OS/2
- "During the next 10 years, millions of programmers and users will utilise this system" — Bill Gates, November 1988, in the Foreword to the Inside OS/2 book by Gordon Letwin, Microsoft's architect for OS/2
- "In the summer of 1988, I received an interesting call from Bill Gates at Microsoft. He asked whether I'd like to come over and talk about building a new operating system at Microsoft for personal computers. [...] What Bill had to offer was the opportunity to build another operating system, one that was portable [...]." — Dave Cutler in his introduction to the book Inside Windows NT
- "I won't pollute it [NT] with crap!" -- Cutler to Bill Gates, upon being told that NT was to have an OS/2 "personality" as an alternative front-end.