>>I'm sorry, I forgot to specify that!
>>
>>In my main program I specified the folowing:
>>SET UDFPARMS TO REFERENCE
>>and I didn't issue another "SET UDFPARMS" command anywhere else.
>>
>>Do I still need to specify the "@"?
>
>No, you shouldn't. Trey was correct (serves me right for not reading the post more closely). Use the EXTERNAL ARRAY < array name > to get rid of the compiler error. I thought you were having trouble with the function behaving correctly.

Great. Thank you very much.

Stephane.