Microsoft Exchange OST Recovery - Version 3.5 Microsoft Exchange OST Recovery -OST Recovery Software the finest approach for OST to Outlook PST conversion. Recover Microsoft OST to PST to get rid of the problems observed in OST database. Problems like power failure, MS Exchange Server crash, disk device failure, Trojan infections, virus attack etc. have an effect on messages, calendar, contacts, notes, tasks, and journals etc. Microsoft OST Recovery Software also exports OST data in MSG and EML format. It also has a distinctive characteristic of preserving original RTF and HTML text formats. Demo Copy offers to get the preview of some restricted amount of OST data. You can order full editions of our software Microsoft Exchange OST Recovery software just at $99.