'Unable to add virtual device', again.

Hullo. I'm one of the seemingly thirty billion people encountering this error, so I figure I'd throw my lot in.

I've run the FixIt solution and restarted, to no avail.

The .arn file requested is here: https://docs.google.com/open?id=0BwT...mRaLXFZY203SXM

As for my filters, my disk drives all have 'PartMgr' as an upper class filter, and lack lower class.

My CD/DVD devices, of which there are four, are as follows.

HL-DT-ST DVD-RAM G22LP20 SCSI CdRom Device
LCRNSNCH LEZOPYZ SCSI CdRom Device
and two DTSOFT Virtual CdRom Devices. I find this odd.

All share GEARAspiWDM and ElbyCDFL as upper and lower devices respectively.

I should also note that now DAEMON TOOLS lite refuses even to run, the tray icon and process closing instantaneously upon execution.

I hope all of this information can lead to a speedy assistance and recovery.