How do I create a registry entry for a video game.Because I saw video games that do not required installation,you only have to click on a thing with a registry icon and it added a registry entry.I want to do this to World of Warcraft,because I want to reinstall Windows and don't want to install Warcraft again,because it's a big game.I want to create a registry entry,and then use it when I have reinstalled Windows so that I have World of Warcraft "installed".How can I do this?How can I make that registry entry and use it later.