We need a desktop app for windows which will run full screen and will open a url using WebKit or webview or html viewer.
A user won't be able to close the app until a particular url is opened.
User won't be switch to any other app when our app is running, it will be running in always top so no other app can be used.
We will provide you both urls and urls should be easily configurable so we can change later easily.
I have already made a working version of the program that you specified in your description. It reads urls from a text file and does not allow the window to be left until the last url has been loaded.