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Error: "Internal Server Error" when accessing WebUI

Symptom:

After installing Venafi Encryption Director 6.x, the WebUI client is unable to be displayed. The Windows Administration Console (WinUI) loads fine, but when attempting to access the WebUI, the following error is displayed:

HTTP Error 500.21 - Internal Server Error

Handler "PageHandlerFactory - Integrated" has a bad module "ManagedPipelineHandler" in its module list 

500_error.png

Cause:

One known cause for this issue is not having .NET 4.0 installed fully/properly. This is the case if there are no ASP.NET 4.0 entries in the IIS Application pool list.

app_pool.png

Resolution:

To Resolve, do not try to manually create the missing entries. Run the following command:

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i

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