Allows you to render your Render Queue in the background while you can continue working in After Effects. The pro version can also notify you via email, sms or iPhone push notification when your renders are done or have an error plus many other new features.

Will render all the items in your render queue, send you an email to let you know the render is done, save an incremental version of your project and shutdown the machine. On Mac you can choose to have the machine sleep instead of shutdown.