Adding a right click New Word Document to Vista

Hi. I wanted to have a right-clickable "create new MS Word Document" feature from the Windows Explorer "New" menu in Vista64, and I like having the portable apps that I can just copy into place rather than having to install them. Apparently Vista only seems to allow registered programs to be selected for inclusion in its usual way of accessing the right click "new" menu. Is there any other answer than having to use software that's included in the registry? Thanks!