15.5. Raising the Functional Level
You want to raise the functional level of a Windows Server 2003 domain or forest. You should raise the functional level of a domain as soon as possible after installing a new Windows Server 2003 domain or upgrading from Windows 2000 to take advantage of the new features and enhancements. Once all the domains in a forest are at the Windows Server 2003 functional level, you can raise the forest functional level.
Do the following to raise the functional level of a domain:
Using a graphical user interface
Open the Active Directory Domains and Trusts snap-in.
In the left pane, browse to the domain you want to raise, right-click it, and select Raise Domain Functional Level.
Select the new functional level you want to set and click OK.
After a few seconds you should see a message stating whether the operation was successful.
Using a command-line interface
To retrieve the current functional level of a domain, use the following command:
> dsquery *
<DomainDN>-scope base -attr msDS-Behavior-Version
Or use the
found in the Windows 2000 Resource Kit:
> enumprop /ATTR:msDS-Behavior-Version "LDAP://
To change the functional level to Windows Server 2003, create an LDIF file called raise_domain_func_level.ldf with the following contents:
<DomainDN>changetype: modify replace: msDS-Behavior-Version msDS-Behavior-Version: 2 -
Next, run the ldifde command to import the change:
> ldifde -i -f raise_domain_func_level.ldf