on Xp goto Add\Remove programs in control Panel, click on add remove windows component in the left pane. wait for few seconds till the list gets populated then look for IIS or Internet Information service select it and click next. The installation wizard will ask you for winXP cd, provide the path of ur WinXP CD n IIS will get installed on your machin in few minutes and then u can manage it using IIS managment console inside Control Panel>Administration Tools>IIS