Windows Small Business Server Essentials in 2011 provides an easy-to-use solution, ideal for first server businesses. It's a full server...everything a business needs. It comes with computer and server back-up, file sharing, remote access and support for running business software.
Windows Small Business Server 2011 Standard is a simple-to-manage, all-in-one premise solution to meet your IT needs. It's perfect for small businesses that already have a server or prefer to use e-mail and collaboration tools hosted directly on the premises.
Windows Small Business Server Premium Add-on
The SBS 2011 Premium Add-on is a powerful data management and analysis solution that will be available for both editions. The add-on gives small businesses the flexibility to purchase additional servers as needed.
The primary add-on services include: