AFAIK, Intellisense will display all control's functions and methods (It's hasn't change from VB6). Maybe you've declare a control with different name (example you created butProces, but you tried to call butProcess ??. Sometimes, it get me too).
No. It's always the same. Even if you add your button programmatically, at least you have to declare it first (dim blabla as new window.forms.button). So, IDE will sure know that you've declare an object.