So, what d’you do if you’re running XP Home edition and you need the security tab for setting permissions? It’s usually only available in XP Pro. Short answer – install XP Pro. Long and generally more helpful answer – read on.
http://www.dougknox.com/xp/tips/xp_home_sectab.htm this man tells you what you need to know. In short, Download the Microsoft Security Configuration Manager. Double click the SCESP4I.EXE file and extract the contents to a location on your hard disk. Locate the Setup.inf you just extracted file, right click it and select Install. Reboot your computer.