microsoft Academic license

As part of your Microsoft Academic agreement, you are assigned the keys for the products. But you still must have a valid purchase order against for the software to entitle you to use them. It's based on trust.

you mean that is just for test ?

No they are real licenses, but you are not entitled to use them, unless you have purchased licensed.

So if you have purchased a Windows 2008 Enterprise License, that is the license you are entitled to use, but as you have an Academic Agreement, you will have access to all the product licenses.

A KMS key is used with a Key Management Server - which allows YOU to run an Activation server instead of using Microsoft's activation servers.  You should read up on this if you want to use this because there are some minimums that MUST be maintained or you'll have problems.

A MAK key is a Multiple Activation Key and is what you've been traditionally using.

i mean the windows xp and windows vista and windows 7 :)

what do you want to know about them?

why i see it ? i just paied for windows 2008 r2 ent :)

Under an Academic Agreement ALL the licenses are sent to you.

You use the license key that you've paid for.

You are only entitled to use the License Keys that you've paid for. Check your Microsoft Academic Agreement of Schools Agreement for details of the program.

It just makes it easier and quicker for you, should you want to purchase and deploy Windows 7, you can start now, you have the keys, provided a purchase order is in the system to purchase the licenses.

thanks.