After you install MSN 8.0, or MSN Messenger 5.0, both Windows Messenger and MSN Messenger 5.0 appear in the All Programs list and in the notification area of your taskbar?

MSN 8.0 installs MSN Messenger 5.0. When you install Windows XP, Windows Messenger is installed. These are two separate instant messaging programs.

NOTE: See 330117 - Running Both Windows Messenger and MSN Messenger 5.0 in Windows.

NOTE: See When you start Windows XP, MSN Messenger starts but Windows Messenger does NOT start?

NOTE: See http://messenger.microsoft.com.

NOTE: See 307887 - HOW TO: Use Windows Messenger Instant Messaging in Windows Messenger.