Known Issues for Installing and Removing AD DS

Adprep.exe issues


The location for Adprep.exe is different in Windows Server 2008 and Windows Server 2008 R2. You must run Adprep.exe before you can add a domain controller that runs Windows Server 2008 or Windows Server 2008 R2 to an existing Windows 2000 Server or Windows Server 2003 Active Directory environment. In Windows Server 2008, Adprep.exe is located in the /Sources/adprep folder of the operating system installation disk. In Windows Server 2008 R2, Adprep.exe is located in the /Support/adprep folder. Windows Server 2008 R2 includes a 32-bit and 64-bit version of Adprep.exe. The 64-bit version runs by default. If you want to run one of the Adprep.exe commands on a 32-bit computer, you must use the 32-bit version of Adprep.exe. More Details Refer to Microsoft TechNet.