title: how can i run a custom action only in modify mode
body: <p>I need to run a custom action only in Modify mode. I tried below condition but it is running in both Modify mode as well as in Repair mode.</p>
  
  <p><code>
  Installed AND NOT REMOVE
  </code></p>
  
  <p>I am using Installshield 2012 spring.</p>