On Wed, 2007-03-14 at 17:06 -0400, William Couture wrote: > Any suggestions for the "most transparent" USB to RS232 converter? > > Once the USB driver is installed (Windows XP probably), you can't > tell it from a real RS232 port? Define "you can't tell"? Every USB-RS232 will at least have an entry in device manager showing it's not a real USB port. >From a software perspective the FTDI based ones are very "transparent", aside from the "high" COM number. TTYL -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist