Metadata

I'm pretty sure metadata is what it's called... anyways...

I was wondering if anyone knew of a program, portable or not, which allows you to add metadata to files... any file... and then allows you to search the metadata.

For instance, say you're working on a project, let's call it "project X". you add metadata to all the files related to that project which says "project X". Then, you can search for "Project X" and all your files related to project X, be they in MY Pictures, My Documents, Or on the desktop, come up. You could even tag it with Project X and Project Y , so it would show up in either search. All with the name being something nice like "Schedule for doomsday device".

Thanks,

MAT