind; (b) waive the right to assert the defense
of any statute of limitations to any debt or obligation hereunder; and (c)
consent to renewals and extensions of time for the payment of any amounts due
under this note. If this note is signed by more than one party, the term
"Debtor" includes each of the undersigned and any successors in interest
thereof; all of whose liability shall be joint and several. Any married
person who signs this note agrees that recourse may be had against the
separate property of that person for any obligations hereunder. The receipt
of any check or other item of payment by Bank, at its option, shall not be
considered a payment on account until such check or other item of payment is
honored when presented for payment at the draw bank. Bank may delay the
credit of such payment based upon Bank's schedule of funds availability, and
interest under this note shall accrue until the funds are deemed collected.
In any action brought under or arising out of this note. Debtor and any
endorser of this note, including their successors and assigns, hereby
consents to the jurisdiction of any competent court within the State of
California, as provided in any alternative dispute resolution agreement
executed between Debtor and Bank, and consents to service of process by any
means authorized by California law. The term "Bank" includes, without
limitation, any holder of this note. This note shall be construed in
accordance with and governed by the laws of the State of California. This
note hereby incorporates any alternative dispute resolution agreement
previously, concurrently or hereafter executed between Debtor and Bank.

EMBARCADERO TECHNOLOGIES, INC.

By: /s/ Stephen R. Wong       Chairman, 4/4/2000
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                                AGENCY AGREEMENT

Agreement between Laser Photonics, Inc., (CLIENT) and RUBIN EHRENTHAL &
ASSOCIATES, (AGENCY), 100 Avenue of the Americas, New York, New York 10013, for
the provision of designated advertising services for Laser Photonics, Inc. in
accordance with the following terms and conditions:

I.       SCOPE OF SERVICES

         The services to be provided by AGENCY to CLIENT under this agreement
         shall be (a) Account Services; (b) Creative Advertising Services; (c)
         Media Services; and Production and Traffic Services. AGENCY shall
         render the above referenced services for Laser Photonics, Inc. A
         description of the services to be provided to CLIENT under this
         agreement is provided hereunder. (Separate agreements for Sales,
         Medical Education and Public Relations services are contained in
         Addenda I, II, III, respectively.

         A.   ACCOUNT SERVICES

              AGENCY shall make itself available to CLIENT during the term of
              this Agreement, as requested by CLIENT and as reasonably
              appropriate to provide CLIENT with assistance in developing the
              overall marketing plans, strategies, and advertising. The
              services, as below outlined in terms 1 through 12 hereunder shall
              be known as "Account Services:"

              The AGENCY staff assigned to the Account shall be (see addendum to
              staffing assignments):

              --  Principal Supervision
              --  Management Supervisor
              --  Account Supervisor
              --  Account Executive
              --  Manager of Finance
              --  Media Services
              --  Account Traffic Coordinator
              --  Production Supervisor
              --  Medical Director
              --  Director of Strategic Planning and Market Research

<PAGE>

               These individuals, together with the other personnel of AGENCY,
               shall serve the following functions, which shall be covered as
               set forth in Paragraph I. A. and B. below.

               1.   Serving as a resource to CLIENT in the evaluation of and/or
                    development of marketing research data as it applies to
                    CLIENT's products. Providing marketing research consultation
                    in connection with this Agreement to assist in analysis and
                    recommendations of marketing strategies.

               2.   Advising CLIENT on all elements of the marketing plan as
                    above referenced through definition of objectives,
                    strategies, budget, and creative concepts.

               3.   Developing as instructed by CLIENT, a Tactical Marketing
                    Plan for and providing CLIENT with budget estimates for
                    creative advertising services (and production and media
                    services, if requested by CLIENT).

               4.   Assisting with the resolution of problems and/or questions
                    concerning the Marketing Plan.

               5.   Aiding in the evaluation of measurement parameters used in
                    determining the degree to which CLIENT marketing goals are
                    being achieved.

               6.   Providing advice and creative marketing ideas for resolving
                    CLIENT problems and taking advantage of opportunities.

               7.   Providing account management through supervision and
                    coordination for AGENCY personnel who work with CLIENT.

               8.   Providing marketing input for copy and art direction for
                    development of basic creative concepts and promotional
                    themes.

               9.   As requested by CLIENT, providing production job estimates
                    and proofing.

               10.  As requested by CLIENT, procurement and implementation of
                    original and new marketing research studies or data for
                    third party sources and obtaining bids from these suppliers.

               11.  As requested by CLIENT, attendance at sales meetings and
                    conventions.

               12.  As requested by CLIENT, obtaining medical consultation and
                    services.

<PAGE>

         B.   CREATIVE ADVERTISING SERVICES

              AGENCY shall implement the Tactical Marketing Plan, developed by
              or with CLIENT during the term of this agreement, through the
              creation and execution of the advertisements and promotional
              materials that are contained therein. As the needs of the business
              dictate, changes to Tactical Plan elements are inevitable. As
              changes occur, AGENCY shall obtain CLIENT's written approval of
              the change and provide CLIENT with a description thereof and the
              revised estimated cost for approval. All services rendered (other
              than Account Services as set forth in Paragraph I. A.1 - 12 above)
              and products or materials created or produced by AGENCY in the
              implementation of the Tactical Plan during the term of this
              Agreement shall be considered Creative Advertising Services.
              Creative Advertising Services include, but are not necessarily
              limited to:

              1.      copy supervision, preparation and copywriting;

              2.      art supervision, design and comprehensives;

              3.      proofreading and editing;

              4.      preparation of mechanicals, computerized or traditional;

              5.      printing approval and color corrections.

         C.   MEDIA SERVICES

              AGENCY shall implement the media plans developed with CLIENT
              during the term of this agreement. Media Services include, but are
              not necessarily limited to:

              1.      media planning;

              2.      competitive analysis;

              3.      maintenance of media schedules;

              4.      placement of insertion orders and invoicing.

              These services include the use of both AGENCY personnel time and
              outside services. Out-of-pocket expenses for access to readership
              audits and on-line media services will be passed on directly to
              CLIENT by billing at net, with no additional costs or commissions
              added. Commission on gross media costs is 15%.

<PAGE>

              You acknowledge that, in placing your advertising with various
              media, AGENCY will contract with such media on the basis of
              "sequential liability" pursuant to which AGENCY shall be solely
              liable for payment to the extent that proceeds have cleared from
              you as advertiser to AGENCY for advertising published or broadcast
              in accordance with the contract. As advertiser, you will remain
              solely liable for sums owing but not cleared to the AGENCY in
              respect to such advertising.

              Accordingly, you hereby authorize and agree that AGENCY may
              contract with media on your behalf on the basis of sequential
              liability, and that you will be solely liable to media with
              respect to payments for such space or time to the extent that such
              payments have not cleared to the AGENCY.

              Solely, to the forgoing extent, AGENCY will act as agent for you
              as disclosed principal in entering into contracts with media, and
              a copy of this paragraph may be presented to media and/or other
              third parties as evidence of AGENCY's authority to act in such
              capacity for such purpose.

              So that AGENCY, or any of its subsidiaries, can satisfy its
              obligations to pay for media that is to be used on behalf of
              CLIENT. CLIENT shall pay for its media in full prior to the media
              commitment dates (release of the insertion order by the AGENCY) or
              shall establish an irrevocable letter of credit with a lending
              institution acceptable to AGENCY in an amount sufficient to cover
              ongoing media commitments. In this regard, CLIENT acknowledges
              that AGENCY may currently commit to a media purchase on behalf on
              CLIENT with a media buying service. If necessary, CLIENT shall
              have such letter of credit in place no later than the date that
              AGENCY has to exercise a media commitment. AGENCY shall be under
              no obligation to place media for which it has not received
              complete payment and where such letter of credit is not in place,
              if required. To the extent CLIENT does not timely advance funds to
              AGENCY so that AGENCY may timely pay media, AGENCY shall have the
              right to draw down such sums as are then due to media by
              presentment to the lending institution issuing the letter of
              credit.

II.       AGENCY AUTHORIZATIONS FOR OUTSIDE SERVICES

          A.   AGENCY shall have the right to procure all reasonable or
               necessary outside services and materials, including audio-visual
               services, printing, telegrams, express mail, courier services,
               freight, and similar services in the name of and for the benefit
               of CLIENT and to require reimbursement for such outside services;
               provided, however, that (1) AGENCY receives prior written
               approval for the procurement of same from CLIENT, and (2) AGENCY
               provides CLIENT with reasonable and satisfactory documentation of
               the actual cost of the outside services and materials. Prior to

<PAGE>

               purchasing such goods or services, or entering into any legal
               commitments therefore, AGENCY shall (1) comply with provisions
               set forth in B. and C. below and with any other previously
               received specific instruction of CLIENT or with any written
               policy of CLIENT concerning the procurement of bids or proposals
               thereof or the receipt of purchase orders prior to proceeding to
               make such commitments; and (2) determine that CLIENT has not
               elected to provide or procure such goods or services itself.

          B.   Prior to contracting for any specific purchase of these goods or
               services which exceeds $20,000, excluding typesetting costs,
               laser color prints, retouching, photography, and illustrations,
               and which is available from a number of competitive suppliers,
               AGENCY shall obtain bids from three such CLIENT suppliers and
               recommend to CLIENT the supplier from which procurement of the
               goods and/or services would be most appropriate. CLIENT shall
               then notify AGENCY as to which competitive supplier to use.

          C.   AGENCY shall maintain, and on request in a timely and reasonable
               manner, provide CLIENT with complete documentation for all
               procurements of goods and services.

III.      PAYMENT FOR SERVICES AND REIMBURSEMENT OF EXPENSES

          A.   MONTHLY FEE FOR ACCOUNT SERVICES

               In return for all of the Account Services rendered by the Account
               Management personnel set forth in Paragraph I.A. 1 - 12 above,
               other than as specifically provided in Paragraph B. below, AGENCY
               shall receive the annual sum of $479,960, in equal monthly
               installments of $39,996.67 per month (Exhibit A), to be invoiced
               30 days in advance of each month.

               The fee will be subject to review by both parties every three
               months. The AGENCY and CLIENT agree that this fee, by product, is
               based on an estimate of hours activity as currently anticipated.
               Therefore, this fee will be reconciled every three months against
               actual hours worked by AGENCY during such period.

               If AGENCY has worked more than the estimated hours on behalf of
               CLIENT hereunder during any three month period hereunder then the
               AGENCY will invoice these unreimbursed hours, at a cost of $104
               per hour.

<PAGE>

         B.    CREATIVE ADVERTISING SERVICES

               AGENCY shall invoice CLIENT for Creative Advertising Services on
               an hourly fee basis at the rate of $104 per hour. Work will not
               begin on a specific project until a CLIENT project form has been
               completed and a code number assigned by CLIENT. AGENCY shall
               maintain detailed records of specific Creative Advertising AGENCY
               Services rendered and times expended therefore and shall provide
               same to CLIENT upon request in a reasonable and timely manner.
               AGENCY shall not exceed the budgeted estimates for Creative
               Advertising Services or for other Production Services which have
               been specifically requested by CLIENT by more than ten percent
               (10%) for any Tactical Plan item or project element without the
               prior, written approval of CLIENT. AGENCY's invoices shall
               identify specific Tactical Plan items for which Creative
               Adverting and/or Production Services have been rendered.
               (Exhibits B, C, D, E)

          C.   REIMBURSEMENT OF AGENCY EXPENSES

               CLIENT shall reimburse AGENCY for all reasonable and documented
               out-of-pocket expenses which have been approved by CLIENT (in
               writing, if applicable) in connection with performing Account
               Services and Creative Advertising Services, including travel and
               living expenses, airline tickets, car rental expenses and long
               distance telephone expense charges for all AGENCY personnel
               authorized by CLIENT to make the trip. These expenses shall be
               billed and paid for monthly.

          D.   PAYMENT OF REIMBURSEMENT FOR OUTSIDE SERVICES: NO COMMISSION OR
               PAYMENT

               1.   If requested by AGENCY, all payments incurred or committed
                    to by AGENCY for services and materials procured outside of
                    AGENCY in connection with, but beyond the scope of, Creative
                    Advertising Services shall either be paid by CLIENT in
                    advance or directly to the provider of the outside service
                    or materials, or reimbursed by CLIENT to AGENCY following
                    CLIENT's receipt of reasonable and satisfactory
                    documentation of the cost of the outside services or
                    materials, if no request for direct or advanced payment is
                    made by AGENCY.

<PAGE>

                    AGENCY shall charge no commission (except for media),
                    handling or other charge to CLIENT for procurement of such
                    services or materials. Any discount, rebate or other
                    allowance paid to AGENCY by a supplier which is not
                    reflected in the original billing shall be credited to
                    CLIENT in the next billing to CLIENT under this Agreement.

               2.   CLIENT shall also reimburse AGENCY for the actual cost of
                    procuring marketing data or research studies from third
                    parties as requested by CLIENT in connection with, but
                    beyond the scope of the performance of AGENCY's services.
                    All direct payments or reimbursements shall be made monthly
                    upon presentation of AGENCY's invoices and reasonable
                    documentation of actual cost.

          E.   All AGENCY invoices are to be paid by CLIENT within 15 days of
               receipt of AGENCY's invoices. All past due invoices will incur a
               finance charge of 1 1/2% per month.

          F.   RECORDS

               AGENCY shall, during the course of this Agreement and for one
               year thereafter, keep and make available to CLIENT for inspection
               at all reasonable times, time, cost and expense records in
               connection with fees and expenses, including outside expenses
               incurred and services and materials procured by AGENCY under this
               Agreement

IV.       COPYRIGHTS: TITLE TO PROPERTY

          A.   ACQUISITION OF COPYRIGHTS

               AGENCY shall take the steps necessary to secure on behalf of
               CLIENT and in CLIENT's name, copyrights to all copyrightable
               materials produced under this Agreement which shall include, but
               not necessarily be limited to, the giving of all requisite
               statutory notice with the first and all other publications of
               such materials and filing of a claim or copyright for such
               materials with the United States Patent Office when, and if,
               required.

<PAGE>

          B.   EXCLUSIVITY

               CLIENT shall own all such copyrights, and they shall own and have
               exclusive royalty-free right to use all non-copyrightable
               material produced hereunder. AGENCY shall not use any
               copyrightable or non-copyrightable material produced hereunder
               for any purpose other than in this or any future project done by
               CLIENT without the express written permission of CLIENT.

          C.   TITLE AND PROPERTY

               All advertisements and promotional materials prepared, purchased
               or furnished by AGENCY for CLIENT under this Agreement become
               CLIENT's property with right of copyright, and shall be preserved
               for delivery to CLIENT upon request only if AGENCY has been fully
               paid by CLIENT for its services and costs. CLIENT shall have the
               right to use all such materials wherever and whenever it chooses.

V.        CONFIDENTIALITY

          AGENCY shall keep in confidence and shall not disclose or use for the
          benefit of others, any and all information, plans, strategies, and/or
          materials produced hereunder for CLIENT or provided to it by CLIENT
          except as necessary to carry out this agreement (1) as specifically
          authorized by CLIENT; or (2) as otherwise authorized by CLIENT in
          writing. The restriction will survive performance and/or termination
          of this Agreement for a period of five years. Further, AGENCY shall
          assure that no unpublished material prepared for its former CLIENTS
          are disclosed to CLIENT, and shall not disclose to CLIENT any plans,
          strategies or other information which is a trade secret of any former
          CLIENT for AGENCY.

VI.       TERM

          The term of this Agreement shall commence on May 11, 1999 and shall
          continue in effect until terminated by either party as below provided
          in Paragraph VII hereunder. Any renewal or continuation of this
          Agreement beyond May 10 of any year shall be by written Agreement and
          signed by both CLIENT and AGENCY.

VII.      TERMINATION

          Both parties shall have the right to terminate this Agreement, in
          whole or in part, with or without cause, upon 90 days written notice
          to the other party. In the event that CLIENT elects to terminate this
          Agreement, AGENCY shall not undertake further work, incur

<PAGE>

          additional expenses or enter into further commitments with regard to
          this Agreement after receipt of notice of termination from CLIENT
          unless requested by CLIENT to complete works in progress. AGENCY shall
          be entitled to receive payment of the monthly Account Service Fee for
          the three-month period following such notification. Further, upon
          submission of reasonable documentation to CLIENT, AGENCY shall be
          entitled to receive payment for all Creative Advertising Services
          actually performed, (based on costs of materials and established pay
          rates for such services as provided in Paragraph III B above); for
          out-of-pocket expenses and for noncancelable commitments actually
          entered into with regard to this Agreement prior to AGENCY's receipt
          of CLIENT's notice of termination. Further, in the event of
          termination of this Agreement by CLIENT, the total owed to AGENCY by
          CLIENT shall not exceed the annual sum of Account Services and the
          budgeted amounts for Creative Advertising, Production and Outside
          Services. If the amount that CLIENT has previously paid to AGENCY
          exceed the amount that AGENCY is actually owed, AGENCY shall reimburse
          the balance to CLIENT within 45 days of receipt of CLIENT's notice of
          termination. Likewise, AGENCY shall provide CLIENT with all materials
          and work in progress prepared under this Agreement at the time of
          termination, once total payment is received by AGENCY.

VIII.     INDEPENDENT CONTRACTOR

          AGENCY shall function as an independent contractor and shall not hold
          itself out as an agent of CLIENT or represent that it has the capacity
          to bind CLIENT in any way; provided, however, any work performed by
          AGENCY under this Agreement shall be deemed work for hire by CLIENT.

IX.       ASSIGNMENT

          Except as otherwise provided herein, neither party to this Agreement
          shall delegate any of its duties nor assign any of its rights under
          this Agreement to a third party without the express written permission
          of the other, and such consent shall not be unreasonably withheld.

X.        MISCELLANEOUS

          AGENCY represents that it is not currently debarred, suspended or
          otherwise excluded by Government Agencies from receiving Federal
          Contracts.

XI.       CONFLICT OF INTEREST

          AGENCY warrants that it does not currently have a conflict of interest
          with a CLIENT

<PAGE>

          competitor pharmaceutical company or any other company for this type
          of project; and that it shall not enter into a contractual agreement
          for a similar therapeutic product with any CLIENT competitor or other
          company during the term of this Agreement from which a conflict of
          interest issue could arise without the prior, written approval of
          CLIENT. Further, AGENCY agrees to indemnify and hold harmless CLIENT
          from and against any and all losses, claims, damages, expenses or
          liabilities, including attorney's fees, which CLIENT may incur as a
          result of contractual arrangements entered into between AGENCY and
          another company prior to entering into this Agreement, or during the
          term of this Agreement.

XII.      INDEMNIFICATION

          AGENCY will indemnify and hold harmless CLIENT, servants and
          employees, against all losses, claims or suits, excluding those by or
          before administrative agencies, based upon AGENCY's activities
          hereunder, and pertaining to libel, slander, defamation or any
          infringement of copyright or of title or of slogan or piracy,
          plagiarism or idea misappropriation under implied contract or any
          invasion of privacy. AGENCY shall have the right to control the
          defense of all such proceedings and to select and engage counsel of
          its choice, consulting with CLIENT, and CLIENT shall cooperate fully
          with AGENCY in such defense; provided, however, that CLIENT shall not
          settle any such claims or suits without the proper written consent of
          the AGENCY. The above indemnity does not apply to any matter furnished
          AGENCY by CLIENT or submitted to CLIENT by third parties, or to any
          other claim for which AGENCY is entitled to indemnification from
          CLIENT as provided below. CLIENT shall indemnify and hold AGENCY
          harmless in respect of claims (a) of third parties based on any
          written matter furnished AGENCY by or through CLIENT in connection
          with the services to be rendered by AGENCY hereunder; (b) based upon
          the nature or use of CLIENT's products or services or (c) based upon
          any materials created, produced or prepared by AGENCY and which are
          approved by CLIENT or which are used in any manner other than as
          intended. Upon the filing of any suit or claim CLIENT's attorneys
          (which attorneys shall be reasonably satisfactory the AGENCY) shall
          defend AGENCY and AGENCY shall permit such attorneys, at CLIENT's
          discretion and cost, to handle and control the defense of any such
          claims or suits and provided further, that no party shall settle any
          such claims or suits without the proper written consent of CLIENT.

XIII.     CHANGES IN AGREEMENT

          No changes may be made in this Agreement except by written agreement
          by the parties hereto.

XIV.      COMPLETE UNDERSTANDING

          This agreement is the entire and complete understanding between CLIENT
          and AGENCY in regard to the subject matter covered herein. It
          replaces, supersedes and renders void any and all predecessor

<PAGE>

          Agreements, if any, made between the parties, whether written or oral,
          and pertain to the covered subject matters.

XV.       GOVERNING LAW

          This Agreement shall be construed, interpreted and enforced under the
          laws of the State of New York.

If the terms of the foregoing meet with your approval, please indicate your
acceptance by signing both copies of this Agreement and returning one.

Accepted and agreed to:

By:      /s/  Chaim Markheim
   ------------------------------------
         Chaim Markheim                                          5/11/99
         Chief Operating Officer
         Chief Financial Officer
         Laser Photonics, Inc.

By:      /s/ Steve Girgenti
   ------------------------------------
         Steve Girgenti                                          5/11/99
         Chairman and CEO
         Healthworld Corporation

<PAGE>

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
                                    EXHIBIT A
                                 MANAGEMENT FEE

-------------------------------------------------------------------------------
EMPLOYEE                             POSITION                      ANNUAL HOURS
-------------------------------------------------------------------------------
<S>                               <C>                              <C>
Herb Ehrenthal                    President                                 240

-------------------------------------------------------------------------------
Ernestine McCarren                General Manager                           360

-------------------------------------------------------------------------------
Frank Hone                        Management Director                       360

-------------------------------------------------------------------------------
Vincent Stahl                     Management Supervisor                     800

-------------------------------------------------------------------------------
Marianne Jasmine                  Account Supervisor                        360

-------------------------------------------------------------------------------
Renee Hyler                       Account Executive, Consumer               420

-------------------------------------------------------------------------------
TBD                               Account Executive, Medical                800

-------------------------------------------------------------------------------
TBD                               Administrative Assistant                  795

-------------------------------------------------------------------------------
Leo Brandstatter                  Strategic Planner                         300

-------------------------------------------------------------------------------
Peggy Schwende                    Market Research                           180

-------------------------------------------------------------------------------
TOTAL                                                                     4,615

-------------------------------------------------------------------------------
HOURLY FEE                                                            $     104

-------------------------------------------------------------------------------
TOTAL FEE                                                             $ 479,960

-------------------------------------------------------------------------------

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

 ------------------------------------------------------------------------------
                                    EXHIBIT B
                         MEDICAL PROMOTION FEE SCHEDULE
                       PROJECTS INCLUDED IN THIS AGREEMENT

-------------------------------------------------------------------------------
                                FEE               OOP               TOTAL

-------------------------------------------------------------------------------
<S>                         <C>                <C>               <C>
Strategic Planning            40,000                  0            40,000

-------------------------------------------------------------------------------
Direct Mail                   30,400             12,000            42,400

-------------------------------------------------------------------------------
Teleconference                18,400             12,000            30,400

-------------------------------------------------------------------------------
Franchise Kit                 25,600              8,000            33,600

-------------------------------------------------------------------------------
Monograph                     12,000             75,000            87,000

-------------------------------------------------------------------------------
Visual Aid                    36,000             10,000            46,000

-------------------------------------------------------------------------------
Journal Ad                    36,000             15,000            51,000

-------------------------------------------------------------------------------
Ad Space                           0             15,000            15,000

-------------------------------------------------------------------------------
Direct Mail                   16,800             24,000            40,800

-------------------------------------------------------------------------------
Exhibit Booth                 48,000             40,000            88,000

-------------------------------------------------------------------------------
Clinical Reprints              1,600              8,000             9,600

-------------------------------------------------------------------------------
Website/Management            32,000            360,000           392,000

-------------------------------------------------------------------------------
TOTAL                       $296,800           $579,000          $875,800

-------------------------------------------------------------------------------

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
                                    EXHIBIT C
                               DIRECT-TO-CONSUMER
                       PROJECTS INCLUDED IN THIS AGREEMENT

-------------------------------------------------------------------------------
        PROJECT                   FEE               OOP               TOTAL

-------------------------------------------------------------------------------
<S>                         <C>                <C>               <C>
Advertising / Marketing         144,000          4,360,000          4,504,000

-------------------------------------------------------------------------------
Psoriasis Advertorial            56,000            470,000            526,000

-------------------------------------------------------------------------------
Internet                        104,000            300,000            404,000

-------------------------------------------------------------------------------
Office Material                  32,000            110,000            142,000

-------------------------------------------------------------------------------
Total                          $336,000         $5,240,000         $5,576,000

-------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
                                    EXHIBIT D
                                 MARKET RESEARCH
                       PROJECTS INCLUDED IN THIS AGREEMENT

-------------------------------------------------------------------------------
        PROJECT                   FEE               OOP               TOTAL

-------------------------------------------------------------------------------
<S>                         <C>                <C>               <C>
Secondary Research             4,800               28,000               32,800

-------------------------------------------------------------------------------
Field Trip                         0                2,500                2,500

-------------------------------------------------------------------------------
MD Exploratory                 2,880               24,000               26,880

-------------------------------------------------------------------------------
Consumer Exploratory           9,600               40,000               49,600

-------------------------------------------------------------------------------
Consumer Concept Testing      14,400               80,000               94,400

-------------------------------------------------------------------------------
Consumer Communication Test    7,200               60,000               67,200

-------------------------------------------------------------------------------
MD Disaster Check              3,840               20,000               23,840

-------------------------------------------------------------------------------
Consumer A & U                14,400               80,000               94,400

-------------------------------------------------------------------------------
TOTAL                        $57,120             $334,500             $391,620

-------------------------------------------------------------------------------

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
                                    EXHIBIT E

                                  MANAGED CARE

                       PROJECTS INCLUDED IN THIS AGREEMENT

-------------------------------------------------------------------------------
        PROJECT                   FEE               OOP               TOTAL

-------------------------------------------------------------------------------
<S>                         <C>                <C>               <C>
Project Management               84,000                              84,000

-------------------------------------------------------------------------------
Market Research                                     34,000           34,000

-------------------------------------------------------------------------------
Pharmacoeconomic model                              35,000           35,000

-------------------------------------------------------------------------------
Monograph                                           60,000           60,000

-------------------------------------------------------------------------------
Clinical Reprints                                    5,000            5,000

-------------------------------------------------------------------------------
Formulary Binder                                     4,000            4,000

-------------------------------------------------------------------------------
Presentation Binder                                 30,000           30,000

-------------------------------------------------------------------------------
Announcement Mailing                                15,000           15,000

-------------------------------------------------------------------------------
NHMCC (to be decided)                               75,000           75,000

-------------------------------------------------------------------------------
TOTAL                           $84,000           $258,000         $342,000

-------------------------------------------------------------------------------

</TABLE>

<PAGE>

                                   ADDENDUM I

                     HEADCOUNT/LASER PHOTONICS INCORPORATED

                               LETTER OF AGREEMENT

This is to serve as our Letter of Agreement, made and entered into as of the
11th day of May, 1999, whereby Headcount agrees to complete calls for Laser
Photonics Incorporated for Laser Photonics Excimer Laser to targeted physicians,
managed care personnel and other targeted individuals during a seven-month
period beginning October 1, 1999 through April 30, 2000.

The total program would be divided into two parts:

MANAGED CARE PROGRAM

Two dedicated, full-time managed care specialty representatives will start
October 1, 1999. Their responsibility would be to call on managed care and
insurance company headquarters to educate them on Laser Photonics Excimer Laser
and to establish reimbursement procedures from them for the Laser Photonics
Incorporated laser treatment. The cost for these two representatives will be
$30,000/month. Headcount will provide management for these representatives.

The cost for the seven-month program is $210,000.

DERMATOLOGY SALES FORCE

Headcount will deploy and manage a selling team comprised of 20 dedicated
flextime sales representatives. Each will deliver an average of 100 hours per
month making calls against the identified Laser Photonics Incorporated targets
(Dermatologists and FP/GPs). The approved targets will be located within a
45-mile radius of each territory center. Headcount defines a completed call as
an active face-to-face exchange with a healthcare professional, at which time
the product is discussed and product information is offered. This sales force
will produce 8,000 hours of detailing activity in the period January 3, 2000
through April 30, 2000. The cost would be $400,000 based on an hourly coverage
rate of $50/hour. In addition to the selling cost there is a one-time $100,000
recruiting fee for this portion of the program.

Total cost for the four-month program is $500,000.

In addition to the costs listed above, Headcount assumes that there would need
to be an initial training meeting for the Dermatology Sales Representatives. We
assume the representatives would need 5 days for training (1 day for pre-reading
plus a 4-day initial training meeting that would allow for travel both to and
from the

<PAGE>

meeting). Costs for this meeting are estimated at $40,000 and are enclosed in
attachment A. These cost would be billed separately.

MANAGEMENT

Headcount will provide field management for both program as well as headquarter
management support for the entire program. The fee for this management support
is $10,000/month for a total cost of $70,000 for the program period.

The total cost for both the Managed Care and Dermatology Sales Program with
management (not including initial training) is $780,000.

Included in Headcount's basic selling costs are the following items:

1.   Total recruiting expenses throughout the contract period. This includes
     recruiting expenses for any turn that may occur.

2.   All field-related expenses for the professional sales representatives and
     field management. These include auto expenses, parking, tolls, and
     miscellaneous supplies.

3.   All Headcount headquarters management expenses in the field connected with
     assessment of field performance and including normal performance
     reviews/planning sessions.

4.   The standardized Headcount call reporting and sample accountability service
     and monthly reporting.

5.   All salaries, taxes and benefits for field representatives and management
     as well as the Headcount payroll and administrative services systems for
     all representatives and management hired.

6.   Headcount Filed & Customer Services support to co-ordinate all field
     shipments, field communications and meeting logistics.

7.   Quarterly Performance Improvement testing of all representatives on
     products and policies thoughout the term of the program.

Lasers Photonics Incorporated will pay actual costs, subject to its written
pre-approval, for the following additional items for representatives and
appropriate Headcount Management:

1.   All out-of-pocket and time related expenses for the Introductory Training
     Meeting. This will include representative time at a rate of $100/day per
     representative, or an agreed upon flat rate plus hotel, airfare, meals and
     miscellaneous incidentals. (see attachment A)

<PAGE>

2.   All out-of-pocket and time related expenses for attendance at the follow-up
     Sales Meetings.

3.   Regular Laser Photonics Incorporated sales bags/folders and business cards
     for the field representatives in order to project a "total Company
     identity" to the physicians that will be called on.

4.   All out-of-pocket expenses related to client requested territory close outs
     including incremental travel, shipment of all returned samples, promotional
     materials and detail bags.

5.   All detailing selling aids/miscellaneous materials plus coupons/samples
     distributed to the targeted physicians through Headcount field
     representatives (plus any outside handling/fulfillment service expenses).
     In this respect, we would work closely with you and your agency to add
     strategic thinking and a practical field point-of-view on all materials.

6.   All expenses related to Laser Photonics Incorporated management visits to
     the field/Headcount headquarters and sales meetings.

PAYMENT

Headcount payments for detailing services will be due quarterly. The first
payment will be due upon signing of this agreement and will be $220,000.
Included in this payment would be the October-December 1999 Managed Care Program
costs of $90,000, the October-December 1999 Management Fee of $30,000 plus the
one time recruiting fee of $100,000. On December 15, 1999 the January-March 2000
payment will be due in the amount of $420,000. This would include the Managed
Care Program costs of $90,000, the Dermatology Sales Program costs of $300,000
and the Management Fee cost of $30,000. On March 15, 2,000 the final payment
will be due for April 2000 activity. This will amount to $140,000 and include
cost for the Managed Care Program of $30,000, the Dermatology Sales Program
costs of $100,00 and the Management Fee of $10,000. Time related representative
costs for initial training/follow-up sales meetings will be due 15 days prior to
the meeting date with all incidental meeting charges due 30 days following the
meeting.

A late fee of 1.5% per month will be charged to Laser Photonics Incorporated for
all late payments.

Headcount requests funds be wired to:

         The Chase Manhattan Bank N/A
         52 Broadway, 6th Floor
         New York, NY 10004
         212-701-5396
         Bank Code 021 00 0021

<PAGE>

         For the benefit of:

         Headcount LLC
         100 Avenue of the Americas, 8th Floor
         New York, NY 10013-1687
         1-888-432-3268
         A/C #777008262

GENERAL PROVISIONS

Headcount will provide monthly status reports of its coverage to Laser Photonics
Incorporated and will work closely with Laser Photonics Incorporated to provide
ideas/advice on increasing professional support levels. Automated call reporting
and sampling data computerized call reports, summarized monthly, will be
available for Laser Photonics Incorporated to review following the close of the
months activity.

Laser Photonics Incorporated may cancel the Agreement before its scheduled
termination upon ninety (90) days written notices to Headcount. Laser Photonics
Incorporated shall be liable for payment of all completed hours made through the
date of cancellation, all pre-approved expenses incurred through such date which
are not recoverable and all costs associated with closing out the
representatives including shipment of materials. Additionally, Laser Photonics
Incorporated shall be liable for a cancellation charge of $25 per hour for each
hour originally planned and not executed for the Dermatology Program following
cancellation. Laser Photonics Incorporated has the option to extend this
Agreement but Headcount would need a firm decision from Laser Photonics
Incorporated on this matter by January 30, 2000 so Headcount does not assign
this field force to another manufacturer.

Laser Photonics Incorporated additionally agrees that it will not employ any
Headcount representative or manager assigned to this program during this
Agreement. At the completion of field activity representative and field
management will be available for rollover to the employ of Laser Photonics
Incorporated for a transfer fee of $7,500 per person.

All information, data and know-how concerning the operation, structure,
personnel, research, products and plans of the Laser Photonics Incorporated
businesses disclosed to Headcount shall be held in strictest confidence.

Laser Photonics Incorporated agrees that all claims, statements and
representations which Laser Photonics Incorporated directs to be made in
connection with the promotion of Laser Photonics Incorporated products
represented by Headcount will be subjected to, and authorized under, Laser
Photonics Incorporated regular scientific and legal/regulatory review process.
Headcount agrees that its representatives will make no claim, statement or
representations Laser Photonics Incorporated products other than claims,
statements and representations that have been so authorized and approved by
Laser Photonics Incorporated.

Laser Photonics Incorporated agrees to indemnify and hold Headcount harmless
from all costs, including reasonable attorney fees, resulting from any charges
or claims alleged to have arisen out of the sale, distribution or use of Laser
Photonics Incorporated products or the publication/distribution of any materials
authorized by

<PAGE>

Laser Photonics Incorporated provided that Headcount shall promptly notify Laser
Photonics Incorporated of such charges or claims. Headcount agrees that it will
permit Laser Photonics Incorporated to control the defense, select counsel and
institute settlement of any charges or claims as part of this agreement and will
cooperate fully with Laser Photonics Incorporated in the defense of such claims.

Headcount agrees to indemnify and hold Laser Photonics Incorporated harmless
from all costs, including reasonable attorney fees, resulting from any charges
or claims alleged to have arisen out of any breach of Headcount of this
Agreement or from the negligent, intentionally wrongful or unauthorized
activities of Headcount and/or Headcount representatives and from any employment
related claims filed against Laser Photonics Incorporated by Headcount
representatives.

Headcount recognizes and agrees that is it acting under this Agreement as an
independent contractor. Neither Headcount nor its employees, agents or
representatives shall be considered employees of Laser Photonics Incorporated
and neither party shall be held liable or accountable for any obligations
incurred by the other party, except as specified herein, it being specifically
understood that the respective businesses of the parties are operated separately
and apart form each other.

IN WITNESS WHEREOF, the parties have executed this Letter of Agreement the day
and year written below:

HEADCOUNT                               LASER PHOTONICS INCORPORATED

By:                                     By:
   ------------------------------          ---------------------------------
Title:                                  Title:
      ---------------------------              -----------------------------
Date:                                   Date:
     ----------------------------            -------------------------------

<PAGE>

                                  ATTACHMENT A

                    ESTIMATED INTRODUCTORY TRAINING EXPENSES

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
                                   # Persons                      Est. $
-------------------------------------------------------------------------------
<S>                                <C>                            <C>
AIR
@ $600/flight                            22                          13,200

HOTEL
@ $150/night x 3 nights                  12                           5,400

MEALS
@ $75/day x 4 days                       22                           6,600

INCIDENTALS
@ $50/pp                                 22                           1,100

MEETING EQUIPMENT                                                     3,700

REPRESENTATIVE MEETING TIME              20                          10,000
@ $100/day x 4 days

-------------------------------------------------------------------------------
TOTAL                                                               $40,000

-------------------------------------------------------------------------------

</TABLE>

<PAGE>

                                   ADDENDUM II

                                MEDICAL EDUCATION

                               LETTER OF AGREEMENT

The purpose herein is to set forth the services to be provided to the client by
Medical Education Technologies, Inc.("MET"), the compensation in fees and
reimbursements of out-of-pockets (OOPs) to be paid to MET in recognition of
services,

TERM OF SERVICES

MET shall begin providing the services stipulated in this agreement and
attachments hereto immediately upon signature of this agreement by stipulated
parties MET shall provide said services for one year, the life of this
agreement.

MET'S RESPONSIBILITIES IN PROVIDING SERVICES

MET shall be responsible for the development of programs and content,
organization and management, and implementation for the education tactics in the
schedule of medical education launch budgets attached to and a part of this
document.

These responsibilities will include all editorial development; identification
and recruitment of participating physicians; negotiations with medical societies
and medical journals; CME accreditation for CME tactics; logistical planning and
arrangements for necessary travel, hotel accommodations, catering, and meeting
facilities; ground transportation; audiovisual equipment and technicians;
design/layout and production of print and other enduring materials; and
follow-up, including payment of physician honoraria and other related OOPs in a
timely fashion.

MET shall inform the client regarding steps of development and implementation
through consultations and status reports on a need-to-know and regular basis as
mutually determined.

COMPENSATION FOR MET'S SERVICES

MET WILL BE COMPENSATED IN VARYING AMOUNTS ON A MONTHLY BASIS ACCORDING TO THE
ATTACHED PAYMENT SCHEDULE FROM THE DOCUMENT, PROPOSED LAUNCH BUDGETS, US
MARKETS.

CLIENT-APPROVED BUDGETS FOR OUT OF POCKETS (OOPS)

MET shall provide the client with line-item estimates of OOPs for approval when,
through consultations,

<PAGE>

specifications for education tactics are finalized. MET will proceed with
implementation of tactics when OOP estimates are approved.

All estimates will be +/- 15% of total OOP estimate.

After client approvals, any increases that will cause OOP budgets to exceed 15%
of the total estimate must be client-approved in writing.

REIMBURSEMENT OF OOPS

MET will provide 2 to 3 invoices for the OOPs on each tactic, depending on total
estimate. Estimates under $50,000 shall be invoiced in halves; over $50,000, in
thirds. MET will provide a reconciliation when each tactic is completed and,
upon request, documentation of OOPs.

CME AGREEMENTS

For tactics that are CME accredited, MET will assure that three-party CME
agreements between the Office of Continuing Medical Education (the
sponsor/provider), MET (the facilitator, organizer, and possibly co-sponsor),
and the client (the supporter) are drawn and executed as prescribed by the
American Council of Continuing Medical Education (ACCME).

MET shall abide by ACCME and AMA regulations and guidelines in developing,
managing, and implementing CME programs and will provide guidance to the client
in order that the client also abides by ACCME and AMA regulations and guidelines
in providing permissible input, such as clinical results.

STANDARD AGENCY/CLIENT CONTRACTUAL CLAUSES

MET, as independent contractor, is a party to and shall be held liable under
clauses in the executed agreement between the client and GHBM Healthworld
regarding confidentiality, ownership of work-for-hire and produced materials,
copyrights, indemnities, liabilities, workman's compensation insurance, FDA
debarment, and termination/expiration of this agreement.

<PAGE>

TACTICS INCLUDED UNDER THIS AGREEMENT

Under this Agreement, MET shall develop and implement the following tactics for
advocate building and physician education:

<TABLE>
<CAPTION>

Tactic                                     Fee                    OOP                 TOTAL

<S>                                      <C>                  <C>                   <C>
Advocate Building                        22,800                      --               22,800

Editorial Development                    48,000                      --               48,000

One (1) Review Article                   18,000                   7,500               25,500

3 Clinical Articles                      33,000                  15,000               48,000

3 Posters / Abstracts                    12,000                   6,000               18,000

2 Advisory Board Meetings                56,000                  60,000              116,000

3 Regional Advisory Boards               72,000                 150,000              222,000

CME Symposium                            52,000                  85,000              137,000

Video                                     8,000                  50,000               58,000

Slide Kit                                 4,000                  20,000               24,000

TOTAL                                  $325,800                $393,500             $719,300

</TABLE>

WARRANTY

MET warrants that MET is legally able to enter into an education services
agreement with Laser Photonics and that such agreement does not conflict with
any agreement, understanding written or oral to which MET is a party or by which
is bound.

<PAGE>

                                  ADDENDUM III

                           PUBLIC RELATIONS AGREEMENT

May 11, 1999

Chaim Markheim
LASER PHOTONICS, INC.
2431 Impala Drive
Carlsbad, CA  92008-7227

Dear Chaim:

This Letter of Agreement, when signed by you in the space provided, will confirm
that GHB&M Public Relations has been retained by Laser Photonics, Inc. to
implement a public and professional relations program to support the launch of
the company's Excimer Laser for the treatment of psoriasis. The agreement covers
the period from May 1999 through April 2000.

In return for providing public and professional relations services and summaries
of activities and results, Laser Photonics agrees to pay GHB&M Public Relations
a monthly fee of $16,000. Out-of-pocket expenses, estimated at $236,000, will be
billed at cost. The GHB&M Public Relations fee is based on an hourly composite
rate of $130 and an estimate of the hours that will be required to successfully
implement the program as outlined in the original proposal. It covers the
services of an Account Executive, Senior Vice President Linda Rosenbaum and the
consulting hours, as required, of Steve Girgenti. Any involvement of GHB&M
public relations in additional programs or projects will be subject to
negotiation.

The monthly fee will be billed at the beginning of each month in which account
management services will be performed. Out-of-pocket expenses will be billed at
direct cost in the billing cycle following the month they are incurred.
Estimates will be provided for jobs billing over $10,000 in out-of-pocket
expenses and 50% of the estimate will be advance billed prior to the start of
the job, with the remainder due upon completion of the job.

We looking forward to working with Laser Photonics on this exciting new product
launch. Please return a signed copy of this letter to my attention at your
earliest convenience.

Sincerely,                                   Agreed to__________________________
                                                             Chaim Markheim

                                             Date _________________

Linda Rosenbaum
Senior Vice President

cc: Steve Girgenti
    Stuart Diamond

<PAGE>

PUBLIC/PROFESSIONALS RELATIONS LAUNCH BUDGET

ASSOCIATION RELATIONS/START-UP AND NEGOTIATION

         Fee:   $12,000
         OOP:   $30,000

PSORIASIS SECTION/AAD WEBSITE

         Fee:   $28,000
         OOP:   $65,000

LAUNCH PRODUCT PUBLICITY (6 MARKETS)

         Fee:   $56,000
         OOP:   $50,000

COMMUNITY MEETINGS/NPF (6 MARKETS)

         Fee:   $38,400
         OOP:   $60,000

MED ED SPIN-OFFS

         Fee:   $20,000
         OOP:   $31,000

TOTAL FEE:        $154,400

TOTAL OOP:        $236,000

GRAND TOTAL:      $390,400

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