Change your Half-Life and Counter-Strike cd-key easily.

Half-Life CD Key Changer is a small program which allow you to easily manage multiple cdkeys without having to access the registry. This is convenient when you have been banned from a certain server or want your statistics under a different player name. Now supports Half-Life Counter-Strike retail! This is not a key generator, but simply a way to change your product key. It is useful, for example, for someone who owns multiple copies of the game.