You need these DLLs
http://www1.mplayerh...eleases/codecs/wma9dmod.dll (File version: 9.0.0.2926) 409,720 bytes
wmadmod.dll (File version: 9.0.0.2926) 410,216 bytes
wmspdmod.dll (File version: 9.0.0.2926) 486,504 bytes
wmv9dmod.dll (File version: 9.0.0.2926) 807,032 bytes
wmvdmod.dll (File version: 9.0.0.2926) 807,528 bytes
Try to play them off your HD too, just to test