Hello Andreas, unfortunately the discussion process for OSI approval of the HPND [1] license was practically null :-), so I cannot find more info about that specific "without fee" in the license There isn't discussion on https://directory.fsf.org/wiki/License:HPND also Andreas Enge writes: > I do not get why the license can be free with the non-commercial > clause. At first I was also tricked to understand "without fee" to mean non-commercial, precisely that "without fee" is related to "distribute this software". Reading the first sentence four times, we can also read "without fee" related to "Permission to..." **and** "use, copy, modify and distribute" "for any purpose", including commercial one Anyway I agree with Bruce Dodson [1]: «The notice has ambiguities that make it hard to recommend» > What am I misunderstanding? The above one is my personal interpretation of the ambiguity coming from "without fee", anyway the fact that this license is GNU and OSI approved (as GPL compatible one, also) is a guarantee :-) ...and is Historical! :-D HTH! Gio'. [1] https://web.archive.org/web/20190620074602/http://crynwr.com/cgi-bin/ezmlm-cgi?3:sss:6305:jggiiehpeekebdbmpopm -- Giovanni Biscuolo Xelera IT Infrastructures