 Windows 2000 also replaced NT4's Event Viewer with a Microsoft Management Console (MMC) snap-in.Windows Server 2003 added the codice_1 API calls so that applications could register with the security-event logs, and write security-audit entries.Versions of Windows based on the Windows NT 6.0 kernel (Windows Vista and Windows Server 2008) no longer have a 300-megabyte limit to their total size.