Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:UsersAdministrator>tasklist /svc|find "W3SVC"
svchost.exe                   1456 W3SVC, WAS

C:UsersAdministrator>taskkill /PID 1456 /F
SUCCESS: The process with PID 1456 has been terminated.

C:UsersAdministrator>tasklist /svc|find "W3SVC"
svchost.exe                   1456 W3SVC, WAS

C:UsersAdministrator>taskkill /PID 1456 /F
ERROR: The process with PID 1456 could not be terminated.
Reason: There is no running instance of the task.

C:UsersAdministrator>tasklist /svc|find "W3SVC"
svchost.exe                   1456 W3SVC, WAS

C:UsersAdministrator>