Does VirtualDub need an active connection of some sort through the AIW before it will detect it as a source for video capture? Either a cable connected or a powered on VCR, etc.? Or should it detect the card itself as the source?
Everything was showing fine in Device Manager, but no sources were listed in Virtualdub. Oddly, while I had the AIW properties open, the error in the third image popped up for the first (and so far only) time.
After I installed radeon-software-adrenalin-2020-21.3.2-minimalsetup-210329_web.exe, however, sources appeared, as seen in the fourth image.
Currently installed is the card shown in the attached photos. Drivers have been downloaded from this site, but to be honest, I don't remember what the last set was that I installed. A number of them that I believed to be for the AIW 2006 either didn't recognize the device, or the device didn't recognize the drivers.