I know that no other realtime av is needed, but which other malware/antivirus scanner free or paid is best with Prevx? I have a license for Eset's NOD32, but haven't installed it. NOD32 uses about 35 to 40 MB ram. Prevx uses about 41 MB ram. I also have Sandboxie and Online Armor. My O S is XP Pro SP2. I may just use these I have installed now. Prevx Online Armor Sandboxie Trojan Remover SpywareBlaster Gmer Rootkit Unhooker IceSword 1.22 Malwarebytes' Anti-Malware SUPERAntiSpyware Only 3 in the first group are real time. I want the smallest ramprint possible without sacrificing effectiveness. According to Neil J. Rubenking I don't need another.