<PAGE>

                                                                    EXHIBIT 32.1

               STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE
               SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350

         The undersigned, George C. Platt, is the President and Chief Executive
Officer of ViewCast.com, Inc. (the "Company"). This statement is being furnished
in connection with the filing by the Company of the Company's Annual Report on
Form 10-K for the year ended December 31, 2003 (the "Report").

         By execution of this statement, I certify that:

         (A)      the Report fully complies with the requirements of Section
                  13(a) or 15(d) of the Securities Exchange Act of 1934 (15
                  U.S.C. 78m(a) or 78o(d)) and

         (B)      the information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Company as of the dates and for the periods
                  covered by the Report.

         This statement is authorized to be attached as an exhibit to the Report
so that this statement will accompany the Report at such time as the Report is
filed with the Securities and Exchange Commission, pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. It is not intended that
this statement be deemed to be filed for purposes of the Securities Exchange Act
of 1934, as amended.

         A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission or its staff upon request.



March 30, 2004               /s/ George C. Platt
--------------               -------------------------------------
    Date                     George C. Platt
                             President and Chief Executive Officer

<PAGE>

                                                                    EXHIBIT 32.1

               STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE
               SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350

         The undersigned, Laurie L. Latham, is the Chief Financial Officer of
ViewCast.com, Inc. (the "Company"). This statement is being furnished in
connection with the filing by the Company of the Company's Annual Report on Form
10-K for the Year ended December 31, 2003 (the "Report").

         By execution of this statement, I certify that:

         (A)      the Report fully complies with the requirements of Section
                  13(a) or 15(d) of the Securities Exchange Act of 1934 (15
                  U.S.C. 78m(a) or 78o(d)) and

         (B)      the information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Company as of the dates and for the periods
                  covered by the Report.

         This statement is authorized to be attached as an exhibit to the Report
so that this statement will accompany the Report at such time as the Report is
filed with the Securities and Exchange Commission, pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. It is not intended that
this statement be deemed to be filed for purposes of the Securities Exchange Act
of 1934, as amended.

         A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission or its staff upon request.


March 30, 2004             /s/ Laurie L. Latham
--------------             -----------------------
    Date                   Laurie L. Latham
                           Chief Financial Officer