https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/
Windows 7/2008 support: 173-9 (https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.173-9/virtio-win-0.1.173.iso).
