November 18, 1996




Private & Confidential



Gandalf Technologies Inc.
130 Colonnade Road South
Nepean, Ontario
K2E 7M4



Attention:     Mr. Walter R. MacDonald
               Vice-President, Finance & CFO
               -----------------------------


Dear Sirs:

We refer to the letter agreement dated June 11, 1996 detailing a Credit Facility
made  available  to  Gandalf  Technologies  Inc.  by Royal  Bank of Canada  (the
"Agreement").  All capitalized terms and references herein have the same meaning
as those in the Agreement.

The Bank hereby  acknowledges  the breach by the Borrower of Sections  23(a) and
24(h) of the agreement for the reporting  period ended  September 28, 1996.  The
Bank  hereby  waives its  rights in  respect of the breach of Section  24(h) and
amends Section 23(a) to an amount of US  $34,5000,000  for the reporting  period
ended September 28, 1996.

The Bank also acknowledges  receipt from the Borrower of a letter dated November
11, 1996 attaching a revised plan of operations for the fiscal  quarters  ending
December 28, 1996, March 31, 1997 and June 28, 1997 (the "Bank Plan").

The Bank hereby amends the Agreement has follows:

      (i)                      Section 23(a) To maintain Tangible Net Worth on a
                               consolidated basis in amounts not less than those
                               stated in the Bank Plan for the respective fiscal
                               quarters ending December 28, 1996, March 31, 1997
                               and June 28, 1997.
      (ii)                     Section  23(b) Not to permit its Current Ratio on
                               a consolidated  basis to be less than that stated
                               in  the  Bank  Plan  for  the  respective  fiscal
                               quarters ending December 28, 1996, March 31, 1997
                               and June 28, 1997.
      (iii)                    Section 23(c) Not to permit its Total Liabilities
                               to  Tangible  Net Worth  Ratio on a  consolidated
                               basis to be greater  than that stated in the Bank
                               Plan for the respective  fiscal  quarters  ending
                               December  28,  1996;  March 31, 1997 and June 28,
                               1997.

This waiver and amendment is conditional upon the following:

      (i)     The Borrower will provide the Bank, within 15 calendars days of
              each month end with:

              (a)  evidence of compliance with the Margin Requirement, together
                   with  supporting  lists of  accounts  receivable  and  other
                   information as appropriate;
              (b)  consolidated,  rolling sales  forecast for the current fiscal
                   quarter;  
              (c)  interim  consolidated   financial  statements  with
                   comparisons to the previous fiscal quarter.

      (ii)    The Borrower  will pay to the Bank a risk premium  equal to 1% per
              annum,  calculated and payable  monthly in arrears,  of the amount
              committed  under  Segment 2(a) of the Credit  Facility,  until the
              earlier of Tangible  Net Worth  exceeding  US  $40,000,000  or the
              company  recording  net after tax profit of  $1,000,000 or more in
              any fiscal quarter.

      (iii)   Written  agreement to similar  terms and  conditions  by GDCL with
              respect  to a  credit  facility  extended  to GDCL  by the  Bank's
              subsidiary in London, England.

      (iv)  Suspension  of Segment (1) of the Credit  Facility  dealing with FEF
            Contracts.

This  letter  supersedes  and  cancels  our waiver and  amendment  letter  dated
November 6, 1996.

All other terms and conditions of the Agreement remain unchanged.

Please  confirm your  acceptance  by signing and  returning the enclosed copy of
this letter.

Yours truly,

BY:  s/L. J. (JIM) BLATTMAN
- ---------------------------

Jim Blattman
Senior Manager
Technology Banking Group