@ Bruce

I had read one topic here on how to use PBP in MPLAB under debug mode.
He said to include "ICDDEFS*.bas for the program to run in debug mode under MPLAB.
In relation to your comment above
1.How can we create one?
2.Do we need to see some specs from the datasheet?

Bruce if you can provide some steps and samples on how to create one it would be more easy for me as a newbie to understand.

Since lastweek Im planning to use mplab debugging feature for PIC18F2550 and 4550 can you give one sample for either of this pics in creating ICDDEFS?

Thanks & regards

Chris