Although Microsoft's enterprise-oriented Client Protection package provides managed anti-malware protection for midsized and large companies, small businesses and individual users need to seek out other anti-malware solutions. (For more information about Client Protection, see Need To Know, "Microsoft Client Protection," January 2006, InstantDoc ID 48430.) This year, Microsoft will ship two PC security packages, dubbed Windows OneCare Live and Windows Defender, that are intended to help those customers protect their equipment from a variety of electronic attacks. Here's what you need to know about OneCare Live and Windows Defender.