Many users want to upgrade ANSI to Unicode Outlook because the latest version of Outlook having large storage capacity and provides many extra features which is very useful for Outlook users. There are many options available in the market to upgrade PST format (upgrade Outlook PST to 2007 or other versions) but don't be sure that it gives you quality results. SysTools PST Upgrade is the versatile and 100% result oriented program which has ability to upgrade and degrade of Microsoft Outlook without any technical skills. Software provides easy user interface that encourage the people to use the software confidently. This utility allows users to convert ANSI PST (MS Outlook 2000/2002/XP) to Unicode PST (MS Outlook 2003/2007/2010) and convert Unicode PST (MS Outlook 2003/2007/2010) to ANSI PST (MS Outlook 2000/2002/XP) with all entire mail folders such as Inbox, Outbox, Sent Items, Drafts, Deleted Items, Personal folders (if any) and it will also convert all of its email metadata information (to, from, cc, bcc, sent/receive date & time, attachments etc). Users can use the demo version to evaluate its efficiency and abilities which is absolutely free of cost. If you get sufficient results and want to convert unlimited PST then purchase licensed version of this program just at $49 (personal license) and $129 (business license).