<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<module xmlns="http://www.test.com/new">
  <content>
     <object ....>
        <content>
          <object>
            ....Hier befinden sich weitere unterknoten...
          </object>
          <object>
            ....Hier befinden sich weitere unterknoten...
          </object>
          <object>
            ....Hier befinden sich weitere unterknoten...
          </object>
          <object>
            ....Hier befinden sich weitere unterknoten...
          </object>
        </content>
     </object>
  </content>
</module>

        Dim doc As XmlDocument
        Dim ns As XmlNamespaceManager
        Dim nodes As XmlNodeList
        Dim nav As XPathNavigator 
        Dim nodes2 As XPathNodeIterator
 
        ' Create a new XmlDocument   
        doc = New XmlDocument
 
        ' Load data   
        doc.Load("C:\Temp\test.xml")
 
        ' Set up namespace manager for XPath   
        ns = New XmlNamespaceManager(doc.NameTable)
        ns.AddNamespace("ns1", "http://www.test.com/new")
        nodes = doc.SelectNodes( _
          "/ns1:module/ns1:content/ns1:object/ns1:content/ns1:object", ns)
 
        For Each node As XmlNode In nodes
            Try
 
                If ((node.Attributes("number").Value) = "1.3") Then
 
                    'In dem ausgwählten knoten befinden sich unterknoten von 
                    ' denen nun attribute gelesen undweitere knoten gelesen 
                    ' werden sollen
                    nav = node.CreateNavigator
                    nodes2 = nav.SelectDescendants("content", nav.NamespaceURI, _
                      True)
 
                    Exit For
                End If
            Catch ex As Exception
 
            End Try
 
        Next