&reftitle.install; LDAP support in PHP is not enabled by default. You will need to use the configuration option when compiling PHP to enable LDAP support. DIR is the LDAP base install directory. Note to Win32 Users In order to enable this module on a Windows environment, you must copy several files from the DLL folder of the PHP/Win32 binary package to the SYSTEM folder of your windows machine. (Ex: C:\WINNT\SYSTEM32, or C:\WINDOWS\SYSTEM). For PHP <= 4.2.0 copy libsasl.dll, for PHP >= 4.3.0 copy libeay32.dll and ssleay32.dll to your SYSTEM folder.