Commrades; I had to break up a C program into multiple files for logistics reasons. (I would be hanging myself from a rafter if I had to write it in assy). When I press CTRL-F10 in MPLAB, I make all. When I press F10, I expect to make only the files that changed. I found that both perform the same. I change one file, they all compile. Of course, I want to compile only the changed file and link. Does anyone have insight into this make issue? Thanks Chris Eddy Pioneer Microsystems, Inc.