C I've made a program that blocks ads (sort of)

Code
#include <iostream>

#include <string>

#include <fstream>



using namespace std;



int main()

{

    bool error = 0;

    string line;



    fstream hosts("C:\\Windows\\System32\\drivers\\etc\\hosts", ios_base::app);  //change to C:\\Windows\\System32\\drivers\\etc\\hosts when you've stopped being an idiot





    fstream servers("servers.txt");







    if (hosts.is_open() && servers.is_open())

    {

        while (getline(servers, line))

        {

            hosts << line << '\n';

            cout << line << endl;

        }

        {

            cout << line << '\n';

        }

    }

    else if (!hosts.is_open())

    {

        cout << "Could not open the hosts file." << endl;

        cout << "Please make sure you have run this program as an administrator" << endl;

        error = 1;

    }

    else if (!servers.is_open())

    {

        cout << "Could not open the servers file." << endl;

        cout << "Please make sure the servers file is in the same directory as the .exe file" << endl;

        error = 1;

    }

    else

    {

        cout << "Error, can't open the file" << endl;

        error = 1;

        cout << "Error code 198237" << endl; //make it look like i know why the file won't open

    }





    cout << endl;

    cout << endl;

    cout << endl;

    cout << endl;

    cout << endl;

    cout << endl;

    cout << endl;

    cout << endl;

    if (!error)

        cout << "Welcome to the adfree world" << endl;





    system("PAUSE");

    return 0;



}