SysTools group assist you in the process of sync PST with the highly & reliable PST Merge tool when you want to merge multiple MS Outlook PST files into single PST. Through PST combiner tool you can efficiently merge unlimited PST files like Outlook mail, Outlook PST file etc to single PST file. This software runs easily with Windows OS versions 98/2000/XP/2003/Vista/7 and Outlook 2010 bit 64.