Exchange OST to PST - Version 4.05.01 OST to PST conversion software is designed to convertost file to pst file and also recover permanentlydeleted emails from the Deleted Items folder. Softwaresuccessfully works as an ost to pst conversion softwareand lets you convert .ost file of MS Exchange Server to.PST file of MS Outlook. It recursively scans the .ostfile and then extracts existing emails from the offlinestorage (.ost) file. Emails, sent items, drafts,journals, calendar, notes, schedules, to-do list..allare converted by the ost to pst software. It alsofunctions as ost recovery software and recoverspermanently deleted emails form the "Deleted Items"folder. Save the converted .ost file in .PST, .EML and.MSG file format and access it with MS Outlook orOutlook Express. Free to evaluate trial version of ostto pst conversion software lets you preview convertedemails and its recovered content and related items, tosave you need to purchase full version of exchange ostto pst software. Supported MS Exchange Server versionfor ost to pst conversion include 5.0, 5.5, 2000, 2003and 2007 MS Outlook 97, 98, 2000, 2002, 2003 and 2007.