Microsoft Outlook uses PST files to store the emails, contacts and other data to display them in the Outlook profiles of the users. PST file is the storage center of MS Outlook as it contains all the files, folders and related data that are dispatched to the users whenever they require them. That’s why; sudden failure or minutest fault in the PST files may result in disturbing the whole email messaging system. Also, as the number of emails grows in Outlook the size of PST file considerably increases which may touch the peak level causing size limitation errors in Outlook.

In Outlook 2007 or earlier versions, it is recommended to use up to 2GB of memory which means a PST file can grow up to 2GB. Exceeding that size may eventually result in size limitation error and PST file may become inaccessible. As soon as the PST file becomes lost, the data and emails residing in it get completely inaccessible. Users might face terrific problems and unfamiliar error messages while running corrupt PST file. The performance of Outlook is also affected greatly with the increase in the size of PST file. Outlook 2007 may momentarily stop responding during typical operations. It happens when you read email messages or delete email messages. The symptoms are commonly noticeable during mail delivery or synchronization of emails. With the increase in store size these symptoms become more prominent.

Consider a scenario, you are working with MS Outlook and communicating with your client via the email messaging of Outlook. Outlook works flawlessly and PST file prove to be great in operation. As the customers you are attached with move messages to PST file, the PST file becomes unavailable. You try to remove PST file and then restart Outlook but no result is achieved. PST file works fine until your customer moves messages to it. You start operating from the very scratch but the problem does not leave you back.

The finest strategy that could be applied to resolve this problem is to split the large PST file into smaller chunks. Splitting PST file benefits in resolving size limitation error as well as reviving the performance of Outlook. Since Outlook 2007 does not provide any built- in function to split PST file, therefore you have to use some tools for doing so. You may also implement the following steps to split PST file. Use the Archive feature to move items to a new .pst file. To do this, follow these steps:

1. In Outlook 2007, select your .pst file in the navigation pane.

2. On the File menu, click Archive.

3. In the Archive dialog box, click to select the Archive this folder and all subfolders check box, and then click a folder from the list.

4. In the Archive items older than drop-down box, click a date.

5. Click Browse, specify a path and a file name for the new .pst file, and then click OK.

The new .pst file is displayed in the Mail Folders list as Archive Folders.

For successful splitting, you can efficiently use Kernel for PST Split tool which is developed to offer reliable and error free PST splitting. This tool effectively splits large PST file into multiple small size PST files without losing single bit of data.