R@1n Act1vat0r (AKA: Rain Activator) is a Windows, Office & Visual Studio all versions universal activator based on KMS activation method, made by R@1n. Unlike R@1n's Re-Loader Activator, R@1n Act1vat0r comes with the classic and clean DOS UI.

MSAct++ (AKA: MSAct Plus Plus; its has two predecessors: MSAct and MSAct+, AKA: MSAct Plus) is a tiny app designed to help activate Microsoft Windows (7~10) and Office (2010~2019) by phone, via activation keys and KMS activation method, developed by Ratiborus from Russia. Unlike MSAct and MSAct+, MSAct++ has the ability to create key groups for different Microsoft products.

KMSAuto Helper is a relatively new, offline KMS-based activation tool for Microsoft products, written by Ratiborus from Russia. It uses the working mode of virtual machine, truly achieves the purpose of local KMS (Key Management Service, Volume Licensing) activation, and supports both LAN and Internet activation. To a great extent, it has been regarded as a super convenient and effective Windows 10 activator by a lot of users around the world.

KMSAuto Easy is one of the easiest, fastest and most effective Microsoft Windows & Office offline activating tools. It's completely safe and working all right all the time! It was coded by Ratiborus from Russia in 2013, based on the CCM Server from mikmk38.