While I was adding Google Search to my other blog, I tested it with both Firefox and Internet Explorer 7. When my wife called me via Yahoo Instant Messenger in the wee hours of the morning (my morning, her afternoon), she told me it was all jacked up in Internet Explorer 6. Her cousin never upgraded to Internet Explorer 7.

I thanked her for the information, of course, but now I was in a dilemma. I didn't have IE6 on my PC. I had IE7 and from what I'd read before, there wasn't anyway to run two versions of Internet Explorer on one PC without setting up a virtual machine. For my own peace of mind and to make sure there wasn't some other option, I searched for information via Google.

Well, I landed on one blog that referenced another, which referenced another, which referenced another until I finally found what I was looking for. As I write this, I'm looking for it again to pass the link onto you. Ah, here it is: Install multiple versions of IE on your PC.

Internet Explorer 6 has been out for more than five years, so I didn't bother to load up 5.5 or earlier. I know things look weird in that without testing with it. I loaded IE6 while IE7 and Firefox were both running and it worked without a hitch. It was then that I discovered that the input box needed to be reduced in size in order to fit in the sidebar properly in IE6. It looked fine in IE7 and Firefox, but the overlap in IE6 shoved it halfway down the sidebar.

If you have a PC running Windows XP (it doesn't work for Vista) and you want to test your blog design in multiple versions of Internet Explorer, you need this software. I won't be testing without it ever again.

Correction: A comment by Mike on the same site tells you how to run IE6 on Vista.