.asx. See announcements
.MSProducer. See Microsoft Producer
.MSProducerZ. See Microsoft Producer
.nsc. See multicast information files
.wax. See announcements; playlists
.wma. See Windows Media Audio
.wmd. See Windows Media Download Package
.wmv. See Windows Media Video
.wvx. See announcements; playlists
.zip. See compressing content