http://blogs.technet.com/sandy9182/archive/2007/05/15/getting-event-id-1023-and-event-id-1009.aspxFew days back I ran into an interesting problem. When we have a asp.net 1.1 application running on the server we might get the following event ids ocationally. Event Type: Error Event Source: .NET Runtime Event Category: None Event ID: 1023 Date: 02/18/07en-USCommunityServer 2.1 SP1 (Build: 61025.2)