5 ms·

> Didn’t Microsoft somehow ruin Dr DOS? They added some obfuscated code to Windows 3.1 that made it refuse to run on DR-DOS. https://en.wikipedia.org/wiki/AAR

by jech 5mo ago

> Didn’t Microsoft somehow ruin Dr DOS? They added some obfuscated code to Windows 3.1 that made it refuse to run on DR-DOS. https://en.wikipedia.org/wiki/AARD_code https://en.wikipedia.org/wiki/AARD_code