The time I saw MS Word deployed on a Xenix box it didn't work terribly well - was fine on the system console but was barely usable on serial terminals as the make of terminals (Wyse something or other) had Alt keys which did nothing. And, as far as I recall, the Alt key was pretty important in Word.

Of course, this wasn't Microsoft's fault - rather the idiotic salesman who had sold all of this without checking with anyone whether it would work or not.