A workaround has already been found to bypass the IE7 Windows validation check during install.
You must have Windows XP Service Pack-2 (SP2) in order to install Internet Explorer 7.0. But still you will face a problem while installing this new Internet Explorer if your copy of Windows XP is not a genuine (non-pirated) one, since IE 7.0 installation requires genuine windows validation!!! So what to do??? Don’t worry… There are some tricky steps through which you can install IE 7.0 even in your pirated copy of windows XP bypassing the genuine windows validation.
- Link (via Lifehacker)