I previously described the GUI for Managing service failures.
When you configure Service Recovery options, the configuration information is stored in up to three Value Names located at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<ServiceShortName> where <ServiceShortName> is the service's short name.
The Value Names are:
Value Name Data Type D e s c r i p t i o n FailureActions REG_BINARY Configuration information for 1st, 2nd, and subsequent failures. You can configure a service and use it as a model. FailureCommand REG_SZ Your program or script, if you configured Run a File. RebootMessage REG_SZ is the restart message, if you configured Reboot the Computer.