If you are purchasing GSA licenses for our GIA programs, please contact your Microsoft dealer or licensing manager for licensing/product use rights. Use more than one product or feature together. You need a license for each product and separate licensed features that are used on a device or by a user. For example, if you use Office on Windows, you`ll need licenses for Office and Windows. Similarly, to access remote stop services in Windows Server, you need both a Windows Server CAL and a remote de-enactor service. Volume licenses are not always transferable. For example, only a few types of Microsoft volume licenses can be transferred, provided that a formal transmission process allowing Microsoft to register the new owner is complete. A very small number of software providers specialize in intermediation of such transfers to enable the sale of volume and key licenses. The most remarkable of these, the discount license, pioneers of selling Microsoft volume licenses in this way.
 While Microsoft says that product activation benefits consumers by allowing Microsoft to produce better quality software, it has nevertheless received many criticisms for its design and implementation, its effectiveness in stopping piracy and respecting privacy rights. For example, during the development of Windows XP, betatesters strongly criticized the introduction of product activation, particularly because a change in computer hardware required reactivation.  Ken Fischer of Ars Technica wondered if activation would ultimately be effective in stopping piracy, and said that casual computer users would be concerned, but that it „would be a fool to think that someone out there wouldn`t find a way to break it all.”  Dave Wilson, a technology columnist for the Los Angeles Times, describes activation as „one more example of a brutal monopoly that abuses computer users who are powerless to do anything about it.” He also said the system would have „no significant impact on professional hackers.”  Fred Langa on InformationWeek said of the transfer of material information during activation that „many users are outraged at this level of surveillance, intrusion and control by Microsoft.”  Finally, Dr. Cyrus Peikari and Seth Fogie, security advisors, considered the activation of the product to be „hostile to privacy and human dignity.”  The verification data is also based on the product key entered during activation. In some cases, the product key is compared to a list of illegally known distributed keys.  When Windows is pre-installed on a computer by a first OEM, the operating system is automatically activated without the user needing access.  In this case, the copy of Windows installs does not use the product key on the certificate of authenticity, but a main product key that is distributed to OEMs called SLP (Locked Pre-Installation System). With each startup, Windows confirms the presence of specific information stored by the manufacturer in the BIOS and ensures that the activation is only valid on that computer, even if the product key is used on another computer.  If the activation is not performed within the extra time or fails due to an invalid or invalid product key, the following restrictions are imposed on the user: There is an unofficial KMS server emulator that activates Windows or Office, even if the software has not been authorized or paid for, whether or not 25 or more computers are on the network, regardless of whether an earlier version of Windows has been installed.
 There is also a program that sends KMS queries to a legitimate KMS server to make the server think there are 25 or more computers on the network.