Reporting Services – Troubleshooting Report Viewer Rendering Issues in IIS7

Description of issue:  Report is not rendering in the application, or is rendering but the image buttons appear as a Red ‘X’ when viewing the report (see below): 

Internet Information Services (IIS) Handler Mappings does not contain Reserved.ReportViewerWebContro.axdhttpHandler and is unable to render the report viewer elements.

Check the following:

Open IIS7 and select your MarketingPilot WebServer application.

 1. Under IIS area, double-click on the Handler Mappings icon.

2.  At the Actions pane on the right, click on Add Managed Handler

3.  Enter the following information into the Add Managed Handler fields:

  • Request Path: Reserved.ReportViewerWebControl.axd
  • Type: Microsoft.Reporting.WebForms.HttpHandler
  • Name: Reserved-ReportViewerWebControl-axd

4.  Click OK.  Reserved-ReportViewerWebControl-axd handler is now added to your Handler Mappings list.  Run your report again.

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