Microsoft recently released a new security subscription service called 'Windows OneCare Live'. This new security service is currently in beta testing phase. Some of new features of the service are: an improved software firewall, anti-virus, data backup and cleanup tools for your computer.
Microsoft also announced the pricing of the new service will be: $49.95 per year to protect three PCs. Currently now while its in beta, its free to try until April 30th.