LDAP for Windows XP   

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

date: Tue, 12 Feb 2008 13:49:29 -0800 (PST)   author:   mag

Re: LDAP for Windows XP   

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.

-- 
Joe Kaplan-MS MVP Directory Services Programming
Co-author of "The .NET Developer's Guide to Directory Services Programming"
http://www.directoryprogramming.net
--
"mag"  wrote in message 
news:c0731512-92da-4959-8c44-0304be0d6fd2@e10g2000prf.googlegroups.com...
> 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

date: Tue, 12 Feb 2008 21:14:27 -0600   author:   Joe Kaplan

Re: LDAP for Windows XP   

On Feb 12, 10:14 pm, "Joe Kaplan"
 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.
>
> Joe K.
>
> --
> Joe Kaplan-MS MVP Directory Services Programming
> Co-author of "The .NET Developer's Guide to Directory Services Programming"http://www.directoryprogramming.net
> --"mag"  wrote in message
>
> news:c0731512-92da-4959-8c44-0304be0d6fd2@e10g2000prf.googlegroups.com...
>
>
>
> > 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- Hide quoted text -
>
> - 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?

date: Wed, 13 Feb 2008 10:04:31 -0800 (PST)   author:   mag

Re: LDAP for Windows XP   

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.

-- 
Joe Kaplan-MS MVP Directory Services Programming
Co-author of "The .NET Developer's Guide to Directory Services Programming"
http://www.directoryprogramming.net
--
"mag"  wrote in message 
news:223bc52b-9f58-43e2-aea9-99bf2eedc038@v4g2000hsf.googlegroups.com...
On Feb 12, 10:14 pm, "Joe Kaplan"
 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.
>
> Joe K.
>
> --
> Joe Kaplan-MS MVP Directory Services Programming
> Co-author of "The .NET Developer's Guide to Directory Services 
> Programming"http://www.directoryprogramming.net
> --"mag"  wrote in message
>
> news:c0731512-92da-4959-8c44-0304be0d6fd2@e10g2000prf.googlegroups.com...
>
>
>
> > 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- Hide quoted text -
>
> - 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?

date: Wed, 13 Feb 2008 13:17:15 -0600   author:   Joe Kaplan