If you're are having an issue running 2Moons on Windows Vista please try the following. Locacte the minilauncher.exe application in the install directory (default: "C:Program Files2Moons") and Right click on it From the Drop Down Menu select the Run As Administrator option Now return to the homepage and click the "Play" button. If the User Account Control (UAC) message appears enter the appropriate credentials if you are logged on as a standard user, and click the Submit button If you are the Administrator and UAC is not configured to always require credentials, just Click the Continue button and the application should start.