When viewing the properties of an AD user or group through the Active Directories Users and Computers (ADUC) application, the "Unix" tabs are missing ("Unix Account" tab and "Unix Personalities" tab).
The Windows tools for Authentication Services have not been installed, or the Display Specifiers haven't been configured.
In order for the "Unix" tabs to be visible using ADUC or ActiveRoles Server (ARS) ensure you have installed the Authentication Services which includes a MMC snapin extensions for ADUC.
To install the QAS Windows components
1. From the Autorun Setup page, click Authentication Services to launch the setup wizard.
2. At the Software License Agreement dialog, accept the terms of the End User License Agreement and click Install.
If the Control Center has been installed and the Unix tab still isn't visible you may need to configure the Display Specifiers. See KB 15940 for more information on this.