Kernel for OST to PST software is loaded with advanced recovery and migration features to help you achieve flawless conversion of OST files. This convert ost2pst software offers wide-compatibility support with versions of Outlook Express (6.0, 5.5, 5.0 & 4.0), MS Outlook including (2016, 2013, 2010, 2007, 2003, 2002, 2000, 98 & 97), Exchange Server (2016, 2013, 2010, 2007, 2003, 2000, 5.5 & 5.0).