The NetBIOS and Fully Quality Domain Name (FQDN) can be different. The following environments assume that XenDesktop 5.x is installed on all DDCs and VDAs. This article is based on the registry based Controller Discovery – this is the recommended method for multiple forest registration. The Read Only Domain Controllers must be on a Windows Server 2008 and the domain functional levels must be Windows 2003 or higher and the forest function level must be Windows Server 2003 or higher. If Read Only Controllers are introduced, then at least one writeable domain controller running Windows Server 2008 or Windows Server 2008 R2 will be required and is in the same domain as the Read Only Domain Controller. Windows Server 2003 interim domain functional levels are not supported. This does not affect the domain functional level, which can still be Windows 2000 native or higher. The minimum requirement for XenDesktop to work successfully with Active Directory (AD) is that the domain controllers must run on a server whose operating system is Windows Server 2003 or later.

XenApp and XenDesktop CR Release Documentation.

XenApp and XenDesktop LTSR Release Documentation.

Note : For XenDesktop 7.1 and newer versions, in product documentation under XenApp and XenDesktop -> Technical Overview -> Active Directory:

This article describes how to configure XenDesktop successfully to work in a complex Active Directory Environment.

Xendesktop 7 server vdi