How do you Authenticate a User against The Active Directory

I am writting a program using VBA and I want to know if there is a way to Authenticate a user against the Active Directory.  I would like the program to be able to have the user enter there username and password for the Domain and my program verify this data against the AD.
Alford-MillerAsked:
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JamesDSConnect With a Mentor Commented:
Alford-Miller

This is VBscript Code, but it should do what you want:

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' Create connection to AD with authorised user account.
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    strAuthUser            = "ADministrator"                                                ' Authorised user account name. Needs at least Domain Admin rights
    strAuthPassword        = "Pa55word"                                                ' Authorised user account password
    strAuthOUPath        = "ou=UsersAdmin"    ' Distinguished Name of OU containing Authorise User Account

sub AuthoriseOperation()

    ' Authenticate User
    Set oRoot    = GetObject("LDAP:")
    Set oOU        = oRoot.OpenDSObject("LDAP://dc=YOURDOMAIN, dc=COM", "cn="&strAuthUser&", "&strAuthOUPath, strAuthPassword, ADS_SECURE_AUTHENTICATION)
   
end sub
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You can alter the code to accept input from the user for username and password

Cheers

JamesDS
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Jared LukerCommented:
Sounds like you should ask this in the programming section...
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