Hi all,
where can I find the system event log of a web server ?

I have this message:

Server Application Unavailable
The web application you are attempting to access on this web server is currently unavailable. Please hit the "Refresh" button in your web browser to retry your request.

Administrator Note: An error message detailing the cause of this specific request failure can be found in the system event log of the web server. Please review this log entry to discover what caused this error to occur.

I have searched but nothing!

Any ideas?

Thanks for you time