User related:
https://docs.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iadsuser

Group related:
https://docs.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iadsgroup

Some others:

https://docs.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iads

https://docs.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iadscontainer

https://docs.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iadsnamespaces

https://docs.microsoft.com/en-us/windows/win32/api/iads/nn-iads-iadsopendsobject

https://docs.microsoft.com/en-us/windows/win32/api/iads/

(taken from: https://www.experts-exchange.com/questions/21282035/DirectoryEntry-Invoke-Methods.html)