DCPromo (Domain Controller Promoter)
DCPromo (Domain Controller Promoter) is a tool in Active Directory that installs and removes Active Directory Domain Services and promotes domain controllers.
DCPromo, which builds forests and domains in Active Directory, is found in every version of Windows Server since Windows 2000. Stored on a local program, it runs from Windows Server in Windows 2000 and Windows Server 2003. Since Windows Server 2008, it runs from Server Manager.