For general Windows 2003 administration knowledge, a good reference is the Microsoft Windows Server 2003 Administrator s Companion, Second Edition , by Russel, Crawford, and Gerend (Microsoft Press, 2003).
To review how the various Windows 2003 group types influence Exchange performance and utility, see the Microsoft Exchange Server 2003 Administrator s Companion by Glenn and English (Microsoft Press, 2004).
The Exchange team has produced a detailed white paper ( Working with Microsoft Exchange 2000 Server Store Permissions ) covering how permissions control access to objects in the Exchange store. Even though it was written for Exchange 2000, it s still quite useful for Exchange 2003. Get it from http://www.microsoft.com/downloads/release.asp?ReleaseID=43501 .
The Exchange Server 2003 permissions granted during installation are described in Chapter 7; the description and tables are reprinted from the Microsoft Exchange 2000 Internals: Permissions Guide white paper (available from http://www.microsoft.com/technet/prodtechnol/exchange/exchange2000/deploy/depovg/exchperm.asp ).