http://bugs.winehq.org/show_bug.cgi?id=32973
--- Comment #24 from Henri Verbeet hverbeet@gmail.com --- (In reply to mactrix from comment #22)
Ok, I was able to edit the registry within Wineskin exactly like you described
REG_BINARY is not the same as REG_DWORD. Also, note that Wineskin is not supported here, although I doubt it causes this particular issue.