This conformance level represents an XML document which does not necessarily have a root element, but is otherwise well-formed. This level of checking ensures that the stream being read or written can be consumed by any processor as an XML 1.0 external parsed entity (http://www.w3.org/TR/REC-xml#NT-extParsedEnt).

Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0