You may, for one reason or another, need to install Remote Server Administration Tools (RSAT) on your Windows client computer. You may want to perform administrative tasks in Active Directory Users and Computers, administer Certificates in Active Directory Certificate Services, or administer DNS or DHCP in DNS or DHCP Server Tools.
A month or so ago, I was asked to find a specific attribute (objectGUID, in case you wondered) of a group in Active Directory, for use in some third-party system. Thinking that this would be easily accomplished, I opened my Active Directory Users and Computers-window, and found the group in question. I opened the properties, but found the Attribute Editor tab sorely missing: