title: custom action on install only
body: <p>I have set a custom action to be triggered on installation only</p>
  
  <pre><code>&lt;InstallExecuteSequence&gt;
     &lt;Custom Action="caPopulateDatabase" Before="InstallFiles"&gt;NOT INSTALLED AND NOT UPGRADINGPRODUCTCODE&lt;/Custom&gt;
  &lt;/InstallExecuteSequence&gt;
  </code></pre>
  
  <p>For some reason, that custom action triggered during uninstall as well.</p>
  
  <p>What am I doing wrong?</p>