Please, can someone try it? Create 2 empty text files: "c:\test\aaa.txt" "c:\test aaa\aaa.txt" Now open wine explorer, go to "c:\test aaa" and doubleclick aaa.txt. It should open another explorer window instead of opening the file in notepad. Looks like existence of "c:\test\" somehow prevents normal shell open in other folders in "C:\" which start with "test ". wine-1.1.35