The Revit Plug-in for Vault Professional (server) allows Vault to deeply index Revit family files, including parameters and objects, so that you can search Revit family files with the Revit Vault Add-in.
Revit Interoperability doesn't install with Vault Professional server installation. If you need it, after installing Vault server, exit and install it from [media]\x64\RCE\RevitCoreEngine_20xx.exe. Once you install Revit Interoperability, the Revit Indexing feature must be enabled in the Autodesk Data Management server Console before you can use Revit Family Search.
Enable Revit Indexing with the ADMS Console
Launch the ADMS Console.
Right-click on the Vault that you want to index for Revit Family Search and select Revit Indexing Service.
You can also select Revit Indexing Service from the Actions menu.
On the Revit Indexing Service dialog, select Yes, enable the Revit Indexing Service.
Click OK to save your selection.
You can now use Revit Family Search on the Load from Vault dialog.