I haven't tried CrEmE, since the onboard Chai VM, while far from the greatest Java VM, has been satisfactory to meet my minimal Java needs
(actually, just wants really
) - so I'm not aware offhand what it needs in the way of DLLs. But you can check it with Executability Check on the 728. Executability Check can be downloaded here:
http://www.geocities.co.jp/SiliconValley-Cupertino/2039/