The command to use is sc. First you need to know that every service has a display name and a service name. I banged my head into the wall until I realized that I could just type sc query to list all. Actually I typed sc query >> result.txt
Then I found the real name of the IBM HTTP Server 6.1-service and I could type
D:\HTTPServer61\bin>sc query IBMHTTPServer6.1
SERVICE_NAME: IBMHTTPServer6.1
TYPE : 10 WIN32_OWN_PROCESS
STATE : 4 RUNNING
(STOPPABLE, NOT_PAUSABLE, IGNORES_SHUTDOWN))
WIN32_EXIT_CODE : 0 (0x0)
SERVICE_EXIT_CODE : 0 (0x0)
CHECKPOINT : 0x0
WAIT_HINT : 0x0
