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Editorial Team
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Asked: 2026-05-15T23:30:05+00:00

This is a fairly obscure question, but I’m having a devil of a time

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This is a fairly obscure question, but I’m having a devil of a time figuring it out:

I’m running PHP on IIS and am using PHP’s DOTNET function to load Microsoft’s System.Speech class.

<?php

$recognizer= new DOTNET('System.Speech, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35', 'System.Speech');

?>

I’m getting a 500 error when I load the above file into my browser.

The error message says:

Fatal error: Uncaught exception
‘com_exception’ with message ‘Failed
to create COM object
`SAPI.SpSharedRecognizer’: Access is
denied. ‘

Ideas?

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1 Answer

  1. Editorial Team

    Sounds like, the web server account (IIS application pool identity) does not have access permissions to the resource file you are trying to open in your code.

    Also, there is a problem in your code – the DOTNET function requires two arguments – an assembly name and a class name. You are providing “System.Speech” as the second parameter – this is only a namespace, not the class.

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