PolicyStore configured in ActiveDirectory has following schema.
ou=Netegrity,rootdn
CN=smxxx,CN=Schema,CN=Configuration,rootDN
CN=xpsxxx,CN=Schema,CN=Configuration,rootDN
When we try to delete CN=smxxx and CN=xpsxxx from ADSIEdit, so the operation fails by "Access is denied".
This is by design for ActiveDirectory.
SiteMinder r12.8
We can not delete PolicyStore schema in ActiveDirectory.