80070057 means invalid parameter, # as an HRESULT: Severity: FAILURE (1), FACILITY_WIN32 (0x7), Code 0x57 # for hex 0x57 / decimal 87 ERROR_INVALID_PARAMETER winerror.h # The parameter is incorrect. # 15 matches found for "80070057" So I think when EventLogProvider tried to log an entry, it found that an invalid parameter was passed to the function call. It is hard to debug as we don't know what parameters were passed. this exception not have a negative hit on the application.Marco Adamo

Any one please help me to find the reason for this error happening in my IIS server. Event ID: 1301 Event name: ASP.NET 2.0.50727.0 The following exception was thrown by the web event provider 'EventLogProvider' in the application '/' (in an application lifetime a maximum of one exception will be logged per provider instance): System.Web.HttpException: The EventLogWebEventProvider provider failed to log an event with the error code 0x80070057. at System.Web.Management.EventLogWebEventProvider.ProcessEvent(WebBaseEvent eventRaised) at System.Web.Management.WebBaseEvent.RaiseInternal (WebBaseEvent eventRaised, ArrayList firingRuleInfos, Int32 index0, Int32 index1). Thanks Jerry

Hi Jerry, I would recommend you to post your query in ASP forum. You may good better response from then as they are experts in ASP.NET http://forums.asp.net/ Similar one: http://forums.iis.net/t/1157563.aspx Regards, Rafic If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". This posting is provided "AS IS" with no warranties and confers no rights! Always test ANY suggestion in a test environment before implementing!

80070057 means invalid parameter, # as an HRESULT: Severity: FAILURE (1), FACILITY_WIN32 (0x7), Code 0x57 # for hex 0x57 / decimal 87 ERROR_INVALID_PARAMETER winerror.h # The parameter is incorrect. # 15 matches found for "80070057" So I think when EventLogProvider tried to log an entry, it found that an invalid parameter was passed to the function call. It is hard to debug as we don't know what parameters were passed. this exception not have a negative hit on the application.Marco Adamo