About Windows Media Format 9 Serial Runtime

You may be in trouble in opening and converting WMV and WMA files, if you do not have Windows Media Player 10. The reason is Windows
Media Format 9 Serial Runtime is necessary for WMV, WMA encoding and decoding. So, if you meet the trouble, please download Windows
Media Format 9 Serial Runtime setup file (3.87MB) install it.

Click here to download Windows Media Format 9 Serial Runtime (wmfdist.exe)

Information of WMA and WMV (From Microsoft.com)

Windows Media Audio (.wma)

Windows Media Video (.wmv, .wm)

Windows Media Video (.wmv) files are Advanced Systems Format (.asf) files that include audio, video, or both compressed with Windows
Media Audio (WMA) and Windows Media Video (WMV) codecs. By using a separate extension, you can install multiple players on your computer
and associate certain players with the .wmv extension for playback of audio and video sources.

If you need to know more information about this package, please click here to visit Microsoft.com