Office. The parts of Office basically killed off everything that competed with it. Office helped sell Windows and vice versa. Anyone who tried to compete had to

Office. The parts of Office basically killed off everything that competed with it. Office helped sell Windows and vice versa. Anyone who tried to compete had to do something radical and only Apple had radical (once Steve returned) since they had their own hardware. Competing with Microsoft back then is something I had a lot of experience of, and the failures to prove it.