Upgrading old pst to Outlook 2003 Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Messaging Software › Outlook › Upgrading old pst to Outlook 2003 This topic has 0 replies, 1 voice, and was last updated 14 years, 5 months ago by pakt. Viewing 1 post (of 1 total) Author Posts paktMember Jun 11, 2006 at 8:27 pm #113516 Dear folks, Any ideas on how to upgrade old pst file to new 2003 format?? My boss is using 2000 pst format with Outlook 2003. I need to upgrade his pst really soon. So I must first understanding the upgrade procedures before I move, Thanks for help. Thanks Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.