Removing Users from a Group
The following code example shows how to remove users from a group. For this task, find the user to be removed, which in the example is User Name, then call the Remove method.
[C#]
DirectoryEntry dom = new DirectoryEntry(); DirectoryEntry ou = dom.Children.Find("OU=Consulting"); // Add a user to a group. DirectoryEntry usr = ou.Children.Find("CN=User Name");String userDN = usr.Properties["distinguishedName"].Value.ToString(); group.Properties["member"].Remove(userDN); group.CommitChanges();