patrickv

I've used mny Anti virus apps in my career.but never have i seen the worst anti virus than the ones below

1.symantec corporate edition
2.E trust antivirus

I say this because i once installed them ona users machine and some virus (forgot the name) diabled their function.Symantec only showed an empty dialog box while E-trust exe stopped functioning.That's my point of view.
Are there any AV products one should not use.??