Q. Are there any updates required for Windows Server 2008, Windows Vista, or Windows Server 2003 to act as key management servers for Windows 7 or Windows Server 2008 R2?

A. An update is available for Server 2008 and Vista machines that allows these OSs to act as KMSs for Windows 7 and Server 2008 R2. An update for Windows 2003 is also available.

Once you apply the update, your system will reboot. The new Windows 7 or Server 2008 R2 key is supplied using the command

slmgr.vbs /ipk 

Related Reading:

• Q. Is it true the Key Management Service (KMS) in Windows 7 and Windows Server 2008 R2 will include virtual machines in the count of the minimum number of licenses required before KMS will start activating machines?
• Q. Is there anything special I need to do for my Windows Server 2003 Key Management Server (KMS) to support Windows 7 and Windows Server 2008 R2?
• Volume Activation in Server 2008
• Control Your Licensing with Slmgr

Check out hundreds more useful Q&As like this in John Savill's FAQ for Windows. Also, watch instructional videos made by John at ITTV.net.