[Bug 57711] The 32-bit wpcap program has a stack leakage issue

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57711

--- Comment #3 from Hans Leidekker  ---
(In reply to mushu from comment #2)
> (In reply to Hans Leidekker from comment #1)
> > Created attachment 77914 [details]
> > patch
> >
> > Can you try this patch?
>
> This patch resolves the issue. Could you explain how this problem came
> about? Why do 32-bit and 64-bit programs exhibit different behaviors?

We used the wrong calling convention (CALLBACK maps to 32-bit only __stdcall).
It's ignored when building 64-bit, that's why it worked there.