abraham -> RE: Is Exchange 2000 supported in 2003 native functional forest level (13.Oct.2003 9:48:00 PM)
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Hi. You can run Exchange 2000 in a Native mode Forest, if you install the Ex2000 on a Member Server, but if you install the Ex2000 on a DC You can NOT run in native mode, Because Windows Server 2003 Native Mode Only support 2003 Machines.
Look this
Windows 2000 mixed (Default) Supported domain controllers: Microsoft Windows NT 4.0, Windows 2000, Windows Server 2003 Activated features: local and global groups, global catalog support
Windows 2000 native
Supported domain controllers: Windows 2000, Windows Server 2003
Activated features: group nesting, universal groups, SidHistory, converting groups between security groups and distribution groups, you can raise domain levels by increasing the forest level settings
Windows Server 2003 interim
Supported domain controllers: Windows NT 4.0, Windows Server 2003 Supported features: There are no domain-wide features activated at this level. All domains in a forest are automatically raised to this level when the forest level increases to interim. This mode is only used when you upgrade domain controllers in Windows NT 4.0 domains to Windows Server 2003 domain controllers.
Windows Server 2003 Supported domain controllers: Windows Server 2003 Supported features: domain controller rename, logon timestamp attribute updated and replicated. User password support on the InetOrgPerson objectClass. Constrained delegation, you can redirect the Users and Computers containers. Domains that are upgraded from Windows NT 4.0 or created by the promotion of a Windows Server 2003-based computer operate at the Windows 2000 mixed functional level. Windows 2000 domains maintain their current domain functional level when Windows 2000 domain controllers are upgraded to the Windows Server 2003 operating system. You can raise the domain functional level to either Windows 2000 native or Windows Server 2003.
After the domain functional level is raised, domain controllers that are running earlier operating systems cannot be introduced into the domain. For example, if you raise the domain functional level to Windows Server 2003, domain controllers that are running Windows 2000 Server cannot be added to that domain.
Regards
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