EXHIBIT 16.1 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 March 7, 2002 Dear Sir/Madam: We have read the first four paragraphs of Item 4 included in the Form 8-K of I-many, Inc. dated May 15, 2002, to be filed with the Securities and Exchange Commission, and we are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen LLP ----------------------- ARTHUR Andersen LLP cc: Mr. Kevin Collins, I-many, Inc.