The Windows Media Video 9 VCM codec enables encoding enthusiasts who use legacy versions of video-editing applications to encode and decode Windows Media Video 9-based content using file containers such as AVI.

The Windows Media Video 9 VCM codec enables users of Windows Media Player 6.4 to play Windows Media Video 9-based content, in both ASF and AVI file containers.

The Windows Media Audio and Video 9 Series codecs offer the best experience when delivered using the ASF file container. To offer the flexibility our customers have asked for, new licensing terms allow for these codecs to be used in other file containers as well. Once installed, legacy solutions will automatically be able to use the codec via the VCM interface. The VCM includes a property page so that users can set encoding parameters. This release has been tested using Windows 98SE, Windows Millennium, Windows NT 4.0, Windows 2000, and Windows XP.