End users start Horizon Client to log in to Horizon Connection Server. This server, which integrates with Windows Active Directory, provides access to remote desktops hosted on a VMware vSphere server, a physical PC, or a Microsoft RDS host. Horizon Client also provides access to remote applications on a Microsoft RDS host.
Horizon 7 supports Active Directory Domain Services (AD DS) domain functional levels. For more information about supported AD DS domain functional levels, see the VMware Knowledge Base (KB) article http://kb.vmware.com/kb/2150351.
1 shows the relationship between the major components of a Horizon 7 deployment.