https://bugs.winehq.org/show_bug.cgi?id=49162
--- Comment #6 from Dmitry Timoshkov dmitry@baikal.ru --- (In reply to Zebediah Figura from comment #5)
Actually, on further reflection I'm not even sure there is a good way to fix this while retaining compatibility. The problem is, unless I've made a mistake while testing, the wire format for 32-bit and 64-bit values is different. If we change the behaviour of widl or rpcrt4, we break programs (assuming there are any) depending on those working within one bitness.
Apparently this works in some way under Windows.