help me with this

[John Ray]

Fatal error: Call to undefined function mssql_pconnect() in C:\xampp\htdocs\config\config.php on line 5

<?php
function Conectarse()
{
global $link;
if (!($link=mssql_pconnect("","sa","")))
{
exit();
}
if (!mssql_select_db("UserLogin",$link))
{
exit();
}
return $link;
}
Conectarse();


$AccDir = "C:\\Servers\\Kathana4\\account";
$NameServer = "InterGamesEvolution";
$TantraWebLink = "http://tantra.zonegamerz.net";
$TantraForumLink = "http://forum.zonegamerz.net/";
$SupportLink = "http://support.zonegamerz.net/";


//Datos para envios de Email
$SMTPUser = "d4rkmod@gmail.com"; //Usuario GMail o cuenta POP3
$SMTPPass = "shikinkira"; //Password
$SMTPEmail = "prueba@soianal.com"; //Email del Remitente
$SMTPName = "Zone Gamerz"; //Nombre del Remitente


//Nombre de Cuentas GM para eliminar del Ranking
$GM1 = "Elianmp"; //Elian
$GM2 = "tandev01"; //Edwin
$GM3 = "d4rkmod"; //Luiz
$GM4 = "sebastian"; //Sebastian


//Links de las Descargas
$LinkC1 = "http://www.megaupload.com/?d=PSE5BVH0"; // Link


Cliente Megaupload
$LinkC2 = "https://rapidshare.com/files/1083423787/setup.exe";


// Link Cliente Mediafire
$LinkP1 = ""; // Link Parche Megaupload
$LinkP2 = ""; // Link Parche Mediafire


$mantenimiento = "Off"; // Modo Mantenimiento On / Off
?>

please help me fix it.

[MentaL]