In this post, you’ll learn more about the Error Code 0xC00D2721L – NS_E_DRM_KEY_ERROR that is returned when working with the Win32 Windows Media Format 11 SDK
Win32 Windows Media Format 11 SDK Error
0xC00D2721L – NS_E_DRM_KEY_ERROR
Win32 Windows Media Format 11 SDK Description
A problem has occurred in the Digital Rights Management component. Contact Microsoft product support.