XAMPP 1.5.1 mod_authz_ldap or mod_authn_alias

[asp]

Am I missing something or has LDAP authentication been removed from the latest version of XAMPP (1.5.1)?

Could someone point me in the right direction? Basically my installation is currently dependant on the mod_auth_ldap module. I realize things have changed with apache 2.2, but I was unable to find the mod_authn_alias or the mod_authz_ldap module in the XAMPP 1.5.1 distribution.

Any information would be great! Thanks for putting together such a useful package!

Aaron