Trying to make script to see if Windows 7 is activated.

One of the simplest things I need to do, and I cant do it. All I need is a script that checks to see if Windows 7 has been activated.  I looked through many of the WMI references from the website below and cant find the right one to query.

http://www.activexperts.com/admin/scripts/wmi/vbscript/

I was wondering if anyone has one.

Thanks in advance!!