NIS 2010 and Stuxnet worm

I run Windows XP and Nortin Internet Security 2010.

 

I'm following the Symantec Security Response for removing the W32.Stuxnet worm. It recommends that I disable "file sharing." Windows wants me to do that through Windows Firewall. But NIS wants me to disable Windows Firewall and use NIS exclusively.

 

So how do I configure NIS to block file sharing?