Yes it's the same kind of unlocker, now probably Unlocker Alternative can do the job for MS and img too and it contains gimgunlock, one tool for all .
Or the newer is
[Only registered and activated users can see links. ]
from our friend marcoq, it can unlock quite all: pois , imgs , families and gmap folders. He's still developing it. I guess at the end it will be the best :one for all Try it!