AK90 BMW KEY-PROG increased by 1995-2009 in all BMW EWS read the key information functions;improved some of the EWS to read and write speed. This product safe and effective, is the key to match the best tool for BMW.
I think it will be useful.
BMW AK90 key programmer operation video:
Part one:AK90's Key maker user guide operation video (part one) - YouTube
Part two:AK90 key programmer user guide video(part 2).avi - YouTube