It sets up a virtual KMS server on the local machine.
: Activations may fail after future Windows or Office updates, requiring users to repeat the process frequently. Office 2010 Toolkit & EZ-Activator Guide | PDF - Scribd microsoft toolkit ez activator 23 2 office 2013
The toolkit is designed to provide "lifetime" activation by automating the background licensing process. It sets up a virtual KMS server on the local machine
Most “EZ Activator” downloads contain real malware beyond the activator itself: While Microsoft does not typically pursue individual users
It offered a stable method for activating Office 2013 Professional Plus and other volume editions.
Using the toolkit is a violation of Microsoft's software license agreement. This means it is illegal, regardless of the user's intent or location. While Microsoft does not typically pursue individual users in court, the act is still piracy. It denies the developer fair payment for its product and carries the potential for legal liability.