How do I install multiple versions of Internet Explorer on Windows 7? [duplicate]

I need to do this to test and debug a web application on multiple Internet Explorer versions

For this purpose Microsoft offers a variety of Internet Explorer Application Compatibility VPC Images, which are VHDs to be used with MS Virtual PC, they are pre-activated and free.

I've used MultipleIE in the past, but it's a bit of a pain since it's no longer supported, didn't support Vista and stopped at IE6.

I've been using IETester, but I find it to be somewhat crashy on Win7. There's probably an update I can run to fix that, though.

I'm looking into, and likely will switch to, the IE Collection. The IE Collection allows you to install any version of IE up to 8, yes dating all the way back to version 1 if you're feeling particularly self-punishing.

If you're running Windows 7 you might be able to run Windows XP mode. With Windows XP mode you can have Internet Explorer 6 running side by side with your local Internet Explorer 8.

The only thing is that your computer and BIOS have to support Virtualization technology. Download Windows Virtual PC and Windows XP Windows Virtual PC and XP Mode.