The IIS application pool restarts 3 times and then quits with an error similar to this:
Event Type: Warning Event Source: W3SVC Event Category: None Event ID: 1011 Date: 05.08.2008 Time: 18:02:29 User: N/A Computer: Description: A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the World Wide Web Publishing Service. The process id was '1296'. The data field contains the error number.
The ClearTrust agent was allocating heap incorrectly. This caused random memory to be overwritten.
This problem has been resolved in hotfix 4.8.0.07 for the 4.8 Agent for IIS 6.0. Contact RSA Customer Support and request this hotfix or the latest hotfix for this agent.
Upgraded to Windows 2003 SP2
Microsoft changed the way the C++ heap manager works in this service pack. This makes the effects of heap corruption more evident.
Note the same problem has been resolved in hotfix 184.108.40.206 for the 4.7 Agent for IIS 6.0 and the 220.127.116.11 for the 4.6 Agent for IIS 6.0