Other Enhancements to the GPMC
Advanced Group Policy Management (AGPM) adds a History tab and an Extensions tab to extend the functionality of the Group Policy Management Console (GPMC).
AGPM adds a History tab to all Group Policy objects (GPOs) and Group Policy links displayed in the GPMC. The features of the History tab in the details pane of a GPO are the same as those of the History window displayed through the Change Control tab. For information about these features, see History Window.
In the Microsoft Windows Server® 2003 operating system, AGPM adds an Extensions tab to all GPOs and Group Policy links displayed in the GPMC. This tab lists all extensions that have settings in the GPO (or all registered extensions if Show all registered extensions is checked) and identifies them as part of the user or computer context.