On 2/26/19 6:38 AM, Jacek Caban wrote: > + if (sizeof(void *) != 4) /* avoid dealing with fastcall */ > + { > + ObfReferenceObject(obj1); > + ObDereferenceObject(obj1); > + } The tests aren't going to run on 64-bit Windows, so it may be worth just adding fastcall thunks like we have in kernel32:sync.