RE: [xml-dev] XML:lang, clarification demanded

Copy the schema from http://www.w3.org/2001/03/xml.xsd to your local file
system, change the schemaLocation URL to the xml.xsd that's on your local
file system:

<xs:import namespace="http://www.w3.org/XML/1998/namespace"
schemaLocation="file:///d:/foo/bar/xml.xsd"/>

And you should be set.