/usr/share/kde4/services/ed2k.protocol is in plasma-widget-amule 2.4.0~git20151120.0023527bc2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | [Protocol]
exec=plasmamule-engine-feeder %U
protocol=ed2k
input=none
output=none
helper=true
|