When using large PST files and in need of some reliable and stable way to split the PSTs into smaller, working PSTs, the Regain Outlook PST Splitter tool is among the best available tools. This program is able to split PST files by size, date, or in other aspects such as "Contain Words," "To," "From," "Cc," "Bcc," or "Subject. It ensures that all the email metadata are kept valid during the splitting. If it can be run under both the UNICODE and ANSI versions of Outlook, it will perform well under all MS Outlook versions and in the Windows environment. The user-friendly interface brings the task up to speed, letting you split large PST files with just a few clicks.