It's doesn't point to a specific server, that's where the differences end. An NZB is a specific location of a file. Yes, the newsreader has to read the message id and download the file. Similarily, the web browser has to resolve the domain and request the specific file. The newsreader decodes the download into a useable file, just like the user decodes a rar or a zip to get a useable file.
There's nothing "special" about usenet and nzb's. In the end it's binary data transfered over tcp/ip.
Bookmarks