我的默认浏览器是谷歌Chrome和接受的答案是给出以下错误:

系统无法找到指定的文件。

我解决了这个问题，并设法通过使用以下代码打开默认浏览器的URL:

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

看一下GeckoFX控件。

GeckoFX是一个开源组件 这使得嵌入Mozilla很容易 Gecko (Firefox)到任何。net Windows 表单应用程序。写得很干净， 完全注释的c#， GeckoFX是 完美的替换默认 基于Internet explorer的WebBrowser 控制。

这为我打开了默认设置:

System.Diagnostics.Process.Start(e.LinkText.ToString());

这适用于。net 5 (Windows):

 ProcessStartInfo psi = new ProcessStartInfo {
   FileName = "cmd.exe",
     Arguments = $ "/C start https://stackoverflow.com/",
     WindowStyle = ProcessWindowStyle.Hidden,
     CreateNoWindow = true
 };
 Process.Start(psi);

我是唯一一个害怕调用System.Diagnostics.Process.Start()的人吗?

        public bool OnBeforeBrowse(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, bool userGesture, bool isRedirect)
        {
            Request = request;
            string url = Request.Url;
            
            if (Request.TransitionType != TransitionType.LinkClicked)
            {   // We are only changing the behavoir when someone clicks on a link.
                // Let the embedded browser handle this request itself.
                return false;
            }
            else
            {   // The user clicked on a link.  Something like a filter icon, which links to the help for that filter.
                // We open a new window for that request.  This window cannot change.  It is running a JavaScript
                // application that is talking with the C# main program.
                Uri uri = new Uri(url);
                try
                {
                    switch (uri.Scheme)
                    {
                        case "http":
                        case "https":
                            {   // Stack overflow says that this next line is *the* way to open a URL in the
                                // default browser.  I don't trust it.  Seems like a potential security
                                // flaw to read a string from the network then run it from the shell.  This
                                // way I'm at least verifying that it is an http request and will start a
                                // browser.  The Uri object will also verify and sanitize the URL.
                                System.Diagnostics.Process.Start(uri.ToString());
                                break;
                            }
                        case "showdevtools":
                            {
                                WebBrowser.ShowDevTools();
                                break;
                            }
                    }
                }
                catch { }
                // Tell the browser to cancel the navigation.
                return true;
            }
        }

这段代码被设计用于CefSharp，但应该很容易适应。

你试过这里提到的Processas: http://msdn.microsoft.com/de-de/library/system.diagnostics.process.aspx吗?

你可以用

Process myProcess = new Process();

try
{
    // true is the default, but it is important not to set it to false
    myProcess.StartInfo.UseShellExecute = true; 
    myProcess.StartInfo.FileName = "http://some.domain.tld/bla";
    myProcess.Start();
}
catch (Exception e)
{
    Console.WriteLine(e.Message);
}