I'm just wondering how you're supposed to run the mIRC scripts;
You can connect to the server in the actual mirc window,
If you look at the [0.3z] General Use Script, it connects to the server 5 seconds after you load the script. Which is linked to a DLL file.
About MTA-MA, afaik, this is a bunch of mIRC Dialog, which probably uses a DLL file to connect too.