>Why does it not show up IN the top-level-form?

After trying what VFP help file says about using form set, I was not able to make the toolbar to act as a child of the top level form. It was stuck to the main VFP form.

But I found it could be done without a form set by adding the following to the forms Activate event:

IF TYPE("this.oToolbar") # "O" OR ISNULL(this.oToolbar)
Set Classlib To MyClass Additive
this.oToolbar = CREATEOBJECT("MyTbr")
this.oToolbar.show
ENDIF

Why does it does not work the same way when the code is added to the Init event?