Hi,
During my ongoing search of free licenses in all kinds of documentation, I've come across a PostNuke Guide at http://www.drewvogel.com/modules.php?op=modload&name=Downloads&file=...
On the first page is stated: ------------------------------------ "LICENSE & COPYRIGHT FOR THIS GUIDE The Official PostNuke Installation and Getting started Guide was written by Drew Vogel. Copyright 2002 by Drzew Vogel. All rights reserved.
You may not distribute, modify, or translate this Guide without prior consent of Drew Vogel (drew@drewvogel.com). The only approved use is review,comment, and personal use.
This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, Draf v.1.0, 5 Juni 1999 or later (the latest version is available at http://www.opencontent.org/openpub ).
Distribution and/or sale of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder.
Distribution and/or sale of the work or derivative of the work in any standard (paper) book form or printed form is prohibited unless prior permission is obtained from the copyright holder." ----------------------------------------------------------------
Appearantly, this guide is dual licensed with a traditional license and the OPL with options A and B. So the first statements do not contradict the terms of the OPL with options. Correct?
But when you compare these options with options A and B of the OPL, you see that they are changed:
"Distribution" ---> "Distribution AND/OR SALE" (2X)
"any standard (paper) book form" ---> "any standard (paper) book form OR PRINTED FORM"
Are such changes allowed? Of course, a copyright holder chooses whatever he wishes, but if he chooses OPL+options, can he then change the options to more restrictive ones?
Wouter Vanden Hove