Double Password creates a key to your OS, writes it onto a USB gadget and voila: no one, except you can log into your Windows. You can configure the program so, that it will allow your system to operate only if your flash drive is inserted. Double Password features special protection against password spies a special encryption method. Double Password can turn almost any USB gadget into a smart security token. No key - no access.
||Free to try
||Windows NT/2000/XP/2003 Server