I needed to install the dev versions of all libraries mentioned (plus kdelibs-dev, not so shure, if that was necessary) First time it should open kuaipan's webpage through the systems browser (which I opened manually before). There you enter name and password in the form and kuaipan is showing the password, you have to enter in dolphins PIN request, so it can make use of the API. If you enter (like me) something wrong as PIN, you have to delete the empty file ~/.kde/share/config/kio_kuaipanrc (or where ever the file is located). Only then! dolphin asks again and you can input the correct PIN. Then it creates a folder in your kuaipan online space called 我的应用, in there a folder KIO快盘. This folder is synchronised with kuaipan:/ in dolphin. You dont have access to all your folders online. Nicer would be to access all folders, but ... Still great! Thanks a lot!感谢 nihui! For people able to read chinese: More clear on the chinese website http://www.ikde.org/news/kio-kuaipan/