password-protecting network shares

From: Ryan (scooter1011_86@yahoo.com)
Date: 03/31/03 

From: "Ryan" <scooter1011_86@yahoo.com>
Date: Sun, 30 Mar 2003 16:24:55 -0800

hi,
i have windows XP pro.
i was wondering how you put a password on your somputer
so that when people go and try to access your computer
from the network, a lil password box pops up. so that you
can't even see what i have shared without entering a
password

thanx