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Here are my questions:
- Would we encounter any issues if we didn't upgrade the Windows NT 4.0 servers prior to upgrading the Exchange server?
- Is it recommended to upgrade the operating system (OS) on our Windows 2000 Active Directory (AD) server to Windows 2003 prior to upgrading the Exchange server?
- Since we have a single domain and a single forest, can I run the setup off the Exchange Server CD (on the Exchange server) to take care of ADPrep/ForestPrep/DomainPrep?
- Is it necessary to run Exchange Server 2003 Service Pack 1 (SP1) before going to Exchange Server 2003 Service Pack 2 (SP2)?
- No, you shouldn't run into any problems. You can run Exchange 2003 in either mixed mode or native mode. For a great explanation of the differences between mixed mode and native mode, check out the Microsoft article "Description of mixed mode and native mode in Exchange 2000 Server and in Exchange Server 2003."
- Yes, it is suggested that you upgrade the OS prior to upgrading the Exchange server.
- Take a look at the Microsoft article "How to verify that ForestPrep and DomainPrep completed successfully in Exchange 2000 Server or Exchange Server 2003" to ensure that ForestPrep and DomainPrep run successfully during an Exchange installation.
- No, it is not required that you run Exchange 2003 SP1 before SP2. Microsoft states, "Service packs are cumulative, meaning they include the updates from all previous service packs. No earlier service pack is required to install the latest service pack. In either case, whether you have already installed Service Pack 1 (SP1) or have only the basic Exchange Server 2003 server software, the process to upgrade is the same. You need only install SP2." Check out Microsoft's Exchange Server 2003 Service Pack 2: Frequently asked questions for more information on this topic.
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