Request: Need someone to program an FSX RTM <-> SP1 switcher

A graphical tool to switch between FSX RTM and SP1 would be really useful. One that replaces the fsx.exe and all associated DLLS (graphics and scenery fixes may remain in place). And maybe the fsx.cfg should be swapped out with the specific version's config file as well. Any takers for this project? I am already busy doing other fun stuff ;)The RTM and SP1 versions would have to be put into a backup folder right after a fresh installation from DVD before and after applying the SP1. The utility would just swap between the two versions.Christian