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How to upgrade from Exchange 2003 Standard Edition to Enterprise Edition

How to upgrade from Exchange 2003 Standard Edition to Exchange 2003 Enterprise Edition.

We have Exchange 2003 Standard Edition running in house. We have run up against the 16 GB database size limit. We purchased the enterprise version of 2003. When I go to upgrade the Standard Edition to Enterprise Edition, there is no upgrade path offered. How do I go about upgrading and still keep all of my setups?
Please see the Microsoft article, Upgrading from Exchange Server Standard Edition to the Enterprise Edition. This article was previously published under Q170280.

To upgrade the Standard Edition of Microsoft Exchange Server to the Enterprise Edition of Microsoft Exchange Server, run the Setup program from the Exchange Server Enterprise Edition CD and click the Reinstall button.

To install any additional components or connectors included in the Enterprise Edition of Exchange Server, run the setup program again and click Add/Remove.

Note: Any Exchange service packs or hotfixes must be reapplied after you upgrade. Once upgraded, you cannot downgrade Exchange Enterprise Server edition to the standard version of Exchange Server.

For more information about a case in which the upgrade is not possible because of the different packaging of the product, read the following Microsoft Knowledge Base article, XADM: No option to upgrade from Exchange 2000 Server Standard Edition to Exchange 2000 Enterprise Server.

Do you have comments on this Ask the Expert Q&A? Let us know.
Related information from SearchExchange.com:

  • SearchExchange.com Tip: Preparing for an Exchange 2003 upgrade
  • SearchExchange.com Reference Center: Migration advice

  • Dig Deeper on Legacy Exchange Server versions

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