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    copied!<p>Perhaps your XML processor is ignoring the !ENTITY declarations because they are contained within an otherwise empty DTD. </p> <p>Do you have a DTD you could use to validate this document? Lacking a DTD or schema, you can't really say the document is valid. Try running it through an online XML validation service like the one at URL: <a href="http://www.validome.org/xml/validate/" rel="nofollow noreferrer" title="XML Validator">http://www.validome.org/xml/validate/</a></p> <p>Here's an amended version of your document with a DTD I whipped up. See if this helps. </p> <hr> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;!DOCTYPE configuration [ &lt;!ELEMENT configuration (configSections+, connectionStrings+, MyCustomSection)&gt; &lt;!ELEMENT configSections (section+)&gt; &lt;!ELEMENT section EMPTY&gt; &lt;!ATTLIST section name CDATA #REQUIRED&gt; &lt;!ATTLIST section type CDATA #REQUIRED&gt; &lt;!ELEMENT connectionStrings (add+)&gt; &lt;!ELEMENT add EMPTY&gt; &lt;!ATTLIST add name CDATA #REQUIRED&gt; &lt;!ATTLIST add providerName CDATA #REQUIRED&gt; &lt;!ATTLIST add connectionString CDATA #REQUIRED&gt; &lt;!ELEMENT MyCustomSection (#PCDATA)&gt; &lt;!ENTITY MyStorageLocation "\\MyServer\MyStorageFolder"&gt; &lt;!ENTITY MyDatabaseServer "devdb01"&gt; ]&gt; &lt;configuration&gt; &lt;configSections&gt; &lt;section name="MyCustomSection" type="MyCustomSectionHandler,MyAssembly"/&gt; &lt;/configSections&gt; &lt;connectionStrings&gt; &lt;add name="MyConnectionString" providerName="System.Data.SqlClient" connectionString="Server=&amp;MyDatabaseServer;;Database=MyDatabase;"/&gt; &lt;/connectionStrings&gt; &lt;MyCustomSection&gt;&amp;MyStorageLocation;&lt;/MyCustomSection&gt; &lt;/configuration&gt; </code></pre>
 

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