rem: return Components.classes[aID].getService(iid); 
add: return Components.classesByID[aID].getService(iid); 
context:   getServiceByID: function (aID, aIID)      {      try        {          var iid = Components.interfaces[aIID];          return Components.classes[aID].getService(iid);        }      catch(e)        {        }    }
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/8c0cf89fe915743abbc88b796a6a1b37356db2dc/nsJSComponentManager.js/clean/xpfe/global/resources/content/nsJSComponentManager.js