I was looking to do some modifications to authui.dll but it seems that the contents of the file has been stripped down severely. It's now about 90% smaller than it was a couple of versions ago and doesn't contain anything much useful. That information has obviously gone somewhere and I'm hoping someone knows the new location.

I'm looking to remove the ease of access button from the lock screen if that's of any interest.

Currently using 20H2. Thanks in advance!