Hi,

try this ...

LOCAL lnParam1, lnParam2, lnParam3
lnParam1 = '' && set to whatever datatype you expect beeing returned 
lnParam2 = ''
lnParam3 = 0 && long

&& assuming loObj holds a ref to your COM object
LOCAL loInterface 
loInterface = GETINTERFACE(loObj, 'ITheInterfaceNameYouHavetoLookupIntheObjectBrowser')
loInterface.TheFunctionYouWannaCall(@lnParam1, @lnParam2, @lnParam3)

If this doesn't work there's no way around the VB wrapper ....

Christian