I recently went to a job site where a client bought 4 Windows 7 Keys from an online retailer ( not Ebay) they advertise Windows 7 for 29.00 each. After 4 months the keys were no longer genuine. When I got onsite I used a tool from my kit that gives me detailed information on each key. Well as you might of guessed, they were all MSDN keys which are Illegal to sell. The site is from China and did not respond to 3 emails. The client had to purchase 4 genuine Micrsoft kits for $109.00 each. They were less then impressed to say the least. I have found 5 of these sites so far all from China, ( Just google cheap windows 7 keys) I would love to know how these crooks stay in business, Needless to say I did report them to microsoft. Any onle else have any experience with these sites?