DOS / OS
EN
Zdos USA ISO USA
Scrounged through the site on web archive to get a link. https://web.archive.org/web/20121010233724/http://zebor.com/aboutus.html https://web.archive.org/web/20120701003221/http://www.zebor.com/main/download/ZdosUSA.iso Still downloads the file The file still downloads, the readme gives instructions for installing to a disk, it has a version of dos32a in its dev files thats still useful. Ive installed with qemu or other emulator fine to a hdd and it loads and works, I have not done much with it.
download