[cpp] // Purpose:
// Disables the service.
//
// Parameters:
// None
//
// Return value:
// None
//
VOID __stdcall DoDisableSvc()
{
SC_HANDLE schSCManager;
SC_HANDLE schService;

// Get a handle to the SCM database.

schSCManager = OpenSCManager(
NULL, // local computer
NULL, // ServicesActive database
SC_MANAGER_ALL_ACCESS); // full access rights

if (NULL == schSCManager)
{
printf("OpenSCManager failed (%d)\n", GetLastError());
return;
}

// Get a handle to the service.

schService = OpenService(
schSCManager, // SCM database
szSvcName, // name of service
SERVICE_CHANGE_CONFIG); // need change config access

if (schService == NULL)
{
printf("OpenService failed (%d)\n", GetLastError());
CloseServiceHandle(schSCManager);
return;
}

// Change the service start type.

if (! ChangeServiceConfig(
schService, // handle of service
SERVICE_NO_CHANGE, // service type: no change
SERVICE_DISABLED, // service start type
SERVICE_NO_CHANGE, // error control: no change
NULL, // binary path: no change
NULL, // load order group: no change
NULL, // tag ID: no change
NULL, // dependencies: no change
NULL, // account name: no change
NULL, // password: no change
NULL) ) // display name: no change
{
printf("ChangeServiceConfig failed (%d)\n", GetLastError());
}
else printf("Service disabled successfully.\n");

CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
}

//
// Purpose:
// Enables the service.
//
// Parameters:
// None
//
// Return value:
// None
//
VOID __stdcall DoEnableSvc()
{
SC_HANDLE schSCManager;
SC_HANDLE schService;

// Get a handle to the SCM database.

schSCManager = OpenSCManager(
NULL, // local computer
NULL, // ServicesActive database
SC_MANAGER_ALL_ACCESS); // full access rights

if (NULL == schSCManager)
{
printf("OpenSCManager failed (%d)\n", GetLastError());
return;
}

// Get a handle to the service.

schService = OpenService(
schSCManager, // SCM database
szSvcName, // name of service
SERVICE_CHANGE_CONFIG); // need change config access

if (schService == NULL)
{
printf("OpenService failed (%d)\n", GetLastError());
CloseServiceHandle(schSCManager);
return;
}

// Change the service start type.

if (! ChangeServiceConfig(
schService, // handle of service
SERVICE_NO_CHANGE, // service type: no change
SERVICE_DEMAND_START, // service start type
SERVICE_NO_CHANGE, // error control: no change
NULL, // binary path: no change
NULL, // load order group: no change
NULL,