OST to PST Converter Free - Version 3.5 Best OST to EML Converter free tool developed & intelligently designed by SysTools is an apt answer for how to convert OST to PST files? Try and use the OST converter software. You do not need to have any extra technical skills to accomplish the OST to PST conversion processes. OST to PST Converter Free software fast scans the OST file and recapture all mailbox folders (Inbox, Outbox, Sent Items, Drafts, etc.) from it. The fetched data then can be previewed with regards of their quality before you proceed ahead to save them. With the free evaluation version of OST to PST Conversion Freeware tool view of the OST data can be seen and to save the data into inventive file format (PST, MSG, DBX, or EML). The software supports all versions of Outlook Express including 6.0, 5.5, 5.0 and 4.0. It supports all Windows OS version like 2000, 2003, XP, ME, NT, Vista and Windows 7. Install and uninstall capability available so user wants to install this OST to OST converter free software after recover of OST data into PST. Demo version free for user to satisfy with this tool seen only preview of