You need to decide how quickly you plan to migrate to Microsoft Exchange Server. If you can do it in a single phase, then you can skip reading sections in this chapter about multiphase migrations. You should look at the table in the previous section to see if any of the situations match your current installation, and if so read the appropriate sections. In addition, you should read the following sections: "Mail Message Files," "Personal Address Books and Lists," and "Schedule+ Version 1.0 Messages and Calendars." Then skip to the "Migration Tools" section to learn more about the Migration Wizard.
If you can't migrate in a single phase, you should read all of this chapter.