OST to PST Freeware - Version 3.5 OST to PST Conversion Freeware application management tool converts OST emails, contacts, calendar, schedules, tasks, attachments, notes, journal and other significant items. Maintain the formatting of the RTF and HTML messages. OST File Conversion software recovers all OST mail items such as task, notes, journal, folders and attachments etc. OST File Conversion software supports all Microsoft Outlook versions such as 2010, 2007, 2003, 2000 or 98 and Microsoft Exchange server editions like as 2010, 2007, 2003, 2000, 5.5 or 5.0 etc. You can easily download demo version of this software if you fulfilled this software recovery process then purchase full version of our software just at $99.