I've had a patch for the Filter handling sitting here half-finished for quite a while. The intent is to preserve all of the original filter data so that it can be reused directly. On a related note, RFC4511 changes the behavior of presence matching on unknown attributes to be Undefined now instead of FALSE. So presumably we should update our code accordingly. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc OpenLDAP Core Team http://www.openldap.org/project/