Outlook Merge - Version 3.1 With the high level of advanced technology installed in the PST merge tool, it is possible for the users to merge unlimited number of PST files. The need for Outlook merge PST files together arises when you have several smaller PST files but do not have any effective way to manage the PST files. Software can merge Outlook PST files together without any efforts. PST Merge software batch combine multiple PST files into single PST file.Outlook Merge tool has ability to merge entire Outlook PST files together with the items like journals, calendar, to-do list, contacts information, email attachments, task, and address book to one PST. Merge multiple PST files utility support windows 98, windows 2000, windows 2003, windows XP, Vista, Windows7 and Outlook supporting version 97, 98, 2000, 20003, 2007 and 2010 bit 64.We offer a free demo version of PST Merge software for calculating the efficiency to merge Outlook PST files