Problema instalando VBulletin

Fatal error: Call to undefined function set_magic_quotes_runtime() in C:\AppServ\www\includes\class_core.php on line 1644

    //    ****** DATABASE TYPE ******
    //    This is the type of the database server on which your vBulletin database will be located.
    //    Valid options are mysql and mysqli, for slave support add _slave.  Try to use mysqli if you are using PHP 5 and MySQL 4.1+
    // for slave options just append _slave to your preferred database type.
$config['Database']['dbtype'] = 'mysql';

    //    ****** DATABASE NAME ******
    //    This is the name of the database where your vBulletin will be located.
    //    This must be created by your webhost.
$config['Database']['dbname'] = 'nombre_db';

    //    ****** TABLE PREFIX ******
    //    Prefix that your vBulletin tables have in the database.
$config['Database']['tableprefix'] = 'alf_';

    //    ****** TECHNICAL EMAIL ADDRESS ******
    //    If any database errors occur, they will be emailed to the address specified here.
    //    Leave this blank to not send any emails when there is a database error.
$config['Database']['technicalemail'] = 'micorreo@mailing.com';

    //    ****** FORCE EMPTY SQL MODE ******
    // New versions of MySQL (4.1+) have introduced some behaviors that are
    // incompatible with vBulletin. Setting this value to "true" disables those
    // behaviors. You only need to modify this value if vBulletin recommends it.
$config['Database']['force_sql_mode'] = false;


    //    ****** MASTER DATABASE SERVER NAME AND PORT ******
    //    This is the hostname or IP address and port of the database server.
    //    If you are unsure of what to put here, leave the default values.
$config['MasterServer']['servername'] = 'localhost';
$config['MasterServer']['port'] = 3306;

    //    ****** MASTER DATABASE USERNAME & PASSWORD ******
    //    This is the username and password you use to access MySQL.
    //    These must be obtained through your webhost.
$config['MasterServer']['username'] = '*******';
$config['MasterServer']['password'] = '*******';

http://localhost/install/install.php

[B]Fatal error[/B]:  Call to undefined function set_magic_quotes_runtime() in [B]D:\Programas\AppServ\www\includes\class_core.php[/B] on line [B]1644
[/B]

$config['MasterServer']['username'] = 'root';
$config['MasterServer']['password'] = '1234';