Kaspersky Anti-Virus 2011
Kaspersky Anti-Virus 2011 takes fifth place in our roundup of 2011 antivirus software, closely trailing fourth-place finisher G-Data AntiVirus 2011. It did a great job at stopping brand new malware attacks, and a reasonable -- though not top-notch -- job at detecting known malware, and it sports a well-designed interface. On the downside, its impact on PC performance was worse than average.