We all know that using Internet Explorer (especially older than IE 7 versions) causes a headache to all of us. So, if you want to disable your site to work with IE 6 and also do not want to cause inconvenience to your visitors, you can use this user control in order to provide them with information to upgrade their browsers.
This user control simply overlays the screen and works like a modal popup. If the user tries to open your website with IE6 or older versions, they will see the following:
Images and error message are configurable from the options of the user control.
P.S. : You need to include JQUERY library (if you haven't already) .
Advice : Using this control in master pages is much more suitable.