Retrospective / ProActive - Test May 2008 by AV-Comparatives
http://www.av-comparatives.org/seiten/ergebnisse_2008_05.php

Company / Product / ProActive detection (Number of false positives)

ADVANCED+
AVIRA / AntiVir PE Premium / 72% (few)
ESET / NOD32 Anti-Virus / 57% (few)

ADVANCED
McAfee / McAfee VirusScan+ / 32% (none)
AVG Technologies / AVG Anti-Malware / 32% (few)
G DATA Security / AntiVirusKit (AVK) / 29% (few)
Microsoft / Microsoft OneCare / 29% (few)

STANDARD
BitDefender / BitDefender AV / 44% (many)
Norman ASA / Norman ISS AV+AS / 35% (many)
Alwil Software / Avast! Professional / 28% (many)
VirusBlokAda / VBA32 Anti-Virus / 25% (many)
Kaspersky Labs / Kaspersky AV / 21% (very few)
Symantec / Norton Anti-Virus / 18% (very few)

POOR
MicroWorld / eScan Anti-Virus / 6% (very few)
F-Secure / F-Secure Anti-Virus / 6% (very few)
Sophos / Sophos Anti-Virus / 74% (very many)
AEC / TrustPort AV WS / 64% (very many)