Version: 4.5 (using KDE 4.5.2) OS: Linux Clicking a mailto:// link in a web browser, for example the one in the second paragraph of https://mail.kde.org/mailman/listinfo/kde-announce does not open kmail or any other email client. Instead it gives an error. Reproducible: Always Steps to Reproduce: 1. Click a mailto link in a web browser. Actual Results: "Error KIOExec" message appears: "Could not start process Unable to create io-slave: klauncher said: Error loading 'kmailservice %u'." Expected Results: A "compose" window opens in my email client of choice, with subject, reply-to, etc, filled in as required. Altering the first line of /usr/share/kde4/services/kmailservice.protocol from "exec=kmailservice %u" to "exec=kmailservice" partially fixes the problem. In this case, a compose window is opened, however only the address field is passed in, not the full mailto URL. This is a regression from 4.4, where mailto links worked fine.
Fixed in r1183578 for 4.5.3.
*** Bug 254655 has been marked as a duplicate of this bug. ***