What is ADMX? ADMX, short name for ADM XML, is used as the file extension for ADM XML files. .ADMX files are XML files that are used to store policy settings as administrative template Files. See the sample .ADMX file included below.

File Extension: .ADMX

MIME Type: text/xml

File Content: ADM XML

.ADMX files are ADM XML files, that are used to store policy settings as administrative template Files. Here is a sample .ADMX ADM XML file ControlPanel.admx:

<?xml version="1.0" encoding="utf-8"?>
<!--  (c) 2006 Microsoft Corporation  -->
<policyDefinitions xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  revision="1.0" schemaVersion="1.0" 
  xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
  <policyNamespaces>
    <target prefix="controlpanel" 
    namespace="Microsoft.Policies.ControlPanel" />
    <using prefix="windows" namespace="Microsoft.Policies.Windows" />
  </policyNamespaces>
  <resources minRequiredRevision="1.0" />
  <policies>
    <policy name="DisallowCpls" class="User" 
      displayName="$(string.DisallowCpls)" 
      explainText="$(string.DisallowCpls_Help)" 
      presentation="$(presentation.DisallowCpls)" 
      key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" 
      valueName="DisallowCpl">
      <parentCategory ref="windows:ControlPanel" />
      <supportedOn ref="windows:SUPPORTED_Win2k" />
      ...
    </policy>
    ...

.ADMX ADM XML file sample: Click sample.admx to download.

Since .ADMX files are in text format, you can use Notepad or any text editor to create or modify them. No special software is needed.

For for information on how to use .ADMX ADM XML files, see links below:

• Language Reference for Administrative Template Files, by Microsoft.