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I'm working on an asp.Net project. I developed an aspx page which uses dll that I was provided.

When I tested under Visual Studio (2015) it works very well.

I'm trying my page under IIS (localhost) I have an error 500.

HTTP Error 500.0 - Internal Server Error

Failed to call GetProcAddress on the ISAPI filter "C: \ inetpub \ wwwroot \ ViaTrajectoryTest \ ViaTrajectoryTest \ Hl7.Fhir.Core.dll"

Any ideas ?

Vega
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user9670110
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  • Possible duplicate of [HTTP 500 Internal Error - IIS websites](https://stackoverflow.com/questions/4416068/http-500-internal-error-iis-websites) – amanb Apr 19 '18 at 14:27
  • The error message is super clear that an invalid ISAPI filter is registered. Create a valid filter please. – Lex Li Apr 19 '18 at 16:44

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