Windows Vista/Vista64 Serial USB Driver for PIC18F2455 and PIC18F2450

When plugging a new USB device, Windows checks all its INF files to load the appropriate driver. The INF file contains the Vendor ID, the Product ID or the USB Class definition. If the VID/PID or the USB Class Definition of the USB device matches with one INF file, Windows will load the driver described in this file. There is no driver required for Microsoft Windows as the adapter using the standard Communication Device Class (CDC) driver usbser.sys included in the distribution. Windows doesn’t have a standard INF file for the CDC driver and Microchip provides one. However, the INF file is not working with Windows Vista as Vista doesn't have usbser.sys in the system folder but only as part of another preinstalled driver. I have updated INF file to support all the version of Windows including Vista64. The installation procedure is trivial.

Select the the driver INF file location:

Confirm the driver installation procedure...

and have your PIC18F2455 driver installed.