02.25.2009 - Update for Microsoft Windows Media Player 11 (KB959772)

You cannot play content that is protected by Microsoft Windows Media Digital Rights Manager (WMDRM) in Microsoft Windows Media Player 11. Additionally, in the error message that appears, you are directed to a Microsoft Web site. This problem occurs after you perform one of the following actions: You upgrade Windows Media Player to Windows Media Player 11, You upgrade your operating system to Windows Vista. This problem occurs because the Certificate Revocation Lists (CRL) that are sent from the WMDRM server are not stored. Therefore, the client computer cannot play back the WMDRM content. - Download Update for Windows Media Player 11 - View Microsoft Knowledge Base Article - 959772 - Visit Microsoft Corporation