Remaps "whole keys" to other keys using technology that's built into Windows Exposes a Registry Key that Windows uses to remap keys without any overhead Offers a simple UI that keeps track of the keys you've remapped Application can be uninstalled if you're satisfied with your remapped keys Support starts with Windows 2000 through Windows 11

3.9.4 is the most recent stable release that fixes a crash coming back from a minimized state and removed the last entry to AltGr.