Maybe this will be util:
ROBOT/SPIDER msnbot/0.11
Company Microsoft Corporation
Company URL www.msn.com
Robot/Spider URL http://search.msn.com/msnbot.html
Footprint msnbot/0.11 (+http://search.msn.com/msnbot.htm)
Comment msnbot/0.11 is a spider used by Microsoft Corporation @ www.msn.com