KMS or MAK activation. With a volume licence, client's don't need to activate with Microsoft through the internet. For larger organisations, that would cause too much internet traffic. Instead, you use a local activation service within your network. You can either deploy a KMS (Key Management Service) or use the Volume Actication Management. There are 2 types of keys for Volume Licensing of Windows - KMS & MAK Keys. They both can be used to activate Windows in bulk, but serve different requirements of the Enterprise. KMS keys are no longer pre-assigned to Open agreements as use of MAK (Multiple Activation Key) keys is the preferred method for activation. If you are an Open Customer and need a KMS key, please request one by either calling VL Support.
Mak And Kms Difference
From: http://www.microsoft.com/licensing/existing-customers/product-activation-faq.aspx
'What is the Key Management Service (KMS)?
The Key Management Service (KMS) is an activation service that allows organizations to activate systems within their own network, eliminating the need for individual computers to connect to Microsoft for product activation. Wii usb loader 4.3 download. It does not require a dedicated system and can be easily co-hosted on a system that provides other services.
KMS requires a minimum number of either physical or virtual computers in a network environment. These minimums, called activation thresholds, are set so that they are easily met by Enterprise customers.
What is a Multiple Activation Key (MAK) and how does it work?
A Multiple Activation Key (MAK) requires computers to connect one time to a Microsoft activation server. Once computers are activated, no further communication with Microsoft is required. There are two activation methods for MAK:
Windows’ recent operating systems, particularly Windows Vista, Windows Server 2008, 2008 R2, Windows 7, and Office 2010 use an activation technology called Volume Activation, which allows for activation automation that is transparent both to Volume Licensing customers and end users.
MAK Independent Activation: Each computer individually connects to Microsoft via the web or telephone to complete activation.
Microsoft Kms Vs Mak Keys
MAK Proxy Activation: This method uses the Volume Activation Management Tool (VAMT). One centralized activation request is made on behalf of multiple computers with one connection to Microsoft online or by telephone. Note: VAMT enables IT professionals to automate and centrally manage the volume activation process using a MAK.
Each MAK has a predetermined number of allowed activations, based on your Volume Licensing agreement. '