i NEVER EVER messed with the mouseDemo...

BUT...You need to know which PID/VID it use.. if any (USBDemo use the default one generated with EasyHID).. unless it will never work.

Q: Sir... how may i know the VID/PID?
A: USBDeview is a nice & free Utility ( http://www.nirsoft.net/utils/usb_devices_view.html )