http://bugs.winehq.org/show_bug.cgi?id=19588
--- Comment #6 from Ben Peddell klightspeed@netspace.net.au 2009-11-17 02:53:19 --- Created an attachment (id=24798) --> (http://bugs.winehq.org/attachment.cgi?id=24798) Take into account owner groups in server/file.c::sd_to_mode()
Does this patch solve this issue? It should apply to any wine source since 0.9.49 (November 2007).
Is it possible to trace the permission changing with `WINEDEBUG=+advapi32`?