| Program | Role | Version | Date |
|---|---|---|---|
| Calamus Font | Programmer | 1.0 | 1994-11-05 |
| Iconeer | Programmer | 1.00 | 1993-03-14 |
| Deskjet 500 | Programmer | 1.10 | 1992-06-14 |
| Bilddruck | Programmer | 1.30 | 1991-10-01 |
| Textdruck | Programmer | 1.02 | 1991-10-01 |
| Bilder-Archiv | Programmer | 1.32 | |
| Copy and Delete | Programmer | 1.00 | |
| HP 48 | Programmer | ||
| HP-Init | Programmer | ||
| HPDESK | Programmer | 3.31 | |
| Massenspektrometrie | Programmer | 2.10 | |
| Notenverwaltung (Lutz) | Programmer |
