Ran a p2vhd conversion on a Server 2008R2 terminal server.
Mounted the VHDX in Server2012 HyperV. Booted fine. Changed the IP to the same IP as the Physical Machine.
I am able to connect via RDP from various points on the LAN but not through the firewall. The same NAT rule is in place that was working before.
I did check the ARP table on the ASA 5505 and it does list the correct MAC for the VM NIC. It can ping the VM from the ASA.