http://bugs.winehq.org/show_bug.cgi?id=13838
--- Comment #25 from max@veneto.com 2008-07-02 17:26:56 --- Another finding... The problem arises from the case-sensitivity of properties. In dlls/msi/package.c, the properties 'LocalAppDataFolder' and 'AppDataFolder' are initialized to corresponding register values WITH the trailing backslash.
AutoCAD installer OTOH looks for the properties CAPITALIZED, so 'LOCALAPPDATAFOLDER' and 'APPDATAFOLDER' which are initialized (don't know where yet) as corresponding registry values WITHOUT trailing backslash.
I guess it's a bug in Acad installer, but I guess M% returns the capitalized properties with backslash too, as uncapitalized ones, so the installer just appends 'Autodesk' to returned path. In wine, the resulting path misses the backslash between the returned property and the word 'Autodesk'.
Max