We had a similar problem with our product software that uses an old DOS-based APL interpreter. A client solved it for us! He was able to go into settings and instead of taking the "default" address, he specified the actual hardware address of the comm port. Everything worked normally, except that WinNT wouldn't let other processes have the port. I admit it sounds wierd, but it was that simple. Maybe it will work for MPLAB too. Good luck ---------- > From: Thomas Magin > >I am using the latest MPLAB 3.22.02 that I obtained off the Microchip > >website. I am also using the Picstart Plus Development Programmer, Part > >#10-00157. When I try and configure the programmer port within MPLAB, > >I get an error message saying "Command [8D] not echoed properly [AB]." > >Thus, I'm not able to talk to the programmer. What is happening here? > >I am running MPLAB on a Pentium Pro 200 with Windows NT 4.0 Workstation. > > AFAIK MPLAB can not operate the Programmer if you are working under NT. > Thats an info from micrchip Germany. We asked because we figured out the > same problem. > > Thomas > =8-) > > ********************************************************** > * Thomas Magin FON: ++49-761-4543-489 * > * marquette-Hellige GmbH FAX: -507 * > * Emergency Systems email: magin@hellige.de * > * Munzinger Str. 3 * > * D-79111 Freiburg / Germany * > **********************************************************