Its not possible to install multiple versions of Internet Explorer in a Windows. If you are a web developer or designer, you need to test the web application in all browsers. And testing in all versions of IE is important as the web application may behave different in different versions.
Once the latest version of IE is installed, it will rewrite the old version present in the system. You can use multiple IE to install the previous versions in the system. Multiple IE is freeware, which has been bundled with IE 3.0, IE 4.01, IE 5.01, IE 5.5 and IE 6.0 into a single package.
Click here to download multiple IE
Some Important Notes from its developer:
- The installer was made to work with Windows XP. With a little bit of hacking it could run on Windows 2000 but this was not tested. See some of the comments below for ways to run Multiple IE on Windows 2000 (page 4).
- The Developer tool bar from Microsoft WILL NOT work in IE6
- Sometimes IE5, IE5.5 and IE6 crash unexpectedly.
- Multiple IE doesn’t work on Windows Vista. Follow the progress of running Internet Explorer 6 natively on Windows Vista here!
- Read the comments before asking questions. Most of the issues have been discussed below.
- Microsoft supplemental EULA says : IF YOU DO NOT HAVE A VALID EULA FOR ANY “OS PRODUCT”, YOU ARE NOT AUTHORIZED TO INSTALL, COPY, OR OTHERWISE USE THE OS COMPONENTS AND YOU HAVE NO RIGHTS UNDER THIS SUPPLEMENTAL EULA.
- Update December 2007: A recent windows update broke the Multiple IE installation and unfortunately this means you’ll have to reinstall Multiple IE to get it to work again. I haven’t yet identified which update broke the installation.