Hi! I was hoping someone could tell me if it is possible to re-program the program flash memory of an 18F452 without erasing the data EEPROM. And, if so, how to do it using an ICD2 and MPLAB (and what version...) I talked to Microchip last week, and was told that it could be done. However, now that I have my ICD2 and MPLAB 6.00.20 running together, it doesn't work, and *ALL* Microchip support people are not available until Monday the 18th (training so that they can serve their customers "better"...) Thanks! Bill -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body