@scottalanmiller Ah ha...finally I figured it out...I couldn't connect to a virtual switch because I hadn't created one yet.
I found this tutorial on Hyper-V, http://www.tenforums.com/tutorials/2087-hyper-v-virtualization-setup-use-windows-10-a.html
Part Three explains how to create a virtual switch.
Part Five explains that Vista (and earlier) VMs have to be created as a legacy Windows VM. Which means having to "add hardware" in the VM settings and choose Legacy Network Adapter.
And finally I was also able to enable quest services via Integration Services under the Management tab.