HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(uri); 
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse(); 
Stream receiveStream = myHttpWebResponse.GetResponseStream();
BinaryReader  readStream = new BinaryReader ( receiveStream);
MemoryStream ms = new MemoryStream();
byte[] read = new byte[256];
int count = readStream.Read( read, 0, 256 );
while (count > 0) 
	{
            ms.Write(read, 0, count) ;
	   count = readStream.Read(read, 0, 256);
	}
myHttpWebResponse.Close();
readStream.Close();
Bitmap bmp = new Bitmap(ms);
ms.Close();