What happens when you plug it in? Do you get the device insertion sound? Does Windows say it's installing a driver? When it does show up under COM 8, can you right-click and tell it to update the driver, and then navigate to the drivers folder to install the driver? What happens if you do that? Have you tries to right-click in the .inf file in the driver folder and choose install? If so, what happens when you do that? Specific error messages are important here, so please make note of them.