Active Directory Users and Computers for Windows Server 2003 does not display all of the properties of an object. For example, the employeeType attribute of the User object is not visible. Custom VB scripts that allow editing can be added to the power menu for an object but this requires the script to be present on each of the clients that use Active Directory Users and Computers.
Windows 2008 improves on this by integrating an Attribute Editor into the both Active Directory Users and Computers and Active Directory Administrative Center. In Active Directory Users and Computers, it must be enabled by selecting Advanced Features from the View menu.
You can then right click on an object, select Properties and you will see an additional Attribute Editor tab that shows the attributes that are not normally visible.
However, when I tested, the Attribute Editor tab was did not when I viewed the properties from the results of a Find:
The Attribute Editor is also accessible through the Active Directory Administrative Center, the all-new tool delivered with Windows 2008 R2, provided you have added the Extensions sections to the Properties Page:
To use these features on a client computer, you must install Remote Server Administration Tools (RSAT). These are only supported on Vista and Windows 7.