August 3, 2020
No viruses, working ISO image
It doesn't have viruses. It's CD image with software from 1991. It's highly unlike, even if it did at the time, it wouldn't work on modern Windows as it contains only DOS and 16bit Windows programs.
I checked VirusTotal anyway, in case CD was really compromised, but it didn't return any positive result. So, Windows Defender likely had a false positive.
It's an ISO image. 7-Zip opens it without any problems and it works in QEmu as a virtual CD without problems. So, if it doesn't open in one program, try the other. Or try changing the extension to .iso.
I can't leave rating as I didn't really explore the contents. Just took a quick look.
But I saw there are some negative comments so I wanted to check out for myself.