This document addresses developers of application programs and explains how their programs can communicate interactively with Entire Net-Work. Entire Net-Work provides a user exit interface that allows user-defined programs to be called before connecting or disconnecting a session or before sending or receiving data. Entire Net-Work also provides a Programmable Command Interface that allows application programs to issue Entire Net-Work operator commands and process results from the commands.

Information for the application programmer is provided under the following headings:

User Exit Interface	Describes how to program into the user exit interface.
Programmable Command Interface	Describes how to use the programmable command interface.