CCF 2008 install several WCF Services which have various purposes. For instance, there is Microsoft.Ccf.Common.Logging.Providers.WebService responsible for logging error, warnings or information into file, event log or database. MSFT provides API for logging into a file and an event log but not into SQL Server, which I fin very odd. You would think that SQL would be your first choice, since you can run reports on top of it. I think MSFT needs to publish it as a patch. In any case, if you need one you need to create your own class those implements ILogging interface. You can disassemble one of their logging classes to see how it’s done by Microsoft.