The present invention provides a method for cleavage of labile functional groups from molecules by the action of electromagnetic radiation, wherein the molecules are contacted with a chemical compound whose triplet state is energetically higher than the triplet state of the labile functional group, and are subsequently exposed to electromagnetic radiation. A physical layer provides an object model over the user interface of an application. According to the invention, the wire is first pre-treated by hardening and tempering and is then cold-worked in such a way that the mounting portion and the welding portion have different strengths. Attaching the plug-in includes adding an identification of the plug-in to the descriptor file.