The license for AC.earth is the same as the license for XEarth, to which I added my own copyright notice:
AC.earth Copyright © 2002 Christian Treber, firstname.lastname@example.org
is based on the source code of
XEarth Copyright (C) 1989, 1990, 1993-1995, 1999 Kirk Lauritz Johnson
Parts of the source code are:
Permission to use, copy, modify and freely distribute xearth for non-commercial and not-for-profit purposes is hereby granted without fee, provided that both the above copyright notice and this permission notice appear in all copies and in supporting documentation.
[Section refering to GIF omitted because it doesn't apply to this version]
The author makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.
THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
New updates and plugins might come out any time, and you wouldn't want to miss them, would you? Then either regularly check the AC.earth web site, or register your email address here:
I promise your email address will NOT be used for any other purpose then informing you about updates of AC.earth. In particular I will NOT give your address to any third parties. You can unregister at any time by replying with "unsubscribe" in the subject line.
I've read and understood the text above, agree with it, and now finally want to download AC.earth. If you don't need the sources, but just want to run the program, select "Zipped binary".