To support replication, Windows NT requires an export server and an import server. An export server can replicate directory trees that contain as many as 32 subdirectories. At regular intervals, the import server establishes a session by logging onto the export server. If the export server contains files or directories that have been modified since the last update, these files are replicated to the import server. If any files or directories have been deleted from the import server or if new files have been created on the export server, the export server replicates the files and directories not present and resynchronizes the import directory.
Replication can occur between specific computers or between domains.
If you activate replication on the import server without specifying the name of a computer or of a domain, the import server automatically replicates files from the export server in its domain. An export server can also export files to a specified domain. Any computer configured for import replication in the domain receives any changes to files and directories. You can also configure replication to occur between machines if a trust relationship exists between their domains. See article Q104204 in the Microsoft Knowledge Base for more information.