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I would like to run another program when a service crashes. I know that I should use SERVICE_FAILURE_ACTIONS and ChangeServiceConfig2() provided by Microsoft. But, I got stuck using them because I can not find any example of using these structure and function.

I would appreciate it if anyone can show me an example to implement this.

Remy Lebeau
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Ehsan Sharifi Esfahani
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1 Answers1

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It's not so hard. You need something like this:

SC_ACTION sc_actions = { SC_ACTION_RUN_COMMAND, 0 };
TCHAR command [] = __T ("path/to/command");
SERVICE_FAILURE_ACTIONS failure_actions =
    { INFINITE, NULL, command, 1, &sc_actions);
BOOL ok = ChangeServiceConfig2 (service_handle,
    SERVICE_CONFIG_FAILURE_ACTIONS, &failure_actions);

Where, as the documentation states, service_handle is obtained by a call to OpenService.

Paul Sanders
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  • casting away `const` seems like a bad idea. [Some Windows APIs actually do overwrite their input parameters](https://stackoverflow.com/q/11339186/103167) so passing string literals to arguments not declared `LPC(T|W)STR` is not advisable. – Ben Voigt Jul 29 '20 at 16:17
  • @BenVoigt Quite right, what _was_ I thinking? Edited, thank you. – Paul Sanders Mar 02 '22 at 12:15