Microsoft Small Business Server 2011 and Small Business Server 2011 Premium Add-on Product Technologies SBS 2011 Standard
(1-75 users)
SBS 2011 Premium Add-on
(available as an additional purchase for SBS 2011 Standard)
Windows Server® 2008 R2 Standard Operating System Windows Server 2008 R2 Standard Technologies

yes

yes

Messaging and Collaboration
Offers advanced email and calendar functionality delivering a seamless end-user collaboration experience and advanced security and archiving features.
Microsoft Exchange Server® 2010 SP1

yes

 
Work Anywhere Collaboration and Productivity
Share internal documents, coordinate calendars, manage issues, and participate in discussions while you’re on the road.
Windows SharePoint® Foundation Services 2010

yes

 
Network Updates and Protection
Enables administrators to deploy and fully manage the distribution of the latest MS product updates to computers in their network.
Windows Server Update Services 3.0 SP2

yes

 
Database Management and Analysis
SBS 2011 Premium Add-on includes software to run on a second server that is dedicated to supporting a vast number of line-of-business applications such as accounting, business planning, and CRM which share a centralized database so that all employees can work from the same information.
Microsoft SQL Server® 2008 R2 for Small Business  

yes