Apparently you can install multiple versions of Internet Explorer on one machine! This is very cool.
Safest Universal Technique (XP Pro/XP Home/2000)
Find the following files in the installation files of IE 5.01 or IE 5.5 SP2
Use WinRar extract theses files to a new directory.
Then do the same with the resulting files
Next delete the following files
COMCTL32.DLL(found this in IE 4.01 SP2, which I am working on now)
And finally create a blank text file named… you guessed it… “IEXPLORE.exe.local”
And BAM!!! – you got yourself a standalone version of IE!
Multiple Versions of IE on one machine!