title: Changing Wallpaper with a batch file, on program close. Possible?
body: <p>I'm trying to create a batch file that will change my background when a program closes on Windows 7. I've tried using this, but it doesn't work, even when I log off and log back in:</p>
  
  <pre><code>@echo off
  reg /add HKCU\Control Panel\Desktop\WallPaper /v wallpaper /t REG_SZ /d c:\images\wallpaper.bmp
  </code></pre>