[Bug 4322] winecfg Breaks if drive Z: not defined as / or users home

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4322

------- Additional Comments From [e-mail]  2006-20-01 01:35 -------
The problem here is as follows: The first time you start wine without having  
an .wine directory already, wineprefixcreate will create it for you. It will  
map drive Z: to '/'. When shell32.dll is registered during this process, it 
queries the HOME environment variable and maps the result to a DOS path, which 
would be something like 'Z:\home\joe'. Furthermore, it registers the path 
for the Desktop shell folder to 'Z:\home\joe\Desktop'. If you now remove 
the Z: drive afterwards, the Desktop shell folder's path doesn't exist any 
more and thus won't initialize any more. This is bad, since it is the entry 
point for all shell namespace stuff. Therefore, the file dialog and browsing 
on winecfg's drives tab is broken.

We have to implement some fallback code somewhere around 
shell32/shellpath/SHGetFolderPathW for the case that the desktop folder path 
doesn't exist. A save bet would probably be 'C:\windows\profiles\All 
Users\Desktop'.