[ovirt-users] ovirt 4.0.3 and Active directory

Hi, I have installed ovirt 4.0.3 on my servers. Now I would add authentication with active directory, for user portal. In the previous version I have used the following command: engine-manage-domains add --domain=mydomain --provider=ad --user=myuser --add-permissions but now this command there isn't. I found this command ovirt-engine-extension-aaa-ldap-setup and now I ask you if this command is the substitute, this command is not present on my installation, I must add it I suppose. Is there an howto page on the documentation to help me? How to I proceede? Thank you for your help Regard Nicola