I travel with a notebook running XP Media center and use Zone
Alarm's free firewall software.
In hotels, to check my email, do I have to do anything else for
safety?
How about File and Print sharing? Is it necessary to disable that
and if so how do I do it?
File and Print sharing should be disabled when you travel - even if you only
have it enabled for your own provate network at home (because each network
you connect to becomes your private network when you travel. heh.)
Personally - I always utilize my jobs VPN connection at all times when I
travel. Not all hotels can accomodate VPN connections - in those cases, I
utilize my blackberry as a modem and connect to the Internet in that way or
actually dial-up (in last-ditch-effort cases.)
I don't personally use any third party firewalls on my system, but I do
change the firewall to "no exceptions" while traveling and actually only
usually use the laptop (even while connected behind VPN, etc) to do the
simplest of browsing and/or as the remote desktop client to connect to a
remote machine of mine and do all my work on that remote machine (nothing
critical is stored on my laptop for security.)