Event Viewer 10016 error (application log)

“The application-specific permission settings do not grant Local Activation permission…”

http://www.cleverworkarounds.com/2007/10/25/dcom-fun-with-sharepoint/

The blasted ‘An unexpected error has occurred’ error page with nothing in any log that you can find.

http://blog.thekid.me.uk/archive/2007/02/15/a-solution-to-quot-an-unexpected-error-has-occurred-quot-in-wss-v3.aspx

CAS errors on SqlClient (System.Data.SqlClient.SqlClientPermission). Use your c:\inetpub\wwwroot\wss\VirtualDirectories\<port number>\web.config to locate your active Security Policy config file rather than the following post’s suggestion.

http://www.mysharepointblog.com/2007/03/default.aspx