>>>No it's not possible. The forth and fifth parameters are simply ignored when used in runtime.
>>
>>I remember VFP raise an error if you use them in Run-Time (but can't remember which version of VFP was that 8 or 9).
>>BTW VFP9 SP2 HELP didn't said anything about last 2 parameters :-)
>
>I stand corrected. VFP generates 'Feature is not available' error in runtime.
>
>The VFP9SP2 help I've includes additional parameters but it's not the one that came with SP2, I downloaded it from somewhere (not VFPx). It has fixed index as well.
>

>Object.AddProperty(cPropertyName [, eNewValue [, nVisibility [, cDescription]]])
>

O!
My mistake
AddProperty() method has them in HELP but ADDPROPERTY() function has them not :-)