I have more to write, but for now:
You have copyright as soon as you create a work, whether you want it or not, and you can't really lose it - you need to license your work somehow if you want grant access to others, even if your intent is to impose no restrictions. There are simple guides to assist choosing a license at
http://creativecommons.org/choose/zero/
and
http://paulmillr.com/posts/simple-descr ... -licenses/
Legally, on death the copyright rests with the estate of the deceased, for at least 50 years. So the question really is, what are the licensing terms.
The license on ehbasic is a free-for-non-commercial-use-with-attribution, which is better than nothing, but it is not one of the regular ones. In the unlikely event that anyone wanted to pursue a copyright claim it might be a mess. Things are simpler if the originator selects a standard license.
I urge everyone to pick a favourite license and slap it into each of their projects. Homebrew licenses are, arguably, better than nothing, but not a good idea.
restriction, any derivative work should include, in any binary image distributed,
the string "Derived from EhBASIC" and in any distribution that includes human
readable files a file that includes the above string in a human readable form
e.g. not as a comment in an HTML file.
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