How to Merge Outlook PST Files - Version 2.4 SysTools PST Merge V2.4 is a compact application for synchronize multiple MS Outlook PST files into 1 single PST. It works on Win 7, Vista, XP, 2000, 20003 & 98, and Windows Version 97, 98, 2000, 2003, 2007 & 2010. How to merge Outlook PST file software maintains the simplicity of the standard Outlook PST management. It is the heart of Quick Outlook combiner user to combine huge PST files into single PST. How to merge Outlook PST files software deeply explain the working process of multiple PST files into single PST without any technical skills. If you follow some steps then you can get 100% successful result....* install SysTools PST Merge software on your system* Select all the PST files which is requiring to merge into one PST* Select appropriate location on your system to save single PST file in place of multiple PST. You can follow all the steps and merge PST files by using Demo version but this demo version allow merging only 5 PST files at a single tile. SysTools PST Merge software successfully merges MS Outlook PST files such