Crappy winxp puts the usb mouserate slower than the ps/2.
So this little proggy puts it to the max. With PS/2 you could
get 200 hz and with the usb only 125 hz. I maxed my mouse
to 500 hz.
Usb mouserate hack for winXP + rate tester:
For windows 2000 by nake89!:
Start the "mouserate changer by nake89.exe". Not "install.bat"
To get this work on vista -> link.