This is my collection of Windows Application Event ID from source Siteminder Agent, which is useful during troubleshooting when no webagent.log is generated.
Minimum working Event sequence is:
Event 9 : SiteMinder agent is enabled.
Event 24: Configuration file path: 'C:\Program Files\CA\webagent\win64\bin\IIS\WebAgent.conf'.
or 'C:\Program Files\CA\webagent\win32\bin\IIS\WebAgent.conf'.
depending on your ACO configuration.
Event 12: SiteMinder agent is running.
When problem happens, you will see:
(info) Event 36: Registry Entry requestpriority value: '0 (FIRST)'.
(warning) Event 7 : SiteMinder agent has encountered initialization errors and will not service requests.
(error) Event 14: Sm_AgentApi_Init Failed.
(error) Event 3 : Unable to load SiteMinder host configuration object or host configuration file.
C:\Program Files\CA\webagent\win64\config\SmHost.conf
(warning) Event 33: Siteminder Web Agent not having write permissions on host configuration file. Shared secret roll-over may not be supported.
Permission denied. Please assign write privileges to the user DefaultAppPool for the file C:\Program Files\CA\webagent\win64\config\SmHost.conf