Specifically Appendix B:
		Describes how a course communicates with a "parent" frame
		Defines a series of function calls that are defined for saving the different “file” information in the parent frame
		How a course can retrieve information from parent frame directly
		How a parent frame communicates with server
	Characteristics of Appendix B include:
		Protocol for the parent frame communication is not defined (this allows use of any communication including HACP)
		Most implementations have the parent frame using a Java applet handling the communication.
		When courses start, the parent frame must obtain the entire environment information (including previous history) from the server.