as part of the work on oVirt 4.4, the team rewrote the VirtiIO Windows Drivers installer using the open source framework WiX.

Thanks to the virtio-win maintainer, the new installer is not shipped anymore within oVirt Guest Tools ISO: it's shipped now directly into VirtIO Windows ISO[1] 

Please give it a run on your testing environment / testing VMs and let us know about your experience at devel@ovirt.org.

Thanks,

[1] https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.173-2/
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