Iain said:
Whilst I'm aware that running dual anti-virus programmes
concurrently are forbidden, does the same hold true for
anti-spyware?
It's not forbidden, but you shouldn't run two anti-virus programs (or
two firewalls for that matter) at the same time, since they may conflict
and even cause crashes.
As for anti-spyware, it's the other way around. No single anti-spyware
program has a good enough detection rate, it is therefore recommended to
run at least two, hoping that the second program picks up what the first
didn't and vice versa. Conflicts are not a big issue with these
programs.
Charlie42