Avira is well-known in A/V for producing higher false positives than most other competing products. That said, it also (as of late last year) had the highest a

Avira is well-known in A/V for producing higher false positives than most other competing products. That said, it also (as of late last year) had the highest actual detection rate (at 74% of 20,000+ tested bits of malware). It also won AV Comparative's "gold" award for 2008, there's still a free version available for personal use, and it offers one of the lowest impacts on system performance of any antivirus product. So, although I agree with the author that the heuristics in this case aren't optimal, Avira is still a very good product overall.