| Program | Role | Version | Date |
|---|---|---|---|
| Euler | Programmer | 3.04 | 1993-05-13 |
| CAR - Circel and Ruler | Programmer | 1992-10-23 | |
| RMAT | Programmer | 1991-01-07 | |
| MP-Editor | Programmer | 1.01 | 1990-12-08 |
| 3D-Blöcke | Programmer | 1990-05-16 | |
| Disk-Cache | Programmer | ||
| EASY Library | Programmer | ||
| Ephemeriden der Planeten | Programmer | ||
| RAMDISK (Grothmann) | Programmer |
