>Hi.
>I have a form, with a file set up in the data environment.
>On a button of the form, I have code to Zap the file.
>
>How do I:
>(1) Set Exclu on for the file (so that I can zap it)
> (Overall in my APP, Exclu is set off so from the DE, the file will not be open exclusively)

To see if a file can be opened exclusive (and to temporarily get a lock on it), you can do:

nFH = FOPEN( 'yourFile.DBF',11) will be -1 if the file is in use anywhere else. Note, you'll have to FLCOSE(nFH) the file before you can USE it.