Hackers have reverse-engineered KMS to create fake activation emulators. The "2038" refers to a distant expiration date (Year 2038) to trick users into believing the activation is permanent. These suites are often bundled with "Digital Online Activation" promises.
This is a third-party hacking tool used to bypass Microsoft's licensing process for Windows and Office. It works by emulating a Key Management Service (KMS) server on your machine to trick the software into thinking it is legitimately activated.
Always add a strong password to your zip archive before uploading it to a transfer service.