A Typical Call Sequence

When a Microsoft Exchange Server administrator performs actions on a custom property page, a sequence of Administrator program functions and Administrator extension DLL functions must be called.

The following illustrations show the Administrator program and extension DLL responses. The shaded sections show custom functionality to be created by application developers. Arrows indicate the movement of control from one program to the other as function calls are made.

For more information on these functions, see Using Administrator Extension Functions (Called by Administrator Program) and Using Administrator Extension Functions (Called by Extension DLL).

Note  Although the following sequence includes EDKCFG function calls for packing and unpacking data, you can format the extension data attribute any way you choose. You are not required to pack extension data before writing it to the directory.

In the following table, click an action to see the sequence of function calls made when an administrator performs that action, such as selecting an application through the Microsoft Exchange Server Administrator program.

Illustrated Sequence of Function Calls