.NET Eventhandler

Hello,
I created a .NET COM Add-In which exposes a new Menu with two MenuItems. The
one to create a calendaritem and the other one to display the first contact
in the default contactsfolder.
What I want to do now is to register an eventhandler that listens to the
close event of the contact. There is a ItemEvents_CloseEventHandler but I
have no event exposed by the contactitem to connect the listener. Does
anybody know how I can register this handler?

Where can I get info about these events. I try to register a method to
listen to the ItemWrite event which is exposed by the Item. But I do not
know the parameters that this method should have.

Any ideas?

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Best Regards

Patrick Jox