dfile-128 is a Commodore 128 database management system by Mike Konshak/michaelsoft that lets users create custom record files, define fields, add/edit/delete/view/sort/search records, and print information as lists, mailing labels, reports, or calculated reports. It is memory-based, so records are loaded into RAM for fast access, but database size is limited by available memory. It supports 40- and 80-column displays, 1541/1571 disk drives, printer configuration, backups, and conversion of older DATAFILE records, making it a practical low-cost C128 tool for organizing address lists, inventories, collections, memberships, and similar structured data.