I Noticed that Autosave usally takes up to 30 MB of new Memory each time, but only frees about 27-28 MB after saving.

Usally a Savegame on a Large Map wiich is fully populated takes up to 1.3 gig after Loading from a newly startet Game. So there isnt that much freedom for new memory usage anyway... (Maybe Using Large Address Space compiler option/Windows Flag would help at least those who have the ability to change there Windows start options (as long as Elemental is compiled this way, but it might take a consinderable hit on performance )