EXHIBIT 99.2 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. SECTION 1350) I, Brian V. Turner, Senior Vice President, Finance and Operations, Chief Financial Officer and Treasurer of RealNetworks, Inc., certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of RealNetworks, Inc. on Form 10-Q for the fiscal quarter ended September 30, 2002 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of RealNetworks, Inc. Date: November 14, 2002 By: /s/ Brian V. Turner --------------------------------------- Name: Brian V. Turner Title: Senior Vice President, Finance and Operations, Chief Financial Officer and Treasurer