To achieve synchronization with an AD LDS/ADAM instance, you need the following items installed on one or more computers running Windows Server 2003, Windows Server 2008, or Windows Server 2012:
An Identity Manager server or Remote Loader where the Active Directory driver is configured.
Internet Information Services (IIS) (must be installed before Certificate Services)
Certificate Services
A certification authority (can be your own standalone CA configured when you install Certificate Services)
An AD LDS/ADAM instance (this example in this section uses a standalone instance)