The Setup screen is used to enter the appropriate information before extending the schema.
The Directory Server section of the Setup screen enables you to select whether you will be using Active Directory or eDirectory, and to set the computer name and the port to be used for LDAP communications.
IMPORTANT: Extending the schema on Active Directory requires that the user be an authenticated Schema Administrator, that the schema is not write protected, and the directory is the FSMO role owner in the tree. The installer will attempt to make the target directory server the FSMO Schema Master of the forest.
To get write access to the schema on Windows® 2000 requires a change to the registry safety interlock. If the user selects the Active Directory option, the schema extender will attempt to make the registry change. It will only succeed if the user has rights to do this. Write access to the schema is automatically enabled on Windows® Server 2003.