Hello,
shlwapi.pp defines:
procedure SetProcessReference( punk:IUnknown);stdcall;external SHLWAPIDLL name 'SetProcessReference';
function GetProcessReference(punk:IUnknown):HRESULT;stdcall;external SHLWAPIDLL name 'GetProcessReference';
Neither of those 2 functions exists in shlwapi.dll
In Win 10 and 11, they are located in shcore.dll, in versions of Windows where there is no shcore.dll, I do not know where and if those functions are implemented but, they are _not_ in shlwapi (as declared in shlwapi.pp)
Just FYI, in the C headers the function is declared in shlwapi.h but, in C that does not mean anything since it does not specify the dll where it is implemented.
If a Pascal program uses those definitions in shlwapi.pp, it would fail to load. (Disclaimer: I didn't take the time to test this but, that's what should happen.)
HTH.