I'm testing out a new website and need multiple versions of IE available to test with. Several days ago I found a website that provided IE 4.6-6 for download in its own folder. I downloaded, installed and was able to test with IE6, but the machine really slowed down and then the machie started freezing up. With Dell's help, I did a restore to an earlier date and uninstalled everything but IE7. Apart from the fact that I seem to have lost several days work, the machine is now working well. So. . .
What is the best way to install multiple versions of IE without making the machine mad?!