William, do not waist your time picmaster will not work with NT works with win95 and 3.11 only. Andre William M. Smithers wrote: > My PICMaster Plus works just fine on a Win95 machine, > but when I plug it into NT, it can't see the > serial port. I'm pretty sure I've got the IRQ's, handshaking, > etc correct, but nada. Anybody else seeing this, or > is just my NT configuration? > > -Will