title: Where can I learn about the "shell:" URI?
body: <p>I just realised there is a <code>shell:</code> URI, but every search engine seems to think <strong><em>shell:</em></strong> and <strong><em>shell</em></strong> are the same thing.</p>
  
  <p>The only thing I've found out is that you can type <code>shell:startup</code> right in explorer (XP &amp; 7 tested) for obvious effects.<br>
  This is good already because there is no <code>%startup%</code>, but I want to know what else is this capable of.</p>
  
  <p>Is there any MS reference on this?<br>
  <strong>EDIT</strong> (even if it's not on MSDN)</p>