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      <div class="breadcrumb"><a href="/">Home</a> » <a href="/licenses">Licenses</a></div>

      <h1 property="dc:title">Microsoft Reciprocal License</h1>
      <div style="display:none;"><code property="spdx:deprecated">false</code></div>
      <h2>Full name</h2>
          <p style="margin-left: 20px;"><code property="spdx:name">Microsoft Reciprocal License</code></p>

      <h2>Short identifier</h2>
          <p style="margin-left: 20px;"><code property="spdx:licenseId">MS-RL</code></p>

      <h2>Other web pages for this license</h2>
          <div style="margin-left: 20px;">
            <ul>
             <li>
               http://www.microsoft.com/opensource/licenses.mspx [no longer live]
             </li>
             <li>
               <a href="https://opensource.org/licenses/MS-RL" rel="rdfs:seeAlso" isValid=true isLive=true isWayBackLink=false match=N/A timestamp=2025-07-01T14:56:33Z>https://opensource.org/licenses/MS-RL</a>
               <!--Tentative way of displaying information <p>isValid: true, isLive: true, isWayBackLink: false, match: N/A, timestamp: 2025-07-01T14:56:33Z</p> -->
             </li>
           </ul>
          </div>

      <div property="spdx:isOsiApproved" style="display: none;">true</div>

      <h2 id="notes">Notes</h2>
          <p style="margin-left: 20px;">None</p>

      <h2 id="licenseText">Text</h2>
      
      <blockquote cite="https://spdx.github.io/spdx-spec/v2.3/license-matching-guidelines-and-templates/">
          <div style="border: 2px solid grey; padding: 8px">
		      Text in italicized blue is omittable (see <a href="https://spdx.github.io/spdx-spec/v2.3/license-matching-guidelines-and-templates/#b35-guideline-omittable-text">Matching Guidelines B.3.5</a>).
		      License or exception text will match to the text for the specified identifier if it either includes or excludes this omittable text.
			  <br/>
			  <br/>
			  Text in red is replaceable (see <a href="https://spdx.github.io/spdx-spec/v2.3/license-matching-guidelines-and-templates/#b34-guideline-replaceable-text">Matching Guidelines B.3.4</a>).
			  License or exception text will match to the text for the specified identifier if it includes a permitted variant of this replaceable text.
			  The permitted variants can be found in the corresponding regular expression as shown in title text visible by hovering over the red text.
	      </div>
	  </blockquote>

      <div property="spdx:licenseText" class="license-text">
      
      <div class="optional-license-text"> 
         <p>Microsoft Reciprocal License (Ms-RL)</p>

      </div>

      <p>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.</p>

<ul style="list-style:none">
        
<li>
            <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> 1.</span></var>
          Definitions
            <br />
   The terms &quot;reproduce,&quot; &quot;reproduction,&quot; &quot;derivative works,&quot;
                 and &quot;distribution&quot; have the same meaning here as under U.S. copyright law.

          <p>A &quot;contribution&quot; is the original software, or any additions or changes to the software.</p>

            <p>A &quot;contributor&quot; is any person that distributes its contribution under this license.</p>

            <p>&quot;Licensed patents&quot; are a contributor&apos;s patent claims that read directly on its
             contribution.</p>

        </li>
        
<li>
            <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> 2.</span></var>
          Grant of Rights
          
<ul style="list-style:none">
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (A)</span></var>
              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.
            </li>
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (B)</span></var>
              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.
            </li>
            
</ul>
        </li>
        
<li>
            <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> 3.</span></var>
          Conditions and Limitations
          
<ul style="list-style:none">
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (A)</span></var>
              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.
            </li>
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (B)</span></var>
              No Trademark License- This license does not grant you rights to use any contributors&apos;
                 name, logo, or trademarks.
            </li>
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (C)</span></var>
              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.
            </li>
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (D)</span></var>
              If you distribute any portion of the software, you must retain all copyright, patent,
                 trademark, and attribution notices that are present in the software.
            </li>
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (E)</span></var>
              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.
            </li>
               
<li>
                  <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> (F)</span></var>
              The software is licensed &quot;as-is.&quot; 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.
            </li>
            
</ul>
        </li>
      
</ul>
    
      </div>

      <h2  id="licenseHeader">Standard License Header</h2>
      <div property="spdx:standardLicenseHeader" class="license-text">
        <p style="font-style: italic">There is no standard license header for the license</p>
        
      </div>
      <div property="spdx:standardLicenseTemplate" style="display: none;">
      &lt;&lt;beginOptional&gt;&gt;Microsoft Reciprocal License (Ms-RL)&#10;&#10;&lt;&lt;endOptional&gt;&gt;&#10;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.&#10;&#10;   &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;1.&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; Definitions&#10;   The terms &quot;reproduce,&quot; &quot;reproduction,&quot; &quot;derivative works,&quot; and &quot;distribution&quot; have the same meaning here as under U.S. copyright law.&#10;   A &quot;contribution&quot; is the original software, or any additions or changes to the software.&#10;&#10;   A &quot;contributor&quot; is any person that distributes its contribution under this license.&#10;&#10;   &quot;Licensed patents&quot; are a contributor&#39;s patent claims that read directly on its contribution.&#10;&#10;   &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;2.&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; Grant of Rights&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(A)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; 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.&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(B)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; 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.&#10;   &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;3.&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; Conditions and Limitations&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(A)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; 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.&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(B)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; No Trademark License- This license does not grant you rights to use any contributors&#39; name, logo, or trademarks.&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(C)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; 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.&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(D)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution notices that are present in the software.&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(E)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; 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.&#10;      &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;(F)&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; The software is licensed &quot;as-is.&quot; 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.
      </div>

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