Well no its not spyware....Its comes froma fresh install of windows........If u havent fixed it got to RUN and type services.msc (and click ok) the your should have a list Find the one that says messenger right click on it...go to propertys and the you will see a new window that poped up ....click stop .....then disable it ...by click on where it says automatic(sumtin like that) change it to disabled then apply...no it will no effect your msn messenger