Be carefull with Kazaa it just ain't spyware it's part of a distributed network computing.  Tey've piggybacked software into there install for a long time and didn't tell anyone  They just turned the network on for some computers and are now using those computers to serve up 3D web adds.  Isn't it ironic that they use home users computers to serve up the one thing we get tired of.  Any way http://www.lavasoftusa.com/ has the software to clean it out more than likely but it may leave it unusable.  Currently I use freewire to download stuff and Divx Lunacy to play clips.  No known spyware on either.