PST Conversion Downloader - Version 2.1 Advance PST conversion tool to convert Outlook personal folder from ANSI to Unicode as well as Unicode to ANSI. Outlook PST conversion utility helps you to open old PST files in Outlook 2003/2007/2010. ANSI format has the overall size limit is 2GB, if you try to store more than 2GB data in ANSI PST file it will become corrupt. You need PST Conversion software to convert ANSI PST to Unicode PST files without hampering of any data loss. PST file conversion software creates a new PST file that is replica, folder by folder, of an existing one. Software does not make any changes to the original PST file. PST Upgrade software makes importable ANSI PST to Unicode PST file by converting all existing email folder like: Inbox, Outbox, Sent Items, and Deleted Items etc. PST conversion software powerfully performs transfer of ANSI PST to Unicode PST and convert oversized 2GB ANSI PST to Unicode PST file. PST Upgrade tool converts ANSI PST file showing "Properties for this information service must be defined prior to use" to Unicode PST file conveniently. PST Conversion software requires a