http://bugs.winehq.org/show_bug.cgi?id=19352
--- Comment #2 from Louis Lenders xerox_xerox2000@yahoo.co.uk 2009-10-24 14:57:42 --- Created an attachment (id=24326) --> (http://bugs.winehq.org/attachment.cgi?id=24326) testcase
A little test (attached) shows windows sets last error to ERROR_MR_MID_NOT_FOUND
That fixes the bug as well. So obvious the last error in wine's code is wrong