When using Outlook 2007 on the Discover Server and scanning PST files, INFO messages may appear in the FileReader.log file that say MAPIR.DLL, MSPST32.DLL, OUTLMIME.DLL, RTFHTML.DLL cannot be loaded.
Resolution
These are informational messages, and are normal if scanning PST files, when Outlook 2007 is on the Discover Server.