They are various sects and cults which "see Jesus as another prophet". This does not mean that they actually incorporate the New Testment. New Testament and Koran are quite apart.
Your response was to the wrong person. "pcx99" posted the following politically correct nonsense: "Islam may very well be a cult and false religion, for that matter so may christianity. But because they all have the old-testiment at their core (and islam has a form of the new testment incorporated since they see Jesus as another prophet) they, by all definition, worship the same exact god. Merely seen through different eyes."