x64 Components addon (100% free). MKV playback is fully supported in x64 Media Center on all versions of Windows.
To setup FLAC audio playback in Windows Media Center you must initially select the x64 WMP as the default player. For Windows 7 Media Center users, this can be set back to the 32bit afterwards.
- update Gabests filters 1330
- update ffdshow 3126
- Windows 7 SWAP inprovements
Product page: here