http://bugs.winehq.org/show_bug.cgi?id=25690
--- Comment #5 from Andrew Nguyen arethusa26@gmail.com 2011-01-10 19:06:29 CST --- Created an attachment (id=32808) --> (http://bugs.winehq.org/attachment.cgi?id=32808) advapi32: Only attempt multibyte conversion when ptstrName is a string.
Please try this patch.