1) Click on MIME Types :-
Action Pen : Add
FileNmae Extenstion :- .axd
MIME Type :- application/octet-stream
2) Click on Handler Mapping :-
Action pan Click Add Manage Handler
Request path: Reserved.ReportViewerWebControl.axd
Type: Microsoft.Reporting.WebForms.HttpHandler
Name: Reserved-ReportViewerWebControl-axd
