Hi Piclisters, While in the midst of trying to write a CAN bootloader, I found Microchip AN247, a CAN bootloader design and software package. Lucky for me, their schematic is almost identical to the board I have built for this project. I DL'ed the ZIP and unpacked it easily enough. I tried to start their PC side software, apparently written in Visual Basic, and I just can't get the executable to open. I am assuming that the exe file would not require me to purchase visual basic to run it. I do have Visual C++ on this machine, with visual studio. If anyone on the list either knows enough about VB to know what I'm missing, or better yet if someone has sucessfully run the software from AN247, I'd love to find out what I'm doing wrong. Thanks Thanks, Lyle -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body