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--- |
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title: Microsoft Reciprocal License |
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spdx-id: MS-RL |
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description: An open source license with a patent grant similar to the <a href="/licenses/ms-pl/">Microsoft Public License</a>, with the additional condition that any source code for any derived file be provided under this license. |
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how: Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file. |
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using: |
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permissions: |
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- commercial-use |
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- modifications |
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- distribution |
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- patent-use |
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- private-use |
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conditions: |
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- disclose-source |
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- include-copyright |
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- same-license--file |
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limitations: |
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- warranty |
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- trademark-use |
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--- |
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Microsoft Reciprocal License (Ms-RL) |
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This license governs use of the accompanying software. If you use the |
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software, you accept this license. If you do not accept the license, do not |
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use the software. |
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1. Definitions |
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The terms "reproduce," "reproduction," "derivative works," and "distribution" |
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have the same meaning here as under U.S. copyright law. |
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A "contribution" is the original software, or any additions or changes to the |
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software. |
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A "contributor" is any person that distributes its contribution under this |
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license. |
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"Licensed patents" are a contributor's patent claims that read directly on its |
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contribution. |
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2. Grant of Rights |
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(A) Copyright Grant- Subject to the terms of this license, including the |
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license conditions and limitations in section 3, each contributor grants |
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you a non-exclusive, worldwide, royalty-free copyright license to |
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reproduce its contribution, prepare derivative works of its contribution, |
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and distribute its contribution or any derivative works that you create. |
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(B) Patent Grant- Subject to the terms of this license, including the |
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license conditions and limitations in section 3, each contributor grants |
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you a non-exclusive, worldwide, royalty-free license under its licensed |
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patents to make, have made, use, sell, offer for sale, import, and/or |
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otherwise dispose of its contribution in the software or derivative works |
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of the contribution in the software. |
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3. Conditions and Limitations |
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(A) Reciprocal Grants- For any file you distribute that contains code |
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from the software (in source code or binary format), you must provide |
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recipients the source code to that file along with a copy of this |
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license, which license will govern that file. You may license other files |
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that are entirely your own work and do not contain code from the software |
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under any terms you choose. |
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(B) No Trademark License- This license does not grant you rights to use |
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any contributors' name, logo, or trademarks. |
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(C) If you bring a patent claim against any contributor over patents that |
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you claim are infringed by the software, your patent license from such |
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contributor to the software ends automatically. |
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(D) If you distribute any portion of the software, you must retain all |
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copyright, patent, trademark, and attribution notices that are present in |
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the software. |
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(E) If you distribute any portion of the software in source code form, |
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you may do so only under this license by including a complete copy of |
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this license with your distribution. If you distribute any portion of the |
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software in compiled or object code form, you may only do so under a |
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license that complies with this license. |
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(F) The software is licensed "as-is." You bear the risk of using it. The |
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contributors give no express warranties, guarantees, or conditions. You |
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may have additional consumer rights under your local laws which this |
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license cannot change. To the extent permitted under your local laws, the |
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contributors exclude the implied warranties of merchantability, fitness |
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for a particular purpose and non-infringement. |
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