> Does anyone know how to add an item to the context sensitive popup 
> menu in windows when right clicking on a file, similar to the way
> that winzip adds 
> it's 'Add to Zip' menu item.

The sample application in the following article does exactly that:

http://www.beginthread.com/Article/Ehsan/Instant%20Preprocessor/

-------------
Ehsan Akhgari

List Owner: MSVC@B...

[ Email: ehsan@b...; ehsan@r... ]
[ WWW: http://www.beginthread.com/Ehsan (updated) ]

Man is something that must be overcome: and therefore you will love your
virtues,- for you will perish by them.- -Thus Spoke Zarathustra, F. W.
Nietzsche