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275 lines
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<!DOCTYPE html>
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<title>Embedthis Appweb 4.3.4 Documentation</title>
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<meta name="keywords" content="embedded web server, web server software, embedded HTTP, application web server,
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embedded server, small web server, HTTP server, library web server, library HTTP, HTTP library" />
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<meta name="description" content="Embedthis Sofware provides commercial and open source embedded web servers for
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<div class="version">Embedthis Appweb 4.3.4</div>
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<a href="../index.html">Home</a>
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> <b>Licenses</b>
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<h1>Quick Nav</h1>
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<li><a href="#gnuLicense">GNU License</a></li>
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</ul>
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<h1>See Also</h1>
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<ul class="nav">
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<li><a href="../guide/appweb/overview.html">Appweb Overview</a></li>
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<li><a href="../guide/appweb/features.html">Appweb Features</a></li>
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<li><a href="../product/releaseNotes.html">Release Notes</a></li>
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<div class="contentLeft">
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<h1>Open Source License Agreement</h1>
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<p>Embedthis Appweb is licensed according to the provisions of GNU GENERAL PUBLIC LICENSE below.
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Commercial licenses are also available from <a href="http://embedthis.com">Embedthis Software</a> for
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those who require them.</p>
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<a id="gnuLicense"></a>
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<h2>GNU GENERAL PUBLIC LICENSE. Version 2, June 1991</h2>
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<h3>Preamble</h3>
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<p>The licenses for most software are designed to take away your freedom to share and change it. By
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contrast, the GNU General Public License is intended to guarantee your freedom to share and change free
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software -- to make sure the software is free for all its users. This General Public License applies to
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most of the Free Software<br />
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Foundation's software and to any other program whose authors commit to using it. (Some other Free Software
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Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your
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programs, too.</p>
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<p>When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are
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designed to make sure that you have the freedom to distribute copies of free software (and charge for this
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service if you wish), that you receive source code or can get it if you want it, that you can change the
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software or use pieces of it in new free programs; and that you know you can do these things.</p>
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<p>To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to
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ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you
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distribute copies of the software, or if you modify it.</p>
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<p>For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the
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recipients all the rights that you have. You must make sure that they, too, receive or can get the source
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code. And you must show them these terms so they know their rights.</p>
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<p>We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which
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gives you legal permission to copy, distribute and/or modify the software.</p>
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<p>Also, for each author's protection and ours, we want to make certain that everyone understands that
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there is no warranty for this free software. If the software is modified by someone else and passed on, we
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want its recipients to know that what they have is not the original, so that any problems introduced by
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others will not reflect on the original authors' reputations.</p>
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<p>Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that
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redistributors of a free program will individually obtain patent licenses, in effect making the program
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proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free
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use or not licensed at all.</p>
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<p>The precise terms and conditions for copying, distribution and modification follow.</p>
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<hr />
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<h3>GNU GENERAL PUBLIC LICENSE</h3>
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<h3>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</h3>
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<p>0. This License applies to any program or other work which contains a notice placed by the copyright
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holder saying it may be distributed under the terms of this General Public License. The "Program", below,
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refers to any such program or work, and a "work based on the Program" means either the Program or any
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derivative work under copyright law: that is to say, a work containing the Program or a portion of it,
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either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is
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included without limitation in the term "modification".) Each licensee is addressed as "you".</p>
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<p>Activities other than copying, distribution and modification are not covered by this License; they are
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outside its scope. The act of running the Program is not restricted, and the output from the Program is
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covered only if its contents constitute a work based on the Program (independent of having been made by
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running the Program). Whether that is true depends on what the Program does.</p>
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<p>1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any
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medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright
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notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the
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absence of any warranty;<br />
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and give any other recipients of the Program a copy of this License along with the Program.</p>
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<p>You may charge a fee for the physical act of transferring a copy, and you may at your option offer
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warranty protection in exchange for a fee.</p>
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<p>2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on
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the Program, and copy and distribute such modifications or work under the terms of Section 1 above,
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provided that you also meet all of these conditions:</p>
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<p>a) You must cause the modified files to carry prominent notices stating that you changed the files and
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the date of any change.</p>
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<p>b) You must cause any work that you distribute or publish, that in whole or in part contains or is
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derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties
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under the terms of this License.</p>
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<p>c) If the modified program normally reads commands interactively when run, you must cause it, when
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started running for such interactive use in the most ordinary way, to print or display an announcement
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including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you
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provide a warranty) and that users may redistribute the program under these conditions, and telling the
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user how to view a copy of this License. (Exception: if the Program itself is interactive but does not
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normally print such an announcement, your work based on the Program is not required to print an
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announcement.)<br />
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<br />
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These requirements apply to the modified work as a whole. If identifiable sections of that work are not
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derived from the Program, and can be reasonably considered independent and separate works in themselves,
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then this License, and its terms, do not apply to those sections when you distribute them as separate
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works. But when you distribute the same sections as part of a whole which is a work based on the Program,
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the distribution of the whole must be on the terms of this License, whose permissions for other licensees
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extend to the entire whole, and thus to each and every part regardless of who wrote it.</p>
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<p>Thus, it is not the intent of this section to claim rights or contest your rights to work written
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entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or
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collective works based on the Program.</p>
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<p>In addition, mere aggregation of another work not based on the Program with the Program (or with a work
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based on the Program) on a volume of a storage or distribution medium does not bring the other work under
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the scope of this License.</p>
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<p>3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or
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executable form under the terms of Sections 1 and 2 above provided that you also do one of the
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following:</p>
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<p>a) Accompany it with the complete corresponding machine-readable source code, which must be distributed
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under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or,</p>
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<p>b) Accompany it with a written offer, valid for at least three years, to give any third party, for a
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charge no more than your cost of physically performing source distribution, a complete machine-readable
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copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a
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medium customarily used for software interchange; or,</p>
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<p>c) Accompany it with the information you received as to the offer to distribute corresponding source
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code. (This alternative is allowed only for noncommercial distribution and only if you received the program
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in object code or executable form with such an offer, in accord with Subsection b above.)</p>
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<p>The source code for a work means the preferred form of the work for making modifications to it. For an
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executable work, complete source code means all the source code for all modules it contains, plus any
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associated interface definition files, plus the scripts used to control compilation and installation of the
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executable. However, as a special exception, the source code distributed need not include anything that is
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normally distributed (in either source or binary form) with the major components (compiler, kernel, and so
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on) of the operating system on which the executable runs, unless that component itself accompanies the
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executable.</p>
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<p>If distribution of executable or object code is made by offering access to copy from a designated place,
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then offering equivalent access to copy the source code from the same place counts as distribution of the
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source code, even though third parties are not compelled to copy the source along with the object
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code.<br />
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<br />
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4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this
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License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will
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automatically terminate your rights under this License. However, parties who have received copies, or
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rights, from you under this License will not have their licenses terminated so long as such parties remain
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in full compliance.</p>
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<p>5. You are not required to accept this License, since you have not signed it. However, nothing else
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grants you permission to modify or distribute the Program or its derivative works. These actions are
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prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program
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(or any work based on the Program), you indicate your acceptance of this License to do so, and all its
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terms and conditions for copying, distributing or modifying the Program or works based on it.</p>
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<p>6. Each time you redistribute the Program (or any work based on the Program), the recipient
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automatically receives a license from the original licensor to copy, distribute or modify the Program
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subject to these terms and conditions. You may not impose any further restrictions on the recipients'
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exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to
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this License.</p>
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<p>7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason
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(not limited to patent issues), conditions are imposed on you (whether by court order, agreement or
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otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of
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this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License
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and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For
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example, if a patent license would not permit royalty-free redistribution of the Program by all those who
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receive copies directly or indirectly through you, then the only way you could satisfy both it and this
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License would be to refrain entirely from distribution of the Program.</p>
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<p>If any portion of this section is held invalid or unenforceable under any particular circumstance, the
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balance of the section is intended to apply and the section as a whole is intended to apply in other
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circumstances.</p>
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<p>It is not the purpose of this section to induce you to infringe any patents or other property right
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claims or to contest validity of any such claims; this section has the sole purpose of protecting the
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integrity of the free software distribution system, which is implemented by public license practices. Many
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people have made generous contributions to the wide range of software distributed through that system in
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reliance on consistent application of that system; it is up to the author/donor to decide if he or she is
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willing to distribute software through any other system and a licensee cannot impose that choice.</p>
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<p>This section is intended to make thoroughly clear what is believed to be a consequence of the rest of
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this License.<br />
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<br />
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8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by
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copyrighted interfaces, the original copyright holder who places the Program under this License may add an
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explicit geographical distribution limitation excluding those countries, so that distribution is permitted
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only in or among countries not thus excluded. In such case, this License incorporates the limitation as if
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written in the body of this License.</p>
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<p>9. The Free Software Foundation may publish revised and/or new versions of the General Public License
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from time to time. Such new versions will be similar in spirit to the present version, but may differ in
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detail to address new problems or concerns.</p>
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<p>Each version is given a distinguishing version number. If the Program specifies a version number of this
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License which applies to it and "any later version", you have the option of following the terms and
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conditions either of that version or of any later version published by the Free Software Foundation. If the
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Program does not specify a version number of this License, you may choose any version ever published by the
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Free Software Foundation.</p>
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<p>10. If you wish to incorporate parts of the Program into other free programs whose distribution
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conditions are different, write to the author to ask for permission. For software which is copyrighted by
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the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this.
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Our decision will be guided by the two goals of preserving the free status of all derivatives of our free
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software and of promoting the sharing and reuse of software generally.</p>
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<p>NO WARRANTY</p>
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<p>11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT
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PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
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PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
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ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
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DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
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<p>12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR
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ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
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DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
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INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
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OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER<br />
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PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.</p>
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<p>END OF TERMS AND CONDITIONS</p>
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<p>Copyright (C) 1989, 1991 Free Software Foundation, Inc.<br />
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</p>
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<p>Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it
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is not allowed.</p>
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<h3>Other Licenses</h3>
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<p>For third-party components, see additional licenses under <em>doc/licenses</em> in the source distribution
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or LICENSE.TXT in the binary distribution.</p>
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</div>
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</div>
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<p class="footnote">
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<a href="../product/copyright.html" >© Embedthis Software LLC, 2003-2013.
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All rights reserved. Embedthis, Appweb, ESP, Ejscript and Embedthis GoAhead are trademarks of Embedthis Software LLC.</a>
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</p>
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