http://bugs.winehq.org/show_bug.cgi?id=32699
--- Comment #4 from Vincent Povirk madewokherd@gmail.com 2013-05-28 12:21:52 CDT --- AppUserModelID is the way to go in the long run, but it requires some missing architecture (which I've been slowly working on implementing). And to really match Windows, we'd have to generate .desktop files on demand for running programs. Of course, the .exe bit could be done without any of the new architecture.