Hi,
Could you please attach an error screenshot or provide exception stack trace? There might be such information available in Windows Event Log. Also, it would help if you mentioned which version of the UWS you are using and how you have registered the application.
The fact that application works as a console/windows app and doesn't as web app points to security and/or access rights problem. We can see that your server-side code is attempting to generate speech sound, on the server. Given that web applications usually run as services, w/o anyone being logged in to the server, what purpose could this possible serve?
Best regards,
UltiDev Team.
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