Leaked copies of Windows 7 Beta Build 7000 came accompanied by links pointing to MSDN and TechNet, revealing the intimate connection between the pirated versions of the operating system's first beta testing milestone and the Redmond company's portal for developers. These are the links in full:
http://msdn.microsoft.com/en-us/subscriptions/downloads/details/default.aspx?pm=p:350; http://technet.microsoft.com/en-gb/subscriptions/downloads/details/default.aspx?pm=p:350.

However, at the time this article was being written the pages were no longer accessible, although they were live on December 28, 2008. Google and Live Search caches details are still available, as you can very well see from the screenshots. Microsoft is also offering product keys designed to activate the operating system. You must be signed in to Windows Live ID to access product keys and initiate downloads.

Source:→ Softpedia