Small Business Server 2011

Small Business Server 2011 was released during the first half of 2011. The new offering is based on two versions. One version for on-site server deployment and the other for a combined on-site solution coupled with hosted email services. The small business server versions are listed below with an optional premium add-on:

Windows Small Business Server 2011 Essentials
Windows Small Business Server 2011 Standard
Windows Small Business Server 2011 Premium add-on

Small Business Server Feature Comparison:

Features	SBS 2011 Standard	SBS 2011 Essential
Target User	Small Business, Max 75 users	Small Business, Max 25 users
Licenses	Server & CALs required	Server license, no CALs required
Products Included	Windows Server 2008 R2 Exchange 2010 SP1 Sharepoint Foundation 2010 Windows Software Update Services	Windows Server 2008 R2 with compatible online services
Network Roles (DNS,IIS,DHCP)	Yes	Yes
File Sharing (SMB & NFS)	Yes	Yes
Active Directory Security	Yes	Yes
Server Backup	Yes	Yes
Workstation Backup	No	Yes
Application Support (Line of Business)	Yes	Yes
Health Monitoring	Yes	Yes
Remote Web Access	Yes	Yes

The Small Business Server 2011 Premium add-on can be used with both the standard and essential versions of Small Business Server and includes these additional features:

Additional Windows 2008 Server R2 Standard license - Many additional services can be added in this senario. ie. Remote desktop in application mode, Bdc, Hyper-v, other standalone uses.
Microsoft Sql 2008 R2 database software