Add custom menu items to the Finder context menu

Question

How do I add custom menu items to the context menu for files in Finder?

Unfortunately, most of the information out on the Internet and on Stack Overflow doesn't work in 10.6 or are too limited. Automator, for example, doesn't allow you to create items dynamically or create submenus.

I know it's still possible to do this sort of thing because Dropbox and FolderGlance both do similar things. Does anyone know how they implemented this?

Thanks.

Answer 1

For what it's worth, Dropbox now uses mach_star for code injection. Obviously this is a fragile solution. If you look through their version history, many of their updates are to fix finder integration.