here\'s my web.config, running a WCF service in an application on IIS7, but nothing is being written to the specified file. permission on the file has been granted for ever
To write to the log file, make sure that identity running your web application has write access to the log directory.
You can find the identity in the IIS 7 management console. Select the application pool that your web application is using. Click on Advanced Settings... In the properties window, look for the identity field. It may say Network Service. This is the account that needs write permission to your log output folder.
If you already have a log file in this directory, try deleting it and letting the framework create it.
Hope this helps.