Can't take screenshots of video content in WMP as the video image comes directly from the CPU, not from within the WMP programme Infact you can't do it in anything that doesn't have a "capture" feature - like WinDVD or VLC....

VLC plays pretty much most things, but as said, a decent codec pack (like the K-Lite one) is a must to get the best out of everything...

Then go to your file type associations and set all the movie/video files to open with VLC and you're sorted