Your network contains a server named Server1 that runs Windows Server 2008 R2. On Server1，  you create an Active Directory Lightweight Directory Services （AD LDS） instance named  Instance1.    
You connect to Instance1 by using ADSI Edit. 
You run the Create Object wizard and you discover that there is no User object class. You need  to ensure that you can create user objects in Instance1.    
What should you do（）

Your network contains a server named Server1 that runs Windows Server 2008 R2. You create  an Active Directory Lightweight Directory Services （AD LDS） instance on Server1.    
You need to create an additional AD LDS application directory partition in the existing instance.    
Which tool should you use（）