http://itknowledgeexchange.techtarget.com/itanswers/install-exchange-server-55-on-windows-2003-server/ Sat, 18 May 2013 03:59:03 +0000 hourly 1 http://itknowledgeexchange.techtarget.com/itanswers/install-exchange-server-55-on-windows-2003-server/#comment-52440 wrobinson Sat, 22 Mar 2008 17:17:29 +0000 #comment-52440 You are asking for trouble. To upgrade from NT to 2003, you must first do an in-place upgrade to Windows 2000 Server, then perform another in-place upgrade to Windows Server 2003. Your best solution will be to migrate from NT/Exchange 5.5 to Windows Server 2003/Exchange 2003 or Exchange Server 2007, though if you are planning using existing hardware then you will in all likelihood not be able to implement Exchange Server 2007 because it is only supported on 64-bit hardware which is required for a production environment.

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