Check out virus makers sites and read the info they give on protecting yourself.I'd recommend "Anti viral toolkit pro" software the virus writers say that McAfee and Norton products are not reliable protection I'm inclined to agree these people study the protection programs and develop viruses to get past them.Most of these programs have download filters and can scan emails and program files automatically.The best protection though is common sense don't run any prog you don't trust without virus scanning it first and never open unsolicited attachments.