Tom Ring wrote:

That's all there is in either version of YO that contains the
"copyright" in any form, case insensitive. I am ignoring the companion
programs. Interestingly, the .EXE files do not include a copyright
notice internal to the program, at least in plain text. The only thing
that shows when running the program (v6.x) is "Copyright 1995 by Brian
Beezley, K6STI All Rights Reserved" at the top line on the files menu.
I am writing the last from memory since it's a DOS program, so I might
not have it perfect.

Under current U.S. law, a copyright notice isn't required in order to
secure a copyright; the copyright automatically exists as soon as the
work is created. Adding a copyright notice does bring some advantages
if a lawsuit is filed, however.

Disclaimer: I'm not an attorney.

Roy Lewallen, W7EL