https://bugs.winehq.org/show_bug.cgi?id=34730
--- Comment #21 from Alexandre Julliard julliard@winehq.org --- As far as I can tell, the only thing you cannot do is run a command with no extension without adding '.' to PATHEXT first. This is the way it works on Windows too. Are there still other cases where running a Unix command fails, but running a binary of the same name would work on Windows?