Adding a doctype to System.Xml.XmlDocument

Doc.AppendChild _
( _
    Doc.CreateDocumentType _
    ( _
        name:="html", _
        publicID:="-//W3C//DTD XHTML 1.0 Strict//EN", _
        systemID:="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd", _
        internalSubset:=Nothing _
    ) _
)