WMIC

Use the Windows Management Instrumentation Control to manage (locally or remotely) many aspects of a Windows machine, s.a. processes, services, startup Registry keys and folders and numerous other items.

Processes

Execute a command:

wmic process call create [command]

List processes:

wmic process list brief

Kill a process:

wmic process where processid="[PID]" delete
wmic process where name="[name]" delete

Note the [name] is typically the name of its executable, including the .exe suffix.