No specific info about version 8.4. Please visit the main page of Logitech Gaming on Software Informer.
Customize your Logitech gaming device with this free software.
Change function key shortcuts and customize mouse buttons.
Assign key functions to the Gigabyte XM300 gaming mouse.
Windows XP device drivers for Logitech USB based mice.
It enables you to configure various gaming profiles for the DS100 mouse.
Automatically updates your drivers for Logitech devices.