DriveWorks Pro 15: How To: Troubleshoot IIS (KB16081601) [send feedback...]

Troubleshoot IIS

Troubleshooting HTTP Error 500.19 - Internal Server Error

HTTP Error 500.19 or 500.21- Internal Server Error

If you see the page above when loading your site it may be due to ASP.NET 4.5 not being turned on or registered incorrectly.

Windows 8 and Windows Server 2012 only

To turn on the Windows Feature:

  1. Open Windows Control Panel and select Uninstall a program.
  2. From the sidebar of the "Uninstall or change a program" window select Turn Windows features on or off.
  3. From the Windows Features window search for the sub feature Internet Information Services>World Wide Web Services>Application Development Features and select ASP.NET 4.5.
  4. Click OK to turn the Windows Feature on.

Windows 7 and Windows Server 2008:

If you experience the Internal Server Error page ASP.NET may not be registered.

This can be caused by installing the .Net framework before IIS was first used.

The Technet article Troubleshooting an ASP.NET Installation (external link) gives more details.

The MSDN article ASP.NET IIS Registration Tool (external link) describes all options of the registration tool for Windows Vista, Windows Server 2008, or Windows 7.


Knowledge Base Article Ref:KB16081601

See also How To: Configure DriveWorks Live For IIS

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