Do you use Kazaa, josh?

I don't know the relation exactly, but I was suffering from very slow shutdowns when I bought my PC. So I called the techie and the first thing he asked me was whether I had installed Kazaa. And it was amazing how much the shutdown process got quicker after uninstalling it. But I still don't know why Kazaa was slowing my shutdown although it wasn't running probably its adware/spyware.