I am using EntLib-June2005 as it was for .net 1.1 framework. I want to use the logging application block(LAB). Several times, I used the LAB in windows application and it worked for me. Now when I was trying to put the logger in asp.net appplication, it is showing some error like ASP.NET doesn't have the required permission to write the log. It seems to me ASP.NET doesn't able to access the filesystem/eventlog in the webserver. So I need to put some security configuration in my web.config file so that ASP.NET can access/write into the flat file/event log. In order to find the solution, I googled and found there are some tips to change the registry settings. I dont want to change the registry settings for webserver. Other than this, if anyone can help me to give the process to put the security permission on web.config file for LAB to work in case of ASP.NET, that would be really appreciable.