Paged Results Control questions

Hi, I have an LDAP client(LDP.exe) trying to send a paged search to the LDAP server but get a result code of unavailableCriticalExtension(12), which seems to indicate that the Paged Results extension isn't present (or disabled???).

The OpenLDAP server is running slapd version 2.2.28, which according to the OpenLDAP roadmap should have the "Simple Paged Results Extension". http://www.openldap.org/software/roadmap.html

So the obvious question, does 2.2.28 support Paged Results? If it does, could it be the extension is disabled? How would I enable it?

Also, what is a good LDAP query to verify extensions like the Simple Paged Results?

Thanks in advance, NJM