Check the following...
1) check your ext.ini file and make sure the ldap extension line is uncommented
2) make sure the ldap extension is present and in a directory where it can be executed (don't know what platform you're talking about here) - if you're talking win-nt then make sure it's in c:\winnt\system32 - you can find all of the nt extensions in the zip file - not the exe self-installer .
Dave
===========================================
http://badblue.com
Small footprint P2P web server for Windows,
File-sharing, PHP, wireless apps & more