Migrating from Exchange 5.5 to Exchange 2003

However, Exchange 2003 uses precisely the same schema extensions for both the ADC and Exchange 2003 itself. Therefore, only one instance of Schema Naming Context replication takes place in AD. In fact, in a native Windows 2003 forest environment, no AD-wide GC reload takes place when new objects are added to the GC partial-attribute set. Furthermore, the Exchange 2003 version of Forestprep writes no Exchange 5.5 organizational information to AD. Rather, the tool creates a placeholder Exchange container. The actual configuration information from Exchange 5.5 isn't written to AD until you install the first Exchange 2003 server. Thus, the installation of ADC isn't a prerequisite for Forestprep.

ADC Tools
Although Exchange 2003 ADC functionality is basically the same as Exchange 2000 ADC functionality, the Microsoft Management Console (MMC) Active Directory Connector Manager snap-in contains a significant number of enhancements that can simplify CA configuration. The MMC snap-in now contains a series of buttons that you can use to per-form checks against the Exchange 5.5 Directory Service and AD. When you click ADC Tools in the navigation pane (on the snap-in's left side), these new options appear in the snap-in's right pane, which Figure 1 shows. . . .