Go for PST files merge tool if you want to merge new as well as old PST files together? Use advance tool that is Outlook PST Merge software to combine PST files together. Software successfully works with MS Outlook version 97, 98, 2000, 2003, and 2010. PST Merge Software smoothly runs with Windows Operating System Win 7, Vista, XP, 2003, 2000 and 98. Outlook PST Merge software added some special features to merge PST files like: * Creates New PST File - PST Merge creates a new PST that is a replica, folder by folder, of an existing one. * It makes no changes to the original PST file; software does not amend anything on the existing PST file * Preserves all email metadata or information - PST file Merge tool keeps all meta data information associated with emails intact like sent and received date, attachments, to, cc, bcc, address. On the basis of merge archive files software you not need to any technical skills to merge multiple PST files and you will get most excellent result. It is possible to easily merge Outlook folders (contacts, calendars, journals etc) into single PST. PST Merge software is extremely user friendly; any kind of technical knowledge is not required from start to end to merge too many PST files to single PST. Download demo version of merge Outlook archive software and know with ease to about "how to merge multiple PST files" into single Outlook PST, without any risk of data loss. Once you use the Trial version, it will let you merge PST files together. If you are happy with the DEMO version then purchase Personal License only at $69 and Business License only at $199.