Description:
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I have 2 websites one of them are running in a Linux server with Apache and got NO PROBLEM... the other one is running in a Windows 2003 with IIS 6 and I have a problem. After change a page the values of session variables are lost.

I wrote a simple test script but I didn't find a solution, I read lots of articles along the internet but dind't find a solution:

teste_Sessao.php
<?
session_start();

$idsession = session_id();

$_SESSION['usracesso'] = 123; 
$usracesso2 = 456;
session_register('usracesso2'); // note that I try both ways to register
$usr = $_SESSION['usracesso'];

echo "SessionID: ".$idsession."<br>";
echo "User: ".$usr."<br>";
echo "User2: ".$usracesso2."<br>";

// making a link to the other page
echo "<a href=teste_sessao2.php?PHPSESSID=".$idsession.">teste_sessao2.php?PHPSESSID=".$idsession."</a>";
?>

teste_sessao2.php
<?
session_start();

$idsession = session_id();

$usr = $_SESSION['usracesso'];
$usr2 = $_SESSION['usracesso2'];

echo "SessionID: ".$idsession."<br>";
echo "User: ".$usr."<br>";
echo "User2: ".$usr2."<br>";
?>

I have no problem to get SessionID value but the others variables (usr and usr2) lost their values.