Is there a way to recover deleted emails from an Outlook PST file?

A customer has deleted emails from his Junk Email folder, and now we have been asked to recover them from the pst data file.

Is this possible and how to go about it?

Tried using the advice at http://www.runpcrun.com/deleted-emails-outlook-pst, downloaded the Hex Editor as advised, but it immediately stopped working.

Is there another way?

This is Outlook 2007. The .pst file is a couple of GB.


Right click on the PST file and see if there's any previous versions that you can recover.