Windows DRM video patch

If you're using Amazon Unbox or any other application that uses Windows DRM for video (including Windows Media Player), then you may want this patch. The key symptom: your application crashes when you try to play a DRM-protected video. Note that it doesn't necessarily happen when you play any video; it could be only specific videos. For me, it was only episodes from Season 11 of South Park (available uncensored on Unbox) that triggered the bug for me. Odd, but this patch fixed it completely. Microsoft Support: When you use an application to play DRM-protected video content in Windows XP, the application may fail