The fake xlive.dll will no longer be installed if Fallout 3 v1.0 is detected as it causes the game to freeze on exit.
When G4WL is disabled any DLC's you have will cease to function so use the "Move DLC's" button to get your DLC's working again.
If you disable Games for Windows LIVE and actually use it then all your saves will disappear, you can find them in your \My Documents\My Games\Fallout3\Saves\ simply move them to the Saves folder.
This will work with Fallout 3 v1.1 or higher.
Allow you to move all of your DLC's out of their "hidden" G4WL folder and into your Fallout 3 folder.
Allow you to bind the "Home" key to whatever action you want.