Hi Sam.

I moved your post to the General forum. The UDF forum is for posting UDFs and discussing a specific posted UDF if there are issues with it.

Please take a look at this UDF and see if it answers your question or not.

ListNestedGroups() - Query AD for all groups of an account + nested
http://www.kixtart.org/forums/ubbthreads.php?ubb=showflat&Number=159640&site_id=1#import