ELMAH (Error Logging Modules and Handlers) is an application-wide error logging facility that is completely pluggable. It can be dynamically added to a running ASP.NET...
elmah (error logging modules and handlers) is an applicationwide error logging facility that is completely pluggable. it can be dynamically added to a running asp.net web application, or even all asp.net web applications on a machine, without any need for recompilation or redeployment.
once elmah has been dropped into a running web application and configured appropriately, you get the following facilities without changing a single line of your code:
asp-net error-logging log-errors