Use this Regain OST to PST Conversion tool and Convert Your OST file to PST file with out wasting time. This Regain OST to PST Converter performs conversion of each aspect of Exchange Outlook files, such as emails, calendar items, contacts, journal etc. with attachments. The program is proficient enough to export all the properties like To, Cc, Bcc, Date, subjects, and email headers in new file.
Try this tool free Demo Version here: Convert OST to PST