Thanks Denny, Luis, Wouter, Alan and Tim for your comments, they really help me to understand the legal, commercial and ethical part of developments and the Piclist sharing. Due to my lack on grammar I haven't made my self-clear. The third question is about the knowledge which came from the Piclist and you cut, paste modify etc in the code you already are making for a client... But don't worry a get the point. I have re-read my original post and I beg your pardon about the final part... It thought I have erased prior to sent it. Dennis. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.