Product activation technology is included in
some Microsoft products and solutions acquired
through Microsoft Volume Licensing. A product
key is required to activate these products.
The VLSC makes it easy for you and your customers to manage Microsoft Volume Licensing agreements, download licensed products, and access volume license keys online.
Your customers can call their local Volume Licensing activation center directly to request their volume license keys. You can call on a customer’s behalf, but you must have the software license agreement number to get the volume license keys.