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Group Policy ADMX and ADML

Group Policy ADMX and ADML. Configuration of a central store. Overview. Group Policy Overview . admx and . adml files Group policy integration Local Central Store Benefits Limitations Video. Group Policy. Prior to Windows Vista/Server 2008 we used . adm files in group policy

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Group Policy ADMX and ADML

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  1. Group Policy ADMX and ADML Configuration of a central store

  2. Overview • Group Policy Overview • .admx and .adml files • Group policy integration • Local • Central Store • Benefits • Limitations • Video

  3. Group Policy • Prior to Windows Vista/Server 2008 we used .adm files in group policy • Proprietary file format • Requires that administrators have a local copy of all .adm files • Requires copying of the adm file to specific group policy object sysvol\domain\policies\<GUID> directories • About 2MB in size, causes lots of replications issues. (2MB * 1000 files = 2GB of network traffic)

  4. .admx and .adml • Newer group policy object files based on xml and supports language specific variants (.adml) • Supported natively by Windows Vista and later operating systems • Smaller foot print than previous .adm files

  5. Group Policy Integration • Local Store • %systemroot%\policyDefinitions • Central Store • %systemroot%\sysvol\domain\policies\PolicyDefinitions • Both work with Group Policy Editor on Windows Vista and later

  6. Benefits • Advantages of using ADMX Central Store: • Once an admx file is added to the central store, it is available to all group policy administrators • Reduces the amount of replication across the domain controllers • .admx and .adml files are about 1/10th the size of .adm files • Central store is only copied once

  7. Limitations • Only Windows Vista and later operating systems versions of group policy administrative console support admx and admlfiles • Administrators cannot use a Windows XP or prior operating system to administer group policy, including Windows Server 2003 R2 and earlier server versions • Will break custom modifications directly made to the following files • System.adm • Inetres.adm • Wmplayer.adm • Wuau.adm • .admx and .adml files for Windows 7 and 2008 R2 are not necessarily compatible with group policy editor for Vista and 2008. • .admx and .adml files must be located either centrally or locally to apply correctly

  8. Notes • http://technet.microsoft.com/en-us/library/cc709647.aspx • http://technet.microsoft.com/en-us/video/screencast-how-to-configure-the-central-admx-store.aspx

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