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                                                                     EXHIBIT 4.2

                          REGISTRATION RIGHTS AGREEMENT


                  This Registration Rights Agreement (this "AGREEMENT") is made
and entered into as of April 16, 2004, by and among US Dataworks, Inc., a Nevada
corporation (the "COMPANY"), and the purchasers signatory hereto (each such
purchaser, a "PURCHASER" and collectively, the "PURCHASERS").

                  This Agreement is made pursuant to the Securities Purchase
Agreement, dated as of the date hereof among the Company and the Purchasers (the
"PURCHASE AGREEMENT").

                  The Company and the Purchasers hereby agree as follows:

         1. DEFINITIONS. Capitalized terms used and not otherwise defined herein
that are defined in the Purchase Agreement shall have the meanings given such
terms in the Purchase Agreement. As used in this Agreement, the following terms
shall have the following meanings:

                  "ADVICE" shall have the meaning set forth in Section 6(d).

                  "EFFECTIVENESS DATE" means, with respect to the Registration
         Statement required to be filed hereunder and subject to extension as to
         a Holder pursuant to Section 3(k), the earlier of (a) the 90th calendar
         day following the Closing Date, and (b) the fifth Trading Day following
         the date on which the Company is notified by the Commission that the
         Registration Statement will not be reviewed or is no longer subject to
         further review and comments.

                  "EFFECTIVENESS PERIOD" shall have the meaning set forth in
         Section 2(a).

                  "EVENT" shall have the meaning set forth in Section 2(b).

                  "EVENT DATE" shall have the meaning set forth in Section 2(b).

                  "FILING DATE" means, with respect to the Registration
         Statement required to be filed hereunder and subject to extension as to
         a Holder pursuant to Section 3(k), the 30th calendar day following the
         Closing Date.

                  "HOLDER" or "HOLDERS" means the holder or holders, as the case
         may be, from time to time of Registrable Securities.

                  "INDEMNIFIED PARTY" shall have the meaning set forth in
         Section 5(c).

                  "INDEMNIFYING PARTY" shall have the meaning set forth in
         Section 5(c).

                  "LOSSES" shall have the meaning set forth in Section 5(a).

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                  "PROCEEDING" means an action, claim, suit, investigation or
         proceeding (including, without limitation, an investigation or partial
         proceeding, such as a deposition), whether commenced or threatened.

                  "PROSPECTUS" means the prospectus included in the Registration
         Statement (including, without limitation, a prospectus that includes
         any information previously omitted from a prospectus filed as part of
         an effective registration statement in reliance upon Rule 430A
         promulgated under the Securities Act), as amended or supplemented by
         any prospectus supplement, with respect to the terms of the offering of
         any portion of the Registrable Securities covered by the Registration
         Statement, and all other amendments and supplements to the Prospectus,
         including post-effective amendments, and all material incorporated by
         reference or deemed to be incorporated by reference in such Prospectus.

                  "REGISTRABLE SECURITIES" means all of the Shares and the
         Warrant Shares, together with any shares of Common Stock issued or
         issuable upon any stock split, dividend or other distribution,
         recapitalization or similar event with respect to the foregoing.

                  "REGISTRATION STATEMENT" means the registration statements
         required to be filed hereunder, including (in each case) the
         Prospectus, amendments and supplements to the registration statement or
         Prospectus, including pre- and post-effective amendments, all exhibits
         thereto, and all material incorporated by reference or deemed to be
         incorporated by reference in the registration statement.

                  "RULE 415" means Rule 415 promulgated by the Commission
         pursuant to the Securities Act, as such Rule may be amended from time
         to time, or any similar rule or regulation hereafter adopted by the
         Commission having substantially the same purpose and effect as such
         Rule.

                  "RULE 424" means Rule 424 promulgated by the Commission
         pursuant to the Securities Act, as such Rule may be amended from time
         to time, or any similar rule or regulation hereafter adopted by the
         Commission having substantially the same purpose and effect as such
         Rule.

         2. REGISTRATION.

                  (a) On or prior to the Filing Date, the Company shall prepare
         and file with the Commission the Registration Statement covering the
         resale of all of the Registrable Securities for an offering to be made
         on a continuous basis pursuant to Rule 415. The Registration Statement
         required hereunder shall be on Form S-3 (except if the Company is not
         then eligible to register for resale the Registrable Securities on Form
         S-3, in which case the Registration shall be on another appropriate
         form in accordance herewith). The Registration Statement required
         hereunder shall contain (except if otherwise directed by the Holders)
         substantially the "PLAN OF DISTRIBUTION" attached hereto as ANNEX A.
         Subject to the terms of this Agreement, the Company shall use its best
         efforts to cause the Registration Statement to be declared effective
         under the Securities Act as promptly as possible after the filing
         thereof, but in any event not later than the Effectiveness Date, and
         shall use its best efforts to keep the Registration Statement
         continuously effective under

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         the Securities Act until the date when all Registrable Securities
         covered by the Registration Statement have been sold or may be sold
         without volume restrictions pursuant to Rule 144(k) as determined by
         the counsel to the Company pursuant to a written opinion letter to such
         effect, addressed and acceptable to the Company's transfer agent and
         the affected Holders (the "EFFECTIVENESS PERIOD").

                  (b) If: (i) a Registration Statement is not filed on or prior
         to the Filing Date (if the Company files a Registration Statement
         without affording the Holder the opportunity to review and comment on
         the same as required by Section 3(a), the Company shall not be deemed
         to have satisfied this clause (i)), or (ii) the Company fails to file
         with the Commission a request for acceleration in accordance with Rule
         461 promulgated under the Securities Act, within five Trading Days of
         the date that the Company is notified (orally or in writing, whichever
         is earlier) by the Commission that a Registration Statement will not be
         "reviewed," or is not subject to further review, or (iii) prior to the
         date when such Registration Statement is first declared effective by
         the Commission, the Company fails to file a pre-effective amendment and
         otherwise respond in writing to comments made by the Commission in
         respect of such Registration Statement within 10 calendar days after
         the receipt of comments by or notice from the Commission that such
         amendment is required in order for a Registration Statement to be
         declared effective, or (iv) a Registration Statement filed or required
         to be filed hereunder is not declared effective by the Commission on or
         before the Effectiveness Date, or (v) after a Registration Statement is
         first declared effective by the Commission, it ceases for any reason to
         remain continuously effective as to all Registrable Securities for
         which it is required to be effective, or the Holders are not permitted
         to utilize the Prospectus therein to resell such Registrable
         Securities, for in any such case 10 calendar consecutive Trading Days
         but no more than an aggregate of 15 Trading Days during any 12 month
         period (which need not be consecutive Trading Days)(any such failure or
         breach being referred to as an "EVENT," and for purposes of clause (i)
         or (iv) the date on which such Event occurs, or for purposes of clause
         (ii) the date on which such five Trading Day period is exceeded, or for
         purposes of clause (iii) the date which such 10 calendar days is
         exceeded, or for purposes of clause (v) the date on which such 10 or 15
         Trading Day period, as applicable, is exceeded being referred to as
         "EVENT DATE"), then in addition to any other rights the Holders may
         have hereunder or under applicable law: (x) on each such Event Date the
         Company shall pay to each Holder an amount in cash, as partial
         liquidated damages and not as a penalty, equal to 2.0% of the aggregate
         purchase price paid by such Holder pursuant to the Purchase Agreement
         for any Registrable Securities then held by such Holder; and (y) on
         each monthly anniversary of each such Event Date (if the applicable
         Event shall not have been cured by such date) until the applicable
         Event is cured, the Company shall pay to each Holder an amount in cash,
         as partial liquidated damages and not as a penalty, equal to 2.0% of
         the aggregate purchase price paid by such Holder pursuant to the
         Purchase Agreement for any Registrable Securities then held by such
         Holder. If the Company fails to pay any partial liquidated damages
         pursuant to this Section in full within seven days after the date
         payable, the Company will pay interest thereon at a rate of 18% per
         annum (or such lesser maximum amount that is permitted to be paid by
         applicable law) to the Holder, accruing daily from the date such
         partial liquidated damages are due until such amounts, plus all such
         interest thereon, are paid in full. The partial liquidated damages
         pursuant to the terms hereof shall apply on a daily

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         pro-rata basis for any portion of a month prior to the cure of an
         Event. In no event, however, shall the aggregate of liquidated damages
         and interest accrued thereon exceed twenty-two percent (22%) of the
         aggregate purchase price paid by such Holder pursuant to the Purchase
         Agreement for any Registrable Securities then held by such Holder.

         3. REGISTRATION PROCEDURES

                  In connection with the Company's registration obligations
hereunder, the Company shall:

                  (a) Not less than five Trading Days prior to the filing of the
         Registration Statement or any related Prospectus or any amendment or
         supplement thereto, the Company shall, (i) furnish to the Holders
         copies of all such documents proposed to be filed (including documents
         incorporated or deemed incorporated by reference to the extent
         requested by such Person) which documents will be subject to the review
         of such Holders, and (ii) cause its officers and directors, counsel and
         independent certified public accountants to respond to such inquiries
         as shall be necessary, in the reasonable opinion of respective counsel
         to conduct a reasonable investigation within the meaning of the
         Securities Act. The Company shall not file the Registration Statement
         or any such Prospectus or any amendments or supplements thereto to
         which the Holders of a majority of the Registrable Securities shall
         reasonably object in good faith, provided that the Company is notified
         of such objection in writing no later than 5 Trading Days after the
         Holders have been so furnished copies of such documents.

                  (b) (i) Prepare and file with the Commission such amendments,
         including post-effective amendments, to the Registration Statement and
         the Prospectus used in connection therewith as may be necessary to keep
         the Registration Statement continuously effective as to the applicable
         Registrable Securities for the Effectiveness Period and prepare and
         file with the Commission such additional Registration Statements in
         order to register for resale under the Securities Act all of the
         Registrable Securities; (ii) cause the related Prospectus to be amended
         or supplemented by any required Prospectus supplement, and as so
         supplemented or amended to be filed pursuant to Rule 424; (iii) respond
         as promptly as reasonably possible to any comments received from the
         Commission with respect to the Registration Statement or any amendment
         thereto and, as promptly as reasonably possible, upon request, provide
         the Holders true and complete copies of all correspondence from and to
         the Commission relating to the Registration Statement; and (iv) comply
         in all material respects with the provisions of the Securities Act and
         the Exchange Act with respect to the disposition of all Registrable
         Securities covered by the Registration Statement during the applicable
         period in accordance with the intended methods of disposition by the
         Holders thereof set forth in the Registration Statement as so amended
         or in such Prospectus as so supplemented.

                  (c) Notify the Holders of Registrable Securities to be sold as
         promptly as reasonably possible and (if requested by any such Person)
         confirm such notice in writing promptly 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) when the
         Commission notifies the Company whether there will be a "review" of the

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         Registration Statement and whenever the Commission comments in writing
         on the Registration Statement (the Company shall upon request provide
         true and complete copies thereof and all written responses thereto to
         each of the Holders); and (C) with respect to the Registration
         Statement or any post-effective amendment, when the same has become
         effective; (ii) of any request by the Commission or any other Federal
         or state governmental authority during the period of effectiveness of
         the Registration Statement for amendments or supplements to the
         Registration Statement or Prospectus or for additional information;
         (iii) of the issuance by the Commission or any other federal or state
         governmental authority 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)
         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 (v)
         of the occurrence of any event or passage of time that makes the
         financial statements included in the Registration Statement ineligible
         for inclusion therein or 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.

                  (d) Use commercially reasonable efforts to avoid the issuance
         of, or, if issued, obtain the withdrawal of (i) any order suspending
         the effectiveness of the Registration Statement, or (ii) any suspension
         of the qualification (or exemption from qualification) of any of the
         Registrable Securities for sale in any jurisdiction, at the earliest
         practicable moment.

                  (e) Furnish to each Holder, without charge, at least one
         conformed copy of the Registration Statement and each amendment
         thereto, including financial statements and schedules, all documents
         incorporated or deemed to be incorporated therein by reference to the
         extent requested by such Person, and all exhibits to the extent
         requested by such Person (including those previously furnished or
         incorporated by reference) promptly after the filing of such documents
         with the Commission.

                  (f) Promptly deliver to each Holder, without charge, as many
         copies of the Prospectus or Prospectuses (including each form of
         prospectus) and each amendment or supplement thereto as such Persons
         may reasonably request in connection with resales by the Holder of
         Registrable Securities. Subject to the terms of this Agreement, the
         Company hereby consents to the use of such Prospectus and each
         amendment or supplement thereto by each of the selling Holders in
         connection with the offering and sale of the Registrable Securities
         covered by such Prospectus and any amendment or supplement thereto,
         except after the giving on any notice pursuant to Section 3(c).

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                  (g) Prior to any resale of Registrable Securities by a Holder,
         use its commercially reasonable efforts to register or qualify or
         cooperate with the selling Holders in connection with the registration
         or qualification (or exemption from the Registration or qualification)
         of such Registrable Securities for the resale by the Holder under the
         securities or Blue Sky laws of such jurisdictions within the United
         States as any Holder reasonably requests in writing, to keep each such
         Registration or qualification (or exemption therefrom) effective during
         the Effectiveness Period and to do any and all other acts or things
         reasonably necessary to enable the disposition in such jurisdictions of
         the Registrable Securities covered by the Registration Statement;
         PROVIDED, that the Company shall not be required to qualify generally
         to do business in any jurisdiction where it is not then so qualified,
         subject the Company to any material tax in any such jurisdiction where
         it is not then so subject or file a general consent to service of
         process in any such jurisdiction.

                  (h) If requested by the Holders, cooperate with the Holders to
         facilitate the timely preparation and delivery of certificates
         representing Registrable Securities to be delivered to a transferee
         pursuant to the Registration Statement, which certificates shall be
         free, to the extent permitted by the Purchase Agreement, of all
         restrictive legends, and to enable such Registrable Securities to be in
         such denominations and registered in such names as any such Holders may
         request.

                  (i) Upon the occurrence of any event contemplated by Section
         3(c)(v), as promptly as reasonably possible, prepare a supplement or
         amendment, including a post-effective amendment, to the Registration
         Statement or a supplement to the related Prospectus or any document
         incorporated or deemed to be incorporated therein by reference, and
         file any other required document so that, as thereafter delivered,
         neither the Registration Statement nor such Prospectus will contain an
         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 under which they were made, not
         misleading. If the Company notifies the Holders in accordance with
         clauses (ii) through (v) of Section 3(c) above to suspend the use of
         any Prospectus until the requisite changes to such Prospectus have been
         made, then the Holders shall suspend use of such Prospectus. The
         Company will use its best efforts to ensure that the use of the
         Prospectus may be resumed as promptly as is practicable. The Company
         shall be entitled to exercise its right under this Section 3(i) to
         suspend the availability of a Registration Statement and Prospectus,
         subject to the payment of liquidated damages pursuant to Section 2(b),
         for a period not to exceed 60 days (which need not be consecutive days)
         in any 12 month period.

                  (j) Comply with all applicable rules and regulations of the
         Commission.

                  (k) The Company may require each Holder to furnish to the
         Company a certified statement as to the number of shares of Common
         Stock beneficially owned by such Holder and, if required by the
         Commission, the person thereof that has voting and dispositive control
         over the Shares. During any periods that the Company is unable to meet
         its obligations hereunder with respect to the registration of the
         Registrable Securities solely because any Holder fails to furnish such
         information within three

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         Trading Days of the Company's request, any liquidated damages that are
         accruing at such time as to such Holder only shall be tolled and any
         Event that may otherwise occur solely because of such delay shall be
         suspended as to such Holder only, until such information is delivered
         to the Company.

         4. REGISTRATION EXPENSES. All fees and expenses incident to the
performance of or compliance with this Agreement by the Company shall be borne
by the Company whether or not any Registrable Securities are sold pursuant to
the Registration Statement. The fees and expenses referred to in the foregoing
sentence shall include, without limitation, (i) all registration and filing fees
(including, without limitation, fees and expenses (A) with respect to filings
required to be made with the Trading Market on which the Common Stock is then
listed for trading, and (B) in compliance with applicable state securities or
Blue Sky laws), (ii) printing expenses (including, without limitation, expenses
of printing certificates for Registrable Securities and of printing prospectuses
if the printing of prospectuses is reasonably requested by the holders of a
majority of the Registrable Securities included in the Registration Statement),
(iii) messenger, telephone and delivery expenses, (iv) fees and disbursements of
counsel for the Company, (v) Securities Act liability insurance, if the Company
so desires such insurance, and (vi) fees and expenses of all other Persons
retained by the Company in connection with the consummation of the transactions
contemplated by this Agreement. In addition, the Company shall be responsible
for all of its internal expenses incurred in connection with the consummation of
the transactions contemplated by this Agreement (including, without limitation,
all salaries and expenses of its officers and employees performing legal or
accounting duties), the expense of any annual audit and the fees and expenses
incurred in connection with the listing of the Registrable Securities on any
securities exchange as required hereunder. In no event shall the Company be
responsible for any broker or similar commissions or, except to the extent
provided for in the Transaction Documents, any legal fees or other costs of the
Holders.

         5. INDEMNIFICATION

                  (a) INDEMNIFICATION BY THE COMPANY. The Company shall,
         notwithstanding any termination of this Agreement, indemnify and hold
         harmless each Holder, the officers, directors, agents and employees of
         each of them, each Person who controls any such Holder (within the
         meaning of Section 15 of the Securities Act or Section 20 of the
         Exchange Act) and the officers, directors, agents and employees of each
         such controlling Person, to the fullest extent permitted by applicable
         law, from and against any and all losses, claims, damages, liabilities,
         costs (including, without limitation, reasonable attorneys' fees) and
         expenses (collectively, "LOSSES"), as incurred, arising out of or
         relating to any untrue or alleged untrue statement of a material fact
         contained in the Registration Statement, any Prospectus or any form of
         prospectus or in any amendment or supplement thereto or in any
         preliminary prospectus, or arising out of or relating to any omission
         or alleged omission of a material fact required to be stated therein or
         necessary to make the statements therein (in the case of any Prospectus
         or form of prospectus or supplement thereto, in light of the
         circumstances under which they were made) not misleading, except to the
         extent, but only to the extent, that (i) such untrue statements or
         omissions are based solely upon information regarding such Holder
         furnished in writing to the Company by such Holder expressly for use
         therein, or to the extent that such information relates to such Holder
         or such Holder's proposed method of distribution of

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         Registrable Securities and was reviewed and expressly approved in
         writing by such Holder expressly for use in the Registration Statement,
         such Prospectus or such form of Prospectus or in any amendment or
         supplement thereto (it being understood that the Holder has approved
         Annex A hereto for this purpose) or (ii) in the case of an occurrence
         of an event of the type specified in Section 3(c)(ii)-(v), the use by
         such Holder of an outdated or defective Prospectus after the Company
         has notified such Holder in writing that the Prospectus is outdated or
         defective and prior to the receipt by such Holder of the Advice
         contemplated in Section 6(d). The Company shall notify the Holders
         promptly of the institution, threat or assertion of any Proceeding of
         which the Company is aware in connection with the transactions
         contemplated by this Agreement.

                  (b) INDEMNIFICATION BY HOLDERS. Each Holder shall, severally
         and not jointly, indemnify and hold harmless the Company, its
         directors, officers, agents and employees, each Person who controls the
         Company (within the meaning of Section 15 of the Securities Act and
         Section 20 of the Exchange Act), and the directors, officers, agents or
         employees of such controlling Persons, to the fullest extent permitted
         by applicable law, from and against all Losses, as incurred, to the
         extent arising out of or based solely upon: (x) such Holder's failure
         to comply with the prospectus delivery requirements of the Securities
         Act or (y) any untrue or alleged untrue statement of a material fact
         contained in any Registration Statement, any Prospectus, or any form of
         prospectus, or in any amendment or supplement thereto or in any
         preliminary prospectus, or arising out of or relating to any omission
         or alleged omission of a material fact required to be stated therein or
         necessary to make the statements therein not misleading (i) to the
         extent, but only to the extent, that such untrue statement or omission
         is contained in any information so furnished in writing by such Holder
         to the Company specifically for inclusion in the Registration Statement
         or such Prospectus or (ii) to the extent that (1) such untrue
         statements or omissions are based solely upon information regarding
         such Holder furnished in writing to the Company by such Holder
         expressly for use therein, or to the extent that such information
         relates to such Holder or such Holder's proposed method of distribution
         of Registrable Securities and was reviewed and expressly approved in
         writing by such Holder expressly for use in the Registration Statement
         (it being understood that the Holder has approved Annex A hereto for
         this purpose), such Prospectus or such form of Prospectus or in any
         amendment or supplement thereto or (2) in the case of an occurrence of
         an event of the type specified in Section 3(c)(ii)-(v), the use by such
         Holder of an outdated or defective Prospectus after the Company has
         notified such Holder in writing that the Prospectus is outdated or
         defective and prior to the receipt by such Holder of the Advice
         contemplated in Section 6(d). In no event shall the liability of any
         selling Holder hereunder be greater in amount than the dollar amount of
         the net proceeds received by such Holder upon the sale of the
         Registrable Securities giving rise to such indemnification obligation.

                  (c) CONDUCT OF INDEMNIFICATION PROCEEDINGS. If any Proceeding
         shall be brought or asserted against any Person entitled to indemnity
         hereunder (an "INDEMNIFIED PARTY"), such Indemnified Party shall
         promptly notify the Person from whom indemnity is sought (the
         "INDEMNIFYING PARTY") in writing, and the Indemnifying Party shall have
         the right to assume the defense thereof, including the employment of
         counsel reasonably satisfactory to the Indemnified Party and the
         payment of all fees and expenses incurred in

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         connection with defense thereof; provided, that the failure of any
         Indemnified Party to give such notice shall not relieve the
         Indemnifying Party of its obligations or liabilities pursuant to this
         Agreement, except (and only) to the extent that it shall be finally
         determined by a court of competent jurisdiction (which determination is
         not subject to appeal or further review) that such failure shall have
         prejudiced the Indemnifying Party.

                  An Indemnified Party shall have the right to employ separate
         counsel in any such Proceeding and to participate in the defense
         thereof, but the fees and expenses of such counsel shall be at the
         expense of such Indemnified Party or Parties unless: (1) the
         Indemnifying Party has agreed in writing to pay such fees and expenses;
         (2) the Indemnifying Party shall have failed promptly to assume the
         defense of such Proceeding and to employ counsel reasonably
         satisfactory to such Indemnified Party in any such Proceeding; or (3)
         the named parties to any such Proceeding (including any impleaded
         parties) include both such Indemnified Party and the Indemnifying
         Party, and such Indemnified Party shall reasonably believe that a
         material conflict of interest is likely to exist if the same counsel
         were to represent such Indemnified Party and the Indemnifying Party (in
         which case, if such Indemnified Party notifies the Indemnifying Party
         in writing that it elects to employ separate counsel at the expense of
         the Indemnifying Party, the Indemnifying Party shall not have the right
         to assume the defense thereof and the reasonable fees and expenses of
         one separate counsel shall be at the expense of the Indemnifying
         Party). The Indemnifying Party shall not be liable for any settlement
         of any such Proceeding effected without its written consent, which
         consent shall not be unreasonably withheld. No Indemnifying Party
         shall, without the prior written consent of the Indemnified Party,
         effect any settlement of any pending Proceeding in respect of which any
         Indemnified Party is a party, unless such settlement includes an
         unconditional release of such Indemnified Party from all liability on
         claims that are the subject matter of such Proceeding.

                  Subject to the terms of this Agreement, all reasonable fees
         and expenses of the Indemnified Party (including reasonable fees and
         expenses to the extent incurred in connection with investigating or
         preparing to defend such Proceeding in a manner not inconsistent with
         this Section) shall be paid to the Indemnified Party, as incurred,
         within ten Trading Days of written notice thereof to the Indemnifying
         Party; PROVIDED, that the Indemnified Party shall promptly reimburse
         the Indemnifying Party for that portion of such fees and expenses
         applicable to such actions for which such Indemnified Party is not
         entitled to indemnification hereunder, determined based upon the
         relative faults of the parties.

                  (d) CONTRIBUTION. If a claim for indemnification under Section
         5(a) or 5(b) is unavailable to an Indemnified Party (by reason of
         public policy or otherwise), then each Indemnifying Party, in lieu of
         indemnifying such Indemnified Party, shall contribute to the amount
         paid or payable by such Indemnified Party as a result of such Losses,
         in such proportion as is appropriate to reflect the relative fault of
         the Indemnifying Party and Indemnified Party in connection with the
         actions, statements or omissions that resulted in such Losses as well
         as any other relevant equitable considerations. The relative fault of
         such Indemnifying Party and Indemnified Party shall be determined by
         reference to, among other things, whether any action in question,
         including any untrue or alleged

                                      -9-
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         untrue statement of a material fact or omission or alleged omission of
         a material fact, has been taken or made by, or relates to information
         supplied by, such Indemnifying Party or Indemnified Party, and the
         parties' relative intent, knowledge, access to information and
         opportunity to correct or prevent such action, statement or omission.
         The amount paid or payable by a party as a result of any Losses shall
         be deemed to include, subject to the limitations set forth in this
         Agreement, any reasonable attorneys' or other reasonable fees or
         expenses incurred by such party in connection with any Proceeding to
         the extent such party would have been indemnified for such fees or
         expenses if the indemnification provided for in this Section was
         available to such party in accordance with its terms.

                  The parties hereto agree that it would not be just and
         equitable if contribution pursuant to this Section 5(d) were determined
         by pro rata allocation or by any other method of allocation that does
         not take into account the equitable considerations referred to in the
         immediately preceding paragraph. Notwithstanding the provisions of this
         Section 5(d), no Holder shall be required to contribute, in the
         aggregate, any amount in excess of the amount by which the proceeds
         actually received by such Holder from the sale of the Registrable
         Securities subject to the Proceeding exceeds the amount of any damages
         that such Holder has otherwise been required to pay by reason of such
         untrue or alleged untrue statement or omission or alleged omission,
         except in the case of fraud by such Holder.

                  The indemnity and contribution agreements contained in this
         Section are in addition to any liability that the Indemnifying Parties
         may have to the Indemnified Parties.

         6. MISCELLANEOUS

                  (a) REMEDIES. In the event of a breach by the Company or by a
         Holder, of any of their obligations under this Agreement, each Holder
         or the Company, as the case may be, in addition to being entitled to
         exercise all rights granted by law and under this Agreement, including
         recovery of damages, will be entitled to specific performance of its
         rights under this Agreement. The Company and each Holder agree that
         monetary damages would not provide adequate compensation for any losses
         incurred by reason of a breach by it of any of the provisions of this
         Agreement and hereby further agrees that, in the event of any action
         for specific performance in respect of such breach, it shall waive the
         defense that a remedy at law would be adequate.

                  (b) NO PIGGYBACK ON REGISTRATIONS. Except as set forth on
         Schedule 6(b) attached hereto, neither the Company nor any of its
         security holders (other than the Holders in such capacity pursuant
         hereto) may include securities of the Company in a Registration
         Statement other than the Registrable Securities. No Person has any
         right to cause the Company to effect the registration under the
         Securities Act of any securities of the Company. The Company shall not
         file any other registration statement until after the Effective Date.

                                      -10-
<PAGE>

                  (c) COMPLIANCE. Each Holder covenants and agrees that it will
         comply with the prospectus delivery requirements of the Securities Act
         as applicable to it in connection with sales of Registrable Securities
         pursuant to the Registration Statement.

                  (d) DISCONTINUED DISPOSITION. Each Holder agrees by its
         acquisition of such Registrable Securities that, upon receipt of a
         notice from the Company of the occurrence of any event of the kind
         described in Section 3(c), such Holder will forthwith discontinue
         disposition of such Registrable Securities under the Registration
         Statement until such Holder's receipt of the copies of the supplemented
         Prospectus and/or amended Registration Statement or until it is advised
         in writing (the "ADVICE") by the Company that the use of the applicable
         Prospectus may be resumed, and, in either case, has received copies of
         any additional or supplemental filings that are incorporated or deemed
         to be incorporated by reference in such Prospectus or Registration
         Statement. The Company will use its best efforts to ensure that the use
         of the Prospectus may be resumed as promptly as it practicable. The
         Company agrees and acknowledges that any periods during which the
         Holder is required to discontinue the disposition of the Registrable
         Securities hereunder shall be subject to the provisions of Section
         2(b).

                  (e) PIGGY-BACK REGISTRATIONS. If at any time during the
         Effectiveness Period there is not an effective Registration Statement
         covering all of the Registrable Securities and the Company shall
         determine to prepare and file with the Commission a registration
         statement relating to an offering for its own account or the account of
         others under the Securities Act of any of its equity securities, other
         than on Form S-4 or Form S-8 (each as promulgated under the Securities
         Act) or their then equivalents relating to equity securities to be
         issued solely in connection with any acquisition of any entity or
         business or equity securities issuable in connection with the stock
         option or other employee benefit plans, then the Company shall send to
         each Holder a written notice of such determination and, if within
         fifteen days after the date of such notice, any such Holder shall so
         request in writing, the Company shall include in such registration
         statement all or any part of such Registrable Securities such Holder
         requests to be registered, subject to customary underwriter cutbacks
         applicable to all holders of registration rights.

                  (f) AMENDMENTS AND WAIVERS. The provisions of this Agreement,
         including the provisions of this sentence, may not be amended, modified
         or supplemented, and waivers or consents to departures from the
         provisions hereof may not be given, unless the same shall be in writing
         and signed by the Company and each Holder of the then outstanding
         Registrable Securities.

                  (g) NOTICES. Any and all notices or other communications or
         deliveries required or permitted to be provided hereunder shall be made
         in accordance with the provisions of the Purchase Agreement.

                  (h) SUCCESSORS AND ASSIGNS. This Agreement shall inure to the
         benefit of and be binding upon the successors and permitted assigns of
         each of the parties and shall inure to the benefit of each Holder. Each
         Holder may assign their respective rights hereunder in the manner and
         to the Persons as permitted under the Purchase Agreement.

                                      -11-
<PAGE>

                  (i) EXECUTION AND COUNTERPARTS. This Agreement may be executed
         in any number of counterparts, each of which when so executed shall be
         deemed to be an original and, all of which taken together shall
         constitute one and the same Agreement. In the event that any signature
         is delivered by facsimile transmission, such signature shall create a
         valid binding obligation of the party executing (or on whose behalf
         such signature is executed) the same with the same force and effect as
         if such facsimile signature were the original thereof.

                  (j) GOVERNING LAW. All questions concerning the construction,
         validity, enforcement and interpretation of this Agreement shall be
         determined with the provisions of the Purchase Agreement.

                  (k) CUMULATIVE REMEDIES. The remedies provided herein are
         cumulative and not exclusive of any remedies provided by law.

                  (l) SEVERABILITY. If any term, provision, covenant or
         restriction of this Agreement is held by a court of competent
         jurisdiction to be invalid, illegal, void or unenforceable, the
         remainder of the terms, provisions, covenants and restrictions set
         forth herein shall remain in full force and effect and shall in no way
         be affected, impaired or invalidated, and the parties hereto shall use
         their commercially reasonable efforts to find and employ an alternative
         means to achieve the same or substantially the same result as that
         contemplated by such term, provision, covenant or restriction. It is
         hereby stipulated and declared to be the intention of the parties that
         they would have executed the remaining terms, provisions, covenants and
         restrictions without including any of such that may be hereafter
         declared invalid, illegal, void or unenforceable.

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

                  (n) INDEPENDENT NATURE OF PURCHASERS' OBLIGATIONS AND RIGHTS.
         The obligations of each Holder hereunder are several and not joint with
         the obligations of any other Holder hereunder, and no Holder shall be
         responsible in any way for the performance of the obligations of any
         other Holder hereunder. Nothing contained herein or in any other
         agreement or document delivered at any closing, and no action taken by
         any Holder pursuant hereto or thereto, shall be deemed to constitute
         the Holders as a partnership, an association, a joint venture or any
         other kind of entity, or create a presumption that the Holders are in
         any way acting in concert with respect to such obligations or the
         transactions contemplated by this Agreement. Each Holder shall be
         entitled to protect and enforce its rights, including without
         limitation the rights arising out of this Agreement, and it shall not
         be necessary for any other Holder to be joined as an additional party
         in any proceeding for such purpose.

                            *************************


                                      -12-
<PAGE>


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


                              US DATAWORKS, INC.

                              By:/S/ CHARLES E. RAMEY
                                 --------------------
                                 Name: Charles E. Ramey
                                 Title: Chief Executive Officer




                       [SIGNATURE PAGE OF HOLDERS FOLLOWS]




                                      -13-
<PAGE>


                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:      RICHARD ABBE
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:     /S/ RICHARD ABBE
                                                       -----------------------
Name of Authorized Signatory:
                             ---------------------------------------------------
Title of Authorized Signatory:
                              --------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-
<PAGE>


                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    BLUEGRASS GROWTH FUND LP
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ DEBORAH SOLOMON
                                                       -------------------------
Name of Authorized Signatory:    DEBORAH SOLOMON
                              --------------------------------------------------
Title of Authorized Signatory:   MANAGING MEMBER OF BLUEGRASS GROWTH FUND
                               -------------------------------------------------
                                 PARTNERS LLC
                               ---------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:   BRISTOL INVESTMENT FUND LTD.
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ PAUL KESSLER
                                                       -------------------------
Name of Authorized Signatory:   PAUL KESSLER
                             ---------------------------------------------------
Title of Authorized Signatory:    DIRECTOR
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    CAPITAL VENTURES INTERNATIONAL
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ MARTIN KOBINGER
                                                       -------------------------
Name of Authorized Signatory:    MARTIN KOBINGER
                              --------------------------------------------------
Title of Authorized Signatory:    INVESTMENT MANAGER
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]

                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    SCOT COHEN
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    S/ SCOT COHEN
                                                       -------------------------
Name of Authorized Signatory:    SCOT COHEN
                              --------------------------------------------------
Title of Authorized Signatory:
                              --------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]

                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    IROQUOIS CAPITAL LP
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ JOSHUA SILVERMAN
                                                       -------------------------
Name of Authorized Signatory:    JOSHUA SILVERMAN
                              --------------------------------------------------
Title of Authorized Signatory:    PARTNER
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    OMICRON MASTER FUND
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ BRUCE BERNSTEIN
                                                       -------------------------
Name of Authorized Signatory:    BRUCE BERNSTEIN
                              --------------------------------------------------
Title of Authorized Signatory:    MANAGING PARTNER
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    PROVIDENT PREMIER MASTER FUND, LTD.
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ STEVEN W. WINTERS
                                                       -------------------------
Name of Authorized Signatory:    STEVEN W. WINTERS
                              --------------------------------------------------
Title of Authorized Signatory:    ATTORNEY-IN-FACT
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-
<PAGE>



                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    SATELLITE STRATEGIC FINANCE ASSOCIATES LLC
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ BRIAN S. KRIFTCHER
                                                       -------------------------
Name of Authorized Signatory:    BRIAN S. KRIFTCHER
                              --------------------------------------------------
Title of Authorized Signatory:    CHIEF OPERATING OFFICER & PRINCIPAL
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]

                                      -14-
<PAGE>


                     [PURCHASER'S SIGNATURE PAGE TO UDW RRA]

Name of Investing Entity:    SMITHFIELD FIDUCIARY LLC
                          ------------------------------------------------------
SIGNATURE OF AUTHORIZED SIGNATORY OF INVESTING ENTITY:    /S/ ADAM J. CHILL
                                                       -------------------------
Name of Authorized Signatory:    ADAM J. CHILL
                              --------------------------------------------------
Title of Authorized Signatory:    AUTHORIZED SIGNATORY
                               -------------------------------------------------



                           [SIGNATURE PAGES CONTINUE]


                                      -14-