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+* Mono.Xml.Ext.dll readme
+
+** Introduction
+
+	Mono.Xml.Ext.dll holds those features listed below:
+
+	<ul>
+		* XQuery implementation
+		* custom XmlResolver
+		* DTMXPathNavigator (exactly the same one as XPathNavigator)
+	</ul>
+
+** XQuery implementations
+
+	XQuery is implemented in Mono.Xml.XPath2 namespace. The entry point
+	of XQuery command is Mono.Xml.XPath2.XQueryCommandImpl class. Below
+	is a simple example:
+
+	private void ExecuteXQuery (string xqueryString,
+		XPathNavigator input, XmlWriter output)
+	{
+		XQueryCommandImpl cmd = new XQueryCommandImpl ();
+		cmd.Load (new StringReader (xqueryString), null, null);
+		cmd.Execute (input, null, null, output);
+	}
+
+	It is designed to implement the latest working draft of W3C XQuery
+	specification (as of now 2004/07/24 version), while it keeps some
+	URI as old XQuery one (for example, http://www.w3.org/2003/11/xquery).
+	It is just for testing convenience; XQuery Use Cases is still based
+	on an old version).
+
+	Currently only XQueryCommandImpl and XmlArgumentList are intended
+	to be public (originally XQueryCommandImpl is not intended to be
+	public).
+
+	Note that it is highly unstable, buggy, subject to many changes.
+
+** DTMXPathNavigator
+
+	DTMXPathNavigator is an implementation of XPathNavigator which is
+	based on document table model aka DTM.
+
+	Actually DTMXPathNavigator is exactly the same as Mono's XPathDocument
+	implementation, so basically this means nothing for Mono users.
+