I'm using Microchip's usb_function_generic.c to pass text commands back and forth in several products. Every time Microsoft changes something, our USB drivers stop working or become difficult to install. Is there a way to use usb_function_generic with a driver that ships with Windows to avoid driver installation issues? We're currently using a VID and PID assigned by Microchip. Does this further complicate things in that the driver expects to work with a particular VID/PID combination? I only work on the PIC side of this, but I'd like to give our Windows guy something so he doesn't spend all his time fighting this. Thanks! Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .