Google: http://www.google.com/search?as_q=tcp+udp+41170&num=10&hl=en&ie=UTF-8&oe=UTF-8&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_occt=any&as_dt=i&as_sitesearch=&safe=images http://cert.uni-stuttgart.de/archive/incidents/2003/06/msg00130.html It appears to be a file sharing program called Blubster, at least for udp.... www.blubster.com Later, Jim SNIP Anyone has any idea what is carried on tcp and udp port 41170? Adi