Tomas Kral has ported an early version of Zip to QL using the qdos-gcc compiler, the idea being to learn, improve and have fun with C coding. Tomas says that this version needs less memory and does not support level 2 directories and is generally better suited to bare QLs with minimal expanded memory. He says it’s not intended to replace the existing work of Jonathan Hudson.
Follow his progress on the thread ‘QL Zip Port of Infozip v19’ on QL Forum http://www.qlforum.co.uk/viewtopic.php?f=3&t=1704