Hello,
They now ask you automated questions on the Microsoft Product Activation phone line when records show that you've activated too many times.
Questions include: 'Is this the first time you've activated Windows XP?', 'On how many computers is this copy of Windows XP installed on? One, two or more?' and 'Did you change the motherboard?'.
I've lost count of the amount of times I've had to go through the lengthy and annoying process of activating Windows XP via telephone.