We avoid SID history like the plague and re-ACL.
KiXtart does not seem to understand SID history in the INGROUP command as you have stated by your example.
See my suggestion: http://www.kixtart.org/board/ultimatebb.php?ubb=get_topic;f=4;t=000320
My thought process above was to get the SID references from the SID history and then get the SIDS from the group in question and check for membership. I could not find and ADSI method(s) to collect the SIDs from a group in any efficient way.
