There are two files to download to install the ChoiceNet Notifier program. Unfortunately there is no automatic installation process, so you will need to install the files manually.
choicene.exe - The main executable. Download this file and save it to your Desktop.
choicen.ini - The configuration file. Download this file and save it to your Windows directory. (usually C:\Windows)
Now you can double-click on the choicene icon on your desktop to activate the ChoiceNet Notifier.