9/11/96
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                          REGISTRATION RIGHTS AGREEMENT

      THIS REGISTRATION  RIGHTS AGREEMENT (this "Agreement") is made and entered
into as of September 12, 1996 by Data Systems  Network  Corporation,  a Michigan
corporation  (the  "Company"),  and SofTech,  Inc., a Massachusetts  corporation
("SofTech"),  for itself and on behalf  and for the  benefit of its  successors,
assigns,  distributees and transferees  (collectively,  the "Holders" and each a
"Holder").

      WHEREAS, the Company is a party to a certain Asset Purchase Agreement (the
"Asset Purchase Agreement"),  of even date herewith,  with SofTech,  Information
Decisions,  Incorporated ("IDI"), a Michigan corporation, and System Constructs,
Inc. ("SCI"), a New York corporation;

      WHEREAS,  as part of the  purchase  price for the  assets  to be  acquired
pursuant to the Asset  Purchase  Agreement,  the  Company  will issue to SofTech
540,000 shares (the  "Shares") of its Common Stock,  $.01 par value (the "Common
Stock");

      WHEREAS,  SofTech  intends to distribute the Shares at the time and in the
manner provided in this Agreement;

      WHEREAS,  in order to induce SofTech,  IDI and SCI to enter into the Asset
Purchase  Agreement,  the  Company  has agreed to provide  certain  registration
rights to the Holders with respect to the Shares;

      NOW,  THEREFORE,  the Company  for the  benefit of the  Holders  agrees as
follows:

      Section 1.  Definitions.

      As used in this Agreement,  the following  capitalized defined terms shall
have the following meanings:

      Advice:  As set forth in Section 4(d).

      Cut-Off Period:  As set forth in Section 2(c).

      Division:  The Division of Corporation Finance of the SEC.

      Exchange Act: The Securities Exchange Act of 1934, as amended from time to
time.

      Favorable No-Action Letter:  As set forth in Section 2(a)(1).

      Holder:  As set forth in the preamble.

      Holder's  Questionnaire:  A  questionnaire  in the form attached hereto as
Exhibit A.

      Majority Holders: At any time, Holders of Registrable Securities who would
then hold a majority of the Registrable Securities.

      NASD:  The National Association of Securities Dealers, Inc.

      No-Action Request:  As set forth in Section 2(a)(1).

      Person:  Any individual, partnership, corporation, trust or other entity.

      Public Registration Event:  As set forth in Section 2(a)(2).

      Prospectus:  A prospectus  included in the Shelf  Registration  Statement,
including  any  preliminary  prospectus,  and any such  prospectus 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 Shelf
Registration  Statement,  and by all other  amendments  and  supplements to such
prospectus,  including post-effective amendments, and in each case including all
material incorporated by reference therein.

      Registrable Securities:  The Shares, excluding Shares which have been sold
or otherwise disposed of under the Shelf Registration Statement.

      Registration  Expenses: Any and all expenses incident to performance of or
compliance  with this Agreement,  including,  without  limitation:  (i) all SEC,
stock exchange or NASD  registration and filing fees, (ii) all fees and expenses
incurred in connection with  compliance  with state  securities or blue sky laws
(including  reasonable fees and disbursements of counsel in connection with blue
sky qualification of any of the Registrable  Securities and the preparation of a
Blue Sky  Memorandum)  and  compliance  with the  rules of the  NASD,  (iii) all
expenses of any Persons in preparing or assisting in preparing, word processing,
printing  and  distributing  the  Shelf  Registration   Statement,   Prospectus,
certificates  and other documents  relating to the performance of and compliance
with the Agreement,  (iv) all fees and expenses  incurred in connection with the
listing, if any, of any of the Registrable Securities on any securities exchange
or exchange pursuant to Section 3(h) hereof,  and (v) the fees and disbursements
of counsel  for the  Company  and of the  independent  publicaccountants  of the
Company, including the expenses of any special audits or "cold comfort" letters,
if any, required by or incident to such performance and compliance. Registration
Expenses shall  specifically  exclude  underwriting  discounts and  commissions,
brokerage or dealer fees, the fees and disbursements of counsel,  accountants or
other  representatives  of a selling Holder, and transfer taxes, if any relating
to the sale or  disposition  of  Registrable  Securities by such Holder,  all of
which shall be borne by such Holder in all cases.

      Registration Notice:  As set forth in Section 2(c)(ii) hereof.

      Rule 144: Rule 144 promulgated  under the Securities Act, as such rule may
be amended from time to time.

      SEC:  The Securities and Exchange Commission.

      Securities Act:  The Securities Act of 1933, as amended from time to time.

      Shareholder Registration Event:  As set forth in Section 2(a)(2)(iii).

      Shares:  As set forth in the recitals.

      Shelf  Registration:  A registration  required to be effected  pursuant to
Section 2 hereof.

      Shelf  Registration  Statement:  A "shelf"  registration  statement of the
Company and any other entity  required to be a  registrant  with respect to such
shelf registration  statement pursuant to the requirements of the Securities Act
which covers all of the Registrable Securities on an appropriate form under Rule
415 under the  Securities  Act, or any  similar  rule that may be adopted by the
SEC,  and  all  amendments  and  supplements  to  such  registration  statement,
including  post-effective  amendments,  in each case  including  the  Prospectus
contained  therein,  all  exhibits  thereto and all  materials  incorporated  by
reference therein.

      SofTech Registration Event:  As set forth in Section 2(a)(2)(ii).

      Suspension Notice:  As set forth in Section 4(d).

      Section 2.  Shelf Registration Under the Securities Act.

      (a)(1) Filing of No-Action  Request.  As soon as practicable and not later
than the 30th day after the date of this  Agreement,  the Company shall cause to
be filed  with  theSEC,  on behalf  of  itself  and  SofTech,  a  request  for a
"no-action"  letter from the Division (the "No-Action  Request") stating that it
will not recommend enforcement action if SofTech distributes the Shares pro rata
to its shareholders as a dividend without  registration under the Securities Act
and that the Shares  received by SofTech  shareholders  will not be  "restricted
securities" within the meaning of Rule 144 (a "Favorable No-Action Letter"). The
cost of preparing the No-Action Request will be borne equally by the Company and
SofTech.  The parties  agree to respond to any  requests  from the  Division for
additional  information as promptly as reasonably possible so as to expedite the
Division's response to the No-Action Request to the extent practicable.  To that
end,  the parties will  promptly  and fully inform each other of  correspondence
with the Division,  whether written or oral,  concerning the No-Action  Request.
Promptly  following the filing of the No-Action  Request,  the Company agrees to
begin  preparation  of the  Shelf  Registration  Statement;  provided,  that the
Company shall not be required to file the Shelf Registration  Statement with the
SEC or any  other  regulatory  authority  unless  and  until  required  to do so
pursuant to Section 2(a)(2).

      (2) Filing of Shelf  Registration  Statement;  Distribution of Shares. The
Company's  obligation  to  file a Shelf  Registration  Statement  and  SofTech's
obligation  to distribute  the Shares shall be  determined  in  accordance  with
clauses (i), (ii), (iii), (iv) and (v) below. The Company's obligation to file a
Shelf  Registration  Statement  shall  also be subject  to  Sections  2(c) and 4
hereof.

               (i)  Upon  receipt  of a  Favorable  No-Action  Letter  from  the
      Division,  the parties to this Agreement shall have no further  obligation
      under this  Agreement,  except that (A) SofTech shall promptly  distribute
      the Shares pro rata to its shareholders and (B) the parties shall pay bear
      the costs of  preparing  the  No-Action  Request and pay the  Registration
      Expenses and other expenses in accordance with Sections  2(a)(1) and 2(b).
      If  the  Division   indicates  in  writing  that  it  will  not  recommend
      enforcement  action if  SofTech  distributes  the  Shares  pro rata to its
      shareholders as a dividend without  registration under the Securities Act,
      an opinion of counsel  shall not be required to be  delivered  pursuant to
      Section 3.8 of the Asset  Purchase  Agreement or  otherwise in  connection
      with such distribution.

               (ii) If, after the No-Action  Request is filed,  (A) the Division
      determines not to issue a Favorable No-Action Letter and indicates that it
      is unable to concur that the proposed  distribution  by SofTech  would not
      involve a sale within the meaning of Section 2(3) of the  Securities  Act,
      or (B) the Company  withdraws  the  No-Action  Request or (C) the Division
      fails to make any  determination  with  respect to the  No-Action  Request
      within a period of 60 days after the filing of the No-Action Request ((A),
      (B) and (C) are  referred  to herein as a "SofTech  Registration  Event"),
      then not later than (x) the  earlier of (I) the 30th day after the earlier
      of the Company's  receipt of written notice of such  determination  in (A)
      above or the  withdrawal by the Company of the  No-Action  Request or (II)
      the 75th day after the date the  No-Action  Request  is filed,  or (y) the
      14th day after the  Company's  receipt  of a Holder's  Questionnaire  from
      SofTech,  whichever is later, the Company shall cause to be filed with the
      SEC a Shelf  Registration  Statement on behalf of SofTech  registering the
      pro rata  distribution  of the Shares by SofTech  to its  shareholders  in
      accordance  with the terms hereof and will use its reasonable best efforts
      to cause such Shelf Registration Statement to be declared effective by the
      SEC  as  soon  as  reasonably   practicable.   Promptly  after  the  Shelf
      Registration  Statement has been declared effective by the SEC and SofTech
      has been notified by the Company that the Registrable Securities have been
      registered or qualified, or are exempt from registration or qualification,
      in each  state in which a  shareholder  of record of SofTech on the record
      date for such  distribution  resides,  SofTech shall distribute the Shares
      pro rata to its shareholders.

               (iii) If,  after the  No-Action  Request is filed,  the  Division
      determines  not to issue a Favorable  No-Action  Letter and indicates that
      although it will not recommend  enforcement action if SofTech  distributes
      the Shares pro rata to its shareholders as a dividend without registration
      under the Securities  Act, it does not concur that the Shares  received by
      SofTech  shareholders  will  not be  "restricted  securities"  within  the
      meaning of Rule 144 (a "Shareholder  Registration  Event"), then not later
      than (x) the 30th day after the  Company's  receipt of  written  notice of
      such  determination  or (y) the 14th day after the  Company's  receipt  of
      Holder's Questionnaires from the Majority Holders, whichever is later, the
      Company  shall  cause  to be  filed  with  the  SEC a  Shelf  Registration
      Statement  providing for the sale by the Holders of all of the Registrable
      Securities in accordance with the terms hereof and will use its reasonable
      best  efforts to cause such Shelf  Registration  Statement  to be declared
      effective  by the SEC as soon as  reasonably  practicable.  SofTech  shall
      distribute the Shares pro rata to its shareholders  promptly following the
      Company's receipt of such notice of effectiveness.

               (iv) If the making of the  distribution  at the time  required in
      clauses (i), (ii) or (iii) above would have a material  adverse  effect on
      SofTech and if a delay in the making of the distribution  would materially
      reduce such effect on SofTech,  Buyer shall,  upon the written  request of
      SofTech,  permit  SofTech  to delay the making of the  distribution  for a
      reasonable  time to be  mutually  determined  and  agreed  to by Buyer and
      SofTech and SofTech shall reimburse  Buyer for any expenses  incurred as a
      result of such delay.

               (v) If (A) at the time a distribution of the Shares by SofTech is
      required  due to the  occurrence  of a  SofTech  Registration  Event  or a
      Shareholder  Registration Event,  SofTech's Board of Directors  reasonably
      determines  in good  faith that the  financial  condition  of SofTech  has
      deteriorated  since the  closing of the Asset  Purchase  Agreement  to the
      extent  that a pro rata  distribution  of the  Shares to its  shareholders
      would be  materially  detrimental  to  SofTech's  ability to continue  its
      operations or (B) the Division's written determination with respect to the
      No-Action  Request  permits  neither  the  distribution  of the  Shares by
      SofTech  pro  rata to its  shareholders  without  registration  under  the
      Securities  Act  nor  the  registration  of such  distribution  under  the
      Securities  Act  ((A)  and  (B)  are  referred  to  herein  as  a  "Public
      Registration  Event"),  then not  later  than (x) the 30th day  after  the
      earlier of the Company's  receipt of written notice of such  determination
      or  (y)  the  14th  day  after  the   Company's   receipt  of  a  Holder's
      Questionnaire from SofTech, whichever is later, the Company shall cause to
      be filed with the SEC a Shelf Registration  Statement on behalf of SofTech
      registering  the sale of the Shares by SofTech to the public in accordance
      with the terms  hereof and will use its  reasonable  best efforts to cause
      such Shelf  Registration  Statement to be declared effective by the SEC as
      soon as reasonably practicable.

      (3) Period of  Effectiveness.  The  Company  agrees to use its  reasonable
efforts to keep the Shelf  Registration  Statement  continuously in effect under
the Securities Act until  paragraph (k) of Rule 144 is available for the sale of
the Registrable  Securities by the Holder(s)  thereof (assuming for such purpose
that no such Holder is an  "affiliate"  as defined in Rule 144) or, if the Shelf
Registration  Statement is filedin response to a Public  Registration Event, the
date which  constitutes  the earliest  date  SofTech  could have sold all of the
Registrable  Securities  in  accordance  with Section 4(h) hereof  following the
effective  date of the Shelf  Registration  Statement.  Such Shelf  Registration
Statement  shall be  available  for the sale of the  Registrable  Securities  in
accordance  with the intended  method or methods of  distribution by the selling
Holders  thereof and shall comply as to form in all material  respects  with the
requirements of the applicable form.

      (b) Expenses.  Registration  Expenses in connection with the  registration
pursuant  to  Section  2(a)  shall be paid by SofTech to the extent of the first
$20,000 of such Expenses.  The amount of Registration Expenses exceeding $20,000
shall be borne  equally by SofTech and the  Company.  Each Holder  shall pay all
underwriting  discounts and commissions,  brokerage or dealer fees, the fees and
disbursements of counsel,  accountants or other  representatives  of such Holder
and transfer taxes, if any,  relating to the sale or disposition of the Holder's
Registrable Securities.

      (c)  Inclusion  in  Shelf  Registration   Statement  After  a  Shareholder
Registration  Event.  (i) Following a Shareholder  Registration  Event,  SofTech
shall,  within  seven  days  after  such  Event,  cause to be  delivered  to its
shareholders  a form of  Holder's  Questionnaire  at the  time  the  Shares  are
distributed by SofTech to its shareholders. Following a Shareholder Registration
Event,  any Holder who  desires to be  eligible  to make offers and sales of its
Registrable  Securities  at the time the Shelf  Registration  Statement  becomes
effective shall deliver a completed and executed  Holder's  Questionnaire to the
Company  no later  than  fourteen  (14)  days  prior to the  filing of the Shelf
Registration  Statement with the SEC. Any Holder who does not deliver a Holder's
Questionnaire  (completed  and executed) to the Company prior to such date shall
not be  eligible  to make  offers or sales  pursuant  to the Shelf  Registration
Statement at the time it becomes effective,  but shall have the right thereafter
to deliver  to the  Company a  Registration  Notice as  contemplated  by Section
2(c)(ii).

               (ii) Following a Shareholder  Registration  Event, if the Company
receives a Holder's  Questionnaire  and a written notice from a Holder that such
Holder  desires to make  offers and sales of  Registrable  Securities  under the
Shelf  Registration  Statement (a "Registration  Notice") at any time during the
30-day period (the "Cut-Off  Period")  beginning on the date provided in Section
2(c)(i)  above,  the Company will prepare and file with the SEC on or before the
30th day after the end of the Cut-Off Period, a post-effective  amendment to the
Shelf Registration Statement or a supplement to the Prospectus (whichever may be
required by the Securities Act andthe related rules and  regulations of the SEC)
to  permit  each  Holder   delivering   a   Registration   Notice  and  Holder's
Questionnaire  within the time  prescribed  above to make offers and sales under
the  Shelf  Registration  Statement;  provided,  that the  Company  shall not be
required  to file  more  than a total of one such  post-effective  amendment  or
Prospectus supplement; further provided, that such Holders shall not be eligible
to make offers and sales pursuant to the Shelf Registration Statement until such
amendment or supplement  is filed (and, in the case of an amendment,  has become
effective  with the SEC and all  relevant  state  securities  authorities);  and
further  provided,  that the Company shall have no obligation under this Section
2(c)(ii) unless the Shelf Registration Statement has been declared effective and
remains in effect on such date. Any Holder who does not provide the Company with
a Registration Notice and a Holder's Questionnaire before the end of the Cut-Off
Period  and who was not  eligible  to make  offers  and  sales  under  the Shelf
Registration Statement at the time it became effective shall not be permitted to
make offers and sales pursuant to the Shelf Registration Statement.

      Section 3.  Registration Procedures.

      In  connection  with the  obligations  of the Company  with respect to the
Shelf  Registration  Statement  pursuant  to  Section 2 hereof,  and  subject to
Sections  3(a) and 4, the Company  shall do the  following  during the period in
which the Shelf Registration Statement is required to be kept effective:

      (a) Amendments;  Comment Responses. (i) Prepare and file with the SEC such
amendments and post-effective  amendments to the Shelf Registration Statement as
may be  necessary to keep the Shelf  Registration  Statement  effective  for the
applicable period; (ii) upon the occurrence of any event contemplated by Section
3(d)(iv)  hereof,  use its  reasonable  efforts  promptly  to prepare and file a
supplement  or  prepare,  file  and  obtain  effectiveness  of a  post-effective
amendment to the Shelf  Registration  Statement or a related  Prospectus  or any
document  incorporated  therein by reference or file any other required document
so  that,  as  thereafter   delivered  to  the  purchasers  of  the  Registrable
Securities,  such Prospectus will 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 the light of the circumstances  under which
they were made, not  misleading;  (iii) cause each Prospectus to be supplemented
by any  required  Prospectus  supplement,  and as so  supplemented  to be  filed
pursuant  to  Rule  424 or any  similar  rule  that  may be  adopted  under  the
Securities Act; and (iv) respond promptly to any comments  received from the SEC
with  respect  to  the  Shelf   Registration   Statement,   or  any   amendment,
post-effective amendment or supplement relating thereto.

      (b) Copies of Prospectus. Furnish to each Holder of Registrable Securities
who is eligible to make offers and sales under the Shelf Registration Statement,
without  charge,  as many copies of each applicable  Prospectus,  including each
preliminary  Prospectus,  and any amendment or supplement thereto and such other
documents  as such  Holder may  reasonably  request in order to  facilitate  the
public sale or other disposition of the Registrable Securities.

      (c) Blue Sky. Use its  reasonable  best efforts to register or qualify the
Registrable  Securities under all applicable state securities or "blue sky" laws
of,  in the case of a  SofTech  Registration  Event,  such  states  in which the
shareholders of SofTech of record on the record date for the distribution of the
Shares by SofTech reside or, in the case of a Shareholder Registration Event, in
such  states as any Holder of  Registrable  Securities  who is  eligible to make
offers and sales under the Shelf Registration Statement shall reasonably request
in writing,  keep each such  registration or qualification  effective during the
period  in  which  the  Shelf  Registration  Statement  is  required  to be kept
effective  or during the period  offers or sales are being made by a Holder that
has delivered a Registration Notice to the Company, whichever is shorter, and do
any and all other acts and things which may be reasonably necessary or advisable
to  enable  such  Holder  to  consummate  the  disposition  of such  Registrable
Securities owned by such Holder in each such state; provided,  however, that the
Company  shall not be required  (i) to qualify  generally  to do business in any
jurisdiction or to register as a broker or dealer in such jurisdiction  where it
would not be required so to qualify or register but for this Section 3(c),  (ii)
to subject itself to taxation in any such  jurisdiction,  (iii) to submit to the
general  service of  process in any such  jurisdiction  or (iv) to  register  or
qualify the Registrable Securities in any jurisdiction in which an exemption for
such Registrable  Securities or for the offer and sale thereof by such Holder is
available.

      (d)  Notification.  Promptly  notify  each  Holder who is eligible to make
offers  and  sales  under  the  Shelf  Registration  Statement  when  the  Shelf
Registration  Statement has become effective and when the Registrable Securities
have been  registered or qualified in each state requested (or that an exemption
from  registration or  qualification is available) and promptly notify each such
Holder  and each  Holder of  Registrable  Securities  who  subsequently  becomes
eligible  to make offers and sales under the Shelf  Registration  Statement  (i)
when any  post-effective  amendments and  supplements to the Shelf  Registration
Statement become effective with the SEC or any state securities authority,  (ii)
of the issuance by the SEC or any state  securities  authority of any stop order
suspending   the   effectiveness   of  the  Shelf   Registration   Statement  or
theinitiation of any proceedings for that purpose, (iii) if the Company receives
any  notification  with respect to the  suspension of the  qualification  of the
Registrable  Securities  for sale in any  jurisdiction  or the initiation of any
proceeding  for such  purpose and (iv) of the  happening of any event during the
period the Shelf  Registration  Statement  is effective as a result of which the
Shelf  Registration  Statement  or a  related  Prospectus  contains  any  untrue
statement of a material  fact or omits to state any material fact required to be
stated therein or necessary to make the  statements  therein (in the case of the
Prospectus,  in light of the  circumstances  under  which  they  were  made) not
misleading.

      (e) Stop Orders.  Make every reasonable effort to obtain the withdrawal of
any  order  by  the  SEC  or  any  state  securities  authority  suspending  the
effectiveness  of the Shelf  Registration  Statement  at the  earliest  possible
moment.

      (f) Copies of Shelf Registration Statement and Amendment.  Furnish to each
Holder of Registrable  Securities who is eligible to make offers and sales under
the Shelf  Registration  Statement,  without charge upon request of such Holder,
one conformed copy of the Shelf  Registration  Statement and any  post-effective
amendment  thereto  (without  documents  incorporated  therein by  reference  or
exhibits thereto, unless requested).

      (g) Stock Certificates.  Cooperate with the selling Holders of Registrable
Securities to facilitate  the timely  preparation  and delivery of  certificates
representing  Registrable  Securities to be sold and not bearing any  Securities
Act legend and enable certificates for such Registrable  Securities to be issued
for such numbers of shares and  registered in such names as the selling  Holders
may reasonably request.

      (h) Earnings Statement. Make available to its security holders, as soon as
reasonably practicable,  an earnings statement covering at least 12 months which
shall satisfy the provisions of Section 11(a) of the Securities Act and Rule 158
thereunder.

      (i) Other Agreements. Refrain from entering into any agreement which would
prohibit  the Company  from filing and  gaining the  effectiveness  of the Shelf
Registration Statement in accordance with the terms hereof.

      Section  4.   Restrictions  on  Public  Sale  by  Holders  of  Registrable
Securities.

      In connection  with and as a condition to the Company's  obligations  with
respect to the Shelf Registration Statement pursuant to Sections 2 and 3 hereof,
each Holder agrees as follows:

      (a) Offers and Sales.  The Holder  will not offer or sell its  Registrable
Securities  under  the  Shelf  Registration   Statement  unless  (i)  the  Shelf
Registration Statement has become effective and has not been terminated and such
Holder  is  eligible  to make  offers  and sales  under  the Shelf  Registration
Statement pursuant to Section 2(c) hereof,  (ii) such Holder has received copies
of the  Prospectus  (as it may be  supplemented  or amended as  contemplated  by
Section 3(a) hereof),  and (iii) if any post-effective  amendment has been filed
with the SEC of which  filing such Holder has received  notice,  such Holder has
received notice that any such post-effective amendment has become effective.

      (b) Need to Use Updated Prospectus.  Upon receipt of a written notice from
the  Company  of the  happening  of any event of the kind  described  in Section
3(d)(iv)  hereof,  such  Holder  will  forthwith   discontinue   disposition  of
Registrable  Securities pursuant to the Shelf Registration  Statement until such
Holder receives copies of the supplemented or amended Prospectus contemplated by
Section 3(a) hereof and receives  notice that any  post-effective  amendment has
become effective,  and, if so directed by the Company,  such Holder will deliver
to the Company all copies in its  possession,  other than  permanent file copies
then in such Holder's  possession,  of the Prospectus  covering such Registrable
Securities  current at the time of receipt of such notice. In the event that any
Holder uses a Prospectus  in connection  with the offer and sale of  Registrable
Securities  covered by such  Prospectus,  such  Holder  will use only the latest
version of such Prospectus provided to it by the Company.

      (c)  Notification  of Sales.  Upon the sale or  disposition  of any of its
Registrable Securities pursuant to the Shelf Registration Statement,  the Holder
will  promptly  notify the  Company  in  writing  of the  number of  Registrable
Securities then being sold or disposed of.

      (d)  Moratorium.  If the Company  determines  in its good faith  judgment,
after  consultation  with  counsel,  that the  filing of the Shelf  Registration
Statement under Section 2 hereof or the use of any Prospectus  would require the
disclosure of important  information  which the Company has a bona fide business
purpose for preserving as  confidential  or the disclosure of which would impede
the  Company's  ability to consummate a  significant  transaction,  upon written
notice of such determination by the Company (a "Suspension Notice"),  the rights
of the Holders to offer, sell or distribute any Registrable  Securities pursuant
to the Shelf  Registration  Statement  or to require  the Company to take action
with respect to the registration or sale of any Registrable  Securities pursuant
to the Shelf  Registration  Statement  (including  any  action  contemplated  by
Sections 2 or 3 hereof) will  besuspended  until the date upon which the Company
notifies  the Holder in writing that  suspension  of such rights for the grounds
set forth in this Section 4(d) is no longer necessary (the "Advice");  provided,
however,  that the  Company  shall not give more than three  Suspension  Notices
during any period of twelve  consecutive months and in no event shall the period
from the date on which any Holder  receives a  Suspension  Notice to the date on
which any  Holder  receives  the  Advice  exceed 45 days.  In the event that the
Company shall give any Suspension  Notice,  the Company shall use its reasonable
best  efforts and take such  actions as are  reasonably  necessary to render the
Advice as promptly as practicable.

      (e)  Offering  by  Company.  In  the  case  of  the  registration  of  any
underwritten  equity  offering  proposed  by  the  Company,  SofTech  shall,  if
requested in writing by the managing  underwriter or underwriters  administering
such  offering  after the 90th day  following  the date  hereof,  not effect any
offer, sale or distribution of Registrable Securities (or any option or right to
acquire  Registrable  Securities)  during  the  period  commencing  on the  10th
business day prior to the expected effective date (which date shall be stated in
such notice) of the registration  statement  covering such  underwritten  equity
offering and ending on the date  specified by such managing  underwriter in such
written request to SofTech,  which date shall not be later than six months after
such expected date of effectiveness. In this regard, the Company represents that
it has no current intention to effect an underwritten equity offering.

      (f) Additional  Information.  In addition to the  information set forth in
the Holder's  Questionnaire,  the Holder of Registrable Securities shall furnish
to the Company in writing such  additional  information  regarding  the proposed
distribution  by such  Holder as the  Company  may from time to time  reasonably
request in writing.

      (g)  Distribution.  Each Holder  shall comply with the  provisions  of the
Securities Act with respect to the disposition of all securities  covered by the
Shelf Registration Statement during the applicable period in accordance with the
intended method or methods of distribution stated in the then-current version of
the Prospectus.

      (h) Sales by SofTech.  If SofTech is  permitted to make sales of Shares to
the public because a Public Registration Event has occurred,  SofTech agrees (i)
that all such sales shall comply with the manner of sale  restrictions set forth
in  paragraphs  (f) and (g) of Rule 144 and (ii) not to sell  Shares  in any one
month period in excess of the limit imposed by paragraph (e) of Rule 144 for any
three month period (without regard to the holding period, public information and
notice requirements of such Rule).

      Section 5.  Indemnification; Contribution.

      (a)  Indemnification  by the Company.  The Company agrees to indemnify and
hold harmless  each Holder and its officers and  directors  and each person,  if
any, who controls the Holder within the meaning of Section 15 of the  Securities
Act as follows:

            (i) against any and all loss,  liability,  claim, damage and expense
      whatsoever,  as incurred,  arising out of any untrue  statement or alleged
      untrue  statement of a material fact  contained in the Shelf  Registration
      Statement  (or any  amendment  thereto) or any  Prospectus,  including all
      documents  incorporated  therein by reference,  or the omission or alleged
      omission  therefrom  of a  material  fact  necessary  in order to make the
      statements  therein,  in light of the circumstances  under which they were
      made, not misleading:

            (ii) against any and all loss, liability,  claim, damage and expense
      whatsoever,  as incurred,  to the extent of the  aggregate  amount paid in
      settlement  of any  litigation,  or  investigation  or  proceeding  by any
      governmental  agency or body,  commenced  or  threatened,  or of any claim
      whatsoever based upon any such untrue  statement or omission,  or any such
      alleged untrue statement or omission,  if such settlement is effected with
      the written consent of the Company; and

            (iii) against any and all expense whatsoever, as incurred (including
      reasonable  fees and  disbursements  of counsel),  reasonably  incurred in
      investigating,   preparing  or  defending   against  any  litigation,   or
      investigation or proceeding by any governmental agency or body,  commenced
      or  threatened,  in  each  case  whether  or not a  party,  or  any  claim
      whatsoever based upon any such untrue  statement or omission,  or any such
      alleged untrue statement or omission,  to the extent that any such expense
      is not paid under clause (i) or (ii) above;

provided,  however,  that the indemnity  provided  pursuant to this Section 5(a)
does not apply to any Holder with respect to any loss, liability,  claim, damage
or expense to the extent  arising  out of any untrue  statement  or  omission or
alleged  untrue  statement or omission  made in reliance  upon and in conformity
with written  information  furnished to the Company by such Holder expressly for
use in the  Shelf  Registration  Statement  (or any  amendment  thereto)  or any
Prospectus.

      (b)  Indemnification  by Holder.  Each  Holder  severally  and not jointly
agrees to indemnify and hold harmless the Company and the other selling  Holders
and each of their directors and officers (including each director and officer of
the Company who signed the Shelf  Registration  Statement),  and each person, if
any, who controls the Company within the meaning of Section 15 of the Securities
Act,  to the same  extent as the  indemnity  contained  in Section  5(a)  hereof
(except that any settlement described in Section 5(a)(ii) shall be effected with
the written consent of such Holder),  but only insofar as such loss,  liability,
claim,  damage or expense arises out of or is based upon any untrue statement or
omission,   or  alleged  untrue  statement  or  omission,   made  in  the  Shelf
Registration  Statement (or any amendment thereto) or any Prospectus in reliance
upon and in conformity with written information furnished to the Company by such
selling  Holder  expressly for use in the Shelf  Registration  Statement (or any
amendment thereto) or such Prospectus; provided, however, that such Holder shall
not be  obligated  to provide  such  indemnity  to the extent that such  losses,
liabilities,  claims, damages or expenses result from the failure of the Company
to promptly amend or take action to correct or supplement any such  Registration
Statement or  Prospectus on the basis of corrected or  supplemental  information
provided in writing by such Holder to the Company expressly for such purpose. In
no event shall the liability of any Holder under this Section 5(b) be greater in
amount than the dollar  amount of the  proceeds  received by the Holder upon the
sale  of  the  Registrable   Securities  giving  rise  to  such  indemnification
obligation.

      (c) Notice.  Each indemnified party shall give reasonably prompt notice to
the  indemnifying  party of any  action or  proceeding  commenced  against it in
respect of which indemnity may be sought hereunder,  but failure so to notify an
indemnifying party (i) shall not relieve it from any liability which it may have
under the indemnity  agreement provided in Section 5(a) or (b) unless and to the
extent it did not  otherwise  learn of such action and the lack of notice by the
indemnified  party  results  in the  forfeiture  by the  indemnifying  party  of
substantial  rights and defenses  and (ii) shall not, in any event,  relieve the
indemnifying  party from any obligations to any indemnified party other than the
indemnification   obligation   provided  under  Section  5(a)  or  (b).  If  the
indemnifying  party so elects  within a  reasonable  time after  receipt of such
notice,  the  indemnifying  party  may  assume  the  defense  of such  action or
proceeding at such  indemnifying  party's own expense with counsel chosen by the
indemnifying  party;   provided,   however,  that,  if  such  indemnified  party
reasonably  determines  that a conflict of interest exists where it is advisable
for such  indemnified  party to be represented by separate counsel or that, upon
advice of  counsel,  there may be legal  defenses  available  to them  which are
different from or inaddition to those available to the indemnifying  party, then
the  indemnifying  party shall not be  entitled  to assume such  defense and the
indemnified  party shall be entitled to one separate counsel at the indemnifying
party's  expense.  If an  indemnifying  party is not so  entitled  to assume the
defense of such action or does not assume such  defense,  after having  received
the  notice  referred  to in the  first  sentence  of  this  Section  5(c),  the
indemnifying  party will pay the reasonable fees and expenses of counsel for the
indemnified  party. In such event however,  the  indemnifying  party will not be
liable  for  any  settlement  effected  without  the  written  consent  of  such
indemnifying  party but, if settled with such consent,  the  indemnifying  party
agrees to indemnify the  indemnified  party or parties from and against any loss
or  liability  by reason of such  settlement  upon the terms and  subject to the
conditions set forth in this Agreement. No indemnifying party shall, without the
prior written  consent of the  indemnified  party,  effect any settlement of any
pending or threatened proceeding in respect of which such indemnified party is a
party, and indemnity could have been sought hereunder by such indemnified 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.  If an indemnifying  party is entitled to assume,  and assumes,  the
defense of such action or  proceeding in accordance  with this  paragraph,  such
indemnifying  party shall not be liable for any fees and expenses of counsel for
the indemnified  parties  incurred  thereafter in connection with such action or
proceeding.

      (d) Contribution.  In order to provide for just and equitable contribution
in circumstances in which the indemnity agreement provided for in this Section 5
is for any reason held to be  unenforceable  although  applicable  in accordance
with its terms,  the Company and the selling  Holders  shall  contribute  to the
aggregate  losses,  liabilities,  claims,  damages  and  expenses  of the nature
contemplated by such indemnity agreement incurred by the Company and the selling
Holders,  in such  proportion as is appropriate to reflect the relative fault of
the  Company  on the one hand and the  selling  Holders  on the  other  (in such
proportions that the selling Holders are severally, not jointly, responsible for
the balance),  in connection  with the statements or omissions which resulted in
such losses,  liabilities,  claims,  damages or  expenses,  as well as any other
relevant equitable considerations.  The relative fault of the indemnifying party
and  indemnified  party shall be determined by reference to, among other things,
whether the action in question, including any untrue or alleged untrue statement
of a material fact or omission or alleged omission to state a material fact, has
been made by, or relates to information  supplied by, such indemnifying party or
the indemnified  party, and the parties' relative intent,  knowledge,  access to
information and opportunity to correct or prevent such action.

      The Company and the Holders  agree that it would not be just or  equitable
if  contribution  pursuant  to this  Section  5(d) were  determined  by pro rata
allocation or by any other method of  allocation  which does not take account of
the equitable considerations referred to in the immediately preceding paragraph.

      Notwithstanding   the   foregoing,   no  Person   guilty   of   fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
shall be  entitled  to  contribution  from any Person who was not guilty of such
fraudulent misrepresentation. For purposes of this Section 5(d), each Person, if
any,  who controls a Holder  within the meaning of Section 15 of the  Securities
Act and  directors  and  officers  of a Holder  shall  have the same  rights  to
contribution as such Holder,  and each director of the Company,  each officer of
the Company who signed the Shelf Registration Statement and each Person, if any,
who controls the Company  within the meaning of Section 15 of the Securities Act
shall have the same rights to contribution as the Company.

      Section 6. Rule 144 Sales.  The  Company  covenants  that it will file the
reports  required to be filed by the Company  under the  Securities  Act and the
Exchange Act, so as to enable any Holder to sell Registrable Securities pursuant
to Rule 144 under the  Securities Act after the Holder has satisfied the holding
period requirement set forth therein.

      Section 7.  Miscellaneous.

      (a) Amendments. The provisions of this Agreement, including the provisions
of this  sentence,  may not be  amended,  modified or  supplemented  without the
written consent of the Company and Holders constituting Majority Holders. Notice
of any  amendment,  modification  or  supplement  to this  Agreement  adopted in
accordance with this Section 7(a) shall be provided by Company to each Holder of
Registrable  Securities at least thirty (30) days prior to the effective date of
such amendment, modification or supplement.

      (b)  Notices.  All  notices  and  other  communications  provided  for  or
permitted  hereunder  shall  be made in  writing  by hand  delivery,  registered
first-class mail, telecopier or any courier guaranteeing overnight delivery, (i)
if to a Holder,  at the most current address given by such Holder to the Company
by means of a notice given in  accordance  with the  provisions  of this Section
7(b) or provided in a Holder's  Questionnaire,  which address initially is, with
respect to each Holder,  the address set forth in the Asset Purchase  Agreement,
or (ii) if to the  Company,  at 34705 W. 12 Mile  Road,  Suite  300,  Farmington
Hills, Michigan 48331, Attention: President.

      All such  notices  and  communications  shall be  deemed to have been duly
given:  at the time  delivered by hand, if personally  delivered;  five business
days after being deposited in the mail, postage prepaid, if mailed; when receipt
is acknowledged,  if telecopied; or at the time delivered if delivered by an air
courier guaranteeing overnight delivery.

      (c) Successors and Assigns.  This Agreement  shall inure to the benefit of
and be binding  upon the  successors,  assigns  and  transferees  of each of the
Company and the Holders, including without limitation subsequent Holders. If any
successor,  assignee  or  transferee  of any Holder  shall  acquire  Registrable
Securities,  in any  manner,  whether by  operation  of law or  otherwise,  such
Registrable  Securities  shall  be  held  subject  to all of the  terms  of this
Agreement,  and by taking and holding such  Registrable  Securities  such Person
shall be deemed a party hereto, shall be entitled to receive the benefits hereof
and shall be conclusively  deemed to have agreed to be bound by all of the terms
and provisions hereof.

      (d) Entire Agreement.  This Agreement  represents the entire agreement and
understanding among the parties hereto with respect to the subject matter hereof
and supersedes any and all prior oral and written  agreements,  arrangements and
understandings among the parties hereto with respect to such subject matter.

      (e) Paragraph  and Section  Headings.  The paragraph and section  headings
contained in this  Agreement are for general  reference  purposes only and shall
not affect in any manner the  meaning,  interpretation  or  construction  of the
terms or other provisions of this Agreement.

      (f)  APPLICABLE  LAW. THIS AGREEMENT  SHALL BE GOVERNED BY,  CONSTRUED AND
ENFORCED IN  ACCORDANCE  WITH THE LAWS OF THE STATE OF MICHIGAN,  APPLICABLE  TO
CONTRACTS TO BE MADE,  EXECUTED,  DELIVERED  AND  PERFORMED  WHOLLY  WITHIN SUCH
STATE,  AND, IN ANY CASE,  WITHOUT  REGARD TO THE CONFLICTS OF LAW PRINCIPLES OF
SUCH STATE.

      (g)  Severability.  If at any  time  subsequent  to the date  hereof,  any
provision of this Agreement shall be held by any court of competent jurisdiction
to be illegal,  void or  unenforceable,  such provision shall be of no force and
effect, but the illegality or  unenforceability  of such provision shall have no
effect upon and shall not impair the  enforceability  of any other  provision of
this Agreement.

      (h) Specific  Performance.  The Company and the Holders  acknowledge  that
there  would be no  adequate  remedy at law if any party fails to perform any of
its  obligations   hereunder,   and  accordingly  agree  that  the  Company  and
eachHolder,  in addition to any other  remedy to which it may be entitled at law
or  in  equity,  shall  be  entitled  to  compel  specific  performance  of  the
obligations  of another under this  Agreement in  accordance  with the terms and
conditions  of this  Agreement  in any court of the  United  States or any State
thereof having jurisdiction.

      (i) No  Waiver.  The  failure of any party at any time or times to require
performance  of any provision  hereof shall not affect the right at a later time
to enforce the same. No waiver by any party of any  condition,  and no breach of
any provision,  term,  covenant,  representation  or warranty  contained in this
Agreement,  whether by conduct or otherwise, in any one or more instances, shall
be  deemed  to be  construed  as a  further  or  continuing  waiver  of any such
condition   or  of  the  breach  of  any  other   provision,   term,   covenant,
representation or warranty of this Agreement.

      (j)  Counterparts.   This  Agreement  may  be  executed  in  two  or  more
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute but one and the same original instrument.

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

                                      DATA SYSTEMS NETWORK CORPORATION


                                      By: _____________________________________
                                          Name:
                                          Title:



                                      SOFTECH, INC.


                                      By: _____________________________________
                                          Name:
                                          Title: