Changing NT and Win2K Keymaps through the Registry

1. Run Start->Run...
2. Open: regedt32 to edit the registry.
3. Select the key

        HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Keyboard Layout
        

4. From the Edit menu, choose "Add Value" to add a value named "Scancode Map" with type REG_BINARY.
5. Set the value for the layout you want (copy and paste the bold text below):
   • Map CapsLock -> Left Ctrl:
     0000000000000000020000001d003a0000000000
   • Swap CapsLock and Left Ctrl:
     0000000000000000030000001d003a003a001d0000000000
   • CapsLock->Left Ctrl, Left Ctrl->Left Alt, Left Alt->CapsLock:
     0000000000000000040000001d003a0038001d003a00380000000000
6. Reboot your machine

How the registry setting works