http://bugs.winehq.org/show_bug.cgi?id=17403
--- Comment #7 from diafero@arcor.de 2009-11-04 10:37:26 --- If I replace the builtin winmm.dll file with a native one and tell winecfg to actually use that native dll file, sound decompression works perfectly (the md5sums of the files created on Windows and the ones created on Wine are the same). However, I have to switch back to the builtin winmm.dll to actually get any sound in the game. Obviously, the problem is somewhere in winmm.