In the article only passwords were created. Where as when setting up a pptp connection using XP you can create a set of keys wether they be 8 bit 16 or much higher. I know very little about encrpytion but I was figuring since we didn’t creat any form of a key its not really encrypting it but I could be wrong. I also just read an article about PPTP in os x not supporting encryption and that some people had issues connecting to office computers that required it.