Testing in IE6 with IE7 already installed

My brother in law works for a major textiles company, and his company laptop still has IE6, even though it's XP, even though IE6 is quite dangerous, and even though their IT department maintains some control over its computers. This is why IE6's usage is still much higher that it deserves.

Now that I've found this, though, I don't have to wait until I go home to test on IE6:

http://dhtmldev.com/content/view/128/30/

Just unzip, and there you have a stand-alone IE6. How nostalgic.