choosealicense.com/_licenses/ms-rl.txt

---
title: Microsoft Reciprocal License
nickname: Ms-RL
category: Microsoft
layout: license
permalink: /licenses/ms-rl/
source: http://opensource.org/licenses/ms-rl
redirect_from: /licenses/ms/
hidden: true 

description: "Microsoft Open Source licensing"


required:
  - include-copyright


permitted:
  - commercial-use
  - modifications
  - distribution
  - patent-grant
  - private-use

forbidden:
  - no-liability
  - trademark-use
---

                Microsoft Reciprocal License (MS-RL)

This license governs use of the accompanying software. If you use the
software, you accept this license. If you do not accept the license,
do not use the software.

1. Definitions
        The terms "reproduce," "reproduction," "derivative works," and
        "distribution" have the same meaning here as under U.S. copyright law.
        A "contribution" is the original software, or any additions or changes
        to the software.
        A "contributor" is any person that distributes its
        contribution under this license. "Licensed patents" are a
        contributor's patent claims that read directly on its contribution.

2. Grant of Rights
        (A)     Copyright Grant - Subject to the terms of this license, including
                the license conditions and limitations in section 3, each contributor
                grants you a non-exclusive, worldwide, royalty-free copyright license
                to reproduce its contribution, prepare derivative works of its
                contribution, and distribute its contribution or any derivative works
                that you create.
        (B)     Patent Grant- Subject to the terms of this license, including the
                license conditions and limitations in section 3, each contributor
                grants you a non-exclusive, worldwide, royalty-free license under
                its licensed patents to make, have made, use, sell, offer for sale,
                import, and/or otherwise dispose of its contribution in the
                software or derivative works of the contribution in the software.

3. Conditions and Limitations
        (A)     Reciprocal Grants - For any file you distribute that contains code
                from the software (in source code or binary format), you must
                provide recipients the source code to that file along with a copy
                of this license, which license will govern that file. You may
                license other files that are entirely your own work and do not
                contain code from the software under any terms you choose.
        (B)     No Trademark License - This license does not grant you rights to
                use any contributors' name, logo, or trademarks.
        (C)     If you bring a patent claim against any contributor over patents
                that you claim are infringed by the software, your patent license
                from such contributor to the software ends automatically.
        (D)     If you distribute any portion of the software, you must retain all
                copyright, patent, trademark, and attribution notices that are
                present in the software.
        (E)     If you distribute any portion of the software in source code form,
                you may do so only under this license by including a complete copy
                of this license with your distribution. If you distribute any
                portion of the software in compiled or object code form, you may
                only do so under a license that complies with this license.
        (F)     The software is licensed "as-is." You bear the risk of using it.
                The contributors give no express warranties, guarantees or
                conditions. You may have additional consumer rights under your
                local laws which this license cannot change. To the extent
                permitted under your local laws, the contributors exclude the
                implied warranties of merchantability, fitness for a particular
                purpose and non-infringement.