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Q170280: XADM: Upgrading From Exchange Standard Edition to the Enterprise

Article: Q170280
Product(s): Microsoft Exchange
Version(s): 4.0,5.0,5.5
Operating System(s): 
Keyword(s): exc4 exc5 exc55
Last Modified: 10-MAY-2002

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
- Microsoft Exchange 2000 Enterprise Server 
- Microsoft Exchange 2000 Server 
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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 compact disc 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: Once upgraded you cannot downgrade Exchange Enterprise Server edition to the standard version of Exchange Server.

For additional information about a case in which the upgrade is not possible because of the different packaging of the product, click the article number below 
to view the article in the Microsoft Knowledge Base:

  Q312426 XADM: Cannot Upgrade from BackOffice Exchange 2000 Server Standard


Additional query words:

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Keywords          : exc4 exc5 exc55 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 kbExchange2000Search kbExchange2000Serv kbExchange2000EntServ
Version           : :4.0,5.0,5.5
Issue type        : kbhowto

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