How to Fix HTTP Error 500 (or 500.21) - Internal Server Error Handler SSINC-shtml?

Error Message


HTTP Error 500 (or 500.21) - Internal Server Error Handler SSINC-shtm' handler

Solution


  1. To fix this, we need to install required IIS features to execute the SSINC-shtm handler. Please follow below steps to install required IIS features.

  2. Login to server (VPS) and go to Control Panel → Programs → Programs and Features → Turn Windows features on or off.

  3. Select Internet Information Services → World Wide Web Services → Application Development Features.

  4. Make sure you have checked the check boxes of features: .NET Extensibility, ASP, ASP.NET, ISAPI Extensions, ISAPI Filters, Server-Side Includes.

  5. Then in IIS under Handler Mappings, make sure you have SSINC-shtm for path *.shtm, and SSINC-shtml for path *.shtml enabled for the ServerSideIncludeModule Handler, path type File.


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