AutoHotkey.exe included under terms of the GPLv3 ("any later version")
https://www.autohotkey.com/download/
Source: https://github.com/Lexikos/AutoHotkey_L/

AutoHotkey

Copyright 2003-2009 Chris Mallett (support@autohotkey.com)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.