http://www.microsoft.com/downloads/details.aspx?FamilyID=09115420-8c9d-46b9-a9a5-9bffcd237da2&displaylang=en
Microsoft Windows Server 2003 Performance Advisor provides several specialized reports, including a System Overview (focusing on CPU usage, Memory usage, busy files, busy TCP clients, top CPU consumers) and reports for server roles such as Active Directory, Internet Information System (IIS), DNS, Terminal Services, SQL, print spooler, and others.