Microsoft Help Forums: Windows Media Player v11 won't start - Microsoft Help Forums

I am running Vista Home Premium & Media Player v11. There are 2 user
accounts that access the same Media Player in the file Program Files (x86).
In one account Media Player works just as it should. The other account
won't start Media Player when you click its icon nor will it start when you
double click on a song.

Is this a registry problem or what?