Folks this has been a very helpful discussion, and I am hoping someone can help me with a similar LDAP problem.
I followed the various suggestions on this page and a previous instance of Moodle 1.9 on Windows 2003 (same server) had ldap working just fine.
I have the setup page for ldap, and php -m shows it is installed. All 3 dll's listed are in Windows\System 32 file, and the path shows as C:\Windows
When I put the settings in and attempt to authenticate I get an
error message in red stating
A required parameter (auth) was missing
The more information about this error points me to a generic moodle page with little info on it.
Key to understanding this is a previous install of 1.9 on this server was working just fine. and the same settings are working on a production server albeit in Ubuntu Os.
Any help you can provide would be greatly appreciated.