Convert OST to Outlook - Version 4.3 OST to PST Conversion Free software converts offline storage file into personal storage file format from MS Outlook and allow user for OST to PST Conversion Free. This Convert OST to Outlook software can do the work upon all Microsoft Exchange Servers like as 5.0, 5.5, 2003, 2007, 2010 and 2013. After converting procedure OST to PST Conversion Free software your MS Outlook refresh data "Save as PST", "Save as MSG" and "Save as EML". Software smoothly works with all windows without any barrier. If you want to download it's free of cost demo version before purchasing its full operational version then you can download freely. After satisfaction you can purchase online full version just paying $99.