You pay .99 per year to protect one computer with NOD32; additional licenses, up to a total of five, cost per year.
It also achieved Level 2 certification in that lab's broader malware protection test, meaning that although some of the samples managed to install, it wiped them out afterward.
Only Kaspersky Anti-Virus managed Level 1 certification, meaning that it totally prevented installation of all the samples.
Some antivirus software sticks strictly to its assigned task of removing malware and preventing any further infestation.
Others, like ESET NOD32 Antivirus, pack in quite a bit more.
Among other bonuses, NOD32 includes device control, a Host Intrusion Protection System, and a scanner that checks for malware in your PC's firmware.