It could be many things but the most likely cause of this in my experience is that you are forgetting to release an ActiveX object or releasing an ActiveX object that was never instantiated (The latter is most likely).

If you check that all you DX ActiveX objects are Released when you shut the program down and make sure you are not releasing any that aren't created (check if they != null) before releasing them it may fix the problem.

Then again it may not and it may have noting to do with this.

Sometimes, quiet often, I get error on KERNEL32.DLL when I quit my d3drm program.
Anyone have similar experience? The error disappear when I reboote the computer, but
frequently it shows up again.

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Gandalf the White

Thanks STG !
It seems to have something to do with that!
I switched the release call and I have compiled the program 6 times, and... my computer does not crash anymore! Thanks, again.