License.txt

                 FreeFileSync: Terms of use

The FreeFileSync standard and Donation Edition
are for **private use** only:
https://freefilesync.org/faq.php#donation-edition

**Commercial use** requires buying the
FreeFileSync Business Edition: https://freefilesync.org/faq.php#business
This also applies to government organizations.

==================================================================

A. GNU General Public License
B. wxWidgets License
C. OpenSSL License
D. curl License
E. libssh2 License
F. PuTTY License

==================================================================
A.
                  GNU General Public License
                    Version 3, 29 June 2007

Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.

                            Preamble

The GNU General Public License is a free, copyleft license for
software and other kinds of works.

The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.

When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.

To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.

For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.

Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.

For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.

Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.

Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.

The precise terms and conditions for copying, distribution and
modification follow.

                       TERMS AND CONDITIONS

0. Definitions.

"This License" refers to version 3 of the GNU General Public License.

"Copyright" also means copyright-like laws that apply to other kinds of
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"The Program" refers to any copyrightable work licensed under this
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A "covered work" means either the unmodified Program or a work based
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To "propagate" a work means to do anything with it that, without
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To "convey" a work means any kind of propagation that enables other
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An interactive user interface displays "Appropriate Legal Notices"
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1. Source Code.

The "source code" for a work means the preferred form of the work
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A "Standard Interface" means an interface that either is an official
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The "System Libraries" of an executable work include anything, other
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The "Corresponding Source" for a work in object code form means all
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The Corresponding Source need not include anything that users
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The Corresponding Source for a work in source code form is that
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All rights granted under this License are granted for the term of
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permission to run the unmodified Program. The output from running a
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You may make, run and propagate covered works that you do not
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When you convey a covered work, you waive any legal power to forbid
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You may convey verbatim copies of the Program's source code as you
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keep intact all notices of the absence of any warranty; and give all
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You may charge any price or no price for each copy that you convey,
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You may convey a work based on the Program, or the modifications to
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  b) The work must carry prominent notices stating that it is
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  d) Convey the object code by offering access from a designated
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"Installation Information" for a User Product means any methods,
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If you convey an object code work under this section in, or with, or
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if neither you nor any third party retains the ability to install
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The requirement to provide Installation Information does not include a
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Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
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unpacking, reading or copying.

7. Additional Terms.

"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.

When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.)  You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.

Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:

  a) Disclaiming warranty or limiting liability differently from the
  terms of sections 15 and 16 of this License; or

  b) Requiring preservation of specified reasonable legal notices or
  author attributions in that material or in the Appropriate Legal
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All other non-permissive additional terms are considered "further
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You may not propagate or modify a covered work except as expressly
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However, if you cease all violation of this License, then your
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9. Acceptance Not Required for Having Copies.

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10. Automatic Licensing of Downstream Recipients.

Each time you convey a covered work, the recipient automatically
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THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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17. Interpretation of Sections 15 and 16.

If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
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Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

==================================================================
B.
                      wxWidgets License

wxWindows Library Licence, Version 3.1

Copyright (c) 1998-2005 Julian Smart, Robert Roebling et al

Everyone is permitted to copy and distribute verbatim copies
of this licence document, but changing it is not allowed.

                     WXWINDOWS LIBRARY LICENCE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

This library is free software; you can redistribute it and/or modify it
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This library is distributed in the hope that it will be useful, but WITHOUT
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EXCEPTION NOTICE

1. As a special exception, the copyright holders of this library give
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3. If you copy code from files distributed under the terms of the GNU
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==================================================================
C.
                        OpenSSL License

                        Apache License
                  Version 2.0, January 2004
               https://www.apache.org/licenses/

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==================================================================
D.
                           curl License

COPYRIGHT AND PERMISSION NOTICE

Copyright (c) 1996 - 2021, Daniel Stenberg, daniel@haxx.se, and many
contributors, see the THANKS file.

All rights reserved.

Permission to use, copy, modify, and distribute this software for any purpose
with or without fee is hereby granted, provided that the above copyright
notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of a copyright holder shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization of the copyright holder.

==================================================================
E.
                 libssh2 License

Copyright (c) 2004-2007 Sara Golemon <sarag@libssh2.org>
Copyright (c) 2005,2006 Mikhail Gusarov <dottedmag@dottedmag.net>
Copyright (c) 2006-2007 The Written Word, Inc.
Copyright (c) 2007 Eli Fant <elifantu@mail.ru>
Copyright (c) 2009-2021 Daniel Stenberg
Copyright (C) 2008, 2009 Simon Josefsson
Copyright (c) 2000 Markus Friedl
Copyright (c) 2015 Microsoft Corp.
All rights reserved.

Redistribution and use in source and binary forms,
with or without modification, are permitted provided
that the following conditions are met:

  Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

  Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the following
  disclaimer in the documentation and/or other materials
  provided with the distribution.

  Neither the name of the copyright holder nor the names
  of any other contributors may be used to endorse or
  promote products derived from this software without
  specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.

==================================================================
F.
                     PuTTY License

PuTTY is copyright 1997-2022 Simon Tatham.

Portions copyright Robert de Bath, Joris van Rantwijk, Delian
Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, Markus
Kuhn, Colin Watson, Christopher Staite, Lorenz Diener, Christian
Brabandt, Jeff Smith, Pavel Kryukov, Maxim Kuznetsov, Svyatoslav
Kuzmich, Nico Williams, Viktor Dukhovni, Josh Dersch, Lars Brinkhoff,
and CORE SDI S.A.

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation files
(the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of the Software,
and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.