应用程序更新程序-不断收到401未经授权的错误

Question

Im testing out the .Net application updater component as decribed here Updater component

Im getting an issue that when the client tries to access the update.xml file I am getting a 401 Unathorized access error.

I can see the update.xml file when I go to the url through the web browser. Any ideas what Im doing wrong?

The "server" part is just on local host.

Edit

//Retrieve the File
        HttpWebRequest Request = (HttpWebRequest)HttpWebRequest.Create(url);
        Request.Headers.Add("Translate: f");
        Request.Credentials = CredentialCache.DefaultCredentials;

        //Set up the last modfied time header
        if (File.Exists(filePath)) 
            Request.IfModifiedSince = LastModFromDisk(filePath);

        try 
        {
            Response = (HttpWebResponse)Request.GetResponse();// this is where error is being thrown.
        }

Kind Regards

Ash

Answer 1

Have you tried running your uri through fiddler? - http://www.fiddler2.com/fiddler2/

Using this tool you can see the request and response, and potentially work out what is causing the issue more than just a 401 error.

Answer 2

Is your computer connecting to the Internet via an authenticating web proxy? If it is, .NET won't talk to the proxy unless the application configuration file contains a bit like this:

<system.net>
  <defaultProxy useDefaultCredentials="true"/>
</system.net>