Outlook and Outlook Express needs no introduction. They are the two most widely used e-mail programs all around the world. Outlook keeps mails in .PST file format and is stored in C:Documents and SettingsuserLocal SettingsApplication DataMicrosoftOutlook. By default, Outlook folder remains hidden. Though .PST files are quite robust and in comparison to other file formats are more resistant to corruption and other problems. But crash they must sometimes. It’s a probability that technology of any sort, however robust and resistant, is born with. These Outlook .PST files are liable to get corrupted as well as a result of a virus attack, Outlook crash, software corruption and in case .PST file exceeds its size limit of 2 GB, thus enabling pst recovery. There are also some error messages generated when there’s a corruption in Outlook like:“Unable to expand the folder. The set of folders could not be opened. Errors could have been detected in the file drive:/Documents and SettingsuserLocal SettingsApplication DataMicrosoftOutlookOutlook.pst. Quit all mail-enabled applications, and then use the Inbox Repair Tool."Sometimes, you may lose or accidentally delete email messages from your Outlook. In all these and like cases, your sudden reaction would be to want to just sit and cry. Just thinking that it’s nothing less than your precious Outlook mails that you have lost would make you freeze in fear. However, as in all other data loss cases, a recovery is possible and not too far away. Recovery software especially designed fro just Outlook recovery will repair your corrupted Outlook .PST files and also recover deleted e-mails from your Outlook. Stellar Phoenix Outlook PST Repair Software is a premier recovery tool for Outlook .PST file repair and deleted mail recovery from it. Software details and free demo version can be accessed here for evaluation of its strengths.