Matousec.com - May 2012 Test

http://agnitumblog.blogspot.co.uk/2012/05/security-test-reveals-users-of-64-bit.html

Is this true? Are users of 64-bit Windows anti-viruses really being left behind?

I do not know the veracity of this but it reinforces my inclination to always install the 32 bit version of Windows 7. Will a 4GB virtual address space (assuming LARGEADDRESSAWARE flag set) ever become insufficient in Windows 7?

Even as an Outpost user is see this as nothing more than PR and when allied with Matousec (testing methods), I have little confidence in the statement.