What you need is a driver for the Hyper-V network adapter you have chosen. In a VM the hypervisor emulates a virtual network adapter. In a VM the guest has no access to the real hardware so cannot use for drivers for your physical hardware. Neither of the above is relevant when running in a Hyper-V VM.The card is an AR8161 chip, so you can use ordinary Atheros drivers for it, the following page details how: Thankfully, as SuperUsers, we don't care about official support. XP drivers for your card apparently aren't supplied by the manufacturer so there is no 'officially supported' method to use it under XP.
