[PHP-DB] Oracle Dll

[aiQa]

Hi,
I installed Apache, oracle client on windows 2000. When I use  dl("php_oci8.dll")  
function it gives the following error.

Warning: Unable to load dynamic library 'c:\php\extensions\php_oci8.dll' - The 
specified module could not be found. in C:\htdocs\php.php on line 5

..but 'c:\php\extensions\php_oci8.dll'  is exactly there. What can be the problem?
(I also set extension_dir = c:\php\extensions\)


Thanks,
aiQa