All Internet security and firewall

The Bottom Line: ZoneAlarm Pro 4.5 is a great firewall for security rookies, but you'll still need a separate antivirus program.

Specs: 1 user, Complete package, Microsoft Windows XP, Microsoft Windows 2000 Professional, Microsoft Windows 98 Second Edition, Microsoft Windows Millennium Edition, 10 MB, Pentium II 300 MHz, 128 MB, 4, CD-ROM, Pentium II, 300 MHz, Windows

The Bottom Line: Norton Personal Firewall 2004 does the job, but free ZoneAlarm and the beefier Norton Internet Security 2004 are smarter buys.

Specs: 1 user, Complete package, Microsoft Windows 98, Microsoft Windows XP Home Edition, Microsoft Windows XP Professional, Microsoft Windows 2000 Professional, Microsoft Windows Millennium Edition, 35 MB, 300 MHz, 128 MB, CD-ROM, 300 MHz, Windows

The Bottom Line: As an upgrade, Norton Internet Security 2003 is a solid package for the price. However, you can expect to pay a lot for technical support.

Specs: 1 user, Complete package, Microsoft Windows 98, Microsoft Windows XP Home Edition, Microsoft Windows XP Professional, Microsoft Windows 2000 Professional, Microsoft Windows Millennium Edition, 60 MB, Pentium II 300 MHz, 128 MB, CD-ROM, Pentium II, 300 MHz, Windows

Specs: 1 user, Complete package, CD-ROM, Windows

Specs: 1 user, Complete package, Windows

Specs: 25 users, Complete package, 11, CD-ROM, Windows

Specs: 3 PC in one household, Complete package, Microsoft Windows 7 Starter, Microsoft Windows 7 Ultimate, Microsoft Windows 7 Home Basic, Microsoft Windows Vista Starter, Microsoft Windows 7 Home Premium, Microsoft Windows 7 Professional, Microsoft Windows Vista Business SP1, Microsoft Windows Vista Ultimate SP1, Microsoft Windows Vista Home Basic SP1, Microsoft Windows Vista Home Premium SP1, Microsoft Windows 7 Ultimate 64-bit Edition, Microsoft Windows XP Home Edition SP2 or later, Microsoft Windows XP Professional SP2 or later, Microsoft Windows 7 Home Premium 64-bit Edition, Microsoft Windows 7 Professional 64-bit Edition, Microsoft Windows Vista Business 64-bit Edition, Microsoft Windows Vista Ultimate 64-bit Edition, Microsoft Windows Vista Home Basic 64-bit Edition, Microsoft Windows Vista Home Premium 64-bit Edition, Microsoft Windows XP Media Center Edition SP2 or later, 300 MHz or faster, 300 MHz, 3.0, CD-ROM, VGA monitor, 300 MHz or faster, 300 MHz, Windows, Internet Explorer 6.0 or later

Specs: 3 users, Complete package, CD-ROM, Windows

Specs: 1 user, Complete package, Windows