Im getting 404 error on my web application, I also try doloto : http://research.microsoft.com/en-us/projects/doloto/ , but reports tell me is an compression issue, I dont think so cause is just one page with some ajaxcontroltoolkit features.
this is the stack :
ModuleName IIS Web Core
Notification 16
HttpStatus 404
HttpReason Not Found
HttpSubStatus 0
ErrorCode 2147942402
ConfigExceptionInfo
Notification MAP_REQUEST_HANDLER
ErrorCode The system cannot find the file specified. (0x80070002)