Word 2007 - How to disable Close button.

Question

Hi, I'm currently working on Word 2007 automation using Interoperability library. I need to disable somehow Close button (and maybe also Minimize and Maximize buttons) of Word Application. I found than in previous Word versions it was possible to use Windows API function: EnableMenuItem. In 2007 it doesn't work this way.

Maybe someone had the same problem and knows the solution? I'll be very grateful for any help.

Thanks,
Marek

Update:
I already tried to use DocumentBeforeClose event and setting Cancel to true, but it only takes care of closing is chosen from menu. Close button doesn't fire this event.