title: How do I customise the Wix Progress Dialog?
body: <p>I'm trying to customise the standard WiX Progress Dialog (I want to make it show the ActionData). I've followed <a href="http://neilsleightholm.blogspot.com/2008/08/customised-uis-for-wix.html" rel="noreferrer">Neil's guide to customising dialogs</a> but the trouble is, the original ProgressDlg is still being shown instead of mine.</p>
  
  <p>I think I know why: if you look at the <a href="http://wix.cvs.sourceforge.net/viewvc/wix/wix/src/ext/UIExtension/wixlib/ProgressDlg.wxs" rel="noreferrer">source to ProgressDlg</a> you can see this block of code:</p>
  
  <pre><code>   &lt;InstallUISequence&gt;
      &lt;Show Dialog="ProgressDlg" Before="ExecuteAction" /&gt;
    &lt;/InstallUISequence&gt;
  </code></pre>
  
  <p>So rather than being published by another dialog, as most dialogs are, it is being triggered directly as part of the <strong>InstallUISequence</strong>. So how do I override this?</p>