People when store data to Microsoft Outlook then the Microsoft Outlook uses the personal Folders file named (.pst) file. By default as per single profile Outlook create a single PST file. This single file contains all the emails, calendar entries, notes, documents and other things that user had stored. Slowly buy gradually the size of the file increases as user store more and more data over outlook.
Situation becomes very risky when .PST files become damaged by any reasons. It can be due to virus attacks or error in file structure etc. The 2GB oversize issue is also a big problem for outlook 2002 and earlier versions of outlook. Cause can be numerous but if it occurs then in order to prevent from data loss you need to repair the corrupted PST file. Outlook gives a tool named Inbox Repair Tool that may be able to correct the problem without much complication. It is useful if you get the error message while trying to open the PST file.
"Unable to expand the folder. The set of folders could not be opened. Errors could have been detected in the file drive:\Documents and Settings\user\Local Settings\Application Data\Microsoft\Outlook\Outlook.pst. Quit all mail-enabled applications, and then use the Inbox Repair Tool."
On successful repair PST, you will get a repair complete message but if it does not occurred then you need to use the backup then for the repair process.
Of course the Inbox Repair Tool is not so capable software to repair from all kinds of PST corruption and it can only useful if the file structure is not intact. In case the corruption in the actual data part of the file, it fails to recover them which is a big limitation of inbox repair tool.
To solve the problem of corruption in every segment of data file available in PST, there is professional outlook PST Repair software is available. It is an award winning Repair PST tool that can recover each and every single file that is contained in the corrupted PST.
Moreover it is capable to recover the lost and deleted PST files too that had the data present which is a way ahead for Inbox Repair Tool to do. It means if the PST files have been deleted or lost then also the files can be recovered and repaired with this powerful software named outlook PST repair.
It's really difficult to get back Outlook data after a system crash. But I easily get back the entire lost data even after my system crash with the help of Outlook PST Repair software.
Thank you again for the great help! Allen 'Oahu'