I am in need of a multi-server setup consisting of
1) a host OS
2) a Hyper-V VM that is the DC, contains the AD and hosts ADFS 2.x, possibly hosts SQL Server
3) a Hyper-V VM that hosts the application (Dynamics CRM)
For 3) I will use Server 2012 Std. For 1) and 2) can I use Server 2012 R2 Essentials? Based on what I read 1 Essentials license allows me to install a core OS and run Hyper-V and backups of the VMs while also allowing the full OS to run, i.e. it would cover both 1) and 2). Is this correct? Also does it support everything listed under 2)?