This old pseudo application, which is nothing more than a collection of obey files disguised as odd directory folders, provides links to any directory from any other. A directory short-cut. It was useful, for example, for Voyager users sometimes to find their outgoing email, which is buried somewhere inside !Voyager. As long as !Voyager had been seen by the filer, OpenDir can find the email for you. Nothing complicated, but a few useful things to attach to your pinboard.