Document:

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                                                                   Exhibit 10.11

                            STOCK PURCHASE AGREEMENT

         THIS AGREEMENT is made and entered into effective this 28th day of
June, 2000, by and between InteRosa, Inc., a Delaware corporation located at
7150 Campus Drive, Colorado Springs, CO 80920, ("InteRosa" or the "Company"),
and ZERO.NET, Inc., a Delaware corporation ("ZERO.NET"). If not otherwise
designated, ZERO.NET shall be referred to as the "INVESTOR". The term "Investor"
shall specifically be understood to include any successor, transferee or
assignee of Investor's rights under this Agreement or any other document or
instrument entered into pursuant hereto, as applicable.

                                    RECITALS

         WHEREAS, the Company has authorized the sale and issuance of up to an
aggregate of 1,432,662 shares (the "Shares") of its Series C Preferred Stock
(the "Preferred") to Investor;

         WHEREAS, Investor desires to purchase the Shares on the terms and
conditions set forth herein; and

         WHEREAS, the Company desires to issue and sell the Shares to the
Investor, on the terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the foregoing recitals and the
mutual promises hereinafter set forth, the parties hereto agree as follows:

         1. AGREEMENT TO SELL AND PURCHASE SHARES. Subject to the terms and
conditions hereof, at the Closing (as hereinafter defined), the Company hereby
agrees to issue and sell to the Investor the Shares and Investor agrees to
purchase from the Company the Shares at a purchase price of $1.745 per share.
The Shares have the rights, preferences and privileges set forth in the Second
Restated and Amended Certificate of Incorporation substantially in the form
attached hereto as EXHIBIT A (the "Amended Articles").

2. CLOSING. CLOSING. The closing for the sale and purchase of 1,432,662 Series C
Preferred Shares (the "Closing") shall take place at the offices of Sparks
Willson PC at 2:00 p.m. (Mountain Daylight Time) on June 28, 2000, or at such
other place and on such other date as may be mutually agreeable to the Company
and the Investor. At the Closing, subject to the terms and conditions hereof,
the Company will deliver to the Investor certificates representing the number of
Shares to be purchased at the Closing by the Investor, against payment of the
purchase price therefore by certified check or wire transfer of immediately
available funds.

         3. APPLICATION OF INVESTMENT PROCEEDS: The proceeds of the Investment
shall be used by InteRosa substantially in accordance with the guidelines set
forth on EXHIBIT C or as otherwise determined by the Board of Directors
(including the representative elected by the Preferred).

         4. GOVERNING LAW: This Agreement shall be governed by and construed in
accordance with the laws of the State of Colorado and the state and federal
courts located in Colorado shall have the exclusive jurisdiction and venue of
any litigation involving or construing this or any related agreement.

         5. RIGHT OF FIRST REFUSAL: Investor shall have the right to participate
in any and all future rounds of financing as set forth in Section 4 the Investor
Rights Agreement substantially in the form attached hereto as EXHIBIT D (the
"Investor Rights Agreement").

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         6. REGISTRATION RIGHTS AND INDEMNIFICATION: The Company shall grant
registration rights for the Shares as set forth in Section 2.2 of the Investor
Rights Agreement and indemnification rights set forth in Section 2.10 thereof.

         7. COVENANTS, REPRESENTATIONS AND WARRANTIES OF THE COMPANY: Except as
specifically noted in EXHIBIT E (the "Schedule of Exceptions"), InteRosa
represents and warrants that the following provisions of this Section 7 are
complete, true and correct as of the date of signing this Agreement and as of
the date of closing hereof with the knowledge and expectation that Investor will
rely, and is relying, thereon in making this investment in InteRosa contemplated
by this Agreement.

                  a. Upon the filing of the Amended Articles, the authorized
capital stock of the Company consists of forty million (40,000,000) shares, of
which (i) the authorized Common Stock is thirty three million three hundred five
thousand (33,305,000) shares with a par value of $.001 per share; (ii) the
authorized Series A Preferred Stock is three million three hundred thousand
(3,300,000) shares with a par value of $.001 per share; (iii) the authorized
Series B Preferred Stock is one million three hundred ninety five thousand
(1,395,000) shares with a par value of $.001 per share; (iv) the authorized
Series C Preferred Stock is one million four hundred thirty two thousand six
hundred sixty two (1,432,662) shares with a par value of $.001 per share; and
(v) authorized but undesignated Preferred in the amount of five hundred sixty
seven thousand three hundred thirty eight (567,338) shares with a par value of
$.001 per share, none of which shall be issued as Common, Series A, B or C
Preferred Stock, or with any rights greater than the Series C stock without the
consent of the Investor. Prior to the Closing the following shares are issued
and outstanding:

                           Common Stock              1,104,618
                           Series A Preferred Stock  3,300,000
                           Series B Preferred Stock  1,080,000

The Company has reserved for issuance the following shares under the following
conditions:

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------------
Shares                                     Person                                    Condition of Issuance
-----------------------------------------------------------------------------------------------------------------------------
<S>                                        <C>                                       <C>
1,432,662 Series C Preferred               Investor                                  At the Closing of this Agreement
-----------------------------------------------------------------------------------------------------------------------------
2,190,000  Common                          NSO options reserved for issuance         Vesting and Exercise
                                           outside the 1999 Stock Option Plan
-----------------------------------------------------------------------------------------------------------------------------
1,710,000  Common                          Options reserved for issuance under the   Board Approval of Grants; Stockholder
                                           1999 Stock Option Plan                    approval of Plan
-----------------------------------------------------------------------------------------------------------------------------
1,432,662 Common                           Investor                                  Conversion of Series C Preferred Stock
-----------------------------------------------------------------------------------------------------------------------------
3,300,000 Common                           Envision Development Corporation          Conversion of Series A Preferred Stock
-----------------------------------------------------------------------------------------------------------------------------
1,395,000 Common                           Envision Development Corporation and      Conversion of Series B Preferred Stock
                                           Rock                                      and Warrants
-----------------------------------------------------------------------------------------------------------------------------
315,000 Series B Preferred                 Rock                                      Exercise of Rock Warrants
-----------------------------------------------------------------------------------------------------------------------------
</TABLE>

The Company initially reserved a total of 3,900,000 shares of Common Stock for
issuance upon option exercise. Prior to the adoption of the Company's Option
Plan, the Company granted a total of 2,190,000 NSO options to employees and
consultants at exercise prices between $.01 and $1.00, of which 994,848

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have been exercised. The remaining 1,710,000 were reserved for issuance pursuant
to the Company's Option Plan, of which 902,700 have been granted and of which
19,770 have been exercised.

                  b. InteRosa is a corporation duly organized, existing and in
good standing under the laws of the State of Delaware. InteRosa is duly licensed
or qualified to do business and is in good standing as a foreign corporation in
all jurisdictions where InteRosa's activities or ownership of assets would
require such licensing or qualification.

                  c. InteRosa has been duly authorized to enter into this
transaction with Investor and all actions on the part of InteRosa, its officers,
directors, agents and stockholders necessary and required for the execution,
delivery and performance of this Agreement have been taken such that this
Agreement and any documents issued pursuant hereto will be fully valid and
enforceable in accordance with their terms, except (i) as limited by applicable
bankruptcy, insolvency, reorganization, moratorium or other laws of general
application affecting enforcement of creditors' rights, or (ii) as limited by
general principles of equity that restrict the availability of equitable
remedies. InteRosa has obtained any necessary consents to enter into this
Agreement and the transactions contemplated herein. InteRosa has, and from and
after the date hereof shall, reserve and keep available at all times, solely for
issuance and delivery upon conversion of the Shares sufficient shares to fully
discharge InteRosa's obligation to issue shares in the event of Investor's right
to convert any shares of Series C Preferred Stock held by it, including the
Shares. Further, InteRosa has, and from and after the date hereof shall reserve
and keep available at all times, sufficient shares to fully discharge InteRosa's
obligation to issue shares in the event of exercise of any rights contained in
any other convertible security issued by InteRosa, including but not limited to,
debentures, options or warrants, which security is outstanding at the time of
this Agreement or thereafter;

                  d. The Shares, when issued in compliance with the provisions
of this agreement, will be validly issued, fully paid and nonassessable and will
have the rights, preferences and privileges described in the Amended Articles.
The InteRosa Common Stock that the Preferred Stock is convertible into (the
"Conversion Stock") has been duly and validly reserved and, when issued in
compliance with the provisions of this Agreement and the Amended Articles, will
be validly issued, fully paid and nonassessable; and the Preferred Stock and
Conversion Stock will be free of any adverse claims (assuming that the Investor
is a "protected purchaser" within the meaning of C.R.S. 4-8-303) or preemptive
or similar rights; provided however that the Preferred Shares and the Conversion
Stock will be subject to restrictions on transfer under state and/or federal
securities laws as set forth herein;

                  e. This transaction has been reviewed by the InteRosa Board
and by legal counsel and is fair and commercially reasonable to InteRosa and to
all of its stockholders under all of the circumstances applicable to this
transaction at the time of its consummation;

                  f. InteRosa has made available to Investor all information
relating to its finances and plans which is material in making an investment in
InteRosa, specifically including the information listed on the attached EXHIBIT
F ("Due Diligence Materials"). InteRosa hereby certifies that such disclosures
have been complete, true and correct in all material respects and that there are
no contracts, agreements, circumstances, other financial information not
disclosed to Investor, or changes in business status and outlook which could
have any material effect upon InteRosa's business outlook, financial well-being
or Investor's decision to invest funds in InteRosa;

                  g. The list attached as EXHIBIT G (the "List of Stockholders
and Share Equivalent Holders") names or describes all Investors in InteRosa
stock, and of securities or instruments (including options) convertible or
exchangeable to InteRosa stock and of contractual rights to receive stock
(contingent or otherwise) and the number of shares or share-equivalents and
expiration dates pertainable thereto, as of the date of closing (excluding
issuances at the Closing);

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                  h. All offers, sales, and issuances of shares of InteRosa
stock, or of securities convertible into shares of InteRosa stock, outstanding
prior to the closing of this transaction are exempt from all registration
provisions of state and federal securities laws, rules, regulations, orders and
restrictions and have been effected in such a way that there are outstanding no
rights of rescission under state or federal law with respect to such offers
sales, and issuances;

                  i. This Agreement is not in conflict with any prior agreement,
instrument, security, or other document to which InteRosa is a party, or with
any obligation contained therein, and InteRosa's ability to enter into this
Agreement and issue the Preferred Stock required by this Agreement is not
limited in any way by any such agreement, instrument, security or other
document;

                  j. To the best of its knowledge, InteRosa owns or possesses,
or has made all necessary contractual or other arrangements to use, all patents,
designs, technical information and know-how necessary to economically produce
and distribute its software in commercial quantities for sale to unrelated
parties. To the best of its knowledge, InteRosa's proposed sale and continued
development of the software does not conflict with, or infringe on, any
intangible property rights of any type or sort whatsoever which are owned,
possessed or used by any third party.

                  k. There are no actions, investigations, litigation, charges,
suits, or other legal proceedings of any type or sort whatsoever, civil,
criminal or administrative, pending or threatened against InteRosa, nor is there
any basis for any such proceedings;

                  l. InteRosa is not a party to any agreements, contracts or
transactions from which it could expect to be exposed to any contingent
liability or obligation in excess of Fifty Thousand Dollars;

                  m. To the best of the Company's knowledge, no employee of the
company is in violation of any term of any employment contract, patent
disclosure agreement or any other contract or agreement relating to the
relationship of such employee with the Company or any other party because of the
nature of the business conducted or to be conducted by the Company;

                  n. The Company has no outstanding indebtedness for borrowed
money or owed money, and is not a guarantor or otherwise liable for any
indebtedness for borrowed or owed money. The Company is not indebted, directly
or indirectly, to any of its employees, officers, directors, or stockholders or
to their respective spouses or children, in any amount whatsoever other than
compensation accrued during the current payroll period as specifically itemized
by persons;

                  o. The Company has not made loans to any of its employees,
officers or directors;

                  p. Set forth in Section 7p. of the Schedule of Exceptions is a
list of all agreements, contracts, indebtedness, liabilities and other
obligations to which the Company is a party or by which it is bound that are
material to the conduct and operation of its business and properties, which
provide for payments to or by the company in excess of $10,000; which obligate
the company to share, license or develop any product or technology; or which
involve transactions or proposed transactions between the company and its
officers, directors, affiliates or any affiliate thereof. Copies of such
agreements have been and will continue to be made available for inspection by
Investor and its counsel;

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                  q. The Company has not incurred, and will not incur, directly
or indirectly, as a result of any action taken by the Company, any liability for
brokerage or finders' fees or agents' commissions or any similar charges in
connection with this agreement;

                  r. This Agreement with the exhibits hereto and the Company's
Business Plan included in the due diligence materials delivered to the Investor
do not contain any untrue statement of a material fact or omit to state any
material fact. The Business Plan and the financial projections contained in the
Business Plan were prepared in good faith; however, the Company does not warrant
that it will achieve such financial projections;

                  s. The Company maintains insurance policies as set forth in
Section S of the Schedule of Exceptions. Such policies are in full force and
effect;

                  t. The Company does not maintain or have any obligations with
respect to any employee benefit plan except as set forth in Section 7t. of the
Schedule of Exceptions;

                  u. The Company has all permits and licenses or other similar
authority necessary for the conduct of its business as now being conducted by it
and as planned to be conducted as described in the Business Plan;

                  v. The Company is not party to or aware of any voting trust,
voting agreement, stockholders agreement, pledge agreement, buy-sell agreement
or first refusal or preemptive rights agreement relating to securities of the
Company, or control positions in the company such as Board of Director seats.

         8. REPRESENTATIONS AND WARRANTIES OF THE INVESTOR: Investor represents
and warrants to the Company as of the Closing, as follows:

                  a. It has been duly authorized to enter into this transaction
with Company and all actions on the part of Itself, its officers, directors,
agents and stockholders necessary and required for the execution, delivery and
performance of this Agreement have been taken such that this Agreement and any
documents issued pursuant hereto will be fully valid and enforceable in
accordance with their terms except (i) as limited by applicable bankruptcy,
insolvency, reorganization, moratorium or other laws of general application
affecting enforcement of creditors' rights, or (ii) as limited by general
principles of equity that restrict the availability of equitable remedies.
Investor has obtained any necessary consents to enter into this Agreement and
the transactions contemplated herein.

                  b. It understands that the Shares have not been registered
under the Securities Act. Investor also understands that the Shares are being
offered and sold pursuant to an exemption from registration contained in the
Securities Act based in part upon Investor's representations contained in the
Agreement. Investor hereby represents and warrants as follows:

                           (i) It has substantial experience in evaluating and
investing in private placement transactions of securities in companies similar
to the Company so that it is capable of evaluating the merits and risks of its
investment in the Company and has the capacity to protect its own interests.
Investor must bear the economic risk of this investment indefinitely unless the
Shares are registered pursuant to the Securities Act, or an exemption from
registration is available.

                           (ii) Investor is acquiring the Shares for Investor's
own account for investment only, and not as a nominee and not with a view
towards their distribution. Investor's right to assign or

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designate its ownership without InteRosa approval shall be limited to an
assignment and/or distribution to affiliated entities who have substantially the
same beneficial ownership and control as Investor.

                           (iii) Investor or its counsel has received and read
the due diligence materials delivered to it by the Company and has had an
opportunity to discuss the Company's business, management and financial affairs
with directors, officers and management of the Company and has had the
opportunity to review the Company's operations and facilities. Investor has also
had the opportunity to ask questions of, and receive answers from, the Company
and its management regarding the terms and conditions of this investment and,
without limiting any of the representations of the Company, such questions have
been answered to the satisfaction of the Investor.

         9. CONDITIONS PRECEDENT TO CLOSING:

                  a. Investor Conditions: The Initial Closing of the
transactions contemplated by this Agreement is expressly conditioned on the
following conditions precedent first being fully met to the reasonable
satisfaction of Investor; these conditions shall not apply to each Subsequent
Closing:

                           (i) Investor shall complete its due diligence review
of InteRosa's financial and business conditions and affairs, fully satisfying
itself with regard thereto;

                           (ii) InteRosa shall have procured from all key
management and employees employment agreements requiring said personnel to keep
all information regarding InteRosa's trade secrets confidential during their
employment by InteRosa and for a period of at least two years after they leave
InteRosa's employ;

                           (iii) There has been no material adverse change in
InteRosa's financial position, corporate structure, ownership, staffing, or
business;

                           (iv) InteRosa shall provide Investor at Closing with
an opinion of counsel in the form attached hereto as EXHIBIT H;

                           (v) The Amended Articles shall have been filed with
the Secretary of State of the State of Delaware.

                  b. Company Conditions: The Company's obligation to issue and
sell the Shares at the Closing and to issue the Rock Warrant at the Closing is
subject to the satisfaction, on or prior to the Closing, of the following
conditions:

                           (i) The representations and warranties made by the
Investor shall be true and correct in all material respects at the date of the
Closing;

                           (ii) The Amended Articles shall have been filed with
the Secretary of State of the State of Delaware and shall be in full force and
effect.

                           (iii) Investor shall have delivered to the Company
the purchase price for the Shares.

         10. MISCELLANEOUS

                  a. SUCCESSORS AND ASSIGNS. Except as otherwise expressly
provided herein, the provisions hereof shall inure to the benefit of, and be
binding upon, the successors, assigns, heirs,

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executors, and administrators of the parties hereto and shall inure to the
benefit of and be enforceable by each person.

                  b. ENTIRE AGREEMENT. This Agreement, the Exhibits and
Schedules hereto, the Investor Rights Agreement and the other documents
delivered pursuant to each such Agreement constitute the full and entire
understanding and agreement between the parties with regard to the subjects
hereof and no party shall be liable or bound to any other in any manner by any
representations, warranties, covenants and agreements except as specifically set
forth herein and therein. Notwithstanding the foregoing, an amendment, waiver,
discharge or termination enforceable against the Investor(s), may be obtained by
a written instrument signed by the holders of two-thirds of the then outstanding
Shares.

                  c. SEVERABILITY. The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision hereof unless the effect of the declaration of invalidity or
unenforceabilty is to reduce the value of the Investor's investment, in which
event the court declaring any provision unenforceable shall be required to
reform the Agreement so as to protect the Investor from any reduction in the
value of its investment in a manner as nearly identical to the original
provision declared invalid as may be possible.

                  d. AMENDMENT AND WAIVER. Except as otherwise expressly
provided, this Agreement may be amended or modified only upon the written
consent of the Company and the Investor.

                  e. DELAYS OR OMISSIONS. It is agreed that no delay or omission
to exercise any right, power, or remedy accruing to any party, upon any breach,
default or noncompliance of the other party under this Agreement shall impair
any such right, power, or remedy, nor shall it be construed to be a waiver of
any such breach, default or noncompliance, or any acquiescence therein, or of
any similar breach, default or noncompliance thereafter occurring. It is further
agreed that any waiver, permit, consent, or approval of any kind or character on
any party's part of any breach, default or noncompliance under the Agreement or
any waiver on such party's part of any provisions or conditions of this
Agreement must be in writing and shall be effective only to the extent
specifically set forth in such writing. All remedies, either under this
Agreement, by law, or otherwise afforded to the parties, shall be cumulative and
not alternative.

                  f. NOTICES. All notices required or permitted hereunder shall
be in writing and shall be deemed effectively given: (a) upon personal delivery
to the party to be notified, (b) e-mail if confirmed under subsection (d) below,
(c) when sent by confirmed telex or facsimile if sent during normal business
hours of the recipient; if not, then on the next business day, (d) five (5) days
after having been sent by registered or certified mail, return receipt
requested, postage prepaid, or (e) one (1) day after deposit with a nationally
recognized overnight courier, specifying next day delivery, with written
verification of receipt. All communications shall be sent to the party to be
notified at the address as set forth above or at such other address as such
party may designate by ten (10) days advance written notice to the other parties
hereto.

                  g. ATTORNEYS' FEES. In the event that any suit or action is
instituted to enforce any provision in this Agreement, the prevailing party in
such dispute shall be entitled to recover from the losing party all fees, costs
and expenses of enforcing any right of such prevailing party under or with
respect to this Agreement, including without limitation, such reasonable fees
and expenses of attorneys and accountants, which shall include, without
limitation, all fees, costs and expenses of appeals.

                  h. TITLES AND SUBTITLES. The titles of the sections and
subsections of this Agreement are for convenience of reference only and are not
to be considered in construing this Agreement.

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                  i. REPRESENTED BY COUNSEL. Company and Investor acknowledge
that Sparks Willson Borges Brandt and Johnson, PC ("Sparks") is special counsel
to the Company for the purposes of this transaction, and that Sparks has not
undertaken representation of Investor in this, or any other, transaction. The
Company and Investor has been advised of the facts that Sparks represents
affiliates of the Company in unrelated transactions and hereby waive any
conflict of interest, if any.

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                  j. COUNTERPARTS. This Agreement may be executed in any number
of counterparts, each of which shall be an original, but all of which together
shall constitute one instrument.

         IN WITNESS WHEREOF, the parties hereto have executed this Stock and
Warrant Purchase Agreement as of the date set forth in the first paragraph
hereof.

COMPANY:                               INVESTORS:

INTEROSA, INC.                         ZERO.NET, INC.

By: /s/ Geoff Mulligan                 By: /s/ Craig Sternberg
   --------------------------             --------------------------
Geoff Mulligan, CEO                       Printed Name:  Craig Sternberg
                                                       ------------------------

                                       9<PAGE>   1

                                                                   Exhibit 10.12

                                 INTEROSA, INC.

                              AMENDED AND RESTATED
                            INVESTOR RIGHTS AGREEMENT

         THIS AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT (the "AGREEMENT")
is entered into as of the 28 day of June, 2000, by and among INTEROSA, INC., a
Delaware corporation ("InteRosa" or the "COMPANY"), Envision Development
Corporation, a Delaware corporation ("ENVISION"); ROCKMOUNTAIN VENTURES FUND, LP
a Delaware limited partnership, or its assignee or designee ("ROCK"); and
ZERO.NET, Inc., a Delaware corporation ("ZERO.NET"). ZERO.NET may be referred to
herein as the "SERIES C INVESTOR". Rock and Envision shall be referred to
hereinafter as the "SERIES B INVESTORS" and Envision shall be referred to herein
as the "SERIES A INVESTOR". If not otherwise designated, ZERO.NET, Rock and
Envision shall be collectively referred to as the "INVESTORS". Persons to whom
the Investors may assign rights as permitted under this Agreement shall also be
considered an "Investor" for the purposes of applicable provisions of this
Agreement.

                                    RECITALS

         WHEREAS, the Company, the Series A Investor and the Series B Investors
are parties to an Investor Rights Agreement dated November 8, 1999, as amended
(the "Original Agreement"), and

         WHEREAS, the Original Agreement may be amended with the consent of the
Company, the Series A Investor and the Series B Investors, and

         WHEREAS, the Company is selling shares of Series C Preferred Stock to
ZERO.NET pursuant to a Series C Preferred Stock Purchase Agreement (the "Series
C Purchase Agreement"), and

         WHEREAS, the Company, the Series A Investor and the Series B Investors
wish to amend the Original Agreement to make the Series C Investor a party
thereto and to add additional rights and make such other amendments as the
parties shall consent to, and

         WHEREAS, as a condition of entering into the Series C Purchase
Agreement, the Series C Investor has requested that the Company extend to it
registration rights, information rights and other rights as set forth below.

         NOW, THEREFORE, in consideration of the mutual promises,
representations, warranties, covenants and conditions set forth in this
Agreement, the parties mutually agree as follows:

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SECTION 1. GENERAL

         1.1 DEFINITIONS. As used in this Agreement the following terms shall
have the following respective meanings:

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

                   "FORM S-3" means such form under the Securities Act as in
effect on the date hereof or any successor registration form under the
Securities Act subsequently adopted by the SEC which permits inclusion or
incorporation of substantial information by reference to other documents filed
by the Company with the SEC.

                   "HOLDER" means any person owning of record Registrable
Securities that have not been sold to the public or any assignee of record of
such Registrable Securities in accordance with Section 2.10 hereof.

                   "INITIAL OFFERING" means the Company's first firm commitment
underwritten public offering of its Common Stock registered under the Securities
Act.

                  "PURCHASE AGREEMENT" shall mean the Stock and Warrant Purchase
Agreement dated November 8, 1999 between Rock and the Company;

                  "RECAPITALIZATION PLAN" shall mean the transaction under which
Sundog Technologies, Inc. was issued 550,000 shares of Series A Preferred Stock,
subsequently transferred to Envision and split on a 6 for 1 basis.

                   "REGISTER," "REGISTERED," and "REGISTRATION" refer to a
registration effected by preparing and filing a registration statement in
compliance with the Securities Act, and the declaration or ordering of
effectiveness of such registration statement or document.

                   "REGISTRABLE SECURITIES" means (a) the Shares and the Common
Stock of the Company issued or issuable upon conversion of the Shares; (b) the
Series B Preferred Stock issuable upon exercise of the Rock Warrant; and the
Common Stock of the Company issued or issuable upon conversion of the Series B
Preferred Stock issuable upon the exercise of the Rock Warrant; (c) any Common
Stock of the Company issued as (or issuable upon the conversion or exercise of
any warrant, right or other security which is issued as) a dividend or other
distribution with respect to, or in exchange for or in replacement of, such
above-described securities. Notwithstanding the foregoing, Registrable
Securities shall not include any securities sold by a person to the public
either pursuant to a registration statement or Rule 144 or sold in a private
transaction in which the transferor's rights under Section 2 of this Agreement
are not assigned.

                   "REGISTRABLE SECURITIES THEN OUTSTANDING" shall be the number
of shares determined by calculating the total number of shares of the Company's
Common Stock that are Registrable Securities and either (a) are then issued and
outstanding or (b) are issuable pursuant to then exercisable or convertible
securities.

                   "REGISTRATION EXPENSES" shall mean all expenses incurred by
the Company in complying with Section 2.2 hereof, including, without limitation,
all registration and filing fees, printing expenses, fees and disbursements of
counsel for the Company, reasonable fees and disbursements of a single special
counsel for all of the Holders, blue sky fees and expenses and the expense of
any special audits incident to or required by any such registration (but
excluding

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the compensation of regular employees of the Company which shall be paid in any
event by the Company).

                  "ROCK WARRANT" shall mean the warrants to purchase up to
52,500 shares of Series B Preferred Stock pursuant to the Purchase Agreement,
subsequently split on a 6 for 1 basis.

                   "SEC" or "COMMISSION" means the Securities and Exchange
Commission.

                   "SECURITIES ACT" shall mean the Securities Act of 1933, as
amended.

                   "SELLING EXPENSES" shall mean all underwriting discounts and
selling commissions applicable to the sale.

                   "SHARES" shall mean the Company's Series B Preferred Stock
issued pursuant to the Purchase Agreement and held by the Series B Investors and
their permitted assigns, as well as the Company's Series A Preferred Stock
issued pursuant to the Recapitalization Plan and held by the Series A Investors
and their assigns as well as the Company's Series C Preferred Stock issued
pursuant to the Series C Purchase Agreement.

SECTION 2. REGISTRATION; RESTRICTIONS ON TRANSFER

         2.1 RESTRICTIONS ON TRANSFER.

             (a) Each Holder agrees not to make any disposition of all or any
portion of the Shares or Registrable Securities unless and until:

                  (i) There is then in effect a registration statement under the
Securities Act covering such proposed disposition and such disposition is made
in accordance with such registration statement; or

                  (ii) (A) The transferee has agreed in writing to be bound by
the terms of this Agreement, (B) such Holder shall have notified the Company of
the proposed disposition and shall have furnished the Company with a detailed
statement of the circumstances surrounding the proposed disposition, and (C) if
reasonably requested by the Company, such Holder shall have furnished the
Company with an opinion of counsel, reasonably satisfactory to the Company, that
such disposition will not require registration of such shares under the
Securities Act.

                  (iii) Notwithstanding the provisions of paragraphs (i) and
(ii) above, no such registration statement or opinion of counsel shall be
necessary for a transfer by a Holder which is (A) a partnership to its partners
or former partners in accordance with partnership interests, (B) a corporation
to its shareholders in accordance with their interest in the corporation, (C) a
limited liability company to its members or former members in accordance with
their interest in the limited liability company, or (D) to the Holder's parent,
sibling, spouse or child (a "FAMILY MEMBER") or trust for the benefit of an
individual Holder; PROVIDED that in each case the transferee will be subject to
the terms of this Agreement to the same extent as if he were an original Holder
hereunder.

                                       3
<PAGE>   4

             (b) Each certificate representing Shares or Registrable Securities
shall (unless otherwise permitted by the provisions of the Agreement) be stamped
or otherwise imprinted with a legend giving effect to the restrictions in this
Agreement (in addition to any legend required under applicable state securities
laws).

             (c) The Company shall be obligated to reissue promptly unlegended
certificates at the request of any holder thereof if the holder shall have
obtained an opinion of counsel (which counsel may be counsel to the Company)
reasonably acceptable to the Company to the effect that the securities proposed
to be disposed of may lawfully be so disposed of without registration,
qualification or legend. The Company shall bear the costs of any such
reissuance, except the legal fees and expenses incurred in connection with the
rendering of the aforementioned legal opinion, if the counsel is other than
counsel to the Company.

             (d) Any legend endorsed on an instrument pursuant to applicable
state securities laws and the stop-transfer instructions with respect to such
securities shall be removed upon receipt by the Company of an order of the
appropriate blue sky authority authorizing such removal.

         2.2 REQUIRED REGISTRATION.

             (a) At any time after one year after the date on which any
registration statement covering a public offering of securities of the Company
under the Securities Act shall have become effective, the Holders constituting
at least [50%] of the total Shares then outstanding may request the Company to
register under the Securities Act all or any portion of the shares of
Registrable Securities held by such requesting holder and holders for sale in
the manner specified in such notice. Provided, however, that the only securities
which the Company shall be required to register pursuant hereto shall be shares
of Common Stock, and PROVIDED, FURTHER, HOWEVER, that, in any underwritten
public offering contemplated by, the holders of shares of Preferred Stock shall
be entitled to sell such Preferred Stock to the underwriters for conversion and
sale of the shares of Common Stock issued upon conversion thereof. The Company
shall be obligated to register Registrable Securities pursuant to this Section
2.2 only if the amount of Registrable Securities to be registered exceeds
$500,000.

             (b) Following receipt of any notice under this Section 2.2, the
Company shall immediately notify all Holders from whom notice has not been
received and shall use its best efforts to register under the Securities Act,
for public sale in accordance with the method of disposition specified in such
notice from requesting holders, the number of shares of Registrable Securities
specified in such notice (and in all notices received by the Company from other
holders within 30 days after the giving of such notice by the Company). If such
method of disposition shall be an underwritten public offering, the holders of a
majority of the shares of Registrable Securities to be sold in such offering may
designate the managing underwriter of such offering, subject to the approval of
the Company, which approval shall not be unreasonably withheld or delayed. The
Company shall be obligated to register Registrable Securities pursuant to this
Section 2.2 on two occasions only.

             (c) The Company shall be entitled to include in any registration
statement referred to in this Section 2.2, for sale in accordance with the
method of disposition specified by

                                       4
<PAGE>   5

the requesting holders, shares of Common Stock to be sold by the Company for its
own account, except as and to the extent that, in the opinion of the managing
underwriter (if such method of disposition shall be an underwritten public
offering), such inclusion would adversely affect the marketing of the
Registrable Securities to be sold.

         2.3 PIGGYBACK REGISTRATIONS. The Company shall notify all Holders in
writing at least fifteen (15) days prior to the filing of any registration
statement under the Securities Act for purposes of a public offering of
securities of the Company (including, but not limited to, registration
statements relating to secondary offerings of securities of the Company, but
excluding registration statements relating to employee benefit plans or with
respect to corporate reorganizations or other transactions under Rule 145 of the
Securities Act) and will afford each such Holder an opportunity to include in
such registration statement all or part of such Registrable Securities held by
such Holder. Each Holder desiring to include in any such registration statement
all or any part of the Registrable Securities held by it shall, within fifteen
(15) days after the above-described notice from the Company, so notify the
Company in writing. If a Holder decides not to include all of its Registrable
Securities in any registration statement thereafter filed by the Company, such
Holder shall nevertheless continue to have the right to include any Registrable
Securities in any subsequent registration statement or registration statements
as may be filed by the Company with respect to offerings of its securities, all
upon the terms and conditions set forth herein. All Holders distributing their
Registrable Securities through such underwriting shall enter into an
underwriting agreement in customary form with the underwriter or underwriters
selected for such underwriting by the Company. Notwithstanding any other
provision of the Agreement, if the underwriter determines in good faith that
marketing factors require a limitation of the number of shares to be
underwritten, the number of shares that may be included in the underwriting
shall be allocated, first, to the Company; second, to the Holders on a PRO RATA
basis based on the total number of Registrable Securities held by the Holders;
and third, to any shareholder of the Company (other than a Holder) on a PRO RATA
basis. No such reduction shall (i) reduce the securities being offered by the
Company for its own account to be included in the registration and underwriting,
or (ii) reduce the amount of securities of the selling Holders included in the
registration below twenty-five percent (25%) of the total amount of securities
included in such registration, unless such offering is the Initial Offering and
such registration does not include shares of any other selling shareholders, in
which event any or all of the Registrable Securities of the Holders may be
excluded in accordance with the immediately preceding sentence. The Company
shall have the right to terminate or withdraw any registration initiated by it
under this Section 2.3 prior to the effectiveness of such registration whether
or not any Holder has elected to include securities in such registration. The
Registration Expenses of such withdrawn registration shall be borne by the
Company.

         2.4 REGISTRATION ON FORM S-3. If at any time (i) any Holder requests
that the Company file a registration statement on Form S-3 or any successor
thereto for a public offering of all or any portion of the shares of Registrable
Securities held by such requesting holder, the reasonably anticipated aggregate
price to the public of which would exceed $500,000, and (ii) the Company is a
registrant entitled to use Form S-3 or any successor thereto to register such
shares, then the Company shall use its best efforts to register under the
Securities Act on Form S-3 or any successor thereto, for public sale in
accordance with the method of disposition specified in such notice, the number
of shares of Registrable Securities specified in such notice. Provided,

                                       5
<PAGE>   6

however, that the Company shall be obligated to comply with the requirements of
this Section 2.3 no more than one time during any twelve-month period.

         2.5 EXPENSES OF REGISTRATION. Except as specifically provided herein,
all Registration Expenses incurred in connection with any registration,
qualification or compliance pursuant to Section 2.2 shall be borne by the
Company. All Selling Expenses incurred in connection with any registrations
hereunder, shall be borne by the holders of the securities so registered PRO
RATA on the basis of the number of shares so registered.

         2.6 TERMINATION OF REGISTRATION RIGHTS. A Holder's registration rights
shall expire on the date three years following the closing of the Initial
Offering, or, if earlier, on the date the Company's Common Stock is publicly
traded on either a national securities exchange or the Nasdaq National or Small
Cap Market and all Registrable Securities held by and issuable to such Holder
(and its affiliates, partners, members and former partners and members) may be
sold under Rule 144 during any ninety (90) day period.

         2.7 FURNISHING INFORMATION. It shall be a condition precedent to the
obligations of the Company to take any action that the selling Holders shall
furnish to the Company such information regarding themselves, the Registrable
Securities held by them and the intended method of disposition of such
securities as shall be required to effect the registration of their Registrable
Securities.

         2.8 ASSIGNMENT OF REGISTRATION RIGHTS. The rights to cause the Company
to register Registrable Securities pursuant to this Section 2 may be assigned by
a Holder to a transferee or assignee of Registrable Securities which (a) is a
subsidiary, parent, general partner, limited partner, retired partner, member or
retired member of a Holder, (b) is a Holder's Family Member or trust for the
benefit of an individual Holder, or (c) acquires at least fifty thousand
(50,000) shares of Registrable Securities (as adjusted for stock splits and
combinations); PROVIDED, HOWEVER, (i) the transferor shall, within ten (10) days
after such transfer, furnish to the Company written notice of the name and
address of such transferee or assignee and the securities with respect to which
such registration rights are being assigned and (ii) such transferee shall agree
to be subject to all restrictions set forth in this Agreement.

         2.9 AMENDMENT OF REGISTRATION RIGHTS. Any provision of this Section 2
may be amended and the observance thereof may be waived (either generally or in
a particular instance and either retroactively or prospectively), only with the
written consent of the Company and the Holders of one-hundred percent (100%) of
the Registrable Securities then outstanding for a period ending 120 days from
the date of this Agreement, and at least eighty percent (80%) of the Registrable
Securities then outstanding thereafter. Any amendment or waiver effected in
accordance with this Section 2.7 shall be binding upon each Holder and the
Company. By acceptance of any benefits under this Section 2, Holders hereby
agree to be bound by the provisions hereunder.

         2.10 LIMITATION ON SUBSEQUENT REGISTRATION RIGHTS. The Company shall
not, without the prior written consent of the Holders of one-hundred percent
(100%) of the Registrable Securities then outstanding for a period ending 120
days from the date of this

                                       6
<PAGE>   7

Agreement, and at least eighty percent (80%) of the Registrable Securities then
outstanding thereafter, enter into any agreement with any holder or prospective
holder of any securities of the Company that would grant such holder
registration rights pari passu or senior to those granted to the Holders
hereunder.

         2.11 "MARKET STAND-OFF" AGREEMENT; AGREEMENT TO FURNISH INFORMATION.
Each Holder hereby agrees that such Holder shall not sell, transfer, make any
short sale of, grant any option for the purchase of, or enter into any hedging
or similar transaction with the same economic effect as a sale, any Common Stock
(or other securities) of the Company held by such Holder (other than those
included in the registration) for a period specified by the representative of
the underwriters of Common Stock (or other securities) of the Company not to
exceed one hundred eighty (180) days following the effective date of a
registration statement of the Company filed under the Securities Act; PROVIDED
that:

                  (i) such agreement shall apply only to the Company's Initial
Offering; and

                  (ii) all officers and directors of the Company and holders of
at least one percent (1%) of the Company's voting securities enter into similar
agreements.

         Each Holder agrees to execute and deliver such other agreements as may
be reasonably requested by the Company or the underwriter which are consistent
with the foregoing or which are necessary to give further effect thereto. In
addition, if requested by the Company or the representative of the underwriters
of Common Stock (or other securities) of the Company, each Holder shall provide,
within ten (10) days of such request, such information as may be required by the
Company or such representative in connection with the completion of any public
offering of the Company's securities pursuant to a registration statement filed
under the Securities Act. The Company may impose stop-transfer instructions with
respect to the shares of Common Stock (or other securities) subject to the
foregoing restriction until the end of said one hundred eighty (180) day period.

         2.12 INDEMNIFICATION. In the event any Registrable Securities are
included in a registration statement:

             (a) To the extent permitted by law, the Company will indemnify and
hold harmless each Holder, the partners, officers and directors of each Holder,
any underwriter (as defined in the Securities Act) for such Holder and each
person, if any, who controls such Holder or underwriter within the meaning of
the Securities Act or the Exchange Act, against any losses, claims, damages, or
liabilities (joint or several) to which they may become subject under the
Securities Act, the Exchange Act or other federal or state law, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon any of the following statements, omissions or violations
(collectively a "VIOLATION") by the Company: (i) any untrue statement or alleged
untrue statement of a material fact contained in such registration statement,
including any preliminary prospectus or final prospectus contained therein or
any amendments or supplements thereto, (ii) the omission or alleged omission to
state therein a material fact required to be stated therein, or necessary to
make the statements therein not misleading, or (iii) any violation or alleged
violation by the Company of the Securities Act, the

                                       7
<PAGE>   8

Exchange Act, any state securities law or any rule or regulation promulgated
under the Securities Act, the Exchange Act or any state securities law in
connection with the offering covered by such registration statement; and the
Company will pay as incurred to each such Holder, partner, officer, director,
underwriter or controlling person for any legal or other expenses reasonably
incurred by them in connection with investigating or defending any such loss,
claim, damage, liability or action; PROVIDED HOWEVER, that the indemnity
agreement contained in this Section shall not apply to amounts paid in
settlement of any such loss, claim, damage, liability or action if such
settlement is effected without the consent of the Company, which consent shall
not be unreasonably withheld, nor shall the Company be liable in any such case
for any such loss, claim, damage, liability or action to the extent that it
arises out of or is based upon a violation which occurs in reliance upon and in
conformity with written information furnished expressly for use in connection
with such registration by such Holder, partner, officer, director, underwriter
or controlling person of such Holder.

             (b) To the extent permitted by law, each Holder will, if
Registrable Securities held by such Holder are included in the securities as to
which such registration qualifications or compliance is being effected,
indemnify and hold harmless the Company, each of its directors, its officers and
each person, if any, who controls the Company within the meaning of the
Securities Act, any underwriter and any other Holder selling securities under
such registration statement or any of such other Holder's partners, directors or
officers or any person who controls such Holder, against any losses, claims,
damages or liabilities (joint or several) to which the Company or any such
director, officer, controlling person, underwriter or other such Holder, or
partner, director, officer or controlling person of such other Holder may become
subject under the Securities Act, the Exchange Act or other federal or state
law, insofar as such losses, claims, damages or liabilities (or actions in
respect thereto) arise out of or are based upon any Violation, in each case to
the extent (and only to the extent) that such Violation occurs in reliance upon
and in conformity with written information furnished by such Holder under an
instrument duly executed by such Holder and stated to be specifically for use in
connection with such registration; and each such Holder will pay as incurred any
legal or other expenses reasonably incurred by the Company or any such director,
officer, controlling person, underwriter or other Holder, or partner, officer,
director or controlling person of such other Holder in connection with
investigating or defending any such loss, claim, damage, liability or action if
it is judicially determined that there was such a Violation; PROVIDED, HOWEVER,
that the indemnity agreement shall not apply to amounts paid in settlement of
any such loss, claim, damage, liability or action if such settlement is effected
without the consent of the Holder, which consent shall not be unreasonably
withheld; PROVIDED FURTHER, that in no event shall any indemnity exceed the net
proceeds from the offering received by such Holder.

             (c) Promptly after receipt by an indemnified party of notice of the
commencement of any action (including any governmental action), such indemnified
party will, if a claim in respect thereof is to be made against any indemnifying
party, deliver to the indemnifying party a written notice of the commencement
thereof and the indemnifying party shall have the right to participate in, and,
to the extent the indemnifying party so desires, jointly with any other
indemnifying party similarly noticed, to assume the defense thereof with counsel
mutually satisfactory to the parties; PROVIDED, HOWEVER, that an indemnified
party shall have the right to retain its own counsel, with the fees and expenses
to be paid by the indemnifying party, if representation of such indemnified
party by the counsel retained by the indemnifying party

                                       8
<PAGE>   9

would be inappropriate due to actual or potential differing interests between
such indemnified party and any other party represented by such counsel in such
proceeding. The failure to deliver written notice to the indemnifying party
within a reasonable time of the commencement of any such action, if materially
prejudicial to its ability to defend such action, shall relieve such
indemnifying party of any liability to the indemnified party, but the omission
so to deliver written notice to the indemnifying party will not relieve it of
any liability that it may have to any indemnified party otherwise than under
this Section 2.10.

             (d) If the indemnification provided for in this Section 2.10 is
held by a court of competent jurisdiction to be unavailable to an indemnified
party with respect to any losses, claims, damages or liabilities referred to
herein, the indemnifying party, in lieu of indemnifying such indemnified party
thereunder, shall to the extent permitted by applicable law contribute to the
amount paid or payable by such indemnified party as a result of such loss,
claim, damage or liability in such proportion as is appropriate to reflect the
relative fault of the indemnifying party on the one hand and of the indemnified
party on the other in connection with the Violation(s) that resulted in such
loss, claim, damage or liability, as well as any other relevant equitable
considerations. The relative fault of the indemnifying party and of the
indemnified party shall be determined by a court of law by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact
or the omission to state a material fact relates to information supplied by the
indemnifying party or by the indemnified party and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission; PROVIDED, that in no event shall any contribution by a
Holder hereunder exceed the net proceeds from the offering received by such
Holder.

             (e) The obligations of the Company and Holders under this Section
2.10 shall survive completion of any offering of Registrable Securities in a
registration statement and the termination of this agreement. No Indemnifying
Party, in the defense of any such claim or litigation, shall, except with the
consent of each Indemnified Party, consent to entry of any judgment or enter
into any settlement which does not include as an unconditional term thereof the
giving by the claimant or plaintiff to such Indemnified Party of a release from
all liability in respect to such claim or litigation.

SECTION 3. COVENANTS OF THE COMPANY

         3.1 BASIC FINANCIAL INFORMATION AND REPORTING.

             (a) The Company will maintain true books and records of account in
which full and correct entries will be made of all its business transactions
pursuant to a system of accounting established and administered in accordance
with generally accepted accounting principles consistently applied, and will set
aside on its books all such proper accruals and reserves as shall be required
under generally accepted accounting principles consistently applied.

             (b) InteRosa shall timely provide each Investor no later than ten
days after the end of each month, monthly reports summarizing the preceding
month's activities and developments. These reports should be reasonably brief
and should draw on the existing data companies routinely gather for internal
management purposes. Monthly reports need only communicate the general progress
of the business and provide indication of how management is

                                       9
<PAGE>   10

tracking and acting upon relevant information and trends. Such reports should
include information on general cost trends, sales and orders, as well as major
new activities and developments. All such reports may be made to Investors by
facsimile transmission or by e-mail attachment.

             (c) Within a week after the monthly report referenced in subsection
(b) above, a verbal update on business conditions and outlook to augment the
monthly written report. This verbal update shall be made to a representative(s)
of Investors at time and place mutually agreed upon. The report shall preferably
be made in person face-to-face (provided that the Investor shall pay travel and
other expenses), though one or more or all parties may participate via
teleconference if Investor and/or its agents are not available convenient to the
local of Company's headquarters. This obligation to provide a verbal update will
be satisfied if a representative of each Investor is in attendance at a Company
Board meeting that occurs within a week after the monthly report.

             (d) As soon as practicable after the end of each fiscal year of the
Company, and in any event within one hundred twenty (120) days thereafter, the
Company will furnish each Investor a balance sheet of the Company, as at the end
of such fiscal year, and a statement of income and a statement of cash flows of
the Company, for such year, all audited by independent accountants and prepared
in accordance with generally accepted accounting principles consistently applied
and setting forth in each case in comparative form the figures for the previous
fiscal year, all in reasonable detail. Such financial statements shall be
accompanied by a report and opinion thereon by independent public accountants of
national standing selected by the Company's Board of Directors.

             (e) The Company will furnish each Investor, as soon as practicable
after the end of the first, second and third quarterly accounting periods in
each fiscal year of the Company, and in any event within forty-five (45) days
thereafter, a balance sheet of the Company as of the end of each such quarterly
period, and a statement of income and a statement of cash flows of the Company
for such period and for the current fiscal year to date, prepared in accordance
with generally accepted accounting principles, with the exception that no notes
need be attached to such statements and year-end audit adjustments may not have
been made.

             (f) If prepared by the Company, the Company will also furnish each
Investor, as available with respect to each completed month, a balance sheet,
statement of income and a statement of cash flows of the Company for month, as
well as a copy of all filings made with the SEC, if any.

         3.2 INSPECTION RIGHTS. Each Investor shall have the right to visit and
inspect any of the properties of the Company or any of its subsidiaries, and to
discuss the affairs, finances and accounts of the Company or any of its
subsidiaries with its officers, and to review such information as is reasonably
requested all at such reasonable times and as often as may be reasonably
requested; PROVIDED, HOWEVER, that (i) the Company shall not be obligated under
this Section 3.2 with respect to a competitor of the Company or with respect to
information which the Board of Directors determines in good faith is
confidential and should not, therefore, be disclosed and (ii) such Investor
shall give the Company three (3) business days advance notice of any visit and
inspection.

                                       10
<PAGE>   11

         3.3 CONFIDENTIALITY OF RECORDS. Each Investor agrees to use, and to use
its best efforts to insure that its authorized representatives use, the same
degree of care as such Investor uses to protect its own confidential information
to keep confidential any information furnished to it which the Company
identifies as being confidential or proprietary (so long as such information is
not in the public domain), except that such Investor may disclose such
proprietary or confidential information to any attorney, accountant,
professional advisor, partner, subsidiary or parent of such Investor for the
purpose of evaluating its investment in the Company as long as such person or
entity is advised of the confidentiality provisions of this Section 3.3.

         3.4 ASSIGNMENT OF RIGHT OF FIRST REFUSAL. In the event the Company
elects not to exercise any right of first refusal or right of first offer the
Company may have on a proposed transfer of any of the Company's outstanding
capital stock pursuant to the Company's charter documents, by contract or
otherwise, the Company shall, to the extent it may do so, assign such right of
first refusal or right of first offer to each Investor. In the event of such
assignment, each Investor shall have a right to purchase its PRO RATA portion
(as defined in Section 4.1) of the capital stock proposed to be transferred.

         3.5 COMMITTEES. In the event that the Company establishes audit,
compensation, nominating or other committees, one director who is elected by the
Series A Preferred Stock, and one director who is elected by the Series B
Preferred Stock, shall be entitled to serve on such committees.

         3.6 INDEMNIFICATION. The Company's Amended and Restated Certificate of
Incorporation and Bylaws shall provide, to the maximum extent permitted by law,
for elimination of the liability of directors and for indemnification of
directors and officers for acts on behalf of the Company. The Company shall use
reasonably commercial efforts promptly after the closing to determine if
directors and officers liability insurance is available on commercially
reasonable terms for coverage of at least $1,000,000 on a claims made basis, and
if such coverage is available on commercially reasonable terms, the Company
shall promptly purchase and, absent unanimous board consent to the contrary,
maintain such coverage and, keep it effective until an Initial Offering.

         3.7 KEY MAN INSURANCE. The Company will use its best efforts to obtain
within 90 days of Closing and, absent unanimous board consent to the contrary,
maintain thereafter life insurance for Steve Senator, Geoff Mulligan and John
Blumenthal with minimum benefits payable to the Company upon the death of any of
them in the amount of $1,000,000 each.

         3.8 LIQUIDITY

             (a) InteRosa shall at all times take reasonable steps to position
itself for either an Initial Offering or a merger, sale of stock or sale of
assets within five years after the date of this Agreement. Failure to achieve
such goal shall not be a material breach of this Agreement.

             (b) InteRosa shall at all times act in accordance with the
objective of maximizing the long-term shareholder value of the Company for the
Series A and B Preferred Stock and Common Stock (with no single method of
generating a payout to shareholders being preferred; rather, the goal is to
maximize value regardless of the means);

                                       11
<PAGE>   12

         3.9 ACHIEVING GOALS. In pursuing the goals and objectives stated in the
preceding paragraph 3.8, InteRosa shall use all reasonable efforts to position
itself to attract, seek and obtain further funding from a prominent "first tier"
venture capital firm or strategic partner. InteRosa hereby agrees to pursue the
aforementioned financing with the full realization and understanding that a
condition of such an investment may be that such investor chooses management of
the Company, thereby potentially causing a change in the chief executive officer
and/or other management positions of the Company. Failure to achieve such goal
shall not be a material breach of this Agreement.

         3.10 LIQUIDITY. With respect to any Acquisition (as defined in the
Amended and Restated Certificate of Incorporation) the Company shall use its
commercially reasonable efforts to obtain publicly traded shares (by S-3
registration, S-4 Registration, fairness hearing or other means) with respect to
any such event that involves issuance of securities to the shareholders of the
Company.

         3.11 TERMINATION OF COVENANTS. All covenants of the Company contained
in Section 3 shall expire and terminate as to each Investor on the earlier of
(i) the closing of an Initial Offering; and (ii) the closing of an Acquisition
or Liquidation Event (as such terms are defined in the Amended and Restated
Certificate of Incorporation).

SECTION 4. RIGHT OF FIRST REFUSAL

         4.1 SUBSEQUENT OFFERINGS. Each Investor shall have a right to purchase
its Pro Rata Share, as defined below, of all Equity Securities, as defined
below, that the Company may, from time to time, propose to sell and issue after
the date of this Agreement, other than the Equity Securities excluded by Section
4.6 hereof. Each Investor's pro rata share is equal to the ratio of (A) the
number of shares of the Company's Common Stock (including all shares of Common
Stock issued or issuable upon conversion of the Shares) of which such Investor
is deemed to be a holder immediately prior to the issuance of such Equity
Securities to (B) the total number of shares of the Company's outstanding Common
Stock (including all shares of Common Stock issued or issuable upon conversion
of the Shares or upon the exercise of any outstanding warrants, or other
convertible securities) immediately prior to the issuance of the Equity
Securities. The term "Equity Securities" shall mean (i) any Common Stock,
Preferred Stock or other security of the Company, (ii) any security convertible,
with or without consideration, into any Common Stock, Preferred Stock or other
security (including any option to purchase such a convertible security), (iii)
any security carrying any warrant or right to subscribe to or purchase any
Common Stock, Preferred Stock or other security or (iv) any such warrant or
right.

         4.2 EXERCISE OF RIGHTS. If the Company proposes to issue any Equity
Securities, it shall give each Investor written notice of its intention,
describing the Equity Securities, the price and the terms and conditions upon
which the Company proposes to issue the same. Each Investor shall have fifteen
(15) business days from the giving of such notice to agree to purchase its Pro
Rata Share of the Equity Securities for the price and upon the terms and
conditions specified in the notice by giving written notice to the Company and
stating therein the quantity of Equity Securities to be purchased.
Notwithstanding the foregoing, the Company shall not be required to offer or
sell such Equity Securities to any Investor if such offer would cause the
Company to be in violation of applicable federal securities laws by virtue of
such offer or sale.

                                       12
<PAGE>   13

         4.3 ISSUANCE OF EQUITY SECURITIES TO OTHER PERSONS. If not all of the
Investors elect to purchase their Pro Rata Share of the Equity Securities, then
the Company shall promptly notify in writing the Investors who do so elect and
shall offer such Investors the right to acquire such unsubscribed shares. The
Investors shall have ten (10) business days after receipt of such notice to
notify the Company of its election to purchase all or a portion thereof of the
unsubscribed shares. If the Investors fail to exercise in full their respective
rights, the Company shall have ninety (90) days thereafter to sell the Equity
Securities in respect of which the Investors' rights were not exercised, at a
price and upon general terms and conditions materially no more favorable to the
purchasers thereof than specified in the Company's notice to the Investors
pursuant to Section 4.2 hereof. If the Company has not sold such Equity
Securities within ninety (90) days of the notice provided pursuant to Section
4.2, the Company shall not thereafter issue or sell any Equity Securities,
without first offering such securities to the Investors in the manner provided
above.

         4.4 TERMINATION OF RIGHTS OF FIRST REFUSAL. The rights established by
this Section 4 shall not apply to, and shall terminate upon the closing of an
Initial Offering. The rights of first refusal established by this Section 4 may
be amended, or any provision waived, on behalf of all Investors with the written
consent of Investors holding one-hundred percent (100%) of the Registrable
Securities then outstanding for a period ending 120 days from the date of this
Agreement, and at least eighty percent (80%) of the Registrable Securities held
by all Investors thereafter.

         4.5 TRANSFER OF RIGHTS OF FIRST REFUSAL. The rights of each Investor
under this Section 4 may be transferred to the same parties, subject to the same
restrictions, as any transfer of registration rights.

         4.6 EXCLUDED SECURITIES. The rights established by this Section 4 shall
have no application to any of the following Equity Securities:

             (a) shares of Common Stock (and/or options, warrants or other
Common Stock purchase rights issued pursuant to such options, warrants or other
rights) issued or to be issued to employees, officers or directors of, or
consultants or advisors to the Company or any subsidiary, pursuant to stock
purchase or stock option plans or other arrangements that are either (a)
commercially reasonable as approved by the Board of Directors or (b) unanimously
approved by the Board of Directors;

             (b) any Equity Securities issued for consideration other than cash
pursuant to a merger, consolidation, acquisition or similar business combination
that has been unanimously approved by the Board of Directors;

             (c) shares of Common Stock issued in connection with any stock
split, stock dividend or recapitalization by the Company;

             (d) any Equity Securities issued pursuant to any equipment leasing
arrangement, or debt financing from a bank or similar financial institution that
has been unanimously approved by the Board of Directors;

                                       13
<PAGE>   14

             (e) any Equity Securities issued to venders or customers of the
Company, or to persons in similar commercial situations with the Company,
PROVIDED that such securities constitute less than one percent (1%) of the
Company's outstanding securities at the time of such issuance and such issuances
are unanimously approved by the Board of Directors;

             (f) the Shares (as defined in the Purchase Agreement) and the Rock
Warrant issued pursuant to the Purchase Agreement;

             (g) Series B Preferred Stock issued upon exercise of the Rock
Warrant and the Common Stock issued upon conversion of such Series B Preferred
Stock;

             (h) Series A Preferred Stock issued pursuant to the
Recapitalization Plan and the Common Stock issued upon conversion of such Series
A Preferred Stock; and

             (i) Series C Preferred Stock issued pursuant to the Series C
Purchase Agreement and the Common Stock issued upon conversion of such Series C
Preferred Stock; and

             (j) any Equity Securities that are issued by the Company pursuant
to a registration statement filed under the Securities Act.

         4.7 TERMINATION OF RIGHTS. The rights established by this Section 4
shall terminate as to a particular Investor as to all future issuances of Equity
Securities in the event that an Investor fails to purchase such Investors Pro
Rata Share of an issuance of Equity Securities (other than Excluded Securities).

SECTION 5. RIGHT OF PARTICIPATION IN SALES

         5.1 NOTICES. If at any time any Investor (a "Selling Stockholder")
desires to sell all or any part of its Shares pursuant to a bona fide offer from
a third party other than from one or more of the other Investors (the
"Purchaser"), the Selling Stockholder shall first comply with the terms of the
Bylaws' Right of First Refusal. In the event that the Right of First Refusal is
not exercised or only exercised as to a portion of the Shares proposed to be
sold, the Selling Stockholder shall immediately give notice to the other
Investors (i) the purchase price per share, (ii) the terms and conditions of the
offer, (iii) the identity of the Purchaser, and (iv) the status of the Right of
First Refusal ("Offer Notice"). Should any other Investor wish to participate in
the sale to the Purchaser, for the price and under the terms and conditions
stated in the Offer Notice, such other Investor shall, within fifteen days of
its receipt of the Offer Notice, reply to the Offer Notice by sending a notice
to the Selling Stockholder from whom it received a Notice, of its desire to do
so (the "Participation Notice").

         5.2 PARTICIPATION. Each Investor shall have the right to sell that
number of Shares (for purposes of this Section 5, its "Pro Rata Fraction") as
shall be equal to the number of Shares that the Investors collectively have the
right to sell under Section 5.1 multiplied by a fraction, the numerator of which
shall be the number of shares then owned by such Investor and the denominator of
which shall be the number of Shares then owned by all of the Investors. If an
Investor elects to sell less than its Pro Rata Fraction, the other Investors
shall, among them, have the right to sell up to the balance of the Shares which
the Investors collectively are entitled to sell under Section 5.1. Such right
may be exercised by an Investor electing to sell more than its Pro

                                       14
<PAGE>   15

Rata Fraction. If, as a result thereof, such elections exceed the total number
of Shares eligible to be sold by the Investors, the participating Investors
shall be cut back with respect to their elections on a pro rata basis in
accordance with their respective Pro Rata Fractions or as they may otherwise
agree among themselves.

         5.3 RESTRICTIONS. Any Shares sold by a Selling Stockholder pursuant to
this Section 5 shall no longer be subject to the restrictions imposed by this
Agreement and any Shares sold by a participating Investor pursuant to this
Section 5 shall no longer be entitled to the benefits conferred by this
Agreement. The Investors' right to participate in sales pursuant to this Section
5 shall not apply with respect to sales of Shares to the Company.

         5.4 FAILURE TO PARTICIPATE

             (a) Should any or all of the other Investors fail to elect, within
the time specified in this Agreement, to participate in the sale to the
Purchaser, then the Selling Stockholder and any participating Investor so
electing, shall be permitted for a period of 60 days to proceed with the
proposed sale to the Purchaser under substantially the same terms and conditions
as originally set out in the Offer Notice.

             (b) Neither the Selling Stockholder nor any participating Investor
so electing, may, without giving a new Offer Notice of his or its intention to
do so, sell any or all Shares to the person or entity and on the terms specified
in the Offer Notice after said 60 day period has elapsed, or to any other person
or entity or at any other price or on any other terms and conditions than those
specified in the Offer Notice.

SECTION 6. MISCELLANEOUS

         6.1 GOVERNING LAW. This Agreement shall be governed by and construed
under the laws of the State of Colorado as applied to agreements to be performed
entirely within Colorado.

         6.2 SUCCESSORS AND ASSIGNS. Except as otherwise expressly provided
herein, the provisions hereof shall inure to the benefit of, and be binding
upon, the successors, assigns, heirs, executors, and administrators of the
parties hereto and shall inure to the benefit of and be enforceable by each
person who shall be a Holder from time to time; PROVIDED, HOWEVER, that prior to
the receipt by the Company of adequate written notice of the transfer of any
Registrable Securities specifying the full name and address of the transferee,
the Company may deem and treat the person listed as the holder of such shares in
its records as the absolute owner and holder of such shares for all purposes,
including the payment of dividends or any redemption price.

         6.3 ENTIRE AGREEMENT. This Agreement, the Recapitalization Plan and the
Purchase Agreement and the other documents delivered pursuant thereto constitute
the full and entire understanding and agreement between the parties with regard
to the subjects hereof and no party shall be liable or bound to any other in any
manner by any representations, warranties, covenants and agreements except as
specifically set forth herein and therein.

                                       15
<PAGE>   16

         6.4 SEVERABILITY. The invalidity or unenforceability of any provision
of this Agreement shall not affect the validity or enforceability of any other
provision hereof unless the effect of the declaration of invalidity or
unenforceabilty is to reduce the value of the Investor's investment, in which
event the court declaring any provision unenforceable shall be required to
reform the Agreement so as to protect the Investor from any reduction in the
value of its investment in a manner as nearly identical to the original
provision declared invalid as may be possible. Notwithstanding the foregoing,
this Section 5.4 does not apply to Section 2.10, subsection (d) of which governs
the invalidity or unenforceability of indemnification.

         6.5 AMENDMENT AND WAIVER.

             (a) Except as otherwise expressly provided, this Agreement may be
amended or modified only upon the written consent of the Company and the holders
of one-hundred percent (100%) of the Registrable Securities then outstanding for
a period ending 120 days from the date of this Agreement, and at least eighty
percent (80%) of the Registrable Securities thereafter.

             (b) Except as otherwise expressly provided, the obligations of the
Company and the rights of the Holders under this Agreement may be waived only
with the written consent of one-hundred percent (100%) of the Registrable
Securities then outstanding for a period ending 120 days from the date of this
Agreement, and the holders of at least eighty percent (80%) of the Registrable
Securities thereafter.

         6.6 DELAYS OR OMISSIONS. It is agreed that no delay or omission to
exercise any right, power, or remedy accruing to any Holder, upon any breach,
default or noncompliance of the Company under this Agreement shall impair any
such right, power, or remedy, nor shall it be construed to be a waiver of any
such breach, default or noncompliance, or any acquiescence therein, or of any
similar breach, default or noncompliance thereafter occurring. It is further
agreed that any waiver, permit, consent, or approval of any kind or character on
any Holder's part of any breach, default or noncompliance under the Agreement or
any waiver on such Holder's part of any provisions or conditions of this
Agreement must be in writing and shall be effective only to the extent
specifically set forth in such writing. All remedies, either under this
Agreement, by law, or otherwise afforded to Holders, shall be cumulative and not
alternative.

         6.7 NOTICES. All notices required or permitted hereunder shall be in
writing and shall be deemed effectively given: (a) upon personal delivery to the
party to be notified, (b) e-mail if confirmed under subsection (d) below, (c)
when sent by confirmed telex or facsimile if sent during normal business hours
of the recipient; if not, then on the next business day, (d) five (5) days after
having been sent by registered or certified mail, return receipt requested,
postage prepaid, or (e) one (1) day after deposit with a nationally recognized
overnight courier, specifying next day delivery, with written verification of
receipt. All communications shall be sent to the party to be notified at the
address as set forth in the Purchase Agreement or at such other address as such
party may designate by ten (10) days advance written notice to the other parties
hereto.

         6.8 ATTORNEYS' FEES. In the event that any suit or action is instituted
to enforce any provision in this Agreement, the prevailing party in such dispute
shall be entitled to recover from

                                       16
<PAGE>   17

the losing party all fees, costs and expenses of enforcing any right of such
prevailing party under or with respect to this Agreement, including without
limitation, such reasonable fees and expenses of attorneys and accountants,
which shall include, without limitation, all fees, costs and expenses of
appeals.

         6.9 TITLES AND SUBTITLES. The titles of the sections and subsections of
this Agreement are for convenience of reference only and are not to be
considered in construing this Agreement.

         6.10 COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which shall be an original, but all of which together
shall constitute one instrument.

               [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK.]

                                       17
<PAGE>   18

         IN WITNESS WHEREOF, the parties hereto have executed this AMENDED AND
RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first
paragraph hereof.

COMPANY:                                   INVESTORS:

INTEROSA, INC.                             ROCKMOUNTAIN VENTURES FUND, LP

By: /s/ Geoff Mulligan                     By:
   ------------------------------             ----------------------------------
   Geoff Mulligan, CEO                        Printed Name:
                                                           ---------------------
                                              Title:
                                                     ---------------------------

                                           ENVISION DEVELOPMENT CORPORATION

                                           By: /s/ William Patch
                                              ----------------------------------
                                              Printed Name: William Patch
                                                           ---------------------
                                              Title: Chief Executive Officer
                                                     ---------------------------

                                           ZERO.NET, INC.

                                           By: /s/ Craig Sternberg
                                              ----------------------------------
                                              Printed Name: Craig Sternberg
                                                           ---------------------

                                       18

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