Can I install Windows Live OneCare on more than one computer?
Your OneCare account allows you to install OneCare on up to three computers using the same Windows Live ID that you used to install OneCare on the first computer. Learn more.

What is the difference between Windows Live OneCare for Small Business and Windows Live OneCare?
Windows Live OneCare for Small Business will provide protection for Windows Small Business Server 2008 Standard and Premium platforms, and the Windows Server 2008 Standard 64-bit platform. A single subscription to Windows Live OneCare provides protection for up to three PCs.

With Windows Live OneCare for Small Business and Windows Live OneCare, small businesses can now extend the protection of OneCare to both the server and the PCs in their network.

How do I purchase Windows Live OneCare for Small Business?
Windows Live OneCare for Small Business subscriptions, important details about this exciting release, and a free trial of Windows Live OneCare for Small Business, are all available.