Original IO version Copyright  2001 Michael Bishop
IO DLL version 1 Copyright  2001-2002 Nullsoft, Inc., ORTIM
IO DLL version 2 Copyright  2003-2009 Amir Szekely, Joost Verburg, Dave Laundon
IOEx DLL (changed from original IO 2) Copyright  2004-2005 Diego Pedroso 
IOEx DLL (starting at v.2.4.5) Copyright  2006-2019 SuperPat

This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented;
   you must not claim that you wrote the original software.
   If you use this software in a product, an acknowledgment in the
   product documentation would be appreciated but is not required.
2. Altered versions must be plainly marked as such,
   and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any distribution.
