C# .NET: Get the logged on user on Windows 7 using WMI query

Use following code snippet to get the logged on user on Windows 7 using WMI query.

If multiple users logged in then it returns all usernames.

  var searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT username FROM Win32_ComputerSystem");

  foreach (ManagementObject queryObj in searcher.Get())
  {
          Console.WriteLine("UserName: {0}", queryObj["username"].ToString());
  }