Upgrade Outlook PST File - Version 2.0 SysTools PST Upgrade software is the suitable utility to Upgrade Outlook PST file.software have the both features like upgrade ANSI Code to Unicode & degrade Unicode to ANSI Code conversion feasility.The major draw back with ANSI PST is the size limitation.because the ANSI PST have the size limit is only 2GB & when size is exceed then the maximum chances to lost the outlook ANSI PST file. However in Unicode PST has the size limit is 20 GB.So the ANSI PST users have the enough space to store the outlook file.The major benefit for the Unicode PST user has secured & no chances to harm his important database.It is clear that Unicode PST is preferred more then ANSI code. PST upgrade software supports to converts all the mail folders like Inbox, Outbox, Sent Items, Drafts, Deleted Items, Contacts of Unicode PST File to ANSI PST file. Software requires a valid configured profile of MS Outlook 2003 & 2007 must install on your pc. Try the demo version of PST Upgrade Software bethought any cost. After you get completely certain about the software purchase the full license at $49.