Using Compiler
==============
Exerb:
    Author: Yuya Kato
    License: LGPL and Ruby's License <http://exerb.sourceforge.jp/man/doc/license.ja.html>
    URL: http://exerb.sourceforge.jp/


Using Interpreter
=================
ruby:
    Author: Matz
    License: Ruby's License
    URL: http://ruby-lang.org/


Using Images
==========
ruby_logo_text_bottom.png:
ruby_ns.ico:
    Author: Ce Jacas <evangelino.valverde@gmail.com>
    License: Creative Commons Attribution-Share Alike
             <http://creativecommons.org/licenses/by-sa/3.0/deed>


Compiled Libraries
==================
WxRuby2:
    Copyright (c) 2004-2007 wxRuby Development Team
    License: MIT/X11 License
    URL: http://wxruby.rubyforge.org/

ROpt:
    Author: Kaoru Shirai <shirai@korinkan.co.jp>
    License: Ruby's License
    URL: http://devel.korinkan.co.jp/ruby-ropt/

rbuconv:
    (c) 2003 by yoshidam
    License: Ruby's License
    URL: http://www.yoshidam.net/Ruby_ja.html

Zip/Ruby:
    Copyright (c) 2008,2009 SUGAWARA Genki <sgwr_dts@yahoo.co.jp>
    All rights reserved.
    License: New BSD License
    URL: http://zipruby.rubyforge.org/

libzip (in the Zip/Ruby):
    Authors: Dieter Baron <dillo@giga.or.at> and Thomas Klausner <tk@giga.or.at>
    License: MIT/X11 License
    URL: http://www.nih.at/libzip/
    FTP-URL: ftp://ftp.nih.at/pub/nih/libzip

zlib (zlib1.dll):
    Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
    License: zlib license
    URL: http://www.zlib.net/