"Steve said:
You're welcome, Sam.
Your router acts as a firewall, preventing other Internet users from
accessing your computers. Running the Windows Firewall (or a
non-Microsoft firewall program) adds a second layer of protection.
It's safe for you to enable File and Printer Sharing.
Sam, I missed what you said about connecting outside systems to your
router. Since you do that, I can see why you might want to disable
file and printer sharing. How do you protect your wife's computer
from the outsiders?
My solution to that problem is to use three routers to create two
independent, isolated networks. The first router connects to the
cable modem and feeds the second and third routers. I connect my own,
trusted computers to the second router. I connect other, untrusted
computers to the third router. All of the computers have Internet
access, but the untrusted computers can't access my computers (and
vice versa).
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)
Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.
Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com