in Event Viewer,
The World Wide Web Publishing Service service terminated unexpectedly. It has done this xx time(s). The following corrective action will be taken in 0 milliseconds: No action.
The Simple Mail Transport Protocol (SMTP) service terminated unexpectedly. It has done this xxtime(s). The following corrective action will be taken in 0 milliseconds: No action.
The IIS Admin Service service terminated unexpectedly. It has done this xx time(s). The following corrective action will be taken in 1 milliseconds: Run the configured recovery program.
....
no other error or warning message~~~
The World Wide Web Publishing Service service terminated unexpectedly. It has done this xx time(s). The following corrective action will be taken in 0 milliseconds: No action.
The Simple Mail Transport Protocol (SMTP) service terminated unexpectedly. It has done this xxtime(s). The following corrective action will be taken in 0 milliseconds: No action.
The IIS Admin Service service terminated unexpectedly. It has done this xx time(s). The following corrective action will be taken in 1 milliseconds: Run the configured recovery program.
....
no other error or warning message~~~