ColonelCrockett: Some do. And these kind of programs are very dangerous as hakers will usually find the back door and figure out how to exploit it. I recomend people check out hacking web sites. Good way to find out how secure your stuff really is. But a good programer that doesn't want to get suid will not include a back door but instead will have an automatic update script wich checks the web site for new updates and asks the user if they want to download them. This way can only be hacked by taking over the server. And the user still has the choice of wether or not to download it.