I have used scanpst from time to time to repair my Outlook.pst. I
usually run it a few times on Outlook.pst until it reports that it finds
no error. Then I start up Outlook that reads Outlook.pst and mounts it
as my Personal Folder. Sometime later, I shut down Outlook and out of
curiosity, I run scanpst again on Outlook.pst. This time scanpst again
reports that it finds problems and offers to fix it, I run it a few
times on the PST until no error is found. I start up Outlook again and
the cycle repeats. So, Outlook 2007 "corrupts" Outlook.pst every time it
is accessing the PST?



Until now, Outlook 2007 has not yet failed to open Outlook.pst for me
and I do back up Outlook.pst regularly but this worries me a little.