No it's not relevant - the topic of the thread is "Microsoft innovations", not - "Great things Microsoft did NOT invent".
If they were way behind where are those companies that were ahead now? You crack me up really - it's like saying something like Tamagotchi was not innovation because elements of it were used (to much lesser effect) earlier.
What about Microsoft scroll mouse? That was real innovation and very useful one, perhaps you can dig up some history when someone else actually tried it first or that Microsoft perhaps bought the company that was working on this R&D all their life, who cares - it's innovative feature at the end of the day and I am not bothered if the only innovation in this case Microsoft did was to have people who spot such innovations.