a) Reports are empty and the report viewer component itself is broken with missing icons and buttons. b) A "404.0 - Not Found" error is shown instead of BI reports. Error details list module "IIS Web Core", notification "MapRequestHandler", handler "StaticFile" and error code "0x80070002". A) This problem may be caused by a missing HTTP handler in IIS 7 or 7.5. Please do the following: - Open IIS Manager (usually located in Start -> Control Panel -> Administrative Tools). - Find the web site AVRWEBPublisher belongs to under Internet Information Services -> your computer -> Sites and highlight it. - In the middle panel select Handler Mappings. - In the right panel under Actions click Add Managed Handler... - Fill the form this way: - Request path: Reserved.ReportViewerWebControl.axd - Type: Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a - Name: Reserved.ReportViewerWebControl.axd You may need to replace the version number 9.0.0.0 in Type to suit your system. - Restart IIS by running command IISRESET.
Quick fix: ReportViewer on IIS 7 Windows 8 not rendering The AVRWebPublisher app pool setting for Managed Pipeline Mode needed to be changed from 'Integrated' (default) to 'Classic' in IIS.