To migrate users from your Digital ALL-IN-1 version 2.3 or later, you need to install the source extractor. The source extractor copies data to migration files. Data that is copied to migration files includes mail messages, mail attachments, shared folders, events, personal distribution lists, and pending deferred mail. The source extractor supports VAX and Alpha platforms.
You import these files by using the Migration Wizard, a tool included in Microsoft Exchange Server.