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Hi, Sorry this post is a copy of this one but i've got no answer :-( I would like to use ChangeServiceConfig2 function to set recovery properties of a Windows service but it doesn't work. https://msdn.microsoft.com/en-us/library/windows/desktop/ms681988(v=vs.85).aspx I'm using _Service_UDF v4 library. Here is my code : Func _ChangeServiceConfig2($sServiceName, $sComputerName = "") Local $hSC, $hService, $rdll $hSC = OpenSCManager($sComputerName, $SC_MANAGER_CONNECT) $hService = OpenService($hSC, $sServiceName, $SERVICE_CHANGE_CONFIG) ;~ typedef struct _SERVICE_FAILURE_ACTIONS { ;~ DWORD dwResetPeriod; ;~ LPTSTR lpRebootMsg; ;~ LPTSTR lpCommand; ;~ DWORD cActions; ;~ SC_ACTION *lpsaActions; ;~ } SERVICE_FAILURE_ACTIONS, *LPSERVICE_FAILURE_ACTIONS; ;~ typedef struct _SC_ACTION { ;~ SC_ACTION_TYPE Type; ;~ DWORD Delay; ;~ } SC_ACTION, *LPSC_ACTION; Local $SC_ACTION_NONE = 0 Local $SC_ACTION_REBOOT = 2 Local $SC_ACTION_RESTART = 1 Local $SC_ACTION_RUN_COMMAND = 3 Local $SERVICE_CONFIG_FAILURE_ACTIONS = 2 Local $sc_action = DllStructCreate("int Type; DWORD Delay") DllStructSetData($sc_action, "Type", $SC_ACTION_RESTART) DllStructSetData($sc_action, "Delay", 1000) Local Const $sTagSC_ACTION = "int;dword" Local $iNumberOfArrayElement = 1 Local $tArraySC_ACTION = DllStructCreate($sTagSC_ACTION) DllStructSetData($tArraySC_ACTION, 1, $SC_ACTION_RESTART) DllStructSetData($tArraySC_ACTION, 2, 10000) Local $PtrSC_ACTION_Array = DllStructGetPtr($tArraySC_ACTION) Local $serviceFailureActions = DllStructCreate("DWORD dwResetPeriod;ptr lpRebootMsg;ptr lpCommand;DWORD cActions;ptr lpsaActions") DllStructSetData($serviceFailureActions, "dwResetPeriod", "INFINITE") Local $lpRebootMsg = DllStructCreate("wstr") DllStructSetData($lpRebootMsg, 1, "") DllStructSetData($serviceFailureActions, "lpRebootMsg", DllStructGetPtr($lpRebootMsg)) DllStructSetData($serviceFailureActions, "lpCommand", Null) DllStructSetData($serviceFailureActions, "cActions", $iNumberOfArrayElement) DllStructSetData($serviceFailureActions, "lpsaActions", $PtrSC_ACTION_Array) Local $dwInfoLevel = $SERVICE_CONFIG_FAILURE_ACTIONS Local $lpInfo = DllStructGetPtr($serviceFailureActions) $rdll = DllCall($hAdvapi32_DLL, "BOOLEAN", "ChangeServiceConfig2", _ "HANDLE", $hService, _ "DWORD", $dwInfoLevel, _ "ptr", $lpInfo) ; pointeur vers la structure SERVICE_FAILURE_ACTIONS CloseServiceHandle($hService) CloseServiceHandle($hSC) If @error Then Return 0 Else Return $rdll[0] EndIf EndFunc I suppose my problem coming from the "lpsaActions" variable. It should be a pointer to array of Service_Failure_Actions structures. Any idea ? Thanks and sorry for the double post. P.S : I know I can use some SC command but I would prefer Windows internal function.