Hi Jo.
Again! Beware of new wma files, ones you D/L, If you must D/L them,
Check them before opening them with Anti Virus Program,Spybot or whatever
If you have many good wma files VLC media player will play wma and most others inc.video files.It has the codec's built in and its Free.
Disable WMP and make VLC your defult player. Here's a link to VLC, choose nearest mirror site to you for D/L
http://www.videolan.org/vlc/
Any probs just shout.
Namaste,
Peace.