This tool is licensed under GNU Lesser General Public License, version 3 or later. The full legal
  text can be found in license-lgpl.txt, but it is also allowed to obey the following rules instead
  if you prefer that (legalese is complicated):

If you don't want to redistribute it or distribute modifications (aka you only want it for personal
  use), you may do whatever you want with it. The author of this tool claims no copyright over
  input, binary output or textual output (including error messages) generated by this tool.

If you do want to redistribute it, you must obey the LGPL. This means the following:
- You must credit the author. Don't claim it as your own. You may modify it and take credit for your
  modifications, but the author (Alcaro) must be credited for the original software.
- You must make it possible to replace your copy of this tool with another version, if anyone wants
  that. You must also offer all source codes and related files that are required to rebuild your
  modified tool to anyone who asks.
- If you modify this software, it must clearly be labeled as a modification, and you must provide
  full source code to anyone who asks.

The bundled retro.dll is snes9x, built from a version between 1.53 and 1.54 at May 7, 2012. The
  license for snes9x may be found in license-snes9x.txt.