Windows Media Foundation file source and decoder for FLAC format.
Appears to be working great on my Windows 7 machine - Windows Media Player can now play Flacs. However, the contributing artists don't appear in explorer or in the properties window for flac files - it is listed as the album artist instead.
Installed fine, tags are visible in Explorer. I was missing this for the past 10 years.
Let me view FLAC metadata in Win7 Explorer. Success!