http://bugs.winehq.org/show_bug.cgi?id=20847
--- Comment #19 from Chiitoo escomk3@hotmail.com 2013-10-02 17:48:58 CDT --- Many thanks!
I can't say for this particular app, but from a quick look-see, it looks like it's fixed for FINAL FANTASY XI Online (test-server client).
gokuro~