http://bugs.winehq.org/show_bug.cgi?id=16204
--- Comment #7 from Dmitry Timoshkov dmitry@codeweavers.com 2008-11-27 01:35:06 --- Read http://msdn.microsoft.com/en-us/library/aa741220(VS.85).aspx about the MIME database. The MIME database in the registry is obsolete, and might be incomplete or missing completely.