Microsoft Exchange Server 2003, Deployment and Migration SP1 and SP2

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Exchange 2003 Deployment Fundamentals

1.1 Introduction

Exchange 2003 (and Exchange 2000 before it) is radically different from Exchange 5.5—architecturally, it’s a world away from the self-contained messaging system that Exchange 5.5 was—but compared with Exchange 2000, Exchange 2003 has much in common with Exchange 5.5 and differs really only by refining functionality and making improvements here and there. Those components that were built into Exchange 5.5 had been separated out from Exchange itself and, in most cases, integrated into the underlying operating system. For Exchange 2000, that operating system was Windows 2000. For Exchange 2003, you have the choice of two operating systems on which to run the product: Exchange 2003 can run ...