http://stackoverflow.com/questions/1664683/how-to-prevent-program-may-have-been-uninstalled-message-in-vistahere is another description about this issue
I has the same problem in Vista/Win 7.Although there are some ole posts about this issue in IS12 /IS2009 forum(KEYWORD is ARP 、 Vista、reboot、 error message、uninstall), butI can't find any solution or hint. Anyone could tell me how to solve this issu...