title: Using windows environment variables as registry values in Visual Studio Installer
body: <p>Hey, i want to use windows environment variables as value for a registry entry. Unfortunately i can not simply write sth like <code>%systemroot%\system32\MyScreensaver.scr</code>.</p>
  
  <p>As you can guess, i want to point some reg values to my own app, such as the auto start and screensaver and some other things.</p>
  
  <p>Any ideas?</p>