ULTIMATE CONFIGURATION TOOL (Professional Edition only)

One of the most full featured Windows XP configuration tools available is hidden right there in your system, but most people don't even know it exists. It's called the Local Group Policy Editor, or gpedit for short. To invoke this editor, select Start and then Run, then type the following:

gpedit.msc

After you hit ENTER, you'll be greeted by gpedit, which lets you modify virtually every feature in Windows XP without having to resort to regedit.

Expand all & check out for yourself......You can enable or disable just any "any" kind of feature in your windows system.....no need to edit the registry.
From disabling Logoff(not even using any method, including programs run from the command line, such as scripts.) .....to......configuring network connections,ip configuration....

Dig around and enjoy!...I'm sure you'll never regret this..