PHP WINDOWS 2000 Testing Oracle DB with PHP

Hi All, I was trying to query Oracle from PHP. The Environment: Windows 2000, Oracle 9i, IIS 5, PHP 4.3.4 Built a PHP file and it works from the command prompt like C:/PHP >php -f c:\test\Hello.php I have enabled the extension extension=php_oci8.dll and also given r, rx permissions for the Internet Guest Account on C:\PHP And I still get the following error when I try from the Browser Fatal error: Call to undefined function: ocilogon() in C:\Test\hello.php on line 8 PHP Warning: Unknown(): Unable to load dynamic library 'c:\WinNt\System32\php_oci8.dll' - Access is denied. in Unknown on line 0 Appreciate U r Help!!