Register WMP's Preview Hander with the new media file types
I think that it would be a good idea for oggdfs to register WMP's Preview Hander with the new media file types (.flac, .ogg etc.) on Windows Vista and 7. This will allow the Preview Pane in Windows Explorer to work for these file types too, just like it already does for MP3 files, for example.
These registrations can also be made manually by using the Preview Handler Association Editor at http://blogs.msdn.com/b/toub/archive/2006/12/14/preview-handler-association-editor.aspx.