How can I raise my domain to use the Windows .NET Server (Win.NET Server) 2003 domain mode?

A. Raising a domain is a one-way process that you can't reverse. Therefore, before you proceed, review the FAQ titled "What are the Windows .NET Server (Win.NET Server) 2003 domain and forest modes?" to ensure that you can raise your domain. To raise your domain, perform the following steps:

  1. Log on as a domain administrator to a domain controller (DC) or a machine running the Win.NET Server administration tools.
  2. Start the Microsoft Management Console (MMC) Active Directory Domains and Trusts snap-in or the Active Directory Users and Computers snap-in (go to Start, Programs, and select Administrative Tools).
  3. Right-click the domain, then select the Raise Domain Functional Level option from the context menu--Windows will display the current domain mode.
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  4. Select the new domain mode, then click Raise.
  5. Click OK to close the confirmation dialog box.

Windows will inform you that it has completed the change and will replicate the change to the remaining DCs.

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