Glossary of terms used on this site
WAITFOR.exe (2003 Resource Kit, standard in Windows 7/2008)
Wait for or send a signal. Waitfor is used to synchronize events between one or more networked computers.
WEVTUTIL (Vista and above)
Retrieve information about event logs and publishers. Archive logs in a self-contained format, Enumerate the available logs, Install and uninstall event manifests, run queries, Exports events (from an event log, from a log file, or using a structured query) to a specified file,Clear event logs.
Windows Remote Management
Windows Remote Shell
Windows Update Agent, download new Windows Update files.