EXHIBIT 10.99(f)

SUBSCRIPTION AGREEMENT

This Subscription Agreement is made by and between Tridium Research, Inc., a Washington corporation (the "Company"), and the undersigned (the
"Investor"), who hereby subscribes for the shares of the Company's Common Stock described below (the "Shares").

In
consideration of the Company's agreement to sell the Shares to the Investor, upon the following terms and conditions, the Investor hereby agrees, represents and warrants as
follows:

Section 1  Subscription

1.1  Purchase of Shares.The Investor subscribes for the number of Shares set forth on the signature
page below at a price of $0.20 per Share. It is understood that the minimum investment is $25,000. The Company's Board of Directors may, at its sole discretion, reduce this minimum investment amount
for certain otherwise qualified investors. With this Subscription Agreement, the Investor agrees to remit payment for subscribed shares within three (3) days following execution of this
Subscription Agreement by the Investor.

1.2  Stock Purchase Warrants.There are no Stock Purchase Warrants associated with this Subscription
Agreement.

1.3  Documents Provided to the Investor.The Investor acknowledges receipt of materials describing the
Company listed on attachedExhibit B.

1.4  Acknowledgements by the Investor.The Investor understands and acknowledges that:



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1.4  Confidential Nature of Information.The Investor acknowledges that the information provided to the
Investor regarding the Company is confidential and nonpublic and agrees that all of the information will be kept in confidence by the Investor and neither used to the Investor's personal benefit
(other than in connection with the Investor's investment decision) nor disclosed to any third party;provided,that this obligation does not apply to
any such information that: (i) is part of the public knowledge or literature and is readily accessible as of the date of this Subscription Agreement; (ii) becomes part of the public
knowledge or literature and, hence, readily accessible by publication; or (iii) is received from third parties, except third parties who disclose it in violation of confidentiality agreements
they may have with the Company.

1.5  Investor Responsibility for Due Diligence Investigation.The Investor acknowledges that he, she or
it must rely upon his, her or its own examination of the Company, and the terms of the offering, including the merits and risks involved in making an investment decision on the Shares. The Company's
offering documents, offering materials, and any statements made to Investors, all with respect to the business of the Company, its management or its financial condition, have not been reviewed or
passed upon by the Company's counsel, accountants or other independent parties. The Company has not received any independent valuation of the Shares or the assistance of its counsel in preparing its
business plan. Consequently, the Company's counsel should not be looked to for any assurance that there have not been material omissions or misstatements in the offer and sale of the Shares.
Projections furnished by the Company have been prepared by the Company and represent only the good faith estimate by the Company of future financial performance and should not be considered as facts
or certainties.

1.6  Investor Indemnification of the Company.The Investor hereby agrees to indemnify and hold the
Company harmless for liabilities or damages incurred by the Company arising as a result of any false statement or misrepresentation made by the Investor in this Subscription Agreement including, but
not limited to, liabilities or damages incurred in connection with the loss of exemptions from securities registration requirements. Said indemnification shall be limited to the amount of the
Subscriber's investment.

1.7  Shareholders' Buy-Sell Agreement.The Investor understands and acknowledges that the
Shares purchased by the Investor will be subject to a Shareholders' Buy-Sell Agreement dated August 23, 1994, as amended, a copy of which has been provided to the Investor. The
Investor has signed the Consent To Be Bound By Shareholders' Buy-Sell Agreement attached to this Subscription Agreement asExhibit C.
The Investor understands that all certificates representing the Shares will bear a legend in the form set forth in the Shareholders' Buy-Sell Agreement.

1.8  C Corporation Status.The Investor understands that the Company was originally incorporated in
August 1994 as an S Corporation and subsequently converted to a C Corporation in 1997.

1.9  Substantial Risks of Investment.THE INVESTOR UNDERSTANDS AND ACKNOWLEDGES THAT THE PURCHASE OF
SHARES INVOLVES SIGNIFICANT RISKS THAT COULD RESULT IN THE LOSS OF THE INVESTOR'S ENTIRE INVESTMENT. Attached asExhibit Dis a description of
some of the principal risks that the Company has identified to date. The Investor has carefully reviewedExhibit Dand acknowledges that there
may be additional risks.

1.10  Summary Information Regarding Capital Structure of the Company.The Investor has reviewed the
"Summary Information Regarding Capital Structure" of the Company attached asExhibit E. The Investor acknowledges that this information is in
brief summary form, without a description of the ramifications to the holders of Common Stock. The Investor acknowledges that the

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Company has recommended that the Investor consult his or her own attorney and/or tax advisor respecting an investment in the Shares.

Section 2  Representations and Warranties

2.1  Availability of Information.The Company has made available to the Investor, or to the Investor's
attorney, accountant or representative, all documents that the Investor has requested, and the Investor has requested all documents and other information that the Investor has deemed necessary to
consider respecting an investment in the Company. The Company has provided answers to all questions concerning the offering and an investment in the Company. The Investor has carefully considered and
has, to the extent the Investor believes such discussion necessary, discussed with the Investor's professional legal, tax and financial advisers and his, her or its representative (if any) the
suitability of an investment in the Company for the Investor's particular tax and financial situation. All information the Investor has provided to the Company concerning the Investor and the
Investor's financial position is correct and complete as of the date set forth below, and if there should be any material adverse change in such information prior to the acceptance of this
Subscription Agreement by the Company, the Investor will immediately provide such information to the Company.

2.2  Shares Restricted.The Investor knows that the Shares and other securities of the Company have not
been registered under either federal or state securities laws, and the Investor represents and warrants that the Investor is purchasing the Shares for investment for his, her, or its own account and
not on behalf of any other person, nor with a view to, or for resale or other distribution of the Shares. The Investor also understands that the Company is under no obligation and has no intention to
register the Shares or other securities of the Company or to take any actions to make available exemptions from the registration requirements of state and federal securities laws, and that the Shares
or other securities of the Company cannot be sold or otherwise distributed in the absence of an exemption from such registration requirements.

2.3  Investment in Not Readily Marketable Securities Not Disproportionate.The Investor's overall
commitment to investments that are not readily marketable is not disproportionate to the Investor's net worth. The Investor's investment in the Shares will not cause such overall commitment to become
excessive.

2.4  Adequate Net Worth.The Investor has adequate net worth and means of providing for his, her or its
current needs and personal contingencies to sustain a complete loss of the investment in the Company at the time of investment, and the Investor has no need for liquidity in the investment in the
Shares.

2.5  Risk of Investment.The Investor recognizes that an investment in the Company involves certain
substantial risks, which could result in the loss of the entire investment.

2.6  Truthfulness or Investor Representations.The Investor represents and warrants that all of the
information set forth in this Subscription Agreement is complete and correct.

Section 3  Status as a Qualified Investor

3.1By initialing the appropriate space(s) below, the Investor represents and warrants that he, she or it is:



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3.2  Accredited Investor.The Investor is an Accredited Investor, if he, she or it is (initial all
applicable spaces):

| |  | (a | ) | A natural person whose individual income exceeded $200,000 in each of the last two years or joint income with his or her spouse exceeded $300,000 in each of those years and who reasonably expects to receive the same level
of income in the current year;
| |  | -- | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |  | (b | ) | A natural person whose individual net worth, or joint net worth with his or her spouse, now exceeds $1,000,000 and whose net worth will exceed $1,000,000 on the date of the Company's acceptance of this Subscription
Agreement; or                        
| |  | (c | ) | Any other "accredited investor" as that term is defined in Regulation under the Securities Act of 1933.                                                                                                                                                     

3.3  Qualified Investor.The Investor is a Qualified Investor if (initial all applicable spaces):

|  |  | (a | ) | The Investor's investment in the Company does not exceed 10% of the Investor's net worth (exclusive of home, furnishings and automobiles); or                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|- |  | -- | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|X |  | (b | ) | The Investor either alone or with his, her or its purchaser representative(s) has such knowledge and experience in financial and business matters that he or she is or they are capable of evaluating the merits and risks of
the investment in the Company. In the event that the Investor is a Qualified Investor only because of meeting the conditions set forth in this Section 3.3 (b), the Investor hereby agrees to submit to the Company a letter describing the
Investor's education, employment history and financial and business experience, including a description of the Investor's experience with investments that are not readily marketable (e.g., restricted
stock, tax shelters, limited partnerships, etc.).

Sections 4 - 12  Miscellaneous

4.1  Washington Law Governs.This Subscription Agreement shall be enforced, governed and construed in
all respects in accordance with the laws of the State of Washington. This Subscription Agreement and the rights, powers and duties set forth herein shall be binding upon the Investor, the Investor's
heirs, estate, legal representatives, successors and assigns and shall inure to the benefit of the Company, its successors and assigns.

4.2  Company Address.An Investor completing and executing this Subscription Agreement should deliver
it, together with a check (made payable to the order of "Tridium Research, Inc." in the amount of the Investor's subscription, to:

Tridium
Research, Inc.
8826 122nd Avenue N.E.
Kirkland, Washington 98033
Attn: Patrick Howard

5.  Warrants.[RESERVED].

6.  Options.[RESERVED].

7.  Dilution of Investors Interest.Substantial dilution may accrue to investors in the event that the
Company finds it necessary to raise additional capital, to use stock and stock options to compensate engineers and sub-contractors, or for any other lawful purpose as deemed necessary by
the Company in its sole discretion.

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8.  Lack of Liquidity.The Company stock is to be sold in a private offering. Currently stock can only
be transferred to an individual stockholder's family members, and other stockholders of the Company, including the Company itself. If and when the Company is publicly traded, stock transfers could be
more liquid. Other possible ties for liquidity may include sale of the company, in which individual stockholders may have the option of cash or the purchasing company's stock. There can be no
assurances that these alternatives will become available.

9.  Determination of Stock Price.The initial price of $0.20 per share has been arbitrarily determined
by the Company. (This price per share value shall equal that amount listed in Section 1.1Purchase of Shares,page 3 of this Subscription
Agreement.)

10.  Indemnification and Release of Directors.The Company's Articles of Incorporation and
By-laws indemnify the directors against any third party claims and claims from the stockholders. This is subject to exceptions imposed by violations of law, wrongdoing and improper
personal gain.

11.  Lack of Patent Protection.The Company has applied for patent protection. Even though the patent
application process has moved forward having completed preliminary examination, there can be no assurance that the PTC will grant patents pertaining to the technology. Additionally, there can be no
assurance that the Company's patent(s), once issued, will not be challenged, invalidated or circumvented, or that any such rights will provide any competitive advantage.

11.1  Uncertain Ability to Protect Proprietary Technology and Intellectual Property Rights.Because of
the crucial importance of the protection of proprietary technology in the computer industry, litigation relating to intellectual property rights is common. Under certain circumstances, the Company may
find it necessary or prudent to initiate or respond to such intellectual property claims in the ordinary course of business. It is very likely that the maintenance of any such litigation would require
the dedication of significant management and financial resources, which would be likely to have an adverse impact on the Company regardless of the outcome of such proceedings. Of course, any adverse
results on the merits of any such action would also have a negative impact on the Company, perhaps to the extent that the Company's ability to continue operation would be substantially impaired.

The
Company will be required to rely on trade secrets, know-how and continuing technological innovation to maintain its competitive position. There can be no assurance
that the Company will be able to effectively protect its rights to its proprietary information and trade secrets.

While
it is highly probable the Company will find it necessary to raise substantial amounts of additional capital to pursue its Business Plan, the amounts required will vary depending
on the specific
opportunities and strategic alternatives pursued by the Company, as welt as overall market conditions. Adequate funds for the pursuit of the Company's plans, whether raised through the financial
markets or by means of collaborative or other arrangements with corporate partners, or from other sources, may not be available when needed or on terms that would be acceptable to the Company.
Insufficient funds may hinder or prevent the Company from implementing its Business Plan or may require the Company to delay, scale back or eliminate certain of its marketing or development programs.
It is impossible at this time for the Company to estimate the amount of capital that will be required in the future, the timing of such capital retirements, or what valuation and share pricing such
capital requirements might be expected.

12.  Competition.The Company will operate in an extremely competitive and volatile environment against
established computer technology companies. Nearly all of those competitors have substantially greater resources, development and engineering capabilities, distribution networks and relationships, and
industry experience than the Company and can be expected to react strongly to the Company's marketing efforts. Such competitive responses may include, without limitation: seeking to surpass the
Company's development programs, seeking to dominate critical distribution channels, engaging in intense and aggressive price competition, attempting to hire away the Company's key

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technical, marketing or management personnel; and attempting to obtain the Company's trade secrets. The Company will be heavily dependent upon the skills of its management and other key staff, its
ability to recruit and retain key personnel, its ability to establish and exploit distribution relationships, and its ability to raise additional financing when needed in order to withstand such
competitive threats. Even if the Company is able to successfully respond to such competitive pressures, the Company's competitive environment may change fundamentally, which would be likely to have a
material impact on the Company's prospects and future earnings.

|INITIAL(S) |  | /s/ TMS |  | DATE |  | 3/1/2000
|---------- |  | ------- |  | ---- |  | --------
|           |  |         |  | DATE |  |         

IN
WITNESS WHEREOF, the Investor has executed this Subscription Agreement as of March 1, 2000.

|Number of Shares: 250,000 |  | Total Price: $50,000
|------------------------- |  | --------------------

Indicate
ownership as:

|  |  | (a) |  | Individual                              
|- |  | --- |  | ----------------------------------------
|  |  | (b) |  | Community Property                      
|  |  | (c) |  | Joint Tenants with Right of Survivorship
|  |  | (d) |  | Tenants in Common                       
|X |  | (e) |  | Other (specify)  Corporation            

The
undersigned is a resident of the State of Delaware.

INVESTOR(S):

|/s/ Tracy M. Shier   |  |                                     
|-------------------- |  | ------------------------------------
|                     |  |                                     
|Signature            |  | Signature of Joint Signer (if any)  
|Tracy M. Shier       |  |                                     
|                     |  |                                     
|Name (type or print) |  | Name of Joint Signer (type or print)

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|Choices Entertainment CorporationName as it should appear on
stock certificate
|------------------------------------------------------------------------------

|121 Vine Street, #1903                         |  |                            
|---------------------------------------------- |  | ---------------------------
|                                               |  |                            
|Residence Address                              |  | Address for Sending Notices
|(or Business if not an individual)             |  | (if different)             
|Seattle, WA 98121                              |  |                            
|                                               |  |                            
|City, State and Zip Code                       |  | City, State and Zip Code   
|206 443 6948                                   |  |                            
|                                               |  |                            
|Telephone Number                               |  | Telephone Number           
|tms 1903 @ hotmail.com                         |  |                            
|                                               |  |                            
|E-mail Address                                 |  | E-mail Address             
|Investor's Taxpayer ID or
Social Security No.: |  | Citizen of:                
|52-1529536                                     |  |                            
|                                               |  |                            

ACCEPTED
this 1st day of March, 2000:

Tridium Research, Inc.

|By  |  | /s/ PATRICK HOWARD
|--- |  | ------------------
|Its |  | President         

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EXHIBIT A(to Subscription Agreement)

Common Stock Purchase Warrant(in addition to this Subscription Agreement)

There
are no Stock Purchase Warrants associated with this Subscription Agreement.

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EXHIBIT B(to Subscription Agreement)

Documents and Information Provided to the Investor(in addition to this Subscription Agreement)

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EXHIBIT C(to Subscription Agreement)

CONSENT TO BE BOUND BY  SHAREHOLDERS BUY-SELL AGREEMENT

In consideration of the issuance, sale, pledge, or other transfer to the undersigned of shares of stock in TRIDIUM RESEARCH INC., each of the
undersigned hereby consents and becomes a party to and agrees to be bound by the Shareholders' Buy-Sell Agreement dated August 23, 1994, as amended, receipt of a copy of which is
hereby acknowledged, as fully as if he or she were one of its of the original parties, and all of the shares owned by the undersigned shall be held in accordance with and restricted by the terms of
such Shareholders' Buy-Sell Agreement. Said Agreement has been amended and is attached hereto as amended.

DATED:
March 1, 2000

| |  | CHOICES ENTERTAINMENT CORP.
| |  | ---------------------------
| |  | By:                        
| |  |                            

| |  | Address:               |  | 
| |  | ---------------------- |  | 
| |  |                        |  | 
| |  |                        |  | 
| |  | Social Security Number

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SHAREHOLDERS' BUY-SELL AGREEMENT

THIS SHAREHOLDERS' BUY-SELL AGREEMENT (this "Agreement") is entered into effective as of the 23rd day of August, 1994, as amended, by and among
TRIDIUM RESEARCH, INC., a Washington corporation (the "Corporation"), the persons listed on attached Exhibit A to this Agreement are those who currently hold all of the issued and
outstanding stock of the Corporation (the "Current Shareholders"), as witnessed by having executed the Consent to Be Bound by this Agreement in the form of attached Exhibit C to the
Subscription Agreement. The persons listed on attached Exhibit A shall be referred to, collectively, as the "Shareholders" and, individually, as a "Shareholder".

RECITALS

The Shareholders and the Corporation believe it is in their and the Corporation's best interest to restrict the free transferability of the Corporation's
common stock (the "Shares") to assure continuity in the control and management of the corporation.

NOW,
THEREFORE, the parties agree as follows:

AGREEMENT

1.  General Restriction on Transfer.No Share or any interest therein shall be validly sold, assigned, awarded, pledged,
encumbered, confirmed, or otherwise transferred, for consideration or otherwise, whether voluntarily, involuntarily, or by operation of law (collectively, a "Transfer"), except in accordance with the
provisions of this Agreement. A purported transferee of a Transfer not made in accordance with the provisions of this Agreement shall not be recognized as a shareholder of the Corporation for any
purpose whatsoever. A Transfer or attempt to effect a Transfer subject to the provisions of this Agreement shall be deemed to occur whenever any interest in any Share is transferred or is attempted to
be transferred, voluntarily, involuntarily, or by operation of law, irrespective of whether any change in the record ownership of the Shares occurs.

2.  Transfers to Family.Notwithstanding anything in this Agreement to the contrary, a Shareholder may, during his life,
effect a Transfer of all or any portion of his or her Shares to his or her spouse, or his or her lineal ancestors or descendants, or a trustee of a trust for the exclusive benefit of such spouse or
ancestors or descendants (the "Permitted Transferees," who would then become "Shareholders"), provided that the transferee shall execute a Consent to be Bound by this Agreement in the form of attached Exhibit
 Cto the Subscription Agreement.

3.  Transfers.

3.1 Offer Notice.If any Shareholder (the "Transferor") desires to effect a Transfer of any or all of his or her Shares
to any person other than a Permitted Transferee pursuant to abona fidethird party offer, the Transferor shall (a) give notice to the
Corporation (an "Offer Notice") specifying the name and address of the proposed transferee, the number of Shares proposed to be transferred (the "Offered Shares"), the price per Share proposed to be
paid by the proposed transferee for the Offered Shares (the "Offered Price"), and all other terms and conditions of the proposed Transfer; and (b) provide such additional information about the
proposed transferee as the Corporation or any Remaining Shareholder (defined below) may reasonably request, which information shall be provided within ten (10) days of receipt of the request.

3.2 Offer to Sell.Giving an Offer Notice to the Corporation shall constitute an offer by the Transferor on the date the
Offer Notice is given ("Offer Date") to sell the Offered Shares to the Corporation and/or the other Shareholders (the "Remaining Shareholders") at a purchase price per Share (the "Purchase Price")
equal to the Offered Price and in the manner provided in Section 3.3. If

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the Offered Shares are proposed to be sold for consideration other than solely cash, the Offered Price shall be deemed to be the sum of (a) the fair market value of the consideration other than
cash offered for the Offered Shares as determined in good faith by the Board of Directors of the Corporation, and (b) any cash consideration so offered.

3.3 Share Purchase Procedures.Each purchase of Shares by the Corporation and/or the Remaining Shareholders pursuant to
thisSection 3shall be made as follows:

3.3.1The Corporation shall have the first right to purchase any of the Offered Shares. It shall
exercise this right by giving written notice to the Transferor (the "Corporation Acceptance Notice") within 14 days (the "Corporation Acceptance Period") after the Offer Date, stating the
number of Offered Shares that the Corporation agrees to purchase. Provided that the Corporation and/or the Remaining Shareholders agree to purchase an the Offered Shares, delivery of the Corporation
Acceptance Notice to the Transferor shall create a binding contract between the Corporation and the Transferor for the purchase and sale, at the Purchase Price and on the terms and conditions
described inSection 3, of the number of Shares specified in the Corporation Acceptance Notice.

3.3.2No later than five (5) business days after the expiration of the Corporation Acceptance
Period, the Corporation shall provide each of the Remaining Shareholders with a copy of the Offer Notice and inform them of the number of Offered Shares the Corporation has agreed to purchase. If the
Corporation does not exercise its right to purchase all of the Offered Shares, each of the Remaining Shareholders shall then have the right to purchase those Offered Shares that the Corporation has
elected not to purchase (the "Remaining Offered Shares") which are allocated to the Shareholder pursuant toSection 3.3.4.

3.3.3Within thirty (30) days after the expiration of the Corporation Acceptance Period (the
"Shareholder Acceptance Period"), each Remaining Shareholder desiring to purchase all or part of the Remaining Offered Shares (an "Accepting Shareholder") shall deliver to the Corporation notice of
his or her acceptance of the offer (the "Shareholder Acceptance Notice"), specifying the number of such Shares that he or she agrees to purchase. Provided that the Corporation and/or the Remaining
Shareholders agree to purchase all the Offered Shares, delivery of a Shareholder Acceptance Notice to the Corporation shall create a binding contract between the Accepting Shareholder and the
Transferor for the purchase and sale, at the Purchase Price and on the terms and conditions described in Section 4, of that portion of the Remaining Offered Shares allocated to such Accepting
Shareholder underSection 3.3.4.

3.3.4Each Accepting Shareholder shall first have allocated to him or her such portion of the Remaining
Offered Shares as the number of Shares held by such Shareholder bears to the total number of Shares held by all of the Accepting Shareholders (a Shareholder's "Pro
RataPortion"), but limited by the number of Shares specified in his or her Shareholder Acceptance Notice. If any Accepting Shareholder agrees to purchase less than his or her Pro RataPortion of the Remaining Offered Shares, each Accepting Shareholder who agrees to purchase more than his or herPro
RataPortion of the Remaining Offered Shares shall have allocated to him or her such additional portion of the Remaining Offered Shares not so allocated under the preceding
sentence as the number of Shares held by such Accepting Shareholder bears to the total number of Shares held by all Accepting Shareholders who agree to purchase more than their Pro RataPortion of the
Remaining Offered Shares, but again limited by the number of Shares specified in his or her Shareholder Acceptance Notice. This
procedure shall continue until the Remaining Offered Shares have been allocated among the Accepting Shareholders to the extent specified in their respective Shareholder Acceptance Notices.

3.3.5If the Corporation and the Remaining Shareholders have not agreed to purchase all of the Offered
Shares, the Transferor may effect a Transfer of the Offered Shares to the proposed transferee at any time within sixty (60) days after the expiration of the Shareholder Acceptance Period at the
Offered Price and on the terms and conditions stated in the Offer Notice only, provided that the

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proposed transferee shall have first executed a Consent to Be Bound by this Agreement in the form of attachedExhibit Cto the Subscription
Agreement.

4.  Terms of Sale and Closing.The Transfer of all of the Offered Shares to the Corporation and/or to Accepting
Shareholders (collectively, the "Purchasers") shall be consummated on the terms and conditions set forth in the Offer Notice on a date set by the Corporation (the "Closing Date"), which date shall be
not less than fifteen (15) nor more than thirty (30) days after expiration of (a) the Corporation Acceptance Period if the Corporation is purchasing all of the Offered Shares; or
(b) the Shareholder Acceptance Period if the Corporation and the Remaining Shareholders are purchasing all of the Offered Shares. At least fourteen (14) days prior to the Closing Date,
the Corporation shall give notice to the Transferor and all the Remaining Shareholders, specifying the number, if any, of the Offered Shares to be purchased by the Corporation and each of the
Remaining Shareholders and specifying the Closing Date.

5.  Other Events Constituting an Offer to Transfer Shares.

5.1 Repurchase Events.Each of the following events or conditions shall constitute a Repurchase Event:

(a) the
filing of a petition in bankruptcy by or against the Shareholder;

(b) any
general assignment by the Shareholder for the benefit of his or her creditors;

(c) any
decree of divorce, dissolution or separate maintenance, or any property settlement or separation agreement wherein Shares are awarded to the former or separated
spouse of a Shareholder who is also an employee of the Corporation;

(d) the
termination of employment of any Shareholder who is also an employee of the Corporation; provided, however, that the Corporation's board of directors, in its
sole discretion, may determine that the termination of employment of any Shareholder who is also an employee of the Corporation shall not be considered a Repurchase Event ("employment" shall include
full time employment, part time employment, or service as a consultant, on an advisory board, or on the Corporation's board of directors; "termination of employment" shall include all ways in which an
employee's employment relationship with the Corporation can terminate, including, but not limited to, termination of employment as the result of retirement, voluntary termination or involuntary
termination);

(e) the
death of a Shareholder;

(f)  any
Non-complying Transfer (defined inSection 7); or

(g) any
other event which, were it not for the provisions of this Agreement, would cause any such Shares, or any interest therein, to be sold, assigned, awarded,
confirmed or otherwise transferred, for consideration or otherwise, to any person, whether voluntarily, involuntarily or by operation of law under circumstances that would not bring such event within Section
 3of this Agreement.

5.2 Purchase of Shares.Upon the occurrence of a Repurchase Event, as defined in Section 5.1(except the Repurchase Event described in Section 5.1 (c)),
the Corporation and secondarily the Remaining Shareholders shall
have the right to purchase such Shareholder's Shares on the same terms and conditions as if such Shareholder had made an offer to sell such Shares pursuant to Section 3at a price per Share equal
to the Determined Price established pursuant to Section 6. Upon the occurrence of the Repurchase Event specified inSection 5.1(c),first
that Shareholder whose former or separated spouse was awarded Shares, and then the Corporation and, after the Corporation, the Remaining Shareholders shall have the right to purchase any or all Shares
owned, in whole or in part, by that Shareholder's former or separated spouse on the same terms and conditions as if such Shareholder's

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spouse had made an offer to sell such Shares pursuant toSection 3at a price per Share equal to the Determined Price established pursuant to Section 6.

5.3 Offer Notice; Offered Price.Within thirty (30) days after the occurrence of a Repurchase Event, the Shareholder or
his or her trustee in bankruptcy, personal representative, guardian, executor or administrator, as appropriate (the "Transferor"), shall give written notice to the Corporation and the
other Shareholders (the "Remaining Shareholders") of such event specifying the date of such event and describing in reasonable detail the nature of the event and the number of Shares affected. The
price per Share shall be the Determined Price established pursuant toSection 6.Such notice shall be deemed to be the Offer Notice for purposes of Section 3, the number of Shares affected shall be deemed to be the Offered Shares, and such Determined Price shall be deemed to be the Offered Price. If
the Corporation or any Remaining Shareholder has not received this notice upon the expiration of the thirty (30) day period, any Shareholder or director of the Corporation who has knowledge of such
event may give notice to the Corporation and the Remaining Shareholders at any time after the end of such period, and the notice shall be deemed to be the Offer Notice.

5.4 Payment for the Shares.The Purchase Price for the Offered Shares for purposes of this Section 5shall be paid in five (5) equal annual installments, together
with interest on the unpaid balance at a per annum rate equal to the minimum
rate of interest per annum necessary to avoid the imputation of interest under federal income tax laws. The first installment of principal and interest shall be paid on April 1 immediately
following the end of the fiscal year in which the Repurchase Event occurred. Interest shall accrue commencing on the Closing Date as defined inSection
4.The unpaid balance of the Purchase Price for the Offered Shares may be prepaid in whole or in part at any time without penalty, and may be accelerated in the event of
failure to pay any installment when due, in which case reasonable attorneys' fees and costs may also be recovered if any legal action for collection is commenced. The other terms and conditions and
procedures for transferring Offered Shares shall be determined in accordance withSection 4.

6.  Determined Price.The Determined Price for each Share shall be calculated as follows:

6.1Within sixty (60) days of the Repurchase Event, the Corporation and the Transferor shall attempt to agree on the
Determined Price.

6.2If the Corporation and the Transferor are unable to agree upon the Determined Price within such period, the
Determined Price shall equal the value of the Corporation, as established by an independent qualified appraiser, divided by the total number of Shares outstanding as of the date the Repurchase Event
occurs, and discounted to reflect any diminution in value resulting from the Shares of the Transferor comprising less than all of the outstanding Shares. The Corporation and the Transferor shall
attempt to agree upon such an appraiser, and, if an appraiser is agreed upon in writing by the parties, the resulting calculation shall be final and binding. The costs of such appraiser shall be
divided evenly between the Corporation and the Transferor.

6.3If the Corporation and the Transferor are unable to agree upon a single appraiser within ninety (90) days of
the Repurchase Event, then either party shall be entitled to notify the other in writing of such party's institution under the following two-appraiser process:

Within
ten (10) days of one party's giving notice to the other that he or she is instituting the two-appraiser process, each party shall notify the other in writing
of his or her appointed qualified independent appraiser, which appraiser must be experienced in the valuation of closely held corporations and of the type of business engaged in by the Corporation.
Each appraiser shall complete a calculation of the Determined Price, pursuant toSection 6.1within sixty (60) days of the appointment of
the first appraiser. The Determined Price shall be determined by the average of the two figures calculated by the two appraisers. Each party shall bear the costs associated with the appraiser he or
she selects. If either party fails to appoint an appraiser within the allotted time period, or if either

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appraiser fails to complete the calculation within the allotted time period, the calculation of the appraiser appointed by the other party shall be final and binding and shall be deemed to constitute
the Determined Price.

7.  Effect of Non-complying Transfer.If any Transfer in violation of this Agreement shall be attempted, or
if any involuntary or other purported Transfer by law of any Shares occurs or is attempted (each, a "Non-complying Transfer"), it shall be void and upon presentation for transfer the
Corporation shall not give effect to such purported Transfer. The failure of the Corporation or its Shareholders to purchase, pursuant to Section 5, Shares, which are the subject matter of a
Non-complying Transfer, shall not be construed as permission to proceed with
such Transfer. In addition, any Shareholder or the Corporation may institute and maintain a proceeding to compel specific performance of this Agreement by the Shareholder attempting such Transfer, it
being agreed that the other Shareholders not in default and the Corporation do not have an adequate remedy at law.

8.  Special Restrictions.[RESERVED].

8.1 Not Less Than All Shares.Unless the transferee is the Corporation, or one or more other Shareholders, a
transferring Shareholder may only transfer all, but not less than all, of his or her Shares in any single transaction. For purposes of this Section 8.1, all transfers pursuant to a single Offer
Notice or Decedent's Offer Notice, as the case may be, shall be considered transferred in a single transaction.

8.2  Transferees Must Be Eligible Shareholders.The transferring Shareholder (or personal representative
in the case of a deceased Shareholder) may only transfer his or her Shares to an "eligible shareholder," as defined in Section 3 of the Subscription Agreement.

8.3  Terminating Transfer Void.No transfer of Shares may be made if the effect of such transfer, in the
opinion of the Corporation on advice from Corporation counsel or accountants, would be to terminate the Corporation's status as a C Corporation (or to violate any code restrictions on the transfer of
C Corporation shares).

8.4  Resolution to Revoke.No resolution to revoke the Corporation's election to be taxed as an C
Corporation shall be effective for such purpose unless Shares representing greater than fifty percent (50%) of the total Shares of the Corporation vote in favor of such resolution.

8.5  No Disproportionate Distributions.If, at any time, the Board of Directors resolves to distribute
earnings of the Corporation, such earnings shall be distributedpro rataamong the Shareholders in proportion to the relative number of Shares held by
each. The Corporation shall not make any distribution to Shareholders which varies the foregoing rule either with respect to timing or amount.

8.6  Minimum Annual Distributions.[RESERVED].

8.7  Termination of S Election.[RESERVED].

8.8  Termination of Shareholder's Interest.[RESERVED].

8.9  Corporation's Duties.The Corporation shall use its best efforts and shall take such action as may
be reasonably necessary to avoid a termination of its corporate election status. In furtherance of and not by way of limitation of the Corporation's obligations, the Corporation shall not
(a) issue more than one class of stock (except for a class of stock which only differs with respect to voting rights), (b) borrow funds from a Shareholder unless such borrowings satisfy
the "straight debt"' safe harbor as defined in Code Section 1361(c)(S), (c) acquire a stock ownership interest in another corporation if the acquisition of such an interest will result
in the Corporation becoming a member of an affiliated group as defined in Code Section 1361(b)(2)(A) unless counsel for the Corporation renders an opinion that such affiliation will not cause
the Corporation's existing election status to terminate, or (d) process on its books and records any transfer prohibited by this Shareholder Agreement.

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9.  Miscellaneous Provisions.

9.1  Further Assurances.Each party agrees to perform any further acts and to execute and deliver any
further documents that may be reasonably necessary to carry out the provisions of this Agreement. The obligation imposed by thisSection 9.1shall be specifically enforceable.

9.2  Attorney's Fees.In the event it is necessary for any party to engage an attorney to enforce the
terms of this Agreement, regardless of whether a lawsuit or arbitration is commenced, the prevailing party shall, in addition to any other relief, be entitled to recover from the party in default
reasonable attorney's fees and costs, including any on appeal.

9.3  Construction Venue.It is agreed and understood that this Agreement made in accordance with and
shall be interpreted under the laws of the State of Washington. If any action or other proceeding be brought on or in connection with this Agreement, the venue of said actions shall be in King County,
Washington.

9.4  Number and Gender.Unless some other meaning or intent is apparent from the context, the plural
shall include the singular and vice versa, and masculine, feminine and neuter words shall be used interchangeably.

9.5  Section Headings.Section headings have been included solely for convenience and shall not be
considered a part of this Agreement for any purpose relating to the interpretation or construction of its terms.

9.6  Spousal Consent.The execution of this Agreement by a Shareholder's spouse signifies that he or she
authorizes, ratifies, confirms and approves the execution of this Agreement by the Shareholder, with the same force and effect as if a party hereto, and he or she further authorizes and appoints his
or her spouse as his or her attorney-in-fact to exercise all rights he or she may have with respect to the ownership of any Shares, including the encumbrance and disposition of
such Shares.

9.7  Legend on Shares.Upon execution of this Agreement, Shareholders shall deliver all certificates
representing Shares to the Corporation to have substantially the following legend placed upon them:



9.8  Amendments.The provisions of this Agreement may be waived, altered, amended or repealed, in whole
or in part, only upon the written consent of the Corporation and the Shareholders holding two-thirds (2/3) of the outstanding Shares.

9.9  Successors and Assigns.This Agreement shall be binding on, and shall inure to the benefit of, the
parties to it and their respective heirs, personal representatives, successors and assigns.

9.10  Severability.Should any provision or portion of this Agreement be held unenforceable or invalid
for any reason, the remaining provisions and portions shall be unaffected by such holding.

9.11  Entire Agreement.This instrument constitutes the sole and entire agreement of the parties with
respect to its subject matter and correctly sets forth the rights, duties and obligations of each as to the other with respect to the subject matter as of its date. Any prior agreements, promises,
negotiations or representations concerning its subject matter not expressly set forth in this Agreement are of no force or effect.

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9.12  Termination.This Agreement shall terminate on the written agreement of all parties, the
dissolution, bankruptcy, or insolvency of the Corporation, or at such time as only one Shareholder remains, after the Shares of all other Shareholders have been transferred, redeemed or purchased,

9.13  Notices.Any notice or other communication required or permitted to be given under this Agreement
shall be in writing, and notice shall be deemed given when delivered personally to, or deposited in the United States mail, first-class, postage prepaid, addressed to the Corporation at 8826 122nd
Avenue N.E., Kirkland, WA 98033, or to the Shareholder at the Shareholder's address as set
forth on attachedExhibit A. Any party may at any time give notice in writing to the other parties of a change of his or her address for purposes
of thisSection 9.13.

9.14  Counterparts.This Agreement may be executed by the parties in one or more counterparts, all of
which taken together shall constitute one instrument.

IN
WITNESS WHEREOF, the parties have executed this Agreement effective as of the date first written above.

|TRIDIUM RESEARCH, INC. |  | SHAREHOLDERS:
CECS CORP. 
|---------------------- |  | -------------------------
|By                     |  | /s/ Patrick Howard       
|                       |  | Patrick Howard, President
|                       |  |                          
|                       |  |                          

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EXHIBIT D  (to Subscription Agreement)

RISKS:

THIS INVESTOR PACKET, PARTICULARLY THE RISK FACTORS IN THIS EXHIBIT D AND THE RELATED BUSINESS PLAN, SHOULD BE CAREFULLY REVIEWED PRIOR TO MAKING A DECISION TO
INVEST. THE INVESTOR UNDERSTANDS AND ACKNOWLEDGES THAT INVESTMENT IN THE SHARES INVOLVES VERY SIGNIFICANT RISKS, WHICH COULD RESULT IN THE LOSS OF THE INVESTOR'S ENTIRE INVESTMENT.

1.  Assumptions and Forecasts based Solely on Management's Knowledge and Belief; Accountants Not Yet
Engaged.The Company's financial forecasts in the business plan were not prepared by an accountant and are not based on any standard or accepted forecasting
techniques or procedures, but are limited to presenting, to the best of management's belief and knowledge, the expected financial results of the Company. Such forecasts are entirely dependent on a
number of assumptions, some of which are described in the business plan, which management believes to be reasonable on the basis of the information presently known to them. However, these assumptions
necessarily reflect matters of judgment and speculation, and it is therefore inevitable that the results of the Company's operations, when and if it conducts business operations, will vary from the
forecaster projections, and possibly quite significantly. Investors should recognize that there can be no assurance that the forecasted results can be achieved, and should not place excessive reliance
upon the Company's forecasts or the underlying assumptions. The Company has not yet chosen accountants to review all sales and expenditures, and there have been no sales of product or services
described in the business plan as of this date.

2.  Manufacturing Arrangements to be Determined.Achieving the Company's production goals will require
considerable planning and documentation. The Company may experience unanticipated problems with vendors and suppliers such as shortages, long lead times, foreign manufactured parts and conflicts of
interest with the various parts manufacturers. Additional unforeseen technical problems could arise with FCC class B testing before consumer sales begin.

3.  Dependence on Key Personnel/Other Commitments of Management.Management of the Company will depend
upon the services of its key personnel (its Chief Executive Officer, President, Vice Presidents, Hardware and Software Engineers, or other Officers of the Company). In addition, there are other key
positions that have yet to be hired. Initially, some positions will not be required to devote their full time to the Company. No assurances are given that other obligations of these key individuals
will not interfere with their ability to discharge their obligations to the Company. In addition, loss of even the partial services of any such key personnel could have an adverse effect on the
Company. The Company does not currently intend to require its key management personnel to sign employment contracts or to agree to non-competition limitations in the event that they cease
to be officers of the Company.

4.  Negative Cash Flow Anticipated.The Company anticipates that even as sales increase, it will
continue to have negative cash flow while additional development and marketing continue. Assurances cannot be made that the Company will be profitable over any specific period or at all.

5.  Lack of Market Interest.The Company has not hired a market research firm to assess market demand.
Instead the management is relying on personal knowledge of the market and selected interviews with various existing technology concerns.

6.  Significant Capital Needs.The Company may not be able to raise all the capital necessary to compete
effectively. The initial offering limits the Company to $500,000 of investment. Additional filings to the Secretary of States Office of the State of Washington will be done as the Company raises in
excess of $500,000. Based on assumptions presently available management perceives this to be sufficient to develop and market the Company's planned product line. However, market conditions are
dynamic, making capital requirements variable for design, production and marketing not predictable, To date, the Company has raised $250,000 and is currently seeking to raise additional capital. This
may cause for the Company to request a higher offering limit by filing the required documentation with the State of Washington.

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EXHIBIT E  (to Subscription Agreement)    SUMMARY INFORMATION REGARDING CAPITAL STRUCTURE

Authorized Shares

The Company's authorized capital consists of 10,000,000 shares of Common Stock. The rights of the holders of these shares are as provided in the Company's Articles of
Incorporation, a copy of which the Investor has received in accordance to the Subscription Agreement. Holders of Common Stock do not have
preemptive rights or the right to cumulate their votes in elections of directors. All shares of the Company's stock are subject to a Shareholders' Buy-Sell Agreement dated
August 23, 1994, as amended. In addition, the Company presently operates as a C Corporation, having changed its status from an Subchapter S Corporation in 1997.

Issued, Outstanding and Reserved Shares

As of 1/31/  , 2000, 4,117,822 shares of Common Stock of the Company had been issued.

In
addition, the Company's Board of Directors has reserved a total of 1,000,000 shares of Common Stock for issuance to key employees, consultants, officers and directors pursuant to
stock options granted or to be granted by the Board of Directors. The Board of Directors further intends to adopt an employee stock option plan.

Shares Offered

In this offering, the Company intends to sell up to 4,250,000 shares of Common Stock at a price of $0.20 per share. The Company may not be able to, or may not
choose to, sell all of the shares offered
in this offering at stipulated price per share, and may, at its sole discretion, elect to sell large blocks of shares at less than the offering price per share specified in this Subscription
Agreement. Additional filings will be done with the Secretary of the State of Washington as the Company nears, and expects to exceed, $500,000 of investment.

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|Tridium Research, Inc. |  | EXHIBIT F
Signature Page |  | CONFIDENTIAL
|---------------------- |  | ------------------------ |  | ------------

This
Signature Page to the Subscription Agreement ("Agreement") classifies all the information and documents obtained by CECS ("Viewer") on product, market, marketing, systems and
hardware design, propriety software and algorithms, unit packaging, business plans and financial projections, production rates and pricing, trade secrets, patents pending and trademarks (collectively
referred to as "Secrets") to be the property of Tridium Research, Inc., ("Tridium") a Washington Corporation.

The
Viewer understands that the information reviewed pursuant to this Agreement is absolutely confidential and proprietary and is intended only for the persons to whom it is
transmitted by Tridium. The Viewer also acknowledges that any reproduction of this Agreement, in whole or in part, or the divulgence of any of its contents, without the prior written consent of
Tridium are expressly prohibited.

The
Viewer agrees not to disclose or appropriate any of the Secrets to a third party without prior written permission of Tridium. The Viewer also agrees not to transmit the identity
of Tridium or its principals or the specifics of any business negotiations or contractual Agreements entered into to any third parties without the prior written consent of Tridium. This Agreement
shall be binding upon and inure to the benefit of all Viewers and all persons and companies, partnerships, corporations and their subsidiaries, domestic and foreign, which they represent or are a part
of and their successors or assigns. A facsimile of this Agreement may be executed by each party separately and when each party has executed a copy thereof, such copies taken together shall be deemed
to be a full and complete contract between the parties.

The
Viewer acknowledges that these documents do not constitute an offer to sell any securities and any such solicitation will be undertaken only under appropriate documents and
pursuant to all applicable
securities laws. The information set forth herein is believed by Tridium to be reliable. It must be recognized, however, that projections and predictions about future performance of Tridium are
subject to a high degree of uncertainty and no warranty of such projections is expressed or implied hereby. Also, all appropriate documents shall be read before investing in or subscribing for shares
of Tridium (if investing) and the Viewer will have had opportunity to discuss this material with and ask questions of Tridium's President and/or Officers.

VIEWER(s):

CHOICES ENTERTAINMENT CORPORATION/s/ Tracy M. Shier

Title

PresidentTitle


TRIDIUM:

Accepted by

/s/ Patrick Howard

Date

3/1/2000Title

President


|CIRCLE APPROPRIATE: |  | Business Plan |  | Subscription Agreement |  | Other ______________
|------------------- |  | ------------- |  | ---------------------- |  | --------------------

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TRIDIUM RESEARCH INC.  Subscription Agreement

Kirkland, Washington
E-mail:info@dualmonitor.com(T) (425) 822.2400 (F) (425) 827.3902

CONFIDENTIALITY

The information and data provided in this document are strictly confidential and are supplied on the understanding that they will be held confidentiality and
not disclosed to third parties without the prior written consent of Tridium Research, Inc. Any breach of this statement will result in legal action as permitted under the laws of the State of
Washington.

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TRIDIUM RESEARCH, INC.
Instructions for Investing

If you wish to purchase shares of Common Stock in Tridium Research, Inc., please complete the attachedSubscription
Agreementand check the appropriate space(s) on page 7. Then, please mail or
deliver theSubscription Agreement, together with your check made payable to "Tridium Research, Inc." to:

Tridium
Research, Inc.
8826 122nd Avenue N.E.
Kirkland, Washington 98033
Attn: Patrick Howard
(current legal mailing address of company)
(may change as the company grows and/or moves to new offices)

Upon
acceptance of yourSubscription Agreement, an officer of Tridium Research, Inc. will sign it and return a copy, as signed,
together with a stock certificate representing your shares and, if appropriate, a Common Stock Purchase Warrant.

If
you have any questions please call the Tridium offices at (425) 822-2400.

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