BOOL ChangeServiceConfig2A(
[in] SC_HANDLE hService,
[in] DWORD dwInfoLevel,
[in, optional] LPVOID lpInfo
Parameters
[in] hService
A handle to the service. This handle is returned by the
OpenService or
CreateService function and must have the SERVICE_CHANGE_CONFIG access right. For more information, see
Service Security and Access Rights.
If the service controller handles the SC_ACTION_RESTART action, hService must have the SERVICE_START access right.
[in] dwInfoLevel
The configuration information to be changed. This parameter can be one of the following values.
Value
Meaning
SERVICE_CONFIG_DELAYED_AUTO_START_INFO
The lpInfo parameter is a pointer to a SERVICE_DELAYED_AUTO_START_INFO structure.
Windows Server 2003 and Windows XP: This value is not supported.
The lpInfo parameter is a pointer to a
SERVICE_FAILURE_ACTIONS structure.
If the service controller handles the SC_ACTION_REBOOT action, the caller must have the SE_SHUTDOWN_NAME privilege. For more information, see
Running with Special Privileges.
The lpInfo parameter is a pointer to a SERVICE_TRIGGER_INFO structure. This value is not supported by the ANSI version of ChangeServiceConfig2.
Windows Server 2008, Windows Vista, Windows Server 2003 and Windows XP: This value is not supported until Windows Server 2008 R2.
[in, optional] lpInfo
A pointer to the new value to be set for the configuration information. The format of this data depends on the value of the dwInfoLevel parameter. If this value is NULL, the information remains unchanged.
Return value
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call
GetLastError.
ChangeServiceConfig2 function changes the optional configuration information for the specified service in the service control manager database. You can obtain the current optional configuration information by using the
QueryServiceConfig2 function.
You cannot set the SERVICE_CONFIG_FAILURE_ACTIONS value for a service that shares the service control manager's process. This includes all services whose executable image is "Services.exe".
You can change and query additional configuration information using the
ChangeServiceConfig and
QueryServiceConfig functions, respectively.
If a service is configured to restart after it finishes with an error, the service control manager queues the restart action to occur after the specified time delay. A queued restart action cannot be canceled. If the service is manually restarted and then stopped before the queued restart action occurs, the service will restart unexpectedly when the time delay elapses. The service must be explicitly disabled to prevent it from restarting.
The SERVICE_CONFIG_LAUNCH_PROTECTED value can be used to launch the service as protected. In order to launch the service as protected, the service must be signed with a special certificate.
SERVICE_CONFIG_LAUNCH_PROTECTED example:
SERVICE_LAUNCH_PROTECTED_INFO Info;
SC_HANDLE hService;
Info.dwLaunchProtected = SERVICE_LAUNCH_PROTECTED_ANTIMALWARE_LIGHT;
hService = CreateService (...);
if (ChangeServiceConfig2(hService,
SERVICE_CONFIG_LAUNCH_PROTECTED,
&Info) == FALSE)
Result = GetLastError();
Examples
For an example, see
Changing a Service's Configuration.
The winsvc.h header defines ChangeServiceConfig2 as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Requirements
