How to install or upgrade Group Policy Management Extension.
Do not see "Unix Settings" on the Group Policy Management Server
1 - Download the latest version of Authentication Services by going to
2 - Run autorun.exe at the root of the download you can do a custom install or go to windows directory and run gpX64.msi or gpX86.msi
You can use the 4.2 group policy extension with older client. Please see the guides for further information about this: