How do you increase MOUSE SPEED beyond ordinary settings (regedit doesn't work)

How do you guys increase your mouse speed beyond the super slow ordinary settings on a PC?

I followed Microsoft’s suggestions (used regedit to change the values of MouseTreshold1 and 2 to zero, and changed MouseSpeed to 2), but it didn’t have any effect - and I did reboot.

The mouse is not the problem; I’ve tried several.

On my Mac, I have a marvellous piece of software, MouseZoom, that increases mouse speed to insane levels, but it’s not available for PC’s. (There is a similar named application for PC’s, but it has nothing to do with the speed increaser.)

So I wondered if you know of a similar program for PC’s?