title: WIX - Start programm after rollback
body: <p>I have an WIX-Installer. In case an error appears during an update installation, a rollback script is executed.</p>
  <p>I want to restart the program after the rollback is finished.</p>
  <p>I tried using <code>CustomActions</code>, but I think it is not possible to execute them after the <code>rollback</code> is finished and the files from the backup are back in there folders.</p>
  <p>Does some one have an idea how to achieve that?</p>