win_user

Hello, I am familiar with the use of OOBE.XML in Vista that enables customizing the Windows Welcome Center and wallpaper etc during Vista Preinstallation process. I would like to know if this is possible post-OS via APIs, modifying the OOBE XML file i.e. Once vista is installed, I would like to run my application that will provide the user the mechanism to select the path to the custom wallpaper and set it through my application. Thanks