exceptproc being called windows

i am now perplexing emanate an difference handler built windows use that, an unhandled exception, sends summary another program. i have built slight gotten communication working, nonetheless seems each way throws error, (i have lift formula force it.) windows catches instead handler isn't called. anyone explain i am doing wrong?.

simplified formula explain:

procedure unhandled();
  begin
    lift exception.create('unhandled');
  end;

procedure exceptionhandler(exceptobject: tobject; exceptaddr: pointer);
  begin
    writeln('display: ' + exception(exceptobject).message);
    //send summary here
  end;

i formula run it:

writeln('starting');    

exceptproc := @exceptionhandler;    

unhandled();

i design cost be:

starting

display: unhandled

but does display:

starting

then windows advantage management prompt after 5 seconds.

why isn't handler being morally called?

p.s. i've controlling tests console app testing.

edit:

here's some-more information:

apparently have an indifferent exceptproc, your way shouldn't pitch normal runtime 217 error. i'm guessing windows catching, i however, way throwing runtime error, i can't an errorproc locate either.