Microsoft Knowledge Base Article 323639 contains the following summary:
This step-by-step article describes how to create custom
Administrative Templates to use with Group Policy settings in a Windows
Group Policy templates provide an interface that you can use to apply registry changes to the target computer. Unlike policy settings that you create in Microsoft Windows NT 4.0, if you use Group Policy to apply registry changes, you can make these registry changes non-persistent. This means that when you log off the computer or when you shut down the computer, the policy settings are removed. To create non-persistent policy settings, you must create the registry changes on the target computer in one of the following registry locations:
|•||For computer policy settings:
|•||For user policy settings:
Microsoft recommends that you copy the registry structure of the existing component when you create the Administrative Template. For example, you may want to modify a component in the following registry location:
In this situation, create an Administrative Template that references the following registry location:
NOTE: If Group Policy changes the target computer's registry in a
location other than one of these locations, these changes are persistent. These
changes are not removed when you log off the computer or when you shut down the
computer. This behavior is also known as "tattooing" the registry.
Although you can edit the Administrative Templates that are included with Windows 2000, Microsoft recommends that you either create a new template or edit a copy of an existing Administrative Template. You must do so because the existing templates may have been updated or changed if you installed service packs or other updates to Windows.