This article is OBSOLETE: We now use Tunngle to play CWC online.
What is Hamachi?
Hamachi is a so-called VPN (virtual private network). This means that it simulates a LAN (local area network) which allows players to start a game in network mode rather than internet mode. Usually this works better than playing at the official servers, meaning that the game will less likely lose synchronisation.
Where can I get it?
You can download a free version of Hamachi here.
What do I need to do to make it work?
After installing, you need to either create a new or join an existing network. You have to enter a network name and a password.
To be able to play CWC using Hamachi, you need to change the IP address Zero Hour uses. Start CWC and click "Options". Next to "LAN IP", select the address that is also displayed in your Hamachi window (5.xxx.xxx.xxx).
Attention: If you want to play in a real network again, you need to select your real ip.
After that you just click "Multiplayer", "Network" and you should be able to play with all other people in your Hamachi network.
Are there any risks?
Hamachi simulates a LAN, which means that anyone in the network will be able to do the same things he could do in a real network, for example connect to your PC and access shared folders. You should be aware of that when using Hamachi and protect your PC accordingly.
Is there some kind of official CWC network?
No, unfortunately there can only be 16 users of the free version in one network, so that would not make much sense.
However there's a thread that keeps track of people's Hamachi networks.
We turn into computers...a bit each day. - 9K32 Strela