are two kinds of people:
"Those that make regular backup and those that will"
anybody know who made that great quote?)
Although Windows XP comes with a firewall, I find it practically
useles, because it installs services that can make your computer more
vunerable to attack. I recomend Zone Alarm available for free from
http://www.zonelabs.com I have
been using the free version for years and it has proven itself to
be very effective. It requires a bit of attention for the first couple
of weeks while it prompts you with the question "Do you want
"this service" to access the internet?" To which you
mostly reply yes. However, you will be surprised to learn that your
computer often wants to act as a server and you almost always want
to prevent that. Zone Alarm also make your computer invisible to the
most hacker scans.