Convert Old PST to New PST - Version 2.0 SysTools provides best utility to convert old PST fileto new PST file, software is compatible to convertolder Outlook PST version in newer Outlook version andnewer PST version to older PST version. You can easilyconvert ANSI to Unicode PST and Unicode to ANSI PST.Our software is compatible with all Windows versionsuch as Win98, Win 2000, Win XP, Win Vista and Win 7.The old format known as ANSI PST (2000, XP), has alimitation of up to 65,000 items per folder and anoverall PST size of 2 GB. Because of the large filesize support, it's highly recommended that you upgradeto the Unicode PST format, however, Microsoft does notoffer a tool that upgrades the PST. SysTools SoftwareGroup, a world leader in developing software productsfor data conversion, data recovery and associatedaspects has a great product for Outlook PST fileconversion. SysTools PST Upgrade software helps you toconvert old PST to new PST. You can use this softwareto upgrade Outlook PST files and even to downgrade PSTfiles. Suppose you have created your PST file inMicrosoft Outlook 2003 & 2007 and you want to open itin Outlook 2002 or in its earlier version and gettingerror such as "Properties for this information servicemust be defined prior to use", just convert the UnicodePST to ANSI PST file using PST UPGRADE tool. SysToolsprovides you FREE demo version of PST Upgrade tool,after your satisfaction you can buy this tool only at $49.