http://bugs.winehq.org/show_bug.cgi?id=36867
--- Comment #8 from Qian Hong fracting@gmail.com --- (In reply to Stefan Dösinger from comment #7)
I rebooted every time I changed the settings.
Ah, I see, maybe this help http://windows.microsoft.com/en-us/windows/change-system-locale#1TC=windows-...
Could you also check if changing 'language for non-Unicode programs/Change system locale' helps?
Cheers :)