The Thunderstone file converter plugin (anytotx) may utilize Info-ZIP's unzip utility to unpack ZIP archive files (*.zip). The unzip software is governed by the Info-ZIP license reproduced below:

This is version 2002-Feb-16 of the Info-ZIP copyright and license.
The definitive version of this document should be available at
ftp://ftp.info-zip.org/pub/infozip/license.html indefinitely.

Copyright (c) 1990-2002 Info-ZIP.  All rights reserved.

For the purposes of this copyright and license, "Info-ZIP" is defined as
the following set of individuals:

Mark Adler, John Bush, Karl Davis, Harald Denker, Jean-Michel Dubois,
Jean-loup Gailly, Hunter Goatley, Ian Gorman, Chris Herborth, Dirk
Haase, Greg Hartwig, Robert Heath, Jonathan Hudson, Paul Kienitz,
David Kirschbaum, Johnny Lee, Onno van der Linden, Igor Mandrichenko,
Steve P. Miller, Sergio Monesi, Keith Owens, George Petrov, Greg
Roelofs, Kai Uwe Rommel, Steve Salisbury, Dave Smith, Christian
Spieler, Antoine Verheijen, Paul von Behren, Rich Wales, Mike White

This software is provided "as is," without warranty of any kind,
express or implied.  In no event shall Info-ZIP or its contributors be
held liable for any direct, indirect, incidental, special or
consequential damages arising out of the use of or inability to use
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. Redistributions of source code must retain the above copyright notice,
   definition, disclaimer, and this list of conditions.

2. Redistributions in binary form (compiled executables) must reproduce
   the above copyright notice, definition, disclaimer, and this list
   of conditions in documentation and/or other materials provided with
   the distribution.  The sole exception to this condition is
   redistribution of a standard UnZipSFX binary as part of a
   self-extracting archive; that is permitted without inclusion of
   this license, as long as the normal UnZipSFX banner has not been
   removed from the binary or disabled.

3. Altered versions--including, but not limited to, ports to new
   operating systems, existing ports with new graphical interfaces,
   and dynamic, shared, or static library versions--must be plainly
   marked as such and must not be misrepresented as being the original
   source.  Such altered versions also must not be misrepresented as
   being Info-ZIP releases--including, but not limited to, labeling of
   the altered versions with the names "Info-ZIP" (or any variation
   thereof, including, but not limited to, different capitalizations),
   "Pocket UnZip," "WiZ" or "MacZip" without the explicit permission
   of Info-ZIP.  Such altered versions are further prohibited from
   misrepresentative use of the Zip-Bugs or Info-ZIP e-mail addresses
   or of the Info-ZIP URL(s).

4. Info-ZIP retains the right to use the names "Info-ZIP," "Zip,"
   "UnZip," "UnZipSFX," "WiZ," "Pocket UnZip," "Pocket Zip," and
   "MacZip" for its own source and binary releases.

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