Server core - assign static IPs on command line

First determine your interface names for multiple NICs:

netsh int ipv4 show interfaces

Next assign IP details to the interface name you require:

netsh interface ip set address "Ethernet1" static 192.168.99.101 255.255.255.0 192.168.99.1
netsh interface ip set dns "Ethernet1" static 192.168.99.2
netsh interface ip add dns "Ethernet1" 192.168.99.3 index=2

Removing Hyper-V role from Server 2012 R2 free edition

In powershell run this:

Remove-WindowsFeature -Name Hyper-V

This will then allow the free Starwind license to be installed on this free version of Windows as the role isn't recognised anymore.