At 10:19 AM 3/27/2004 -0600, you wrote: >Use what comes on your computer. At dos prompt type > >FC file1 file2 > >simple and free. Doesn't work. Suppose one hex file has 8 word line lengths and the other has 16 word line lengths... headers and checksums will be different on every line. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads