Robert,

You could pick up on a technique shown on Randy Birch's site for
'Authenticating a User though the NT Challenge Process'. You can find it at
http://vbnet.mvps.org/, and search for the title I just gave you.

To quote the page into '...Windows users in a corporate environment are
familiar with the NT Challenge procedure .. they call it logging on. In a
nutshell, the NT Challenge attempts to confirm the credentials entered by
the user against security information on the login machine - the local
workstation or domain server. When the challenge is successful, the login
continues; when it is not, the user's attempted login count is incremented
by one until the administrator-defined account lockout point is reached.
....'

But be warned, it is not simple, and you will need to adapt his code to your
app. I hope you aren't expecting a simple solution.

--
HTH

Bob Phillips

"cmart02" wrote in message
...
I would like to authenticate one of my Excel Application against the
Windows
Username and Password. I have found out how to get the Username, but I am
unable to find anything on the password.

Does anyone know how to authenticate against the Windows password?

Thanks,
Robert