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.
mnchandra2009Asked:
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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.
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twolCommented:
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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