Installing file or music sharing programs like Kazaa can be dangerous for the inexperienced.  You can easily open your computer to prodding by others through the internet.  This is a good way to increase your “profile” and invite trouble.

Filesharing and other “free” internet programs typically invite you to install adware and spyware that feed pop-up ads to your computer.  A constant stream of pop-up ads can quickly make your computer unusable.  Among the first is pop-ups is typically an offer to install more “free” software that claims to stop the pop-ups, but is really more adware!

Be sure to confirm the the source for any software you install on your system.