| 92101 || AMSDOC || Patched AMSDOS with sub-directory support. ||
|-
| [https://www.cpcwiki.eu/imgs/2/20/Robot-PD_92102_%2819xx%29%28Robot-PD%29%28Disk_1_of_1%29.zip 92102 ] || MS800 || ROM version of 800k DOS. || XC, 6128 only
|-
| 93100 || Charley's Comms ROM || Advanced comms system with YModem support and RSXs. || XC, *