You need the Native IDE, and you don't need to pair: http://www.espruino.com/Web+IDE#as-a-native-application
See the bit at the end about 'Zadig' too: For Windows earlier than 8.1
For Windows earlier than 8.1
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
You need the Native IDE, and you don't need to pair: http://www.espruino.com/Web+IDE#as-a-native-application
See the bit at the end about 'Zadig' too:
For Windows earlier than 8.1