Another VMprotect Licensing Question

Hi All,

i have just purchased a Single CPU License of VM Protect. I am working with a vSphere 5 Datacenter consisting of 12 Hosts in Total (12 Sockets, 4 Cores per Socket)

I try to backup a VM on a single ESXi 5 Host (Not a member of a Cluster). I entered the license in the web console but can not attach this license to this specific Host. When i go to License Configuration it tells me 1 license available and 0 used. Everytime i try to make a Backup i get "not enough licenses available".

Now, maybe i completely missunderstood the licensing. Does 1 CPU refer to 1 Core or one Socket?

Thanks for anyones Help