Hello, You can use VAMT to look at your existing machines, it will specify whether the machine it locates are Using keys such as KMS clients, KMS hosts, MAK, etc. You can also run nslookup to see if the KMS host machines have registered with DNS, which by default they will attempt to do. · nslookup -type=all _vlmcs._tcp>kms.txt Thanks, Darrell Gorter [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights. VAMT - Volume Activation Management Tool - Download link http://www.microsoft.com/downloads/details.aspx?FamilyID=ec7156d2-2864-49ee-bfcb-777b898ad582&displaylang=en

I know you can audit activations remaining on a MAK key, but I'm not sure about a KMS host key. I haven't read anything to that effect, but that doesn't mean it's not possible. Cheers, Lain

Hi all I am promoting a Windows server 2008 R2 sp1 Server as a KMS Host, i had successfully added windows server 2008 R2 Sp1 KMS key by following command. Slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx The key is successfully installed. then i had tried to activate KMS host online by following command. Slmgr.vbs /ato activation failed by following error 0xC004C008 The activation server determined that the specified product key could not be used Internet is provided to the server, and Microsoft license web site display 0 activation from that KMS key (https://www.microsoft.com/licensing/servicecenter/), i had restart the server and sppsvc service. vlmcs record also created in the DNS. Please provide me with a solution to this. Asitha

Hi Asitha, This kind of error message is quite straight forward. It's telling you that it is not a valid KMS host activation key. Where abouts did you obtain this from? KMS host activation keys are usually obtained through your sales channel or via the Volume Licensing site through software assurance (https://licensing.microsoft.com). Cheers, Lain Edited: It is also possible that you have taken a KMS host key for Server 2008 from the VL site instead of the Server 2008 R2 key. They are different keys.

Hi lain yes, it was obtained from volume licensing site, there are two KMS license for R2. Asitha

Okay, I just looked up that particular error code and it seems you receive the error if you have been accidentally/incorrectly using the KMS key to perform activations on machines as though it were a client key. You might want to have a read of this previous post. Keep in mind the volume licensing site does take a while to show activations. Cheers, Lain

Hello, You can use VAMT to look at your existing machines, it will specify whether the machine it locates are Using keys such as KMS clients, KMS hosts, MAK, etc. You can also run nslookup to see if the KMS host machines have registered with DNS, which by default they will attempt to do. · nslookup -type=all _vlmcs._tcp>kms.txt Thanks, Darrell Gorter [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights. VAMT - Volume Activation Management Tool - Download link http://www.microsoft.com/downloads/details.aspx?FamilyID=ec7156d2-2864-49ee-bfcb-777b898ad582&displaylang=en

how could i determine no of activation's from the KMS key ? is it possible through VAMT ?Asitha