PHP4.0.4 built 20001210 and Oracle OCI8 and WinNT4 SP5

Hello, I am using PHP3 as CGI with Netscape Enterprise Server with Oracle OCI8, everything is working well. I have installed on the same machine PHP4 as CGI under the same Netscape Server . When I launch a simple file with <?echo ("It is working"); ?> everything works When I launch long php scripts without oracle connexion everything works When I launch php scripts (that worked with PHP3) with oracle connexion, I get the following Oracle error in the browser window : Warning: _oci_open_server: ORA-12154: TNS:could not resolve service name in d:/iaurif80/dev/test/index.ph4 on line 4 From the SQL+ (Oracle 8 SQL+ client) I can connect with the same connexion informations as in the script The database I want to connect to is 7.x.x Why? any ideas? Benoit NOSS - (benoit.noss@iaurif.org) (Bureau 226) IAURIF, Service MSI, 15 rue Falguiere, 75740 PARIS Cedex 15 FRANCE Tel : (+33) 1 53 85 78 04 Fax : (+33) 1 53 85 76 36