Microsoft is testing their product validation software on Microsoft Download site. Now this is very good assuming it's completely anonymous. I know that for many people when they buy a new computer, they get preinstalled software and they are not really sure whether it is a licensed product or a pirated version. With the help of online validation, they can now actually see if it is not a pirated copy (still they won't be 100% sure) and also that the key is valid. These small utilities can be found from http://www.microsoft.com/resources/howtotell/ww/windows/default.mspx.
I think that Microsoft should some how get each and every Microsoft product user to test their products on this site to check the validity of thier systems and to see if they were not sold a pirated version or to see if a pirated version is installed on their system.
Tejas Patel