You may not see "Active Directory Schema" snap-in in your MMC "Add/Remove snap-in" menu, unless you register the related dll file.
1. Run Command Prompt by opening "run" dialog from Windows start menu, type "Cmd" and hit ENTER. Type regsvr32 schmmgmt.dll. A message box informs you that the registration succeeded.
2. To open "Active Directory Schema" snap-in, open mmc, choose menu "File", and then "Add/Remove snap-in Click "Add" button Select "Active Directory Schema" from "Add Standalone Snap-in" and click "Add' button, and then click "OK" button In console tree of the “Active Directory Schema” snap-in, right click the “Active Directory Schema”.
3. make sure that you are logged on as a member of the Schema Admins group to do this.
1. Run Command Prompt by opening "run" dialog from Windows start menu, type "Cmd" and hit ENTER. Type regsvr32 schmmgmt.dll. A message box informs you that the registration succeeded.
2. To open "Active Directory Schema" snap-in, open mmc, choose menu "File", and then "Add/Remove snap-in Click "Add" button Select "Active Directory Schema" from "Add Standalone Snap-in" and click "Add' button, and then click "OK" button In console tree of the “Active Directory Schema” snap-in, right click the “Active Directory Schema”.
3. make sure that you are logged on as a member of the Schema Admins group to do this.