title: How to automatically uninstall DirectX 9?
body: <p>I am putting together a WiX installer that includes silently installing DirectX 9:</p>
  
  <pre><code>dxsetup.exe /silent
  </code></pre>
  
  <p>How do I tell WiX how to un-install DirectX? Is there another switch on the command line?</p>
  
  <p>I need to be able to configure the installer to un-install DirectX automatically, else users complain if they can't uninstall.</p>