do
{
    if (!proc.HasExited)
    {
        proc.Refresh();
        if (proc.HasExited)
        {
            goto Finish;
        }
        if (proc.Responding)
        {
            Console.WriteLine("Process is responding...");
        }
        else
        {
            Console.WriteLine("Process is not responding...");
        }
    }
}
while (!proc.WaitForExit(500));
if (proc.HasExited)
{
    goto Finish;
}
Finish:;