what version of Oracle does php_oci8.dll support?

Good morning all. I'm a relative newbie to PHP, not to mention Oracle, and I need some help trying to get the two to talk together. My first question is in the subject: what version of Oracle does the php_oci8.dll library support? 8.0.x? 8.1.x? 8i? The reason that I'm asking is because I setup a new installation of PHP (v. 4.1.2) to use Apache (v. 1.3.20) and talk to Oracle (v. 8.0.6). (Just for completeness, my OS is win2000, sp 2.) If I use the php_oracle.dll, everything works fine. However, the moment that I include the "extension=php_oci8.dll" directive in the php.ini file, I get the following error when I start my Apache service: "The procedure entry point OCILobClose could not be located in the dynamic link library OCI.dll" Does this mean I can't use the php_oci8.dll functionality? Thanks. -- Jay Dickon Glanville