I'm assuming you're talking about LDMS 9.0 here?
OpenLDAP isn't a supported LDAP model, we only support Microsoft's LDAP as such. That doesn't mean that others don't work (if they do it's a pleasant surprise, but some are known to have problems).
If you want to have OpenLDAP added, it would need to go through the Enhancement Request process.
- Paul Hoffmann
LANDesk EMEA Technical Lead