add: catMan.addCategoryEntry("command-line-handler", "m-edit", ContractIDPrefix + "edit", true, true); 
context:   registerSelf: function (compMgr, fileSpec, location, type) {    var compReg = compMgr.QueryInterface(nsIComponentRegistrar);    compReg.registerFactoryLocation(nsComposerCmdLineHandler_CID,                                    "nsComposerCmdLineHandler",                                    ContractIDPrefix + "edit",                                    fileSpec, location, type);    compReg.registerFactoryLocation(nsComposerCmdLineHandler_CID,                                    "nsComposerCmdLineHandler",                                    ContractIDPrefix + "editor",                                    fileSpec, location, type);    var catMan = Components.classes["@mozilla.org/categorymanager;1"].getService(nsICategoryManager);    catMan.addCategoryEntry("command-line-argument-handlers",                            "nsComposerCmdLineHandler",                            ContractIDPrefix + "edit",                            true, true);  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/35bdccdffdd4b1aa594524fad0b56b2da9b49155/nsComposerCmdLineHandler.js/clean/editor/ui/nsComposerCmdLineHandler.js