Kurllaunch should be assigned to the file extension '*.url' which is
used to identifite URL shortcuts. So if you click on a URL shortcut the choosed
browser should start and show the content of the target, on which the
shortcut points.
More KURLLaunch features
If you call KURLLaunch wihout any parameters, you will show a
GUI on which all available browsers are listed. You can select
the browser which should be used to open the URL-link.