shinerburke, sorry, but what you are saying about NT's development simply is not true. Neither IBM nor Digital wrote a significant amount of NT's code. Microsoft hired some top Digital programmmers to write NT, like operating system guru Dave Cutler. You have to say that this work was done by Microsoft, since they were all working for Microsoft, not Digital. The only code that came from IBM was the code in the OS/2 subsystem. Microsoft had originally planned on making the OS/2 Presentation Manager subsystem the "Primary Personality" for NT. When Microsoft saw the success of their own 16-bit Windows, they decided to make the 32-bit Windows subsystem(Win32) the Primary Personality for NT. The OS/2 subsystem ended up being nothing but an obsolete subsystem that almost no users have ever used.