long lngFileSize; 
			byte[] bytBuffer; 
			int iReading; 
			string sFileName = path + fName; 
			Stream outStream = Response.OutputStream; 
			Response.ContentType="application/octet-stream"; 
			Response.AppendHeader("Connection","keep-alive"); 
			Response.AppendHeader("Content-Disposition"," attachment; filename = "+fName ); 
			FileStream fStream = new FileStream(sFileName,FileMode.OpenOrCreate,FileAccess.Read); 
			lngFileSize = fStream.Length; 
			bytBuffer = new byte[(int)lngFileSize]; 
			while((iReading=fStream.Read(bytBuffer,0,(int)lngFileSize)) > 0) 
			{ 
				outStream.Write(bytBuffer,0,iReading); 
			} 
			fStream.Close(); 
			outStream.Close(); 

			string sFileName = path + fName; 
			Response.ContentType="application/octet-stream"; 
			Response.AppendHeader("Connection","keep-alive"); 
			Response.AppendHeader("Content-Disposition"," attachment; filename = " + fName ); 
			Response.WriteFile( sFileName );
			Response.End();

Response.BinaryWrite(bytBuffer);