KMS Server and old keys

Hi there

I have XP Mak keys and now im going to implement a KMS server to serve those MAK keys and also KMS keys for Windows 7 and windows server 2008.

Do I need one KMS key for every version of windows?
How can I handle the XP MAK keys I have to use with the KMS server?

Thanks so much
M7KAsked:
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PowerToTheUsersConnect With a Mentor Commented:
Volume licensing in XP didn't use KMS or MAK as with Vista/7. An XP volume key can be used unlimited times, so you don't have to worry about that: you can stil use your old keys.

Vista and 7 however had a new volume activation model, using MAK and KMS.
With MAK you can use the same key a certain amount of times (500, 5000,... you can find this on the volume licensing website). Each computer activates to the Microsoft-servers, so MS keeps count of how many times you have used your MAK-key. (Contrary to XP, where one multivol-key could be stolen/leaked and used illegally on millions of computers worldwide).
With KMS you have some kind of a local activation server. You set up the KMS-server, activate it with microsoft (using the KMS key). Microsoft activates that KMS-functionality and from then on the KMS-server can activate your local clients which are installed from a volume licensing media. But that's only for Vista/7-clients.

You can use a KMS for Windows 7 clients to activate Vista's too.
More information can be found at http://www.microsoft.com/licensing/existing-customers/product-activation-faq.aspx http://technet.microsoft.com/en-us/library/dd979803.aspx and http://download.microsoft.com/download/2/D/F/2DF30F9F-829C-4F14-AF1B-DC20AB8CA84C/Windows_Volume_Activation_Reference_Guide_October_2009.pdf
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