Event ID - 1002

Event Id1002
DescriptionApplication pool "DefaultAppPool" is being automatically disabled due to a series of failures in the process(es) serving that application pool.
Event InformationAccording to a news group post , when he tried to move default web root from current drive to another drive, this problem starts by giving several event message from the above source including above event id. This problem turned out from group policy. They where set a group policy "Logon As A Service" right to Admin Users only. Science network Service is not including in it, it was failing. He finally moved server to and OU with an overriding GPO every thing started to work fine. The following document can help you to check default permissions.
Reference Links Default Permissions and User Rights for IIS 6.0

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