Unistal OST to PST Converter Software successfully convert OST file to PST file at the time when Exchange server goes down. Unistal OST to PST Converter has nothing to do with the corrupt OST files, Software just convert OST files (Healthy OST). Unistal OST to PST Converter is a Professional OST Recovery Software that supports to convert ost files with all of its items like emails, journals, calendar, notes, tasks, contacts, attachments. Unistal OST to PST Converter Software is simple and easy to use email conversion tool to convert ost to pst. Software supports to create similar tree structure as in MS Exchange. Unistal OST to PST Converter Software supports to export PST file in MS Outlook automatically. Get back emails from MS Exchange OST file using Exchange OST Recovery Software. Unistal OST to PST Converter Software supports to run on Windows XP/200/2003/Vista.