>No. There was never any intention to keep non-msdos systems working.
$155 million and Bill Gates: "You never sent me a response on the question of what things an app would do that would make it run with MSDOS and not run with DR-DOS. Is there feature [sic] they have that might get in our way?"
$155 million and Bill Gates: "You never sent me a response on the question of what things an app would do that would make it run with MSDOS and not run with DR-DOS. Is there feature [sic] they have that might get in our way?"
says there was https://www.itprotoday.com/windows-78/microsoft-settles-dr-d...
https://en.wikipedia.org/wiki/AARD_code