When you close mIRC, does it close all the hash tables and .dlls? Or do those stay loaded?

I close hash tables when I don't need them anymore, but some hash tables I always need as long as mIRC's open. I'm not using any .dlls, but I'm planning to use spaces.dll, which will be used so often that closing it while mIRC is running is pointless.

But should I make sure to close all hash tables and dlls on exit, or will mIRC do that?

Learning something new every day.