is there a need to run a anti virus scanner on a mac running os 9.1

if there is is there any good free anti virus scanners out there available.

from my knowledge the only one is F-Prot but I don't know if its free

I am sorry if its not free thats the only one out there

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.