Where kde stores config files?

["Bruno Buys" <bruno.grupos@gmail.com>]

This is etch with kde 3.5.5. I'd like to find the config files responsible for the right-click context menu in konqueror that display the 'eject' function to open my dvd tray.
In sarge it used to be like ~/.kde/share/apps/something-like-servicemenu...
Anyone knows? thanks!