Freeware OST to PST converter tool to convert OST to PST File, EML and MSG for further use. The OST converter software added best features for easy conversion of your data and also restore your damage OST Emails information. OST as PST converter freeware tool supports almost MS Windows version as 2000, 2007, 20003, 2008, XP, Vista, Win7, Win8 and also support as MS Outlook 98, 2000, 2003, 2007, 2010 and 2013 versions.