application that force windows to use a specific dns server

This project is to create a windows application that force windows to use a specific dns server (ip address). This program should be able to run on Windows 2000/XP/Vista and 7. Program requires an installation wizard as well. The system require username and password in the installation (the username and password have to be checked in a web database you’ll have access - or with a web service as you want) After that the system FORCE windows to use a specific DNS server also if the user putted another dns manually. In the tray icon appears the icon of this filter and you can unblock (left button on the tray icon) the software writing the password you put in the installation phase Of course you can block the dns in the tray icon If user uninstalls the software the system has to make a post in the web server with the right username (asking “Are you sure you want to uninstall the system? An email will be sent to email address you gave when you registered” the texts will be in Italian That’s all