10.2. Group Policy Preference Extensions Architecture and Installation Instructions
As you'll recall from previous chapters, the magic of Group Policy happens in three steps:
You use a management station, which has the GPMC, and the Group Policy Editor, which has a snap-in for the tool you want to use.
A GPO is created and lives on your Domain Controllers.
The directive you put into the GPO (from your management station) is processed by a particular CSE on the target system.
First things : Your management station needs to have the updated capability of creating and managing new features. You saw this, for instance, when you upgraded to Windows Vista and you got the ability to do cool new stuff like manage the Windows firewall with advanced security ...