I've already got a KMS server running activating Win7 and 2008R2.
However it doens't seem to activate Win8.
Now i've found this little KB article, Update adds support for Windows 8 and Windows Server 2012 to Windows Server 2008, Windows 7, and Windows Server 2008 R2 KMS hosts with a patch and some isntructions which all looks fine however it sat that I need to improt a KMS host key for Win8 or Server 2012 activation using the command cscript %windir%\system32\slmgr.vbs /ipk <KMS host key>
What exacly am I putting in the <KMS host key> bit. Is it simply the KMS ket from my windows Volume licencing site or is there something else I should be looking for?