oci_connect(Oracle) error on PHP & IIS ?

[nhantam]

$db = "(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)
(HOST = 192.168.1.2)(PORT = 1521)))
(CONNECT_DATA =(SERVER = DEDICATED)(SID = orcl)))";

$conn = oci_connect('aaa', 'bbb', $db);
$s = oci_parse($conn, 'select * from CLIACCT ');
oci_execute($s);
while (($row = oci_fetch_array($s, OCI_ASSOC)) != false ) {
   foreach ($row as $item) {
     print $item;
   }
} 

 

I'am connect other computer our LAN 192.168.1.2

my system IIS(WinXP) & PHP 5.2 error

Warning: oci_connect() [function.oci-connect]: OCIEnvNlsCreate() failed. 
There is something wrong with your system - 
please check that PATH includes the directory with Oracle Instant Client libraries 
in C:Inetpubwwwrootoracletest_2.php on line 111

 

But I am move my code above XAMP apache run OK. I don't understand why PHP & IIS error, could you help me ?

How do I to something on PHP & IIS ? Thank you very much.