Problem with Oracle and some other extensions on IIS Server

Hi, My problem is very simple but i can't handle it. I'm LAMP developer by the way. I have not much knowledge on IIS server with PHP, Anyway, i can't load php_oci8.dll and some other DLLs. Error message always same; PHP Warning: PHP Startup: Unable to load dynamic library 'c:\PHP\ext\php_oci8.dll' - The specified procedure could not be found. in Unknown on line 0 but location for php_oci8.dll is right and the file exist. Also the file is not readonly or sys file. Just an archive file like other extensions. I try to copy the file to winnt folder, system32 folder and adding the paths (c:/php and c:/php/ext/) to system envrionment variables. I must solve this problem til morning. Please help. P.S. : I'm not the admin of this server. I just request and they will do. -- Tim