http://bugs.winehq.org/show_bug.cgi?id=27834
--- Comment #5 from Hans Leidekker hans@meelstraat.net 2011-08-09 04:46:47 CDT --- Created an attachment (id=35894) --> (http://bugs.winehq.org/attachment.cgi?id=35894) msi: Resolve all directory roots.
Try this patch.