IETester is a free WebBrowser that allows you to have the rendering and javascript engines of IE8, IE7 IE 6 and IE5.5 on Windows 7, Vista and XP, as well as the installed IE in the same process.

It’s still in ‘Alpha’ but it is working! Take a look at the website and download it for free!

Known ‘Alpha’ problems and limitations :

• The Previous/Next buttons are not working properly
• Focus is not working properly
• Java applets are not working
• Flash is not working on IE6 instance in user mode : A solution is to launch IETester as admin user and Flash will work.
• CSS Filters are not working correctly in user mode : A solution is to launch IETester as admin user and CSS Filters will work.