How to give map network drive path in console application?

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C#

SQL-Server

console

I made one console application which take backup of Sql database, and store it to given path,
It works perfect when i give this path as local Drive, But when i give path to map network drive path, means i want to save my backup in other network pc, it show error

Cannot open backup device
'Z:\Smart_Tracker_03_01_2014_12_44_21_F_1_0.bak'. Operating system
error 3(The system cannot find the path specified.). BACKUP DATABASE
is terminating abnormally.

Below is my code:

Success_backup = Execute_Query_Master_Database("BACKUP DATABASE " + DatabaseName + " TO DISK = '" + Backup_FileName + "' ");
Success_Alter_DB = Execute_Query_Master_Database("ALTER DATABASE " + DatabaseName + "  SET MULTI_USER ");
              



    public static  bool Execute_Query_Master_Database(string strQuery)
        {
            SqlConnection Conn = null;
            SqlCommand _command;
           
            {

                string connectionstring = @"Data Source=" + servername + ";Initial Catalog='master';User Id='" + UserName + "';Password='" + PassWord + "'";
                Conn = new SqlConnection(connectionstring);

                Conn.Open();
                _command = new SqlCommand();
                _command.Connection = Conn;
                _command.CommandType = CommandType.Text;
                _command.CommandText = strQuery;
                _command.CommandTimeout = 0;

              

                _command.ExecuteNonQuery();

                return true;

               
            }
            catch (Exception ex)
            {
              
                Console.WriteLine("Error occured in Function - Execute_Scaler_Master_Database()");
                Console.WriteLine("Error Message as below : ");
                Console.WriteLine("===========================");
                Console.WriteLine(ex.Message);
                Console.WriteLine();

                return false;
            }
            finally
            {
                _command = null;
                Conn.Close();
             
            }
        }

Kindly noted I pass 6 arguments

string[] args = new string[6];
           args[0] = "VARUN-PC"; //Sql Name
           args[1] = "Smart_Tracker"; //DataBase name
           args[2] = "sa"; // user Name
           args[3] = "admin@12"; // Password
           args[4] = "F"; // Backup type "F"mean full Backup here
           args[5] = @"Z:";  // path where to store database, here map drive