ActiveXperts Network Monitor 2015 proactively manages network servers, devices, databases and more.

Microsoft Resource Kits - Windows 2003 Resource Kit

Srvmgr.exe  (Windows 2003 Resource Kit)

The Window Server 2003 Resource Kit is a set of tools that system administrators and engineers use to manage or support a Windows Server 2003 system. Use it to streamline management tasks such as troubleshooting operating system issues, managing Active Directory, configuring networking and security features, and automating application deployment.
Srvmgr.exe - Server Manager
Use this GUI-based tool to manage Microsoft® Windows NT® version 4.0 or Microsoft® Windows NT® version 3.51 domains and computers. To manage Windows 2000 domains and computers, use Active Directory™ directory service and the other Windows 2000 administrative tools instead.