Free OST to PST Converter Tool: Convert Exchange OST to PST is certified by Network admin expert to use worldwide and used to convert Outlook e-mail .OST to PST is a Freeware application because of its features like emails, personal journals, to list and calendars etc. and maintains the internal structure of all files and folders of OST data. This software restores all email properties such as to, subject, date, time, CC and BCC. OST to PST Conversion software support all the versions of MS Outlook like 2013, 2010, 2007, 2003 & below all entire versions and runs on all the windows OS like Win10, Win8, Win7, XP, Vista, WinServer etc. User can easily purchase full version of OST to PST converter tool at a very nominal price.