Run IE6, IE7, and IE8 on the same PC!

Web designers and developers rejoice—browser compatibility testing just got a whole lot easier! For years we've been complaining to Microsoft about the fact that you can't have more than one version of Internet Explorer installed on a computer at the same time. So the only way to test a web site in multiple versions of IE was to use multiple computers, virtual machines, or resort to various hacks. None of these methods was ideal and all left us wishing for a better way.

I.IETester (For the IE problem specifically) :

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





http://www.my-debugbar.com/wiki/IETester/HomePage


II. XenoCode :

Meet Xenocode. Xenocode is basically a way to virtualize applications. This product allows software developers to package applications into a self-contained executable that can be run directly without having to install anything.

Xenocode has decided to demo the technology by creating a browser sandbox. They've created free virtualized versions of Internet Explorer 6, 7, and 8; Mozilla Firefox 2 and 3; Apple Safari; Google Chrome; and Opera.

Finally! You can now easily run multiple versions of Internet Explorer on the same computer!