Although DFS Replication does not explicitly omit Outlook Personal Folders Files (.PST) from replication, .PST files that are accessed across a network can cause DFS Replication to become unstable or fail. DFS Replication can safely replicate .PST files only if they are stored for archival purposes and are not accessed across the network using a client such as Microsoft Outlook (copy the files to a local storage device before opening them). For more information about why .PST files cannot be safely accessed from across a network, see Microsoft Knowledge Base article 297019 (http://support.microsoft.
