I highly recommend to anyone who has installed *WINDOWS MESSENGER 5* :
Install A Small Program called Reg Cleaner 4.6 (can be found FREE on
http://www.download.com, just search for Reg Cleaner)
Then select ALL registry keys with Windows Messenger, uninstall and clear the registry for MSN Messenger. This will clear you Registry with both of them. The all you have to do, via www.download.com again, is to install Windows Messenger 4.7, and MSN Messenger 5.0. Both of thses are stable, (cough cough) and will work with the lovely Messenger Plus! 2.