WiF 5 with Vassal
Vassal is a Java-based program that allows you to play World in Flames online with your friends. To use that, you need a minimum of 2 things the Vassal Game Engine and the Gamebox, plus optionally a saved game for starting new games (the latter will save you countless hours of force pool creation and fleet setup).
Vassal Game Engine
Vassal Game Engine
Vassal game engine is here : http://vassalengine.org/.
Vassal WiF 5 Gamebox
Vassal WiF 5 Gamebox
Craig Walters' WiF 5 gamebox is available here.