Ensure Remote Access Service Compatibility

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Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To ensure remote access compatibility in a mixed Windows NT 4.0 and Windows Server 2003 environment, upgrade the operating system on all remote access servers in the domain to Windows Server 2003 before you begin the in-place domain upgrade process. If RAS is running on a domain controller, upgrade that domain controller early in the in-place domain upgrade process to minimize security risks.