How to play WMV files on Raspberry Pi 3 using Raspbian?
You can use omxplayer to play .wmv files.
omxplayer is command-line only. If you want a GUI , try omxplayerGUI. Some .wmv files may contain VC-1 video. You need to buy a license for those files since omxplayer uses hardware decoding. You can buy the license here. You can check your files with a tool like MediaInfo to see if they really contain VC-1 video . This might not be true of all .wmv files.