ADMX files are XML-based administrative template files, which were introduced with Microsoft Windows Vista Service Pack 1 and used instead of ADM files. ADMX files are language-neutral and support multilingual display of policy settings. The file structure comprises a language-neutral (.admx) file and a language-specific (.adml) resource file. Multilingual support allows administrators in different countries to work with the same ADMX files and see the descriptions of the Group Policy settings in the local language. You can only manage ADMX file-based Group Policy settings on computers running Microsoft Windows Vista Service Pack 1 or later. You can create and edit ADMXfiles using any XML-compatible editor.
Microsoft Windows manages ADMX files from the central store that is a central location in the domain. Before you install the UPA Console on a computer running Microsoft Windows Vista Service Pack 1 or later, manually create a central store on the domain controller. The central store enables you to read ADMX files from a single domain-level location on the domain controller. You cannot manage ADMX files if you do not create a central store. For more information about creating the central store, see the Microsoft Windows documentation.
The ADMX and ADML files are available in the default local policy definition folder, C:\Windows\SYSVOL\sysvol\%Domain%\Policies\PolicyDefinitions. When you install the UPA Console on a computer running Microsoft Windows Vista Service Pack 1 or later, the installation process replaces the default local policy definition folder with a local folder, \installDir\Local UPA\domain name\, and redirects all future ADMX files to the local folder. UPA uses this local folder to temporarily store and work with ADMX files.
To Include ADMX Files in the Web Console
Login to the Web Console as an Administrator.
Navigate to the Universal Policies tab.
Select a Universal Policy.
Click +.
In the Add Policies tab, click Include Policy Templates.
Select the templates to be included in the Universal Policy.
Click Include, to include the ADMX template to the Universal Policy.