The CSLA .NET framework is Copyright by Marimer, LLC.
You can use this Software for any noncommercial purpose, including distributing derivative works. You can use this Software for any commercial purpose other than you may not use it, in whole or in part, to create a commercial framework product.
In short, you can use CSLA .NET and modify it to create other commercial or business software, you just can't take the framework itself, modify it and sell it as a product.
In return, the owner simply requires that you agree:
This Software License Agreement ("Agreement") is effective upon your use of CSLA .NET ("Software").
The CSLA .NET framework is Copyright 2013 by Marimer, LLC, Eden Prairie, MN, USA.
You must not remove any copyright notices from the Software source code.
The owner hereby grants a perpetual, non-exclusive, limited license to use the Software as set forth in this Agreement.
If you distribute the Software in source code form you must do so only under this License (i.e. you must include a complete copy of this License with your distribution).
You may distribute the Software in binary or object form with no requirement to display copyright notices to the end user. The binary or object form must retain the copyright notices included in the Software source code.
You may not sell the Software. If you create a software development framework based on the Software as a derivative work, you may not sell that derivative work. This does not restrict the use of the Software for creation of other types of non-commercial or commercial applications or derivative works.
The Software comes "as is", with no warranties. None whatsoever. This means no express, implied, statutory or other warranty, including without limitation, warranties of merchantability or fitness for a particular purpose, noninfringement, or the presence or absence of errors, whether or not discoverable. You, and your distributees, use this Software at your own risk. Also, you must pass this disclaimer on whenever you distribute the Software.
Neither Marimer, LLC nor any contributor to the Software will be liable for any type of direct damages or for any of those types of damages known as indirect, special, consequential, incidental, punitive or exemplary related to the Software or this License, to the maximum extent the law permits, no matter what legal theory it�s based on. Also, you must pass this limitation of liability on whenever you distribute the Software.
If you sue anyone over patents that you think may apply to the Software for a person's use of the Software, your license to the Software ends automatically.
The patent rights, if any, licensed hereunder only apply to the Software, not to any derivative works you make.
Your rights under this License end automatically if you breach it in any way.
Marimer, LLC reserves the right to release the Software under different license terms or to stop distributing the Software at any time. Such an election will not serve to withdraw this Agreement, and this Agreement will continue in full force and effect unless terminated as stated above.
This Agreement shall be construed and enforced in accordance with the laws of the state of Minnesota, USA.
Neither this Agreement nor any interest in this Agreement may be assigned by Licensee without the prior express written approval of Developer.
This Agreement terminates and supersedes all prior understandings or agreements on the subject matter hereof. This Agreement may be modified only by a further writing that is duly executed by both parties.
If any term of this Agreement is held by a court of competent jurisdiction to be invalid or unenforceable, then this Agreement, including all of the remaining terms, will remain in full force and effect as if such invalid or unenforceable term had never been included.
Headings used in this Agreement are provided for convenience only and shall not be used to construe meaning or intent.