Seeing the date of this post, I am very surprised that this significant oversight has not already been remedied. CCleaner still does not address the Deleted Items dbx. If one conducts a search, one finds that this dbx still contains information pertaining to all e-mail that one has opted to "permanently" delete, in my case in Outlook Express - and can constitute a rather sizable file. To remedy this, one currently needs to manually delete the dbx, which Outlook Express then automatically recreates cleanly upon reopening of the program. I would very much appreciate having CCleaner address this fundamental misrepresentation of Office functionality in its cleaning operation.