title: Add browser action button in internet explorer BHO
body: <p>So. I'm working on a BHO in IE and I want to add a <a href="http://developer.chrome.com/extensions/browserAction.html" rel="noreferrer">browser action</a> like this:</p>
  
  <p><img src="https://i.stack.imgur.com/LoZV7.png" alt="enter image description here"></p>
  
  <p>In internet explorer it would look something like </p>
  
  <p><img src="https://i.stack.imgur.com/wOtBo.png" alt="enter image description here"></p>
  
  <p>The only tutorials and docs I've found were on creating toolbar items. None mentioned this option. I know this is possible because crossrider let you do this exact thing. I just don't know how.</p>
  
  <p>I can't find any documentation on how I would implement this in a BHO. Any pointers are very welcome. </p>
  
  <p>I tagged this with C# as a C# solution would probably be simpler but a C++ solution, or any other solution that works is also very welcome.</p>