I recently had a person trying IISLogs and wanted to have some custom rules. I realized no articles were written how to handle this situation. IISLogs was really designed to handle most log process situations. This is just one example. Enjoy!
http://www.iislogs.com/articles/CustomIISLogsRules/
Enjoy,
Steve Schofield
Microsoft MVP – IISLogs
Pondering Thought 