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

Microsoft Resource Kits - Windows 2003 Resource Kit

Clearmem.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.
Clearmem.exe - Clear Memory
Clear Memory (ClearMem) is a command-line tool that determines the size of the computer's physical memory, allocates enough data to fill it, and references the data as quickly as possible. ClearMem also accesses files to clear the cache. This reduces, to a minimum, the memory available to other processes. Then, the Clear Memory tool releases the allocated memory to restore normal system functions. Works on all versions of Windows starting with Windows 95.