How to consume http url for get/post in .net

[EDN Admin]

i have one http url which I have to consume in .net but when I am cosuming it I am getting an error
The remote server returned an error: (401) Unauthorized
the url is given by some other user we have to get /post the data from the same

I m using this code
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string url =" http://dev.b2b.corporate.ge.com/xml/Outbound/GISCompute http://dev.b2b.corporate.ge.com/xml/Outbound/GISCompute ";<br/>
HttpWebRequest GETRequest = (HttpWebRequest)WebRequest.Create(url);<br/>
GETRequest.Method = "GET";<br/>
Console.WriteLine("Sending GET Request");<br/>
GETRequest.PreAuthenticate = true;
<br/>
string credentials = System.Convert.ToBase64String(Encoding.UTF8.GetBytes("com.geaute" + ":" + "com.ute"));<br/>
GETRequest.Headers.Add("Authorization", "Basic " + credentials);<br/>
HttpWebResponse GETResponse = (HttpWebResponse)GETRequest.GetResponse();<br/>
Stream GETResponseStream = GETResponse.GetResponseStream();<br/>
StreamReader sr = new StreamReader(GETResponseStream);<br/>
Console.WriteLine("Response from Server");<br/>
Console.WriteLine(sr.ReadToEnd());



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could anyone provide some code snipt for the same or some modification on this
Please help
Thanks
Manoj

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