The Mace Utilities, from Paul Mace Software, is a suite of disk and system tools similar to the Norton Utilities and PC-Tools. Notable features in included the ability to undelete files, recover re-formatted disks, a defragmenter, and disk caching software. In 1989, Paul Mace Software Inc sold the Mace Utilities to 5th Generation Systems. After "Mace Express" in 1991, the product seemed to vanish?