Windows 7 login keyboard layout

I have to use Windows for some work related stuff (no worries, just a VM) and I got really annoyed with having to type in my password using the US keyboard.
So I did a Google search and found-out how to change it.
Just in case I forget - or somebody else finds this on their search:
Edit the RegKey HKEY_USERS\.DEFAULT\Keyboard Layout\Preload and change it to the appropriate value.
The original post that gave me this info didn't contain all the keycodes.
So the keycode for Estonian layout is 00000438, which I found here.