I know that Windows Explorer has the ability to manage pairs or groups of files as a single entity, at least with HTML files saved using Internet Explorer.
I'd like it to handle other pairs in a similar manner; specifically, I'd like to hide the "XMP" files that Photoshop saves alongside "CR2" image files (essentially, it contains the metadata for how the Canon Raw image was opened/developed).
Is there a registry tweak that would allow this behaviour, or would I need Canon or Adobe to implement all sorts of COM interface magic?