>Hi,
>
>in case you have implented classA on Form1 and you later change your mind. Than whats wrong with slecting that class on form1 right click and delete classA subsequent add classB?
>Seems quicker and neater than 'hacking' the SCX.

That's fine if all you've done is drop the control on the form. But if you've added code, or changed properties, you lose all that work.

Tamar