how i can connect c# for update Master SQLSERVER

Someone can help me how i can connect c# for update Master SQLSERVER

Quote:

namespace WindowsFormsApplication1 { public partial class Form1 : Form { private SqlConnection Cnn; private SqlCommand sqlCommand; public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { Cnn = new SqlConnection(@"Data Source=127.0.0.1;Initial Catalog=master;User Id=OBDC_DK;Password=123456"); Cnn.Open(); sqlCommand = new SqlCommand("UPDATE master, Cnn); sqlCommand.Parameters.Add("@Query", textBox1.Text); sqlCommand.ExecuteNonQuery(); MessageBox.Show("Update SucessFully"); } } }

I'm trying but no sucess someone can help me how i can fix this code for update Master Query Azanalizer Sql Server.
I make this code for he update on this sp_addlinkedserver
EXEC sp_addlinkedserver 'Server','','MSDASQL',NULL,NULL,'DRIVER={SQL Server};SERVER=localhost;UID=;PWD=;'

#moved

your update command are broken
you can`t update database you can update a row in table in database or exec procedure like

USE master;
GO
EXEC sp_addlinkedserver
N'MyLinkedServerName',
N'SQL Server';
GO

Bad if is for any public .exe or exe that people can decompile and have access to the db, make tcp connections and a console that is the receiver. The receiver in the vps or server and the .exe with connections for the user