Re: [PHP-WIN] error message appears "cannot find php_oci8.dll"

that's totally unrelated. His problem is a basic installation issue. Either the OCI client is missing or he is loading the wrong version (11G in 5.3 requires version 11). A wrong ISAPI would give a different error, like "this module is built for xyz but foo is used" API error check. Cheers, On W

Re: [PHP-WIN] error message appears "cannot find php_oci8.dll"

Have you tried running PHP as a FastCGI module instead of ISAPI? I'm not sure if it's still performing better or not, but at very least it is a lot easier to setup. --Kris