This variable applies only on Windows and works in conjunction with the A_SYSLOG_ON_RUNTIME_ERROR configuration variable. Set A_SYS_HOSTNAME to the server name or IP address on which the event log is located. Do not include any slashes with the server name. The default value for this variable is empty. Then set A_SYSLOG_ON_RUNTIME_ERROR to 1 (on, true, yes). Shutdown messages will be sent to the event log on the local machine.