We had to install an XP Virtual Machine on a Windows 7 machine to do it. Microsoft offers this for free on their website, instructions included.
Took probably 4-6 hours of download, install, update, screw around time... But it does work.
This was also useful because the DeviceNET tag generator didn't work properly on Windows 7 (last summer, does it work properly now?). So I already had the VM setup.