BeaverTail LDAP Browser
BeaverTail is a graphical Active Directory browser tool written in C#. BeaverTail is written and maintained by Marc Scheuner, a fellow Microsoft MVP, so this represents yet another shameless plug. We mention BeaverTail not so much because it is better than the previously mentioned tools, but because it is written in C#, it is freeware, and the source code is freely available. Even though we would like to believe that we have covered every possible LDAP programming scenario in this book, it is still often helpful to see example code in the context of a full-blown application.
BeaverTail is available as a free download from http://adsi.mvps.org/adsi/CSharp/beavertail.html.