UACController is a technology and security infrastructure introduced with Microsoft's Windows VistaÂ® operating system. It aims to improve the security of Microsoft WindowsÂ® by limiting application software to standard user privileges until an administrator authorizes an increase in privilege level. In this way, only applications that the user trusts receive higher privileges and malware should be kept from receiving the privileges necessary to compromise the operating system. In other words, a user account may have administrator privileges assigned to it, but applications that the user runs do not also have those privileges unless they are approved beforehand or the user explicitly authorizes it to have higher privileges. With UACController you are able to Enable, Disable or put UAC in quiet mode and you are also able to Enable or Disable the system tray notification.