On the minimizor website is a new mouse tool availible.
for all wicked fetish mouse users. check it out.

DInput is written to change the use of Windows API coordinates
(in games or applications) to Direct Input coordinates.

Direct Input has got the following advantages compared to Windows API coordinates:

Features:
» No pointer ballistics (impossible cause of acceleration)
» It's designed to work on high resolution mice (win coordinates aren't)
» Faster (in theory)
» Different and mostly smoother feeling
» Because of the above reasons it mostly helps against negative acceleration

http://www.idcation.com/?lang=en&X=news&id=139