>Do you know, MSDN is a free product? In this case, is there a link where I can download (I know, it's about 2 Gb...)

Right now, MS is offering a free one year subscription. Go to:

http://msdn.microsoft.com/subscriptions/offer/faq.asp

for details. A one year subscription is four quarterly copies of the MSDN CDs or DVD. With a CD, there are three of them. I install the complete library on my machine every quarter. It's an invaluable tool.