Hi all, During playing with PICDEM FS USB and PICkit 2, sometimes I will mess up the bootloader. Therefore I need to re-flash the bootloader (using an ICD2 normally). And then I can use the bootloader application to download the application hex. I want to combine the bootloader hex and the application hex just like what Microchip does in PICDEM FS USB (C:\MCHPFSUSB\fw\_factory_hex) and PICKit 2 (PICkit2_Ver_101_Combined.hex in the CD). It is easy for them to produce the demo board. Are there any utilities out there which can do this? Thanks in advance for any suggestions. Regards, Xiaofan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist