System.XML

System.XML.XMLElement

Represents an attribute
Valid and default values for the attribute are defined in the document type definition
By default an XML element name is determined by the class or member name
For example a class called MyClass with a field named MyFlag produces an XML element tag <MyFlag>
This default behaviur can be changed if you want to give you element a different name.

Dim objXMLElement As System.XML.XMLElement 
With objXMLElement 
   .AppendChild 
   .InnerText 
   .SetAttribute 
End With 

An element can have one or more attributes

System.XML.XMLNode

Represents a single node in the XML document.

objXMLDocument.ChildNodes.Item(2).InnerXML 
.SelectNodes("---") ?? 

System.XML.XMLNodeList