AX 2009 64-bit AOS instance memory usage

I have seen some people asking if the 64-bit "edition" of the AOS kernel is capable of utilizing memory above 2 Gb (search microsoft.public.axapta which by the way is or is going to be retired). The snapshot below is taken from a customer site.

Working Set equal to 2 Gb and Peak Working Set equal to 4,1 Gb - say no more.