http://mywippienservers.webs.com/
Wippien is a VPN emulator similar to Hamachi but there is no limit how many people connect to your LAN. IMO its way better then hamachi, but unrated due to late start.
Wippien is better then Hamachi aslong as your pretty good with setting up VPNs.
1.Wippien allows you to connect directed to unlimited players .
And 255 people with Wippien Group Chat.
2.Wippien dosent require 3rd party server to connect and stay online and relay information.
Like Hamachi mediator server.
3.Wippien has client chat search, so you connect to a larger number of players. Just search for the room you would like to join or find someone thats hosting a private room"requires pass".
4.Wippien is customizable.
You may download new skins and install them to give your wippien client a brand new look. Wippien also allows you to upload a avator for group chat, and once you upload your picture or skin its part of the data base forever.
5.Wippien gets better connection in the long run.Unlike hamachi, Wippien is free so you dont have to pay anything to get the best connect outta your VPN.
Wippien gets lower ping results in most games.
6.Wippien setups and configures just like you would hamachi. So nothing new if your already used to hamachi.
7.Wippien auto kicks offliners from your server" not that its really needed with unlimited servers

but i wish hamachi had that.
http://mywippienservers.webs.com/
After you setup wippien join my chat room made for Call of Duty 4.
Add the contact below or join the chat room using the chat search menu.
callofduty@conference.wippien.com
Once you join you'll be able to talk and connect to other people and maybe start a group.
At this point the only way to connect to someone is to add them manuelly, thats why i made the chat rooms.
Before starting, patch your game to latest verison. Then apply the private server, no wait patch.
Basically its a fixed exe that fixs anti ping through LAN, without this patch you cannot play in LAN match with over 30 ping.
The newest private server no wait patch for call of duty for can be found at.
www.gamecopyworld.com
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Before Starting a Game May Require to use these steps
This needs to be done for every player in the game.
1. Log on to Wippien
2. Disable your primary network, not your hamachi...keep that running.
3. Launch Call of Duty 4 MP.exe and go to LAN games.
4. Alt+Tab out and re-enable your primary network.
5. Connect to Wippien.
6. Alt+Tab back into the game, and you should be able to see available games.
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If you cant see the server, ether your wippien ip isnt being used ingame or the person you are trying to connect to.
Other problems may invole firewalls or routers, for Gaming over wippien its best to turn of all firewalls and stay off of routers or wireless connections if you can.
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Lastly you may directly add the wippien host ip to your favorites ingame to help with connecting.
Simply change your internet filter to "LAN"
This is known to be the best way to connect.