This header is present at the beginning of every message in this protocol. The purpose of this header is to describe the type of the message.
file:///D:/programs/RFSPAC/XML-RDPEFS/_rfc_ms-rdpefs2_2_1_1.xml
 public RdpefsPDU(Component_Values component, PacketId_Values packetId)
 {
     this.Header = new RDPDR_HEADER(component, packetId);
 }
 public RdpefsPDU()
 {
     this.Header = new RDPDR_HEADER();
 }