Install IE7 on non-genuine (not) Windows XP

Sometimes when I try to install IE7 on Windows XP SP2, my OS is detected as "non-genuine" by WGA, even though it has been installed with the CD key that is on the sticker on the machine.

I could phone Microsoft to solve the problem, but I found an easy way to bypass WGA and install IE7 anyway.

Here it is: http://fmshaon.blogspot.com/2006/10/how-to-install-internet-explorer-70.html

Thanks Ferdous Mahmud Shaon for the tip.