Windows 2003 Adprep, DomainPrep and ForestPrep - needing details

Posted on 2009-02-14
Last Modified: 2013-12-05
We have a Windows 2000 domain.  I need to add a Windows 2003 domain controller without upgrading the 2000 domain controllers and entire domain just yet.
I am looking for a detailed explanation of what Windows 2003's ForestPrep and DomainPrep will do to the Windows 2000 domain.  I need it for our Application Development group and programmers.  They are particularly interested in how the Schema will be modified.  Are there any other changes in this process that anybody can think of?

Thank you!
Question by:DilbertW01
    LVL 15

    Assisted Solution

    The schema will be modified to allow the 2003 server to be a domain controller. You will not gain advantage of these features until you upgrade the level to 2003 domain functionality, but the domain has to be prepared for this. Check this article for a good list of features:

    You will NOT be able to add a 2003 DC without doing the /forestprep and /domainprep. It will give you a schema mismatch error. By default 2000 is schema version 13 (I believe), while 2003 is 30. 2003 R2 is 31. It will only extend Active Directory to give it more features, it won't remove anything that you have.
    LVL 57

    Accepted Solution

    Looks like they want exact details, give them this link
    Operations that are performed by the Adprep.exe utility when you add a Windows Server 2003 domain controller to a Windows 2000 domain or forest
    and for future reference or anone that may come by this thread via google, here are the changes for Windows 2008
    Windows Server 2008: Appendix of Changes to Adprep.exe to Support AD DS

    Author Closing Comment

    The article was definitely the kind of detail that we are needing.  Thank you!

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    What Security Threats Are You Missing?

    Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

    Some time ago I faced the need to use a uniform folder structure that spanned across numerous sites of an enterprise to be used as a common repository for the Software packages of the Configuration Manager 2007 infrastructure. Because the procedu…
    Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
    This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
    This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles to another domain controller. Log onto the new domain controller with a user account t…

    779 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    12 Experts available now in Live!

    Get 1:1 Help Now