can one automate office applications from c++ only through a dispinterface?

[Roel Vanhout]

Hi,

When automating Office applications (Word in my case), do I always have
to use the IDispatch interface or can I go directly through the vtable?
I'd like to get maximum performance, will the dispinterface introduce so
much overhead that it's noticeable (compared to the 'direct' way, if
there is one)? Thanks.

cheers,

roel