Kernel for OST to PST software supports most versions of MS Exchange server and MS Outlook such as Exchange server 2016, 2013, 2010, 2007, 2003, 2000, 5.5 & 5 and Outlook 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98 & 97. This software is compatible with Windows 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT and 95. However, before using the software, it is necessary to be clear with- why to convert OST to PST?