A computer system having a computer, a custom filesystem, and a real filesystem is disclosed. The custom filesystem is comprised of virtual files that may be mapped to a subset of real files of the real filesystem. The custom filesystem may provide an arrangement of the virtual files to a user through the user interface. This limited arrangement may present the virtual files in a hierarchical arrangement that may be easily navigated and customized for a particular computer, group of computers, computer user, or group of computer users. The custom filesystem may maintain its own metafile information for the virtual files.