直接上代码啦>v<

 private static bool OpenBrowser(string url)
{
    RegistryKey key = Registry.ClassesRoot.OpenSubKey(@”http\shell\open\command\”);
    string val = key.GetValue(“”).ToString();
    string browserpath = null;
    if (val.StartsWith(“\””))
    {
        browserpath = val.Substring(1, val.IndexOf(‘\”‘, 1) – 1);
    }
    else
    {
        browserpath = val.Substring(0, val.IndexOf(” “));
    }
    return System.Diagnostics.Process.Start(browserpath, url) != null;
}