I know that no such DLL exists, I was merely asking if a DLL COULD do this. Whether or not mIRC allowed a DLL to have this much functionality.
And sure, why not say "Hey, download this DLL"? Many people download scripts with less prompting.
Sure, there's Netmeeting, but it's slow, buggy (as you said), will never be updated again by Micro$oft and only allows you to video chat with a single person at once.
I don't think it's anywhere near the best program of its kind though. There are plenty of others out there. Netmeeting might be the best for some people, but it all depends on what you're trying to do, what you're willing to put up with, and what bugs affect your system the least