OST to Outlook Free Converter - Version 3.4 OST to Outlook Free Converter Software easily converts OST file to PST, EML and MSG file format. OST to Outlook Free Converter Software is a perfect OST to PST converter tool that uses advance algorithm to scan your orphaned or inaccessible OST data and convert it into maximum possible email messages and all other items. OST to Outlook PST Tool supported on various Windows version 98, 2000, XP, 2003, Vista and Windows 7. Demo version you can watch the preview of recoverable and converted OST file items but cannot save them as saving option is disabled in demo version. To save the converted items is multiple format you can buy our licensed version at just only $99. For more info-: http://www.freeost2pst.com/