A remote administration tool (or RAT) is a program that allows certain persons to connect to and manage remote computers in the Internet or across a local network. A remote administration tool is based on the server and client technology. The server part runs on a controlled computer and receives commands from the client, which is installed on other remote host. A remo te administration tool works in background and hides from the user. The person who controls it can monitor user’s activity, manage files, install additional software, control the entire system including any present application or hardware device, modify essential system settings, turn off or restart a computer. after this aaply these steps... Go on http://www.no-ip.com/ , Create your Account and click on "Download". Now Click on "Windows Now Click on "Download 3.0.4" Now you must install No-DUP 3.0, Click on "Next" Now, choose "Install Location" and click on ...