If you mean actual Windows Messenger 4.7 Add-Ons, no. If you mean Add-ons, in the form of
third-party utilites, there are plenty, see the download section at http://www.mess.be for a
good majority of them. The most popular is Messenger Plus (http://www.msgplus.net).
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Jonathan Kay
Microsoft MVP - Windows Messenger/MSN Messenger
Associate Expert http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources - http://messenger.jonathankay.com