title: Icon Overlay Handler for multiple icons
body: <p>How to implement Icon Overlay Handler that can handle custom icons for custom files.</p>
  
  <p>For example:</p>
  
  <pre><code>foo.bar - d:\myicon1.ico
  bar.bar - d:\myicon2.ico
  </code></pre>
  
  <p>I tried used <code>IShellIconOverlayIdentifier</code> but it's uses as <code>one handler for one icon</code></p>