function URL(Service: string): String; var
ClDDE: TDDEClientConv;
temp:PChar; begin
Result := '';
ClDDE:= TDDEClientConv.Create( nil ); with ClDDE do begin
SetLink(Service,'WWW_GetWindowInfo');
temp := RequestData('0xFFFFFFFF');
Result := StrPas(temp);
StrDispose(temp);
CloseLink; end;
ClDDE.Free; end;
procedure TForm1.Button1Click(Sender: TObject); begin
ShowMessage(URL('IExplore')); end;