For those of you who run GNS3 and/or Virtual Box or VMware and would like to have a free legitimate Windows image, Microsoft Internet Explorer team has provided an answer! Did I mention it is free?
Don't believe me? Go here and look.
You can download different versions of Windows with different versions of Internet Explorer for free! The idea is to let you have a 90 day ability to test. These images are available for Windows, MAC or Linux machines.
You can easily get around the 90 day by creating a clone of the machine once you have it installed, and then reinitializing the clone!
There are full instruction on the Microsoft web site!