Apple today released Multi-Touch Trackpad Update 1.1 for Windows to improve trackpad performance for users running Windows XP or Vista under Boot Camp.
This update improves the performance of the Apple Multi-Touch trackpad when running Microsoft Windows XP and Windows Vista on a Mac computer using Boot Camp.
For information on how to install this update, please visit this website: About the Multi-Touch Trackpad update 1.1 for Windows XP and Vista.
The update weighs in at 3.93 MB.