I was attempting to open the file that was attached for the scanpst and learned a new methot of finding originally installed version. If you right click the .PST file, then click "open with" you will get a dialog box. Click the down pointing arrow to the right of "other programs" and then click on browse. Now double click microsoft office, double click office 12, then scroll down the list to scanpst and double click it. Scanost is right above it and has the same icon....a ripped envelope.