Article ID: 2743367 - View products that this article applies to.
When you run the Adprep.exe that is included with Windows Server 2012 on a 64-bit version of Windows Server 2003, you receive an error that resembles the following:
d:\support\adprep\adprep.exe is not a valid Win32 application.
You cannot run the Adprep.exe that is included with Windows Server 2012 on Windows Server 2003.
The Adprep.exe that is included with Windows Server 2012 supports remote updates of the forest and domain. There is no longer any requirement to run Adprep.exe on the existing Schema Master or Infrastructure Master domain controllers.
To update your domain, follow these steps:
Windows Server 2012 Adprep.exe also removes the requirement to join a domain. You can use the /Forest, /Domain, /Userdomain, and /Password arguments to remotely update forests and domains even from a workgroup as long as you have the correct Domain Name System (DNS) name resolution. Also, just installing and configuring the first Windows Server 2012 domain controller into a forest runs the preparation process automatically, and in this scenario, you do not have to use adprep.exe.
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