nWindows 3.1, Windows 3.11, Windows 95/98, Windows NT, and Windows 2000 can all exist on the same system as Windows XP
nWhen Windows XP is to be installed on a system with another operating system—especially some previous version of Windows—it is important to specify a different installation partition
nIf you plan to use applications from the different versions of Windows you have installed, you must install the application from each operating system