2.1.4 Relevant Standards
The Windows Server Update Services protocols use and extend the following standards:
Hypertext Transfer Protocol - HTTP/1.1, as specified in [RFC2616]. This protocol enables file transfer from update server to update client.
SOAP Version 1.2 Part 1: Messaging Framework, as specified in [SOAP1.2-1/2003]. This protocol serves as the base protocol from which most of the internal protocols for WSUS are defined.