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Will upgrading domain controllers have an effect on Exchange 5.5?

SearchExchange.com expert Peter terSteeg examines whether upgrading domain controllers from Windows 2000 to Windows 2003 will have any adverse effects on Exchange 5.5 implementation.

I'm currently running Exchange 5.5. I am upgrading my domain controllers to Windows 2003. When I prep the Active Directory, will it affect Exchange 5.5 in any adverse ways? I am aware that there are some issues when upgrading if you are using Exchange 2000. The domain controllers I'm upgrading will be the first domain controllers to have the Windows 2003 operating system on them. (I'm currently running Windows 2000 servers on all of the domain controllers.)
I'm assuming that you are running Exchange 5.5 on Windows member servers, because you saw improved stability and needed to move off NT4. Upgrading your domain controllers should have little or no effect on your Exchange 5.5 implementation. You need to ensure that you do nothing to change your Exchange 5.5 service account.

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Related information from SearchExchange.com:

  • Expert Advice: Minimizing disruption during an Exchange Server migration
  • 11 tips in 11 minutes: Migrating from Exchange 5.5 to Exchange Server 2003
  • Learning Guide: Exchange migration
  • Reference Center: Exchange migration advice and resources
  • Dig Deeper on Legacy Exchange Server versions

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