Service Name	Executable Name
Alerter	Services.exe
ClipBook Server	ClipSrv.exe
Computer Browser	Services.exe
DHCP Client	Services.exe
Directory Replicator	Lmrepl.exe
Event Log	Services.exe
Messenger	Services.exe
Net Logon	Lsass.exe
Network DDE	Netdde.exe
Network DDE DSDM	Netdde.exe
NT LM Security Support Provider	Services.exe
Plug and Play	Services.exe
Remote Access Autodial Manager	RASMAN.exe
Remote Access Connection Manager	RASMAN.exe
Remote Access Server	Rassrv.exe
RPC Locator	Locator.exe
RPC Service	RpcSs.exe
Schedule	Atsvc.exe
Server	Services.exe
Spooler	Spoolss.exe
TCP/IP NetBIOS Helper	Services.exe
Telephony Service	TAPISrv.exe
UPS	Ups.exe
Workstation	Services.exe

Figure 4   SC.EXE Usage Syntax

 DESCRIPTION:
         SC is a command line program used for communicating with the
         NT Service Controller and services.
 
 USAGE:
         sc <server> [command] [service name] <option1> <option2>...
 
         The option <server> has the form \\ServerName
         Further help on commands can be obtained by typing: "sc [command]"
         Commands:
           query-----------Queries the status for a service, or
                           enumerates the status for types of services.
           start-----------Starts a service.
           pause-----------Sends a PAUSE control request to a service.
           interrogate-----Sends an INTERROGATE control request to a service.
           continue--------Sends a CONTINUE control request to a service.
           stop------------Sends a STOP request to a service.
           config----------Changes the configuration of a service (persistant).
           qc--------------Queries the configuration information for a service.
           delete----------Deletes a service (from the registry).
           create----------Creates a service. (adds it to the registry).
           control---------Sends a control to a service.
           GetDisplayName--Gets the DisplayName for a service.
           GetKeyName------Gets the ServiceKeyName for a service.
           EnumDepend------Enumerates Service Dependencies.
 
         The following commands don't require a service name:
         sc <server> <command> <option>
           boot------------(ok | bad) Indicates whether the last boot should
                           be saved as the last-known-good boot configuration
           Lock------------Locks the Service Database
           QueryLock-------Queries the LockStatus for the SCManager Database
 
 EXAMPLE:
         sc start MyService

Figure 6   StartServiceCtrlDispatcher Loop

 // Don't count the NULL entry
 int nNumRunningServices = NumElementsInServiceStartTable - 1;
 while (nNumRunningServices > 0) {
    WaitForAServiceControlCodeOrAServiceThreadToTerminate();
    if (AServiceControlCode) {
       RemoveServiceControlCodeFromQueue()
       CallServiceHandler(fdwControlCode);
    } else {
       nNumRunningServices--;
    }
 }
 return(TRUE);   // StartServiceCtrlDispatcher returns to WinMain/main

Figure 7   SC.EXE Usage Syntax

Control Notification Code	Meaning
SERVICE_CONTROL_STOP	Requests the service to stop.
SERVICE_CONTROL_PAUSE	Requests the service to pause.
SERVICE_CONTROL_CONTINUE	Requests the paused service to resume.
SERVICE_CONTROL_INTERROGATE	Requests the service to immediately update its current status information to the SCM. All services must respond to this control code.
SERVICE_CONTROL_SHUTDOWN	Requests the service to perform cleanup tasks because the system is shutting down.