Multilayer Protection from 4 different antiviralwares...?

["J. Yoon" <supercool9000 () hotmail com>]

Knowing that 1 single antiviral ware can not detect every virus/worm and the 
difference in the time virus defitions are released,  I've tried to install 
many as possible to try and get multiple layer protection.

Has anyone ever successfully configured an XP/2000/NT  to work with a 
combination of different antivirus softwares?

I've been using the following in conjunction;

1. mcafee
2. norton
3. avg
4. pccillin

However, I realized that even if I have more than 1 antiviral software 
running, only one of them will scan my IMAP emails and only one of them will 
detect those resident in the memory....
ALL depending on which software was installed "LAST".
We're not talking about scheduled-scan but the actual scanning of 
registry/memory and live interception. I've tried testing this speculation 
by infecting my system with two different set of known worms/trojans and 
noticed that only one was doing anything at all.

One thing to note is that McAfee seems to crash very often when I run it 
together with Norton.

Is it actually providing triple/quad protection, or is this another common 
"false sense of security"?

What would the experts recommend we do
in order to get a SOLID multi-layer viral protection?
(ie: taking into consideration the software compatibility issues between 
different products)

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