title: Why am I seeing multiple "The thread 0x22c8 has exited with code 259 (0x103)." messages
body: <p>I'm getting a slew of these messages in my Winforms application even though I never explicitly made any threads. Why is this happening? I've looked around for an explanation but it's hard to word an inquiry like this.</p>
  
  <p>I'm using Visual Studios 2013 and this is the debug output that I'm concerned about:</p>
  
  <pre><code>The thread 0x23a4 has exited with code 259 (0x103).
  The thread 0x2884 has exited with code 259 (0x103).
  The thread 0x27ec has exited with code 259 (0x103).
  The thread 0x1978 has exited with code 259 (0x103).
  The thread 0x1534 has exited with code 259 (0x103).
  The thread 0x1ad8 has exited with code 259 (0x103).
  The thread 0x2938 has exited with code 259 (0x103).
  The thread 0x22c8 has exited with code 259 (0x103).
  </code></pre>