Editing the ISAPI File Path

About this task

An error can occur when loading ISAPI filters.

Procedure

  1. Open Internet Information Services (IIS) Manager from the Server Manager, then right-click the icon to open the ISAPI Filters pane from the ISS section of the ISS Manager.
  2. Expand the Executable column and look for any executable path containing two backslashes instead of one. Right-click the executable and select Edit.
  3. Change the ISAPI Filter path to use a single slash, such as \aspnet_filter.dll as shown in the following example.
  4. Navigate to ISAPI and CGI Restrictions under IIS for the Report Server, then right-click to open the pane.
  5. Verify that the Framework and Framework64 extensions for ASP.NET, version 4.0.30919, are set to Allowed. Right-click an entry to make a change if necessary.