Even if you access Help (F1), there’s no indication the tool exists. To get it, go to Tools , Customize , click on the Toolbar tag and cursor down to Function Key Display (see screenshot). Check the ...

If you develop on one computer that has Access 2000 and Access 97 installed, and just use Access 97, the program won't be able to run functions on a machine that has never had Access 2000 on it.