The FLUSH is command not function and it has additional clauses in VFP9.

>
>I have a question regarding how VFP works with internal Commands and Functions - the FLUSH command in particular.
>
>In VFP8SP1, issuing FLUSH() - note the parenthesis - does not generate an error. While in VFP9SP1, it creates a "File is not open" error.
>
>Is there an automatic internal Command/Function resolution happening here?