The patch below fixes the bug for me, but if the program is functional further i wouldn't know ( and i doubt, but you could always test further) diff --git a/dlls/mapi32/mapi32_main.c b/dlls/mapi32/mapi32_main.c index 936d435..5aace9a 100644 --- a/dlls/mapi32/mapi32_main.c +++ b/dlls/mapi32/mapi32_main.c @@ -109,6 +109,7 @@ HRESULT WINAPI MAPILogonEx(ULONG_PTR uiparam, LPWSTR profile { FIXME("(0x%08lx %s %p 0x%08x %p) Stub\n", uiparam, debugstr_w(profile), password, flags, session); + *session=0; return SUCCESS_SUCCESS; }