Netherwing is a TBC Private Server delivered by Stormforge. It is one of the most popular servers for this expansion and is liked by many players.
The server authors are a combination of the famous project - Tauri, and Atlantiss. They have teamed up and created the realm Netherwing.
It is known for its high quality, well-scripted content, and high playerbase. In general, it's a very liked server that's definitely worth trying out if you're into TBC!
The realm (Netherwing) by Stormforge is running on patch 2.4.3, and you can download a TBC client from this link.
Happy gaming.