Setting focus to a specific file in the webbrowser control

Hi all,

When using the webbrowser control like Windows Explorer (to navigate my hard drive), how can I set focus to a specific file in the control?

Also, i'd like to be able to tell it to ensure visible on that file as well (make sure that when it is focused on the scroll bars will scroll to the right spot to make sure it is visible to the user).

Thanks,
Nathan