Microsoft produced a utility called "pst19upg.exe" which was used to upgrade old versions of "pst" (aka Personal Folders) files to the later version. One side effect of this was that it removed any passwords from the "pst" file.
Therefore if you find that you cannot access a "pst" file because the client has forgotten their password or has left the company, you can use this utility to get access to the data.
NOTE: This process does NOT work for PST files that have been created in the new UNICODE format in Outlook 2003 and higher that allows PST files to exceed 2gb.
|PDF Version of these instructions|
This procedure is unsupported by either Microsoft or Sembee Ltd. We cannot be held responsible for any loss of data that occurs by attempting this procedure. You should always work with a copy of the pst file, not the original file. This will ensure that if it does go wrong you don't loose everything. You can then try an alternative solution.
Before using the utility, make certain you have at lease three times the size of the "pst" file in temporary free the disk space.
You will need two utilities:
No support is offered for this application.
If you no other resolutions work, then the file may be corrupt. You should try one of the commercial applications to see if they can read the file. Many of them have trial versions which will allow you to view some of the content proving they work before you pay for them.
For a list of applications that may be suitable, please see this link on DMOZ Directory:
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