(V)ega

I'm having the same issue. I have tried alot everything I can find on the internet. I have set TNS_ADMIN in my environment variables. I keep getting the same error also: Warning: ocilogon() [function.ocilogon]: _oci_open_server: ORA-12154: TNS:could not resolve the connect identifier specified in c:\Inetpub\wwwroot\index.php on line 2 My code looks like this: <? if ($c = OCILogon("sys","lizzie","TEST")) { echo "Connection to database successfull!"; OCILogOff($c); } else { $err = OCIError(); echo $err['message']; } ?> Can someone provide a step by step guide that will help alot of us out. I'm running: Windows XP Professional w/ SP2 Oracle 9i Database Release 2 Enterprise PHP 5.0.4 IIS 5 Thanks in advanced (V)ega