unable to use stpapi.zoom.option

Hi,

I unable to use AFS "stpapi.zoom.option" command .Everytime i try this command it always end up with "Error: Unresolved reference to function 'stpapi.zoom.option'." but the other command are working fine such as stpapi.put.field , stpapi.find etc.Can you guys help with this issues ?

P.S. I aleady declared "#pragma used dll ottstpapihand "

P.S.2 I am using baan 10.5

Regards