Um, exactly what I thought would happen.

Let me reiterate:

This cannot be done at run time.

Which means it cannot be done in a PRG in this fashion.
The form (or class) must be up in the Form (or Class) Designer.

>here is all my code in a prg:
>zForm = CREATEOBJECT('Form')
>zForm.AddObject('cmd1','CommandButton')
>zForm.cmd1.Caption = 'Process call nbr' && Caption on the Command button

Even if it could be done at run time, this line will not work, because of the "=" .

>zForm.cmd1.writemethod=("click","thisform.release()")

Here's a design time PRG that will work:

Modify Form myform Nowait
ASelObj(lax,1)
ZForm = lax[1]
ZForm.AddObject("cmd1","commandbutton")
ZForm.cmd1.Caption = "Release thisform"
<b>ZForm.cmd1.WriteMethod("Click","Release thisform")</b>