How to use the server name parameter in a connection string to specify the client network library

osql -Stcp:myServer,portNumber -E
				

using System;
using System.Data;
using System.Data.SqlClient;

namespace getCurrentProtocol
{
	/// <summary>
	/// Main Application Driver Class
	/// </summary>
	class Driver
	{
		static void Main(string[] args)
		{
			string sCxn = "server=myServer;Integrated Security=SSPI; database=master";
			//string sCxn = "server=np:myServer;Integrated Security=SSPI; database=master";
			//string sCxn = "server=tcp:myServer;Integrated Security=SSPI; database=master";
			//string sCxn = "server=rpc:myServer;Integrated Security=SSPI; database=master";
			//string sCxn = "server=lpc:myServer;Integrated Security=SSPI; database=master";
			string sCmd = "SELECT net_library from sysprocesses where spid=@@spid";
			SqlConnection cxn = new SqlConnection(sCxn);
			SqlCommand sqlCmd = new SqlCommand(sCmd, cxn);
			SqlDataAdapter sqlDa = new SqlDataAdapter(sCmd, cxn);
			DataTable dt = new DataTable();
			try 
			{
				sqlDa.Fill(dt);
				Console.WriteLine("Hit ENTER to continue ...");
				Console.ReadLine();
				foreach (DataRow dr in dt.Rows)
					Console.WriteLine(dr["net_library"]);
			} 
			catch (SqlException e)
			{
				Console.WriteLine(e.StackTrace);
				Console.WriteLine("SQL Error Number: " + e.Number);
				Console.WriteLine("SQL Error Message: " + e.Message);
				
			}
		}
	}
} 
				

string sCxn = "server=myServer;Integrated Security=SSPI; database=northwind"