File Services — limited to 1 standalone DFS root. When comparing Foundation and Standard edition, note that in Standard edition we have a Hyper-V role available. However, we have Virtual Image Use Rights for the host physical instance and 1 virtual machine. Enterprise Edition The Enterprise edition provides additional hardware support and some additional server roles, when compared to Standard edition. Enterprise edition supports all available roles in full including Active Directory Federation Services. Datacenter Edition The Datacenter is similar to the Enterprise edition, but provides additional hardware support. Enterprise edition supports all available roles in full.
On 27th July the first beta version was released. The second version was discharged on 23rd May
Server Basics (1) - Setup a Domain Controller - Windows Server 2008 R2