Well Guys here is the question I asked:
"Will I get a full retail licenced version exactly the same as at a Microsoft Retailer? If I build a new PC in the future, replacing my current PC, will I be able to use the disc and licence to install windows or will I need to buy another licence??"
and here is the reply direct from Microsoft:
"I guarantee you it is a full retail version (the WGA Kit). Its the exact same thing, except it comes with a nice letter from our Director (Dave Lazar, as said earlier).
In addition, we distribute the Product Key and a special WGA Kit specific update tool so you can update your Windows to a legitimate version while the physical CD is in the mail.
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In regards to your new PC replacement - yes. I must warn you though, that you will have to go through Product Activation (probably through telephone) to verify that you have only installed on one PC. If you check the FAQ (on
www.microsoft.com/genuine) , it will give the highlight of what Product Activation is, and the checks in hardware changes and tolerances we allow before we request a phone activation."
This seems like a genuine reduction to me.