First post, by jarreboum
Before the wheel replaced it and wheel-click became a thing, there were mice with a third button in the middle. I can't remember any use for it, but my experience is pretty limited. AFAIK Windows 3.11 doesn't use it nor the wheel.
Was there some software in which you just couldn't do without the middle button (be it mandatory or simply too useful a function to do without)? Or do you believe it was just a gimmick that was only able to catch on after the wheel was invented?