kazaa lite is full of spyware mate i suggest you remove it.
file sharing is an interesting subject in law, you know its a human right that files on a computer can be shared, and thats why its hard to file lawsuits against individuals. P2P file shring is legal. What napster got caught for is that not only was there P2P but napster had their own hard drives in the companies name that stored copyrited files also for download by users at high speeds. Napster was only sued because they were a company illegally supplying individuals with the files.