At the same time Sysinternal utilities are available through web address too since a lot of years ago.
https://live.sysinternals.com/
There are, in any case, two interesting tools that are useful to browse Active Directory and to gain more information/edit:
Active Directory Explorer
https://technet.microsoft.com/en-us/sysinternals/adexplorer.aspx
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LdapAdmin
http://ldapadmin.org/