Nominativ

Hello guys, my effing brother installed Windows Live Messenger 9, but it totally sucks, now I tried to delete everything, and that worked fine, then I downloaded 8.5, and when I wanna install it, it gives me an error and says that I need to download Windows Live Suite, but if I download WLS from some links, it only gives me the same .exe file for 8.5 and it gives me the error again, can somebody help me?

Thanks in advance.