This method allows you add additional features to an underlying XmlReader object. The underlying XmlReader object can be another XmlReader object created by the Create method, or an XmlReader object created using one of the concrete XmlReader implementations.
A default XmlUrlResolver with no credentials is used to access any external resources such as a schema. If the external resource is located on a network resource that requires authentication, specify an XmlResolver with the necessary credentials using the XmlReaderSettings::XmlResolver property.
You can use one of the following methods to control which resources the XmlReader can access:
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)