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.