ExSite is available under either a commercial software license, or a free software license.
ExSite is maintained and supported by Exware Solutions, Inc. Exware provides support guarantees to its clients, including but not necessarily limited to upgrades, bug fixes and patches, customizations, new module development, software porting, hosting services, and the like. Click here for more information on how a commercial license can benefit your organization.
ExSite may be used (run, copied, redistributed) under the terms of the GPL. You have many freedoms in how you use the software with this license, but there is no guarantee of support, nor any warranty of any kind. This license may nevertheless be suitable for DIY web developers. (Note that particular web application plug-ins may carry their own licensing terms. Do not assume that a given plug-in also carries GPL licensing without consulting its documentation.)
ExSite functions as an Operating System for your website. Like a conventional operating system, it has a user interface, a kernel that provides basic system services, utility programs for administering the system, and an API that allows 3rd-party applications to run on it. It is important to understand the different roles these components play to understand the licensing terms of ExSite.
ExSite files and programs are released in two or more distributions:
In addition to the Free Software licencing terms outlined above, ExSite is also available under commercial licenses with full support and other benefits. Contact Exware Solutions, Inc. for more information on these alternate licensing arrangements.
The GPL is not specific about whether a "plug-in" module is part of a combined work (which would fall under the same license) or an independent work that is separately licensed. It is the wish of the ExSite copyright holders that plug-in web applications can optionally carry their own separate licencing terms.
For further clarity, therefore, the following addendum to the GPL is applied to the ExSite base distribution:
Linking ExSite statically or dynamically with other modules is making a combined work based on ExSite. Thus, the terms and conditions of the GNU General Public License cover the whole combination.
As a special exception, the copyright holders of ExSite give you permission to link ExSite with independent modules that communicate with ExSite solely through the ExSite Dynamic Content Driver interface, regardless of the license terms of these independent modules, and to copy and distribute them separately or as a combined work under terms of your choice, provided that every copy of a combined work is accompanied by a complete copy of the source code of the ExSite base distribution (the version of ExSite used to produce the combined work), being distributed under the terms of the GNU General Public License plus this exception. An independent module is a module which is not derived from or based on ExSite.
Note that people who make modified versions of ExSite are not obligated to grant this special exception for their modified versions; it is their choice whether to do so. The GNU General Public License gives permission to release a modified version without this exception; this exception also makes it possible to release a modified version which carries forward this exception.
Note that if a web application does not specify its own licencing terms as outlined here, then it defaults to the GPL.
The Perl and C code, HTML, graphics, and SQL schemas in the ExSite Base Distribution are copyright 2000-2011 by Exware Solutions, Inc.
Some tools and web applications make use of the Creative Commons-licensed Silk Icons, from http://www.famfamfam.com.
Copyrights for specific web applications are noted in their respective distributions.