Comment by nradov

R&D funding provided by IBM wasn't classified as "profit". The Windows NT code base didn't use much from OS/2. In the end OS/2 was mostly worthless garbage to be thrown away; it had some good functionality in a few limited areas but was essentially a "local maximum" and had no viable path forward. If anyone wanted to turn OS/2 into a viable modern OS they would have had to start over from scratch.