OSS Video Decompiler
http://www.mediasoftzone.com/OSS-Video-ecompiler.html
BPS Video Converter & Decompiler
http://www.mediasoftzone.com/BPS-Video-Converter-&-decompiler.html
both of the above can extract the individual image frames of the video files,and I'm sure it works for WMA formats,have a try!
best,
WinXp.
I have received a file from a friend of mine which has a wmv extension. I would like to save some of the photographs of this slide-show file on a different folder----how it could be done.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic