Difference between Windows 2000 and Windows 2003 Server.

Difference between Windows 2000 and Windows 2003 Server.
Following are the extra features you will find in Win 2003.
• IIS 6.0 [Win 2000 –IIS 5.0]
• Domain & forest renaming,
• LDAP version is different 
• Stub zone option in DNS introduced in Win 2003
• ASR option replaced ERD
• IE 6.0 [Win 2000 – IE 5.0]
• 64 Bit O/S Support
• Schema Version changed.
• Volume shadow copy introduced,
• Cross forest trust relationship introduced,
• Win 2003 Support 8 node clustering [Win 2000 supports 4 Node]
• Code name is Win 2003 is Win NT 5.1 [Win 2000 NT 5.0]
• Win 2003 has built support for IPV6 
• Windows 2003 Supports Microsoft .NET 2.0
• Distributed File system was introduced in Windows 2003 Server
• Support for GUID partition table for 64 bit architecture integration
• Win 2003 supports 4 types of domain functionality 
Domain functional level        Domain controllers supported
Windows 2000 mixed (default) Windows NT 4.0
                                         Windows 2000
                                         Windows Server 2003 family
Windows 2000 native             Windows 2000
                                         Windows Server 2003 family
Windows Server 2003 interim   Windows NT 4.0
                                         Windows Server 2003 family
Windows Server 2003            Windows Server 2003 family