Rainer Dorsch wrote: > I would like to handle an URI of the form xyz://bla when embedded in a > HTML or PDF document by starting an application appxzy with the argument > > appxyz xyz://bla Hi Rainer, You should not define a new file association but a new protocol. Have a look at the .protocol files in /usr/share/kde4/services/, create a new one for your new protocol and put it in ~/.kde/share/kde4/services/. Regards, Yannick