C++Builder Pro 4 and EasyMail Objects

I am considering to buy QuickSoft EasyMail Objects 5 to handle all my
email messaging. They come in a *.dll COM Automation Server format.

To use them in my application I tried to use:

Variant emPop3;
emPop3 = Variant::CreateObject("EasyMail.POP3.5");

This works fine and I can access its properties using
emPop3.Exec(PropertySet("MailPort") <<110);
...
and its methods using
emPop3.Exec(Function("Connect"));

My problem is: how do I access the events fired back to my application?
If there is no way how to access them, is there another way to
communicate with this COM objects?

Thank you for help.
Alex.