Near as I can tell, that is some sort of internal SlimDX issue. Those classes and references mentioned are not something that AI War even has direct access to, that I know of. I'd update to a later version of SlimDX, but then all existing customers would have to reinstall the new versions (which is a pain), so I'm inclined to let this one slide. The cause of it seems to be really huge games when the application is using a lot of memory, and it only happens on exit. Not sure what is up with that.