# Related resources
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The following resource links are located on the Microsoft website and provide related information. 

 
+ [Extending the Schema (Windows)](https://msdn.microsoft.com/en-us/library/ms676900(v=vs.85).aspx)
+ [Active Directory Schema (Windows)](https://msdn.microsoft.com/en-us/library/ms674984(v=vs.85).aspx)
+ [Active Directory Schema](https://technet.microsoft.com/en-us/library/cc961581.aspx)
+ [Windows Administration: Extending the Active Directory Schema](https://technet.microsoft.com/en-us/magazine/a39543ba-e561-4933-b590-0878885f44f5)
+ [Restrictions on Schema Extension (Windows)](https://msdn.microsoft.com/en-us/library/ms677924(v=vs.85).aspx)
+ [Ldifde](https://technet.microsoft.com/en-us/library/cc731033(v=ws.11).aspx)