Yes you do! and I don`t think they are safe as they use your computer what you have downloaded so far to pass on to the next person or computer which is downloading the same programme. Also depending on how big the programme is that you want it will take hours so therefore you are on line forever. I get enough junk come down the line and i only go online for 2hrs a day. You takes your chance!! Also i have just remembered it will use your computer to pass on that programme whenever it wants. I wanted to stop it happening and the only way round was to remove the programme and what i had downloaded entirely. I made a disc before though. Hope this helps I am in England London