[tanzam75]

> and the DR-DOS Windows thing (where Windows would run on DR-DOS if it pretended to be MS DOS, but not otherwise).

Only in a beta, not in a released version:

http://blogs.msdn.com/b/larryosterman/archive/2004/08/12/213...

Since it did not make it into a released version of Windows, it did not actually affect DR-DOS. Still, Novell eventually got an 8-digit settlement out of Microsoft.

[yuhong]

I mentioned that lawsuit (particularly the Win95 parts) in my blog article on the MS OS/2 2.0 fiasco:

http://yuhongbao.blogspot.ca/2012/12/about-ms-os2-20-fiasco-...