| filename extensions | art-335 |
| z4 | |
| TechTarget file types | art-336 | Z4-Infocom-game-module-for-Z-machine-version-4 |
| TechTarget file types | art-336 | Z4-Zonealarm-Mailsafe |
| English | eng-000 | Infocom game module for Z- machine version 4 |
| English | eng-000 | Zonealarm Mailsafe |