Disabling the "Just enable file sharing" on XP

Hi,

I took the following steps as described on this web page to enable
file sharing on my computer.

http://techrepublic.com.com/5100-6270-1054837-1.html

Just as on Figure B, I clicked the "Just enable file Sharing" option.

However, I now with to go back to this File Sharing being disabled.
This is because I will be sharing a broadband Internet connection soon
so I'd rather take the "Use the wizard to enable file sharing
(recommended)" option.

I've been searching all other the internet and I only find ways of
disabling SIMPLE file sharing, but this doesn't allow my computer to
go back to the way it was before I chose the "Just enable file
Sharing" option.

So that is my problem, how do I revert back to disabling "File
Sharing"?

Thanks in advance,
Ess