ActiveX Dll Component . Help

Hello, I'm trying to develop an activex dll component but I have some problems.
In myComponent.dll I define the class Myclass. It has several properties and methods.
I have some forms within the component and I want to trigger a method of MyClass in the same component.
How can I do that If I do not instantiate a friend object like

friend myfriendclass as myclass

If I instantiate a class like myfriendclass, when I change a property in the client application, I can't change the same myfriendclass property

What is the best way I can develop a component with this functionallity??
Thanks a lot.
Wally from Argentina...... sorry for my poor english !!! :p