Possible to include all files in a directory, and make them hidden?

[wrybread]

I'm wondering if there's some way to include all files and subfolders in a directory, but make them hidden?

I see the SetFileAttributes command, but I don't see a way to combine this with the File command.

I'm including all the files and subfolders in a directory like this:

code:
File /r "C:\files\*"

Is there a way to do that, but make all the files hidden?