any yes, I'm using WINEPREFIX=~/.wine_test in this case - the prefix is entirely clean, I only installed vcrun2010 via winetricks and changed the dll via winecfg. I don't think they are usefull, but I'll provide them anyways: Distribution: Gentoo Wine: emerged 1.3.6 and hand-compiled 1.3.7 (unpatched ofc) in Terms of THIS problem the result is the same with both versions. Kernel: 2.6.36 (hand configured ofc)