Windows XP SP2 is consider expired and not supported by microsoft anymore as their office 2010 gonna require WinXP SP3 at least to run the newest office, GTA4 game is also require SP3 as well. Program such as Chinese Star is still needed by most of the user and WinXP SP3 is not working with it.
So i have made some little utility to change the XP Service Pack version on the fly. Just run the service pack version you want and restart. The WinXP version will change. 🙂