Software⏱️ 2 min read📅 2026-05-31

How to Fix: HttpListener Access Denied

Learn how to fix: HttpListener Access Denied.

Quick Answer: Try checking your system settings or restarting.

The HttpListenerAccessDenied error occurs when the HTTP listener is unable to bind to a port due to security restrictions or insufficient privileges. In your case, running the application in admin mode allows it to work correctly.

🚀 How to Resolve This Issue

Method 1: Run as a Service

  1. Step 1: Create a Windows service using the Service Process and install it as a background process.

Method 2: Elevate Privileges at Runtime

  1. Step 1: Use the CreateProcessAsUser function to run your application with elevated privileges.

🎯 Final Words

By implementing one of these methods, you can resolve the HttpListenerAccessDenied error and run your application without requiring admin mode.

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