EXHIBIT 99.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION
906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Progress Software
Corporation (the Company) for the year ended November 30, 2002, as filed with
the Securities and Exchange Commission on the date hereof (the Report), each of
the undersigned, Joseph W. Alsop, Chief Executive Officer, and Norman R.
Robertson, Senior Vice President, Finance and Administration and Chief Financial
Officer, of the Company, certifies, to the best knowledge and belief of the
signatory, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section
906 of the Sarbanes-Oxley Act of 2002, that:

    1.  The Report fully complies with the requirements of Section 13(a) or
        15(d) of the Securities Exchange Act of 1934; and

    2.  The information contained in the Report fairly presents, in all
        material respects, the financial condition and results of operations of
        the Company.

/s/ JOSEPH W. ALSOP                          /s/ NORMAN R. ROBERTSON
-----------------------                      ----------------------------------
Chief Executive Officer                      Senior Vice President, Finance and
                                             Administration and Chief Financial
                                             Officer

Date: February 14, 2003                      Date: February 14, 2003