来自注册表的DefaultBrowser无法正常工作

Question

I'm trying to open a url in the default browser. Obviously I thought that Shell Exec will open it in the default browser but it doesn't.

Then I tried explicit:

Process.Start(GetDefaultBrowserPath(), "http://stackoverflow.com");

private static string GetDefaultBrowserPath()
{
    string key = @"htmlfile\shell\open\command";
    RegistryKey registryKey =
    Registry.ClassesRoot.OpenSubKey(key, false);
    // get default browser path
    return ((string)registryKey.GetValue(null, null)).Split('"')[1];
}

It always returns Internet Explorer but not my default which is Firefox. I tried it on several computers...

I don't care which way to call the link in the default browser, but it has to be the default

Answer 1

Have you tried just running:

Process.Start("http://stackoverflow.com");

My test application (below) opens the site in my default browser:

using System;
using System.Diagnostics;

namespace ProcessStartSample
{
    class Program
    {
        static void Main(string[] args)
        {
            Process.Start("http://stackoverflow.com");
        }
    }
}

In other words, let the operating system do the heavy work of working out what the users default browser is for you! =)

Answer 2

Just Try this :)

Process.Start("http://stackoverflow.com");

And if you want to find your default browser you should open HKEY_CLASSES_ROOT\\http\\shell\\open\\command\\default key.

Please pay attention "http" not "htmlFile"

EDIT:

CODE:

RegistryKey registryKey = Registry.ClassesRoot.OpenSubKey(@"http\shell\open\command", false);
string value = registryKey.GetValue("").ToString();

Answer 3

Windows will start the default browser on the user's system for you automatically if you just specify the URL to open:

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

No need for any fancy Registry trickery, unless you are trying to ascertain which browser is set as the default.