I have an older computer, Compaq Presario 4770 with a Pentium 200 processor, 32 MB RAM, running Windows 98. I am looking for FREE firewall and antivirus programs that will run on my system. I have tried Avast, AVG, and Zone Alarm, but they all require a faster processor and won't work properly. I cannot afford upgrading or buying new. Does anyone have any suggestions on what I can try?