Here are two interesting tools I found while working on our Silveredo 2 theme.

Install Multiple Internet Explorer Versions

This one is quite helpful and a must if you are working and building themes. Usually you want your theme to be compatible with FF2/3 and IE7 which we all know has its issues…

I bet there are many people who want their site to be compatible with Internet Explorer 6 too, having IE6 and IE7 working together on your windows is a problem, as it turns out, you CAN have all the Internet Explorer versions working along side each other, all you have to do is to download the multiple IE version installer and install any version you need.