Convert 2003 PST to 2002 PST – Degrade Outlook PST!
PST Upgrade from SysTools is a powerful PST conversion tool to upgrade or downgrade Outlook PST files. Using SysTools PST Upgrade tool, you can convert 2003 PST to 2002 PST and Outlook 2002 PST to Outlook 2003/2007/2010 PST.
Microsoft Outlook ANSI PST (97, 2000, and 2002) has overall size limit 2GB for personal folder. If the size of Outlook ANSI PST exceeds from 2GB, then PST file gets corrupted. On the other hand, Microsoft Unicode PST (2003, 2007, and 2010) has overall size limit 20GB for personal folder. You can’t use Outlook 2003/2007/2010 PST with earlier version of Outlook (97/2000/2002). You must degrade Outlook PST for opening in earlier version of Outlook. SysTools provides you PST Upgrade tool to upgrade or downgrade Outlook PST. Using SysTools PST Upgrade tool, you can easily open old version PST into new version PST and new version PST into old version PST.
Key Features of SysTools PST Upgrade
- Easy to use product (user friendly interface)
- Compatible with all Windows versions (98, 2000, XP, Vista, & Win7)
- Allow users to convert ANSI to Unicode
- Allow users to convert Unicode to ANSI
- PST Upgrade tool maintains all information (to, from, cc, bcc, sent/receive dates and time)
- Free demo version is available
- Quick Upgrade and Degrade Outlook PST file
Free Demo version of Outlook PST Upgrade
We recommend our customer to download free trial version and explore the factuality of SysTools PST Upgrade software; demo version of this tool converts only first three folders of Microsoft Outlook.
Purchase Full Version of Upgrade PST
Full version of PST upgrade converts complete information (to, from, cc, bcc, sent/receive dates and time) of Microsoft Outlook. You can convert Unlimited ANSI PST files into Unicode as well as Unicode PST file into ANSI.




