Outlook Merge Tool - Version 2.9 Lighting fast solution for Outlook users to combine multiple MS Outlook PST files into single PST is SysTools PST Merge Software. Outlook merges utility to combine email and other items to single PST file. SysTools PST Merge software now appear with Outlook Merge tool merge entire Outlook items like journals, calendar, to-do list, contacts information, email attachments, task, and address book to one single PST without any original data replications. Merge multiple PST files utility support windows98, windows 2000, windows 2003, windows XP, Vista, Windows7 and Outlook supporting version 97, 98, 2000, 20003, 2007 and 2010 bit 64. We provide free demo version of PST Merge software online for calculating working efficiency with latest version 2.4. But demo version will merge only five items of selected Outlook folders at a single time. If you satisfied with demo version and find all features according to your requirement then purchase Full Version to combine UNLIMITED PST files at a single moment.