JSI Tip 0359 - Intellimouse stops working after Service Pack 3?

On some systems, the Intellimouse stops working after the application of Service Pack 3.

The workarount is to install the i8042prt.sys driver from the origonal CD-ROM. To do this, type:

expand <CD-ROM drive>:\i386\I8042prt.sy_ %SystemRoot%\System32\drivers\I8042prt.sys

Shutdown and restart the system.