Hi!

Custom class is good to use it to put on the form in design time or add it to form or container in run-time by AddObject/NewObject method.

For run-time, when using just CreateObject() function to create object from your class, it is good to use Relation class.

The best parent, as you see, is depended on certain things:
do you want to use new data session?
do you plan to allow putting objects of that class on the form in design time or in run-time?

For COM server usually Relation object using is enough.

>I´m quite newbie, so I think that non visual classes parent class should be custom object.
>am I wrong?
>Which is best parent object for a class with only some methods and properties?
>This class is going to be a COM Server, does it matter?
>
>Thanks for helping me to learn VFP
>Ibai