Are you thinking of downloading Windows Messenger 4.5? It just came out a few days ago. I — being the stupid moose I am — downloaded it the minute it came out.
It makes ICQ look nice. This thing won't let me quit it anymore unless I also quit all other apps.
“There are other applications currently using features provided by Windows Messenger. You must close these other applications before you can exit Windows Messenger. These applications may include Outlook, Outlook Express, MSN Explorer, and Internet Explorer.”
Microsoft wants me to keep MSN Messenger loaded. Why? I've never seen an app force itself to stay loaded in memory so other apps can “work.” [Talking Moose]