Steve, Even though I was using the link process MPLAB would still rebuild every file each time I would do a make project. Using includes is a good idea, at least I can keep the various modules separate. Thanks, Barry -----Original Message----- From: Steve Ridley [mailto:stever@INSNET.COM.AU] Sent: Wednesday, July 14, 1999 6:49 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: MPLAB and multiple source files. Barry I do multiple files by using the include directive. Not as good as the linking method because every file gets recompiled every time but maybe it is a workable compromise for you. Steve