How Can I Open Links in the Default Browser Instead of Internet Explorer from My C# Application?

Opening Links in the Default Browser from C#: A Practical Guide

In C# web application development, it's crucial that links open in the user's default web browser. However, some users experience links launching in Internet Explorer (IE), even if a different browser (like Chrome) is their system default.

Understanding the Issue

The built-in WebBrowser control in C# applications is inherently tied to Internet Explorer. Therefore, links within this control will default to IE, regardless of the system's default browser settings.

Effective Solutions

Developers can use these methods to resolve this:

1. Leveraging System.Diagnostics.Process

For .NET Framework (excluding .NET Core and .NET 5 ), this code snippet opens links in the default browser:

System.Diagnostics.Process.Start("http://google.com");

2. Managing the Navigating Event

To override the WebBrowser control's behavior, handle its Navigating event:

private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e)
{
    // Redirect navigation to the default browser
    System.Diagnostics.Process.Start(e.Url.ToString());
    e.Cancel = true;
}

Important Notes

System misconfigurations or corrupted installations can sometimes lead to IE launching unexpectedly. Verify your system's default browser settings are correctly configured. Reinstalling the .NET Framework may also resolve potential corruption issues.

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