Administering an ISP Installation

Recovering from Crashes

Even after rigorous testing, it’s still possible that, at one time or another, an application will fail when it’s run on a production Web server. To handle crashes and still protect data, IIS 5.0 offers two convenient ways of recovering when the Component Services environment hosts applications (ISAPI and ASP applications running out of process, for example):

If a fatal application error occurs, the process is terminated automatically.
If a transactional application crashes, all transactions in progress are stopped and any changes to the data are rolled back.
The Windows® Event Log stores a record of the error that occurred, and the run-time Component Services environment automatically restarts the application process. In this way data is protected and the application can be rerun.