http://bugs.winehq.org/show_bug.cgi?id=17055
--- Comment #13 from Reece Dunn msclrhd@gmail.com 2010-05-03 16:41:12 --- There was a discussion on the mailing list about this. AJ said that the menu would break if wine moved and that this should be handled by the desktop environment -- listing alternatives to the user if present.
I haven't pursued this further; it is probably in the "won't fix" category, as noted above.