I run both the windows firewall and ZoneAlarm and it works fine for me with
Windows XP (SP2). I don't believe the advice to the contrary. The only
problem is I had to enter my ftp client as an exception in windows firewall,
which was easy. If there's a performance or resource drain, I don't notice
it, so it can't be large. I believe two is better than one. If one fails,
for whatever reason, the other provides a backup.
I checked out your software SiSoftware recommendation and prefer the Everest
utility instead - more concise, better organized, and 100% free. For example
if I want to see the various temperatures inside my computer case, Everest
has them all listed in one place (sensor). The Sandra Lite software did let
me know that one of my hard drives had "silent mode" activated, so I changed
that. Otherwise their recommendations for system performance were over my
head technically. I couldn't understand them nor the benchmarks etc. If I
wanted to devote my life to reading about such things, I guess I would
understand more. As for the disabled modules in the Lite version, who cares?
I don't. I'll uninstall Sandra Lite because I won't use it further, and
definitely wouldn't pay a penny for the commercial version (more modules).