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Hotfix for Windows Media Format 11 SDK (KB929399). This software update for Windows Media Format 11 SDK addresses a problem that causes users to receive a message asking them to install the same software update repeatedly.
This problem occurs when the services try to synchronize metering data on a Windows XP-based or on a Windows Vista-based client computer that is running the Microsoft Windows Media Format 11 Software Development Kit (SDK). The system prompts you to download a security component update.