Kupluk, maybe a better question to ask is WHY you want to place a swf in a dll? What are you hoping to accomplish?
Also, don’t bash yourself too hard: everybody here had to start at the beginning, learning AS. Sure, some catch on quicker than others (I’m a slower one, for sure) but it’s a matter of patience and practice. It could be that what you’re trying to do is out of your reach right now, but as you learn Flash and AS, you’ll grasp it in time. 