Applies To: Windows Small Business Server 2011 Essentials
Windows SBS 2011 Essentials server software is a 64-bit only operating systems.
You can install the server software either manually or unattended (see the sub-section titled Unattended Server Installation).
One 1.4 GHz single core (64-bit) or dual-core 1.3 GHz or faster processor.
2 GB RAM
At least one160 GB hard drive.
NTFS is the only supported file system.
Supported Networking Configuration:
Your server computer must be connected via a network cable to a router.
The router should be a UPnP-certified device, but it is not required.
The router should be in the 192.168.x.x subnet, but it is not required.