Document:

Exhibit 10.80

                    AMENDMENT NO. 1 TO SERIES C CONVERTIBLE
                       PREFERRED STOCK PURCHASE AGREEMENT

         This Amendment No.1 (the "Amendment") dated as of December 31, 2003, is
made to that certain Series C Convertible Stock Purchase Agreement (the "Series
C Stock Purchase Agreement") dated as of September 4, 2003, by and between INSCI
Corp., a Delaware corporation (the "Company") and SCP Private Equity Partners
II, L.P., a Delaware limited partnership (the "Investor"), and is executed by
the Company, the Investor and CSSMK, LLC, a Massachusetts limited liability
company with a principal place of business located at 38 Oriole Road, Medfield,
MA 02052 ("CSSMK"). Capitalized terms not otherwise defined in this Amendment
shall have the same meaning as set forth in the Series C Stock Purchase
Agreement.

                                    RECITALS

         WHEREAS, the Company wishes to issue and sell additional shares of
Series C Preferred Stock and CSSMK wishes to purchase the shares; and

         WHEREAS, the Company and the Investor desire to amend the Series C
Stock Purchase Agreement to increase the total number of shares of Series C
Preferred Stock authorized to be sold to 1,804,496, to include CSSMK as a party
to the Series C Stock Purchase Agreement, and to update certain other
information;

         NOW, THEREFORE, in consideration of the foregoing and the mutual
promises and covenants hereinafter contained, the parties, agreeing to be
legally bound, hereto agree to the following:

           1. AMENDMENTS. Effective as of the date hereof, the following
sections of the Series C Stock Purchase Agreement shall be amended by (i) adding
the following sections and terms or (ii) if such sections and terms already
exist in the Series C Stock Purchase Agreement, deleting such sections or terms
in their entirety and replacing them with the following:

               1.1 DEFINITIONS. Together, the Investor and CSSMK shall be
referred to as the "Investors". Any reference to the "Investor" in Sections 2
(including Sections 2.1-2.28), 3.2, 3.3, 3.5, 3.6, 3.7, 7.1, 7.2 and 7.10 shall
be amended by deleting it and replacing it with the term "Investors".

               1.2 SECTION 1.1 (C). "Subject to the terms and conditions of this
Agreement, CSSMK agrees to purchase, and the Company agrees to sell and issue to
the CSSMK, 257,785 shares of the Series C Preferred Stock at a price per share
of $1.9396, for an aggregate purchase price of $500,000 on December 31, 2003.
The rights, privileges and preferences of the Series C Preferred Stock shall be
as stated in the Designation."

               1.3 SECTION 1.3. CONSIDERATION. "(a) At the Closing, the Company
shall deliver to the Investor, a certificate representing 515,571 shares of the
Securities against payment of $1,000,000 of the Purchase Price by wire transfer.
The remainder of the Securities shall be sold and issued to the Investor as
follows: (a) 257,785 shares of the Securities against payment of $500,000 of the
Purchase Price thirty days after the date of Closing (the "Closing Date"); (b)

<PAGE>

257,785 shares of the Securities against payment of $500,000 of the Purchase
Price sixty days after the Closing Date; (c) 257,785 shares of the Securities
against payment of $500,000 of the Purchase Price ninety days after the Closing
Date; and (d) 257,785 shares of the Securities against payment of $500,000 of
the Purchase Price one hundred twenty days after the Closing Date (each such
payment of the Purchase Price, a "Post-Closing Payment"). The due date of any
Post-Closing Payment (and the corresponding sale and issuance of Securities) may
be changed to an earlier date with the written consent of the Investors and the
approval of a majority of the members of the Board of Directors of the Company
(the "Board"). The Investor's obligation to make each Post-Closing Payment is
conditioned upon the Investor's receipt of (i) a certificate, dated as of the
date of such Post-Closing Payment, and signed by an executive officer of the
Company, certifying that the representations contained in Section 2 of this
Agreement, are true and correct at and as of such date; and (ii) a certificate
representing the Securities being purchased on the date of such Post-Closing
Payment.

         (b) On December 31, 2003, the Company shall deliver to CSSMK a
certificate representing 257,785 shares of the Securities against payment of
$500,000 by wire transfer or certified check."

               1.4 SECTION 3.4 INVESTMENT EXPERIENCE. "The Investor is an
investor in securities of companies in the development stage and acknowledges
that it is able to fend for itself, can bear the economic risk of its
investment, and has such knowledge and experience in financial or business
matters that it is capable of evaluating the merits and risks of the investment
in the Securities. The Investor also represents it has not been organized for
the purpose of acquiring the Securities. CSSMK acknowledges that it is an
investment company, and acknowledges that it is able to fend for itself, can
bear the economic risk of its investment, and has such knowledge and experience
in financial or business matters that it is capable of evaluating the merits and
risks of the investment in the Securities."

               1.5 SECTION 3.7 FURTHER LIMITATIONS ON DISPOSITION. "Without in
any way limiting the representations set forth above, the Investor further
agrees not to make any disposition of all or any portion of the Securities or
the Conversion Shares unless and until the transferee has agreed in writing for
the benefit of the Company to be bound by this Section 3 and the applicable
provisions of the Amended and Restated Registration Rights Agreement and:

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

         (b) Such Investor shall have notified the Company of the proposed
disposition and shall have furnished the Company with a detailed statement of
the circumstances surrounding the proposed disposition and, if requested by the
Company, such Investor shall have furnished the Company with an opinion of
counsel, reasonably satisfactory to the Company that such disposition will not
require registration of such shares under the Act. It is agreed that the Company
will not require opinions of counsel for transactions made pursuant to Rule 144
except in unusual circumstances or unless required by a transfer agent.

Notwithstanding the provisions of subsections (a) and (b) above, no such
registration statement or opinion of counsel shall be necessary for a transfer

                                      -2-

<PAGE>

by an Investor that is a partnership to a partner of such partnership or a
retired partner of such partnership who retires after the date hereof, or to the
estate of any such partner or retired partner or the transfer by gift, will or
intestate succession of any partner to his or her spouse or to the siblings,
lineal descendants or ancestors of such partner or his or her spouse, if the
transferee agrees in writing to be subject to the terms hereof to the same
extent as if he or she were an original Investor hereunder. Notwithstanding the
foregoing, no such registration statement or opinion of counsel shall be
necessary for a transfer by CSSMK to any of its Permitted Transferees (as
defined under the Stockholders Agreement dated as of December 31, 2003 by and
among the Company, SCP Private Equity Partners II, L.P. and CSSMK)."

               1.6 SECTION 7.7 NOTICES. "All notices and other communications
hereunder shall be in writing and shall be deemed given if delivered personally
or by commercial overnight courier (with confirmation of receipt) or sent via
facsimile (with confirmation of receipt), (a) in case of the Company, to the
Company at Two Westborough Business Park, 200 Friberg Parkway, Suite 2000,
Westborough, MA 01581 (Fax: (508) 870-5585), Attn: President, with a copy to
Baratta & Goldstein, 597 Fifth Avenue, New York, NY 10017; (b) in the case of
SCP Private Equity Partners II, L.P., to SCP Private Equity Partners II, L.P. at
435 Devon Park Drive, Building 300, Wayne, Pennsylvania 19087 (Fax: (610)
975-9546), Attention: General Counsel (or at such other address for a party as
shall be specified by like notice), with a copy to Saul Ewing LLP, Centre Square
West, 1500 Market Street, 38th Floor, Philadelphia PA 19102-2186 (Fax: (215)
972-1934), Attention: Charles C. Zall; in case of CSSMK, LLC, to 38 Oriole Road,
Medfield, MA 02052, Attention: Henry F. Nelson, (Fax: (508) 359-4382), with a
copy to Nelson & Roche, 60 McGrath Highway, Quincy, MA 02169, Attention: John
Nelson, (Fax: (617) 770-0077). Notice given by facsimile shall be confirmed by
appropriate answer back and shall be effective upon actual receipt if received
during the recipient's normal business hours, or at the beginning of the
recipient's next business day after receipt if not received during the
recipient's normal business hours. All notices by facsimile shall be confirmed
promptly after transmission in writing by certified mail or personal delivery.
Any party may change any address to which notice is to be given to it by giving
notice as provided above of such change of address."

           2. MISCELLANEOUS. Except as amended hereby, the Series C Stock
Purchase Agreement shall remain in full force and effect. This Amendment shall
be governed by the laws of the State of Delaware, and may be executed in
multiple counterparts, each of which shall be considered an original but all of
which shall constitute one and the same agreement.

                                      -3-

<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Amendment to the
Series C Stock Purchase Agreement as of the date first above written.

                          COMPANY:

                          INSCI CORP.

                          By:  /s/ CYNTHIA RAE BOTSCH
                             -----------------------------------------
                          Name:   Cynthia Rae Botsch
                          Title:  Assistant Secretary

                          INVESTOR:

                          SCP PRIVATE EQUITY PARTNERS II, L.P.

                          By:      SCP Private Equity II General Partner, L.P.,
                                   its General Partner

                          By: SCP Private Equity II LLC

                          By:  /s/ YARON EITAN
                             -----------------------------------------
                          Name:  Yaron Eitan
                          Title: Manager

                          CSSMK:

                          CSSMK, LLC

                         By:   /s/ HENRY F. NELSON
                            -----------------------------------------
                         Name:    Henry F. Nelson
                         Title:   Manager

                                      -4-

<PAGE>EXHIBIT 10.81
                             STOCKHOLDERS AGREEMENT

         THIS STOCKHOLDERS AGREEMENT (the "Agreement") is made and entered into
as of this 31st day of December, 2003, by and among Insci Corp., a Delaware
corporation (the "Company"), SCP Private Equity Partners II, L.P., a Delaware
limited liability partnership ("SCP") and CSSMK, LLC, a Massachusetts limited
liability company (the "Stockholder").

                                    RECITALS

         WHEREAS, the Company and SCP entered into a Series C Convertible
Preferred Stock Purchase Agreement on September 4, 2003 (the "Series C Purchase
Agreement") pursuant to which SCP purchased 1,546,711 shares of Series C
Convertible Preferred Stock, par value $.01 per share ("Series C Preferred
Stock") for a purchase price of $3,000,000 to be paid in a series of payments
over a period of one hundred twenty (120) days following the date of execution
of the Series C Purchase Agreement; and

         WHEREAS, as of the date hereof, the Stockholder purchased 257,785
shares of Series C Preferred Stock pursuant to the Series C Purchase Agreement,
as amended; and

         WHEREAS, the Company, SCP and the Stockholder wish to set forth their
respective rights with respect to the Series C Preferred Shares, as evidenced by
their signatures to this Agreement;

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto, intending to be legally bound, agree as
follows:

1. TRANSFERS AND ASSIGNMENTS OF SERIES C PREFERRED SHARES.

         1.1 RESTRICTION ON TRANSFER. No Transfer of any of the Series C
Preferred Shares by the Stockholder (including a Permitted Transfer) may occur
unless and until (a) the Company has received written notice of the proposed
Transfer, setting forth the circumstance and details thereof at least thirty
(30) days prior to its effectiveness; (b) the Company has (at its option)
received an attorney's written opinion within twenty (20) days following such
notice, from an attorney and in a form reasonably satisfactory to the Company,
specifying the nature and circumstances of the proposed Transfer, and stating
that the proposed Transfer will not be in violation of Section 5 of the
Securities Act, or any other applicable state securities laws; (c) the Company
has received from the Transferee a written consent to be bound by all of the
terms and conditions of this Agreement; and (d) the Company has received
reasonable assurances (in its sole and absolute discretion) that the Transfer
complies with all other applicable requirements of this Agreement.

         1.2 TRANSFEREE BOUND BY AGREEMENT. The Series C Preferred Shares owned
or controlled by a Transferee (including a Permitted Transferee) will for all
purposes be subject to the terms of this Agreement, whether or not such
Transferee has executed a consent to be bound by this Agreement.

<PAGE>

         1.3 INVALID SALES. Any purported Transfer of the Series C Preferred
Shares made without fully complying with all of the provisions of this Agreement
will be null and void AB INITIO and without force or effect.

         1.4 PERMITTED TRANSFERS. The Stockholder may Transfer all or any of its
Series C Preferred Shares to a "Permitted Transferee", which shall include the
following:

                  (a) any spouse, sibling, child or grandchild of any beneficial
owner of the Stockholder;

                  (b) a trust, partnership, limited liability company or
corporation in which the sole beneficiaries, partners, members or shareholders
are persons described in clause (a) or entities wholly owned by such persons; or

                  (c) any other Person approved in writing by the Board of
Directors.

         1.5 LIMITATION ON CERTAIN PERMITTED TRANSFEREE RIGHTS. Unless otherwise
specified by the Board of Directors of the Company, Permitted Transferees
defined in Sections 1.4(a) and 1.4(b) shall receive only the economic rights of
the Series C Preferred Shares pursuant to such Transfer (i.e., such transferees
or assignees shall not be entitled to exercise any voting rights with respect to
transferred Series C Preferred Shares under this Agreement or otherwise).

2.       RIGHT OF FIRST REFUSAL.

         2.1 NOTICE OF SALE. Except for Permitted Transfers, the Stockholder
shall not Transfer any Series C Preferred Shares, or any right or interest
therein, to any Person in any manner whatsoever, whether voluntarily or by
operation of law or otherwise, unless it shall have first given written notice
to the Company and to SCP of its intent to do so. Such notice (the "Notice")
shall (i) name the proposed Transferee (who shall have made a bona fide written
offer on the terms set forth in the Notice); (ii) specify the number of shares
to be Transferred; (iii) the cash price per share, and (iv) the timing of the
payments to be made. No Transfer of Series C Preferred Shares may be made for
anything other than cash or notes without the prior written permission of the
Company and SCP.

         2.2 SCP RIGHT OF FIRST REFUSAL. Except for Permitted Transfers, if the
Stockholder (or Permitted Transferee) wishes to sell its Series C Preferred
Shares upon receiving a bona fide offer (the "Third Party Offer") in writing
from an unaffiliated third party, the Stockholder must first offer such Series C
Preferred Shares to SCP under terms and conditions, including price, not less
favorable to SCP than those in the Third Party Offer. Such offer to SCP shall be
made by written notice and shall set forth (i) the terms of the proposed sale;
(ii) the percentage of the Series C Preferred Shares to be sold; and (iii) the
identity of the proposed buyer. SCP shall have thirty (30) days from the receipt
of such notice to exercise its right to purchase all or any part of the Series C
Preferred Shares which are subject to the Third Party Offer. In the event that
SCP elects to purchase all or any part of such Series C Preferred Shares, SCP
shall notify the Stockholder of such decision and the closing thereof, which
shall occur no more than twenty (20) days following such election.

                                      -2-
<PAGE>

         2.3 COMPANY RIGHT OF SECOND REFUSAL. In the event that SCP does not
purchase all of the Series C Preferred Shares offered by the Stockholder
pursuant to Section 2.2 of the Agreement, the Stockholder must then offer such
portion of the Series C Preferred Shares not purchased by SCP to the Company
under terms and conditions, including price, not less favorable to the Company
than those in the Third Party Offer. Such offer to the Company shall be made by
written notice and shall set forth (i) the terms of the proposed sale; (ii) the
percentage of the Series C Preferred Shares to be sold; (iii) the number of
Series C Preferred Shares purchased by SCP; and (iv) the identity of the
proposed buyer. The Company shall have twenty (20) days from the receipt of such
notice to exercise its right to purchase all or any part of such Series C
Preferred Shares. In the event that the Company elects to purchase all or any
part of such Series C Preferred Shares, the Company shall notify the Stockholder
of such decision and the closing thereof, which shall occur no more than twenty
(20) days following such election.

         2.4 FAILURE TO EXERCISE RIGHT OF FIRST REFUSAL. Upon expiration of the
period for exercise of the right of first refusal by SCP and the Company under
Sections 2.2 and 2.3, or if the total number of shares specified by SCP and the
Company is less than all of the Series C Preferred Shares specified in the
Notice following the date of the Third Party Offer, then the Stockholder may
transfer to the proposed Transferee the portion of the Series C Preferred Shares
as to which SCP and the Company have not elected to purchase, under Sections 2.2
and 2.3, respectively, at any time within thirty (30) days following the
expiration of the applicable notice periods in Sections 2.2 and 2.3, at a price
and on terms no more favorable to the Transferee than those specified in the
Notice. Any later proposed Transfer may be made (if otherwise permissible) only
by again following the procedures specified in this Section 2.

         2.5 PURCHASE PRICE; CLOSING OF PURCHASE. In the case of any purchase
and sale made pursuant to this Section 2, the purchase price per share shall be
the cash price per share specified in the Notice. The closing of any purchase of
Series C Preferred Shares by SCP or the Company shall be held at a time
specified by SCP or the Company within twenty (20) days after the exercise of
any option or right of first or second refusal hereunder at the then principal
offices of the Company, or such other place as is agreed upon by the parties
thereto. At the closing, the Stockholder shall deliver to each of SCP and the
Company its share of the Series C Preferred Shares, duly endorsed for transfer
and accompanied by duly executed stock powers, and SCP and/or the Company shall
deliver to the Stockholder the purchase price therefor.

3.       DRAG-ALONG SALES.

         3.1 RIGHT TO REQUIRE SALE. Notwithstanding any other provision of this
Agreement, if SCP (alone or with other Persons holding shares of capital stock
of the Company) agrees to sell Series C Preferred Shares of the Company pursuant
to a transaction in which more than 50% of the total outstanding voting power of
the Company will be sold to a third party (a "Buyer") who is not an Affiliate of
SCP (any such transaction, a "Drag-Along Sale"), then the Stockholder (or any
Permitted Transferee) hereby agrees to sell to such Buyer, upon the demand of
SCP, the number of Series C Preferred Shares held by the Stockholder which
represents the same percentage of voting power (based on the Stockholder's total
voting power as of the date of the Drag-Along Notice, as defined below) as the
percentage of voting power represented by the number of Series C Preferred
Shares SCP is proposing to sell in the Drag-Along Sale (based on SCP's total
voting power as of the date of the Drag-Along Notice), at the same price
(assuming full conversion of the Series C Preferred Shares into Common Stock)
and on the same terms and conditions as SCP has agreed with such Buyer. In
addition to any voting obligations set forth in Section 5, and subject to any
fiduciary duties as a director of the Company, if the Drag-Along Sale is in the
form of a merger transaction, the Stockholder agrees to vote its Series C
Preferred Shares in favor of such merger and not to exercise any rights of
appraisal or dissent afforded under applicable law.

                                      -3-
<PAGE>

         3.2 DRAG-ALONG NOTICE. If SCP elects to exercise the rights afforded
under this Section 3, it will provide the Stockholder with written notice (the
"Drag-Along Notice") not more than sixty (60) nor less than thirty (30) days
prior to the proposed date of the Drag-Along Sale (the "Drag-Along Sale Date").
The Drag-Along Notice will set forth: (i) the name and address of the Buyer;
(ii) the proposed amount and form of consideration to be paid per share and the
terms and conditions of payment offered by the Buyer; (iii) the aggregate number
of shares held of record by SCP; and (iv) the Drag-Along Sale Date.

         3.3 DELIVERY OF CERTIFICATES. On the Drag-Along Sale Date, the
Stockholder will deliver a certificate or certificates for all of its Series C
Preferred Shares required to be sold under this Section 3, duly endorsed for
transfer with signatures guaranteed, to the Buyer in the manner and at the
address indicated in the Drag-Along Notice against payment by the Buyer to the
Stockholder of the purchase price for such Series C Preferred Shares.

         3.4 CONSIDERATION. The provisions of this Section 3 will apply
regardless of the form of consideration received in the Drag-Along Sale.

4.       TAG-ALONG RIGHTS.

         4.1 RIGHT TO PARTICIPATE IN SALE. Subject to Section 3, if SCP enters
into an agreement to Transfer any of its Series C Preferred Shares to a third
party who is not an Affiliate of SCP (such Transfer being referred to as a
"Tag-Along Sale"), then the Stockholder shall have the right, but not the
obligation (except as provided in Section 3), to participate in such Tag-Along
Sale. The number of Series C Preferred Shares that the Stockholder will be
entitled to include in such Tag-Along Sale (the "Stockholder's Allotment") shall
be determined by multiplying (i) the number of Series C Preferred Shares held by
the Stockholder by (ii) a fraction, the numerator of which shall equal the
number of shares of Series C Preferred Shares proposed by SCP to be sold or
otherwise disposed of pursuant to the Tag-Along Sale and the denominator of
which shall equal the total number of shares of Series C Preferred Shares held
by SCP.

         4.2 SALE NOTICE. SCP shall provide the Stockholder and the Company with
written notice (the "Tag-Along Sale Notice") not more than sixty (60) nor less
than thirty (30) days prior to the proposed date of the Tag-Along Sale (the
"Tag-Along Sale Date"). Each Tag-Along Sale Notice shall set forth: (i) the name
and address of each proposed Transferee of Series C Preferred Shares in the
Tag-Along Sale; (ii) the number of Series C Preferred Shares proposed to be
transferred or sold; (iii) the proposed amount and form of consideration to be
paid for Series C Preferred Shares and the terms and conditions of payment
offered by each proposed Transferee; (iv) the Stockholder's Allotment; (v)
confirmation that the proposed Transferee has been informed of the rights and
obligations under this Section 4; and (vi) the Tag-Along Sale Date.

                                      -4-
<PAGE>

         4.3 TAG-ALONG NOTICE. If the Stockholder wishes to participate in the
Tag-Along Sale, it shall provide written notice (the "Tag-Along Notice") to SCP
no less than ten (10) business days prior to the Tag-Along Sale Date. The
Tag-Along Notice shall set forth the number of Series C Preferred Shares that
such Stockholder elects to include in the Tag-Along Sale, which shall not exceed
the Stockholder's Allotment. The Tag-Along Notice given by the Stockholder shall
constitute such Stockholder's binding agreement to sell such Series C Preferred
Shares specified in the Tag-Along Notice on the terms and conditions applicable
to the Tag-Along Sale.

                  If a Tag-Along Notice from the Stockholder is not received by
SCP prior to the ten (10) business day period specified above, SCP shall then
have the right to consummate the Tag-Along Sale without the participation of the
Stockholder, but only on terms and conditions which are no more favorable in any
material respect to SCP than as stated in the Tag-Along Sale Notice and only if
such Tag-Along Sale occurs on a date within ninety (90) days of the Tag-Along
Sale Date.

         4.4 EXEMPT TRANSFERS. The provisions of this Section 4 shall not apply
to any bona fide public distribution of shares of Series C Preferred Shares
pursuant to Rule 144 of the Securities Act, provided that any such sale complies
with the provisions of this Agreement.

         4.5 TERMINATION OF TAG-ALONG RIGHTS. The Stockholder's rights under
this Section 4 shall terminate if SCP ceases to own at least 66% of the
Company's Series C Preferred Shares; provided, however, SCP shall not avoid the
provisions of this Section 4 by making one or more transfers to SCP's permitted
transferees. In the event SCP's percentage ownership of the voting securities of
the Company falls below 66% as a result of transfers to SCP's permitted
transferees, then the Stockholder's rights under this Section 4 shall remain in
full force and effect against each of such permitted transferees and SCP shall
cause each such permitted transferee to agree in writing to be bound by the
terms of this Section 4.

                                      -5-
<PAGE>

5. VOTING AGREEMENTS. The Stockholder, and all Permitted Transferees thereof,
hereby covenant and agree, subject to any fiduciary duties as a director of the
Company, to vote in accordance with SCP with respect to any change in control of
the Company (which may include a merger, consolidation, recapitalization, or
sale of all or substantially all of the assets or securities of the Company),
any change to the designations of any series of preferred stock of the Company,
and the election of directors.

6. TERMINATION OF AGREEMENT. This Agreement will terminate upon the earliest of
the following: (a) upon the written agreement of all of the parties; (b) the
closing of any transaction or series of related transactions (including, without
limitation, any reorganization, merger or consolidation) that will result in the
Company's stockholders immediately prior to such transaction holding less than a
majority of the voting power of the surviving or continuing entity, or (c) a
sale of all or substantially all of the assets of the Company, unless the
Company's shareholders immediately prior to such sale will, as a result of such
sale, hold at least a majority of the voting power of the purchasing entity.

7. MARKET STAND-OFF. The Stockholder and its Permitted Transferees agree not to
sell, contract to sell, make any short sale of, loan, grant any option for the
purchase of, or otherwise dispose of (including by means of sales pursuant to
Rule 144) any of the Series C Preferred Shares, or any securities convertible
into or exchangeable or exercisable for the Series C Preferred Shares during the
ninety (90) day period beginning on the effective date of the registration
statement for any underwritten offering (except as part of such underwritten
registration), unless the managing underwriters for the registered public
offering otherwise agree.

8. DEFINITIONS.

         8.1 "AFFILIATE" means, with respect to any Person, any other Person
(other than the Company) directly or indirectly, through one or more
intermediaries, controlling, controlled by or under common control with any such
Person and, when used with reference to any natural Person, will also include
such Person's spouse, parents and descendants (whether by blood or adoption, and
including stepchildren) and the spouses of such Persons.

         8.2 "COMMON STOCK" means the Company's common stock, par value $0.01
per share.

         8.3 "CONTROL" (including the terms "CONTROLLING," "CONTROLLED BY" and
"UNDER COMMON CONTROL WITH") means, with respect to a Person other than a
natural Person, the possession, direct or indirect, of the power to direct or
cause the direction of the management and policies of a Person, whether through
the ownership of voting securities of that Person, by contract, or otherwise.

         8.4 "PERSON" means a company, a corporation, an association, a
partnership, a limited liability company, an organization, a joint venture, a
trust or other legal entity, an individual, a government or political
subdivision thereof or a governmental agency.

         8.5 "PERMITTED TRANSFER" means a Transfer to a Permitted Transferee.

         8.6 "SECURITIES ACT" means the Securities Act of l933, as amended.

                                      -6-
<PAGE>

         8.7 "SERIES C PREFERRED SHARES" means shares of the Company's Series C
Preferred Stock.

         8.8 "TRANSFER" means any sale, transfer, assignment, hypothecation,
encumbrance or other disposition, whether voluntary or involuntary, whether by
gift, bequest or otherwise, of Series C Preferred Shares.

         8.9 "TRANSFEREE" means any Person (including a Permitted Transferee) to
whom a Stockholder Transfers any of the Shares.

9.       GENERAL.

         9.1 EQUITABLE RELIEF. Each party acknowledges that, in the event of a
threatened or actual breach of any of the provisions of this Agreement, damages
alone will be an inadequate remedy, and such breach will cause the other parties
great, immediate and irreparable injury and damage. Accordingly, each party
agrees that the other parties will be entitled to injunctive and other equitable
relief, and that such relief will be in addition to, and not in lieu of, any
remedies they may have at law or under this Agreement.

         9.2 LEGEND. In addition to any other legend which may be required by
agreement or applicable law, each share certificate of the Company will have
endorsed upon its face the following words:

         THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
RESTRICTIONS ON TRANSFER, SALE AND HYPOTHECATION AND CERTAIN PURCHASE RIGHTS. A
COMPLETE STATEMENT OF THE TERMS AND CONDITIONS GOVERNING SUCH RESTRICTIONS IS
SET FORTH IN A STOCKHOLDERS AGREEMENT, A COPY OF WHICH IS ON FILE AT THE
COMPANY'S PRINCIPAL OFFICE.

         9.3 CONSTRUCTION. Throughout this Agreement, as the context requires,
(a) the masculine gender includes the feminine and the neuter gender includes
the masculine and the feminine, (b) the singular tense and number includes the
plural, and the plural tense and number includes the singular; (c) the past
tense includes the present, and the present tense includes the past; and (d)
references to parties and sections mean the parties to and sections of this
Agreement. The section headings in this Agreement are inserted only as a matter
of convenience, and in no way define, limit, extend, or interpret the scope of
this Agreement or of any particular section.

         9.4 SEVERABILITY. Each term, covenant, condition, or provision of this
Agreement will be viewed as separate and distinct, and in the event that any
such term, covenant, condition or provision should be deemed by a court of
competent jurisdiction to be invalid or unenforceable, the court finding such
invalidity or unenforceability will modify or reform this Agreement to give as
much effect as possible to the terms and provisions of this Agreement. Any term
or provision which cannot be so modified or reformed will be deleted and the
remaining terms and provisions will continue in full force and effect.

                                      -7-
<PAGE>

         9.5 THIRD-PARTY BENEFICIARIES. Except as expressly provided in this
Agreement, none of the provisions of this Agreement are intended to benefit, or
to be enforceable by, any third-party beneficiaries.

         9.6 NOTICES. All notices or other communications required or permitted
by this Agreement must be in writing and sent by certified or registered mail
with postage prepaid, return receipt requested, by facsimile, overnight courier,
or by hand delivery. Such communications will be deemed given and received on
dispatch, if sent by facsimile; or on delivery if sent by overnight courier or
hand delivered; or within three (3) business days of mailing, if sent by
certified or registered mail, and will be addressed to the Company at the
following address: Two Westborough Business Park, 200 Friberg Parkway, Suite
2000, Westborough, MA 01581; to SCP at 1200 Liberty Ridge Drive, Suite 300,
Wayne, PA 19087; and to the Stockholder at 38 Oriole Road, Medfield, MA 02052,
Attention: Henry F. Nelson, (Fax: (508) 359-4382), with a copy to Nelson &
Roche, 60 McGrath Highway, Quincy, MA 02169, Attention: John Nelson, (Fax: (617)
770-0077).

         9.7 FURTHER ASSURANCES. Each party agrees to execute any and all
further documents and writings, and to perform such other actions, which may be
or become reasonably necessary or expedient to be made effective and carry out
this Agreement.

         9.8 ASSIGNMENT. Except as provided herein to the contrary, this
Agreement will be binding upon and inure to the benefit of the parties, their
respective successors and permitted assigns. The Stockholder may not assign any
of his rights under this Agreement without the prior written consent of the
Company and SCP. Without limiting the foregoing, SCP may assign its rights under
this Agreement to any Person that acquires 50% or more of the Company's
outstanding voting securities.

         9.9 AMENDMENT. This Agreement may be amended, altered or modified only
by a writing signed by all of the parties (except for the addition of parties
pursuant to transfers in accordance with the terms and conditions of this
Agreement).

         9.10 WAIVER AND REMEDIES. No provision of this Agreement will be deemed
waived and no breach excused unless such waiver or consent excusing the breach
is made in writing and signed by the waiving party. No course of dealing with or
failure of either party to strictly enforce any term, right or condition of this
Agreement will be construed as a waiver of such provision. A waiver by a party
of any provision of this Agreement will not be construed as a waiver of any
other provision of this Agreement. No remedy conferred on any party by any of
the specific provisions of this Agreement is intended to be exclusive of any
other remedy, and each and every remedy will be cumulative and in addition to
every other remedy given under this Agreement or now or hereafter existing at
law or in equity or by statute or otherwise. The election of one or more
remedies by a party will not constitute a waiver of the right to pursue other
available remedies.

         9.11 GOVERNING LAW. This Agreement shall be enforced, governed by, and
construed in accordance with the laws of the State of Delaware, regardless of
the choice or conflict of laws provisions of Delaware or any other jurisdiction.

                                      -8-
<PAGE>

         9.12 COUNTERPARTS. This Agreement may be executed simultaneously in two
or more counterparts, each of which will be deemed an original, but all of which
together will constitute one and the same instrument.

         9.13 ENTIRE AGREEMENT. This Agreement constitutes the entire agreement
and understanding between the parties with respect to its subject matter and
supersedes any and all prior or contemporaneous oral or written communications
with respect hereto. This Agreement will not be modified, amended, or altered
except in a writing executed by all parties.

                                      -9-
<PAGE>

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

COMPANY:                                        SCP:

INSCI CORP.                                     SCP PRIVATE EQUITY PARTNERS II,
                                                L.P.
                                                BY: SCP PRIVATE EQUITY II
                                                GENERAL  PARTNER,  L.P.,
                                                ITS GENERAL PARTNER
By:  /s/ CYNTHIA RAE BOTSCH                     BY: SCP PRIVATE EQUITY II, LLC
   -------------------------------------

Name:   Cynthia Rae Botsch

Title:  Assistant Secretary                     BY:   /s/ YARON EITAN
      ----------------------------------              --------------------------
                                                Name: Yaron Eitan
                                                      --------------------------
                                                Title: Partner
                                                      --------------------------

                                                STOCKHOLDER:

                                                CSSMK, LLC

                                                BY:   /S/ HENRY F. NELSON
                                                      --------------------------
                                                Name: Henry F. Nelson
                                                      --------------------------
                                                Title: Manager
                                                      --------------------------

                                      -10-
<PAGE>

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