Убиваем активное приложение

procedure KillProgram(Classname: string; WindowTitle: string);
const
  PROCESS_TERMINATE = $0001;
var
  ProcessHandle : THandle;
  ProcessID: Integer;
  TheWindow : HWND;
begin
  TheWindow := FindWindow(Classname, WindowTitle);
  GetWindowThreadProcessID(TheWindow, @ProcessID);
  ProcessHandle := OpenProcess(PROCESS_TERMINATE, FALSE, ProcessId);
  TerminateProcess(ProcessHandle,4);
end;