For those that are creating websites, there's always a need to test the application with old versions of Internet Explorer.
Specially for our team, that creates web based applications to be used by users that work in banks. Banks are known to not change their desktop installations very often. There is old phrase that applies here. "If it works, don't touch !!!". So nowadays, all our users are still using Internet Explorer 5.5 or 6.
Us, the developers, always want to use the latest versions of each product, and forgot who really will use our applications.
Tredoft releases the application Multiple IE, that allows you to run multiple versions of Internet Explorer on the same PC. Donwload it here.
Note: If you are running Windows Vista, please read the instructions here.