What is "lusernet"

LUSerNet (pronounced Loser Net, roughly standing for Lancaster University Student Network) is a free peer-to-peer package for use on local area networks, developed between the end of 2001 and late 2002 by a Lancaster University first year Computer Science student known as 'bramp'. Following the sudden and massive popularity of the program, the University's network system was brought to near collapse, and forced the network administrators to completely redevelop the network to cope with the program, earning the program cult status. It is now being used in other universities than Lancaster, and has even spread to America.