This guideline is attached to the account request form that is given to each student who requests an account with Adelphi University. In short, this means that if you have a program such as Napster and it is slowing down the performance of the systems resulting in a disruption, then action can be taken. And that is exactly what Napster was doing. Students also are speculating that the suspension of these programs had more to do with Napster's current legal problems. Since Napster is currently in the courts on whether or not programs that allow people to receive free music should be legal.
Some students feel that the school is blocking the access to the programs based on that principle.