We all know that with every Exchange Service Pack [SP] we have to run the
usual setup /PrepareSchema (or setup /ps) in order to prepare the Active
Directory Domain Services Schema for the newer version of Exchange. This is
because every new SP introduces new attributes and modifies some existing
classes and attributes in the Schema. But what exactly is added and/or changed?! To help answering this question, Microsoft made available the Exchange Server Active Directory Schema
Changes Reference document.
The latest version of the document, from November 2011, includes
changes made by:
- Exchange Server 2010 SP2, SP1 and RTM
- Exchange Server 2007 SP3, SP2, SP1 and RTM
- Exchange Server 2003
Not sure why the file is not available a “simple” download, but you
have to download a nADSchemaRef.msi file, install it and then get the document
from (by default) C:\Program Files\Microsoft\ExDevCenterDownloads\Exchange Server
Active Directory Schema Changes Reference. Very strange...
Other alternative you have, is by looking at all the .ldf files that
are used in the process, which are located in the \amd64\Setup\Data\ directory
on the setup DVD.
I recon you will prefer the first method :)
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