MODIFICATION AGREEMENT TO
                                 PROMISSORY NOTE

This  MODIFICATION  AGREEMENT  is made as of December 6, 2005  between  Infinite
Group, Inc., a Delaware corporation with offices at 595 Blossom Road, Suite 309,
Rochester, NY 14610 ("Borrower") and Northwest Hampton Holdings, LLC, a New York
limited liability company with an address at 308 Rock Beach Road, Rochester,  NY
14617 ("NWHH").

WHEREAS,  NWHH is the  holder  of a  Promissory  Note  dated  January  16,  2003
originally issued by the Borrower to Northeast Hampton Holdings, LLC ("NEHH") in
the principal amount of $100,000 (the Note); and

WHEREAS,  NEHH  has  assigned  the Note to NWHH  pursuant  to an  Assignment  of
Promissory Notes dated December 1, 2004; and

WHEREAS,  on December 6, 2005 NWHH converted  $25,000 of the principal amount of
the Note into Common Stock of the Borrower  pursuant to the conversion  terms of
the Note; and

WHEREAS,  the parties  desire to modify the terms and  conditions of the Note to
reflect this conversion:

NOW, THEREFORE, the parties agree as follows:

      1)    The  principal  amount  of the  Note is now  Seventy  Five  Thousand
            Dollars ($75,000).

      2)    Except as modified by this  Agreement,  all of the terms,  covenants
            and conditions of the Note shall remain the same.

In witness whereof, Borrower and NWHH have executed this Agreement under the day
and year first written above.

INFINITE GROUP, INC.


/s/ Michael S. Smith
-----------------------
By: Michael S. Smith, President


NORTHWEST HAMPTON HOLDINGS, LLC


/s/ James A. Villa
------------------
By: James A. Villa, President