Adprep

• Adprep

Applies To: Windows Server 2003, Windows Server 2008, Windows Server 2003 R2, Windows Server 2012, Windows Server 2003 with SP1, Windows 8

Extends the Active Directory® schema and updates permissions as necessary to prepare a forest and domain for a domain controller that runs the Windows Server® 2008 operating system.

Adprep.exe is a command-line tool that is available on the Windows Server 2008 installation disc in the \sources\adprep folder, and it is available on the Windows Server 2008 R2 installation disk in the \support\adprep folder. You must run adprep from an elevated command prompt. To open an elevated command prompt, click Start, right-click Command Prompt, and then click Run as administrator.

In Windows Server 2008 R2, Adprep is available in a 32-bit version and a 64-bit version. The 64-bit version runs by default

https://technet.microsoft.com/en-us/library/cc731728(v=ws.11).aspx