ULONG PerformAction (PCHAR WR Out, INT Len, PCHAR In, ULONG Rq_flags)
{
  ULONG Result = SysPerformAction (Out, Len, In, Rq_flags);

  if (Result == NO_ERROR)
  {
    PrintString ("All done." "\n");
  }
  else 
  {
    HandleError (Result);
  }

  return Result;
}