LDAP for Windows XP

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mag - 12 Feb 2008 21:49 GMT

Hi,

I have a windows application that requires security login and I would
like to retrieve the windows XP user ID and Password to compare it
with their entries to the application. Any help would be very much
appreciated due to short deadline. I do not think I have the right
LDAP for XP.

Some of my code:

Dim sRoot As String = "LDAP://"

_windowsLogin = Me.txtUserID.Text
_windowsPswd = Me.txtPassword.Text

Dim objRootEntry As DirectoryEntry = New DirectoryEntry(sRoot,
_windowsLogin, _windowsPswd, AuthenticationTypes.Secure)

Thanks,

Mag

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Joe Kaplan - 13 Feb 2008 03:14 GMT

Are you trying to authenticate a user in Active Directory or on the local
machine? You can't authenticate local machine users with LDAP.

Joe K.

Signature

Joe Kaplan-MS MVP Directory Services Programming
Co-author of "The .NET Developer's Guide to Directory Services Programming"
http://www.directoryprogramming.net
--

> Hi,
>
[quoted text clipped - 17 lines]
>
> Mag

Reply to this Message

mag - 13 Feb 2008 18:04 GMT

On Feb 12, 10:14 pm, "Joe Kaplan"
<joseph.e.kap...@removethis.accenture.com> wrote:

> Are you trying to authenticate a user in Active Directory or on the local
> machine? You can't authenticate local machine users with LDAP.
[quoted text clipped - 28 lines]
>
> - Show quoted text -

Thanks for your response,
I am actually trying to uthenticate the user of a local machine. Is
there a way to do that?

Reply to this Message

Joe Kaplan - 13 Feb 2008 19:17 GMT

I'd suggest doing a p/invoke of the LogonUser API. This is probably the
best way and will work with either type of account (domain or local).

The PrincipalContext object in .NET 3.5 can authenticate users in AD, ADAM
or SAM (local machine), but I've heard reports that the SAM support
sometimes provides mysterious results.

You can also try using the WinNT provider for S.DS instead of LDAP, but I
don't know if that will work reliably either.

Joe K.

Signature

Joe Kaplan-MS MVP Directory Services Programming
Co-author of "The .NET Developer's Guide to Directory Services Programming"
http://www.directoryprogramming.net
--

On Feb 12, 10:14 pm, "Joe Kaplan"
<joseph.e.kap...@removethis.accenture.com> wrote:

> Are you trying to authenticate a user in Active Directory or on the local
> machine? You can't authenticate local machine users with LDAP.
[quoted text clipped - 32 lines]
>
> - Show quoted text -

Thanks for your response,
I am actually trying to uthenticate the user of a local machine. Is
there a way to do that?

Reply to this Message

LDAP for Windows XP

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