Windows Media Player 10 Plug-in to allow other tag support than default (APE, FLAC, Vorbis...), thus allowing inserting and editing of APE, MPC, WavPack, OptimFrog, FLAC, OGG, MP4, M4A, AAC and more in WMP.
Note: WMP Tag Support Extender isn't being actively developed or supported anymore. Therefore, it is highly recommended that you download a newer tag support plug-in instead, such as WMP Tag Plus. WMP Tag Plus is fully compatible with the latest versions of Windows Media Player and Windows. It also offers more features, like support for seeking and for the Advanced Tag Editor: