re: "at ac's suggestion we installed vm." The old server was dying. I hired a "server" person to configure, buy, install & migrate the domain and data over. He spoke directly with AC tech. Since then I have never really heard anybody object, and they are always able to deal with the VM. One has said it is good to get SQL away from the main box, but with 3 instances running on the main side, I'm not sure it is helping.

The VM is setup using Hyper-V Manager. Help > About says version 6.1 from Microsoft.