Internet Explorer 8.0 for Web-Client ?

Internet Explorer 8.0 for Web-Client ?

Hi,
My Web-Server and Web-Client work well with Internet Explorer 7.
But these days, you know, because of the automatic update of the Microsoft, some of ours browser is changed to Internet Explorer 8.0. Then, when we start the Web-Client by Internet Explorer 8, it doesn't work.. An error window is shown :

Message for webpage
Microsoft Internet Explorer : 4.0 (............) is not supported !

But, sure, my browser is IE8 instead of IE4! So how can I resolve this problem?

This is a migrated post! Originally posted on 26.06.2009 by user lephis. Please be aware that information can be outdated.