Application.Exit not work on startup with window
<p>I'm writing an app. on Form_load I create a process and run it, send to main form of process 2 message and try to use following methods to end my app:</p>

<pre><code>this.Dispose();
Application.Exit();
Environment.Exit(0);
Application.ExitThread();
</code></pre>

<p>I have two mode to run it, start together with window and normal(not start when window startup)
But it don't work when it run on startup with window(in normal it's work).
Pls help me.</p>
