Macaos Enterprise uses an automatic updating mechanism so that you always have the latest version available. After downloading the updated version, Macaos Enterprise runs a small installer program to replace and restart itself. Newer operating systems (Windows Vista, Windows 7 and later) may ask if you wish to allow this installer program to run. The installer program is called Web Updater from tmssoftware.com bvba. You can safely allow this updater to make system changes when updating Macaos Enterprise.