Getting PHP on XP Pro to communicate with an Informix Server

The following is the system I am currently using to communicate with an Informix Server: System: Windows NT DAVIDS 5.1 build 2600 (XP Professional) Apache Version: Apache/2.0.47 (Win32) PHP/4.3.3 I have the following line in a PHP file: $db = ifx_connect ("db@server", "username", "passwd"); When I try to access the page that contains this I get the following error message, same when I used ifx_pconnect(): Warning: ifx_connect(): E [SQLSTATE=IX 001 SQLCODE=-1829] in C:\\webroot\\index.php on line 9 Which the -1829 translates to: Cannot open file citoxmsg.pam. The file citoxmsg.pam is missing from the directory $INFORMIXDIR/msg. When I look in that directory the file does exist. My informix directory is in C:\\informix. My System variables has the INFORMIXDIR pointing to C: \\Informix. I am running INFORMIX-ESQL Setnet32 Utility 9.21 2.30.TC1 Thanks, David