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How to authenticate against Active Directory with WinNT:// provider?

Posted on 2009-05-09
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Last Modified: 2012-05-06
Hi, I got the following code from microsoft website to authenticate against AD but this code only valid with LDAP and not with WinNT:// because it uses DirectorySearcher which is not supported by WinNT://
How can I modify it to autheiticate agains AD with WinNT:// ?
Public Function IsAuthenticated(ByVal domain As String, ByVal username As String, ByVal pwd As String) As Boolean
 

            Dim domainAndUsername As String = domain & "\" & username

            Dim entry As DirectoryEntry = New DirectoryEntry(_path, domainAndUsername, pwd)
 

            Try

                'Bind to the native AdsObject to force authentication.			

                Dim obj As Object = entry.NativeObject

                Dim search As DirectorySearcher = New DirectorySearcher(entry)
 

                search.Filter = "(SAMAccountName=" & username & ")"

                search.PropertiesToLoad.Add("cn")

                Dim result As SearchResult = search.FindOne()
 

                If (result Is Nothing) Then

                    Return False

                End If
 

                'Update the new path to the user in the directory.

                _path = result.Path

                _filterAttribute = CType(result.Properties("cn")(0), String)
 

            Catch ex As Exception

                Throw New Exception("Error authenticating user. " & ex.Message)

            End Try
 

            Return True

        End Function

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Question by:Abdu_Allah
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by:qf3l3k
ID: 24349554
Not sure if this is what you are looking for:

Set objComputer = GetObject("WinNT://MyDomain/TestComputer,computer")
Set objGroup = GetObject("WinNT://MyComputer/TestGroup,group")
Set objUser = GetObject("WinNT://MyDC/MyDomain/JohnDoe,user")

Above 3 examples how to bind different type of object.

Is that method you looking for or you have more specific need?
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Author Comment

by:Abdu_Allah
ID: 24353104
>Is that method you looking for or you have more specific need?
No that is not what I want , all what I want  is to verify that the user is exist and if so check if the password he provided match the one that is stored in the AD (Authentication process.)
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Accepted Solution

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qf3l3k earned 500 total points
ID: 24354034
Maybe this piece of code will work for you then:

On Error Resume Next

Set dso = GetObject("WinNT:")
Set lobjUser = dso.OpenDSObject("WinNT://DOMAIN", "DOMAIN\username", "abc123", 1)

WScript.Echo Err.Number

If Err.Number = 0 Then
      AuthenticateUser = 0
      WScript.Echo "Authenticated"
      
      Else

      AuthenticateUser = 1 'not authenticated
      WScript.Echo "Not Authenticated"
      
End If


Hope that will be a bit of a help?
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Expert Comment

by:qf3l3k
ID: 24354052
In fact one more thing. I did test it in VBscript, that's why code is minimal.
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Author Comment

by:Abdu_Allah
ID: 24354482
This is a VB 6 not .NET!
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