var err = initInstall("RSS Support", "RSS", "$Version$"); logComment("initInstall: " + err);// RSS Extensionvar fProgram = getFolder("Program");logComment("fProgram: " + fProgram);err = addDirectory("", "$Version$", "bin", fProgram, "", true);logComment("addDirectory: " + err);var jarFolder = getFolder("Chrome", "newsblog.jar");fTarget = getFolder("Program", "defaults");logComment("fTarget: " + fTarget);err = addDirectory("",                     "bin/defaults", // dir name in jar to extract                      fTarget,        // Where to put this file (Returned from GetFolder)                      "");            // subdir name to create relative to fProgram addFile("RSS Service",        "bin/components/newsblog.js",        getFolder("Components"),        "");registerChrome(SKIN | DELAYED_CHROME, getFolder("Chrome","classic.jar"), "skin/classic/messenger-newsblog/");err = getLastError();if (err==SUCCESS)    performInstall(); else    cancelInstall(err);