Programs written or published by Martin Kellner
| Name | Version | Updated | Category |
|---|---|---|---|
| JJ-Edit+ | 1.11 | - | Editors - Oldies |
| JJ-Black | 1.01 | - | Screen saver |
| JJ-Datum | 1.22 | - | Clock - Time setter |
| JJ-Adresse | 1.40 | - | Address database |
| JJ-Files | 2.00 | 25.06.1990 | File management |
| JJ-Ascii | 1.30 | - | Viewer |
| JJ-Load | 1.04 | - | Bootmanager |
| JJ-Druck | 3.0 | - | Printing programs |
| JJ-NLQ | 1.0 | - | Printer - Fonts |
| JJ-Pica | 1.0 | - | Printer - Fonts |