Configure Protection Against Domain Controller Overload on Additional Domain Controllers
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
To configure an additional domain controller against overload, perform the same steps that were performed to configure protection on the Windows NT 4.0 PDC. Configure the domain controller to emulate a Windows NT 4.0–based domain controller before you upgrade the operating system and install Active Directory.
Caution
- The registry editor bypasses standard safeguards, allowing settings that can damage your system, or even require you to reinstall Windows. If you must edit the registry, back it up first and see the Windows Server 2003 Resource Kit Registry Reference.
To configure emulation on a Windows NT 4.0–based domain controller before upgrade
In the Run dialog box, type regedit, and then press ENTER.
In the registry editor, navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters
Click Edit, click New, and then click DWORD Value.
For the new entry name, type NT4Emulator, and then press ENTER.
Double-click the entry name that you typed in the previous step.
In the Edit DWORD Value dialog box, type 1 in the Value data: box, and then click OK.
Keep the registry editor open to perform the next step in the upgrade process.