Visual Studio: How to automatically attach debugger with a managed engine to an unmanaged application

Question

I'm following these instructions, How to: Launch the Debugger Automatically, and I am able to have debugger being launched, but with a twist: I'm working on a x64 box, trying to debug a Word MANAGED plugin, but since Winword.exe is UNMANAGED and on x64 Visual Studio doesn't support mixed debugging, I'm trapped :-)

Any tip, other than working on a x86 system, which I can't right now?

Thanks!