[wcf] HTTP could not register URL http://+:8000/HelloWCF/. Your process does not have access rights to this namespace

I'm a beginner in WCF, but trying to improve my experience. And on the first step I faced the problem. I created the simplest WCF service. The listing of code: (all the code in one file)

using System;
using System.ServiceModel;

namespace EssentialWCF
{
    [ServiceContract]
    public interface IStockService
    {
        [OperationContract]
        double GetPrice(string ticker);
    }

    public class StockService : IStockService
    {
        public double GetPrice(string ticker)
        {
            return 94.85;
        }
    }

    class Service
    {
        static void Main(string[] args)
        {
            ServiceHost serviceHost = new ServiceHost(typeof(StockService),
                                                        new Uri("http://localhost:8000/HelloWCF"));

            serviceHost.AddServiceEndpoint(typeof(IStockService), new BasicHttpBinding());
            serviceHost.Open();

            Console.WriteLine("To continue press ENTER");

            serviceHost.Close();
        }
    }
}

That would be the service that give me a number via console. But debug give me the exception: (instead of number :) )

HTTP could not register URL http://+:8000/HelloWCF/. Your process does not have access rights to this namespace (see http://go.microsoft.com/fwlink/?LinkId=70353 for details).

Have you ever faced the same situation? I will be glad to see every advice.

Right Click on Visual Studio > Run as Administrator > Open your project and run the service. This is a privilege related issue.

Unfortunately the link in the exception text, http://go.microsoft.com/fwlink/?LinkId=70353, is broken. However, it used to lead to http://msdn.microsoft.com/en-us/library/ms733768.aspx which explains how to set the permissions.

It basically informs you to use the following command:

netsh http add urlacl url=http://+:80/MyUri user=DOMAIN\user

You can get more help on the details using the help of netsh

For example: netsh http add ?

Gives help on the http add command.

In Windows Vista and later the HTTP WCF service stuff would cause the exception you mentioned because a restricted account does not have right for that. That is the reason why it worked when you ran it as administrator.

Every sensible developer must use a RESTRICTED account rather than as an Administrator, yet many people go the wrong way and that is precisely why there are so many applications out there that DEMAND admin permissions when they are not really required. Working the lazy way results in lazy solutions. I hope you still work in a restricted account (my congratulations).

There is a tool out there (from 2008 or so) called NamespaceManagerTool if I remember correctly that is supposed to grant the restricted user permissions on these service URLs that you define for WCF. I haven't used that though...

You must give permission to your app for listening http requests. You can use this command in cmd for this purpose (open cmd Run As Administrator mode)

netsh http add urlacl url=http://+:8000/ user=Everyone

If your app is working other port, for example 9095, this command must be like as below:

netsh http add urlacl url=http://+:9095/ user=Everyone

And re-run your app, it should work. This way working for me.

Close iis express and all the browsers (if the url was opened in any of the browser). Also open the visual studio IDE in admin mode. This has resolved my issue.

I closed Visual studio IDE and reopened it by right clicking on the Visual Studio icon and saying "Run as Administrator", Then when I ran the host , It worked!!!

Your sample code won't work as shown because you forgot to include a Console.ReadLine() before the serviceHost.Close() line. That means the host is opened and then immediately closed.

Other than that, it seems you have a permission problem on your machine. Ensure you are logged-in as an administrator account on your machine. If you are an administrator then it may be that you don't have the World Wide Web Publishing Service (W3SVC) running to handle HTTP requests.

You need some Administrator privilege to your account if your machine in local area network then you apply some administrator privilege to your User else you should start ide as Administrator...

The simple thing you need to do is to close your Visual Studio environment and open it again by using 'Run as administrator'. It should now run successfully.

While I was able to solve this problem in one computer following the other users solutions, the command netsh didn't solve the issue in one of my machines and even though the current user had administrator rights I was still getting the "HTTP could not register URL.... Your process does not have access rights to this namespace". So I'm sharing my solution in case you still don't get it to work with the other solutions too.

After also trying to give write permissions to the user in the physical directory of my website and getting no success, I finally decided trying to change IIS settings.

As the images below show, I configured the Physical Path Credentials of my website to connect as an specifc user, which was an admin account with DOMAIN\username and password, and this was enough to make the error disapear.