rem: var msgComposeService = Components.classes["@mozilla.org/messengercompose;1"].getService(); msgComposeService = msgComposeService.QueryInterface(Components.interfaces.nsIMsgComposeService); 
add: var msgComposeService = Components.classes["@mozilla.org/messengercompose;1"].getService(); msgComposeService = msgComposeService.QueryInterface(Components.interfaces.nsIMsgComposeService); 
context: function AbNewMessage(){  var msgComposeType = Components.interfaces.nsIMsgCompType;  var msgComposFormat = Components.interfaces.nsIMsgCompFormat;  var msgComposeService = Components.classes["@mozilla.org/messengercompose;1"].getService();   msgComposeService = msgComposeService.QueryInterface(Components.interfaces.nsIMsgComposeService);   msgComposeService.OpenComposeWindowWithValues(null, msgComposeType.New, msgComposFormat.Default,                                                GetSelectedAddresses(), null, null,                                                null, null, null, null, null); } 
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/eaa6754a0a946375badf1165b3e4af3999e4b03c/abCommon.js/clean/mailnews/addrbook/resources/content/abCommon.js