IIS application pool crashes

event log events

Application pool 'DefaultAppPool' is being automatically disabled due to a series of failures in the process(es) serving that application pool.

A process serving application pool 'DefaultAppPool' terminated unexpectedly. The process id was '4072'. The process exit code was '0xc0000005'.

A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the World Wide Web Publishing Service. The process id was '5352'. The data field contains the error number.
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RovastarConnect With a Mentor Commented:
Basically your code has caused some error in an app/website and caused the whole application pool to error.

First step as twol says is to isolate the application to a unique pool.

Then look at the IIS logs of that site for any 500 errors or long running requests.
If you have an idea of which application is causing this problem, you can go into IIS and set that application up in a different pool. You can also force the pool to restart itself.
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