Internet Explorer always give me headache when I am creating a website. Sometime, it looks good in IE7 but it is terrible in IE 6 or other versions. This IETester is a free tool that can help to check the websites in different IE browsers. It is just a browser that doesn’t have many features but enough for testing. It is Windows only (XP and Vista) and required IE7 to work properly.

Or try this multiple IE installer to install Internet Explorer 3.0 from 6.0. But it doesn’t work on Vista.

download: IETester

via Lifehacker