It is possible to precisely and effectively compress Outlook PST files with the DataVare Outlook PST Compact Expert Software. This function is among the most useful of the PST compress tool. According to the application, it is possible to compress several PST files simultaneously. Bulk compression is one of its features that speeds up the compression of PST files. The program can compress files of any size because it is compatible with both ANSI and Unicode PST file formats. This is the best way to remove and compress PST file attachments without installing any other software, like Microsoft Outlook. This perfect application merely requires users to complete the compression process. The program can be used without users installing any other software.