Final is out now if anyone is interested to know.
Works on just about every Windows from XP Bar Xp 64 and the server OS based on same thing, really bloody annoying. 8.5 Had the same but if you got the full MSI you could install it and it works fine but the buggers have put a OS check on the offline installer as well, f**kers! lol

God Bless you Bill Gates

                       

Its also prompted a slight change in the MSN protocol, so those of us using other chat clients on non-MS operating systems are having issues. Grr.

Im still using Trillian , but it sucks for file transfer as you know

I discovered something cool the other day when I signed in to messenger on my phone, on my computer it popped up saying I was connected via another device, would I like to remain connected on this computer also. I chose yes and it informed me that any messages sent/received would now show on both devices!

Pretty cool, before it just used to sign me out if I signed in elsewhere!

Yes thats a great new feature, you can disable it if you dont want messages collecting on two computers though.