Microsoft Open License, Microsoft Open Value and Microsoft Open Value Subscription are Microsoft volume licensing agreements for organizations with 5-499 users/devices that want to license local Microsoft software, cloud services or both. Microsoft Enterprise Agreement and Microsoft Enterprise Subscription Agreement are engagement licensing agreements for commercial organizations that sign a new registration with 500 or more users/devices and government organizations with 250 or more users or devices. These agreements are best for organizations that want to license company-wide microsoft software and cloud services over a three-year period and at the best available prices. When licensing software, volume licensing is the practice of selling a license that authorizes the authorization of a computer program on a large number of computers or a large number of users. Customers of these licensing systems are generally commercial, government or educational institutions, with volume licensing prices varying depending on the nature, volume and duration of subscription. Microsoft software, available through volume licensing programs, includes, for example, Microsoft Windows and Microsoft Office.   Since its inception, Microsoft has been involved in volume licensing, as the business sector is its main market. With the release of Windows XP in 2001, Microsoft introduced the activation of Microsoft Product , a DRM (Digital Rights Management) system to limit consumer software piracy by verifying the user`s product license application. However, at the time, volume-licensed versions of Windows XP were excluded from this measure. (See . Starting with Windows Vista, Microsoft has implemented two volume licensing methods for IT experts responsible for installing Windows in organizations that are both covered by Microsoft product activation: the first is the Multiple Activation Key (MAC) which is identical to Windows XP volume licensing keys, but which require product activation.
The second key management server (SMS) and the corresponding keys. Hosts that are enabled via a KMS must connect to a software licensing server every 180 days.   Licenses using these schemes can be obtained through the Microsoft Software Assurance program. As of July 1, 2016, Microsoft will no longer accept new orders and software insurance renewals in markets where MPSA is available, thanks to existing Select Plus business agreements for the next anniversary of the customer`s contract. Microsoft Cloud Agreement (MCA) is a transaction licensing agreement for commercial and government organizations that want to outsource the management of their entire cloud services through a cloud solutions provider (CSP). Traditionally, a volume license key (RK) that could be made available to all instances of the licensed computer program participated in the granting of a volume license. With the popularity of the software as service practices, volume license customers only provide their software with credentials that are part of an online user account, which is used for other aspects of services and provision. Improving operational efficiency by accessing unique technologies and Microsoft Volume Licensing rights is a service offered by Microsoft to organizations that require multiple licenses, but not the software media, packaging and documentation provided with the Complete Packaged Product (FPP).
The benefits of granting a Microsoft volume license include lower installation prices, two- or three-year licensing agreements, and product usage rights. An example of product usage rights is copying the software for simultaneous use on multiple computers and devices. Since Microsoft Vista and later, VLKs have been replaced by several activation keys or key management server keys. Use these tools to download and manage your Microsoft volume licenses or to save and activate your product license keys.