http://blogs.iis.net/dmnelson/archive/2009/05/04/using-windows-media-player-playlist-files-in-web-playlists.aspxWeb Playlists , an IIS Media Services extension for IIS 7.0, includes an Import ASX Playlist feature that you can use to create server-side playlist copies of your client-side Windows Media Player playlist files. For large playlists, this feature providesenCommunityServer 2007 SP1 (Build: 20510.895)