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                                                                   EXHIBIT 10.06



                                                                        ANNEX IV
                                                                              TO
                                                             SECURITIES PURCHASE
                                                                       AGREEMENT


                          REGISTRATION RIGHTS AGREEMENT


        THIS REGISTRATION RIGHTS AGREEMENT, dated as of April 13, 2000 (this
"Agreement"), is made by and between ESAT, INC., a Nevada corporation, with
headquarters located at 16520 Harbor Boulevard, Bldg. G, Fountain Valley,
California 92708 (the _Company_), and each entity named on a signature page
hereto (each, an _Initial Investor_) (each agreement with an Initial Investor
being deemed a separate and independent agreement between the Company and such
Initial Investor, except that each Initial Investor acknowledges and consents to
the rights granted to each other Initial Investor under such agreement).


                              W I T N E S S E T H:

        WHEREAS, upon the terms and subject to the conditions of the Securities
Purchase Agreement, dated as of April 13, 2000, between the Initial Investor and
the Company (the "Securities Purchase Agreement"; terms not otherwise defined
herein shall have the meanings ascribed to them in the Securities Purchase
Agreement), the Company has agreed to issue and sell to the Initial Investor,
Series D 6% Convertible Preferred Stock of the Company, in an aggregate
liquidation amount not exceeding $7,500,000 (the "Preferred Stock"); and

        WHEREAS, the Company has agreed to issue the Warrants to the Initial
Investor in connection with the issuance of the Preferred Stock; and

        WHEREAS, the Preferred Stock is convertible into shares of Common Stock
(the "Conversion Shares"; which term, for purposes of this Agreement, shall
include shares of Common Stock of the Company issuable in lieu of accrued
interest on conversion as contemplated by the Certificate of Designations) upon
the terms and subject to the conditions contained in the Certificate of
Designations, and the Warrants may be exercised for the purchase of shares of
Common Stock (the _Warrant Shares_) upon the terms and conditions of the
Warrants; and

        WHEREAS, to induce the Initial Investor to execute and deliver the
Securities Purchase Agreement, the Company has agreed to provide certain
registration rights under the Securities Act of 1933, as amended, and the rules
and regulations thereunder, or any similar successor statute (collectively, the
"Securities Act"), with respect to the Conversion Shares and the Warrant Shares;

        NOW, THEREFORE, in consideration of the premises and the mutual
covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are

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hereby acknowledged, the Company and the Initial Investor hereby agree as
follows:

        1. DEFINITIONS. As used in this Agreement, the following terms shall
have the following meanings:

        (a) "Investor" means the Initial Investor and any permitted transferee
or assignee who agrees to become bound by the provisions of this Agreement in
accordance with Section 9 hereof and who holds Preferred Stock, Warrants or
Registrable Securities.

        (b) Potential Material Event_ means any of the following: (i) the
possession by the Company of material information not ripe for disclosure in a
registration statement, which shall be evidenced by determinations in good faith
by the Board of Directors of the Company that disclosure of such information in
the registration statement would be detrimental to the business and affairs of
the Company; or (ii) any material engagement or activity by the Company which
would, in the good faith determination of the Board of Directors of the Company,
be adversely affected by disclosure in a registration statement at such time,
which determination shall be accompanied by a good faith determination by the
Board of Directors of the Company that the registration statement would be
materially misleading absent the inclusion of such information.

        (c) "Register," "Registered," and "Registration" refer to a registration
effected by preparing and filing a Registration Statement or Statements in
compliance with the Securities Act and pursuant to Rule 415 under the Securities
Act or any successor rule providing for offering securities on a continuous
basis ("Rule 415"), and the declaration or ordering of effectiveness of such
Registration Statement by the United States Securities and Exchange Commission
(the "SEC").

        (d) "Other Registrable Securities" means the Conversion Shares and
Warrant Shares issuable to the Series C Preferred Stockholders, and the Warrant
Shares issuable to Grayson & Associates.

        (e) "Registrable Securities" means the Conversion Shares and the Warrant
Shares applicable to the Preferred Stock and Warrants issued on the Initial
Closing Date or the relevant Additional Closing Date, as the case may be, and
the Other Registrable Securities as defined herein.

        (f) "Registration Statement" means a registration statement of the
Company under the Securities Act.

        2. REGISTRATION.

        (a) MANDATORY REGISTRATION.

        (i) The Company shall prepare and file with the SEC, as soon as possible
after the Initial Closing Date, but no later than May 10, 2000 (the _Required
Filing Date), either a Registration Statement on Form SB-2, if the Company is
then eligible to file using such




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form, and if not so eligible, on Form S-1 or other appropriate form, or an
amendment to an existing Registration Statement , in either event registering
for resale by the Investor a sufficient number of shares of Common Stock for the
Initial Investors to sell the Registrable Securities (or such lesser number as
may be required by the SEC, but in no event less than two hundred percent (200%)
of the aggregate number of shares (A) into which the relevant Preferred Stock
and all interest thereon through their respective Maturity Dates would be
convertible at the time of filing of such Registration Statement (assuming for
such purposes that all such Preferred Stock had been eligible to be converted,
and had been converted, into Conversion Shares in accordance with their terms,
whether or not such accrual of interest, eligibility or conversion had in fact
occurred as of such date) and (B) which would be issued upon exercise of all of
the relevant Warrants at the time of filing of the Registration Statement
(assuming for such purposes that such Warrants had been eligible to be exercised
and had been exercised in accordance with their terms, whether or not such
eligibility or exercise had in fact occurred as of such date). The Registration
Statement (W) shall include only the Registrable Securities and (X) shall also
state that, in accordance with Rule 416 and 457 under the Securities Act, it
also covers such indeterminate number of additional shares of Common Stock as
may become issuable upon conversion of the Preferred Stock and the exercise of
the Warrants to prevent dilution resulting from stock splits or stock dividends.
The Company will use its reasonable best efforts to cause such Registration
Statement to be declared effective on a date (a "Required Effective Date") which
is no later than is the earlier of (Y) five (5) days after notice by the SEC
that it may be declared effective or (Z) ninety (90) days after the Initial
Closing Date or thirty (30) days after the relevant Additional Closing Date, as
the case may be.

        (ii) If at any time (an _Increased Registered Shares Date_), the number
of shares of Common Stock represented by the Registrable Shares, issued or to be
issued as contemplated by the Transaction Agreements, exceeds the aggregate
number of shares of Common Stock then registered, the Company shall, within ten
(10) business days after receipt of a written notice from any Investor, either
(X) amend the relevant Registration Statement filed by the Company pursuant to
the preceding provisions of this Section 2, if such Registration Statement has
not been declared effective by the SEC at that time, to register two hundred
percent (200%) of such Registrable Shares, computed as contemplated by the
immediately preceding subparagraph (i), or (Y) if such Registration Statement
has been declared effective by the SEC at that time, file with the SEC an
additional Registration Statement on Form SB-2 or other appropriate registration
statement form (an _Additional Registration Statement_) to register two hundred
percent (200%) of the shares of Common Stock represented by the Registrable
Shares, computed as contemplated by the immediately preceding subparagraph (i),
that exceed the aggregate number of shares of Common Stock already registered.
The Company will use its reasonable best efforts to cause such Registration
Statement to be declared effective on a date (a "Required Effective Date") which
is no later than (Q) with respect to a Registration Statement under clause (X)
of this subparagraph (ii), the Required Effective Date contemplated by the
immediately preceding subparagraph (i) and (R) with respect to an Additional
Registration Statement, the earlier of (I) five (5) days after notice by the SEC
that it may be declared effective or (II) thirty (30) days after the Increased
Registered Shares Date.

        (b) PAYMENTS BY THE COMPANY.


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           (i) If the Registration Statement covering the Registrable Securities
is not filed in proper form with the SEC by the Required Filing Date, the
Company will make payment to the Initial Investor in such amounts and at such
times as shall be determined pursuant to this Section 2(b).

           (ii) If the Registration Statement covering the Registrable
Securities is not effective by thirty (30) days after the relevant Required
Effective Date, or if the Investor is restricted from making sales of
Registrable Securities covered by a previously effective Registration Statement
at any time (the date such restriction commences, a _Restricted Sale Date_)
after the Effective Date other than during a Suspension Period (as defined
below), then the Company will make payments to the Initial Investor in such
amounts and at such times as shall be determined pursuant to this Section 2(b).

           (iii) The amount (the "Periodic Amount") to be paid by the Company to
the Initial Investor shall be determined as of each Computation Date (as defined
below) and such amount shall be equal to the Periodic Amount Percentage (as
defined below) of the Purchase Price for all Preferred Stock for the period from
the date following the relevant Required Filing Date, Required Effective Date or
Restricted Sale Date, as the case may be, to the first relevant Computation
Date, and thereafter to each subsequent Computation Date. The _Periodic Amount
Percentage_ means (A) two percent (2%) of the Purchase Price for all the
Preferred Stock previously purchased for the period from the date following the
relevant Required Filing Date, Required Effective Date or Restricted Sale Date,
as the case may be, to the first relevant Computation Date (prorated on a daily
basis if such period is less than thirty [30] days), and (B) two percent (2%) of
the Purchase Price of all Preferred Stock to each Computation Date thereafter
(prorated on a daily basis if such period is less than thirty [30] days).
Anything in the preceding provisions of this paragraph (iii) to the contrary
notwithstanding, after the Effective Date the Purchase Price shall be deemed to
refer to the sum of (X) the principal amount of all Preferred Stock previously
purchased but not yet converted and (Y) the Held Shares Value (as defined
below). The _Held Shares Value_ means, for shares acquired by the Investor upon
a conversion within the thirty (30) days preceding the Restricted Sale Date, but
not yet sold by the Investor, the principal amount of the Preferred Stock
converted into such Conversion Shares; provided, however, that if the Investor
effected more than one conversion during such thirty (30) day period and sold
less than all of such shares, the sold shares shall be deemed to be derived
first from the conversions in the sequence of such conversions (that is, for
example, until the number of shares from the first of such conversions have been
sold, all shares shall be deemed to be from the first conversion; thereafter,
from the second conversion until all such shares are sold). By way of
illustration and not in limitation of the foregoing, if the Registration
Statement for the Registrable Securities relating to the Preferred Stock and
Warrants issued on the Initial Closing Date is timely filed but is not declared
effective until one hundred sixty-five (165) days after the Initial Closing
Date, the Periodic Amount will aggregate four percent (4%) of the Purchase Price
of the Initial Preferred Stock (2% for days 120-150, plus 2% for days 151-165),
provided, however, that no Periodic Amount shall be due if the Registration
Statement is effective within thirty (30) days from the Required Effective Date.


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           (iv) Each Periodic Amount will be payable by the Company in cash or
other immediately available funds to the Investor monthly, without requiring
demand therefor by the Investor.

           (v) The parties acknowledge that the damages which may be incurred by
the Investor if the Registration Statement is not filed by the Required Filing
Date or if the Registration Statement has not been declared effective by a
Required Effective Date, including if the right to sell Registrable Securities
under a previously effective Registration Statement is suspended, may be
difficult to ascertain. The parties agree that the Periodic Amounts represent a
reasonable estimate on the part of the parties, as of the date of this
Agreement, of the amount of such damages.

           (vi) Notwithstanding the foregoing, the amounts payable by the
Company pursuant to this provision shall not be payable to the extent any delay
in the effectiveness of the Registration Statement occurs because of an act of,
or a failure to act or to act timely by the Initial Investor or its counsel, or
in the event all of the Registrable Securities may be sold pursuant to Rule 144
or another available exemption under the Act.

           (vii) "Computation Date" means (A) the date which is the earlier of
(1) thirty (30) days after the Required Filing Date, any relevant Required
Effective Date or a Restricted Sale Date, as the case may be, or (2) the date
after the Required Filing Date, such Required Effective Date or Restricted Sale
Date on which the Registration Statement is filed (with respect to payments due
as contemplated by Section 2(b)(i) hereof) or is declared effective or has its
restrictions removed (with respect to payments due as contemplated by Section
2(b)(ii) hereof), as the case may be, and (B) each date which is the earlier of
(1) thirty (30) days after the previous Computation Date or (2) the date after
the previous Computation Date on which the Registration Statement is filed (with
respect to payments due as contemplated by Section 2(b)(i) hereof) or is
declared effective or has its restrictions removed (with respect to payments due
as contemplated by Section 2(b)(ii) hereof), as the case may be.

        3. OBLIGATIONS OF THE COMPANY. In connection with the registration of
the Registrable Securities, the Company shall do each of the following.

         (a) Prepare promptly, and file with the SEC by the Required Filing Date
a Registration Statement with respect to not less than the number of Registrable
Securities provided in Section 2(a) above, and thereafter use its reasonable
best efforts to cause such Registration Statement relating to Registrable
Securities to become effective by the Required Effective Date and keep the
Registration Statement effective at all times during the period (the
"Registration Period") continuing until the earliest of (i) the date that is two
(2) years after the last day of the calendar month following the month in which
the closing of the last tranche of Preferred Stock occurs, (ii) the date when
the Investors may sell all Registrable Securities under Rule 144 or (iii) the
date the Investors no longer own any of the Registrable Securities, which
Registration Statement (including any amendments or supplements thereto and
prospectuses contained therein) shall not contain any untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances in which
they were made, not misleading;


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         (b) Prepare and file with the SEC such amendments (including
post-effective amendments) and supplements to the Registration Statement and the
prospectus used in connection with the Registration Statement as may be
necessary to keep the Registration Statement effective at all times during the
Registration Period, and, during the Registration Period, comply with the
provisions of the Securities Act with respect to the disposition of all
Registrable Securities of the Company covered by the Registration Statement
until such time as all of such Registrable Securities have been disposed of in
accordance with the intended methods of disposition by the seller or sellers
thereof as set forth in the Registration Statement;

         (c) The Company shall permit a single firm of counsel designated by the
Initial Investors to review the Registration Statement and all amendments and
supplements thereto a reasonable period of time (but not less than three (3)
business days) prior to their filing with the SEC, and not file any document in
a form to which such counsel reasonably objects.

         (d) Notify each Investor, such Investor_s legal counsel identified to
the Company (which, until further notice, shall be deemed to be Krieger &
Prager, ATTN: Samuel Krieger, Esq.; each, an _Investor_s Counsel_), and any
managing underwriters immediately (and, in the case of (i)(A) below, not less
than five (5) days prior to such filing) and (if requested by any such Person)
confirm such notice in writing no later than one (1) business day following the
day (i)(A) when a Prospectus or any Prospectus supplement or post-effective
amendment to the Registration Statement is proposed to be filed; (B) whenever
the SEC notifies the Company whether there will be a _review_ of such
Registration Statement; (C) whenever the Company receives (or a representative
of the Company receives on its behalf) any oral or written comments from the SEC
respect of a Registration Statement (copies or, in the case of oral comments,
summaries of such comments shall be promptly furnished by the Company to the
Investors); and (D) with respect to the Registration Statement or any
post-effective amendment, when the same has become effective; (ii) of any
request by the SEC or any other Federal or state governmental authority for
amendments or supplements to the Registration Statement or Prospectus or for
additional information; (iii) of the issuance by the SEC of any stop order
suspending the effectiveness of the Registration Statement covering any or all
of the Registrable Securities or the initiation of any Proceedings for that
purpose; (iv) if at any time any of the representations or warranties of the
Company contained in any agreement (including any underwriting agreement)
contemplated hereby ceases to be true and correct in all material respects; (v)
of the receipt by the Company of any notification with respect to the suspension
of the qualification or exemption from qualification of any of the Registrable
Securities for sale in any jurisdiction, or the initiation or threatening of any
Proceeding for such purpose; and (vi) of the occurrence of any event that to the
best knowledge of the Company makes any statement made in the Registration
Statement or Prospectus or any document incorporated or deemed to be
incorporated therein by reference untrue in any material respect or that
requires any revisions to the Registration Statement, Prospectus or other
documents so that, in the case of the Registration Statement or the Prospectus,
as the case may be, it will not contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading. In addition, the Company shall furnish the Investors with
copies of all intended written responses to the comments contemplated in clause
(C) of this Section 3(d) not later than


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one (1) business day in advance of the filing of such responses with the SEC so
that the Investors shall have the opportunity to comment thereon.

         (e) Furnish to each Investor and such Investors Counsel (i) promptly
after the same is prepared and publicly distributed, filed with the SEC, or
received by the Company, one (1) copy of the Registration Statement, each
preliminary prospectus and prospectus, and each amendment or supplement thereto,
and (ii) such number of copies of a prospectus, and all amendments and
supplements thereto and such other documents, as such Investor may reasonably
request in order to facilitate the disposition of the Registrable Securities
owned by such Investor;

         (f) As promptly as practicable after becoming aware thereof, notify
each Investor of the happening of any event of which the Company has knowledge,
as a result of which the prospectus included in the Registration Statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading, and use its best efforts promptly to prepare a supplement or
amendment to the Registration Statement or other appropriate filing with the SEC
to correct such untrue statement or omission, and deliver a number of copies of
such supplement or amendment to each Investor as such Investor may reasonably
request;

         (g) As promptly as practicable after becoming aware thereof, notify
each Investor who holds Registrable Securities being sold (or, in the event of
an underwritten offering, the managing underwriters) of the issuance by the SEC
of a Notice of Effectiveness or any notice of effectiveness or any stop order or
other suspension of the effectiveness of the Registration Statement at the
earliest possible time;

         (h) Notwithstanding the foregoing, if at any time or from time to time
after the date of effectiveness of the Registration Statement, the Company
notifies the Investors in writing of the existence of a Potential Material
Event, the Investors shall not offer or sell any Registrable Securities, or
engage in any other transaction involving or relating to the Registrable
Securities, from the time of the giving of notice with respect to a Potential
Material Event until such Investor receives written notice from the Company that
such Potential Material Event either has been disclosed to the public or no
longer constitutes a Potential Material Event; provided, however, that the
Company may not so suspend the right to such holders of Registrable Securities
for more than two twenty (20) day periods in the aggregate during any 12-month
period (_Suspension Period_) with at least a ten (10) business day interval
between such periods, during the periods the Registration Statement is required
to be in effect;

         (i) Use its reasonable efforts to secure and maintain the designation
of all the Registrable Securities covered by the Registration Statement on the
"OTC Bulletin Board Market" of the National Association of Securities Dealers
Automated Quotations System ("NASDAQ") within the meaning of Rule 11Aa2-1 of the
SEC under the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
and the quotation of the Registrable Securities on The NASDAQ Bulletin Board
Market; and, without limiting the generality of the foregoing,


<PAGE>   8

to arrange for at least two market makers to register with the National
Association of Securities Dealers, Inc. ("NASD") as such with respect to such
Registrable Securities;

         (j) Provide a transfer agent , which may be a single entity, for the
Registrable Securities not later than the effective date of the Registration
Statement;

         (k) Cooperate with the Investors to facilitate the timely preparation
and delivery of certificates for the Registrable Securities to be offered
pursuant to the Registration Statement and enable such certificates for the
Registrable Securities to be in such denominations or amounts as the case may
be, as the Investors may reasonably request, and, within three (3) business days
after a Registration Statement which includes Registrable Securities is ordered
effective by the SEC, the Company shall deliver, and shall cause legal counsel
selected by the Company to deliver, to the transfer agent for the Registrable
Securities (with copies to the Investors whose Registrable Securities are
included in such Registration Statement) an appropriate instruction and opinion
of such counsel; and

         (l) Take all other reasonable actions necessary to expedite and
facilitate disposition by the Investor of the Registrable Securities pursuant to
the Registration Statement.

         4. OBLIGATIONS OF THE INVESTORS. In connection with the registration of
the Registrable Securities, the Investors shall have the following obligations:

         (a) It shall be a condition precedent to the obligations of the Company
to complete the registration pursuant to this Agreement with respect to the
Registrable Securities of a particular Investor that such Investor shall furnish
to the Company such information regarding itself, the Registrable Securities
held by it, and the intended method of disposition of the Registrable Securities
held by it, as shall be reasonably required to effect the registration of such
Registrable Securities and shall execute such documents in connection with such
registration as the Company may reasonably request. At least ten (10) days prior
to the first anticipated filing date of the Registration Statement, the Company
shall notify each Investor of the information the Company requires from each
such Investor (the "Requested Information") if such Investor elects to have any
of such Investor's Registrable Securities included in the Registration
Statement. If at least two (2) business days prior to the filing date the
Company has not received the Requested Information from an Investor (a
"Non-Responsive Investor"), then the Company may file the Registration Statement
without including Registrable Securities of such Non-Responsive Investor;

         (b) Each Investor, by such Investor's acceptance of the Registrable
Securities, agrees to cooperate with the Company as reasonably requested by the
Company in connection with the preparation and filing of the Registration
Statement hereunder, unless such Investor has notified the Company in writing of
such Investor's election to exclude all of such Investor's Registrable
Securities from the Registration Statement; and

         (c) Each Investor agrees that, upon receipt of any notice from the
Company of the happening of any event of the kind described in Section 3(e) or
3(f), above, such Investor will immediately discontinue disposition of
Registrable Securities pursuant to the Registration


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Statement covering such Registrable Securities until such Investor's receipt of
the copies of the supplemented or amended prospectus contemplated by Section
3(e) or 3(f) and, if so directed by the Company, such Investor shall deliver to
the Company (at the expense of the Company) or destroy (and deliver to the
Company a certificate of destruction) all copies in such Investor's possession,
of the prospectus covering such Registrable Securities current at the time of
receipt of such notice.

         5. EXPENSES OF REGISTRATION. (a) All reasonable expenses (other than
underwriting discounts and commissions of the Investor) incurred in connection
with registrations, filings or qualifications pursuant to Section 3, but
including, without limitation, all registration, listing, and qualifications
fees, printers and accounting fees, the fees and disbursements of counsel for
the Company and a fee for a single counsel for the Investors (as a group and not
individually) not exceeding $3,500 for the Registration Statement covering the
Registrable Securities applicable to the Preferred Stock and Warrants issued on
the Closing Date shall be borne by the Company.

         (b) The Buyer acknowledges that the Company either intends to issue
shares or has already issued shares as of the date of this agreement pursuant to
(i) its advisory agreement with Grayson & Associates; (ii) its warrant
agreements with Corporate Financial Enterprises, Inc. ("CFE") and Vantage
Capital, Inc. ("VCI") and the defined term should be "Registrable CFE/VCI
Shares"; (iii) the issuance of Series A 12% Preferred Stock to VCI and Series B
12% Preferred Stock to CFE and an affiliated entity known as American Equities,
LLC (the "Other Registrable Shares"),each of which has certain registration
rights.

         (c) [INTENTIONALLY OMITTED]

         (c) Neither the Company nor any of its subsidiaries has, as of the date
hereof, nor shall the Company nor any of its subsidiaries, on or after the date
of this Agreement, enter into any agreement with respect to its securities that
is inconsistent with the rights granted to the Investors in this Agreement or
otherwise conflicts with the provisions hereof.. Neither the Company nor any of
its subsidiaries has previously entered into any agreement granting any
registration rights with respect to any of its securities to any Person. Except
as otherwise provided for in this Section 5, and without limiting the generality
of the foregoing, without the written consent of the Investors holding a
majority of the Series D 6% Convertible Preferred Stock,, the Company shall not
grant to any person the right to request the Company to register any securities
of the Company under the Securities Act unless the rights so granted are subject
in all respects to the prior rights in full of the Investors set forth herein,
and are not otherwise in conflict or inconsistent with the provisions of this
Agreement and the other Transaction Agreements.

         6. INDEMNIFICATION. In the event any Registrable Securities are
included in a Registration Statement under this Agreement:

         (a) To the extent permitted by law, the Company will indemnify and hold
harmless each Investor who holds such Registrable Securities, the directors, if
any, of such Investor, the officers, if any, of such Investor, each person, if
any, who controls any Investor


<PAGE>   10

within the meaning of the Securities Act or the Exchange Act (each, an
"Indemnified Person" or _Indemnified Party_), against any losses, claims,
damages, liabilities or expenses (joint or several) incurred (collectively,
"Claims") to which any of them may become subject under the Securities Act, the
Exchange Act or otherwise, insofar as such Claims (or actions or proceedings,
whether commenced or threatened, in respect thereof) arise out of or are based
upon any of the following statements, omissions or violations in the
Registration Statement, or any post-effective amendment thereof, or any
prospectus included therein: (i) any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement or any
post-effective amendment thereof or 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, (ii) any untrue statement or alleged untrue
statement of a material fact contained in the final prospectus (as amended or
supplemented, if the Company files any amendment thereof or supplement thereto
with the SEC) or the omission or alleged omission to state therein any material
fact necessary to make the statements made therein, in light of the
circumstances under which the statements therein were made, not misleading or
(iii) any violation or alleged violation by the Company of the Securities Act,
the Exchange Act, any state securities law or any rule or regulation under the
Securities Act, the Exchange Act or any state securities law (the matters in the
foregoing clauses (i) through (iii) being, collectively, "Violations"). Subject
to clause (b) of this Section 6, the Company shall reimburse the Investors,
promptly as such expenses are incurred and are due and payable, for any legal
fees or other reasonable expenses incurred by them in connection with
investigating or defending any such Claim. Notwithstanding anything to the
contrary contained herein, the indemnification agreement contained in this
Section 6(a) shall not (I) apply to a Claim arising out of or based upon a
Violation which occurs in reliance upon and in conformity with information
furnished in writing to the Company by or on behalf of any Indemnified Person
expressly for use in connection with the preparation of the Registration
Statement or any such amendment thereof or supplement thereto, if such
prospectus was timely made available by the Company pursuant to Section 3(c)
hereof; (II) be available to the extent such Claim is based on a failure of the
Investor to deliver or cause to be delivered the prospectus made available by
the Company; or (III) apply to amounts paid in settlement of any Claim if such
settlement is effected without the prior written consent of the Company, which
consent shall not be unreasonably withheld. Each Investor will indemnify the
Company and its officers, directors and agents (each, an "Indemnified Person" or
_Indemnified Party_) against any claims arising out of or based upon a Violation
which occurs in reliance upon and in conformity with information furnished in
writing to the Company, by or on behalf of such Investor, expressly for use in
connection with the preparation of the Registration Statement, subject to such
limitations and conditions as are applicable to the Indemnification provided by
the Company to this Section 6. Such indemnity shall remain in full force and
effect regardless of any investigation made by or on behalf of the Indemnified
Person and shall survive the transfer of the Registrable Securities by the
Investors pursuant to Section 9.

         (b) Promptly after receipt by an Indemnified Person or Indemnified
Party under this Section 6 of notice of the commencement of any action
(including any governmental action), such Indemnified Person or Indemnified
Party shall, if a Claim in respect thereof is to be made against any
indemnifying party under this Section 6, 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


<PAGE>   11

indemnifying party similarly noticed, to assume control of the defense thereof
with counsel mutually satisfactory to the indemnifying party and the Indemnified
Person or the Indemnified Party, as the case may be. In case any such action is
brought against any Indemnified Person or Indemnified Party, and it notifies the
indemnifying party of the commencement thereof, the indemnifying party will be
entitled to participate in, and, to the extent that it may wish, jointly with
any other indemnifying party similarly notified, assume the defense thereof,
subject to the provisions herein stated and after notice from the indemnifying
party to such Indemnified Person or Indemnified Party of its election so to
assume the defense thereof, the indemnifying party will not be liable to such
Indemnified Person or Indemnified Party under this Section 6 for any legal or
other reasonable out-of-pocket expenses subsequently incurred by such
Indemnified Person or Indemnified Party in connection with the defense thereof
other than reasonable costs of investigation, unless the indemnifying party
shall not pursue the action of its final conclusion. The Indemnified Person or
Indemnified Party shall have the right to employ separate counsel in any such
action and to participate in the defense thereof, but the fees and reasonable
out-of-pocket expenses of such counsel shall not be at the expense of the
indemnifying party if the indemnifying party has assumed the defense of the
action with counsel reasonably satisfactory to the Indemnified Person or
Indemnified Party. The failure to deliver written notice to the indemnifying
party within a reasonable time of the commencement of any such action shall not
relieve such indemnifying party of any liability to the Indemnified Person or
Indemnified Party under this Section 6, except to the extent that the
indemnifying party is prejudiced in its ability to defend such action. The
indemnification required by this Section 6 shall be made by periodic payments of
the amount thereof during the course of the investigation or defense, as such
expense, loss, damage or liability is incurred and is due and payable.

         7. CONTRIBUTION. To the extent any indemnification by an indemnifying
party is prohibited or limited by law, the indemnifying party agrees to make the
maximum contribution with respect to any amounts for which it would otherwise be
liable under Section 6 to the fullest extent permitted by law; provided,
however, that (a) no contribution shall be made under circumstances where the
maker would not have been liable for indemnification under the fault standards
set forth in Section 6; (b) no seller of Registrable Securities guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any seller of Registrable
Securities who was not guilty of such fraudulent misrepresentation; and (c)
contribution by any seller of Registrable Securities shall be limited in amount
to the net amount of proceeds received by such seller from the sale of such
Registrable Securities.

         8. REPORTS UNDER EXCHANGE ACT. With a view to making available to the
Investors the benefits of Rule 144 promulgated under the Securities Act or any
other similar rule or regulation of the SEC that may at any time permit the
Investors to sell securities of the Company to the public without registration
("Rule 144"), the Company agrees to:

         (a) make and keep public information available, as those terms are
understood and defined in Rule 144;

         (b) file with the SEC in a timely manner all reports and other
documents required of the Company under the Securities Act and the Exchange Act;
and


<PAGE>   12

         (c) furnish to each Investor so long as such Investor owns Registrable
Securities, promptly upon request, (i) a written statement by the Company that
it has complied with the reporting requirements of Rule 144, the Securities Act
and the Exchange Act, (ii) a copy of the most recent annual or quarterly report
of the Company and such other reports and documents so filed by the Company and
(iii) such other information as may be reasonably requested to permit the
Investors to sell such securities pursuant to Rule 144 without registration.

         9. ASSIGNMENT OF THE REGISTRATION RIGHTS. The rights to have the
Company register Registrable Securities pursuant to this Agreement shall be
automatically assigned by the Investors to any transferee of the Registrable
Securities (or all or any portion of any unconverted Preferred Stock or
unexercised Warrant) only if: (a) the Investor agrees in writing with the
transferee or assignee to assign such rights, and a copy of such agreement is
furnished to the Company within a reasonable time after such assignment, (b) the
Company is, within a reasonable time after such transfer or assignment,
furnished with written notice of (i) the name and address of such transferee or
assignee and (ii) the securities with respect to which such registration rights
are being transferred or assigned, (c) immediately following such transfer or
assignment the further disposition of such securities by the transferee or
assignee is restricted under the Securities Act and applicable state securities
laws, and (d) at or before the time the Company received the written notice
contemplated by clause (b) of this sentence the transferee or assignee agrees in
writing with the Company to be bound by all of the provisions contained herein.
In the event of any delay in filing or effectiveness of the Registration
Statement as a result of such assignment, the Company shall not be liable for
any damages arising from such delay, or the payments set forth in Section 2(c)
hereof arising from such delay.

         10. AMENDMENT OF REGISTRATION RIGHTS. Any provision of this Agreement
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 Investors who hold an eighty (80%) percent
interest of the Registrable Securities. Any amendment or waiver effected in
accordance with this Section 10 shall be binding upon each Investor and the
Company.

         11. RULE 144 REQUIREMENTS. The Company shall make publicly available
and available to the Holder of Registrable Securities, pursuant to Rule 144 of
the Commission under the Securities Act, such information as shall be necessary
to enable the Holders of Registrable Securities to make sales of Registrable
Securities pursuant to that Rule. The Company will furnish to any Holder of
Registrable Securities, upon request made by such Holder at any time, a written
statement signed by the Company, addressed to such Holder, describing briefly
the action the Company has taken or proposes to take to comply with the current
public information requirements of Rule 144. The Company will, at the request of
any Holder of Registrable Securities, upon receipt from such Holder of a
certificate certifying (i) that such Holder has held such Registrable Securities
for a period of not less than one (1) year, (ii) that such Holder has not been
an affiliate (as defined in Rule 144) of the Company for more than the ninety
(90) preceding days, and (iii) as to such other matters as may be appropriate in
accordance with such Rule, remove from the stock certificates representing such
Registrable Securities that portion of


<PAGE>   13

any restrictive legend which relates to the registration provisions of the
Securities Act, provided, however, counsel to Holder may provide such
instructions and opinion to the transfer agent regarding the removal of the
restrictive legend.

         12. MISCELLANEOUS.

         (a) A person or entity is deemed to be a holder of Registrable
Securities whenever such person or entity owns of record such Registrable
Securities. If the Company receives conflicting instructions, notices or
elections from two or more persons or entities with respect to the same
Registrable Securities, the Company shall act upon the basis of instructions,
notice or election received from the registered owner of such Registrable
Securities.

         (b) Notices required or permitted to be given hereunder shall be given
in the manner contemplated by the Agreement, (i) if to the Company or to the
Initial Investor, to their respective address contemplated by the Agreement, and
(iii) if to any other Investor, at such address as such Investor shall have
provided in writing to the Company, or at such other address as each such party
furnishes by notice given in accordance with this Section 11(b).

         (c) Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

         (d) This Agreement shall be governed by and interpreted in accordance
with the laws of the State of California for contracts to be wholly performed in
such state and without giving effect to the principles thereof regarding the
conflict of laws. Each of the parties consents to the jurisdiction of the
federal courts whose districts encompass any part of the City of Los Angeles or
the state courts of the State of California sitting in the City of Los Angeles
in connection with any dispute arising under this Agreement and hereby waives,
to the maximum extent permitted by law, any objection, including any objection
based on forum non coveniens, to the bringing of any such proceeding in such
jurisdictions. To the extent determined by such court, the Company shall
reimburse the Buyer for any reasonable legal fees and disbursements incurred by
the Buyer in enforcement of or protection of any of its rights under this
Agreement.

         (e) If any provision of this Agreement shall be invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect the validity or enforceability of the remainder of this Agreement or the
validity or enforceability of this Agreement in any other jurisdiction.

         (f) Subject to the requirements of Section 9 hereof, this Agreement
shall inure to the benefit of and be binding upon the successors and assigns of
each of the parties hereto.

         (g) All pronouns and any variations thereof refer to the masculine,
feminine or neuter, singular or plural, as the context may require.

         (h) The headings in this Agreement are for convenience of reference
only and shall not limit or otherwise affect the meaning thereof.


<PAGE>   14

         (i) This Agreement may be executed in one or more counterparts, each of
which shall be deemed an original but all of which shall constitute one and the
same agreement. This Agreement, once executed by a party, may be delivered to
the other party hereto by telephone line facsimile transmission of a copy of
this Agreement bearing the signature of the party so delivering this Agreement.

         (j) The Company acknowledges that any failure by the Company to perform
its obligations under Section 3(a) hereof, or any delay in such performance
could result in loss to the Investors, and the Company agrees that, in addition
to any other liability the Company may have by reason of such failure or delay,
the Company shall be liable for all direct damages caused by any such failure or
delay, unless the same is the result of force majeure. Neither party shall be
liable for consequential damages.

         (k) This Agreement constitutes the entire agreement among the parties
hereto with respect to the subject matter hereof. There are no restrictions,
promises, warranties or undertakings, other than those set forth or referred to
herein. This Agreement supersedes all prior agreements and understandings among
the parties hereto with respect to the subject matter hereof. This Agreement may
be amended only by an instrument in writing signed by the party to be charged
with enforcement thereof.

         [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


         IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed by their respective officers thereunto duly authorized as of the day
and year first above written.



                                   COMPANY:
                                   ESAT, INC.



                                   By:
                                   Name:   Michael C. Palmer
                                   Title:  Chief Executive Officer & Secretary


                                   WENTWORTH,  LLC



                                   By:
                                   Name:
                                   Title: