Access Violation with oci8.dll

Hello! I am running PHP 4.3.2 under Win2k Adv Srv and IIS 5, in CGI mode. When I run any script,i.e. with a simple line: phpinfo(), itself generates an error. I detect that the problem only appears when the oci8.dll module is on. I have an complete and functional Oracle 8i installed on machine. Others modules, i.e., php_cpdf.dll and php_exif.dll, can run normally. my php.ini: doc_root = C:\Inetpub\wwwroot extension_dir = "C:\intranet-apps\php4\extensions\" First, an windows error message show (my translate): "unknown make errors and will be closed by Windows. You will need to restart the program. An error log will be created." After click on OK buttom of window message, the message above is appended to the end of the php's page result: "ERROR: could not get the task list " On the Event Viewer is created an log: Tipo de evento: Erro Origem do evento: Perflib Categoria do evento: Nenhuma Id. do evento: 1000 Data: 3/7/2003 Hora: 16:35:27 Usuário: N/A Computador: WEB-TO Descrição: Foi negado o acesso aos dados de desempenho para IUSR_WEB-TO, tentado por meio de C:\WINNT\System32\drwtsn32.exe Translate: " Access denied to performance's data to IUSR_WEB-TO, called by C:\WINNT\System32\drwtsn32.exe " Always, everybody enter the site, the message is showed on the server. Thanks! Eduardo Koelln --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.495 / Virus Database: 294 - Release Date: 30/6/2003