I have been having problems with AOE II dropping out mid-play, so in an attempt to fix it I uninstalled AOE I, AOE II and AOE III using an advanced uninstaller. Although I was able to re-install AOE I and II, when I try and install AOE III from the installation disk I get an error message "This installation package could not be opened. verify that the package exists and that you can access it, or contact the application vendor to verify that this isa valid Windows Installer package   \Age of Empires III.msi".

If I can't install from the disk, could I download a trial or demo version and enter my product number?