2GB PST Upgrade - Version 2.0 2GB PST Upgrade - Using Outlook PST Upgrade tool a user can Outlook ANSI 2GB PST to Outlook Unicode 20GB PST file formats. You can convert ANSI PST files created using Outlook 2000/2003/XP to Unicode PST files of Outlook 2003/2007/2010 similarly it can convert Unicode PST to ANSI PST file formats. MS Outlook 2000, 2002, XP have overall size limit of 2GB for personal folder, PST files created in these version have ANSI file format and if the size of PST file exceeds then 2GB then PST file gets corrupted. To avoid and overcome this type of situation this PST conversion tool can be very helpful, to avoid corruption ANSI PST files of earlier version of Outlook can be upgraded into Unicode PST file or upgrade outlook 2002 to 2007 and increase PST size Outlook 2002 from 2GB to 20GB. You can download free demo version for getting practical knowledge and checking the efficiency of software to upgrade 2GB ANSI PST to 20GB Unicode PST. But you can convert only first 3 folders of Outlook PST files with demo version. Full license version of SysTools PST Upgrade