COM(C++) programming tutorials?

Are there any good sites for learning C++/COM from the ground up? I’m looking for something like a crash course with perhaps two weeks’ worth of content.

The course can assume knowledge in standard …

Prevent Excel from quitting

I’m missing an Excel.Application.Quit or an Excel.Application.BeforeQuit event. Does anybody know a workaround to mimic these events?

I access Excel from a C# WinForms application via COM Interop. …