Microsoft OST to PST converter is highly preferable utility which is professional for Microsoft convert OST to PST & caters additional services like fix errors, & allows users to add the required files or to apply conversion/recovery process. Thus it recovers encrypted messages, notes, to do list, etc. & shows instant view of files after repair. By Best Microsoft OST to PST Converter Freeware app user can reuse its OST database in MSG/EML also.