>Hi Jim:
>Actually, what I was referring to is are there really any classes that CAN NOT be subclassed. For example, I have subclassed the "separator" that is used on toolbars only to find out that the subclass doesn't work. Hence, this class should not be subclassed. Isn't same true of the OLE classes? Any others that you know of?

John,

In what way does the separator subclass not work? To the best of my knowledge there is no VFP base class that cannot be subclassed.