A program called Fairuse4wm has been posted on the net and is apparently capable of breaching Microsoft's Digital Rights Management (DRM) system.

FairUse4WM is a GUI version of drmdbg that supports individualization version .3930 and some WM11 versions.

Basic requirements
1. Only works on individualized DRM file
2. Requires WM10 or WM11. Won't work on WM9.