Remove DRM from WMV files on Windows 7 Pro (RTM) with WMP 12

[marmo31]

Hello everybody,

I'm trying to remove the protection from some wmv files.
But i'm on Windows 7 professional RTM (so WMP 12.0.7600) and i have tried several program but there are many problems like :
- programs are not compatible
- video conversion is ok, but there is no sound (when i'm using Daniusoft Digital Media Converter)

There is no way to convert a wmv protected file on Windows 7 pro ?

Thanks in advance and sorry if there are some mistakes, i'm frenchman. (And not really good in english !)