Delete files before closing game?

This may be a stupid question - is it necessary to delete all of your graphics, objects and sounds manually when you close your game down or does Blitz clear all it's memory usage automatically?

I've tried both ways - using FreeImage to clear my artwork or just letting Blitz do it and I've seen no adverse effects or performance issues, even if I open and close the game a few times in a row. But then my games are small 2D affairs. Does anyone know what the best method of clearing out memory on larger projects is? I don't see a Flush Video Memory style command anywhere.

As far as I know, a simple "End" will release all Resources, as much as it is possible. Windows and DirectX might have internal segmentation problems, but this isn't a big deal and couldn't be prevented by manual release. I never had any troubles with a simple "End".

Cool, thanks for the help :)