When using Active Directory Users & Computers and searching for either "User Personalities" or "Group Personalities". You receive the error "The properties for this item are not available" when double clicking on the resulting users/groups properties.
The display specifiers need installing. This needs to be done once in the forest.
1. As an Enterprise Admin login to a machine with the VAS admin tools installed
2. From the Start menu go to Programs | Quest Software | Vintela Authentication Services | Advanced Tools | Display Specifier Registration.
3. Click Next | Select Active Directory Users and Computers (LDAP) | Click Next | Click Finish
The attached UnixSearch.jpg shows the error.