title: Change the default installation folder programmatically for setup
body: <p>In a standard Setup project for a WinForms app I would like to <strong>programmatically</strong> change the default installation folder (i.e. do this when the installation happens).</p>
  
  <p>Is there a way to do this? I thought using a custom Installer class might hep me with this but it seems by the time it gets to any custom actions in that class, the install folder has already been selected.</p>