I often use Internet Explorer 7 for testing my application and always have difficulty to test in IE 6 because Microsoft only allow one browser version on the OS. I don’t want to use Virtual PC 2007 and install another virtualized Windows XP, because I need it fast and hate to wait the installation process.
I browse around and I found great site to webdeveloper who aware about IE 5.5 / 6 appreance, you could go to http://tredosoft.com/Multiple_IE to download several former IE installer before IE 7 in one Installer!. You work on same machine, no need to installing VMWare or Virtual PC 2007. Take your time and try it!.