Hi
I actually fixed this problem while writing this, fix at the bottom!
I have got Windows 7 Ultimate installed on a laptop. Everything works fine except for Media Player 12. I have two log ons, one for me (Admin rights) and one for the kids (standard user). They kids can open Media player...
MP 12 will not play anything, MP3's or Windows Media Video. I even tried to play one of the samples that come with Media player 12 and I still get this error:
Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to...