There is no direct way to get a person's IP via Messenger as all text communication goes
through the Messenger servers. The only exception being if you accepted an invitation for a
direct connection (that is, file transfer, voice/video conversation, etc.) in which case then
the IP would be exposed.
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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